diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 09:45:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-04-29 09:45:48 -0700 |
| commit | 92ddcf4a011a95dac98d3bbb0211a2fa42f13dc1 (patch) | |
| tree | ac937fd7cc4d53542c5c299c85df09b1b87bf1c8 /drivers | |
| parent | 000a74f41e601bc4e36a760aa42f219a019c5391 (diff) | |
| parent | 6445e6600fa632448cac64e71119310378464ad9 (diff) | |
Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon update from Guenter Roeck:
- New drivers for NCT6775, NCT6776, NCT6779, and LM95234.
- Added support for LTC2974, LTC3883, LM25056, TMP431, TMP432, ADT7310,
and ADT7320 to existing drivers.
- Various code cleanups and minor improvements.
* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (54 commits)
hwmon: (nct6775) Fix coding style problems
hwmon: (nct6775) Constify strings
hwmon: (tmp401) Add support for TMP432
hwmon: (tmp401) Add support for update_interval attribute
hwmon: (tmp401) Reset valid flag when resetting temperature history
hwmon: (tmp401) Simplification and cleanup
hwmon: (tmp401) Use sysfs_create_group / sysfs_remove_group
hwmon: (tmp401) Drop unused defines, use BIT for bit masks
hwmon: (nct6775) Use ARRAY_SIZE for loops where possible
documentation: hwmon: Fix typo in documentation/hwmon
hwmon: (nct6775) Enable both AUXTIN and VIN3 on NCT6776
hwmon: (ad7314) use spi_get_drvdata() and spi_set_drvdata()
MAINTAINERS: Add myself as maintainer for the NCT6775 driver
hwmon: (nct6775) Expand scope of supported chips
hwmon: (gpio-fan) Use is_visible to determine if attributes should be created
hwmon: (tmp401) Fix device detection for TMP411B and TMP411C
hwmon: Add driver for LM95234
hwmon: (tmp401) Add support for TMP431
hwmon: (pmbus/lm25066) Add support for LM25056
hwmon: (pmbus/lm25066) Refactor device specific coefficients
...
Diffstat (limited to 'drivers')
66 files changed, 7432 insertions, 1700 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 89ac1cb26f2..4f29117651b 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -179,9 +179,29 @@ config SENSORS_ADM9240 This driver can also be built as a module. If so, the module will be called adm9240. +config SENSORS_ADT7X10 + tristate + help + This module contains common code shared by the ADT7310/ADT7320 and + ADT7410/ADT7420 temperature monitoring chip drivers. + + If build as a module, the module will be called adt7x10. + +config SENSORS_ADT7310 + tristate "Analog Devices ADT7310/ADT7320" + depends on SPI_MASTER + select SENSORS_ADT7X10 + help + If you say yes here you get support for the Analog Devices + ADT7310 and ADT7320 temperature monitoring chips. + + This driver can also be built as a module. If so, the module + will be called adt7310. + config SENSORS_ADT7410 tristate "Analog Devices ADT7410/ADT7420" depends on I2C + select SENSORS_ADT7X10 help If you say yes here you get support for the Analog Devices ADT7410 and ADT7420 temperature monitoring chips. @@ -751,6 +771,16 @@ config SENSORS_LTC4261 This driver can also be built as a module. If so, the module will be called ltc4261. +config SENSORS_LM95234 + tristate "National Semiconductor LM95234" + depends on I2C + help + If you say yes here you get support for the LM95234 temperature + sensor. + + This driver can also be built as a module. If so, the module + will be called lm95234. + config SENSORS_LM95241 tristate "National Semiconductor LM95241 and compatibles" depends on I2C @@ -877,8 +907,22 @@ config SENSORS_MCP3021 This driver can also be built as a module. If so, the module will be called mcp3021. +config SENSORS_NCT6775 + tristate "Nuvoton NCT6775F and compatibles" + depends on !PPC + select HWMON_VID + help + If you say yes here you get support for the hardware monitoring + functionality of the Nuvoton NCT6775F, NCT6776F, NCT6779D + and compatible Super-I/O chips. This driver replaces the + w83627ehf driver for NCT6775F and NCT6776F. + + This driver can also be built as a module. If so, the module + will be called nct6775. + config SENSORS_NTC_THERMISTOR tristate "NTC thermistor support" + depends on (!OF && !IIO) || (OF && IIO) help This driver supports NTC thermistors sensor reading and its interpretation. The driver can also monitor the temperature and @@ -1204,8 +1248,8 @@ config SENSORS_TMP401 tristate "Texas Instruments TMP401 and compatibles" depends on I2C help - If you say yes here you get support for Texas Instruments TMP401 and - TMP411 temperature sensor chips. + If you say yes here you get support for Texas Instruments TMP401, + TMP411, TMP431, and TMP432 temperature sensor chips. This driver can also be built as a module. If so, the module will be called tmp401. diff --git a/drivers/hwmon/Makefile b/drivers/hwmon/Makefile index 8d6d97ea7c1..5c71fe6a9c7 100644 --- a/drivers/hwmon/Makefile +++ b/drivers/hwmon/Makefile @@ -34,6 +34,8 @@ obj-$(CONFIG_SENSORS_ADM9240) += adm9240.o obj-$(CONFIG_SENSORS_ADS1015) += ads1015.o obj-$(CONFIG_SENSORS_ADS7828) += ads7828.o obj-$(CONFIG_SENSORS_ADS7871) += ads7871.o +obj-$(CONFIG_SENSORS_ADT7X10) += adt7x10.o +obj-$(CONFIG_SENSORS_ADT7310) += adt7310.o obj-$(CONFIG_SENSORS_ADT7410) += adt7410.o obj-$(CONFIG_SENSORS_ADT7411) += adt7411.o obj-$(CONFIG_SENSORS_ADT7462) += adt7462.o @@ -86,6 +88,7 @@ obj-$(CONFIG_SENSORS_LM87) += lm87.o obj-$(CONFIG_SENSORS_LM90) += lm90.o obj-$(CONFIG_SENSORS_LM92) += lm92.o obj-$(CONFIG_SENSORS_LM93) += lm93.o +obj-$(CONFIG_SENSORS_LM95234) += lm95234.o obj-$(CONFIG_SENSORS_LM95241) += lm95241.o obj-$(CONFIG_SENSORS_LM95245) += lm95245.o obj-$(CONFIG_SENSORS_LTC4151) += ltc4151.o @@ -103,6 +106,7 @@ obj-$(CONFIG_SENSORS_MAX6650) += max6650.o obj-$(CONFIG_SENSORS_MAX6697) += max6697.o obj-$(CONFIG_SENSORS_MC13783_ADC)+= mc13783-adc.o obj-$(CONFIG_SENSORS_MCP3021) += mcp3021.o +obj-$(CONFIG_SENSORS_NCT6775) += nct6775.o obj-$(CONFIG_SENSORS_NTC_THERMISTOR) += ntc_thermistor.o obj-$(CONFIG_SENSORS_PC87360) += pc87360.o obj-$(CONFIG_SENSORS_PC87427) += pc87427.o diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c index 6119ff8e8c8..df0b6998791 100644 --- a/drivers/hwmon/abituguru.c +++ b/drivers/hwmon/abituguru.c @@ -96,9 +96,12 @@ #define ABIT_UGURU_MAX_TIMEOUTS 2 /* utility macros */ #define ABIT_UGURU_NAME "abituguru" -#define ABIT_UGURU_DEBUG(level, format, arg...) \ - if (level <= verbose) \ - printk(KERN_DEBUG ABIT_UGURU_NAME ": " format , ## arg) +#define ABIT_UGURU_DEBUG(level, format, arg...) \ + do { \ + if (level <= verbose) \ + pr_debug(format , ## arg); \ + } while (0) + /* Macros to help calculate the sysfs_names array length */ /* * sum of strlen of: in??_input\0, in??_{min,max}\0, in??_{min,max}_alarm\0, @@ -1533,7 +1536,7 @@ static int abituguru_resume(struct device *dev) } static SIMPLE_DEV_PM_OPS(abituguru_pm, abituguru_suspend, abituguru_resume); -#define ABIT_UGURU_PM &abituguru_pm +#define ABIT_UGURU_PM (&abituguru_pm) #else #define ABIT_UGURU_PM NULL #endif /* CONFIG_PM */ diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c index 205327d33c4..1d2da31c27c 100644 --- a/drivers/hwmon/abituguru3.c +++ b/drivers/hwmon/abituguru3.c @@ -76,9 +76,11 @@ #define ABIT_UGURU3_SYNCHRONIZE_TIMEOUT 5 /* utility macros */ #define ABIT_UGURU3_NAME "abituguru3" -#define ABIT_UGURU3_DEBUG(format, arg...) \ - if (verbose) \ - printk(KERN_DEBUG ABIT_UGURU3_NAME ": " format , ## arg) +#define ABIT_UGURU3_DEBUG(format, arg...) \ + do { \ + if (verbose) \ + pr_debug(format , ## arg); \ + } while (0) /* Macros to help calculate the sysfs_names array length */ #define ABIT_UGURU3_MAX_NO_SENSORS 26 @@ -1159,7 +1161,7 @@ static int abituguru3_resume(struct device *dev) } static SIMPLE_DEV_PM_OPS(abituguru3_pm, abituguru3_suspend, abituguru3_resume); -#define ABIT_UGURU3_PM &abituguru3_pm +#define ABIT_UGURU3_PM (&abituguru3_pm) #else #define ABIT_UGURU3_PM NULL #endif /* CONFIG_PM */ diff --git a/drivers/hwmon/ad7314.c b/drivers/hwmon/ad7314.c index a57584d28a4..f4f9b219bf1 100644 --- a/drivers/hwmon/ad7314.c +++ b/drivers/hwmon/ad7314.c @@ -116,7 +116,7 @@ static int ad7314_probe(struct spi_device *spi_dev) if (chip == NULL) return -ENOMEM; - dev_set_drvdata(&spi_dev->dev, chip); + spi_set_drvdata(spi_dev, chip); ret = sysfs_create_group(&spi_dev->dev.kobj, &ad7314_group); if (ret < 0) @@ -137,7 +137,7 @@ error_remove_group: static int ad7314_remove(struct spi_device *spi_dev) { - struct ad7314_data *chip = dev_get_drvdata(&spi_dev->dev); + struct ad7314_data *chip = spi_get_drvdata(spi_dev); hwmon_device_unregister(chip->hwmon_dev); sysfs_remove_group(&spi_dev->dev.kobj, &ad7314_group); @@ -166,6 +166,5 @@ static struct spi_driver ad7314_driver = { module_spi_driver(ad7314_driver); MODULE_AUTHOR("Sonic Zhang <sonic.zhang@analog.com>"); -MODULE_DESCRIPTION("Analog Devices AD7314, ADT7301 and ADT7302 digital" - " temperature sensor driver"); +MODULE_DESCRIPTION("Analog Devices AD7314, ADT7301 and ADT7302 digital temperature sensor driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c index 71bcba8abfc..7e76922a4ba 100644 --- a/drivers/hwmon/adm1021.c +++ b/drivers/hwmon/adm1021.c @@ -312,8 +312,7 @@ static int adm1021_detect(struct i2c_client *client, int conv_rate, status, config, man_id, dev_id; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { - pr_debug("adm1021: detect failed, " - "smbus byte data not supported!\n"); + pr_debug("detect failed, smbus byte data not supported!\n"); return -ENODEV; } @@ -324,7 +323,7 @@ static int adm1021_detect(struct i2c_client *client, /* Check unused bits */ if ((status & 0x03) || (config & 0x3F) || (conv_rate & 0xF8)) { - pr_debug("adm1021: detect failed, chip not detected!\n"); + pr_debug("detect failed, chip not detected!\n"); return -ENODEV; } @@ -353,7 +352,7 @@ static int adm1021_detect(struct i2c_client *client, else type_name = "max1617"; - pr_debug("adm1021: Detected chip %s at adapter %d, address 0x%02x.\n", + pr_debug("Detected chip %s at adapter %d, address 0x%02x.\n", type_name, i2c_adapter_id(adapter), client->addr); strlcpy(info->type, type_name, I2C_NAME_SIZE); @@ -368,10 +367,8 @@ static int adm1021_probe(struct i2c_client *client, data = devm_kzalloc(&client->dev, sizeof(struct adm1021_data), GFP_KERNEL); - if (!data) { - pr_debug("adm1021: detect failed, devm_kzalloc failed!\n"); + if (!data) return -ENOMEM; - } i2c_set_clientdata(client, data); data->type = id->driver_data; diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c index ea09046e651..3a6d9ef1c16 100644 --- a/drivers/hwmon/adm1026.c +++ b/drivers/hwmon/adm1026.c @@ -49,14 +49,14 @@ static int gpio_fan[8] = { -1, -1, -1, -1, -1, -1, -1, -1 }; module_param_array(gpio_input, int, NULL, 0); MODULE_PARM_DESC(gpio_input, "List of GPIO pins (0-16) to program as inputs"); module_param_array(gpio_output, int, NULL, 0); -MODULE_PARM_DESC(gpio_output, "List of GPIO pins (0-16) to program as " - "outputs"); +MODULE_PARM_DESC(gpio_output, + "List of GPIO pins (0-16) to program as outputs"); module_param_array(gpio_inverted, int, NULL, 0); -MODULE_PARM_DESC(gpio_inverted, "List of GPIO pins (0-16) to program as " - "inverted"); +MODULE_PARM_DESC(gpio_inverted, + "List of GPIO pins (0-16) to program as inverted"); module_param_array(gpio_normal, int, NULL, 0); -MODULE_PARM_DESC(gpio_normal, "List of GPIO pins (0-16) to program as " - "normal/non-inverted"); +MODULE_PARM_DESC(gpio_normal, + "List of GPIO pins (0-16) to program as normal/non-inverted"); module_param_array(gpio_fan, int, NULL, 0); MODULE_PARM_DESC(gpio_fan, "List of GPIO pins (0-7) to program as fan tachs"); @@ -372,31 +372,31 @@ static void adm1026_init_client(struct i2c_client *client) dev_dbg(&client->dev, "ADM1026_REG_CONFIG1 is: 0x%02x\n", data->config1); if ((data->config1 & CFG1_MONITOR) == 0) { - dev_dbg(&client->dev, "Monitoring not currently " - "enabled.\n"); + dev_dbg(&client->dev, + "Monitoring not currently enabled.\n"); } if (data->config1 & CFG1_INT_ENABLE) { - dev_dbg(&client->dev, "SMBALERT interrupts are " - "enabled.\n"); + dev_dbg(&client->dev, + "SMBALERT interrupts are enabled.\n"); } if (data->config1 & CFG1_AIN8_9) { - dev_dbg(&client->dev, "in8 and in9 enabled. " - "temp3 disabled.\n"); + dev_dbg(&client->dev, + "in8 and in9 enabled. temp3 disabled.\n"); } else { - dev_dbg(&client->dev, "temp3 enabled. in8 and " - "in9 disabled.\n"); + dev_dbg(&client->dev, + "temp3 enabled. in8 and in9 disabled.\n"); } if (data->config1 & CFG1_THERM_HOT) { - dev_dbg(&client->dev, "Automatic THERM, PWM, " - "and temp limits enabled.\n"); + dev_dbg(&client->dev, + "Automatic THERM, PWM, and temp limits enabled.\n"); } if (data->config3 & CFG3_GPIO16_ENABLE) { - dev_dbg(&client->dev, "GPIO16 enabled. THERM " - "pin disabled.\n"); + dev_dbg(&client->dev, + "GPIO16 enabled. THERM pin disabled.\n"); } else { - dev_dbg(&client->dev, "THERM pin enabled. " - "GPIO16 disabled.\n"); + dev_dbg(&client->dev, + "THERM pin enabled. GPIO16 disabled.\n"); } if (data->config3 & CFG3_VREF_250) dev_dbg(&client->dev, "Vref is 2.50 Volts.\n"); @@ -1798,8 +1798,8 @@ static int adm1026_detect(struct i2c_client *client, company = adm1026_read_value(client, ADM1026_REG_COMPANY); verstep = adm1026_read_value(client, ADM1026_REG_VERSTEP); - dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with" - " COMPANY: 0x%02x and VERSTEP: 0x%02x\n", + dev_dbg(&adapter->dev, + "Detecting device at %d,0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n", i2c_adapter_id(client->adapter), client->addr, company, verstep); @@ -1811,11 +1811,12 @@ static int adm1026_detect(struct i2c_client *client, /* Analog Devices ADM1026 */ } else if (company == ADM1026_COMPANY_ANALOG_DEV && (verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { - dev_err(&adapter->dev, "Unrecognized stepping " - "0x%02x. Defaulting to ADM1026.\n", verstep); + dev_err(&adapter->dev, + "Unrecognized stepping 0x%02x. Defaulting to ADM1026.\n", + verstep); } else if ((verstep & 0xf0) == ADM1026_VERSTEP_GENERIC) { - dev_err(&adapter->dev, "Found version/stepping " - "0x%02x. Assuming generic ADM1026.\n", + dev_err(&adapter->dev, + "Found version/stepping 0x%02x. Assuming generic ADM1026.\n", verstep); } else { dev_dbg(&adapter->dev, "Autodetection failed\n"); diff --git a/drivers/hwmon/adm1029.c b/drivers/hwmon/adm1029.c index 97f4718382f..9ee5e066423 100644 --- a/drivers/hwmon/adm1029.c +++ b/drivers/hwmon/adm1029.c @@ -224,8 +224,9 @@ static ssize_t set_fan_div(struct device *dev, break; default: mutex_unlock(&data->update_lock); - dev_err(&client->dev, "fan_div value %ld not " - "supported. Choose one of 1, 2 or 4!\n", val); + dev_err(&client->dev, + "fan_div value %ld not supported. Choose one of 1, 2 or 4!\n", + val); return -EINVAL; } /* Update the value */ @@ -326,8 +327,8 @@ static int adm1029_detect(struct i2c_client *client, * There are no "official" CHIP ID, so actually * we use Major/Minor revision for that */ - pr_info("adm1029: Unknown major revision %x, " - "please let us know\n", chip_id); + pr_info("Unknown major revision %x, please let us know\n", + chip_id); return -ENODEV; } diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c index 2416628e0ab..086d02a9ecd 100644 --- a/drivers/hwmon/adm9240.c +++ b/drivers/hwmon/adm9240.c @@ -351,8 +351,9 @@ static void adm9240_write_fan_div(struct i2c_client *client, int nr, reg &= ~(3 << shift); reg |= (fan_div << shift); i2c_smbus_write_byte_data(client, ADM9240_REG_VID_FAN_DIV, reg); - dev_dbg(&client->dev, "fan%d clock divider changed from %u " - "to %u\n", nr + 1, 1 << old, 1 << fan_div); + dev_dbg(&client->dev, + "fan%d clock divider changed from %u to %u\n", + nr + 1, 1 << old, 1 << fan_div); } /* @@ -699,8 +700,8 @@ static void adm9240_init_client(struct i2c_client *client) /* start measurement cycle */ i2c_smbus_write_byte_data(client, ADM9240_REG_CONFIG, 1); - dev_info(&client->dev, "cold start: config was 0x%02x " - "mode %u\n", conf, mode); + dev_info(&client->dev, + "cold start: config was 0x%02x mode %u\n", conf, mode); } } diff --git a/drivers/hwmon/ads7871.c b/drivers/hwmon/ads7871.c index a79875986f9..3eff73b6220 100644 --- a/drivers/hwmon/ads7871.c +++ b/drivers/hwmon/ads7871.c @@ -40,25 +40,25 @@ * the instruction byte */ /*Instruction Bit masks*/ -#define INST_MODE_bm (1<<7) -#define INST_READ_bm (1<<6) -#define INST_16BIT_bm (1<<5) +#define INST_MODE_BM (1 << 7) +#define INST_READ_BM (1 << 6) +#define INST_16BIT_BM (1 << 5) /*From figure 18 in the datasheet*/ /*bit masks for Rev/Oscillator Control Register*/ -#define MUX_CNV_bv 7 -#define MUX_CNV_bm (1<<MUX_CNV_bv) -#define MUX_M3_bm (1<<3) /*M3 selects single ended*/ -#define MUX_G_bv 4 /*allows for reg = (gain << MUX_G_bv) | ...*/ +#define MUX_CNV_BV 7 +#define MUX_CNV_BM (1 << MUX_CNV_BV) +#define MUX_M3_BM (1 << 3) /*M3 selects single ended*/ +#define MUX_G_BV 4 /*allows for reg = (gain << MUX_G_BV) | ...*/ /*From figure 18 in the datasheet*/ /*bit masks for Rev/Oscillator Control Register*/ -#define OSC_OSCR_bm (1<<5) -#define OSC_OSCE_bm (1<<4) -#define OSC_REFE_bm (1<<3) -#define OSC_BUFE_bm (1<<2) -#define OSC_R2V_bm (1<<1) -#define OSC_RBG_bm (1<<0) +#define OSC_OSCR_BM (1 << 5) +#define OSC_OSCE_BM (1 << 4) +#define OSC_REFE_BM (1 << 3) +#define OSC_BUFE_BM (1 << 2) +#define OSC_R2V_BM (1 << 1) +#define OSC_RBG_BM (1 << 0) #include <linux/module.h> #include <linux/init.h> @@ -79,7 +79,7 @@ struct ads7871_data { static int ads7871_read_reg8(struct spi_device *spi, int reg) { int ret; - reg = reg | INST_READ_bm; + reg = reg | INST_READ_BM; ret = spi_w8r8(spi, reg); return ret; } @@ -87,7 +87,7 @@ static int ads7871_read_reg8(struct spi_device *spi, int reg) static int ads7871_read_reg16(struct spi_device *spi, int reg) { int ret; - reg = reg | INST_READ_bm | INST_16BIT_bm; + reg = reg | INST_READ_BM | INST_16BIT_BM; ret = spi_w8r16(spi, reg); return ret; } @@ -111,13 +111,13 @@ static ssize_t show_voltage(struct device *dev, * TODO: add support for conversions * other than single ended with a gain of 1 */ - /*MUX_M3_bm forces single ended*/ + /*MUX_M3_BM forces single ended*/ /*This is also where the gain of the PGA would be set*/ ads7871_write_reg8(spi, REG_GAIN_MUX, - (MUX_CNV_bm | MUX_M3_bm | channel)); + (MUX_CNV_BM | MUX_M3_BM | channel)); ret = ads7871_read_reg8(spi, REG_GAIN_MUX); - mux_cnv = ((ret & MUX_CNV_bm)>>MUX_CNV_bv); + mux_cnv = ((ret & MUX_CNV_BM) >> MUX_CNV_BV); /* * on 400MHz arm9 platform the conversion * is already done when we do this test @@ -125,14 +125,14 @@ static ssize_t show_voltage(struct device *dev, while ((i < 2) && mux_cnv) { i++; ret = ads7871_read_reg8(spi, REG_GAIN_MUX); - mux_cnv = ((ret & MUX_CNV_bm)>>MUX_CNV_bv); + mux_cnv = ((ret & MUX_CNV_BM) >> MUX_CNV_BV); msleep_interruptible(1); } if (mux_cnv == 0) { val = ads7871_read_reg16(spi, REG_LS_BYTE); /*result in volts*10000 = (val/8192)*2.5*10000*/ - val = ((val>>2) * 25000) / 8192; + val = ((val >> 2) * 25000) / 8192; return sprintf(buf, "%d\n", val); } else { return -1; @@ -189,7 +189,7 @@ static int ads7871_probe(struct spi_device *spi) ads7871_write_reg8(spi, REG_SER_CONTROL, 0); ads7871_write_reg8(spi, REG_AD_CONTROL, 0); - val = (OSC_OSCR_bm | OSC_OSCE_bm | OSC_REFE_bm | OSC_BUFE_bm); + val = (OSC_OSCR_BM | OSC_OSCE_BM | OSC_REFE_BM | OSC_BUFE_BM); ads7871_write_reg8(spi, REG_OSC_CONTROL, val); ret = ads7871_read_reg8(spi, REG_OSC_CONTROL); diff --git a/drivers/hwmon/adt7310.c b/drivers/hwmon/adt7310.c new file mode 100644 index 00000000000..da5f0789fb9 --- /dev/null +++ b/drivers/hwmon/adt7310.c @@ -0,0 +1,123 @@ +/* + * ADT7310/ADT7310 digital temperature sensor driver + * + * Copyright 2012-2013 Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> + * + * Licensed under the GPL-2 or later. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/spi/spi.h> +#include <asm/unaligned.h> + +#include "adt7x10.h" + +#define ADT7310_STATUS 0 +#define ADT7310_CONFIG 1 +#define ADT7310_TEMPERATURE 2 +#define ADT7310_ID 3 +#define ADT7310_T_CRIT 4 +#define ADT7310_T_HYST 5 +#define ADT7310_T_ALARM_HIGH 6 +#define ADT7310_T_ALARM_LOW 7 + +static const u8 adt7310_reg_table[] = { + [ADT7X10_TEMPERATURE] = ADT7310_TEMPERATURE, + [ADT7X10_STATUS] = ADT7310_STATUS, + [ADT7X10_CONFIG] = ADT7310_CONFIG, + [ADT7X10_T_ALARM_HIGH] = ADT7310_T_ALARM_HIGH, + [ADT7X10_T_ALARM_LOW] = ADT7310_T_ALARM_LOW, + [ADT7X10_T_CRIT] = ADT7310_T_CRIT, + [ADT7X10_T_HYST] = ADT7310_T_HYST, + [ADT7X10_ID] = ADT7310_ID, +}; + +#define ADT7310_CMD_REG_OFFSET 3 +#define ADT7310_CMD_READ 0x40 + +#define AD7310_COMMAND(reg) (adt7310_reg_table[(reg)] << ADT7310_CMD_REG_OFFSET) + +static int adt7310_spi_read_word(struct device *dev, u8 reg) +{ + struct spi_device *spi = to_spi_device(dev); + int ret; + + ret = spi_w8r16(spi, AD7310_COMMAND(reg) | ADT7310_CMD_READ); + if (ret < 0) + return ret; + + return be16_to_cpu((__force __be16)ret); +} + +static int adt7310_spi_write_word(struct device *dev, u8 reg, u16 data) +{ + struct spi_device *spi = to_spi_device(dev); + u8 buf[3]; + + buf[0] = AD7310_COMMAND(reg); + put_unaligned_be16(data, &buf[1]); + + return spi_write(spi, buf, sizeof(buf)); +} + +static int adt7310_spi_read_byte(struct device *dev, u8 reg) +{ + struct spi_device *spi = to_spi_device(dev); + + return spi_w8r8(spi, AD7310_COMMAND(reg) | ADT7310_CMD_READ); +} + +static int adt7310_spi_write_byte(struct device *dev, u8 reg, + u8 data) +{ + struct spi_device *spi = to_spi_device(dev); + u8 buf[2]; + + buf[0] = AD7310_COMMAND(reg); + buf[1] = data; + + return spi_write(spi, buf, sizeof(buf)); +} + +static const struct adt7x10_ops adt7310_spi_ops = { + .read_word = adt7310_spi_read_word, + .write_word = adt7310_spi_write_word, + .read_byte = adt7310_spi_read_byte, + .write_byte = adt7310_spi_write_byte, +}; + +static int adt7310_spi_probe(struct spi_device *spi) +{ + return adt7x10_probe(&spi->dev, spi_get_device_id(spi)->name, spi->irq, + &adt7310_spi_ops); +} + +static int adt7310_spi_remove(struct spi_device *spi) +{ + return adt7x10_remove(&spi->dev, spi->irq); +} + +static const struct spi_device_id adt7310_id[] = { + { "adt7310", 0 }, + { "adt7320", 0 }, + {} +}; +MODULE_DEVICE_TABLE(spi, adt7310_id); + +static struct spi_driver adt7310_driver = { + .driver = { + .name = "adt7310", + .owner = THIS_MODULE, + .pm = ADT7X10_DEV_PM_OPS, + }, + .probe = adt7310_spi_probe, + .remove = adt7310_spi_remove, + .id_table = adt7310_id, +}; +module_spi_driver(adt7310_driver); + +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); +MODULE_DESCRIPTION("ADT7310/ADT7320 driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/adt7410.c b/drivers/hwmon/adt7410.c index 99a7290da0a..0dc066a939b 100644 --- a/drivers/hwmon/adt7410.c +++ b/drivers/hwmon/adt7410.c @@ -1,460 +1,80 @@ /* - * adt7410.c - Part of lm_sensors, Linux kernel modules for hardware - * monitoring - * This driver handles the ADT7410 and compatible digital temperature sensors. - * Hartmut Knaack <knaack.h@gmx.de> 2012-07-22 - * based on lm75.c by Frodo Looijaard <frodol@dds.nl> - * and adt7410.c from iio-staging by Sonic Zhang <sonic.zhang@analog.com> + * ADT7410/ADT7420 digital temperature sensor driver * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. + * Copyright 2012-2013 Analog Devices Inc. + * Author: Lars-Peter Clausen <lars@metafoo.de> * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * Licensed under the GPL-2 or later. */ #include <linux/module.h> #include <linux/init.h> -#include <linux/slab.h> -#include <linux/jiffies.h> #include <linux/i2c.h> -#include <linux/hwmon.h> -#include <linux/hwmon-sysfs.h> -#include <linux/err.h> -#include <linux/mutex.h> -#include <linux/delay.h> - -/* - * ADT7410 registers definition - */ - -#define ADT7410_TEMPERATURE 0 -#define ADT7410_STATUS 2 -#define ADT7410_CONFIG 3 -#define ADT7410_T_ALARM_HIGH 4 -#define ADT7410_T_ALARM_LOW 6 -#define ADT7410_T_CRIT 8 -#define ADT7410_T_HYST 0xA - -/* - * ADT7410 status - */ -#define ADT7410_STAT_T_LOW (1 << 4) -#define ADT7410_STAT_T_HIGH (1 << 5) -#define ADT7410_STAT_T_CRIT (1 << 6) -#define ADT7410_STAT_NOT_RDY (1 << 7) - -/* - * ADT7410 config - */ -#define ADT7410_FAULT_QUEUE_MASK (1 << 0 | 1 << 1) -#define ADT7410_CT_POLARITY (1 << 2) -#define ADT7410_INT_POLARITY (1 << 3) -#define ADT7410_EVENT_MODE (1 << 4) -#define ADT7410_MODE_MASK (1 << 5 | 1 << 6) -#define ADT7410_FULL (0 << 5 | 0 << 6) -#define ADT7410_PD (1 << 5 | 1 << 6) -#define ADT7410_RESOLUTION (1 << 7) - -/* - * ADT7410 masks - */ -#define ADT7410_T13_VALUE_MASK 0xFFF8 -#define ADT7410_T_HYST_MASK 0xF - -/* straight from the datasheet */ -#define ADT7410_TEMP_MIN (-55000) -#define ADT7410_TEMP_MAX 150000 - -enum adt7410_type { /* keep sorted in alphabetical order */ - adt7410, -}; - -static const u8 ADT7410_REG_TEMP[4] = { - ADT7410_TEMPERATURE, /* input */ - ADT7410_T_ALARM_HIGH, /* high */ - ADT7410_T_ALARM_LOW, /* low */ - ADT7410_T_CRIT, /* critical */ -}; - -/* Each client has this additional data */ -struct adt7410_data { - struct device *hwmon_dev; - struct mutex update_lock; - u8 config; - u8 oldconfig; - bool valid; /* true if registers valid */ - unsigned long last_updated; /* In jiffies */ - s16 temp[4]; /* Register values, - 0 = input - 1 = high - 2 = low - 3 = critical */ - u8 hyst; /* hysteresis offset */ -}; - -/* - * adt7410 register access by I2C - */ -static int adt7410_temp_ready(struct i2c_client *client) -{ - int i, status; - - for (i = 0; i < 6; i++) { - status = i2c_smbus_read_byte_data(client, ADT7410_STATUS); - if (status < 0) - return status; - if (!(status & ADT7410_STAT_NOT_RDY)) - return 0; - msleep(60); - } - return -ETIMEDOUT; -} - -static struct adt7410_data *adt7410_update_device(struct device *dev) -{ - struct i2c_client *client = to_i2c_client(dev); - struct adt7410_data *data = i2c_get_clientdata(client); - struct adt7410_data *ret = data; - mutex_lock(&data->update_lock); - - if (time_after(jiffies, data->last_updated + HZ + HZ / 2) - || !data->valid) { - int i, status; - dev_dbg(&client->dev, "Starting update\n"); +#include "adt7x10.h" - status = adt7410_temp_ready(client); /* check for new value */ - if (unlikely(status)) { - ret = ERR_PTR(status); - goto abort; - } - for (i = 0; i < ARRAY_SIZE(data->temp); i++) { - status = i2c_smbus_read_word_swapped(client, - ADT7410_REG_TEMP[i]); - if (unlikely(status < 0)) { - dev_dbg(dev, - "Failed to read value: reg %d, error %d\n", - ADT7410_REG_TEMP[i], status); - ret = ERR_PTR(status); - goto abort; - } - data->temp[i] = status; - } - status = i2c_smbus_read_byte_data(client, ADT7410_T_HYST); - if (unlikely(status < 0)) { - dev_dbg(dev, - "Failed to read value: reg %d, error %d\n", - ADT7410_T_HYST, status); - ret = ERR_PTR(status); - goto abort; - } - data->hyst = status; - data->last_updated = jiffies; - data->valid = true; - } - -abort: - mutex_unlock(&data->update_lock); - return ret; -} - -static s16 ADT7410_TEMP_TO_REG(long temp) +static int adt7410_i2c_read_word(struct device *dev, u8 reg) { - return DIV_ROUND_CLOSEST(clamp_val(temp, ADT7410_TEMP_MIN, - ADT7410_TEMP_MAX) * 128, 1000); + return i2c_smbus_read_word_swapped(to_i2c_client(dev), reg); } -static int ADT7410_REG_TO_TEMP(struct adt7410_data *data, s16 reg) +static int adt7410_i2c_write_word(struct device *dev, u8 reg, u16 data) { - /* in 13 bit mode, bits 0-2 are status flags - mask them out */ - if (!(data->config & ADT7410_RESOLUTION)) - reg &= ADT7410_T13_VALUE_MASK; - /* - * temperature is stored in twos complement format, in steps of - * 1/128°C - */ - return DIV_ROUND_CLOSEST(reg * 1000, 128); + return i2c_smbus_write_word_swapped(to_i2c_client(dev), reg, data); } -/*-----------------------------------------------------------------------*/ - -/* sysfs attributes for hwmon */ - -static ssize_t adt7410_show_temp(struct device *dev, - struct device_attribute *da, char *buf) +static int adt7410_i2c_read_byte(struct device *dev, u8 reg) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(da); - struct adt7410_data *data = adt7410_update_device(dev); - - if (IS_ERR(data)) - return PTR_ERR(data); - - return sprintf(buf, "%d\n", ADT7410_REG_TO_TEMP(data, - data->temp[attr->index])); + return i2c_smbus_read_byte_data(to_i2c_client(dev), reg); } -static ssize_t adt7410_set_temp(struct device *dev, - struct device_attribute *da, - const char *buf, size_t count) +static int adt7410_i2c_write_byte(struct device *dev, u8 reg, u8 data) { - struct sensor_device_attribute *attr = to_sensor_dev_attr(da); - struct i2c_client *client = to_i2c_client(dev); - struct adt7410_data *data = i2c_get_clientdata(client); - int nr = attr->index; - long temp; - int ret; - - ret = kstrtol(buf, 10, &temp); - if (ret) - return ret; - - mutex_lock(&data->update_lock); - data->temp[nr] = ADT7410_TEMP_TO_REG(temp); - ret = i2c_smbus_write_word_swapped(client, ADT7410_REG_TEMP[nr], - data->temp[nr]); - if (ret) - count = ret; - mutex_unlock(&data->update_lock); - return count; + return i2c_smbus_write_byte_data(to_i2c_client(dev), reg, data); } -static ssize_t adt7410_show_t_hyst(struct device *dev, - struct device_attribute *da, - char *buf) -{ - struct sensor_device_attribute *attr = to_sensor_dev_attr(da); - struct adt7410_data *data; - int nr = attr->index; - int hyst; - - data = adt7410_update_device(dev); - if (IS_ERR(data)) - return PTR_ERR(data); - hyst = (data->hyst & ADT7410_T_HYST_MASK) * 1000; - - /* - * hysteresis is stored as a 4 bit offset in the device, convert it - * to an absolute value - */ - if (nr == 2) /* min has positive offset, others have negative */ - hyst = -hyst; - return sprintf(buf, "%d\n", - ADT7410_REG_TO_TEMP(data, data->temp[nr]) - hyst); -} - -static ssize_t adt7410_set_t_hyst(struct device *dev, - struct device_attribute *da, - const char *buf, size_t count) -{ - struct i2c_client *client = to_i2c_client(dev); - struct adt7410_data *data = i2c_get_clientdata(client); - int limit, ret; - long hyst; - - ret = kstrtol(buf, 10, &hyst); - if (ret) - return ret; - /* convert absolute hysteresis value to a 4 bit delta value */ - limit = ADT7410_REG_TO_TEMP(data, data->temp[1]); - hyst = clamp_val(hyst, ADT7410_TEMP_MIN, ADT7410_TEMP_MAX); - data->hyst = clamp_val(DIV_ROUND_CLOSEST(limit - hyst, 1000), 0, - ADT7410_T_HYST_MASK); - ret = i2c_smbus_write_byte_data(client, ADT7410_T_HYST, data->hyst); - if (ret) - return ret; - - return count; -} - -static ssize_t adt7410_show_alarm(struct device *dev, - struct device_attribute *da, - char *buf) -{ - struct i2c_client *client = to_i2c_client(dev); - struct sensor_device_attribute *attr = to_sensor_dev_attr(da); - int ret; - - ret = i2c_smbus_read_byte_data(client, ADT7410_STATUS); - if (ret < 0) - return ret; - - return sprintf(buf, "%d\n", !!(ret & attr->index)); -} - -static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, adt7410_show_temp, NULL, 0); -static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, - adt7410_show_temp, adt7410_set_temp, 1); -static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, - adt7410_show_temp, adt7410_set_temp, 2); -static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, - adt7410_show_temp, adt7410_set_temp, 3); -static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, - adt7410_show_t_hyst, adt7410_set_t_hyst, 1); -static SENSOR_DEVICE_ATTR(temp1_min_hyst, S_IRUGO, - adt7410_show_t_hyst, NULL, 2); -static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, - adt7410_show_t_hyst, NULL, 3); -static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, adt7410_show_alarm, - NULL, ADT7410_STAT_T_LOW); -static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, adt7410_show_alarm, - NULL, ADT7410_STAT_T_HIGH); -static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, adt7410_show_alarm, - NULL, ADT7410_STAT_T_CRIT); - -static struct attribute *adt7410_attributes[] = { - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp1_min.dev_attr.attr, - &sensor_dev_attr_temp1_crit.dev_attr.attr, - &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, - &sensor_dev_attr_temp1_min_hyst.dev_attr.attr, - &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, - &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, - NULL +static const struct adt7x10_ops adt7410_i2c_ops = { + .read_word = adt7410_i2c_read_word, + .write_word = adt7410_i2c_write_word, + .read_byte = adt7410_i2c_read_byte, + .write_byte = adt7410_i2c_write_byte, }; -static const struct attribute_group adt7410_group = { - .attrs = adt7410_attributes, -}; - -/*-----------------------------------------------------------------------*/ - -/* device probe and removal */ - -static int adt7410_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static int adt7410_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) { - struct adt7410_data *data; - int ret; - if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA)) return -ENODEV; - data = devm_kzalloc(&client->dev, sizeof(struct adt7410_data), - GFP_KERNEL); - if (!data) - return -ENOMEM; - - i2c_set_clientdata(client, data); - mutex_init(&data->update_lock); - - /* configure as specified */ - ret = i2c_smbus_read_byte_data(client, ADT7410_CONFIG); - if (ret < 0) { - dev_dbg(&client->dev, "Can't read config? %d\n", ret); - return ret; - } - data->oldconfig = ret; - /* - * Set to 16 bit resolution, continous conversion and comparator mode. - */ - ret &= ~ADT7410_MODE_MASK; - data->config = ret | ADT7410_FULL | ADT7410_RESOLUTION | - ADT7410_EVENT_MODE; - if (data->config != data->oldconfig) { - ret = i2c_smbus_write_byte_data(client, ADT7410_CONFIG, - data->config); - if (ret) - return ret; - } - dev_dbg(&client->dev, "Config %02x\n", data->config); - - /* Register sysfs hooks */ - ret = sysfs_create_group(&client->dev.kobj, &adt7410_group); - if (ret) - goto exit_restore; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - ret = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - dev_info(&client->dev, "sensor '%s'\n", client->name); - - return 0; - -exit_remove: - sysfs_remove_group(&client->dev.kobj, &adt7410_group); -exit_restore: - i2c_smbus_write_byte_data(client, ADT7410_CONFIG, data->oldconfig); - return ret; + return adt7x10_probe(&client->dev, NULL, client->irq, &adt7410_i2c_ops); } -static int adt7410_remove(struct i2c_client *client) +static int adt7410_i2c_remove(struct i2c_client *client) { - struct adt7410_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &adt7410_group); - if (data->oldconfig != data->config) - i2c_smbus_write_byte_data(client, ADT7410_CONFIG, - data->oldconfig); - return 0; + return adt7x10_remove(&client->dev, client->irq); } static const struct i2c_device_id adt7410_ids[] = { - { "adt7410", adt7410, }, - { "adt7420", adt7410, }, - { /* LIST END */ } + { "adt7410", 0 }, + { "adt7420", 0 }, + {} }; MODULE_DEVICE_TABLE(i2c, adt7410_ids); -#ifdef CONFIG_PM_SLEEP -static int adt7410_suspend(struct device *dev) -{ - int ret; - struct i2c_client *client = to_i2c_client(dev); - struct adt7410_data *data = i2c_get_clientdata(client); - - ret = i2c_smbus_write_byte_data(client, ADT7410_CONFIG, - data->config | ADT7410_PD); - return ret; -} - -static int adt7410_resume(struct device *dev) -{ - int ret; - struct i2c_client *client = to_i2c_client(dev); - struct adt7410_data *data = i2c_get_clientdata(client); - - ret = i2c_smbus_write_byte_data(client, ADT7410_CONFIG, data->config); - return ret; -} - -static SIMPLE_DEV_PM_OPS(adt7410_dev_pm_ops, adt7410_suspend, adt7410_resume); - -#define ADT7410_DEV_PM_OPS (&adt7410_dev_pm_ops) -#else -#define ADT7410_DEV_PM_OPS NULL -#endif /* CONFIG_PM */ - static struct i2c_driver adt7410_driver = { .class = I2C_CLASS_HWMON, .driver = { .name = "adt7410", - .pm = ADT7410_DEV_PM_OPS, + .pm = ADT7X10_DEV_PM_OPS, }, - .probe = adt7410_probe, - .remove = adt7410_remove, + .probe = adt7410_i2c_probe, + .remove = adt7410_i2c_remove, .id_table = adt7410_ids, .address_list = I2C_ADDRS(0x48, 0x49, 0x4a, 0x4b), }; - module_i2c_driver(adt7410_driver); -MODULE_AUTHOR("Hartmut Knaack"); -MODULE_DESCRIPTION("ADT7410/ADT7420 driver"); +MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); +MODULE_DESCRIPTION("ADT7410/AD7420 driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/adt7411.c b/drivers/hwmon/adt7411.c index 34ff03abb50..d9299dee37d 100644 --- a/drivers/hwmon/adt7411.c +++ b/drivers/hwmon/adt7411.c @@ -259,15 +259,17 @@ static int adt7411_detect(struct i2c_client *client, val = i2c_smbus_read_byte_data(client, ADT7411_REG_MANUFACTURER_ID); if (val < 0 || val != ADT7411_MANUFACTURER_ID) { - dev_dbg(&client->dev, "Wrong manufacturer ID. Got %d, " - "expected %d\n", val, ADT7411_MANUFACTURER_ID); + dev_dbg(&client->dev, + "Wrong manufacturer ID. Got %d, expected %d\n", + val, ADT7411_MANUFACTURER_ID); return -ENODEV; } val = i2c_smbus_read_byte_data(client, ADT7411_REG_DEVICE_ID); if (val < 0 || val != ADT7411_DEVICE_ID) { - dev_dbg(&client->dev, "Wrong device ID. Got %d, " - "expected %d\n", val, ADT7411_DEVICE_ID); + dev_dbg(&client->dev, + "Wrong device ID. Got %d, expected %d\n", + val, ADT7411_DEVICE_ID); return -ENODEV; } diff --git a/drivers/hwmon/adt7x10.c b/drivers/hwmon/adt7x10.c new file mode 100644 index 00000000000..98141f48316 --- /dev/null +++ b/drivers/hwmon/adt7x10.c @@ -0,0 +1,511 @@ +/* + * adt7x10.c - Part of lm_sensors, Linux kernel modules for hardware + * monitoring + * This driver handles the ADT7410 and compatible digital temperature sensors. + * Hartmut Knaack <knaack.h@gmx.de> 2012-07-22 + * based on lm75.c by Frodo Looijaard <frodol@dds.nl> + * and adt7410.c from iio-staging by Sonic Zhang <sonic.zhang@analog.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/jiffies.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/err.h> +#include <linux/mutex.h> +#include <linux/delay.h> +#include <linux/interrupt.h> + +#include "adt7x10.h" + +/* + * ADT7X10 status + */ +#define ADT7X10_STAT_T_LOW (1 << 4) +#define ADT7X10_STAT_T_HIGH (1 << 5) +#define ADT7X10_STAT_T_CRIT (1 << 6) +#define ADT7X10_STAT_NOT_RDY (1 << 7) + +/* + * ADT7X10 config + */ +#define ADT7X10_FAULT_QUEUE_MASK (1 << 0 | 1 << 1) +#define ADT7X10_CT_POLARITY (1 << 2) +#define ADT7X10_INT_POLARITY (1 << 3) +#define ADT7X10_EVENT_MODE (1 << 4) +#define ADT7X10_MODE_MASK (1 << 5 | 1 << 6) +#define ADT7X10_FULL (0 << 5 | 0 << 6) +#define ADT7X10_PD (1 << 5 | 1 << 6) +#define ADT7X10_RESOLUTION (1 << 7) + +/* + * ADT7X10 masks + */ +#define ADT7X10_T13_VALUE_MASK 0xFFF8 +#define ADT7X10_T_HYST_MASK 0xF + +/* straight from the datasheet */ +#define ADT7X10_TEMP_MIN (-55000) +#define ADT7X10_TEMP_MAX 150000 + +/* Each client has this additional data */ +struct adt7x10_data { + const struct adt7x10_ops *ops; + const char *name; + struct device *hwmon_dev; + struct mutex update_lock; + u8 config; + u8 oldconfig; + bool valid; /* true if registers valid */ + unsigned long last_updated; /* In jiffies */ + s16 temp[4]; /* Register values, + 0 = input + 1 = high + 2 = low + 3 = critical */ + u8 hyst; /* hysteresis offset */ +}; + +static int adt7x10_read_byte(struct device *dev, u8 reg) +{ + struct adt7x10_data *d = dev_get_drvdata(dev); + return d->ops->read_byte(dev, reg); +} + +static int adt7x10_write_byte(struct device *dev, u8 reg, u8 data) +{ + struct adt7x10_data *d = dev_get_drvdata(dev); + return d->ops->write_byte(dev, reg, data); +} + +static int adt7x10_read_word(struct device *dev, u8 reg) +{ + struct adt7x10_data *d = dev_get_drvdata(dev); + return d->ops->read_word(dev, reg); +} + +static int adt7x10_write_word(struct device *dev, u8 reg, u16 data) +{ + struct adt7x10_data *d = dev_get_drvdata(dev); + return d->ops->write_word(dev, reg, data); +} + +static const u8 ADT7X10_REG_TEMP[4] = { + ADT7X10_TEMPERATURE, /* input */ + ADT7X10_T_ALARM_HIGH, /* high */ + ADT7X10_T_ALARM_LOW, /* low */ + ADT7X10_T_CRIT, /* critical */ +}; + +static irqreturn_t adt7x10_irq_handler(int irq, void *private) +{ + struct device *dev = private; + int status; + + status = adt7x10_read_byte(dev, ADT7X10_STATUS); + if (status < 0) + return IRQ_HANDLED; + + if (status & ADT7X10_STAT_T_HIGH) + sysfs_notify(&dev->kobj, NULL, "temp1_max_alarm"); + if (status & ADT7X10_STAT_T_LOW) + sysfs_notify(&dev->kobj, NULL, "temp1_min_alarm"); + if (status & ADT7X10_STAT_T_CRIT) + sysfs_notify(&dev->kobj, NULL, "temp1_crit_alarm"); + + return IRQ_HANDLED; +} + +static int adt7x10_temp_ready(struct device *dev) +{ + int i, status; + + for (i = 0; i < 6; i++) { + status = adt7x10_read_byte(dev, ADT7X10_STATUS); + if (status < 0) + return status; + if (!(status & ADT7X10_STAT_NOT_RDY)) + return 0; + msleep(60); + } + return -ETIMEDOUT; +} + +static int adt7x10_update_temp(struct device *dev) +{ + struct adt7x10_data *data = dev_get_drvdata(dev); + int ret = 0; + + mutex_lock(&data->update_lock); + + if (time_after(jiffies, data->last_updated + HZ + HZ / 2) + || !data->valid) { + int temp; + + dev_dbg(dev, "Starting update\n"); + + ret = adt7x10_temp_ready(dev); /* check for new value */ + if (ret) + goto abort; + + temp = adt7x10_read_word(dev, ADT7X10_REG_TEMP[0]); + if (temp < 0) { + ret = temp; + dev_dbg(dev, "Failed to read value: reg %d, error %d\n", + ADT7X10_REG_TEMP[0], ret); + goto abort; + } + data->temp[0] = temp; + data->last_updated = jiffies; + data->valid = true; + } + +abort: + mutex_unlock(&data->update_lock); + return ret; +} + +static int adt7x10_fill_cache(struct device *dev) +{ + struct adt7x10_data *data = dev_get_drvdata(dev); + int ret; + int i; + + for (i = 1; i < ARRAY_SIZE(data->temp); i++) { + ret = adt7x10_read_word(dev, ADT7X10_REG_TEMP[i]); + if (ret < 0) { + dev_dbg(dev, "Failed to read value: reg %d, error %d\n", + ADT7X10_REG_TEMP[i], ret); + return ret; + } + data->temp[i] = ret; + } + + ret = adt7x10_read_byte(dev, ADT7X10_T_HYST); + if (ret < 0) { + dev_dbg(dev, "Failed to read value: reg %d, error %d\n", + ADT7X10_T_HYST, ret); + return ret; + } + data->hyst = ret; + + return 0; +} + +static s16 ADT7X10_TEMP_TO_REG(long temp) +{ + return DIV_ROUND_CLOSEST(clamp_val(temp, ADT7X10_TEMP_MIN, + ADT7X10_TEMP_MAX) * 128, 1000); +} + +static int ADT7X10_REG_TO_TEMP(struct adt7x10_data *data, s16 reg) +{ + /* in 13 bit mode, bits 0-2 are status flags - mask them out */ + if (!(data->config & ADT7X10_RESOLUTION)) + reg &= ADT7X10_T13_VALUE_MASK; + /* + * temperature is stored in twos complement format, in steps of + * 1/128°C + */ + return DIV_ROUND_CLOSEST(reg * 1000, 128); +} + +/*-----------------------------------------------------------------------*/ + +/* sysfs attributes for hwmon */ + +static ssize_t adt7x10_show_temp(struct device *dev, + struct device_attribute *da, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct adt7x10_data *data = dev_get_drvdata(dev); + + + if (attr->index == 0) { + int ret; + + ret = adt7x10_update_temp(dev); + if (ret) + return ret; + } + + return sprintf(buf, "%d\n", ADT7X10_REG_TO_TEMP(data, + data->temp[attr->index])); +} + +static ssize_t adt7x10_set_temp(struct device *dev, + struct device_attribute *da, + const char *buf, size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct adt7x10_data *data = dev_get_drvdata(dev); + int nr = attr->index; + long temp; + int ret; + + ret = kstrtol(buf, 10, &temp); + if (ret) + return ret; + + mutex_lock(&data->update_lock); + data->temp[nr] = ADT7X10_TEMP_TO_REG(temp); + ret = adt7x10_write_word(dev, ADT7X10_REG_TEMP[nr], data->temp[nr]); + if (ret) + count = ret; + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t adt7x10_show_t_hyst(struct device *dev, + struct device_attribute *da, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + struct adt7x10_data *data = dev_get_drvdata(dev); + int nr = attr->index; + int hyst; + + hyst = (data->hyst & ADT7X10_T_HYST_MASK) * 1000; + + /* + * hysteresis is stored as a 4 bit offset in the device, convert it + * to an absolute value + */ + if (nr == 2) /* min has positive offset, others have negative */ + hyst = -hyst; + return sprintf(buf, "%d\n", + ADT7X10_REG_TO_TEMP(data, data->temp[nr]) - hyst); +} + +static ssize_t adt7x10_set_t_hyst(struct device *dev, + struct device_attribute *da, + const char *buf, size_t count) +{ + struct adt7x10_data *data = dev_get_drvdata(dev); + int limit, ret; + long hyst; + + ret = kstrtol(buf, 10, &hyst); + if (ret) + return ret; + /* convert absolute hysteresis value to a 4 bit delta value */ + limit = ADT7X10_REG_TO_TEMP(data, data->temp[1]); + hyst = clamp_val(hyst, ADT7X10_TEMP_MIN, ADT7X10_TEMP_MAX); + data->hyst = clamp_val(DIV_ROUND_CLOSEST(limit - hyst, 1000), + 0, ADT7X10_T_HYST_MASK); + ret = adt7x10_write_byte(dev, ADT7X10_T_HYST, data->hyst); + if (ret) + return ret; + + return count; +} + +static ssize_t adt7x10_show_alarm(struct device *dev, + struct device_attribute *da, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); + int ret; + + ret = adt7x10_read_byte(dev, ADT7X10_STATUS); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", !!(ret & attr->index)); +} + +static ssize_t adt7x10_show_name(struct device *dev, + struct device_attribute *da, + char *buf) +{ + struct adt7x10_data *data = dev_get_drvdata(dev); + + return sprintf(buf, "%s\n", data->name); +} + +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, adt7x10_show_temp, NULL, 0); +static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, + adt7x10_show_temp, adt7x10_set_temp, 1); +static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, + adt7x10_show_temp, adt7x10_set_temp, 2); +static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, + adt7x10_show_temp, adt7x10_set_temp, 3); +static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, + adt7x10_show_t_hyst, adt7x10_set_t_hyst, 1); +static SENSOR_DEVICE_ATTR(temp1_min_hyst, S_IRUGO, + adt7x10_show_t_hyst, NULL, 2); +static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, + adt7x10_show_t_hyst, NULL, 3); +static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, adt7x10_show_alarm, + NULL, ADT7X10_STAT_T_LOW); +static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, adt7x10_show_alarm, + NULL, ADT7X10_STAT_T_HIGH); +static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, adt7x10_show_alarm, + NULL, ADT7X10_STAT_T_CRIT); +static DEVICE_ATTR(name, S_IRUGO, adt7x10_show_name, NULL); + +static struct attribute *adt7x10_attributes[] = { + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + &sensor_dev_attr_temp1_min.dev_attr.attr, + &sensor_dev_attr_temp1_crit.dev_attr.attr, + &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, + &sensor_dev_attr_temp1_min_hyst.dev_attr.attr, + &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, + &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, + NULL +}; + +static const struct attribute_group adt7x10_group = { + .attrs = adt7x10_attributes, +}; + +int adt7x10_probe(struct device *dev, const char *name, int irq, + const struct adt7x10_ops *ops) +{ + struct adt7x10_data *data; + int ret; + + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->ops = ops; + data->name = name; + + dev_set_drvdata(dev, data); + mutex_init(&data->update_lock); + + /* configure as specified */ + ret = adt7x10_read_byte(dev, ADT7X10_CONFIG); + if (ret < 0) { + dev_dbg(dev, "Can't read config? %d\n", ret); + return ret; + } + data->oldconfig = ret; + + /* + * Set to 16 bit resolution, continous conversion and comparator mode. + */ + data->config = data->oldconfig; + data->config &= ~(ADT7X10_MODE_MASK | ADT7X10_CT_POLARITY | + ADT7X10_INT_POLARITY); + data->config |= ADT7X10_FULL | ADT7X10_RESOLUTION | ADT7X10_EVENT_MODE; + + if (data->config != data->oldconfig) { + ret = adt7x10_write_byte(dev, ADT7X10_CONFIG, data->config); + if (ret) + return ret; + } + dev_dbg(dev, "Config %02x\n", data->config); + + ret = adt7x10_fill_cache(dev); + if (ret) + goto exit_restore; + + /* Register sysfs hooks */ + ret = sysfs_create_group(&dev->kobj, &adt7x10_group); + if (ret) + goto exit_restore; + + /* + * The I2C device will already have it's own 'name' attribute, but for + * the SPI device we need to register it. name will only be non NULL if + * the device doesn't register the 'name' attribute on its own. + */ + if (name) { + ret = device_create_file(dev, &dev_attr_name); + if (ret) + goto exit_remove; + } + + data->hwmon_dev = hwmon_device_register(dev); + if (IS_ERR(data->hwmon_dev)) { + ret = PTR_ERR(data->hwmon_dev); + goto exit_remove_name; + } + + if (irq > 0) { + ret = request_threaded_irq(irq, NULL, adt7x10_irq_handler, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + dev_name(dev), dev); + if (ret) + goto exit_hwmon_device_unregister; + } + + return 0; + +exit_hwmon_device_unregister: + hwmon_device_unregister(data->hwmon_dev); +exit_remove_name: + if (name) + device_remove_file(dev, &dev_attr_name); +exit_remove: + sysfs_remove_group(&dev->kobj, &adt7x10_group); +exit_restore: + adt7x10_write_byte(dev, ADT7X10_CONFIG, data->oldconfig); + return ret; +} +EXPORT_SYMBOL_GPL(adt7x10_probe); + +int adt7x10_remove(struct device *dev, int irq) +{ + struct adt7x10_data *data = dev_get_drvdata(dev); + + if (irq > 0) + free_irq(irq, dev); + + hwmon_device_unregister(data->hwmon_dev); + if (data->name) + device_remove_file(dev, &dev_attr_name); + sysfs_remove_group(&dev->kobj, &adt7x10_group); + if (data->oldconfig != data->config) + adt7x10_write_byte(dev, ADT7X10_CONFIG, data->oldconfig); + return 0; +} +EXPORT_SYMBOL_GPL(adt7x10_remove); + +#ifdef CONFIG_PM_SLEEP + +static int adt7x10_suspend(struct device *dev) +{ + struct adt7x10_data *data = dev_get_drvdata(dev); + + return adt7x10_write_byte(dev, ADT7X10_CONFIG, + data->config | ADT7X10_PD); +} + +static int adt7x10_resume(struct device *dev) +{ + struct adt7x10_data *data = dev_get_drvdata(dev); + + return adt7x10_write_byte(dev, ADT7X10_CONFIG, data->config); +} + +SIMPLE_DEV_PM_OPS(adt7x10_dev_pm_ops, adt7x10_suspend, adt7x10_resume); +EXPORT_SYMBOL_GPL(adt7x10_dev_pm_ops); + +#endif /* CONFIG_PM_SLEEP */ + +MODULE_AUTHOR("Hartmut Knaack"); +MODULE_DESCRIPTION("ADT7410/ADT7420, ADT7310/ADT7320 common code"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/adt7x10.h b/drivers/hwmon/adt7x10.h new file mode 100644 index 00000000000..d491c698529 --- /dev/null +++ b/drivers/hwmon/adt7x10.h @@ -0,0 +1,37 @@ +#ifndef __HWMON_ADT7X10_H__ +#define __HWMON_ADT7X10_H__ + +#include <linux/types.h> +#include <linux/pm.h> + +/* ADT7410 registers definition */ +#define ADT7X10_TEMPERATURE 0 +#define ADT7X10_STATUS 2 +#define ADT7X10_CONFIG 3 +#define ADT7X10_T_ALARM_HIGH 4 +#define ADT7X10_T_ALARM_LOW 6 +#define ADT7X10_T_CRIT 8 +#define ADT7X10_T_HYST 0xA +#define ADT7X10_ID 0xB + +struct device; + +struct adt7x10_ops { + int (*read_byte)(struct device *, u8 reg); + int (*write_byte)(struct device *, u8 reg, u8 data); + int (*read_word)(struct device *, u8 reg); + int (*write_word)(struct device *, u8 reg, u16 data); +}; + +int adt7x10_probe(struct device *dev, const char *name, int irq, + const struct adt7x10_ops *ops); +int adt7x10_remove(struct device *dev, int irq); + +#ifdef CONFIG_PM_SLEEP +extern const struct dev_pm_ops adt7x10_dev_pm_ops; +#define ADT7X10_DEV_PM_OPS (&adt7x10_dev_pm_ops) +#else +#define ADT7X10_DEV_PM_OPS NULL +#endif + +#endif diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c index b41baffa20f..62c2e32e25e 100644 --- a/drivers/hwmon/applesmc.c +++ b/drivers/hwmon/applesmc.c @@ -922,7 +922,7 @@ static void applesmc_brightness_set(struct led_classdev *led_cdev, ret = queue_work(applesmc_led_wq, &backlight_work); if (debug && (!ret)) - printk(KERN_DEBUG "applesmc: work was already on the queue.\n"); + dev_dbg(led_cdev->dev, "work was already on the queue.\n"); } static ssize_t applesmc_key_count_show(struct device *dev, diff --git a/drivers/hwmon/asb100.c b/drivers/hwmon/asb100.c index 6ac612cabda..f96063680e5 100644 --- a/drivers/hwmon/asb100.c +++ b/drivers/hwmon/asb100.c @@ -55,8 +55,8 @@ static const unsigned short normal_i2c[] = { 0x2d, I2C_CLIENT_END }; static unsigned short force_subclients[4]; module_param_array(force_subclients, short, NULL, 0); -MODULE_PARM_DESC(force_subclients, "List of subclient addresses: " - "{bus, clientaddr, subclientaddr1, subclientaddr2}"); +MODULE_PARM_DESC(force_subclients, + "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}"); /* Voltage IN registers 0-6 */ #define ASB100_REG_IN(nr) (0x20 + (nr)) @@ -689,8 +689,8 @@ static int asb100_detect_subclients(struct i2c_client *client) for (i = 2; i <= 3; i++) { if (force_subclients[i] < 0x48 || force_subclients[i] > 0x4f) { - dev_err(&client->dev, "invalid subclient " - "address %d; must be 0x48-0x4f\n", + dev_err(&client->dev, + "invalid subclient address %d; must be 0x48-0x4f\n", force_subclients[i]); err = -ENODEV; goto ERROR_SC_2; @@ -708,24 +708,27 @@ static int asb100_detect_subclients(struct i2c_client *client) } if (sc_addr[0] == sc_addr[1]) { - dev_err(&client->dev, "duplicate addresses 0x%x " - "for subclients\n", sc_addr[0]); + dev_err(&client->dev, + "duplicate addresses 0x%x for subclients\n", + sc_addr[0]); err = -ENODEV; goto ERROR_SC_2; } data->lm75[0] = i2c_new_dummy(adapter, sc_addr[0]); if (!data->lm75[0]) { - dev_err(&client->dev, "subclient %d registration " - "at address 0x%x failed.\n", 1, sc_addr[0]); + dev_err(&client->dev, + "subclient %d registration at address 0x%x failed.\n", + 1, sc_addr[0]); err = -ENOMEM; goto ERROR_SC_2; } data->lm75[1] = i2c_new_dummy(adapter, sc_addr[1]); if (!data->lm75[1]) { - dev_err(&client->dev, "subclient %d registration " - "at address 0x%x failed.\n", 2, sc_addr[1]); + dev_err(&client->dev, + "subclient %d registration at address 0x%x failed.\n", + 2, sc_addr[1]); err = -ENOMEM; goto ERROR_SC_3; } diff --git a/drivers/hwmon/asc7621.c b/drivers/hwmon/asc7621.c index da7f5b5d5db..3ad9d849add 100644 --- a/drivers/hwmon/asc7621.c +++ b/drivers/hwmon/asc7621.c @@ -159,12 +159,12 @@ static inline int write_byte(struct i2c_client *client, u8 reg, u8 data) * and retrieval of like parameters. */ -#define SETUP_SHOW_data_param(d, a) \ +#define SETUP_SHOW_DATA_PARAM(d, a) \ struct sensor_device_attribute *sda = to_sensor_dev_attr(a); \ struct asc7621_data *data = asc7621_update_device(d); \ struct asc7621_param *param = to_asc7621_param(sda) -#define SETUP_STORE_data_param(d, a) \ +#define SETUP_STORE_DATA_PARAM(d, a) \ struct sensor_device_attribute *sda = to_sensor_dev_attr(a); \ struct i2c_client *client = to_i2c_client(d); \ struct asc7621_data *data = i2c_get_clientdata(client); \ @@ -177,7 +177,7 @@ static inline int write_byte(struct i2c_client *client, u8 reg, u8 data) static ssize_t show_u8(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); return sprintf(buf, "%u\n", data->reg[param->msb[0]]); } @@ -185,7 +185,7 @@ static ssize_t show_u8(struct device *dev, struct device_attribute *attr, static ssize_t store_u8(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - SETUP_STORE_data_param(dev, attr); + SETUP_STORE_DATA_PARAM(dev, attr); long reqval; if (kstrtol(buf, 10, &reqval)) @@ -206,7 +206,7 @@ static ssize_t store_u8(struct device *dev, struct device_attribute *attr, static ssize_t show_bitmask(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); return sprintf(buf, "%u\n", (data->reg[param->msb[0]] >> param-> @@ -217,7 +217,7 @@ static ssize_t store_bitmask(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - SETUP_STORE_data_param(dev, attr); + SETUP_STORE_DATA_PARAM(dev, attr); long reqval; u8 currval; @@ -246,7 +246,7 @@ static ssize_t store_bitmask(struct device *dev, static ssize_t show_fan16(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); u16 regval; mutex_lock(&data->update_lock); @@ -262,7 +262,7 @@ static ssize_t store_fan16(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - SETUP_STORE_data_param(dev, attr); + SETUP_STORE_DATA_PARAM(dev, attr); long reqval; if (kstrtol(buf, 10, &reqval)) @@ -307,7 +307,7 @@ static int asc7621_in_scaling[] = { static ssize_t show_in10(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); u16 regval; u8 nr = sda->index; @@ -325,7 +325,7 @@ static ssize_t show_in10(struct device *dev, struct device_attribute *attr, static ssize_t show_in8(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); u8 nr = sda->index; return sprintf(buf, "%u\n", @@ -336,7 +336,7 @@ static ssize_t show_in8(struct device *dev, struct device_attribute *attr, static ssize_t store_in8(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - SETUP_STORE_data_param(dev, attr); + SETUP_STORE_DATA_PARAM(dev, attr); long reqval; u8 nr = sda->index; @@ -360,7 +360,7 @@ static ssize_t store_in8(struct device *dev, struct device_attribute *attr, static ssize_t show_temp8(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); return sprintf(buf, "%d\n", ((s8) data->reg[param->msb[0]]) * 1000); } @@ -369,7 +369,7 @@ static ssize_t store_temp8(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - SETUP_STORE_data_param(dev, attr); + SETUP_STORE_DATA_PARAM(dev, attr); long reqval; s8 temp; @@ -397,7 +397,7 @@ static ssize_t store_temp8(struct device *dev, static ssize_t show_temp10(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); u8 msb, lsb; int temp; @@ -414,7 +414,7 @@ static ssize_t show_temp10(struct device *dev, static ssize_t show_temp62(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); u8 regval = data->reg[param->msb[0]]; int temp = ((s8) (regval & 0xfc) * 1000) + ((regval & 0x03) * 250); @@ -425,7 +425,7 @@ static ssize_t store_temp62(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - SETUP_STORE_data_param(dev, attr); + SETUP_STORE_DATA_PARAM(dev, attr); long reqval, i, f; s8 temp; @@ -459,7 +459,7 @@ static u32 asc7621_range_map[] = { static ssize_t show_ap2_temp(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); long auto_point1; u8 regval; int temp; @@ -479,7 +479,7 @@ static ssize_t store_ap2_temp(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - SETUP_STORE_data_param(dev, attr); + SETUP_STORE_DATA_PARAM(dev, attr); long reqval, auto_point1; int i; u8 currval, newval = 0; @@ -510,7 +510,7 @@ static ssize_t store_ap2_temp(struct device *dev, static ssize_t show_pwm_ac(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); u8 config, altbit, regval; u8 map[] = { 0x01, 0x02, 0x04, 0x1f, 0x00, 0x06, 0x07, 0x10, @@ -530,7 +530,7 @@ static ssize_t store_pwm_ac(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - SETUP_STORE_data_param(dev, attr); + SETUP_STORE_DATA_PARAM(dev, attr); unsigned long reqval; u8 currval, config, altbit, newval; u16 map[] = { @@ -569,7 +569,7 @@ static ssize_t store_pwm_ac(struct device *dev, static ssize_t show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); u8 config, altbit, minoff, val, newval; mutex_lock(&data->update_lock); @@ -599,7 +599,7 @@ static ssize_t store_pwm_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - SETUP_STORE_data_param(dev, attr); + SETUP_STORE_DATA_PARAM(dev, attr); long reqval; u8 currval, config, altbit, newval, minoff = 255; @@ -659,7 +659,7 @@ static u32 asc7621_pwm_freq_map[] = { static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); u8 regval = (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; @@ -672,7 +672,7 @@ static ssize_t store_pwm_freq(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - SETUP_STORE_data_param(dev, attr); + SETUP_STORE_DATA_PARAM(dev, attr); unsigned long reqval; u8 currval, newval = 255; int i; @@ -707,7 +707,7 @@ static u32 asc7621_pwm_auto_spinup_map[] = { static ssize_t show_pwm_ast(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); u8 regval = (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; @@ -721,7 +721,7 @@ static ssize_t store_pwm_ast(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - SETUP_STORE_data_param(dev, attr); + SETUP_STORE_DATA_PARAM(dev, attr); long reqval; u8 currval, newval = 255; u32 i; @@ -756,7 +756,7 @@ static u32 asc7621_temp_smoothing_time_map[] = { static ssize_t show_temp_st(struct device *dev, struct device_attribute *attr, char *buf) { - SETUP_SHOW_data_param(dev, attr); + SETUP_SHOW_DATA_PARAM(dev, attr); u8 regval = (data->reg[param->msb[0]] >> param->shift[0]) & param->mask[0]; regval = clamp_val(regval, 0, 7); @@ -768,7 +768,7 @@ static ssize_t store_temp_st(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - SETUP_STORE_data_param(dev, attr); + SETUP_STORE_DATA_PARAM(dev, attr); long reqval; u8 currval, newval = 255; u32 i; diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 3f1e297663a..658ce3a8717 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -411,8 +411,7 @@ static int __cpuinit chk_ucode_version(unsigned int cpu) * fixed for stepping D0 (6EC). */ if (c->x86_model == 0xe && c->x86_mask < 0xc && c->microcode < 0x39) { - pr_err("Errata AE18 not fixed, update BIOS or " - "microcode of the CPU!\n"); + pr_err("Errata AE18 not fixed, update BIOS or microcode of the CPU!\n"); return -ENODEV; } return 0; diff --git a/drivers/hwmon/da9052-hwmon.c b/drivers/hwmon/da9052-hwmon.c index ab4452c5a98..960fac3fb16 100644 --- a/drivers/hwmon/da9052-hwmon.c +++ b/drivers/hwmon/da9052-hwmon.c @@ -43,19 +43,19 @@ static const char * const input_names[] = { }; /* Conversion function for VDDOUT and VBAT */ -static inline int volt_reg_to_mV(int value) +static inline int volt_reg_to_mv(int value) { return DIV_ROUND_CLOSEST(value * 1000, 512) + 2500; } /* Conversion function for ADC channels 4, 5 and 6 */ -static inline int input_reg_to_mV(int value) +static inline int input_reg_to_mv(int value) { return DIV_ROUND_CLOSEST(value * 2500, 1023); } /* Conversion function for VBBAT */ -static inline int vbbat_reg_to_mV(int value) +static inline int vbbat_reg_to_mv(int value) { return DIV_ROUND_CLOSEST(value * 2500, 512); } @@ -96,7 +96,7 @@ static ssize_t da9052_read_vddout(struct device *dev, goto hwmon_err; mutex_unlock(&hwmon->hwmon_lock); - return sprintf(buf, "%d\n", volt_reg_to_mV(vdd)); + return sprintf(buf, "%d\n", volt_reg_to_mv(vdd)); hwmon_err_release: da9052_disable_vddout_channel(hwmon->da9052); @@ -137,7 +137,7 @@ static ssize_t da9052_read_vbat(struct device *dev, if (ret < 0) return ret; - return sprintf(buf, "%d\n", volt_reg_to_mV(ret)); + return sprintf(buf, "%d\n", volt_reg_to_mv(ret)); } static ssize_t da9052_read_misc_channel(struct device *dev, @@ -152,7 +152,7 @@ static ssize_t da9052_read_misc_channel(struct device *dev, if (ret < 0) return ret; - return sprintf(buf, "%d\n", input_reg_to_mV(ret)); + return sprintf(buf, "%d\n", input_reg_to_mv(ret)); } static ssize_t da9052_read_tjunc(struct device *dev, @@ -187,7 +187,7 @@ static ssize_t da9052_read_vbbat(struct device *dev, if (ret < 0) return ret; - return sprintf(buf, "%d\n", vbbat_reg_to_mV(ret)); + return sprintf(buf, "%d\n", vbbat_reg_to_mv(ret)); } static ssize_t da9052_hwmon_show_name(struct device *dev, diff --git a/drivers/hwmon/da9055-hwmon.c b/drivers/hwmon/da9055-hwmon.c index 9465c050c32..029ecabc438 100644 --- a/drivers/hwmon/da9055-hwmon.c +++ b/drivers/hwmon/da9055-hwmon.c @@ -119,7 +119,7 @@ static irqreturn_t da9055_auxadc_irq(int irq, void *irq_data) } /* Conversion function for VSYS and ADCINx */ -static inline int volt_reg_to_mV(int value, int channel) +static inline int volt_reg_to_mv(int value, int channel) { if (channel == DA9055_ADC_VSYS) return DIV_ROUND_CLOSEST(value * 1000, DA9055_VSYS_DIV) + 2500; @@ -168,7 +168,7 @@ static ssize_t da9055_read_auto_ch(struct device *dev, mutex_unlock(&hwmon->hwmon_lock); - return sprintf(buf, "%d\n", volt_reg_to_mV(adc, channel)); + return sprintf(buf, "%d\n", volt_reg_to_mv(adc, channel)); hwmon_err_release: da9055_disable_auto_mode(hwmon->da9055, channel); diff --git a/drivers/hwmon/dme1737.c b/drivers/hwmon/dme1737.c index c347c94f2f7..4ae3fff13f4 100644 --- a/drivers/hwmon/dme1737.c +++ b/drivers/hwmon/dme1737.c @@ -55,14 +55,16 @@ MODULE_PARM_DESC(force_id, "Override the detected device ID"); static bool probe_all_addr; module_param(probe_all_addr, bool, 0); -MODULE_PARM_DESC(probe_all_addr, "Include probing of non-standard LPC " - "addresses"); +MODULE_PARM_DESC(probe_all_addr, + "Include probing of non-standard LPC addresses"); /* Addresses to scan */ static const unsigned short normal_i2c[] = {0x2c, 0x2d, 0x2e, I2C_CLIENT_END}; enum chips { dme1737, sch5027, sch311x, sch5127 }; +#define DO_REPORT "Please report to the driver maintainer." + /* --------------------------------------------------------------------- * Registers * @@ -566,9 +568,9 @@ static u8 dme1737_read(const struct dme1737_data *data, u8 reg) val = i2c_smbus_read_byte_data(client, reg); if (val < 0) { - dev_warn(&client->dev, "Read from register " - "0x%02x failed! Please report to the driver " - "maintainer.\n", reg); + dev_warn(&client->dev, + "Read from register 0x%02x failed! %s\n", + reg, DO_REPORT); } } else { /* ISA device */ outb(reg, data->addr); @@ -587,9 +589,9 @@ static s32 dme1737_write(const struct dme1737_data *data, u8 reg, u8 val) res = i2c_smbus_write_byte_data(client, reg, val); if (res < 0) { - dev_warn(&client->dev, "Write to register " - "0x%02x failed! Please report to the driver " - "maintainer.\n", reg); + dev_warn(&client->dev, + "Write to register 0x%02x failed! %s\n", + reg, DO_REPORT); } } else { /* ISA device */ outb(reg, data->addr); @@ -1167,8 +1169,8 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *attr, /* Only valid for fan[1-4] */ if (!(val == 1 || val == 2 || val == 4)) { count = -EINVAL; - dev_warn(dev, "Fan type value %ld not " - "supported. Choose one of 1, 2, or 4.\n", + dev_warn(dev, + "Fan type value %ld not supported. Choose one of 1, 2, or 4.\n", val); goto exit; } @@ -1294,8 +1296,8 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, /* Only valid for pwm[1-3] */ if (val < 0 || val > 2) { count = -EINVAL; - dev_warn(dev, "PWM enable %ld not " - "supported. Choose one of 0, 1, or 2.\n", + dev_warn(dev, + "PWM enable %ld not supported. Choose one of 0, 1, or 2.\n", val); goto exit; } @@ -1399,8 +1401,8 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, if (!(val == 1 || val == 2 || val == 4 || val == 6 || val == 7)) { count = -EINVAL; - dev_warn(dev, "PWM auto channels zone %ld " - "not supported. Choose one of 1, 2, 4, 6, " + dev_warn(dev, + "PWM auto channels zone %ld not supported. Choose one of 1, 2, 4, 6, " "or 7.\n", val); goto exit; } @@ -2178,8 +2180,8 @@ static int dme1737_create_files(struct device *dev) * selected attributes from read-only to read-writeable. */ if (data->config & 0x02) { - dev_info(dev, "Device is locked. Some attributes " - "will be read-only.\n"); + dev_info(dev, + "Device is locked. Some attributes will be read-only.\n"); } else { /* Change permissions of zone sysfs attributes */ dme1737_chmod_group(dev, &dme1737_zone_chmod_group, @@ -2247,9 +2249,8 @@ static int dme1737_init_device(struct device *dev) /* Inform if part is not monitoring/started */ if (!(data->config & 0x01)) { if (!force_start) { - dev_err(dev, "Device is not monitoring. " - "Use the force_start load parameter to " - "override.\n"); + dev_err(dev, + "Device is not monitoring. Use the force_start load parameter to override.\n"); return -EFAULT; } @@ -2289,8 +2290,8 @@ static int dme1737_init_device(struct device *dev) */ if (dme1737_i2c_get_features(0x2e, data) && dme1737_i2c_get_features(0x4e, data)) { - dev_warn(dev, "Failed to query Super-IO for optional " - "features.\n"); + dev_warn(dev, + "Failed to query Super-IO for optional features.\n"); } } @@ -2317,8 +2318,8 @@ static int dme1737_init_device(struct device *dev) break; } - dev_info(dev, "Optional features: pwm3=%s, pwm5=%s, pwm6=%s, " - "fan3=%s, fan4=%s, fan5=%s, fan6=%s.\n", + dev_info(dev, + "Optional features: pwm3=%s, pwm5=%s, pwm6=%s, fan3=%s, fan4=%s, fan5=%s, fan6=%s.\n", (data->has_features & HAS_PWM(2)) ? "yes" : "no", (data->has_features & HAS_PWM(4)) ? "yes" : "no", (data->has_features & HAS_PWM(5)) ? "yes" : "no", @@ -2330,18 +2331,16 @@ static int dme1737_init_device(struct device *dev) reg = dme1737_read(data, DME1737_REG_TACH_PWM); /* Inform if fan-to-pwm mapping differs from the default */ if (client && reg != 0xa4) { /* I2C chip */ - dev_warn(dev, "Non-standard fan to pwm mapping: " - "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d, " - "fan4->pwm%d. Please report to the driver " - "maintainer.\n", + dev_warn(dev, + "Non-standard fan to pwm mapping: fan1->pwm%d, fan2->pwm%d, fan3->pwm%d, fan4->pwm%d. %s\n", (reg & 0x03) + 1, ((reg >> 2) & 0x03) + 1, - ((reg >> 4) & 0x03) + 1, ((reg >> 6) & 0x03) + 1); + ((reg >> 4) & 0x03) + 1, ((reg >> 6) & 0x03) + 1, + DO_REPORT); } else if (!client && reg != 0x24) { /* ISA chip */ - dev_warn(dev, "Non-standard fan to pwm mapping: " - "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d. " - "Please report to the driver maintainer.\n", + dev_warn(dev, + "Non-standard fan to pwm mapping: fan1->pwm%d, fan2->pwm%d, fan3->pwm%d. %s\n", (reg & 0x03) + 1, ((reg >> 2) & 0x03) + 1, - ((reg >> 4) & 0x03) + 1); + ((reg >> 4) & 0x03) + 1, DO_REPORT); } /* @@ -2355,8 +2354,9 @@ static int dme1737_init_device(struct device *dev) DME1737_REG_PWM_CONFIG(ix)); if ((data->has_features & HAS_PWM(ix)) && (PWM_EN_FROM_REG(data->pwm_config[ix]) == -1)) { - dev_info(dev, "Switching pwm%d to " - "manual mode.\n", ix + 1); + dev_info(dev, + "Switching pwm%d to manual mode.\n", + ix + 1); data->pwm_config[ix] = PWM_EN_TO_REG(1, data->pwm_config[ix]); dme1737_write(data, DME1737_REG_PWM(ix), 0); diff --git a/drivers/hwmon/f71805f.c b/drivers/hwmon/f71805f.c index a9816979c5d..0c9f3da242b 100644 --- a/drivers/hwmon/f71805f.c +++ b/drivers/hwmon/f71805f.c @@ -1350,8 +1350,7 @@ static void f71805f_init_device(struct f71805f_data *data) reg = f71805f_read8(data, F71805F_REG_START); if ((reg & 0x41) != 0x01) { - printk(KERN_DEBUG DRVNAME ": Starting monitoring " - "operations\n"); + pr_debug("Starting monitoring operations\n"); f71805f_write8(data, F71805F_REG_START, (reg | 0x01) & ~0x40); } diff --git a/drivers/hwmon/fam15h_power.c b/drivers/hwmon/fam15h_power.c index b757088aedd..dff841085ba 100644 --- a/drivers/hwmon/fam15h_power.c +++ b/drivers/hwmon/fam15h_power.c @@ -189,8 +189,8 @@ static void fam15h_power_init_data(struct pci_dev *f4, /* result not allowed to be >= 256W */ if ((tmp >> 16) >= 256) - dev_warn(&f4->dev, "Bogus value for ProcessorPwrWatts " - "(processor_pwr_watts>=%u)\n", + dev_warn(&f4->dev, + "Bogus value for ProcessorPwrWatts (processor_pwr_watts>=%u)\n", (unsigned int) (tmp >> 16)); /* convert to microWatt */ diff --git a/drivers/hwmon/fschmd.c b/drivers/hwmon/fschmd.c index 8af2755cdb8..d58abdc5a4c 100644 --- a/drivers/hwmon/fschmd.c +++ b/drivers/hwmon/fschmd.c @@ -463,8 +463,9 @@ static ssize_t store_fan_div(struct device *dev, struct device_attribute v = 3; break; default: - dev_err(dev, "fan_div value %lu not supported. " - "Choose one of 2, 4 or 8!\n", v); + dev_err(dev, + "fan_div value %lu not supported. Choose one of 2, 4 or 8!\n", + v); return -EINVAL; } @@ -1249,8 +1250,8 @@ static int fschmd_probe(struct i2c_client *client, } if (i == ARRAY_SIZE(watchdog_minors)) { data->watchdog_miscdev.minor = 0; - dev_warn(&client->dev, "Couldn't register watchdog chardev " - "(due to no free minor)\n"); + dev_warn(&client->dev, + "Couldn't register watchdog chardev (due to no free minor)\n"); } mutex_unlock(&watchdog_data_mutex); diff --git a/drivers/hwmon/gl518sm.c b/drivers/hwmon/gl518sm.c index e2e5909a34d..95257a5621d 100644 --- a/drivers/hwmon/gl518sm.c +++ b/drivers/hwmon/gl518sm.c @@ -344,8 +344,9 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, val = 3; break; default: - dev_err(dev, "Invalid fan clock divider %lu, choose one " - "of 1, 2, 4 or 8\n", val); + dev_err(dev, + "Invalid fan clock divider %lu, choose one of 1, 2, 4 or 8\n", + val); return -EINVAL; } diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c index 39781945a5d..3104149795c 100644 --- a/drivers/hwmon/gpio-fan.c +++ b/drivers/hwmon/gpio-fan.c @@ -105,10 +105,6 @@ static int fan_alarm_init(struct gpio_fan_data *fan_data, if (err) return err; - err = device_create_file(&pdev->dev, &dev_attr_fan1_alarm); - if (err) - return err; - /* * If the alarm GPIO don't support interrupts, just leave * without initializing the fail notification support. @@ -121,23 +117,9 @@ static int fan_alarm_init(struct gpio_fan_data *fan_data, irq_set_irq_type(alarm_irq, IRQ_TYPE_EDGE_BOTH); err = devm_request_irq(&pdev->dev, alarm_irq, fan_alarm_irq_handler, IRQF_SHARED, "GPIO fan alarm", fan_data); - if (err) - goto err_free_sysfs; - - return 0; - -err_free_sysfs: - device_remove_file(&pdev->dev, &dev_attr_fan1_alarm); return err; } -static void fan_alarm_free(struct gpio_fan_data *fan_data) -{ - struct platform_device *pdev = fan_data->pdev; - - device_remove_file(&pdev->dev, &dev_attr_fan1_alarm); -} - /* * Control GPIOs. */ @@ -327,6 +309,12 @@ exit_unlock: return ret; } +static ssize_t show_name(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "gpio-fan\n"); +} + static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm); static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable, set_pwm_enable); @@ -336,8 +324,26 @@ static DEVICE_ATTR(fan1_max, S_IRUGO, show_rpm_max, NULL); static DEVICE_ATTR(fan1_input, S_IRUGO, show_rpm, NULL); static DEVICE_ATTR(fan1_target, S_IRUGO | S_IWUSR, show_rpm, set_rpm); -static struct attribute *gpio_fan_ctrl_attributes[] = { - &dev_attr_pwm1.attr, +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); + +static umode_t gpio_fan_is_visible(struct kobject *kobj, + struct attribute *attr, int index) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct gpio_fan_data *data = dev_get_drvdata(dev); + + if (index == 1 && !data->alarm) + return 0; + if (index > 1 && !data->ctrl) + return 0; + + return attr->mode; +} + +static struct attribute *gpio_fan_attributes[] = { + &dev_attr_name.attr, + &dev_attr_fan1_alarm.attr, /* 1 */ + &dev_attr_pwm1.attr, /* 2 */ &dev_attr_pwm1_enable.attr, &dev_attr_pwm1_mode.attr, &dev_attr_fan1_input.attr, @@ -347,8 +353,9 @@ static struct attribute *gpio_fan_ctrl_attributes[] = { NULL }; -static const struct attribute_group gpio_fan_ctrl_group = { - .attrs = gpio_fan_ctrl_attributes, +static const struct attribute_group gpio_fan_group = { + .attrs = gpio_fan_attributes, + .is_visible = gpio_fan_is_visible, }; static int fan_ctrl_init(struct gpio_fan_data *fan_data, @@ -379,30 +386,9 @@ static int fan_ctrl_init(struct gpio_fan_data *fan_data, if (fan_data->speed_index < 0) return -ENODEV; - err = sysfs_create_group(&pdev->dev.kobj, &gpio_fan_ctrl_group); - return err; -} - -static void fan_ctrl_free(struct gpio_fan_data *fan_data) -{ - struct platform_device *pdev = fan_data->pdev; - - sysfs_remove_group(&pdev->dev.kobj, &gpio_fan_ctrl_group); -} - -/* - * Platform driver. - */ - -static ssize_t show_name(struct device *dev, - struct device_attribute *attr, char *buf) -{ - return sprintf(buf, "gpio-fan\n"); + return 0; } -static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); - - #ifdef CONFIG_OF_GPIO /* * Translate OpenFirmware node properties into platform_data @@ -546,38 +532,30 @@ static int gpio_fan_probe(struct platform_device *pdev) /* Configure control GPIOs if available. */ if (pdata->ctrl && pdata->num_ctrl > 0) { - if (!pdata->speed || pdata->num_speed <= 1) { - err = -EINVAL; - goto err_free_alarm; - } + if (!pdata->speed || pdata->num_speed <= 1) + return -EINVAL; err = fan_ctrl_init(fan_data, pdata); if (err) - goto err_free_alarm; + return err; } - err = device_create_file(&pdev->dev, &dev_attr_name); + err = sysfs_create_group(&pdev->dev.kobj, &gpio_fan_group); if (err) - goto err_free_ctrl; + return err; /* Make this driver part of hwmon class. */ fan_data->hwmon_dev = hwmon_device_register(&pdev->dev); if (IS_ERR(fan_data->hwmon_dev)) { err = PTR_ERR(fan_data->hwmon_dev); - goto err_remove_name; + goto err_remove; } dev_info(&pdev->dev, "GPIO fan initialized\n"); return 0; -err_remove_name: - device_remove_file(&pdev->dev, &dev_attr_name); -err_free_ctrl: - if (fan_data->ctrl) - fan_ctrl_free(fan_data); -err_free_alarm: - if (fan_data->alarm) - fan_alarm_free(fan_data); +err_remove: + sysfs_remove_group(&pdev->dev.kobj, &gpio_fan_group); return err; } @@ -586,11 +564,7 @@ static int gpio_fan_remove(struct platform_device *pdev) struct gpio_fan_data *fan_data = platform_get_drvdata(pdev); hwmon_device_unregister(fan_data->hwmon_dev); - device_remove_file(&pdev->dev, &dev_attr_name); - if (fan_data->alarm) - fan_alarm_free(fan_data); - if (fan_data->ctrl) - fan_ctrl_free(fan_data); + sysfs_remove_group(&pdev->dev.kobj, &gpio_fan_group); return 0; } @@ -619,7 +593,7 @@ static int gpio_fan_resume(struct device *dev) } static SIMPLE_DEV_PM_OPS(gpio_fan_pm, gpio_fan_suspend, gpio_fan_resume); -#define GPIO_FAN_PM &gpio_fan_pm +#define GPIO_FAN_PM (&gpio_fan_pm) #else #define GPIO_FAN_PM NULL #endif diff --git a/drivers/hwmon/ibmaem.c b/drivers/hwmon/ibmaem.c index a14f634248e..1429f6e177f 100644 --- a/drivers/hwmon/ibmaem.c +++ b/drivers/hwmon/ibmaem.c @@ -289,8 +289,9 @@ static int aem_init_ipmi_data(struct aem_ipmi_data *data, int iface, err = ipmi_create_user(data->interface, &driver_data.ipmi_hndlrs, data, &data->user); if (err < 0) { - dev_err(bmc, "Unable to register user with IPMI " - "interface %d\n", data->interface); + dev_err(bmc, + "Unable to register user with IPMI interface %d\n", + data->interface); return -EACCES; } @@ -328,8 +329,8 @@ static void aem_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data) struct aem_ipmi_data *data = user_msg_data; if (msg->msgid != data->tx_msgid) { - dev_err(data->bmc_device, "Mismatch between received msgid " - "(%02x) and transmitted msgid (%02x)!\n", + dev_err(data->bmc_device, + "Mismatch between received msgid (%02x) and transmitted msgid (%02x)!\n", (int)msg->msgid, (int)data->tx_msgid); ipmi_free_recv_msg(msg); @@ -575,8 +576,8 @@ static int aem_init_aem1_inst(struct aem_ipmi_data *probe, u8 module_handle) /* Register with hwmon */ data->hwmon_dev = hwmon_device_register(&data->pdev->dev); if (IS_ERR(data->hwmon_dev)) { - dev_err(&data->pdev->dev, "Unable to register hwmon " - "device for IPMI interface %d\n", + dev_err(&data->pdev->dev, + "Unable to register hwmon device for IPMI interface %d\n", probe->interface); res = PTR_ERR(data->hwmon_dev); goto hwmon_reg_err; @@ -715,8 +716,8 @@ static int aem_init_aem2_inst(struct aem_ipmi_data *probe, /* Register with hwmon */ data->hwmon_dev = hwmon_device_register(&data->pdev->dev); if (IS_ERR(data->hwmon_dev)) { - dev_err(&data->pdev->dev, "Unable to register hwmon " - "device for IPMI interface %d\n", + dev_err(&data->pdev->dev, + "Unable to register hwmon device for IPMI interface %d\n", probe->interface); res = PTR_ERR(data->hwmon_dev); goto hwmon_reg_err; @@ -768,8 +769,8 @@ static void aem_init_aem2(struct aem_ipmi_data *probe) while (!aem_find_aem2(probe, &fi_resp, i)) { if (fi_resp.major != 2) { - dev_err(probe->bmc_device, "Unknown AEM v%d; please " - "report this to the maintainer.\n", + dev_err(probe->bmc_device, + "Unknown AEM v%d; please report this to the maintainer.\n", fi_resp.major); i++; continue; diff --git a/drivers/hwmon/ibmpex.c b/drivers/hwmon/ibmpex.c index b622a93ec32..74b365ea01c 100644 --- a/drivers/hwmon/ibmpex.c +++ b/drivers/hwmon/ibmpex.c @@ -163,8 +163,8 @@ static int ibmpex_ver_check(struct ibmpex_bmc_data *data) data->sensor_major = data->rx_msg_data[0]; data->sensor_minor = data->rx_msg_data[1]; - dev_info(data->bmc_device, "Found BMC with sensor interface " - "v%d.%d %d-%02d-%02d on interface %d\n", + dev_info(data->bmc_device, + "Found BMC with sensor interface v%d.%d %d-%02d-%02d on interface %d\n", data->sensor_major, data->sensor_minor, extract_value(data->rx_msg_data, 2), @@ -478,8 +478,9 @@ static void ibmpex_register_bmc(int iface, struct device *dev) err = ipmi_create_user(data->interface, &driver_data.ipmi_hndlrs, data, &data->user); if (err < 0) { - dev_err(dev, "Unable to register user with IPMI " - "interface %d\n", data->interface); + dev_err(dev, + "Unable to register user with IPMI interface %d\n", + data->interface); goto out; } @@ -501,8 +502,8 @@ static void ibmpex_register_bmc(int iface, struct device *dev) data->hwmon_dev = hwmon_device_register(data->bmc_device); if (IS_ERR(data->hwmon_dev)) { - dev_err(data->bmc_device, "Unable to register hwmon " - "device for IPMI interface %d\n", + dev_err(data->bmc_device, + "Unable to register hwmon device for IPMI interface %d\n", data->interface); goto out_user; } @@ -567,8 +568,8 @@ static void ibmpex_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data) struct ibmpex_bmc_data *data = (struct ibmpex_bmc_data *)user_msg_data; if (msg->msgid != data->tx_msgid) { - dev_err(data->bmc_device, "Mismatch between received msgid " - "(%02x) and transmitted msgid (%02x)!\n", + dev_err(data->bmc_device, + "Mismatch between received msgid (%02x) and transmitted msgid (%02x)!\n", (int)msg->msgid, (int)data->tx_msgid); ipmi_free_recv_msg(msg); diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c index 8e7158c3ad2..4958b2f89dc 100644 --- a/drivers/hwmon/ina2xx.c +++ b/drivers/hwmon/ina2xx.c @@ -186,20 +186,20 @@ static ssize_t ina2xx_show_value(struct device *dev, } /* shunt voltage */ -static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, \ - ina2xx_show_value, NULL, INA2XX_SHUNT_VOLTAGE); +static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, ina2xx_show_value, NULL, + INA2XX_SHUNT_VOLTAGE); /* bus voltage */ -static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, \ - ina2xx_show_value, NULL, INA2XX_BUS_VOLTAGE); +static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, ina2xx_show_value, NULL, + INA2XX_BUS_VOLTAGE); /* calculated current */ -static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, \ - ina2xx_show_value, NULL, INA2XX_CURRENT); +static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, ina2xx_show_value, NULL, + INA2XX_CURRENT); /* calculated power */ -static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO, \ - ina2xx_show_value, NULL, INA2XX_POWER); +static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO, ina2xx_show_value, NULL, + INA2XX_POWER); /* pointers to created device attributes */ static struct attribute *ina2xx_attributes[] = { diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index 37fc980fde2..72b21d5b1c6 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -1778,7 +1778,7 @@ static int __init it87_find(unsigned short *address, superio_select(5); sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; } else if (sio_data->type == it8783) { - int reg25, reg27, reg2A, reg2C, regEF; + int reg25, reg27, reg2a, reg2c, regef; sio_data->skip_vid = 1; /* No VID */ @@ -1786,15 +1786,15 @@ static int __init it87_find(unsigned short *address, reg25 = superio_inb(IT87_SIO_GPIO1_REG); reg27 = superio_inb(IT87_SIO_GPIO3_REG); - reg2A = superio_inb(IT87_SIO_PINX1_REG); - reg2C = superio_inb(IT87_SIO_PINX2_REG); - regEF = superio_inb(IT87_SIO_SPI_REG); + reg2a = superio_inb(IT87_SIO_PINX1_REG); + reg2c = superio_inb(IT87_SIO_PINX2_REG); + regef = superio_inb(IT87_SIO_SPI_REG); /* Check if fan3 is there or not */ - if ((reg27 & (1 << 0)) || !(reg2C & (1 << 2))) + if ((reg27 & (1 << 0)) || !(reg2c & (1 << 2))) sio_data->skip_fan |= (1 << 2); if ((reg25 & (1 << 4)) - || (!(reg2A & (1 << 1)) && (regEF & (1 << 0)))) + || (!(reg2a & (1 << 1)) && (regef & (1 << 0)))) sio_data->skip_pwm |= (1 << 2); /* Check if fan2 is there or not */ @@ -1804,7 +1804,7 @@ static int __init it87_find(unsigned short *address, sio_data->skip_pwm |= (1 << 1); /* VIN5 */ - if ((reg27 & (1 << 0)) || (reg2C & (1 << 2))) + if ((reg27 & (1 << 0)) || (reg2c & (1 << 2))) sio_data->skip_in |= (1 << 5); /* No VIN5 */ /* VIN6 */ @@ -1829,18 +1829,18 @@ static int __init it87_find(unsigned short *address, * not the case, and ask the user to report if the * resulting voltage is sane. */ - if (!(reg2C & (1 << 1))) { - reg2C |= (1 << 1); - superio_outb(IT87_SIO_PINX2_REG, reg2C); + if (!(reg2c & (1 << 1))) { + reg2c |= (1 << 1); + superio_outb(IT87_SIO_PINX2_REG, reg2c); pr_notice("Routing internal VCCH5V to in7.\n"); } pr_notice("in7 routed to internal voltage divider, with external pin disabled.\n"); pr_notice("Please report if it displays a reasonable voltage.\n"); } - if (reg2C & (1 << 0)) + if (reg2c & (1 << 0)) sio_data->internal |= (1 << 0); - if (reg2C & (1 << 1)) + if (reg2c & (1 << 1)) sio_data->internal |= (1 << 1); sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f; diff --git a/drivers/hwmon/k8temp.c b/drivers/hwmon/k8temp.c index 9f3c0aeacdb..5b50e9e4f96 100644 --- a/drivers/hwmon/k8temp.c +++ b/drivers/hwmon/k8temp.c @@ -200,8 +200,8 @@ static int k8temp_probe(struct pci_dev *pdev, */ if (model >= 0x40) { data->swap_core_select = 1; - dev_warn(&pdev->dev, "Temperature readouts might be wrong - " - "check erratum #141\n"); + dev_warn(&pdev->dev, + "Temperature readouts might be wrong - check erratum #141\n"); } /* diff --git a/drivers/hwmon/lm78.c b/drivers/hwmon/lm78.c index 483538fa1bd..6cf6bff7900 100644 --- a/drivers/hwmon/lm78.c +++ b/drivers/hwmon/lm78.c @@ -386,8 +386,9 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *da, data->fan_div[nr] = 3; break; default: - dev_err(dev, "fan_div value %ld not " - "supported. Choose one of 1, 2, 4 or 8!\n", val); + dev_err(dev, + "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", + val); mutex_unlock(&data->update_lock); return -EINVAL; } @@ -636,8 +637,9 @@ static int lm78_i2c_detect(struct i2c_client *client, goto err_nodev; if (lm78_alias_detect(client, i)) { - dev_dbg(&adapter->dev, "Device at 0x%02x appears to " - "be the same as ISA device\n", address); + dev_dbg(&adapter->dev, + "Device at 0x%02x appears to be the same as ISA device\n", + address); goto err_nodev; } diff --git a/drivers/hwmon/lm80.c b/drivers/hwmon/lm80.c index 357fbb99872..eba89aac3ec 100644 --- a/drivers/hwmon/lm80.c +++ b/drivers/hwmon/lm80.c @@ -286,8 +286,9 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, data->fan_div[nr] = 3; break; default: - dev_err(&client->dev, "fan_div value %ld not " - "supported. Choose one of 1, 2, 4 or 8!\n", val); + dev_err(&client->dev, + "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", + val); mutex_unlock(&data->update_lock); return -EINVAL; } diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c index 47ade8ba152..3894c408fda 100644 --- a/drivers/hwmon/lm85.c +++ b/drivers/hwmon/lm85.c @@ -1293,8 +1293,8 @@ static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info) company = lm85_read_value(client, LM85_REG_COMPANY); verstep = lm85_read_value(client, LM85_REG_VERSTEP); - dev_dbg(&adapter->dev, "Detecting device at 0x%02x with " - "COMPANY: 0x%02x and VERSTEP: 0x%02x\n", + dev_dbg(&adapter->dev, + "Detecting device at 0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n", address, company, verstep); /* All supported chips have the version in common */ diff --git a/drivers/hwmon/lm93.c b/drivers/hwmon/lm93.c index b40f34cdb3c..a6f46058b1b 100644 --- a/drivers/hwmon/lm93.c +++ b/drivers/hwmon/lm93.c @@ -354,12 +354,12 @@ static const unsigned long lm93_vin_val_max[16] = { static unsigned LM93_IN_FROM_REG(int nr, u8 reg) { - const long uV_max = lm93_vin_val_max[nr] * 1000; - const long uV_min = lm93_vin_val_min[nr] * 1000; + const long uv_max = lm93_vin_val_max[nr] * 1000; + const long uv_min = lm93_vin_val_min[nr] * 1000; - const long slope = (uV_max - uV_min) / + const long slope = (uv_max - uv_min) / (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]); - const long intercept = uV_min - slope * lm93_vin_reg_min[nr]; + const long intercept = uv_min - slope * lm93_vin_reg_min[nr]; return (slope * reg + intercept + 500) / 1000; } @@ -371,20 +371,20 @@ static unsigned LM93_IN_FROM_REG(int nr, u8 reg) static u8 LM93_IN_TO_REG(int nr, unsigned val) { /* range limit */ - const long mV = clamp_val(val, + const long mv = clamp_val(val, lm93_vin_val_min[nr], lm93_vin_val_max[nr]); /* try not to lose too much precision here */ - const long uV = mV * 1000; - const long uV_max = lm93_vin_val_max[nr] * 1000; - const long uV_min = lm93_vin_val_min[nr] * 1000; + const long uv = mv * 1000; + const long uv_max = lm93_vin_val_max[nr] * 1000; + const long uv_min = lm93_vin_val_min[nr] * 1000; /* convert */ - const long slope = (uV_max - uV_min) / + const long slope = (uv_max - uv_min) / (lm93_vin_reg_max[nr] - lm93_vin_reg_min[nr]); - const long intercept = uV_min - slope * lm93_vin_reg_min[nr]; + const long intercept = uv_min - slope * lm93_vin_reg_min[nr]; - u8 result = ((uV - intercept + (slope/2)) / slope); + u8 result = ((uv - intercept + (slope/2)) / slope); result = clamp_val(result, lm93_vin_reg_min[nr], lm93_vin_reg_max[nr]); return result; @@ -393,10 +393,10 @@ static u8 LM93_IN_TO_REG(int nr, unsigned val) /* vid in mV, upper == 0 indicates low limit, otherwise upper limit */ static unsigned LM93_IN_REL_FROM_REG(u8 reg, int upper, int vid) { - const long uV_offset = upper ? (((reg >> 4 & 0x0f) + 1) * 12500) : + const long uv_offset = upper ? (((reg >> 4 & 0x0f) + 1) * 12500) : (((reg >> 0 & 0x0f) + 1) * -25000); - const long uV_vid = vid * 1000; - return (uV_vid + uV_offset + 5000) / 10000; + const long uv_vid = vid * 1000; + return (uv_vid + uv_offset + 5000) / 10000; } #define LM93_IN_MIN_FROM_REG(reg, vid) LM93_IN_REL_FROM_REG((reg), 0, (vid)) @@ -409,13 +409,13 @@ static unsigned LM93_IN_REL_FROM_REG(u8 reg, int upper, int vid) */ static u8 LM93_IN_REL_TO_REG(unsigned val, int upper, int vid) { - long uV_offset = vid * 1000 - val * 10000; + long uv_offset = vid * 1000 - val * 10000; if (upper) { - uV_offset = clamp_val(uV_offset, 12500, 200000); - return (u8)((uV_offset / 12500 - 1) << 4); + uv_offset = clamp_val(uv_offset, 12500, 200000); + return (u8)((uv_offset / 12500 - 1) << 4); } else { - uV_offset = clamp_val(uV_offset, -400000, -25000); - return (u8)((uV_offset / -25000 - 1) << 0); + uv_offset = clamp_val(uv_offset, -400000, -25000); + return (u8)((uv_offset / -25000 - 1) << 0); } } @@ -818,8 +818,9 @@ static u8 lm93_read_byte(struct i2c_client *client, u8 reg) if (value >= 0) { return value; } else { - dev_warn(&client->dev, "lm93: read byte data failed, " - "address 0x%02x.\n", reg); + dev_warn(&client->dev, + "lm93: read byte data failed, address 0x%02x.\n", + reg); mdelay(i + 3); } @@ -838,8 +839,9 @@ static int lm93_write_byte(struct i2c_client *client, u8 reg, u8 value) result = i2c_smbus_write_byte_data(client, reg, value); if (result < 0) - dev_warn(&client->dev, "lm93: write byte data failed, " - "0x%02x at address 0x%02x.\n", value, reg); + dev_warn(&client->dev, + "lm93: write byte data failed, 0x%02x at address 0x%02x.\n", + value, reg); return result; } @@ -854,8 +856,9 @@ static u16 lm93_read_word(struct i2c_client *client, u8 reg) if (value >= 0) { return value; } else { - dev_warn(&client->dev, "lm93: read word data failed, " - "address 0x%02x.\n", reg); + dev_warn(&client->dev, + "lm93: read word data failed, address 0x%02x.\n", + reg); mdelay(i + 3); } @@ -874,8 +877,9 @@ static int lm93_write_word(struct i2c_client *client, u8 reg, u16 value) result = i2c_smbus_write_word_data(client, reg, value); if (result < 0) - dev_warn(&client->dev, "lm93: write word data failed, " - "0x%04x at address 0x%02x.\n", value, reg); + dev_warn(&client->dev, + "lm93: write word data failed, 0x%04x at address 0x%02x.\n", + value, reg); return result; } @@ -898,8 +902,8 @@ static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values) if (result == lm93_block_read_cmds[fbn].len) { break; } else { - dev_warn(&client->dev, "lm93: block read data failed, " - "command 0x%02x.\n", + dev_warn(&client->dev, + "lm93: block read data failed, command 0x%02x.\n", lm93_block_read_cmds[fbn].cmd); mdelay(i + 3); } @@ -2672,8 +2676,8 @@ static void lm93_init_client(struct i2c_client *client) return; } - dev_warn(&client->dev, "timed out waiting for sensor " - "chip to signal ready!\n"); + dev_warn(&client->dev, + "timed out waiting for sensor chip to signal ready!\n"); } /* Return 0 if detection is successful, -ENODEV otherwise */ @@ -2733,12 +2737,12 @@ static int lm93_probe(struct i2c_client *client, dev_dbg(&client->dev, "using SMBus block data transactions\n"); update = lm93_update_client_full; } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) { - dev_dbg(&client->dev, "disabled SMBus block data " - "transactions\n"); + dev_dbg(&client->dev, + "disabled SMBus block data transactions\n"); update = lm93_update_client_min; } else { - dev_dbg(&client->dev, "detect failed, " - "smbus byte and/or word data not supported!\n"); + dev_dbg(&client->dev, + "detect failed, smbus byte and/or word data not supported!\n"); return -ENODEV; } diff --git a/drivers/hwmon/lm95234.c b/drivers/hwmon/lm95234.c new file mode 100644 index 00000000000..307c9eaeeb9 --- /dev/null +++ b/drivers/hwmon/lm95234.c @@ -0,0 +1,769 @@ +/* + * Driver for Texas Instruments / National Semiconductor LM95234 + * + * Copyright (c) 2013 Guenter Roeck <linux@roeck-us.net> + * + * Derived from lm95241.c + * Copyright (C) 2008, 2010 Davide Rizzo <elpa.rizzo@gmail.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/jiffies.h> +#include <linux/i2c.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/err.h> +#include <linux/mutex.h> +#include <linux/sysfs.h> + +#define DRVNAME "lm95234" + +static const unsigned short normal_i2c[] = { 0x18, 0x4d, 0x4e, I2C_CLIENT_END }; + +/* LM95234 registers */ +#define LM95234_REG_MAN_ID 0xFE +#define LM95234_REG_CHIP_ID 0xFF +#define LM95234_REG_STATUS 0x02 +#define LM95234_REG_CONFIG 0x03 +#define LM95234_REG_CONVRATE 0x04 +#define LM95234_REG_STS_FAULT 0x07 +#define LM95234_REG_STS_TCRIT1 0x08 +#define LM95234_REG_STS_TCRIT2 0x09 +#define LM95234_REG_TEMPH(x) ((x) + 0x10) +#define LM95234_REG_TEMPL(x) ((x) + 0x20) +#define LM95234_REG_UTEMPH(x) ((x) + 0x19) /* Remote only */ +#define LM95234_REG_UTEMPL(x) ((x) + 0x29) +#define LM95234_REG_REM_MODEL 0x30 +#define LM95234_REG_REM_MODEL_STS 0x38 +#define LM95234_REG_OFFSET(x) ((x) + 0x31) /* Remote only */ +#define LM95234_REG_TCRIT1(x) ((x) + 0x40) +#define LM95234_REG_TCRIT2(x) ((x) + 0x49) /* Remote channel 1,2 */ +#define LM95234_REG_TCRIT_HYST 0x5a + +#define NATSEMI_MAN_ID 0x01 +#define LM95234_CHIP_ID 0x79 + +/* Client data (each client gets its own) */ +struct lm95234_data { + struct device *hwmon_dev; + struct mutex update_lock; + unsigned long last_updated, interval; /* in jiffies */ + bool valid; /* false until following fields are valid */ + /* registers values */ + int temp[5]; /* temperature (signed) */ + u32 status; /* fault/alarm status */ + u8 tcrit1[5]; /* critical temperature limit */ + u8 tcrit2[2]; /* high temperature limit */ + s8 toffset[4]; /* remote temperature offset */ + u8 thyst; /* common hysteresis */ + + u8 sensor_type; /* temperature sensor type */ +}; + +static int lm95234_read_temp(struct i2c_client *client, int index, int *t) +{ + int val; + u16 temp = 0; + + if (index) { + val = i2c_smbus_read_byte_data(client, + LM95234_REG_UTEMPH(index - 1)); + if (val < 0) + return val; + temp = val << 8; + val = i2c_smbus_read_byte_data(client, + LM95234_REG_UTEMPL(index - 1)); + if (val < 0) + return val; + temp |= val; + *t = temp; + } + /* + * Read signed temperature if unsigned temperature is 0, + * or if this is the local sensor. + */ + if (!temp) { + val = i2c_smbus_read_byte_data(client, + LM95234_REG_TEMPH(index)); + if (val < 0) + return val; + temp = val << 8; + val = i2c_smbus_read_byte_data(client, + LM95234_REG_TEMPL(index)); + if (val < 0) + return val; + temp |= val; + *t = (s16)temp; + } + return 0; +} + +static u16 update_intervals[] = { 143, 364, 1000, 2500 }; + +/* Fill value cache. Must be called with update lock held. */ + +static int lm95234_fill_cache(struct i2c_client *client) +{ + struct lm95234_data *data = i2c_get_clientdata(client); + int i, ret; + + ret = i2c_smbus_read_byte_data(client, LM95234_REG_CONVRATE); + if (ret < 0) + return ret; + + data->interval = msecs_to_jiffies(update_intervals[ret & 0x03]); + + for (i = 0; i < ARRAY_SIZE(data->tcrit1); i++) { + ret = i2c_smbus_read_byte_data(client, LM95234_REG_TCRIT1(i)); + if (ret < 0) + return ret; + data->tcrit1[i] = ret; + } + for (i = 0; i < ARRAY_SIZE(data->tcrit2); i++) { + ret = i2c_smbus_read_byte_data(client, LM95234_REG_TCRIT2(i)); + if (ret < 0) + return ret; + data->tcrit2[i] = ret; + } + for (i = 0; i < ARRAY_SIZE(data->toffset); i++) { + ret = i2c_smbus_read_byte_data(client, LM95234_REG_OFFSET(i)); + if (ret < 0) + return ret; + data->toffset[i] = ret; + } + + ret = i2c_smbus_read_byte_data(client, LM95234_REG_TCRIT_HYST); + if (ret < 0) + return ret; + data->thyst = ret; + + ret = i2c_smbus_read_byte_data(client, LM95234_REG_REM_MODEL); + if (ret < 0) + return ret; + data->sensor_type = ret; + + return 0; +} + +static int lm95234_update_device(struct i2c_client *client, + struct lm95234_data *data) +{ + int ret; + + mutex_lock(&data->update_lock); + + if (time_after(jiffies, data->last_updated + data->interval) || + !data->valid) { + int i; + + if (!data->valid) { + ret = lm95234_fill_cache(client); + if (ret < 0) + goto abort; + } + + data->valid = false; + for (i = 0; i < ARRAY_SIZE(data->temp); i++) { + ret = lm95234_read_temp(client, i, &data->temp[i]); + if (ret < 0) + goto abort; + } + + ret = i2c_smbus_read_byte_data(client, LM95234_REG_STS_FAULT); + if (ret < 0) + goto abort; + data->status = ret; + + ret = i2c_smbus_read_byte_data(client, LM95234_REG_STS_TCRIT1); + if (ret < 0) + goto abort; + data->status |= ret << 8; + + ret = i2c_smbus_read_byte_data(client, LM95234_REG_STS_TCRIT2); + if (ret < 0) + goto abort; + data->status |= ret << 16; + + data->last_updated = jiffies; + data->valid = true; + } + ret = 0; +abort: + mutex_unlock(&data->update_lock); + + return ret; +} + +static ssize_t show_temp(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + int index = to_sensor_dev_attr(attr)->index; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + return sprintf(buf, "%d\n", + DIV_ROUND_CLOSEST(data->temp[index] * 125, 32)); +} + +static ssize_t show_alarm(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + u32 mask = to_sensor_dev_attr(attr)->index; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + return sprintf(buf, "%u", !!(data->status & mask)); +} + +static ssize_t show_type(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + u8 mask = to_sensor_dev_attr(attr)->index; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + return sprintf(buf, data->sensor_type & mask ? "1\n" : "2\n"); +} + +static ssize_t set_type(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + unsigned long val; + u8 mask = to_sensor_dev_attr(attr)->index; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + ret = kstrtoul(buf, 10, &val); + if (ret < 0) + return ret; + + if (val != 1 && val != 2) + return -EINVAL; + + mutex_lock(&data->update_lock); + if (val == 1) + data->sensor_type |= mask; + else + data->sensor_type &= ~mask; + data->valid = false; + i2c_smbus_write_byte_data(client, LM95234_REG_REM_MODEL, + data->sensor_type); + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t show_tcrit2(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + int index = to_sensor_dev_attr(attr)->index; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + return sprintf(buf, "%u", data->tcrit2[index] * 1000); +} + +static ssize_t set_tcrit2(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + int index = to_sensor_dev_attr(attr)->index; + long val; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + ret = kstrtol(buf, 10, &val); + if (ret < 0) + return ret; + + val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, index ? 255 : 127); + + mutex_lock(&data->update_lock); + data->tcrit2[index] = val; + i2c_smbus_write_byte_data(client, LM95234_REG_TCRIT2(index), val); + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t show_tcrit2_hyst(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + int index = to_sensor_dev_attr(attr)->index; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + /* Result can be negative, so be careful with unsigned operands */ + return sprintf(buf, "%d", + ((int)data->tcrit2[index] - (int)data->thyst) * 1000); +} + +static ssize_t show_tcrit1(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + int index = to_sensor_dev_attr(attr)->index; + + return sprintf(buf, "%u", data->tcrit1[index] * 1000); +} + +static ssize_t set_tcrit1(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + int index = to_sensor_dev_attr(attr)->index; + long val; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + ret = kstrtol(buf, 10, &val); + if (ret < 0) + return ret; + + val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 255); + + mutex_lock(&data->update_lock); + data->tcrit1[index] = val; + i2c_smbus_write_byte_data(client, LM95234_REG_TCRIT1(index), val); + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t show_tcrit1_hyst(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + int index = to_sensor_dev_attr(attr)->index; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + /* Result can be negative, so be careful with unsigned operands */ + return sprintf(buf, "%d", + ((int)data->tcrit1[index] - (int)data->thyst) * 1000); +} + +static ssize_t set_tcrit1_hyst(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + int index = to_sensor_dev_attr(attr)->index; + long val; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + ret = kstrtol(buf, 10, &val); + if (ret < 0) + return ret; + + val = DIV_ROUND_CLOSEST(val, 1000); + val = clamp_val((int)data->tcrit1[index] - val, 0, 31); + + mutex_lock(&data->update_lock); + data->thyst = val; + i2c_smbus_write_byte_data(client, LM95234_REG_TCRIT_HYST, val); + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t show_offset(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + int index = to_sensor_dev_attr(attr)->index; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + return sprintf(buf, "%d", data->toffset[index] * 500); +} + +static ssize_t set_offset(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + int index = to_sensor_dev_attr(attr)->index; + long val; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + ret = kstrtol(buf, 10, &val); + if (ret < 0) + return ret; + + /* Accuracy is 1/2 degrees C */ + val = clamp_val(DIV_ROUND_CLOSEST(val, 500), -128, 127); + + mutex_lock(&data->update_lock); + data->toffset[index] = val; + i2c_smbus_write_byte_data(client, LM95234_REG_OFFSET(index), val); + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t show_interval(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + return sprintf(buf, "%lu\n", + DIV_ROUND_CLOSEST(data->interval * 1000, HZ)); +} + +static ssize_t set_interval(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct lm95234_data *data = i2c_get_clientdata(client); + unsigned long val; + u8 regval; + int ret = lm95234_update_device(client, data); + + if (ret) + return ret; + + ret = kstrtoul(buf, 10, &val); + if (ret < 0) + return ret; + + for (regval = 0; regval < 3; regval++) { + if (val <= update_intervals[regval]) + break; + } + + mutex_lock(&data->update_lock); + data->interval = msecs_to_jiffies(update_intervals[regval]); + i2c_smbus_write_byte_data(client, LM95234_REG_CONVRATE, regval); + mutex_unlock(&data->update_lock); + + return count; +} + +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); +static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); +static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4); + +static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, + BIT(0) | BIT(1)); +static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, + BIT(2) | BIT(3)); +static SENSOR_DEVICE_ATTR(temp4_fault, S_IRUGO, show_alarm, NULL, + BIT(4) | BIT(5)); +static SENSOR_DEVICE_ATTR(temp5_fault, S_IRUGO, show_alarm, NULL, + BIT(6) | BIT(7)); + +static SENSOR_DEVICE_ATTR(temp2_type, S_IWUSR | S_IRUGO, show_type, set_type, + BIT(1)); +static SENSOR_DEVICE_ATTR(temp3_type, S_IWUSR | S_IRUGO, show_type, set_type, + BIT(2)); +static SENSOR_DEVICE_ATTR(temp4_type, S_IWUSR | S_IRUGO, show_type, set_type, + BIT(3)); +static SENSOR_DEVICE_ATTR(temp5_type, S_IWUSR | S_IRUGO, show_type, set_type, + BIT(4)); + +static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_tcrit1, + set_tcrit1, 0); +static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_tcrit2, + set_tcrit2, 0); +static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_tcrit2, + set_tcrit2, 1); +static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_tcrit1, + set_tcrit1, 3); +static SENSOR_DEVICE_ATTR(temp5_max, S_IWUSR | S_IRUGO, show_tcrit1, + set_tcrit1, 4); + +static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, show_tcrit1_hyst, + set_tcrit1_hyst, 0); +static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO, show_tcrit2_hyst, NULL, 0); +static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IRUGO, show_tcrit2_hyst, NULL, 1); +static SENSOR_DEVICE_ATTR(temp4_max_hyst, S_IRUGO, show_tcrit1_hyst, NULL, 3); +static SENSOR_DEVICE_ATTR(temp5_max_hyst, S_IRUGO, show_tcrit1_hyst, NULL, 4); + +static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, + BIT(0 + 8)); +static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, + BIT(1 + 16)); +static SENSOR_DEVICE_ATTR(temp3_max_alarm, S_IRUGO, show_alarm, NULL, + BIT(2 + 16)); +static SENSOR_DEVICE_ATTR(temp4_max_alarm, S_IRUGO, show_alarm, NULL, + BIT(3 + 8)); +static SENSOR_DEVICE_ATTR(temp5_max_alarm, S_IRUGO, show_alarm, NULL, + BIT(4 + 8)); + +static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_tcrit1, + set_tcrit1, 1); +static SENSOR_DEVICE_ATTR(temp3_crit, S_IWUSR | S_IRUGO, show_tcrit1, + set_tcrit1, 2); + +static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_tcrit1_hyst, NULL, 1); +static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO, show_tcrit1_hyst, NULL, 2); + +static SENSOR_DEVICE_ATTR(temp2_crit_alarm, S_IRUGO, show_alarm, NULL, + BIT(1 + 8)); +static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, + BIT(2 + 8)); + +static SENSOR_DEVICE_ATTR(temp2_offset, S_IWUSR | S_IRUGO, show_offset, + set_offset, 0); +static SENSOR_DEVICE_ATTR(temp3_offset, S_IWUSR | S_IRUGO, show_offset, + set_offset, 1); +static SENSOR_DEVICE_ATTR(temp4_offset, S_IWUSR | S_IRUGO, show_offset, + set_offset, 2); +static SENSOR_DEVICE_ATTR(temp5_offset, S_IWUSR | S_IRUGO, show_offset, + set_offset, 3); + +static DEVICE_ATTR(update_interval, S_IWUSR | S_IRUGO, show_interval, + set_interval); + +static struct attribute *lm95234_attributes[] = { + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp2_input.dev_attr.attr, + &sensor_dev_attr_temp3_input.dev_attr.attr, + &sensor_dev_attr_temp4_input.dev_attr.attr, + &sensor_dev_attr_temp5_input.dev_attr.attr, + &sensor_dev_attr_temp2_fault.dev_attr.attr, + &sensor_dev_attr_temp3_fault.dev_attr.attr, + &sensor_dev_attr_temp4_fault.dev_attr.attr, + &sensor_dev_attr_temp5_fault.dev_attr.attr, + &sensor_dev_attr_temp2_type.dev_attr.attr, + &sensor_dev_attr_temp3_type.dev_attr.attr, + &sensor_dev_attr_temp4_type.dev_attr.attr, + &sensor_dev_attr_temp5_type.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + &sensor_dev_attr_temp2_max.dev_attr.attr, + &sensor_dev_attr_temp3_max.dev_attr.attr, + &sensor_dev_attr_temp4_max.dev_attr.attr, + &sensor_dev_attr_temp5_max.dev_attr.attr, + &sensor_dev_attr_temp1_max_hyst.dev_attr.attr, + &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, + &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, + &sensor_dev_attr_temp4_max_hyst.dev_attr.attr, + &sensor_dev_attr_temp5_max_hyst.dev_attr.attr, + &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp5_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_crit.dev_attr.attr, + &sensor_dev_attr_temp3_crit.dev_attr.attr, + &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr, + &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr, + &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_offset.dev_attr.attr, + &sensor_dev_attr_temp3_offset.dev_attr.attr, + &sensor_dev_attr_temp4_offset.dev_attr.attr, + &sensor_dev_attr_temp5_offset.dev_attr.attr, + &dev_attr_update_interval.attr, + NULL +}; + +static const struct attribute_group lm95234_group = { + .attrs = lm95234_attributes, +}; + +static int lm95234_detect(struct i2c_client *client, + struct i2c_board_info *info) +{ + struct i2c_adapter *adapter = client->adapter; + int mfg_id, chip_id, val; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) + return -ENODEV; + + mfg_id = i2c_smbus_read_byte_data(client, LM95234_REG_MAN_ID); + if (mfg_id != NATSEMI_MAN_ID) + return -ENODEV; + + chip_id = i2c_smbus_read_byte_data(client, LM95234_REG_CHIP_ID); + if (chip_id != LM95234_CHIP_ID) + return -ENODEV; + + val = i2c_smbus_read_byte_data(client, LM95234_REG_STATUS); + if (val & 0x30) + return -ENODEV; + + val = i2c_smbus_read_byte_data(client, LM95234_REG_CONFIG); + if (val & 0xbc) + return -ENODEV; + + val = i2c_smbus_read_byte_data(client, LM95234_REG_CONVRATE); + if (val & 0xfc) + return -ENODEV; + + val = i2c_smbus_read_byte_data(client, LM95234_REG_REM_MODEL); + if (val & 0xe1) + return -ENODEV; + + val = i2c_smbus_read_byte_data(client, LM95234_REG_REM_MODEL_STS); + if (val & 0xe1) + return -ENODEV; + + strlcpy(info->type, "lm95234", I2C_NAME_SIZE); + return 0; +} + +static int lm95234_init_client(struct i2c_client *client) +{ + int val, model; + + /* start conversion if necessary */ + val = i2c_smbus_read_byte_data(client, LM95234_REG_CONFIG); + if (val < 0) + return val; + if (val & 0x40) + i2c_smbus_write_byte_data(client, LM95234_REG_CONFIG, + val & ~0x40); + + /* If diode type status reports an error, try to fix it */ + val = i2c_smbus_read_byte_data(client, LM95234_REG_REM_MODEL_STS); + if (val < 0) + return val; + model = i2c_smbus_read_byte_data(client, LM95234_REG_REM_MODEL); + if (model < 0) + return model; + if (model & val) { + dev_notice(&client->dev, + "Fixing remote diode type misconfiguration (0x%x)\n", + val); + i2c_smbus_write_byte_data(client, LM95234_REG_REM_MODEL, + model & ~val); + } + return 0; +} + +static int lm95234_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct lm95234_data *data; + int err; + + data = devm_kzalloc(dev, sizeof(struct lm95234_data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + i2c_set_clientdata(client, data); + mutex_init(&data->update_lock); + + /* Initialize the LM95234 chip */ + err = lm95234_init_client(client); + if (err < 0) + return err; + + /* Register sysfs hooks */ + err = sysfs_create_group(&dev->kobj, &lm95234_group); + if (err) + return err; + + data->hwmon_dev = hwmon_device_register(dev); + if (IS_ERR(data->hwmon_dev)) { + err = PTR_ERR(data->hwmon_dev); + goto exit_remove_files; + } + + return 0; + +exit_remove_files: + sysfs_remove_group(&dev->kobj, &lm95234_group); + return err; +} + +static int lm95234_remove(struct i2c_client *client) +{ + struct lm95234_data *data = i2c_get_clientdata(client); + + hwmon_device_unregister(data->hwmon_dev); + sysfs_remove_group(&client->dev.kobj, &lm95234_group); + + return 0; +} + +/* Driver data (common to all clients) */ +static const struct i2c_device_id lm95234_id[] = { + { "lm95234", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, lm95234_id); + +static struct i2c_driver lm95234_driver = { + .class = I2C_CLASS_HWMON, + .driver = { + .name = DRVNAME, + }, + .probe = lm95234_probe, + .remove = lm95234_remove, + .id_table = lm95234_id, + .detect = lm95234_detect, + .address_list = normal_i2c, +}; + +module_i2c_driver(lm95234_driver); + +MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); +MODULE_DESCRIPTION("LM95234 sensor driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/ltc4151.c b/drivers/hwmon/ltc4151.c index 4319a94f549..af81be1237c 100644 --- a/drivers/hwmon/ltc4151.c +++ b/drivers/hwmon/ltc4151.c @@ -146,14 +146,14 @@ static ssize_t ltc4151_show_value(struct device *dev, /* * Input voltages. */ -static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, \ - ltc4151_show_value, NULL, LTC4151_VIN_H); -static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, \ - ltc4151_show_value, NULL, LTC4151_ADIN_H); +static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, ltc4151_show_value, NULL, + LTC4151_VIN_H); +static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, ltc4151_show_value, NULL, + LTC4151_ADIN_H); /* Currents (via sense resistor) */ -static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, \ - ltc4151_show_value, NULL, LTC4151_SENSE_H); +static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, ltc4151_show_value, NULL, + LTC4151_SENSE_H); /* * Finally, construct an array of pointers to members of the above objects, diff --git a/drivers/hwmon/ltc4215.c b/drivers/hwmon/ltc4215.c index e8876108a6b..8a142960d69 100644 --- a/drivers/hwmon/ltc4215.c +++ b/drivers/hwmon/ltc4215.c @@ -172,12 +172,12 @@ static ssize_t ltc4215_show_alarm(struct device *dev, struct device_attribute *da, char *buf) { - struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(da); + struct sensor_device_attribute *attr = to_sensor_dev_attr(da); struct ltc4215_data *data = ltc4215_update_device(dev); - const u8 reg = data->regs[attr->index]; - const u32 mask = attr->nr; + const u8 reg = data->regs[LTC4215_STATUS]; + const u32 mask = attr->index; - return snprintf(buf, PAGE_SIZE, "%u\n", (reg & mask) ? 1 : 0); + return snprintf(buf, PAGE_SIZE, "%u\n", !!(reg & mask)); } /* @@ -186,39 +186,29 @@ static ssize_t ltc4215_show_alarm(struct device *dev, * for each register. */ -#define LTC4215_VOLTAGE(name, ltc4215_cmd_idx) \ - static SENSOR_DEVICE_ATTR(name, S_IRUGO, \ - ltc4215_show_voltage, NULL, ltc4215_cmd_idx) - -#define LTC4215_CURRENT(name) \ - static SENSOR_DEVICE_ATTR(name, S_IRUGO, \ - ltc4215_show_current, NULL, 0); - -#define LTC4215_POWER(name) \ - static SENSOR_DEVICE_ATTR(name, S_IRUGO, \ - ltc4215_show_power, NULL, 0); - -#define LTC4215_ALARM(name, mask, reg) \ - static SENSOR_DEVICE_ATTR_2(name, S_IRUGO, \ - ltc4215_show_alarm, NULL, (mask), reg) - /* Construct a sensor_device_attribute structure for each register */ /* Current */ -LTC4215_CURRENT(curr1_input); -LTC4215_ALARM(curr1_max_alarm, (1 << 2), LTC4215_STATUS); +static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, ltc4215_show_current, NULL, 0); +static SENSOR_DEVICE_ATTR(curr1_max_alarm, S_IRUGO, ltc4215_show_alarm, NULL, + 1 << 2); /* Power (virtual) */ -LTC4215_POWER(power1_input); +static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO, ltc4215_show_power, NULL, 0); /* Input Voltage */ -LTC4215_VOLTAGE(in1_input, LTC4215_ADIN); -LTC4215_ALARM(in1_max_alarm, (1 << 0), LTC4215_STATUS); -LTC4215_ALARM(in1_min_alarm, (1 << 1), LTC4215_STATUS); +static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, ltc4215_show_voltage, NULL, + LTC4215_ADIN); +static SENSOR_DEVICE_ATTR(in1_max_alarm, S_IRUGO, ltc4215_show_alarm, NULL, + 1 << 0); +static SENSOR_DEVICE_ATTR(in1_min_alarm, S_IRUGO, ltc4215_show_alarm, NULL, + 1 << 1); /* Output Voltage */ -LTC4215_VOLTAGE(in2_input, LTC4215_SOURCE); -LTC4215_ALARM(in2_min_alarm, (1 << 3), LTC4215_STATUS); +static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, ltc4215_show_voltage, NULL, + LTC4215_SOURCE); +static SENSOR_DEVICE_ATTR(in2_min_alarm, S_IRUGO, ltc4215_show_alarm, NULL, + 1 << 3); /* * Finally, construct an array of pointers to members of the above objects, diff --git a/drivers/hwmon/ltc4245.c b/drivers/hwmon/ltc4245.c index 3653f79dc2d..cdc1ecc6734 100644 --- a/drivers/hwmon/ltc4245.c +++ b/drivers/hwmon/ltc4245.c @@ -319,80 +319,82 @@ static ssize_t ltc4245_show_gpio(struct device *dev, return snprintf(buf, PAGE_SIZE, "%u\n", val * 10); } -/* - * These macros are used below in constructing device attribute objects - * for use with sysfs_create_group() to make a sysfs device file - * for each register. - */ - -#define LTC4245_VOLTAGE(name, ltc4245_cmd_idx) \ - static SENSOR_DEVICE_ATTR(name, S_IRUGO, \ - ltc4245_show_voltage, NULL, ltc4245_cmd_idx) - -#define LTC4245_CURRENT(name, ltc4245_cmd_idx) \ - static SENSOR_DEVICE_ATTR(name, S_IRUGO, \ - ltc4245_show_current, NULL, ltc4245_cmd_idx) - -#define LTC4245_POWER(name, ltc4245_cmd_idx) \ - static SENSOR_DEVICE_ATTR(name, S_IRUGO, \ - ltc4245_show_power, NULL, ltc4245_cmd_idx) - -#define LTC4245_ALARM(name, mask, reg) \ - static SENSOR_DEVICE_ATTR_2(name, S_IRUGO, \ - ltc4245_show_alarm, NULL, (mask), reg) - -#define LTC4245_GPIO_VOLTAGE(name, gpio_num) \ - static SENSOR_DEVICE_ATTR(name, S_IRUGO, \ - ltc4245_show_gpio, NULL, gpio_num) - /* Construct a sensor_device_attribute structure for each register */ /* Input voltages */ -LTC4245_VOLTAGE(in1_input, LTC4245_12VIN); -LTC4245_VOLTAGE(in2_input, LTC4245_5VIN); -LTC4245_VOLTAGE(in3_input, LTC4245_3VIN); -LTC4245_VOLTAGE(in4_input, LTC4245_VEEIN); +static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, ltc4245_show_voltage, NULL, + LTC4245_12VIN); +static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, ltc4245_show_voltage, NULL, + LTC4245_5VIN); +static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, ltc4245_show_voltage, NULL, + LTC4245_3VIN); +static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, ltc4245_show_voltage, NULL, + LTC4245_VEEIN); /* Input undervoltage alarms */ -LTC4245_ALARM(in1_min_alarm, (1 << 0), LTC4245_FAULT1); -LTC4245_ALARM(in2_min_alarm, (1 << 1), LTC4245_FAULT1); -LTC4245_ALARM(in3_min_alarm, (1 << 2), LTC4245_FAULT1); -LTC4245_ALARM(in4_min_alarm, (1 << 3), LTC4245_FAULT1); +static SENSOR_DEVICE_ATTR_2(in1_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL, + 1 << 0, LTC4245_FAULT1); +static SENSOR_DEVICE_ATTR_2(in2_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL, + 1 << 1, LTC4245_FAULT1); +static SENSOR_DEVICE_ATTR_2(in3_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL, + 1 << 2, LTC4245_FAULT1); +static SENSOR_DEVICE_ATTR_2(in4_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL, + 1 << 3, LTC4245_FAULT1); /* Currents (via sense resistor) */ -LTC4245_CURRENT(curr1_input, LTC4245_12VSENSE); -LTC4245_CURRENT(curr2_input, LTC4245_5VSENSE); -LTC4245_CURRENT(curr3_input, LTC4245_3VSENSE); -LTC4245_CURRENT(curr4_input, LTC4245_VEESENSE); +static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, ltc4245_show_current, NULL, + LTC4245_12VSENSE); +static SENSOR_DEVICE_ATTR(curr2_input, S_IRUGO, ltc4245_show_current, NULL, + LTC4245_5VSENSE); +static SENSOR_DEVICE_ATTR(curr3_input, S_IRUGO, ltc4245_show_current, NULL, + LTC4245_3VSENSE); +static SENSOR_DEVICE_ATTR(curr4_input, S_IRUGO, ltc4245_show_current, NULL, + LTC4245_VEESENSE); /* Overcurrent alarms */ -LTC4245_ALARM(curr1_max_alarm, (1 << 4), LTC4245_FAULT1); -LTC4245_ALARM(curr2_max_alarm, (1 << 5), LTC4245_FAULT1); -LTC4245_ALARM(curr3_max_alarm, (1 << 6), LTC4245_FAULT1); -LTC4245_ALARM(curr4_max_alarm, (1 << 7), LTC4245_FAULT1); +static SENSOR_DEVICE_ATTR_2(curr1_max_alarm, S_IRUGO, ltc4245_show_alarm, NULL, + 1 << 4, LTC4245_FAULT1); +static SENSOR_DEVICE_ATTR_2(curr2_max_alarm, S_IRUGO, ltc4245_show_alarm, NULL, + 1 << 5, LTC4245_FAULT1); +static SENSOR_DEVICE_ATTR_2(curr3_max_alarm, S_IRUGO, ltc4245_show_alarm, NULL, + 1 << 6, LTC4245_FAULT1); +static SENSOR_DEVICE_ATTR_2(curr4_max_alarm, S_IRUGO, ltc4245_show_alarm, NULL, + 1 << 7, LTC4245_FAULT1); /* Output voltages */ -LTC4245_VOLTAGE(in5_input, LTC4245_12VOUT); -LTC4245_VOLTAGE(in6_input, LTC4245_5VOUT); -LTC4245_VOLTAGE(in7_input, LTC4245_3VOUT); -LTC4245_VOLTAGE(in8_input, LTC4245_VEEOUT); +static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, ltc4245_show_voltage, NULL, + LTC4245_12VOUT); +static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, ltc4245_show_voltage, NULL, + LTC4245_5VOUT); +static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, ltc4245_show_voltage, NULL, + LTC4245_3VOUT); +static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, ltc4245_show_voltage, NULL, + LTC4245_VEEOUT); /* Power Bad alarms */ -LTC4245_ALARM(in5_min_alarm, (1 << 0), LTC4245_FAULT2); -LTC4245_ALARM(in6_min_alarm, (1 << 1), LTC4245_FAULT2); -LTC4245_ALARM(in7_min_alarm, (1 << 2), LTC4245_FAULT2); -LTC4245_ALARM(in8_min_alarm, (1 << 3), LTC4245_FAULT2); +static SENSOR_DEVICE_ATTR_2(in5_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL, + 1 << 0, LTC4245_FAULT2); +static SENSOR_DEVICE_ATTR_2(in6_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL, + 1 << 1, LTC4245_FAULT2); +static SENSOR_DEVICE_ATTR_2(in7_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL, + 1 << 2, LTC4245_FAULT2); +static SENSOR_DEVICE_ATTR_2(in8_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL, + 1 << 3, LTC4245_FAULT2); /* GPIO voltages */ -LTC4245_GPIO_VOLTAGE(in9_input, 0); -LTC4245_GPIO_VOLTAGE(in10_input, 1); -LTC4245_GPIO_VOLTAGE(in11_input, 2); +static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, ltc4245_show_gpio, NULL, 0); +static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, ltc4245_show_gpio, NULL, 1); +static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, ltc4245_show_gpio, NULL, 2); /* Power Consumption (virtual) */ -LTC4245_POWER(power1_input, LTC4245_12VSENSE); -LTC4245_POWER(power2_input, LTC4245_5VSENSE); -LTC4245_POWER(power3_input, LTC4245_3VSENSE); -LTC4245_POWER(power4_input, LTC4245_VEESENSE); +static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO, ltc4245_show_power, NULL, + LTC4245_12VSENSE); +static SENSOR_DEVICE_ATTR(power2_input, S_IRUGO, ltc4245_show_power, NULL, + LTC4245_5VSENSE); +static SENSOR_DEVICE_ATTR(power3_input, S_IRUGO, ltc4245_show_power, NULL, + LTC4245_3VSENSE); +static SENSOR_DEVICE_ATTR(power4_input, S_IRUGO, ltc4245_show_power, NULL, + LTC4245_VEESENSE); /* * Finally, construct an array of pointers to members of the above objects, diff --git a/drivers/hwmon/ltc4261.c b/drivers/hwmon/ltc4261.c index 84a2d2872b2..487da58ec86 100644 --- a/drivers/hwmon/ltc4261.c +++ b/drivers/hwmon/ltc4261.c @@ -165,24 +165,12 @@ static ssize_t ltc4261_show_bool(struct device *dev, } /* - * These macros are used below in constructing device attribute objects - * for use with sysfs_create_group() to make a sysfs device file - * for each register. - */ - -#define LTC4261_VALUE(name, ltc4261_cmd_idx) \ - static SENSOR_DEVICE_ATTR(name, S_IRUGO, \ - ltc4261_show_value, NULL, ltc4261_cmd_idx) - -#define LTC4261_BOOL(name, mask) \ - static SENSOR_DEVICE_ATTR(name, S_IRUGO, \ - ltc4261_show_bool, NULL, (mask)) - -/* * Input voltages. */ -LTC4261_VALUE(in1_input, LTC4261_ADIN_H); -LTC4261_VALUE(in2_input, LTC4261_ADIN2_H); +static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, ltc4261_show_value, NULL, + LTC4261_ADIN_H); +static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, ltc4261_show_value, NULL, + LTC4261_ADIN2_H); /* * Voltage alarms. The chip has only one set of voltage alarm status bits, @@ -192,16 +180,22 @@ LTC4261_VALUE(in2_input, LTC4261_ADIN2_H); * To ensure that the alarm condition is reported to the user, report it * with both voltage sensors. */ -LTC4261_BOOL(in1_min_alarm, FAULT_UV); -LTC4261_BOOL(in1_max_alarm, FAULT_OV); -LTC4261_BOOL(in2_min_alarm, FAULT_UV); -LTC4261_BOOL(in2_max_alarm, FAULT_OV); +static SENSOR_DEVICE_ATTR(in1_min_alarm, S_IRUGO, ltc4261_show_bool, NULL, + FAULT_UV); +static SENSOR_DEVICE_ATTR(in1_max_alarm, S_IRUGO, ltc4261_show_bool, NULL, + FAULT_OV); +static SENSOR_DEVICE_ATTR(in2_min_alarm, S_IRUGO, ltc4261_show_bool, NULL, + FAULT_UV); +static SENSOR_DEVICE_ATTR(in2_max_alarm, S_IRUGO, ltc4261_show_bool, NULL, + FAULT_OV); /* Currents (via sense resistor) */ -LTC4261_VALUE(curr1_input, LTC4261_SENSE_H); +static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, ltc4261_show_value, NULL, + LTC4261_SENSE_H); /* Overcurrent alarm */ -LTC4261_BOOL(curr1_max_alarm, FAULT_OC); +static SENSOR_DEVICE_ATTR(curr1_max_alarm, S_IRUGO, ltc4261_show_bool, NULL, + FAULT_OC); static struct attribute *ltc4261_attributes[] = { &sensor_dev_attr_in1_input.dev_attr.attr, diff --git a/drivers/hwmon/max6697.c b/drivers/hwmon/max6697.c index bf4aa3777fc..328fb0353c1 100644 --- a/drivers/hwmon/max6697.c +++ b/drivers/hwmon/max6697.c @@ -399,82 +399,95 @@ static SENSOR_DEVICE_ATTR(temp6_fault, S_IRUGO, show_alarm, NULL, 5); static SENSOR_DEVICE_ATTR(temp7_fault, S_IRUGO, show_alarm, NULL, 6); static SENSOR_DEVICE_ATTR(temp8_fault, S_IRUGO, show_alarm, NULL, 7); -static struct attribute *max6697_attributes[8][7] = { - { - &sensor_dev_attr_temp1_input.dev_attr.attr, - &sensor_dev_attr_temp1_max.dev_attr.attr, - &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp1_crit.dev_attr.attr, - &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, - NULL - }, { - &sensor_dev_attr_temp2_input.dev_attr.attr, - &sensor_dev_attr_temp2_max.dev_attr.attr, - &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_crit.dev_attr.attr, - &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp2_fault.dev_attr.attr, - NULL - }, { - &sensor_dev_attr_temp3_input.dev_attr.attr, - &sensor_dev_attr_temp3_max.dev_attr.attr, - &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_crit.dev_attr.attr, - &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp3_fault.dev_attr.attr, - NULL - }, { - &sensor_dev_attr_temp4_input.dev_attr.attr, - &sensor_dev_attr_temp4_max.dev_attr.attr, - &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp4_crit.dev_attr.attr, - &sensor_dev_attr_temp4_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp4_fault.dev_attr.attr, - NULL - }, { - &sensor_dev_attr_temp5_input.dev_attr.attr, - &sensor_dev_attr_temp5_max.dev_attr.attr, - &sensor_dev_attr_temp5_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp5_crit.dev_attr.attr, - &sensor_dev_attr_temp5_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp5_fault.dev_attr.attr, - NULL - }, { - &sensor_dev_attr_temp6_input.dev_attr.attr, - &sensor_dev_attr_temp6_max.dev_attr.attr, - &sensor_dev_attr_temp6_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp6_crit.dev_attr.attr, - &sensor_dev_attr_temp6_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp6_fault.dev_attr.attr, - NULL - }, { - &sensor_dev_attr_temp7_input.dev_attr.attr, - &sensor_dev_attr_temp7_max.dev_attr.attr, - &sensor_dev_attr_temp7_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp7_crit.dev_attr.attr, - &sensor_dev_attr_temp7_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp7_fault.dev_attr.attr, - NULL - }, { - &sensor_dev_attr_temp8_input.dev_attr.attr, - &sensor_dev_attr_temp8_max.dev_attr.attr, - &sensor_dev_attr_temp8_max_alarm.dev_attr.attr, - &sensor_dev_attr_temp8_crit.dev_attr.attr, - &sensor_dev_attr_temp8_crit_alarm.dev_attr.attr, - &sensor_dev_attr_temp8_fault.dev_attr.attr, - NULL - } +static DEVICE_ATTR(dummy, 0, NULL, NULL); + +static umode_t max6697_is_visible(struct kobject *kobj, struct attribute *attr, + int index) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct i2c_client *client = to_i2c_client(dev); + struct max6697_data *data = i2c_get_clientdata(client); + const struct max6697_chip_data *chip = data->chip; + int channel = index / 6; /* channel number */ + int nr = index % 6; /* attribute index within channel */ + + if (channel >= chip->channels) + return 0; + + if ((nr == 3 || nr == 4) && !(chip->have_crit & (1 << channel))) + return 0; + if (nr == 5 && !(chip->have_fault & (1 << channel))) + return 0; + + return attr->mode; +} + +/* + * max6697_is_visible uses the index into the following array to determine + * if attributes should be created or not. Any change in order or content + * must be matched in max6697_is_visible. + */ +static struct attribute *max6697_attributes[] = { + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_crit.dev_attr.attr, + &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, + &dev_attr_dummy.attr, + + &sensor_dev_attr_temp2_input.dev_attr.attr, + &sensor_dev_attr_temp2_max.dev_attr.attr, + &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_crit.dev_attr.attr, + &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_fault.dev_attr.attr, + + &sensor_dev_attr_temp3_input.dev_attr.attr, + &sensor_dev_attr_temp3_max.dev_attr.attr, + &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_crit.dev_attr.attr, + &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_fault.dev_attr.attr, + + &sensor_dev_attr_temp4_input.dev_attr.attr, + &sensor_dev_attr_temp4_max.dev_attr.attr, + &sensor_dev_attr_temp4_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp4_crit.dev_attr.attr, + &sensor_dev_attr_temp4_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp4_fault.dev_attr.attr, + + &sensor_dev_attr_temp5_input.dev_attr.attr, + &sensor_dev_attr_temp5_max.dev_attr.attr, + &sensor_dev_attr_temp5_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp5_crit.dev_attr.attr, + &sensor_dev_attr_temp5_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp5_fault.dev_attr.attr, + + &sensor_dev_attr_temp6_input.dev_attr.attr, + &sensor_dev_attr_temp6_max.dev_attr.attr, + &sensor_dev_attr_temp6_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp6_crit.dev_attr.attr, + &sensor_dev_attr_temp6_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp6_fault.dev_attr.attr, + + &sensor_dev_attr_temp7_input.dev_attr.attr, + &sensor_dev_attr_temp7_max.dev_attr.attr, + &sensor_dev_attr_temp7_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp7_crit.dev_attr.attr, + &sensor_dev_attr_temp7_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp7_fault.dev_attr.attr, + + &sensor_dev_attr_temp8_input.dev_attr.attr, + &sensor_dev_attr_temp8_max.dev_attr.attr, + &sensor_dev_attr_temp8_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp8_crit.dev_attr.attr, + &sensor_dev_attr_temp8_crit_alarm.dev_attr.attr, + &sensor_dev_attr_temp8_fault.dev_attr.attr, + NULL }; -static const struct attribute_group max6697_group[8] = { - { .attrs = max6697_attributes[0] }, - { .attrs = max6697_attributes[1] }, - { .attrs = max6697_attributes[2] }, - { .attrs = max6697_attributes[3] }, - { .attrs = max6697_attributes[4] }, - { .attrs = max6697_attributes[5] }, - { .attrs = max6697_attributes[6] }, - { .attrs = max6697_attributes[7] }, +static const struct attribute_group max6697_group = { + .attrs = max6697_attributes, .is_visible = max6697_is_visible, }; static void max6697_get_config_of(struct device_node *node, @@ -606,21 +619,13 @@ done: return 0; } -static void max6697_remove_files(struct i2c_client *client) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(max6697_group); i++) - sysfs_remove_group(&client->dev.kobj, &max6697_group[i]); -} - static int max6697_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct i2c_adapter *adapter = client->adapter; struct device *dev = &client->dev; struct max6697_data *data; - int i, err; + int err; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -ENODEV; @@ -639,37 +644,9 @@ static int max6697_probe(struct i2c_client *client, if (err) return err; - for (i = 0; i < data->chip->channels; i++) { - err = sysfs_create_file(&dev->kobj, - max6697_attributes[i][0]); - if (err) - goto error; - err = sysfs_create_file(&dev->kobj, - max6697_attributes[i][1]); - if (err) - goto error; - err = sysfs_create_file(&dev->kobj, - max6697_attributes[i][2]); - if (err) - goto error; - - if (data->chip->have_crit & (1 << i)) { - err = sysfs_create_file(&dev->kobj, - max6697_attributes[i][3]); - if (err) - goto error; - err = sysfs_create_file(&dev->kobj, - max6697_attributes[i][4]); - if (err) - goto error; - } - if (data->chip->have_fault & (1 << i)) { - err = sysfs_create_file(&dev->kobj, - max6697_attributes[i][5]); - if (err) - goto error; - } - } + err = sysfs_create_group(&client->dev.kobj, &max6697_group); + if (err) + return err; data->hwmon_dev = hwmon_device_register(dev); if (IS_ERR(data->hwmon_dev)) { @@ -680,7 +657,7 @@ static int max6697_probe(struct i2c_client *client, return 0; error: - max6697_remove_files(client); + sysfs_remove_group(&client->dev.kobj, &max6697_group); return err; } @@ -689,7 +666,7 @@ static int max6697_remove(struct i2c_client *client) struct max6697_data *data = i2c_get_clientdata(client); hwmon_device_unregister(data->hwmon_dev); - max6697_remove_files(client); + sysfs_remove_group(&client->dev.kobj, &max6697_group); return 0; } diff --git a/drivers/hwmon/mc13783-adc.c b/drivers/hwmon/mc13783-adc.c index 2a7f331cd3c..982d8622c09 100644 --- a/drivers/hwmon/mc13783-adc.c +++ b/drivers/hwmon/mc13783-adc.c @@ -273,18 +273,7 @@ static struct platform_driver mc13783_adc_driver = { .id_table = mc13783_adc_idtable, }; -static int __init mc13783_adc_init(void) -{ - return platform_driver_probe(&mc13783_adc_driver, mc13783_adc_probe); -} - -static void __exit mc13783_adc_exit(void) -{ - platform_driver_unregister(&mc13783_adc_driver); -} - -module_init(mc13783_adc_init); -module_exit(mc13783_adc_exit); +module_platform_driver_probe(mc13783_adc_driver, mc13783_adc_probe); MODULE_DESCRIPTION("MC13783 ADC driver"); MODULE_AUTHOR("Luotao Fu <l.fu@pengutronix.de>"); diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c new file mode 100644 index 00000000000..f43f5e571db --- /dev/null +++ b/drivers/hwmon/nct6775.c @@ -0,0 +1,4191 @@ +/* + * nct6775 - Driver for the hardware monitoring functionality of + * Nuvoton NCT677x Super-I/O chips + * + * Copyright (C) 2012 Guenter Roeck <linux@roeck-us.net> + * + * Derived from w83627ehf driver + * Copyright (C) 2005-2012 Jean Delvare <khali@linux-fr.org> + * Copyright (C) 2006 Yuan Mu (Winbond), + * Rudolf Marek <r.marek@assembler.cz> + * David Hubbard <david.c.hubbard@gmail.com> + * Daniel J Blueman <daniel.blueman@gmail.com> + * Copyright (C) 2010 Sheng-Yuan Huang (Nuvoton) (PS00) + * + * Shamelessly ripped from the w83627hf driver + * Copyright (C) 2003 Mark Studebaker + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + * Supports the following chips: + * + * Chip #vin #fan #pwm #temp chip IDs man ID + * nct6775f 9 4 3 6+3 0xb470 0xc1 0x5ca3 + * nct6776f 9 5 3 6+3 0xc330 0xc1 0x5ca3 + * nct6779d 15 5 5 2+6 0xc560 0xc1 0x5ca3 + * + * #temp lists the number of monitored temperature sources (first value) plus + * the number of directly connectable temperature sensors (second value). + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/jiffies.h> +#include <linux/platform_device.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/hwmon-vid.h> +#include <linux/err.h> +#include <linux/mutex.h> +#include <linux/acpi.h> +#include <linux/io.h> +#include "lm75.h" + +#define USE_ALTERNATE + +enum kinds { nct6775, nct6776, nct6779 }; + +/* used to set data->name = nct6775_device_names[data->sio_kind] */ +static const char * const nct6775_device_names[] = { + "nct6775", + "nct6776", + "nct6779", +}; + +static unsigned short force_id; +module_param(force_id, ushort, 0); +MODULE_PARM_DESC(force_id, "Override the detected device ID"); + +static unsigned short fan_debounce; +module_param(fan_debounce, ushort, 0); +MODULE_PARM_DESC(fan_debounce, "Enable debouncing for fan RPM signal"); + +#define DRVNAME "nct6775" + +/* + * Super-I/O constants and functions + */ + +#define NCT6775_LD_ACPI 0x0a +#define NCT6775_LD_HWM 0x0b +#define NCT6775_LD_VID 0x0d + +#define SIO_REG_LDSEL 0x07 /* Logical device select */ +#define SIO_REG_DEVID 0x20 /* Device ID (2 bytes) */ +#define SIO_REG_ENABLE 0x30 /* Logical device enable */ +#define SIO_REG_ADDR 0x60 /* Logical device address (2 bytes) */ + +#define SIO_NCT6775_ID 0xb470 +#define SIO_NCT6776_ID 0xc330 +#define SIO_NCT6779_ID 0xc560 +#define SIO_ID_MASK 0xFFF0 + +enum pwm_enable { off, manual, thermal_cruise, speed_cruise, sf3, sf4 }; + +static inline void +superio_outb(int ioreg, int reg, int val) +{ + outb(reg, ioreg); + outb(val, ioreg + 1); +} + +static inline int +superio_inb(int ioreg, int reg) +{ + outb(reg, ioreg); + return inb(ioreg + 1); +} + +static inline void +superio_select(int ioreg, int ld) +{ + outb(SIO_REG_LDSEL, ioreg); + outb(ld, ioreg + 1); +} + +static inline int +superio_enter(int ioreg) +{ + /* + * Try to reserve <ioreg> and <ioreg + 1> for exclusive access. + */ + if (!request_muxed_region(ioreg, 2, DRVNAME)) + return -EBUSY; + + outb(0x87, ioreg); + outb(0x87, ioreg); + + return 0; +} + +static inline void +superio_exit(int ioreg) +{ + outb(0xaa, ioreg); + outb(0x02, ioreg); + outb(0x02, ioreg + 1); + release_region(ioreg, 2); +} + +/* + * ISA constants + */ + +#define IOREGION_ALIGNMENT (~7) +#define IOREGION_OFFSET 5 +#define IOREGION_LENGTH 2 +#define ADDR_REG_OFFSET 0 +#define DATA_REG_OFFSET 1 + +#define NCT6775_REG_BANK 0x4E +#define NCT6775_REG_CONFIG 0x40 + +/* + * Not currently used: + * REG_MAN_ID has the value 0x5ca3 for all supported chips. + * REG_CHIP_ID == 0x88/0xa1/0xc1 depending on chip model. + * REG_MAN_ID is at port 0x4f + * REG_CHIP_ID is at port 0x58 + */ + +#define NUM_TEMP 10 /* Max number of temp attribute sets w/ limits*/ +#define NUM_TEMP_FIXED 6 /* Max number of fixed temp attribute sets */ + +#define NUM_REG_ALARM 4 /* Max number of alarm registers */ + +/* Common and NCT6775 specific data */ + +/* Voltage min/max registers for nr=7..14 are in bank 5 */ + +static const u16 NCT6775_REG_IN_MAX[] = { + 0x2b, 0x2d, 0x2f, 0x31, 0x33, 0x35, 0x37, 0x554, 0x556, 0x558, 0x55a, + 0x55c, 0x55e, 0x560, 0x562 }; +static const u16 NCT6775_REG_IN_MIN[] = { + 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x555, 0x557, 0x559, 0x55b, + 0x55d, 0x55f, 0x561, 0x563 }; +static const u16 NCT6775_REG_IN[] = { + 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x550, 0x551, 0x552 +}; + +#define NCT6775_REG_VBAT 0x5D +#define NCT6775_REG_DIODE 0x5E + +#define NCT6775_REG_FANDIV1 0x506 +#define NCT6775_REG_FANDIV2 0x507 + +#define NCT6775_REG_CR_FAN_DEBOUNCE 0xf0 + +static const u16 NCT6775_REG_ALARM[NUM_REG_ALARM] = { 0x459, 0x45A, 0x45B }; + +/* 0..15 voltages, 16..23 fans, 24..31 temperatures */ + +static const s8 NCT6775_ALARM_BITS[] = { + 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */ + 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */ + -1, /* unused */ + 6, 7, 11, 10, 23, /* fan1..fan5 */ + -1, -1, -1, /* unused */ + 4, 5, 13, -1, -1, -1, /* temp1..temp6 */ + 12, -1 }; /* intrusion0, intrusion1 */ + +#define FAN_ALARM_BASE 16 +#define TEMP_ALARM_BASE 24 +#define INTRUSION_ALARM_BASE 30 + +static const u8 NCT6775_REG_CR_CASEOPEN_CLR[] = { 0xe6, 0xee }; +static const u8 NCT6775_CR_CASEOPEN_CLR_MASK[] = { 0x20, 0x01 }; + +/* DC or PWM output fan configuration */ +static const u8 NCT6775_REG_PWM_MODE[] = { 0x04, 0x04, 0x12 }; +static const u8 NCT6775_PWM_MODE_MASK[] = { 0x01, 0x02, 0x01 }; + +/* Advanced Fan control, some values are common for all fans */ + +static const u16 NCT6775_REG_TARGET[] = { 0x101, 0x201, 0x301, 0x801, 0x901 }; +static const u16 NCT6775_REG_FAN_MODE[] = { 0x102, 0x202, 0x302, 0x802, 0x902 }; +static const u16 NCT6775_REG_FAN_STEP_DOWN_TIME[] = { + 0x103, 0x203, 0x303, 0x803, 0x903 }; +static const u16 NCT6775_REG_FAN_STEP_UP_TIME[] = { + 0x104, 0x204, 0x304, 0x804, 0x904 }; +static const u16 NCT6775_REG_FAN_STOP_OUTPUT[] = { + 0x105, 0x205, 0x305, 0x805, 0x905 }; +static const u16 NCT6775_REG_FAN_START_OUTPUT[] + = { 0x106, 0x206, 0x306, 0x806, 0x906 }; +static const u16 NCT6775_REG_FAN_MAX_OUTPUT[] = { 0x10a, 0x20a, 0x30a }; +static const u16 NCT6775_REG_FAN_STEP_OUTPUT[] = { 0x10b, 0x20b, 0x30b }; + +static const u16 NCT6775_REG_FAN_STOP_TIME[] = { + 0x107, 0x207, 0x307, 0x807, 0x907 }; +static const u16 NCT6775_REG_PWM[] = { 0x109, 0x209, 0x309, 0x809, 0x909 }; +static const u16 NCT6775_REG_PWM_READ[] = { 0x01, 0x03, 0x11, 0x13, 0x15 }; + +static const u16 NCT6775_REG_FAN[] = { 0x630, 0x632, 0x634, 0x636, 0x638 }; +static const u16 NCT6775_REG_FAN_MIN[] = { 0x3b, 0x3c, 0x3d }; +static const u16 NCT6775_REG_FAN_PULSES[] = { 0x641, 0x642, 0x643, 0x644, 0 }; + +static const u16 NCT6775_REG_TEMP[] = { + 0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d }; + +static const u16 NCT6775_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = { + 0, 0x152, 0x252, 0x628, 0x629, 0x62A }; +static const u16 NCT6775_REG_TEMP_HYST[ARRAY_SIZE(NCT6775_REG_TEMP)] = { + 0x3a, 0x153, 0x253, 0x673, 0x678, 0x67D }; +static const u16 NCT6775_REG_TEMP_OVER[ARRAY_SIZE(NCT6775_REG_TEMP)] = { + 0x39, 0x155, 0x255, 0x672, 0x677, 0x67C }; + +static const u16 NCT6775_REG_TEMP_SOURCE[ARRAY_SIZE(NCT6775_REG_TEMP)] = { + 0x621, 0x622, 0x623, 0x624, 0x625, 0x626 }; + +static const u16 NCT6775_REG_TEMP_SEL[] = { + 0x100, 0x200, 0x300, 0x800, 0x900 }; + +static const u16 NCT6775_REG_WEIGHT_TEMP_SEL[] = { + 0x139, 0x239, 0x339, 0x839, 0x939 }; +static const u16 NCT6775_REG_WEIGHT_TEMP_STEP[] = { + 0x13a, 0x23a, 0x33a, 0x83a, 0x93a }; +static const u16 NCT6775_REG_WEIGHT_TEMP_STEP_TOL[] = { + 0x13b, 0x23b, 0x33b, 0x83b, 0x93b }; +static const u16 NCT6775_REG_WEIGHT_DUTY_STEP[] = { + 0x13c, 0x23c, 0x33c, 0x83c, 0x93c }; +static const u16 NCT6775_REG_WEIGHT_TEMP_BASE[] = { + 0x13d, 0x23d, 0x33d, 0x83d, 0x93d }; + +static const u16 NCT6775_REG_TEMP_OFFSET[] = { 0x454, 0x455, 0x456 }; + +static const u16 NCT6775_REG_AUTO_TEMP[] = { + 0x121, 0x221, 0x321, 0x821, 0x921 }; +static const u16 NCT6775_REG_AUTO_PWM[] = { + 0x127, 0x227, 0x327, 0x827, 0x927 }; + +#define NCT6775_AUTO_TEMP(data, nr, p) ((data)->REG_AUTO_TEMP[nr] + (p)) +#define NCT6775_AUTO_PWM(data, nr, p) ((data)->REG_AUTO_PWM[nr] + (p)) + +static const u16 NCT6775_REG_CRITICAL_ENAB[] = { 0x134, 0x234, 0x334 }; + +static const u16 NCT6775_REG_CRITICAL_TEMP[] = { + 0x135, 0x235, 0x335, 0x835, 0x935 }; +static const u16 NCT6775_REG_CRITICAL_TEMP_TOLERANCE[] = { + 0x138, 0x238, 0x338, 0x838, 0x938 }; + +static const char *const nct6775_temp_label[] = { + "", + "SYSTIN", + "CPUTIN", + "AUXTIN", + "AMD SB-TSI", + "PECI Agent 0", + "PECI Agent 1", + "PECI Agent 2", + "PECI Agent 3", + "PECI Agent 4", + "PECI Agent 5", + "PECI Agent 6", + "PECI Agent 7", + "PCH_CHIP_CPU_MAX_TEMP", + "PCH_CHIP_TEMP", + "PCH_CPU_TEMP", + "PCH_MCH_TEMP", + "PCH_DIM0_TEMP", + "PCH_DIM1_TEMP", + "PCH_DIM2_TEMP", + "PCH_DIM3_TEMP" +}; + +static const u16 NCT6775_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6775_temp_label) - 1] + = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x661, 0x662, 0x664 }; + +static const u16 NCT6775_REG_TEMP_CRIT[ARRAY_SIZE(nct6775_temp_label) - 1] + = { 0, 0, 0, 0, 0xa00, 0xa01, 0xa02, 0xa03, 0xa04, 0xa05, 0xa06, + 0xa07 }; + +/* NCT6776 specific data */ + +static const s8 NCT6776_ALARM_BITS[] = { + 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */ + 17, -1, -1, -1, -1, -1, -1, /* in8..in14 */ + -1, /* unused */ + 6, 7, 11, 10, 23, /* fan1..fan5 */ + -1, -1, -1, /* unused */ + 4, 5, 13, -1, -1, -1, /* temp1..temp6 */ + 12, 9 }; /* intrusion0, intrusion1 */ + +static const u16 NCT6776_REG_TOLERANCE_H[] = { + 0x10c, 0x20c, 0x30c, 0x80c, 0x90c }; + +static const u8 NCT6776_REG_PWM_MODE[] = { 0x04, 0, 0 }; +static const u8 NCT6776_PWM_MODE_MASK[] = { 0x01, 0, 0 }; + +static const u16 NCT6776_REG_FAN_MIN[] = { 0x63a, 0x63c, 0x63e, 0x640, 0x642 }; +static const u16 NCT6776_REG_FAN_PULSES[] = { 0x644, 0x645, 0x646, 0, 0 }; + +static const u16 NCT6776_REG_WEIGHT_DUTY_BASE[] = { + 0x13e, 0x23e, 0x33e, 0x83e, 0x93e }; + +static const u16 NCT6776_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = { + 0x18, 0x152, 0x252, 0x628, 0x629, 0x62A }; + +static const char *const nct6776_temp_label[] = { + "", + "SYSTIN", + "CPUTIN", + "AUXTIN", + "SMBUSMASTER 0", + "SMBUSMASTER 1", + "SMBUSMASTER 2", + "SMBUSMASTER 3", + "SMBUSMASTER 4", + "SMBUSMASTER 5", + "SMBUSMASTER 6", + "SMBUSMASTER 7", + "PECI Agent 0", + "PECI Agent 1", + "PCH_CHIP_CPU_MAX_TEMP", + "PCH_CHIP_TEMP", + "PCH_CPU_TEMP", + "PCH_MCH_TEMP", + "PCH_DIM0_TEMP", + "PCH_DIM1_TEMP", + "PCH_DIM2_TEMP", + "PCH_DIM3_TEMP", + "BYTE_TEMP" +}; + +static const u16 NCT6776_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6776_temp_label) - 1] + = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x401, 0x402, 0x404 }; + +static const u16 NCT6776_REG_TEMP_CRIT[ARRAY_SIZE(nct6776_temp_label) - 1] + = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a }; + +/* NCT6779 specific data */ + +static const u16 NCT6779_REG_IN[] = { + 0x480, 0x481, 0x482, 0x483, 0x484, 0x485, 0x486, 0x487, + 0x488, 0x489, 0x48a, 0x48b, 0x48c, 0x48d, 0x48e }; + +static const u16 NCT6779_REG_ALARM[NUM_REG_ALARM] = { + 0x459, 0x45A, 0x45B, 0x568 }; + +static const s8 NCT6779_ALARM_BITS[] = { + 0, 1, 2, 3, 8, 21, 20, 16, /* in0.. in7 */ + 17, 24, 25, 26, 27, 28, 29, /* in8..in14 */ + -1, /* unused */ + 6, 7, 11, 10, 23, /* fan1..fan5 */ + -1, -1, -1, /* unused */ + 4, 5, 13, -1, -1, -1, /* temp1..temp6 */ + 12, 9 }; /* intrusion0, intrusion1 */ + +static const u16 NCT6779_REG_FAN[] = { 0x4b0, 0x4b2, 0x4b4, 0x4b6, 0x4b8 }; +static const u16 NCT6779_REG_FAN_PULSES[] = { + 0x644, 0x645, 0x646, 0x647, 0x648 }; + +static const u16 NCT6779_REG_CRITICAL_PWM_ENABLE[] = { + 0x136, 0x236, 0x336, 0x836, 0x936 }; +static const u16 NCT6779_REG_CRITICAL_PWM[] = { + 0x137, 0x237, 0x337, 0x837, 0x937 }; + +static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 }; +static const u16 NCT6779_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6779_REG_TEMP)] = { + 0x18, 0x152 }; +static const u16 NCT6779_REG_TEMP_HYST[ARRAY_SIZE(NCT6779_REG_TEMP)] = { + 0x3a, 0x153 }; +static const u16 NCT6779_REG_TEMP_OVER[ARRAY_SIZE(NCT6779_REG_TEMP)] = { + 0x39, 0x155 }; + +static const u16 NCT6779_REG_TEMP_OFFSET[] = { + 0x454, 0x455, 0x456, 0x44a, 0x44b, 0x44c }; + +static const char *const nct6779_temp_label[] = { + "", + "SYSTIN", + "CPUTIN", + "AUXTIN0", + "AUXTIN1", + "AUXTIN2", + "AUXTIN3", + "", + "SMBUSMASTER 0", + "SMBUSMASTER 1", + "SMBUSMASTER 2", + "SMBUSMASTER 3", + "SMBUSMASTER 4", + "SMBUSMASTER 5", + "SMBUSMASTER 6", + "SMBUSMASTER 7", + "PECI Agent 0", + "PECI Agent 1", + "PCH_CHIP_CPU_MAX_TEMP", + "PCH_CHIP_TEMP", + "PCH_CPU_TEMP", + "PCH_MCH_TEMP", + "PCH_DIM0_TEMP", + "PCH_DIM1_TEMP", + "PCH_DIM2_TEMP", + "PCH_DIM3_TEMP", + "BYTE_TEMP" +}; + +static const u16 NCT6779_REG_TEMP_ALTERNATE[ARRAY_SIZE(nct6779_temp_label) - 1] + = { 0x490, 0x491, 0x492, 0x493, 0x494, 0x495, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0x400, 0x401, 0x402, 0x404, 0x405, 0x406, 0x407, + 0x408, 0 }; + +static const u16 NCT6779_REG_TEMP_CRIT[ARRAY_SIZE(nct6779_temp_label) - 1] + = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x709, 0x70a }; + +static enum pwm_enable reg_to_pwm_enable(int pwm, int mode) +{ + if (mode == 0 && pwm == 255) + return off; + return mode + 1; +} + +static int pwm_enable_to_reg(enum pwm_enable mode) +{ + if (mode == off) + return 0; + return mode - 1; +} + +/* + * Conversions + */ + +/* 1 is DC mode, output in ms */ +static unsigned int step_time_from_reg(u8 reg, u8 mode) +{ + return mode ? 400 * reg : 100 * reg; +} + +static u8 step_time_to_reg(unsigned int msec, u8 mode) +{ + return clamp_val((mode ? (msec + 200) / 400 : + (msec + 50) / 100), 1, 255); +} + +static unsigned int fan_from_reg8(u16 reg, unsigned int divreg) +{ + if (reg == 0 || reg == 255) + return 0; + return 1350000U / (reg << divreg); +} + +static unsigned int fan_from_reg13(u16 reg, unsigned int divreg) +{ + if ((reg & 0xff1f) == 0xff1f) + return 0; + + reg = (reg & 0x1f) | ((reg & 0xff00) >> 3); + + if (reg == 0) + return 0; + + return 1350000U / reg; +} + +static unsigned int fan_from_reg16(u16 reg, unsigned int divreg) +{ + if (reg == 0 || reg == 0xffff) + return 0; + + /* + * Even though the registers are 16 bit wide, the fan divisor + * still applies. + */ + return 1350000U / (reg << divreg); +} + +static u16 fan_to_reg(u32 fan, unsigned int divreg) +{ + if (!fan) + return 0; + + return (1350000U / fan) >> divreg; +} + +static inline unsigned int +div_from_reg(u8 reg) +{ + return 1 << reg; +} + +/* + * Some of the voltage inputs have internal scaling, the tables below + * contain 8 (the ADC LSB in mV) * scaling factor * 100 + */ +static const u16 scale_in[15] = { + 800, 800, 1600, 1600, 800, 800, 800, 1600, 1600, 800, 800, 800, 800, + 800, 800 +}; + +static inline long in_from_reg(u8 reg, u8 nr) +{ + return DIV_ROUND_CLOSEST(reg * scale_in[nr], 100); +} + +static inline u8 in_to_reg(u32 val, u8 nr) +{ + return clamp_val(DIV_ROUND_CLOSEST(val * 100, scale_in[nr]), 0, 255); +} + +/* + * Data structures and manipulation thereof + */ + +struct nct6775_data { + int addr; /* IO base of hw monitor block */ + enum kinds kind; + const char *name; + + struct device *hwmon_dev; + + u16 reg_temp[4][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst, + * 3=temp_crit + */ + u8 temp_src[NUM_TEMP]; + u16 reg_temp_config[NUM_TEMP]; + const char * const *temp_label; + int temp_label_num; + + u16 REG_CONFIG; + u16 REG_VBAT; + u16 REG_DIODE; + + const s8 *ALARM_BITS; + + const u16 *REG_VIN; + const u16 *REG_IN_MINMAX[2]; + + const u16 *REG_TARGET; + const u16 *REG_FAN; + const u16 *REG_FAN_MODE; + const u16 *REG_FAN_MIN; + const u16 *REG_FAN_PULSES; + const u16 *REG_FAN_TIME[3]; + + const u16 *REG_TOLERANCE_H; + + const u8 *REG_PWM_MODE; + const u8 *PWM_MODE_MASK; + + const u16 *REG_PWM[7]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor, + * [3]=pwm_max, [4]=pwm_step, + * [5]=weight_duty_step, [6]=weight_duty_base + */ + const u16 *REG_PWM_READ; + + const u16 *REG_AUTO_TEMP; + const u16 *REG_AUTO_PWM; + + const u16 *REG_CRITICAL_TEMP; + const u16 *REG_CRITICAL_TEMP_TOLERANCE; + + const u16 *REG_TEMP_SOURCE; /* temp register sources */ + const u16 *REG_TEMP_SEL; + const u16 *REG_WEIGHT_TEMP_SEL; + const u16 *REG_WEIGHT_TEMP[3]; /* 0=base, 1=tolerance, 2=step */ + + const u16 *REG_TEMP_OFFSET; + + const u16 *REG_ALARM; + + unsigned int (*fan_from_reg)(u16 reg, unsigned int divreg); + unsigned int (*fan_from_reg_min)(u16 reg, unsigned int divreg); + + struct mutex update_lock; + bool valid; /* true if following fields are valid */ + unsigned long last_updated; /* In jiffies */ + + /* Register values */ + u8 bank; /* current register bank */ + u8 in_num; /* number of in inputs we have */ + u8 in[15][3]; /* [0]=in, [1]=in_max, [2]=in_min */ + unsigned int rpm[5]; + u16 fan_min[5]; + u8 fan_pulses[5]; + u8 fan_div[5]; + u8 has_pwm; + u8 has_fan; /* some fan inputs can be disabled */ + u8 has_fan_min; /* some fans don't have min register */ + bool has_fan_div; + + u8 temp_fixed_num; /* 3 or 6 */ + u8 temp_type[NUM_TEMP_FIXED]; + s8 temp_offset[NUM_TEMP_FIXED]; + s16 temp[4][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst, + * 3=temp_crit */ + u64 alarms; + + u8 pwm_num; /* number of pwm */ + u8 pwm_mode[5]; /* 1->DC variable voltage, 0->PWM variable duty cycle */ + enum pwm_enable pwm_enable[5]; + /* 0->off + * 1->manual + * 2->thermal cruise mode (also called SmartFan I) + * 3->fan speed cruise mode + * 4->SmartFan III + * 5->enhanced variable thermal cruise (SmartFan IV) + */ + u8 pwm[7][5]; /* [0]=pwm, [1]=pwm_start, [2]=pwm_floor, + * [3]=pwm_max, [4]=pwm_step, + * [5]=weight_duty_step, [6]=weight_duty_base + */ + + u8 target_temp[5]; + u8 target_temp_mask; + u32 target_speed[5]; + u32 target_speed_tolerance[5]; + u8 speed_tolerance_limit; + + u8 temp_tolerance[2][5]; + u8 tolerance_mask; + + u8 fan_time[3][5]; /* 0 = stop_time, 1 = step_up, 2 = step_down */ + + /* Automatic fan speed control registers */ + int auto_pwm_num; + u8 auto_pwm[5][7]; + u8 auto_temp[5][7]; + u8 pwm_temp_sel[5]; + u8 pwm_weight_temp_sel[5]; + u8 weight_temp[3][5]; /* 0->temp_step, 1->temp_step_tol, + * 2->temp_base + */ + + u8 vid; + u8 vrm; + + u16 have_temp; + u16 have_temp_fixed; + u16 have_in; +#ifdef CONFIG_PM + /* Remember extra register values over suspend/resume */ + u8 vbat; + u8 fandiv1; + u8 fandiv2; +#endif +}; + +struct nct6775_sio_data { + int sioreg; + enum kinds kind; +}; + +static bool is_word_sized(struct nct6775_data *data, u16 reg) +{ + switch (data->kind) { + case nct6775: + return (((reg & 0xff00) == 0x100 || + (reg & 0xff00) == 0x200) && + ((reg & 0x00ff) == 0x50 || + (reg & 0x00ff) == 0x53 || + (reg & 0x00ff) == 0x55)) || + (reg & 0xfff0) == 0x630 || + reg == 0x640 || reg == 0x642 || + reg == 0x662 || + ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) || + reg == 0x73 || reg == 0x75 || reg == 0x77; + case nct6776: + return (((reg & 0xff00) == 0x100 || + (reg & 0xff00) == 0x200) && + ((reg & 0x00ff) == 0x50 || + (reg & 0x00ff) == 0x53 || + (reg & 0x00ff) == 0x55)) || + (reg & 0xfff0) == 0x630 || + reg == 0x402 || + reg == 0x640 || reg == 0x642 || + ((reg & 0xfff0) == 0x650 && (reg & 0x000f) >= 0x06) || + reg == 0x73 || reg == 0x75 || reg == 0x77; + case nct6779: + return reg == 0x150 || reg == 0x153 || reg == 0x155 || + ((reg & 0xfff0) == 0x4b0 && (reg & 0x000f) < 0x09) || + reg == 0x402 || + reg == 0x63a || reg == 0x63c || reg == 0x63e || + reg == 0x640 || reg == 0x642 || + reg == 0x73 || reg == 0x75 || reg == 0x77 || reg == 0x79 || + reg == 0x7b; + } + return false; +} + +/* + * On older chips, only registers 0x50-0x5f are banked. + * On more recent chips, all registers are banked. + * Assume that is the case and set the bank number for each access. + * Cache the bank number so it only needs to be set if it changes. + */ +static inline void nct6775_set_bank(struct nct6775_data *data, u16 reg) +{ + u8 bank = reg >> 8; + if (data->bank != bank) { + outb_p(NCT6775_REG_BANK, data->addr + ADDR_REG_OFFSET); + outb_p(bank, data->addr + DATA_REG_OFFSET); + data->bank = bank; + } +} + +static u16 nct6775_read_value(struct nct6775_data *data, u16 reg) +{ + int res, word_sized = is_word_sized(data, reg); + + nct6775_set_bank(data, reg); + outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET); + res = inb_p(data->addr + DATA_REG_OFFSET); + if (word_sized) { + outb_p((reg & 0xff) + 1, + data->addr + ADDR_REG_OFFSET); + res = (res << 8) + inb_p(data->addr + DATA_REG_OFFSET); + } + return res; +} + +static int nct6775_write_value(struct nct6775_data *data, u16 reg, u16 value) +{ + int word_sized = is_word_sized(data, reg); + + nct6775_set_bank(data, reg); + outb_p(reg & 0xff, data->addr + ADDR_REG_OFFSET); + if (word_sized) { + outb_p(value >> 8, data->addr + DATA_REG_OFFSET); + outb_p((reg & 0xff) + 1, + data->addr + ADDR_REG_OFFSET); + } + outb_p(value & 0xff, data->addr + DATA_REG_OFFSET); + return 0; +} + +/* We left-align 8-bit temperature values to make the code simpler */ +static u16 nct6775_read_temp(struct nct6775_data *data, u16 reg) +{ + u16 res; + + res = nct6775_read_value(data, reg); + if (!is_word_sized(data, reg)) + res <<= 8; + + return res; +} + +static int nct6775_write_temp(struct nct6775_data *data, u16 reg, u16 value) +{ + if (!is_word_sized(data, reg)) + value >>= 8; + return nct6775_write_value(data, reg, value); +} + +/* This function assumes that the caller holds data->update_lock */ +static void nct6775_write_fan_div(struct nct6775_data *data, int nr) +{ + u8 reg; + + switch (nr) { + case 0: + reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x70) + | (data->fan_div[0] & 0x7); + nct6775_write_value(data, NCT6775_REG_FANDIV1, reg); + break; + case 1: + reg = (nct6775_read_value(data, NCT6775_REG_FANDIV1) & 0x7) + | ((data->fan_div[1] << 4) & 0x70); + nct6775_write_value(data, NCT6775_REG_FANDIV1, reg); + break; + case 2: + reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x70) + | (data->fan_div[2] & 0x7); + nct6775_write_value(data, NCT6775_REG_FANDIV2, reg); + break; + case 3: + reg = (nct6775_read_value(data, NCT6775_REG_FANDIV2) & 0x7) + | ((data->fan_div[3] << 4) & 0x70); + nct6775_write_value(data, NCT6775_REG_FANDIV2, reg); + break; + } +} + +static void nct6775_write_fan_div_common(struct nct6775_data *data, int nr) +{ + if (data->kind == nct6775) + nct6775_write_fan_div(data, nr); +} + +static void nct6775_update_fan_div(struct nct6775_data *data) +{ + u8 i; + + i = nct6775_read_value(data, NCT6775_REG_FANDIV1); + data->fan_div[0] = i & 0x7; + data->fan_div[1] = (i & 0x70) >> 4; + i = nct6775_read_value(data, NCT6775_REG_FANDIV2); + data->fan_div[2] = i & 0x7; + if (data->has_fan & (1 << 3)) + data->fan_div[3] = (i & 0x70) >> 4; +} + +static void nct6775_update_fan_div_common(struct nct6775_data *data) +{ + if (data->kind == nct6775) + nct6775_update_fan_div(data); +} + +static void nct6775_init_fan_div(struct nct6775_data *data) +{ + int i; + + nct6775_update_fan_div_common(data); + /* + * For all fans, start with highest divider value if the divider + * register is not initialized. This ensures that we get a + * reading from the fan count register, even if it is not optimal. + * We'll compute a better divider later on. + */ + for (i = 0; i < ARRAY_SIZE(data->fan_div); i++) { + if (!(data->has_fan & (1 << i))) + continue; + if (data->fan_div[i] == 0) { + data->fan_div[i] = 7; + nct6775_write_fan_div_common(data, i); + } + } +} + +static void nct6775_init_fan_common(struct device *dev, + struct nct6775_data *data) +{ + int i; + u8 reg; + + if (data->has_fan_div) + nct6775_init_fan_div(data); + + /* + * If fan_min is not set (0), set it to 0xff to disable it. This + * prevents the unnecessary warning when fanX_min is reported as 0. + */ + for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) { + if (data->has_fan_min & (1 << i)) { + reg = nct6775_read_value(data, data->REG_FAN_MIN[i]); + if (!reg) + nct6775_write_value(data, data->REG_FAN_MIN[i], + data->has_fan_div ? 0xff + : 0xff1f); + } + } +} + +static void nct6775_select_fan_div(struct device *dev, + struct nct6775_data *data, int nr, u16 reg) +{ + u8 fan_div = data->fan_div[nr]; + u16 fan_min; + + if (!data->has_fan_div) + return; + + /* + * If we failed to measure the fan speed, or the reported value is not + * in the optimal range, and the clock divider can be modified, + * let's try that for next time. + */ + if (reg == 0x00 && fan_div < 0x07) + fan_div++; + else if (reg != 0x00 && reg < 0x30 && fan_div > 0) + fan_div--; + + if (fan_div != data->fan_div[nr]) { + dev_dbg(dev, "Modifying fan%d clock divider from %u to %u\n", + nr + 1, div_from_reg(data->fan_div[nr]), + div_from_reg(fan_div)); + + /* Preserve min limit if possible */ + if (data->has_fan_min & (1 << nr)) { + fan_min = data->fan_min[nr]; + if (fan_div > data->fan_div[nr]) { + if (fan_min != 255 && fan_min > 1) + fan_min >>= 1; + } else { + if (fan_min != 255) { + fan_min <<= 1; + if (fan_min > 254) + fan_min = 254; + } + } + if (fan_min != data->fan_min[nr]) { + data->fan_min[nr] = fan_min; + nct6775_write_value(data, data->REG_FAN_MIN[nr], + fan_min); + } + } + data->fan_div[nr] = fan_div; + nct6775_write_fan_div_common(data, nr); + } +} + +static void nct6775_update_pwm(struct device *dev) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + int i, j; + int fanmodecfg, reg; + bool duty_is_dc; + + for (i = 0; i < data->pwm_num; i++) { + if (!(data->has_pwm & (1 << i))) + continue; + + duty_is_dc = data->REG_PWM_MODE[i] && + (nct6775_read_value(data, data->REG_PWM_MODE[i]) + & data->PWM_MODE_MASK[i]); + data->pwm_mode[i] = duty_is_dc; + + fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]); + for (j = 0; j < ARRAY_SIZE(data->REG_PWM); j++) { + if (data->REG_PWM[j] && data->REG_PWM[j][i]) { + data->pwm[j][i] + = nct6775_read_value(data, + data->REG_PWM[j][i]); + } + } + + data->pwm_enable[i] = reg_to_pwm_enable(data->pwm[0][i], + (fanmodecfg >> 4) & 7); + + if (!data->temp_tolerance[0][i] || + data->pwm_enable[i] != speed_cruise) + data->temp_tolerance[0][i] = fanmodecfg & 0x0f; + if (!data->target_speed_tolerance[i] || + data->pwm_enable[i] == speed_cruise) { + u8 t = fanmodecfg & 0x0f; + if (data->REG_TOLERANCE_H) { + t |= (nct6775_read_value(data, + data->REG_TOLERANCE_H[i]) & 0x70) >> 1; + } + data->target_speed_tolerance[i] = t; + } + + data->temp_tolerance[1][i] = + nct6775_read_value(data, + data->REG_CRITICAL_TEMP_TOLERANCE[i]); + + reg = nct6775_read_value(data, data->REG_TEMP_SEL[i]); + data->pwm_temp_sel[i] = reg & 0x1f; + /* If fan can stop, report floor as 0 */ + if (reg & 0x80) + data->pwm[2][i] = 0; + + reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[i]); + data->pwm_weight_temp_sel[i] = reg & 0x1f; + /* If weight is disabled, report weight source as 0 */ + if (j == 1 && !(reg & 0x80)) + data->pwm_weight_temp_sel[i] = 0; + + /* Weight temp data */ + for (j = 0; j < ARRAY_SIZE(data->weight_temp); j++) { + data->weight_temp[j][i] + = nct6775_read_value(data, + data->REG_WEIGHT_TEMP[j][i]); + } + } +} + +static void nct6775_update_pwm_limits(struct device *dev) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + int i, j; + u8 reg; + u16 reg_t; + + for (i = 0; i < data->pwm_num; i++) { + if (!(data->has_pwm & (1 << i))) + continue; + + for (j = 0; j < ARRAY_SIZE(data->fan_time); j++) { + data->fan_time[j][i] = + nct6775_read_value(data, data->REG_FAN_TIME[j][i]); + } + + reg_t = nct6775_read_value(data, data->REG_TARGET[i]); + /* Update only in matching mode or if never updated */ + if (!data->target_temp[i] || + data->pwm_enable[i] == thermal_cruise) + data->target_temp[i] = reg_t & data->target_temp_mask; + if (!data->target_speed[i] || + data->pwm_enable[i] == speed_cruise) { + if (data->REG_TOLERANCE_H) { + reg_t |= (nct6775_read_value(data, + data->REG_TOLERANCE_H[i]) & 0x0f) << 8; + } + data->target_speed[i] = reg_t; + } + + for (j = 0; j < data->auto_pwm_num; j++) { + data->auto_pwm[i][j] = + nct6775_read_value(data, + NCT6775_AUTO_PWM(data, i, j)); + data->auto_temp[i][j] = + nct6775_read_value(data, + NCT6775_AUTO_TEMP(data, i, j)); + } + + /* critical auto_pwm temperature data */ + data->auto_temp[i][data->auto_pwm_num] = + nct6775_read_value(data, data->REG_CRITICAL_TEMP[i]); + + switch (data->kind) { + case nct6775: + reg = nct6775_read_value(data, + NCT6775_REG_CRITICAL_ENAB[i]); + data->auto_pwm[i][data->auto_pwm_num] = + (reg & 0x02) ? 0xff : 0x00; + break; + case nct6776: + data->auto_pwm[i][data->auto_pwm_num] = 0xff; + break; + case nct6779: + reg = nct6775_read_value(data, + NCT6779_REG_CRITICAL_PWM_ENABLE[i]); + if (reg & 1) + data->auto_pwm[i][data->auto_pwm_num] = + nct6775_read_value(data, + NCT6779_REG_CRITICAL_PWM[i]); + else + data->auto_pwm[i][data->auto_pwm_num] = 0xff; + break; + } + } +} + +static struct nct6775_data *nct6775_update_device(struct device *dev) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + int i, j; + + mutex_lock(&data->update_lock); + + if (time_after(jiffies, data->last_updated + HZ + HZ / 2) + || !data->valid) { + /* Fan clock dividers */ + nct6775_update_fan_div_common(data); + + /* Measured voltages and limits */ + for (i = 0; i < data->in_num; i++) { + if (!(data->have_in & (1 << i))) + continue; + + data->in[i][0] = nct6775_read_value(data, + data->REG_VIN[i]); + data->in[i][1] = nct6775_read_value(data, + data->REG_IN_MINMAX[0][i]); + data->in[i][2] = nct6775_read_value(data, + data->REG_IN_MINMAX[1][i]); + } + + /* Measured fan speeds and limits */ + for (i = 0; i < ARRAY_SIZE(data->rpm); i++) { + u16 reg; + + if (!(data->has_fan & (1 << i))) + continue; + + reg = nct6775_read_value(data, data->REG_FAN[i]); + data->rpm[i] = data->fan_from_reg(reg, + data->fan_div[i]); + + if (data->has_fan_min & (1 << i)) + data->fan_min[i] = nct6775_read_value(data, + data->REG_FAN_MIN[i]); + data->fan_pulses[i] = + nct6775_read_value(data, data->REG_FAN_PULSES[i]); + + nct6775_select_fan_div(dev, data, i, reg); + } + + nct6775_update_pwm(dev); + nct6775_update_pwm_limits(dev); + + /* Measured temperatures and limits */ + for (i = 0; i < NUM_TEMP; i++) { + if (!(data->have_temp & (1 << i))) + continue; + for (j = 0; j < ARRAY_SIZE(data->reg_temp); j++) { + if (data->reg_temp[j][i]) + data->temp[j][i] + = nct6775_read_temp(data, + data->reg_temp[j][i]); + } + if (!(data->have_temp_fixed & (1 << i))) + continue; + data->temp_offset[i] + = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]); + } + + data->alarms = 0; + for (i = 0; i < NUM_REG_ALARM; i++) { + u8 alarm; + if (!data->REG_ALARM[i]) + continue; + alarm = nct6775_read_value(data, data->REG_ALARM[i]); + data->alarms |= ((u64)alarm) << (i << 3); + } + + data->last_updated = jiffies; + data->valid = true; + } + + mutex_unlock(&data->update_lock); + return data; +} + +/* + * Sysfs callback functions + */ +static ssize_t +show_in_reg(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int index = sattr->index; + return sprintf(buf, "%ld\n", in_from_reg(data->in[nr][index], nr)); +} + +static ssize_t +store_in_reg(struct device *dev, struct device_attribute *attr, const char *buf, + size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int index = sattr->index; + unsigned long val; + int err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + mutex_lock(&data->update_lock); + data->in[nr][index] = in_to_reg(val, nr); + nct6775_write_value(data, data->REG_IN_MINMAX[index - 1][nr], + data->in[nr][index]); + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t +show_alarm(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = data->ALARM_BITS[sattr->index]; + return sprintf(buf, "%u\n", + (unsigned int)((data->alarms >> nr) & 0x01)); +} + +static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in_reg, NULL, 0, 0); +static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in_reg, NULL, 1, 0); +static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in_reg, NULL, 2, 0); +static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in_reg, NULL, 3, 0); +static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in_reg, NULL, 4, 0); +static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in_reg, NULL, 5, 0); +static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in_reg, NULL, 6, 0); +static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in_reg, NULL, 7, 0); +static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in_reg, NULL, 8, 0); +static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in_reg, NULL, 9, 0); +static SENSOR_DEVICE_ATTR_2(in10_input, S_IRUGO, show_in_reg, NULL, 10, 0); +static SENSOR_DEVICE_ATTR_2(in11_input, S_IRUGO, show_in_reg, NULL, 11, 0); +static SENSOR_DEVICE_ATTR_2(in12_input, S_IRUGO, show_in_reg, NULL, 12, 0); +static SENSOR_DEVICE_ATTR_2(in13_input, S_IRUGO, show_in_reg, NULL, 13, 0); +static SENSOR_DEVICE_ATTR_2(in14_input, S_IRUGO, show_in_reg, NULL, 14, 0); + +static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0); +static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1); +static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2); +static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); +static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4); +static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5); +static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6); +static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7); +static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8); +static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 9); +static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 10); +static SENSOR_DEVICE_ATTR(in11_alarm, S_IRUGO, show_alarm, NULL, 11); +static SENSOR_DEVICE_ATTR(in12_alarm, S_IRUGO, show_alarm, NULL, 12); +static SENSOR_DEVICE_ATTR(in13_alarm, S_IRUGO, show_alarm, NULL, 13); +static SENSOR_DEVICE_ATTR(in14_alarm, S_IRUGO, show_alarm, NULL, 14); + +static SENSOR_DEVICE_ATTR_2(in0_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 0, 1); +static SENSOR_DEVICE_ATTR_2(in1_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 1, 1); +static SENSOR_DEVICE_ATTR_2(in2_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 2, 1); +static SENSOR_DEVICE_ATTR_2(in3_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 3, 1); +static SENSOR_DEVICE_ATTR_2(in4_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 4, 1); +static SENSOR_DEVICE_ATTR_2(in5_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 5, 1); +static SENSOR_DEVICE_ATTR_2(in6_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 6, 1); +static SENSOR_DEVICE_ATTR_2(in7_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 7, 1); +static SENSOR_DEVICE_ATTR_2(in8_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 8, 1); +static SENSOR_DEVICE_ATTR_2(in9_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 9, 1); +static SENSOR_DEVICE_ATTR_2(in10_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 10, 1); +static SENSOR_DEVICE_ATTR_2(in11_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 11, 1); +static SENSOR_DEVICE_ATTR_2(in12_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 12, 1); +static SENSOR_DEVICE_ATTR_2(in13_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 13, 1); +static SENSOR_DEVICE_ATTR_2(in14_min, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 14, 1); + +static SENSOR_DEVICE_ATTR_2(in0_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 0, 2); +static SENSOR_DEVICE_ATTR_2(in1_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 1, 2); +static SENSOR_DEVICE_ATTR_2(in2_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 2, 2); +static SENSOR_DEVICE_ATTR_2(in3_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 3, 2); +static SENSOR_DEVICE_ATTR_2(in4_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 4, 2); +static SENSOR_DEVICE_ATTR_2(in5_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 5, 2); +static SENSOR_DEVICE_ATTR_2(in6_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 6, 2); +static SENSOR_DEVICE_ATTR_2(in7_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 7, 2); +static SENSOR_DEVICE_ATTR_2(in8_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 8, 2); +static SENSOR_DEVICE_ATTR_2(in9_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 9, 2); +static SENSOR_DEVICE_ATTR_2(in10_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 10, 2); +static SENSOR_DEVICE_ATTR_2(in11_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 11, 2); +static SENSOR_DEVICE_ATTR_2(in12_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 12, 2); +static SENSOR_DEVICE_ATTR_2(in13_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 13, 2); +static SENSOR_DEVICE_ATTR_2(in14_max, S_IWUSR | S_IRUGO, show_in_reg, + store_in_reg, 14, 2); + +static struct attribute *nct6775_attributes_in[15][5] = { + { + &sensor_dev_attr_in0_input.dev_attr.attr, + &sensor_dev_attr_in0_min.dev_attr.attr, + &sensor_dev_attr_in0_max.dev_attr.attr, + &sensor_dev_attr_in0_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in1_input.dev_attr.attr, + &sensor_dev_attr_in1_min.dev_attr.attr, + &sensor_dev_attr_in1_max.dev_attr.attr, + &sensor_dev_attr_in1_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in2_input.dev_attr.attr, + &sensor_dev_attr_in2_min.dev_attr.attr, + &sensor_dev_attr_in2_max.dev_attr.attr, + &sensor_dev_attr_in2_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in3_input.dev_attr.attr, + &sensor_dev_attr_in3_min.dev_attr.attr, + &sensor_dev_attr_in3_max.dev_attr.attr, + &sensor_dev_attr_in3_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in4_input.dev_attr.attr, + &sensor_dev_attr_in4_min.dev_attr.attr, + &sensor_dev_attr_in4_max.dev_attr.attr, + &sensor_dev_attr_in4_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in5_input.dev_attr.attr, + &sensor_dev_attr_in5_min.dev_attr.attr, + &sensor_dev_attr_in5_max.dev_attr.attr, + &sensor_dev_attr_in5_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in6_input.dev_attr.attr, + &sensor_dev_attr_in6_min.dev_attr.attr, + &sensor_dev_attr_in6_max.dev_attr.attr, + &sensor_dev_attr_in6_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in7_input.dev_attr.attr, + &sensor_dev_attr_in7_min.dev_attr.attr, + &sensor_dev_attr_in7_max.dev_attr.attr, + &sensor_dev_attr_in7_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in8_input.dev_attr.attr, + &sensor_dev_attr_in8_min.dev_attr.attr, + &sensor_dev_attr_in8_max.dev_attr.attr, + &sensor_dev_attr_in8_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in9_input.dev_attr.attr, + &sensor_dev_attr_in9_min.dev_attr.attr, + &sensor_dev_attr_in9_max.dev_attr.attr, + &sensor_dev_attr_in9_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in10_input.dev_attr.attr, + &sensor_dev_attr_in10_min.dev_attr.attr, + &sensor_dev_attr_in10_max.dev_attr.attr, + &sensor_dev_attr_in10_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in11_input.dev_attr.attr, + &sensor_dev_attr_in11_min.dev_attr.attr, + &sensor_dev_attr_in11_max.dev_attr.attr, + &sensor_dev_attr_in11_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in12_input.dev_attr.attr, + &sensor_dev_attr_in12_min.dev_attr.attr, + &sensor_dev_attr_in12_max.dev_attr.attr, + &sensor_dev_attr_in12_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in13_input.dev_attr.attr, + &sensor_dev_attr_in13_min.dev_attr.attr, + &sensor_dev_attr_in13_max.dev_attr.attr, + &sensor_dev_attr_in13_alarm.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_in14_input.dev_attr.attr, + &sensor_dev_attr_in14_min.dev_attr.attr, + &sensor_dev_attr_in14_max.dev_attr.attr, + &sensor_dev_attr_in14_alarm.dev_attr.attr, + NULL + }, +}; + +static const struct attribute_group nct6775_group_in[15] = { + { .attrs = nct6775_attributes_in[0] }, + { .attrs = nct6775_attributes_in[1] }, + { .attrs = nct6775_attributes_in[2] }, + { .attrs = nct6775_attributes_in[3] }, + { .attrs = nct6775_attributes_in[4] }, + { .attrs = nct6775_attributes_in[5] }, + { .attrs = nct6775_attributes_in[6] }, + { .attrs = nct6775_attributes_in[7] }, + { .attrs = nct6775_attributes_in[8] }, + { .attrs = nct6775_attributes_in[9] }, + { .attrs = nct6775_attributes_in[10] }, + { .attrs = nct6775_attributes_in[11] }, + { .attrs = nct6775_attributes_in[12] }, + { .attrs = nct6775_attributes_in[13] }, + { .attrs = nct6775_attributes_in[14] }, +}; + +static ssize_t +show_fan(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + return sprintf(buf, "%d\n", data->rpm[nr]); +} + +static ssize_t +show_fan_min(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + return sprintf(buf, "%d\n", + data->fan_from_reg_min(data->fan_min[nr], + data->fan_div[nr])); +} + +static ssize_t +show_fan_div(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + return sprintf(buf, "%u\n", div_from_reg(data->fan_div[nr])); +} + +static ssize_t +store_fan_min(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + unsigned long val; + int err; + unsigned int reg; + u8 new_div; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + + mutex_lock(&data->update_lock); + if (!data->has_fan_div) { + /* NCT6776F or NCT6779D; we know this is a 13 bit register */ + if (!val) { + val = 0xff1f; + } else { + if (val > 1350000U) + val = 135000U; + val = 1350000U / val; + val = (val & 0x1f) | ((val << 3) & 0xff00); + } + data->fan_min[nr] = val; + goto write_min; /* Leave fan divider alone */ + } + if (!val) { + /* No min limit, alarm disabled */ + data->fan_min[nr] = 255; + new_div = data->fan_div[nr]; /* No change */ + dev_info(dev, "fan%u low limit and alarm disabled\n", nr + 1); + goto write_div; + } + reg = 1350000U / val; + if (reg >= 128 * 255) { + /* + * Speed below this value cannot possibly be represented, + * even with the highest divider (128) + */ + data->fan_min[nr] = 254; + new_div = 7; /* 128 == (1 << 7) */ + dev_warn(dev, + "fan%u low limit %lu below minimum %u, set to minimum\n", + nr + 1, val, data->fan_from_reg_min(254, 7)); + } else if (!reg) { + /* + * Speed above this value cannot possibly be represented, + * even with the lowest divider (1) + */ + data->fan_min[nr] = 1; + new_div = 0; /* 1 == (1 << 0) */ + dev_warn(dev, + "fan%u low limit %lu above maximum %u, set to maximum\n", + nr + 1, val, data->fan_from_reg_min(1, 0)); + } else { + /* + * Automatically pick the best divider, i.e. the one such + * that the min limit will correspond to a register value + * in the 96..192 range + */ + new_div = 0; + while (reg > 192 && new_div < 7) { + reg >>= 1; + new_div++; + } + data->fan_min[nr] = reg; + } + +write_div: + /* + * Write both the fan clock divider (if it changed) and the new + * fan min (unconditionally) + */ + if (new_div != data->fan_div[nr]) { + dev_dbg(dev, "fan%u clock divider changed from %u to %u\n", + nr + 1, div_from_reg(data->fan_div[nr]), + div_from_reg(new_div)); + data->fan_div[nr] = new_div; + nct6775_write_fan_div_common(data, nr); + /* Give the chip time to sample a new speed value */ + data->last_updated = jiffies; + } + +write_min: + nct6775_write_value(data, data->REG_FAN_MIN[nr], data->fan_min[nr]); + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t +show_fan_pulses(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int p = data->fan_pulses[sattr->index]; + + return sprintf(buf, "%d\n", p ? : 4); +} + +static ssize_t +store_fan_pulses(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + unsigned long val; + int err; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + + if (val > 4) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->fan_pulses[nr] = val & 3; + nct6775_write_value(data, data->REG_FAN_PULSES[nr], val & 3); + mutex_unlock(&data->update_lock); + + return count; +} + +static struct sensor_device_attribute sda_fan_input[] = { + SENSOR_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0), + SENSOR_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1), + SENSOR_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2), + SENSOR_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3), + SENSOR_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 4), +}; + +static struct sensor_device_attribute sda_fan_alarm[] = { + SENSOR_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE), + SENSOR_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 1), + SENSOR_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 2), + SENSOR_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 3), + SENSOR_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, FAN_ALARM_BASE + 4), +}; + +static struct sensor_device_attribute sda_fan_min[] = { + SENSOR_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, + store_fan_min, 0), + SENSOR_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, + store_fan_min, 1), + SENSOR_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, + store_fan_min, 2), + SENSOR_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, + store_fan_min, 3), + SENSOR_ATTR(fan5_min, S_IWUSR | S_IRUGO, show_fan_min, + store_fan_min, 4), +}; + +static struct sensor_device_attribute sda_fan_pulses[] = { + SENSOR_ATTR(fan1_pulses, S_IWUSR | S_IRUGO, show_fan_pulses, + store_fan_pulses, 0), + SENSOR_ATTR(fan2_pulses, S_IWUSR | S_IRUGO, show_fan_pulses, + store_fan_pulses, 1), + SENSOR_ATTR(fan3_pulses, S_IWUSR | S_IRUGO, show_fan_pulses, + store_fan_pulses, 2), + SENSOR_ATTR(fan4_pulses, S_IWUSR | S_IRUGO, show_fan_pulses, + store_fan_pulses, 3), + SENSOR_ATTR(fan5_pulses, S_IWUSR | S_IRUGO, show_fan_pulses, + store_fan_pulses, 4), +}; + +static struct sensor_device_attribute sda_fan_div[] = { + SENSOR_ATTR(fan1_div, S_IRUGO, show_fan_div, NULL, 0), + SENSOR_ATTR(fan2_div, S_IRUGO, show_fan_div, NULL, 1), + SENSOR_ATTR(fan3_div, S_IRUGO, show_fan_div, NULL, 2), + SENSOR_ATTR(fan4_div, S_IRUGO, show_fan_div, NULL, 3), + SENSOR_ATTR(fan5_div, S_IRUGO, show_fan_div, NULL, 4), +}; + +static ssize_t +show_temp_label(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + return sprintf(buf, "%s\n", data->temp_label[data->temp_src[nr]]); +} + +static ssize_t +show_temp(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int index = sattr->index; + + return sprintf(buf, "%d\n", LM75_TEMP_FROM_REG(data->temp[index][nr])); +} + +static ssize_t +store_temp(struct device *dev, struct device_attribute *attr, const char *buf, + size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int index = sattr->index; + int err; + long val; + + err = kstrtol(buf, 10, &val); + if (err < 0) + return err; + + mutex_lock(&data->update_lock); + data->temp[index][nr] = LM75_TEMP_TO_REG(val); + nct6775_write_temp(data, data->reg_temp[index][nr], + data->temp[index][nr]); + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t +show_temp_offset(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + + return sprintf(buf, "%d\n", data->temp_offset[sattr->index] * 1000); +} + +static ssize_t +store_temp_offset(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + long val; + int err; + + err = kstrtol(buf, 10, &val); + if (err < 0) + return err; + + val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), -128, 127); + + mutex_lock(&data->update_lock); + data->temp_offset[nr] = val; + nct6775_write_value(data, data->REG_TEMP_OFFSET[nr], val); + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t +show_temp_type(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + return sprintf(buf, "%d\n", (int)data->temp_type[nr]); +} + +static ssize_t +store_temp_type(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + unsigned long val; + int err; + u8 vbat, diode, bit; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + + if (val != 1 && val != 3 && val != 4) + return -EINVAL; + + mutex_lock(&data->update_lock); + + data->temp_type[nr] = val; + vbat = nct6775_read_value(data, data->REG_VBAT) & ~(0x02 << nr); + diode = nct6775_read_value(data, data->REG_DIODE) & ~(0x02 << nr); + bit = 0x02 << nr; + switch (val) { + case 1: /* CPU diode (diode, current mode) */ + vbat |= bit; + diode |= bit; + break; + case 3: /* diode, voltage mode */ + vbat |= bit; + break; + case 4: /* thermistor */ + break; + } + nct6775_write_value(data, data->REG_VBAT, vbat); + nct6775_write_value(data, data->REG_DIODE, diode); + + mutex_unlock(&data->update_lock); + return count; +} + +static struct sensor_device_attribute_2 sda_temp_input[] = { + SENSOR_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0), + SENSOR_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0), + SENSOR_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0), + SENSOR_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 3, 0), + SENSOR_ATTR_2(temp5_input, S_IRUGO, show_temp, NULL, 4, 0), + SENSOR_ATTR_2(temp6_input, S_IRUGO, show_temp, NULL, 5, 0), + SENSOR_ATTR_2(temp7_input, S_IRUGO, show_temp, NULL, 6, 0), + SENSOR_ATTR_2(temp8_input, S_IRUGO, show_temp, NULL, 7, 0), + SENSOR_ATTR_2(temp9_input, S_IRUGO, show_temp, NULL, 8, 0), + SENSOR_ATTR_2(temp10_input, S_IRUGO, show_temp, NULL, 9, 0), +}; + +static struct sensor_device_attribute sda_temp_label[] = { + SENSOR_ATTR(temp1_label, S_IRUGO, show_temp_label, NULL, 0), + SENSOR_ATTR(temp2_label, S_IRUGO, show_temp_label, NULL, 1), + SENSOR_ATTR(temp3_label, S_IRUGO, show_temp_label, NULL, 2), + SENSOR_ATTR(temp4_label, S_IRUGO, show_temp_label, NULL, 3), + SENSOR_ATTR(temp5_label, S_IRUGO, show_temp_label, NULL, 4), + SENSOR_ATTR(temp6_label, S_IRUGO, show_temp_label, NULL, 5), + SENSOR_ATTR(temp7_label, S_IRUGO, show_temp_label, NULL, 6), + SENSOR_ATTR(temp8_label, S_IRUGO, show_temp_label, NULL, 7), + SENSOR_ATTR(temp9_label, S_IRUGO, show_temp_label, NULL, 8), + SENSOR_ATTR(temp10_label, S_IRUGO, show_temp_label, NULL, 9), +}; + +static struct sensor_device_attribute_2 sda_temp_max[] = { + SENSOR_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, store_temp, + 0, 1), + SENSOR_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, store_temp, + 1, 1), + SENSOR_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, store_temp, + 2, 1), + SENSOR_ATTR_2(temp4_max, S_IRUGO | S_IWUSR, show_temp, store_temp, + 3, 1), + SENSOR_ATTR_2(temp5_max, S_IRUGO | S_IWUSR, show_temp, store_temp, + 4, 1), + SENSOR_ATTR_2(temp6_max, S_IRUGO | S_IWUSR, show_temp, store_temp, + 5, 1), + SENSOR_ATTR_2(temp7_max, S_IRUGO | S_IWUSR, show_temp, store_temp, + 6, 1), + SENSOR_ATTR_2(temp8_max, S_IRUGO | S_IWUSR, show_temp, store_temp, + 7, 1), + SENSOR_ATTR_2(temp9_max, S_IRUGO | S_IWUSR, show_temp, store_temp, + 8, 1), + SENSOR_ATTR_2(temp10_max, S_IRUGO | S_IWUSR, show_temp, store_temp, + 9, 1), +}; + +static struct sensor_device_attribute_2 sda_temp_max_hyst[] = { + SENSOR_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, + 0, 2), + SENSOR_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, + 1, 2), + SENSOR_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, + 2, 2), + SENSOR_ATTR_2(temp4_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, + 3, 2), + SENSOR_ATTR_2(temp5_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, + 4, 2), + SENSOR_ATTR_2(temp6_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, + 5, 2), + SENSOR_ATTR_2(temp7_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, + 6, 2), + SENSOR_ATTR_2(temp8_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, + 7, 2), + SENSOR_ATTR_2(temp9_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, + 8, 2), + SENSOR_ATTR_2(temp10_max_hyst, S_IRUGO | S_IWUSR, show_temp, store_temp, + 9, 2), +}; + +static struct sensor_device_attribute_2 sda_temp_crit[] = { + SENSOR_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, + 0, 3), + SENSOR_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, + 1, 3), + SENSOR_ATTR_2(temp3_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, + 2, 3), + SENSOR_ATTR_2(temp4_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, + 3, 3), + SENSOR_ATTR_2(temp5_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, + 4, 3), + SENSOR_ATTR_2(temp6_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, + 5, 3), + SENSOR_ATTR_2(temp7_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, + 6, 3), + SENSOR_ATTR_2(temp8_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, + 7, 3), + SENSOR_ATTR_2(temp9_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, + 8, 3), + SENSOR_ATTR_2(temp10_crit, S_IRUGO | S_IWUSR, show_temp, store_temp, + 9, 3), +}; + +static struct sensor_device_attribute sda_temp_offset[] = { + SENSOR_ATTR(temp1_offset, S_IRUGO | S_IWUSR, show_temp_offset, + store_temp_offset, 0), + SENSOR_ATTR(temp2_offset, S_IRUGO | S_IWUSR, show_temp_offset, + store_temp_offset, 1), + SENSOR_ATTR(temp3_offset, S_IRUGO | S_IWUSR, show_temp_offset, + store_temp_offset, 2), + SENSOR_ATTR(temp4_offset, S_IRUGO | S_IWUSR, show_temp_offset, + store_temp_offset, 3), + SENSOR_ATTR(temp5_offset, S_IRUGO | S_IWUSR, show_temp_offset, + store_temp_offset, 4), + SENSOR_ATTR(temp6_offset, S_IRUGO | S_IWUSR, show_temp_offset, + store_temp_offset, 5), +}; + +static struct sensor_device_attribute sda_temp_type[] = { + SENSOR_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type, + store_temp_type, 0), + SENSOR_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type, + store_temp_type, 1), + SENSOR_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type, + store_temp_type, 2), + SENSOR_ATTR(temp4_type, S_IRUGO | S_IWUSR, show_temp_type, + store_temp_type, 3), + SENSOR_ATTR(temp5_type, S_IRUGO | S_IWUSR, show_temp_type, + store_temp_type, 4), + SENSOR_ATTR(temp6_type, S_IRUGO | S_IWUSR, show_temp_type, + store_temp_type, 5), +}; + +static struct sensor_device_attribute sda_temp_alarm[] = { + SENSOR_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, + TEMP_ALARM_BASE), + SENSOR_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, + TEMP_ALARM_BASE + 1), + SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, + TEMP_ALARM_BASE + 2), + SENSOR_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL, + TEMP_ALARM_BASE + 3), + SENSOR_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL, + TEMP_ALARM_BASE + 4), + SENSOR_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL, + TEMP_ALARM_BASE + 5), +}; + +#define NUM_TEMP_ALARM ARRAY_SIZE(sda_temp_alarm) + +static ssize_t +show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + + return sprintf(buf, "%d\n", !data->pwm_mode[sattr->index]); +} + +static ssize_t +store_pwm_mode(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + unsigned long val; + int err; + u8 reg; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + + if (val > 1) + return -EINVAL; + + /* Setting DC mode is not supported for all chips/channels */ + if (data->REG_PWM_MODE[nr] == 0) { + if (val) + return -EINVAL; + return count; + } + + mutex_lock(&data->update_lock); + data->pwm_mode[nr] = val; + reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]); + reg &= ~data->PWM_MODE_MASK[nr]; + if (val) + reg |= data->PWM_MODE_MASK[nr]; + nct6775_write_value(data, data->REG_PWM_MODE[nr], reg); + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t +show_pwm(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int index = sattr->index; + int pwm; + + /* + * For automatic fan control modes, show current pwm readings. + * Otherwise, show the configured value. + */ + if (index == 0 && data->pwm_enable[nr] > manual) + pwm = nct6775_read_value(data, data->REG_PWM_READ[nr]); + else + pwm = data->pwm[index][nr]; + + return sprintf(buf, "%d\n", pwm); +} + +static ssize_t +store_pwm(struct device *dev, struct device_attribute *attr, const char *buf, + size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int index = sattr->index; + unsigned long val; + int minval[7] = { 0, 1, 1, data->pwm[2][nr], 0, 0, 0 }; + int maxval[7] + = { 255, 255, data->pwm[3][nr] ? : 255, 255, 255, 255, 255 }; + int err; + u8 reg; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + val = clamp_val(val, minval[index], maxval[index]); + + mutex_lock(&data->update_lock); + data->pwm[index][nr] = val; + nct6775_write_value(data, data->REG_PWM[index][nr], val); + if (index == 2) { /* floor: disable if val == 0 */ + reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]); + reg &= 0x7f; + if (val) + reg |= 0x80; + nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg); + } + mutex_unlock(&data->update_lock); + return count; +} + +/* Returns 0 if OK, -EINVAL otherwise */ +static int check_trip_points(struct nct6775_data *data, int nr) +{ + int i; + + for (i = 0; i < data->auto_pwm_num - 1; i++) { + if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1]) + return -EINVAL; + } + for (i = 0; i < data->auto_pwm_num - 1; i++) { + if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1]) + return -EINVAL; + } + /* validate critical temperature and pwm if enabled (pwm > 0) */ + if (data->auto_pwm[nr][data->auto_pwm_num]) { + if (data->auto_temp[nr][data->auto_pwm_num - 1] > + data->auto_temp[nr][data->auto_pwm_num] || + data->auto_pwm[nr][data->auto_pwm_num - 1] > + data->auto_pwm[nr][data->auto_pwm_num]) + return -EINVAL; + } + return 0; +} + +static void pwm_update_registers(struct nct6775_data *data, int nr) +{ + u8 reg; + + switch (data->pwm_enable[nr]) { + case off: + case manual: + break; + case speed_cruise: + reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]); + reg = (reg & ~data->tolerance_mask) | + (data->target_speed_tolerance[nr] & data->tolerance_mask); + nct6775_write_value(data, data->REG_FAN_MODE[nr], reg); + nct6775_write_value(data, data->REG_TARGET[nr], + data->target_speed[nr] & 0xff); + if (data->REG_TOLERANCE_H) { + reg = (data->target_speed[nr] >> 8) & 0x0f; + reg |= (data->target_speed_tolerance[nr] & 0x38) << 1; + nct6775_write_value(data, + data->REG_TOLERANCE_H[nr], + reg); + } + break; + case thermal_cruise: + nct6775_write_value(data, data->REG_TARGET[nr], + data->target_temp[nr]); + /* intentional */ + default: + reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]); + reg = (reg & ~data->tolerance_mask) | + data->temp_tolerance[0][nr]; + nct6775_write_value(data, data->REG_FAN_MODE[nr], reg); + break; + } +} + +static ssize_t +show_pwm_enable(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + + return sprintf(buf, "%d\n", data->pwm_enable[sattr->index]); +} + +static ssize_t +store_pwm_enable(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + unsigned long val; + int err; + u16 reg; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + + if (val > sf4) + return -EINVAL; + + if (val == sf3 && data->kind != nct6775) + return -EINVAL; + + if (val == sf4 && check_trip_points(data, nr)) { + dev_err(dev, "Inconsistent trip points, not switching to SmartFan IV mode\n"); + dev_err(dev, "Adjust trip points and try again\n"); + return -EINVAL; + } + + mutex_lock(&data->update_lock); + data->pwm_enable[nr] = val; + if (val == off) { + /* + * turn off pwm control: select manual mode, set pwm to maximum + */ + data->pwm[0][nr] = 255; + nct6775_write_value(data, data->REG_PWM[0][nr], 255); + } + pwm_update_registers(data, nr); + reg = nct6775_read_value(data, data->REG_FAN_MODE[nr]); + reg &= 0x0f; + reg |= pwm_enable_to_reg(val) << 4; + nct6775_write_value(data, data->REG_FAN_MODE[nr], reg); + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t +show_pwm_temp_sel_common(struct nct6775_data *data, char *buf, int src) +{ + int i, sel = 0; + + for (i = 0; i < NUM_TEMP; i++) { + if (!(data->have_temp & (1 << i))) + continue; + if (src == data->temp_src[i]) { + sel = i + 1; + break; + } + } + + return sprintf(buf, "%d\n", sel); +} + +static ssize_t +show_pwm_temp_sel(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int index = sattr->index; + + return show_pwm_temp_sel_common(data, buf, data->pwm_temp_sel[index]); +} + +static ssize_t +store_pwm_temp_sel(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + unsigned long val; + int err, reg, src; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + if (val == 0 || val > NUM_TEMP) + return -EINVAL; + if (!(data->have_temp & (1 << (val - 1))) || !data->temp_src[val - 1]) + return -EINVAL; + + mutex_lock(&data->update_lock); + src = data->temp_src[val - 1]; + data->pwm_temp_sel[nr] = src; + reg = nct6775_read_value(data, data->REG_TEMP_SEL[nr]); + reg &= 0xe0; + reg |= src; + nct6775_write_value(data, data->REG_TEMP_SEL[nr], reg); + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t +show_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int index = sattr->index; + + return show_pwm_temp_sel_common(data, buf, + data->pwm_weight_temp_sel[index]); +} + +static ssize_t +store_pwm_weight_temp_sel(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + unsigned long val; + int err, reg, src; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + if (val > NUM_TEMP) + return -EINVAL; + if (val && (!(data->have_temp & (1 << (val - 1))) || + !data->temp_src[val - 1])) + return -EINVAL; + + mutex_lock(&data->update_lock); + if (val) { + src = data->temp_src[val - 1]; + data->pwm_weight_temp_sel[nr] = src; + reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]); + reg &= 0xe0; + reg |= (src | 0x80); + nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg); + } else { + data->pwm_weight_temp_sel[nr] = 0; + reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[nr]); + reg &= 0x7f; + nct6775_write_value(data, data->REG_WEIGHT_TEMP_SEL[nr], reg); + } + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t +show_target_temp(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + + return sprintf(buf, "%d\n", data->target_temp[sattr->index] * 1000); +} + +static ssize_t +store_target_temp(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + unsigned long val; + int err; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + + val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, + data->target_temp_mask); + + mutex_lock(&data->update_lock); + data->target_temp[nr] = val; + pwm_update_registers(data, nr); + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t +show_target_speed(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + + return sprintf(buf, "%d\n", + fan_from_reg16(data->target_speed[nr], + data->fan_div[nr])); +} + +static ssize_t +store_target_speed(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + unsigned long val; + int err; + u16 speed; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + + val = clamp_val(val, 0, 1350000U); + speed = fan_to_reg(val, data->fan_div[nr]); + + mutex_lock(&data->update_lock); + data->target_speed[nr] = speed; + pwm_update_registers(data, nr); + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t +show_temp_tolerance(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int index = sattr->index; + + return sprintf(buf, "%d\n", data->temp_tolerance[index][nr] * 1000); +} + +static ssize_t +store_temp_tolerance(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int index = sattr->index; + unsigned long val; + int err; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + + /* Limit tolerance as needed */ + val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, data->tolerance_mask); + + mutex_lock(&data->update_lock); + data->temp_tolerance[index][nr] = val; + if (index) + pwm_update_registers(data, nr); + else + nct6775_write_value(data, + data->REG_CRITICAL_TEMP_TOLERANCE[nr], + val); + mutex_unlock(&data->update_lock); + return count; +} + +/* + * Fan speed tolerance is a tricky beast, since the associated register is + * a tick counter, but the value is reported and configured as rpm. + * Compute resulting low and high rpm values and report the difference. + */ +static ssize_t +show_speed_tolerance(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + int low = data->target_speed[nr] - data->target_speed_tolerance[nr]; + int high = data->target_speed[nr] + data->target_speed_tolerance[nr]; + int tolerance; + + if (low <= 0) + low = 1; + if (high > 0xffff) + high = 0xffff; + if (high < low) + high = low; + + tolerance = (fan_from_reg16(low, data->fan_div[nr]) + - fan_from_reg16(high, data->fan_div[nr])) / 2; + + return sprintf(buf, "%d\n", tolerance); +} + +static ssize_t +store_speed_tolerance(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + int nr = sattr->index; + unsigned long val; + int err; + int low, high; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + + high = fan_from_reg16(data->target_speed[nr], + data->fan_div[nr]) + val; + low = fan_from_reg16(data->target_speed[nr], + data->fan_div[nr]) - val; + if (low <= 0) + low = 1; + if (high < low) + high = low; + + val = (fan_to_reg(low, data->fan_div[nr]) - + fan_to_reg(high, data->fan_div[nr])) / 2; + + /* Limit tolerance as needed */ + val = clamp_val(val, 0, data->speed_tolerance_limit); + + mutex_lock(&data->update_lock); + data->target_speed_tolerance[nr] = val; + pwm_update_registers(data, nr); + mutex_unlock(&data->update_lock); + return count; +} + +static SENSOR_DEVICE_ATTR_2(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 0); +static SENSOR_DEVICE_ATTR_2(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1, 0); +static SENSOR_DEVICE_ATTR_2(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2, 0); +static SENSOR_DEVICE_ATTR_2(pwm4, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3, 0); +static SENSOR_DEVICE_ATTR_2(pwm5, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4, 0); + +static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO, show_pwm_mode, + store_pwm_mode, 0); +static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO, show_pwm_mode, + store_pwm_mode, 1); +static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO, show_pwm_mode, + store_pwm_mode, 2); +static SENSOR_DEVICE_ATTR(pwm4_mode, S_IWUSR | S_IRUGO, show_pwm_mode, + store_pwm_mode, 3); +static SENSOR_DEVICE_ATTR(pwm5_mode, S_IWUSR | S_IRUGO, show_pwm_mode, + store_pwm_mode, 4); + +static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_enable, + store_pwm_enable, 0); +static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_enable, + store_pwm_enable, 1); +static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_enable, + store_pwm_enable, 2); +static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_enable, + store_pwm_enable, 3); +static SENSOR_DEVICE_ATTR(pwm5_enable, S_IWUSR | S_IRUGO, show_pwm_enable, + store_pwm_enable, 4); + +static SENSOR_DEVICE_ATTR(pwm1_temp_sel, S_IWUSR | S_IRUGO, + show_pwm_temp_sel, store_pwm_temp_sel, 0); +static SENSOR_DEVICE_ATTR(pwm2_temp_sel, S_IWUSR | S_IRUGO, + show_pwm_temp_sel, store_pwm_temp_sel, 1); +static SENSOR_DEVICE_ATTR(pwm3_temp_sel, S_IWUSR | S_IRUGO, + show_pwm_temp_sel, store_pwm_temp_sel, 2); +static SENSOR_DEVICE_ATTR(pwm4_temp_sel, S_IWUSR | S_IRUGO, + show_pwm_temp_sel, store_pwm_temp_sel, 3); +static SENSOR_DEVICE_ATTR(pwm5_temp_sel, S_IWUSR | S_IRUGO, + show_pwm_temp_sel, store_pwm_temp_sel, 4); + +static SENSOR_DEVICE_ATTR(pwm1_target_temp, S_IWUSR | S_IRUGO, show_target_temp, + store_target_temp, 0); +static SENSOR_DEVICE_ATTR(pwm2_target_temp, S_IWUSR | S_IRUGO, show_target_temp, + store_target_temp, 1); +static SENSOR_DEVICE_ATTR(pwm3_target_temp, S_IWUSR | S_IRUGO, show_target_temp, + store_target_temp, 2); +static SENSOR_DEVICE_ATTR(pwm4_target_temp, S_IWUSR | S_IRUGO, show_target_temp, + store_target_temp, 3); +static SENSOR_DEVICE_ATTR(pwm5_target_temp, S_IWUSR | S_IRUGO, show_target_temp, + store_target_temp, 4); + +static SENSOR_DEVICE_ATTR(fan1_target, S_IWUSR | S_IRUGO, show_target_speed, + store_target_speed, 0); +static SENSOR_DEVICE_ATTR(fan2_target, S_IWUSR | S_IRUGO, show_target_speed, + store_target_speed, 1); +static SENSOR_DEVICE_ATTR(fan3_target, S_IWUSR | S_IRUGO, show_target_speed, + store_target_speed, 2); +static SENSOR_DEVICE_ATTR(fan4_target, S_IWUSR | S_IRUGO, show_target_speed, + store_target_speed, 3); +static SENSOR_DEVICE_ATTR(fan5_target, S_IWUSR | S_IRUGO, show_target_speed, + store_target_speed, 4); + +static SENSOR_DEVICE_ATTR(fan1_tolerance, S_IWUSR | S_IRUGO, + show_speed_tolerance, store_speed_tolerance, 0); +static SENSOR_DEVICE_ATTR(fan2_tolerance, S_IWUSR | S_IRUGO, + show_speed_tolerance, store_speed_tolerance, 1); +static SENSOR_DEVICE_ATTR(fan3_tolerance, S_IWUSR | S_IRUGO, + show_speed_tolerance, store_speed_tolerance, 2); +static SENSOR_DEVICE_ATTR(fan4_tolerance, S_IWUSR | S_IRUGO, + show_speed_tolerance, store_speed_tolerance, 3); +static SENSOR_DEVICE_ATTR(fan5_tolerance, S_IWUSR | S_IRUGO, + show_speed_tolerance, store_speed_tolerance, 4); + +/* Smart Fan registers */ + +static ssize_t +show_weight_temp(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int index = sattr->index; + + return sprintf(buf, "%d\n", data->weight_temp[index][nr] * 1000); +} + +static ssize_t +store_weight_temp(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int index = sattr->index; + unsigned long val; + int err; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + + val = clamp_val(DIV_ROUND_CLOSEST(val, 1000), 0, 255); + + mutex_lock(&data->update_lock); + data->weight_temp[index][nr] = val; + nct6775_write_value(data, data->REG_WEIGHT_TEMP[index][nr], val); + mutex_unlock(&data->update_lock); + return count; +} + +static SENSOR_DEVICE_ATTR(pwm1_weight_temp_sel, S_IWUSR | S_IRUGO, + show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, + 0); +static SENSOR_DEVICE_ATTR(pwm2_weight_temp_sel, S_IWUSR | S_IRUGO, + show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, + 1); +static SENSOR_DEVICE_ATTR(pwm3_weight_temp_sel, S_IWUSR | S_IRUGO, + show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, + 2); +static SENSOR_DEVICE_ATTR(pwm4_weight_temp_sel, S_IWUSR | S_IRUGO, + show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, + 3); +static SENSOR_DEVICE_ATTR(pwm5_weight_temp_sel, S_IWUSR | S_IRUGO, + show_pwm_weight_temp_sel, store_pwm_weight_temp_sel, + 4); + +static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 0, 0); +static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 1, 0); +static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 2, 0); +static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 3, 0); +static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 4, 0); + +static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_tol, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 0, 1); +static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_tol, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 1, 1); +static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_tol, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 2, 1); +static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_tol, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 3, 1); +static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_tol, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 4, 1); + +static SENSOR_DEVICE_ATTR_2(pwm1_weight_temp_step_base, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 0, 2); +static SENSOR_DEVICE_ATTR_2(pwm2_weight_temp_step_base, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 1, 2); +static SENSOR_DEVICE_ATTR_2(pwm3_weight_temp_step_base, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 2, 2); +static SENSOR_DEVICE_ATTR_2(pwm4_weight_temp_step_base, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 3, 2); +static SENSOR_DEVICE_ATTR_2(pwm5_weight_temp_step_base, S_IWUSR | S_IRUGO, + show_weight_temp, store_weight_temp, 4, 2); + +static SENSOR_DEVICE_ATTR_2(pwm1_weight_duty_step, S_IWUSR | S_IRUGO, + show_pwm, store_pwm, 0, 5); +static SENSOR_DEVICE_ATTR_2(pwm2_weight_duty_step, S_IWUSR | S_IRUGO, + show_pwm, store_pwm, 1, 5); +static SENSOR_DEVICE_ATTR_2(pwm3_weight_duty_step, S_IWUSR | S_IRUGO, + show_pwm, store_pwm, 2, 5); +static SENSOR_DEVICE_ATTR_2(pwm4_weight_duty_step, S_IWUSR | S_IRUGO, + show_pwm, store_pwm, 3, 5); +static SENSOR_DEVICE_ATTR_2(pwm5_weight_duty_step, S_IWUSR | S_IRUGO, + show_pwm, store_pwm, 4, 5); + +/* duty_base is not supported on all chips */ +static struct sensor_device_attribute_2 sda_weight_duty_base[] = { + SENSOR_ATTR_2(pwm1_weight_duty_base, S_IWUSR | S_IRUGO, + show_pwm, store_pwm, 0, 6), + SENSOR_ATTR_2(pwm2_weight_duty_base, S_IWUSR | S_IRUGO, + show_pwm, store_pwm, 1, 6), + SENSOR_ATTR_2(pwm3_weight_duty_base, S_IWUSR | S_IRUGO, + show_pwm, store_pwm, 2, 6), + SENSOR_ATTR_2(pwm4_weight_duty_base, S_IWUSR | S_IRUGO, + show_pwm, store_pwm, 3, 6), + SENSOR_ATTR_2(pwm5_weight_duty_base, S_IWUSR | S_IRUGO, + show_pwm, store_pwm, 4, 6), +}; + +static ssize_t +show_fan_time(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int index = sattr->index; + + return sprintf(buf, "%d\n", + step_time_from_reg(data->fan_time[index][nr], + data->pwm_mode[nr])); +} + +static ssize_t +store_fan_time(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int index = sattr->index; + unsigned long val; + int err; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + + val = step_time_to_reg(val, data->pwm_mode[nr]); + mutex_lock(&data->update_lock); + data->fan_time[index][nr] = val; + nct6775_write_value(data, data->REG_FAN_TIME[index][nr], val); + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t +show_name(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + + return sprintf(buf, "%s\n", data->name); +} + +static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); + +static SENSOR_DEVICE_ATTR_2(pwm1_stop_time, S_IWUSR | S_IRUGO, show_fan_time, + store_fan_time, 0, 0); +static SENSOR_DEVICE_ATTR_2(pwm2_stop_time, S_IWUSR | S_IRUGO, show_fan_time, + store_fan_time, 1, 0); +static SENSOR_DEVICE_ATTR_2(pwm3_stop_time, S_IWUSR | S_IRUGO, show_fan_time, + store_fan_time, 2, 0); +static SENSOR_DEVICE_ATTR_2(pwm4_stop_time, S_IWUSR | S_IRUGO, show_fan_time, + store_fan_time, 3, 0); +static SENSOR_DEVICE_ATTR_2(pwm5_stop_time, S_IWUSR | S_IRUGO, show_fan_time, + store_fan_time, 4, 0); + +static SENSOR_DEVICE_ATTR_2(pwm1_step_up_time, S_IWUSR | S_IRUGO, show_fan_time, + store_fan_time, 0, 1); +static SENSOR_DEVICE_ATTR_2(pwm2_step_up_time, S_IWUSR | S_IRUGO, show_fan_time, + store_fan_time, 1, 1); +static SENSOR_DEVICE_ATTR_2(pwm3_step_up_time, S_IWUSR | S_IRUGO, show_fan_time, + store_fan_time, 2, 1); +static SENSOR_DEVICE_ATTR_2(pwm4_step_up_time, S_IWUSR | S_IRUGO, show_fan_time, + store_fan_time, 3, 1); +static SENSOR_DEVICE_ATTR_2(pwm5_step_up_time, S_IWUSR | S_IRUGO, show_fan_time, + store_fan_time, 4, 1); + +static SENSOR_DEVICE_ATTR_2(pwm1_step_down_time, S_IWUSR | S_IRUGO, + show_fan_time, store_fan_time, 0, 2); +static SENSOR_DEVICE_ATTR_2(pwm2_step_down_time, S_IWUSR | S_IRUGO, + show_fan_time, store_fan_time, 1, 2); +static SENSOR_DEVICE_ATTR_2(pwm3_step_down_time, S_IWUSR | S_IRUGO, + show_fan_time, store_fan_time, 2, 2); +static SENSOR_DEVICE_ATTR_2(pwm4_step_down_time, S_IWUSR | S_IRUGO, + show_fan_time, store_fan_time, 3, 2); +static SENSOR_DEVICE_ATTR_2(pwm5_step_down_time, S_IWUSR | S_IRUGO, + show_fan_time, store_fan_time, 4, 2); + +static SENSOR_DEVICE_ATTR_2(pwm1_start, S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 0, 1); +static SENSOR_DEVICE_ATTR_2(pwm2_start, S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 1, 1); +static SENSOR_DEVICE_ATTR_2(pwm3_start, S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 2, 1); +static SENSOR_DEVICE_ATTR_2(pwm4_start, S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 3, 1); +static SENSOR_DEVICE_ATTR_2(pwm5_start, S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 4, 1); + +static SENSOR_DEVICE_ATTR_2(pwm1_floor, S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 0, 2); +static SENSOR_DEVICE_ATTR_2(pwm2_floor, S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 1, 2); +static SENSOR_DEVICE_ATTR_2(pwm3_floor, S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 2, 2); +static SENSOR_DEVICE_ATTR_2(pwm4_floor, S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 3, 2); +static SENSOR_DEVICE_ATTR_2(pwm5_floor, S_IWUSR | S_IRUGO, show_pwm, + store_pwm, 4, 2); + +static SENSOR_DEVICE_ATTR_2(pwm1_temp_tolerance, S_IWUSR | S_IRUGO, + show_temp_tolerance, store_temp_tolerance, 0, 0); +static SENSOR_DEVICE_ATTR_2(pwm2_temp_tolerance, S_IWUSR | S_IRUGO, + show_temp_tolerance, store_temp_tolerance, 1, 0); +static SENSOR_DEVICE_ATTR_2(pwm3_temp_tolerance, S_IWUSR | S_IRUGO, + show_temp_tolerance, store_temp_tolerance, 2, 0); +static SENSOR_DEVICE_ATTR_2(pwm4_temp_tolerance, S_IWUSR | S_IRUGO, + show_temp_tolerance, store_temp_tolerance, 3, 0); +static SENSOR_DEVICE_ATTR_2(pwm5_temp_tolerance, S_IWUSR | S_IRUGO, + show_temp_tolerance, store_temp_tolerance, 4, 0); + +static SENSOR_DEVICE_ATTR_2(pwm1_crit_temp_tolerance, S_IWUSR | S_IRUGO, + show_temp_tolerance, store_temp_tolerance, 0, 1); +static SENSOR_DEVICE_ATTR_2(pwm2_crit_temp_tolerance, S_IWUSR | S_IRUGO, + show_temp_tolerance, store_temp_tolerance, 1, 1); +static SENSOR_DEVICE_ATTR_2(pwm3_crit_temp_tolerance, S_IWUSR | S_IRUGO, + show_temp_tolerance, store_temp_tolerance, 2, 1); +static SENSOR_DEVICE_ATTR_2(pwm4_crit_temp_tolerance, S_IWUSR | S_IRUGO, + show_temp_tolerance, store_temp_tolerance, 3, 1); +static SENSOR_DEVICE_ATTR_2(pwm5_crit_temp_tolerance, S_IWUSR | S_IRUGO, + show_temp_tolerance, store_temp_tolerance, 4, 1); + +/* pwm_max is not supported on all chips */ +static struct sensor_device_attribute_2 sda_pwm_max[] = { + SENSOR_ATTR_2(pwm1_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm, + 0, 3), + SENSOR_ATTR_2(pwm2_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm, + 1, 3), + SENSOR_ATTR_2(pwm3_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm, + 2, 3), + SENSOR_ATTR_2(pwm4_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm, + 3, 3), + SENSOR_ATTR_2(pwm5_max, S_IWUSR | S_IRUGO, show_pwm, store_pwm, + 4, 3), +}; + +/* pwm_step is not supported on all chips */ +static struct sensor_device_attribute_2 sda_pwm_step[] = { + SENSOR_ATTR_2(pwm1_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0, 4), + SENSOR_ATTR_2(pwm2_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1, 4), + SENSOR_ATTR_2(pwm3_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2, 4), + SENSOR_ATTR_2(pwm4_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 3, 4), + SENSOR_ATTR_2(pwm5_step, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 4, 4), +}; + +static struct attribute *nct6775_attributes_pwm[5][20] = { + { + &sensor_dev_attr_pwm1.dev_attr.attr, + &sensor_dev_attr_pwm1_mode.dev_attr.attr, + &sensor_dev_attr_pwm1_enable.dev_attr.attr, + &sensor_dev_attr_pwm1_temp_sel.dev_attr.attr, + &sensor_dev_attr_pwm1_temp_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm1_crit_temp_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm1_target_temp.dev_attr.attr, + &sensor_dev_attr_fan1_target.dev_attr.attr, + &sensor_dev_attr_fan1_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm1_stop_time.dev_attr.attr, + &sensor_dev_attr_pwm1_step_up_time.dev_attr.attr, + &sensor_dev_attr_pwm1_step_down_time.dev_attr.attr, + &sensor_dev_attr_pwm1_start.dev_attr.attr, + &sensor_dev_attr_pwm1_floor.dev_attr.attr, + &sensor_dev_attr_pwm1_weight_temp_sel.dev_attr.attr, + &sensor_dev_attr_pwm1_weight_temp_step.dev_attr.attr, + &sensor_dev_attr_pwm1_weight_temp_step_tol.dev_attr.attr, + &sensor_dev_attr_pwm1_weight_temp_step_base.dev_attr.attr, + &sensor_dev_attr_pwm1_weight_duty_step.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_pwm2.dev_attr.attr, + &sensor_dev_attr_pwm2_mode.dev_attr.attr, + &sensor_dev_attr_pwm2_enable.dev_attr.attr, + &sensor_dev_attr_pwm2_temp_sel.dev_attr.attr, + &sensor_dev_attr_pwm2_temp_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm2_crit_temp_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm2_target_temp.dev_attr.attr, + &sensor_dev_attr_fan2_target.dev_attr.attr, + &sensor_dev_attr_fan2_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm2_stop_time.dev_attr.attr, + &sensor_dev_attr_pwm2_step_up_time.dev_attr.attr, + &sensor_dev_attr_pwm2_step_down_time.dev_attr.attr, + &sensor_dev_attr_pwm2_start.dev_attr.attr, + &sensor_dev_attr_pwm2_floor.dev_attr.attr, + &sensor_dev_attr_pwm2_weight_temp_sel.dev_attr.attr, + &sensor_dev_attr_pwm2_weight_temp_step.dev_attr.attr, + &sensor_dev_attr_pwm2_weight_temp_step_tol.dev_attr.attr, + &sensor_dev_attr_pwm2_weight_temp_step_base.dev_attr.attr, + &sensor_dev_attr_pwm2_weight_duty_step.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_pwm3.dev_attr.attr, + &sensor_dev_attr_pwm3_mode.dev_attr.attr, + &sensor_dev_attr_pwm3_enable.dev_attr.attr, + &sensor_dev_attr_pwm3_temp_sel.dev_attr.attr, + &sensor_dev_attr_pwm3_temp_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm3_crit_temp_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm3_target_temp.dev_attr.attr, + &sensor_dev_attr_fan3_target.dev_attr.attr, + &sensor_dev_attr_fan3_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm3_stop_time.dev_attr.attr, + &sensor_dev_attr_pwm3_step_up_time.dev_attr.attr, + &sensor_dev_attr_pwm3_step_down_time.dev_attr.attr, + &sensor_dev_attr_pwm3_start.dev_attr.attr, + &sensor_dev_attr_pwm3_floor.dev_attr.attr, + &sensor_dev_attr_pwm3_weight_temp_sel.dev_attr.attr, + &sensor_dev_attr_pwm3_weight_temp_step.dev_attr.attr, + &sensor_dev_attr_pwm3_weight_temp_step_tol.dev_attr.attr, + &sensor_dev_attr_pwm3_weight_temp_step_base.dev_attr.attr, + &sensor_dev_attr_pwm3_weight_duty_step.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_pwm4.dev_attr.attr, + &sensor_dev_attr_pwm4_mode.dev_attr.attr, + &sensor_dev_attr_pwm4_enable.dev_attr.attr, + &sensor_dev_attr_pwm4_temp_sel.dev_attr.attr, + &sensor_dev_attr_pwm4_temp_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm4_crit_temp_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm4_target_temp.dev_attr.attr, + &sensor_dev_attr_fan4_target.dev_attr.attr, + &sensor_dev_attr_fan4_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm4_stop_time.dev_attr.attr, + &sensor_dev_attr_pwm4_step_up_time.dev_attr.attr, + &sensor_dev_attr_pwm4_step_down_time.dev_attr.attr, + &sensor_dev_attr_pwm4_start.dev_attr.attr, + &sensor_dev_attr_pwm4_floor.dev_attr.attr, + &sensor_dev_attr_pwm4_weight_temp_sel.dev_attr.attr, + &sensor_dev_attr_pwm4_weight_temp_step.dev_attr.attr, + &sensor_dev_attr_pwm4_weight_temp_step_tol.dev_attr.attr, + &sensor_dev_attr_pwm4_weight_temp_step_base.dev_attr.attr, + &sensor_dev_attr_pwm4_weight_duty_step.dev_attr.attr, + NULL + }, + { + &sensor_dev_attr_pwm5.dev_attr.attr, + &sensor_dev_attr_pwm5_mode.dev_attr.attr, + &sensor_dev_attr_pwm5_enable.dev_attr.attr, + &sensor_dev_attr_pwm5_temp_sel.dev_attr.attr, + &sensor_dev_attr_pwm5_temp_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm5_crit_temp_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm5_target_temp.dev_attr.attr, + &sensor_dev_attr_fan5_target.dev_attr.attr, + &sensor_dev_attr_fan5_tolerance.dev_attr.attr, + &sensor_dev_attr_pwm5_stop_time.dev_attr.attr, + &sensor_dev_attr_pwm5_step_up_time.dev_attr.attr, + &sensor_dev_attr_pwm5_step_down_time.dev_attr.attr, + &sensor_dev_attr_pwm5_start.dev_attr.attr, + &sensor_dev_attr_pwm5_floor.dev_attr.attr, + &sensor_dev_attr_pwm5_weight_temp_sel.dev_attr.attr, + &sensor_dev_attr_pwm5_weight_temp_step.dev_attr.attr, + &sensor_dev_attr_pwm5_weight_temp_step_tol.dev_attr.attr, + &sensor_dev_attr_pwm5_weight_temp_step_base.dev_attr.attr, + &sensor_dev_attr_pwm5_weight_duty_step.dev_attr.attr, + NULL + }, +}; + +static const struct attribute_group nct6775_group_pwm[5] = { + { .attrs = nct6775_attributes_pwm[0] }, + { .attrs = nct6775_attributes_pwm[1] }, + { .attrs = nct6775_attributes_pwm[2] }, + { .attrs = nct6775_attributes_pwm[3] }, + { .attrs = nct6775_attributes_pwm[4] }, +}; + +static ssize_t +show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + + return sprintf(buf, "%d\n", data->auto_pwm[sattr->nr][sattr->index]); +} + +static ssize_t +store_auto_pwm(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int point = sattr->index; + unsigned long val; + int err; + u8 reg; + + err = kstrtoul(buf, 10, &val); + if (err < 0) + return err; + if (val > 255) + return -EINVAL; + + if (point == data->auto_pwm_num) { + if (data->kind != nct6775 && !val) + return -EINVAL; + if (data->kind != nct6779 && val) + val = 0xff; + } + + mutex_lock(&data->update_lock); + data->auto_pwm[nr][point] = val; + if (point < data->auto_pwm_num) { + nct6775_write_value(data, + NCT6775_AUTO_PWM(data, nr, point), + data->auto_pwm[nr][point]); + } else { + switch (data->kind) { + case nct6775: + /* disable if needed (pwm == 0) */ + reg = nct6775_read_value(data, + NCT6775_REG_CRITICAL_ENAB[nr]); + if (val) + reg |= 0x02; + else + reg &= ~0x02; + nct6775_write_value(data, NCT6775_REG_CRITICAL_ENAB[nr], + reg); + break; + case nct6776: + break; /* always enabled, nothing to do */ + case nct6779: + nct6775_write_value(data, NCT6779_REG_CRITICAL_PWM[nr], + val); + reg = nct6775_read_value(data, + NCT6779_REG_CRITICAL_PWM_ENABLE[nr]); + if (val == 255) + reg &= ~0x01; + else + reg |= 0x01; + nct6775_write_value(data, + NCT6779_REG_CRITICAL_PWM_ENABLE[nr], + reg); + break; + } + } + mutex_unlock(&data->update_lock); + return count; +} + +static ssize_t +show_auto_temp(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int point = sattr->index; + + /* + * We don't know for sure if the temperature is signed or unsigned. + * Assume it is unsigned. + */ + return sprintf(buf, "%d\n", data->auto_temp[nr][point] * 1000); +} + +static ssize_t +store_auto_temp(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); + int nr = sattr->nr; + int point = sattr->index; + unsigned long val; + int err; + + err = kstrtoul(buf, 10, &val); + if (err) + return err; + if (val > 255000) + return -EINVAL; + + mutex_lock(&data->update_lock); + data->auto_temp[nr][point] = DIV_ROUND_CLOSEST(val, 1000); + if (point < data->auto_pwm_num) { + nct6775_write_value(data, + NCT6775_AUTO_TEMP(data, nr, point), + data->auto_temp[nr][point]); + } else { + nct6775_write_value(data, data->REG_CRITICAL_TEMP[nr], + data->auto_temp[nr][point]); + } + mutex_unlock(&data->update_lock); + return count; +} + +/* + * The number of auto-point trip points is chip dependent. + * Need to check support while generating/removing attribute files. + */ +static struct sensor_device_attribute_2 sda_auto_pwm_arrays[] = { + SENSOR_ATTR_2(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 0, 0), + SENSOR_ATTR_2(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 0, 0), + SENSOR_ATTR_2(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 0, 1), + SENSOR_ATTR_2(pwm1_auto_point2_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 0, 1), + SENSOR_ATTR_2(pwm1_auto_point3_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 0, 2), + SENSOR_ATTR_2(pwm1_auto_point3_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 0, 2), + SENSOR_ATTR_2(pwm1_auto_point4_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 0, 3), + SENSOR_ATTR_2(pwm1_auto_point4_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 0, 3), + SENSOR_ATTR_2(pwm1_auto_point5_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 0, 4), + SENSOR_ATTR_2(pwm1_auto_point5_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 0, 4), + SENSOR_ATTR_2(pwm1_auto_point6_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 0, 5), + SENSOR_ATTR_2(pwm1_auto_point6_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 0, 5), + SENSOR_ATTR_2(pwm1_auto_point7_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 0, 6), + SENSOR_ATTR_2(pwm1_auto_point7_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 0, 6), + + SENSOR_ATTR_2(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 1, 0), + SENSOR_ATTR_2(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 1, 0), + SENSOR_ATTR_2(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 1, 1), + SENSOR_ATTR_2(pwm2_auto_point2_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 1, 1), + SENSOR_ATTR_2(pwm2_auto_point3_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 1, 2), + SENSOR_ATTR_2(pwm2_auto_point3_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 1, 2), + SENSOR_ATTR_2(pwm2_auto_point4_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 1, 3), + SENSOR_ATTR_2(pwm2_auto_point4_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 1, 3), + SENSOR_ATTR_2(pwm2_auto_point5_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 1, 4), + SENSOR_ATTR_2(pwm2_auto_point5_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 1, 4), + SENSOR_ATTR_2(pwm2_auto_point6_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 1, 5), + SENSOR_ATTR_2(pwm2_auto_point6_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 1, 5), + SENSOR_ATTR_2(pwm2_auto_point7_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 1, 6), + SENSOR_ATTR_2(pwm2_auto_point7_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 1, 6), + + SENSOR_ATTR_2(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 2, 0), + SENSOR_ATTR_2(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 2, 0), + SENSOR_ATTR_2(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 2, 1), + SENSOR_ATTR_2(pwm3_auto_point2_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 2, 1), + SENSOR_ATTR_2(pwm3_auto_point3_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 2, 2), + SENSOR_ATTR_2(pwm3_auto_point3_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 2, 2), + SENSOR_ATTR_2(pwm3_auto_point4_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 2, 3), + SENSOR_ATTR_2(pwm3_auto_point4_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 2, 3), + SENSOR_ATTR_2(pwm3_auto_point5_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 2, 4), + SENSOR_ATTR_2(pwm3_auto_point5_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 2, 4), + SENSOR_ATTR_2(pwm3_auto_point6_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 2, 5), + SENSOR_ATTR_2(pwm3_auto_point6_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 2, 5), + SENSOR_ATTR_2(pwm3_auto_point7_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 2, 6), + SENSOR_ATTR_2(pwm3_auto_point7_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 2, 6), + + SENSOR_ATTR_2(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 3, 0), + SENSOR_ATTR_2(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 3, 0), + SENSOR_ATTR_2(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 3, 1), + SENSOR_ATTR_2(pwm4_auto_point2_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 3, 1), + SENSOR_ATTR_2(pwm4_auto_point3_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 3, 2), + SENSOR_ATTR_2(pwm4_auto_point3_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 3, 2), + SENSOR_ATTR_2(pwm4_auto_point4_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 3, 3), + SENSOR_ATTR_2(pwm4_auto_point4_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 3, 3), + SENSOR_ATTR_2(pwm4_auto_point5_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 3, 4), + SENSOR_ATTR_2(pwm4_auto_point5_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 3, 4), + SENSOR_ATTR_2(pwm4_auto_point6_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 3, 5), + SENSOR_ATTR_2(pwm4_auto_point6_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 3, 5), + SENSOR_ATTR_2(pwm4_auto_point7_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 3, 6), + SENSOR_ATTR_2(pwm4_auto_point7_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 3, 6), + + SENSOR_ATTR_2(pwm5_auto_point1_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 4, 0), + SENSOR_ATTR_2(pwm5_auto_point1_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 4, 0), + SENSOR_ATTR_2(pwm5_auto_point2_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 4, 1), + SENSOR_ATTR_2(pwm5_auto_point2_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 4, 1), + SENSOR_ATTR_2(pwm5_auto_point3_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 4, 2), + SENSOR_ATTR_2(pwm5_auto_point3_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 4, 2), + SENSOR_ATTR_2(pwm5_auto_point4_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 4, 3), + SENSOR_ATTR_2(pwm5_auto_point4_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 4, 3), + SENSOR_ATTR_2(pwm5_auto_point5_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 4, 4), + SENSOR_ATTR_2(pwm5_auto_point5_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 4, 4), + SENSOR_ATTR_2(pwm5_auto_point6_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 4, 5), + SENSOR_ATTR_2(pwm5_auto_point6_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 4, 5), + SENSOR_ATTR_2(pwm5_auto_point7_pwm, S_IWUSR | S_IRUGO, + show_auto_pwm, store_auto_pwm, 4, 6), + SENSOR_ATTR_2(pwm5_auto_point7_temp, S_IWUSR | S_IRUGO, + show_auto_temp, store_auto_temp, 4, 6), +}; + +static ssize_t +show_vid(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm)); +} + +static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL); + +/* Case open detection */ + +static ssize_t +clear_caseopen(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct nct6775_sio_data *sio_data = dev->platform_data; + int nr = to_sensor_dev_attr(attr)->index - INTRUSION_ALARM_BASE; + unsigned long val; + u8 reg; + int ret; + + if (kstrtoul(buf, 10, &val) || val != 0) + return -EINVAL; + + mutex_lock(&data->update_lock); + + /* + * Use CR registers to clear caseopen status. + * The CR registers are the same for all chips, and not all chips + * support clearing the caseopen status through "regular" registers. + */ + ret = superio_enter(sio_data->sioreg); + if (ret) { + count = ret; + goto error; + } + + superio_select(sio_data->sioreg, NCT6775_LD_ACPI); + reg = superio_inb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr]); + reg |= NCT6775_CR_CASEOPEN_CLR_MASK[nr]; + superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg); + reg &= ~NCT6775_CR_CASEOPEN_CLR_MASK[nr]; + superio_outb(sio_data->sioreg, NCT6775_REG_CR_CASEOPEN_CLR[nr], reg); + superio_exit(sio_data->sioreg); + + data->valid = false; /* Force cache refresh */ +error: + mutex_unlock(&data->update_lock); + return count; +} + +static struct sensor_device_attribute sda_caseopen[] = { + SENSOR_ATTR(intrusion0_alarm, S_IWUSR | S_IRUGO, show_alarm, + clear_caseopen, INTRUSION_ALARM_BASE), + SENSOR_ATTR(intrusion1_alarm, S_IWUSR | S_IRUGO, show_alarm, + clear_caseopen, INTRUSION_ALARM_BASE + 1), +}; + +/* + * Driver and device management + */ + +static void nct6775_device_remove_files(struct device *dev) +{ + /* + * some entries in the following arrays may not have been used in + * device_create_file(), but device_remove_file() will ignore them + */ + int i; + struct nct6775_data *data = dev_get_drvdata(dev); + + for (i = 0; i < data->pwm_num; i++) + sysfs_remove_group(&dev->kobj, &nct6775_group_pwm[i]); + + for (i = 0; i < ARRAY_SIZE(sda_pwm_max); i++) + device_remove_file(dev, &sda_pwm_max[i].dev_attr); + + for (i = 0; i < ARRAY_SIZE(sda_pwm_step); i++) + device_remove_file(dev, &sda_pwm_step[i].dev_attr); + + for (i = 0; i < ARRAY_SIZE(sda_weight_duty_base); i++) + device_remove_file(dev, &sda_weight_duty_base[i].dev_attr); + + for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++) + device_remove_file(dev, &sda_auto_pwm_arrays[i].dev_attr); + + for (i = 0; i < data->in_num; i++) + sysfs_remove_group(&dev->kobj, &nct6775_group_in[i]); + + for (i = 0; i < 5; i++) { + device_remove_file(dev, &sda_fan_input[i].dev_attr); + device_remove_file(dev, &sda_fan_alarm[i].dev_attr); + device_remove_file(dev, &sda_fan_div[i].dev_attr); + device_remove_file(dev, &sda_fan_min[i].dev_attr); + device_remove_file(dev, &sda_fan_pulses[i].dev_attr); + } + for (i = 0; i < NUM_TEMP; i++) { + if (!(data->have_temp & (1 << i))) + continue; + device_remove_file(dev, &sda_temp_input[i].dev_attr); + device_remove_file(dev, &sda_temp_label[i].dev_attr); + device_remove_file(dev, &sda_temp_max[i].dev_attr); + device_remove_file(dev, &sda_temp_max_hyst[i].dev_attr); + device_remove_file(dev, &sda_temp_crit[i].dev_attr); + if (!(data->have_temp_fixed & (1 << i))) + continue; + device_remove_file(dev, &sda_temp_type[i].dev_attr); + device_remove_file(dev, &sda_temp_offset[i].dev_attr); + if (i >= NUM_TEMP_ALARM) + continue; + device_remove_file(dev, &sda_temp_alarm[i].dev_attr); + } + + device_remove_file(dev, &sda_caseopen[0].dev_attr); + device_remove_file(dev, &sda_caseopen[1].dev_attr); + + device_remove_file(dev, &dev_attr_name); + device_remove_file(dev, &dev_attr_cpu0_vid); +} + +/* Get the monitoring functions started */ +static inline void nct6775_init_device(struct nct6775_data *data) +{ + int i; + u8 tmp, diode; + + /* Start monitoring if needed */ + if (data->REG_CONFIG) { + tmp = nct6775_read_value(data, data->REG_CONFIG); + if (!(tmp & 0x01)) + nct6775_write_value(data, data->REG_CONFIG, tmp | 0x01); + } + + /* Enable temperature sensors if needed */ + for (i = 0; i < NUM_TEMP; i++) { + if (!(data->have_temp & (1 << i))) + continue; + if (!data->reg_temp_config[i]) + continue; + tmp = nct6775_read_value(data, data->reg_temp_config[i]); + if (tmp & 0x01) + nct6775_write_value(data, data->reg_temp_config[i], + tmp & 0xfe); + } + + /* Enable VBAT monitoring if needed */ + tmp = nct6775_read_value(data, data->REG_VBAT); + if (!(tmp & 0x01)) + nct6775_write_value(data, data->REG_VBAT, tmp | 0x01); + + diode = nct6775_read_value(data, data->REG_DIODE); + + for (i = 0; i < data->temp_fixed_num; i++) { + if (!(data->have_temp_fixed & (1 << i))) + continue; + if ((tmp & (0x02 << i))) /* diode */ + data->temp_type[i] = 3 - ((diode >> i) & 0x02); + else /* thermistor */ + data->temp_type[i] = 4; + } +} + +static int +nct6775_check_fan_inputs(const struct nct6775_sio_data *sio_data, + struct nct6775_data *data) +{ + int regval; + bool fan3pin, fan3min, fan4pin, fan4min, fan5pin; + bool pwm3pin, pwm4pin, pwm5pin; + int ret; + + ret = superio_enter(sio_data->sioreg); + if (ret) + return ret; + + /* fan4 and fan5 share some pins with the GPIO and serial flash */ + if (data->kind == nct6775) { + regval = superio_inb(sio_data->sioreg, 0x2c); + + fan3pin = regval & (1 << 6); + fan3min = fan3pin; + pwm3pin = regval & (1 << 7); + + /* On NCT6775, fan4 shares pins with the fdc interface */ + fan4pin = !(superio_inb(sio_data->sioreg, 0x2A) & 0x80); + fan4min = 0; + fan5pin = 0; + pwm4pin = 0; + pwm5pin = 0; + } else if (data->kind == nct6776) { + bool gpok = superio_inb(sio_data->sioreg, 0x27) & 0x80; + + superio_select(sio_data->sioreg, NCT6775_LD_HWM); + regval = superio_inb(sio_data->sioreg, SIO_REG_ENABLE); + + if (regval & 0x80) + fan3pin = gpok; + else + fan3pin = !(superio_inb(sio_data->sioreg, 0x24) & 0x40); + + if (regval & 0x40) + fan4pin = gpok; + else + fan4pin = superio_inb(sio_data->sioreg, 0x1C) & 0x01; + + if (regval & 0x20) + fan5pin = gpok; + else + fan5pin = superio_inb(sio_data->sioreg, 0x1C) & 0x02; + + fan4min = fan4pin; + fan3min = fan3pin; + pwm3pin = fan3pin; + pwm4pin = 0; + pwm5pin = 0; + } else { /* NCT6779D */ + regval = superio_inb(sio_data->sioreg, 0x1c); + + fan3pin = !(regval & (1 << 5)); + fan4pin = !(regval & (1 << 6)); + fan5pin = !(regval & (1 << 7)); + + pwm3pin = !(regval & (1 << 0)); + pwm4pin = !(regval & (1 << 1)); + pwm5pin = !(regval & (1 << 2)); + + fan3min = fan3pin; + fan4min = fan4pin; + } + + superio_exit(sio_data->sioreg); + + data->has_fan = data->has_fan_min = 0x03; /* fan1 and fan2 */ + data->has_fan |= fan3pin << 2; + data->has_fan_min |= fan3min << 2; + + data->has_fan |= (fan4pin << 3) | (fan5pin << 4); + data->has_fan_min |= (fan4min << 3) | (fan5pin << 4); + + data->has_pwm = 0x03 | (pwm3pin << 2) | (pwm4pin << 3) | (pwm5pin << 4); + + return 0; +} + +static void add_temp_sensors(struct nct6775_data *data, const u16 *regp, + int *available, int *mask) +{ + int i; + u8 src; + + for (i = 0; i < data->pwm_num && *available; i++) { + int index; + + if (!regp[i]) + continue; + src = nct6775_read_value(data, regp[i]); + src &= 0x1f; + if (!src || (*mask & (1 << src))) + continue; + if (src >= data->temp_label_num || + !strlen(data->temp_label[src])) + continue; + + index = __ffs(*available); + nct6775_write_value(data, data->REG_TEMP_SOURCE[index], src); + *available &= ~(1 << index); + *mask |= 1 << src; + } +} + +static int nct6775_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct nct6775_sio_data *sio_data = dev->platform_data; + struct nct6775_data *data; + struct resource *res; + int i, s, err = 0; + int src, mask, available; + const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config; + const u16 *reg_temp_alternate, *reg_temp_crit; + int num_reg_temp; + bool have_vid = false; + u8 cr2a; + + res = platform_get_resource(pdev, IORESOURCE_IO, 0); + if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH, + DRVNAME)) + return -EBUSY; + + data = devm_kzalloc(&pdev->dev, sizeof(struct nct6775_data), + GFP_KERNEL); + if (!data) + return -ENOMEM; + + data->kind = sio_data->kind; + data->addr = res->start; + mutex_init(&data->update_lock); + data->name = nct6775_device_names[data->kind]; + data->bank = 0xff; /* Force initial bank selection */ + platform_set_drvdata(pdev, data); + + switch (data->kind) { + case nct6775: + data->in_num = 9; + data->pwm_num = 3; + data->auto_pwm_num = 6; + data->has_fan_div = true; + data->temp_fixed_num = 3; + + data->ALARM_BITS = NCT6775_ALARM_BITS; + + data->fan_from_reg = fan_from_reg16; + data->fan_from_reg_min = fan_from_reg8; + data->target_temp_mask = 0x7f; + data->tolerance_mask = 0x0f; + data->speed_tolerance_limit = 15; + + data->temp_label = nct6775_temp_label; + data->temp_label_num = ARRAY_SIZE(nct6775_temp_label); + + data->REG_CONFIG = NCT6775_REG_CONFIG; + data->REG_VBAT = NCT6775_REG_VBAT; + data->REG_DIODE = NCT6775_REG_DIODE; + data->REG_VIN = NCT6775_REG_IN; + data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN; + data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX; + data->REG_TARGET = NCT6775_REG_TARGET; + data->REG_FAN = NCT6775_REG_FAN; + data->REG_FAN_MODE = NCT6775_REG_FAN_MODE; + data->REG_FAN_MIN = NCT6775_REG_FAN_MIN; + data->REG_FAN_PULSES = NCT6775_REG_FAN_PULSES; + data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME; + data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME; + data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME; + data->REG_PWM[0] = NCT6775_REG_PWM; + data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT; + data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT; + data->REG_PWM[3] = NCT6775_REG_FAN_MAX_OUTPUT; + data->REG_PWM[4] = NCT6775_REG_FAN_STEP_OUTPUT; + data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP; + data->REG_PWM_READ = NCT6775_REG_PWM_READ; + data->REG_PWM_MODE = NCT6775_REG_PWM_MODE; + data->PWM_MODE_MASK = NCT6775_PWM_MODE_MASK; + data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP; + data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM; + data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP; + data->REG_CRITICAL_TEMP_TOLERANCE + = NCT6775_REG_CRITICAL_TEMP_TOLERANCE; + data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET; + data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE; + data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL; + data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL; + data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP; + data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL; + data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE; + data->REG_ALARM = NCT6775_REG_ALARM; + + reg_temp = NCT6775_REG_TEMP; + num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP); + reg_temp_over = NCT6775_REG_TEMP_OVER; + reg_temp_hyst = NCT6775_REG_TEMP_HYST; + reg_temp_config = NCT6775_REG_TEMP_CONFIG; + reg_temp_alternate = NCT6775_REG_TEMP_ALTERNATE; + reg_temp_crit = NCT6775_REG_TEMP_CRIT; + + break; + case nct6776: + data->in_num = 9; + data->pwm_num = 3; + data->auto_pwm_num = 4; + data->has_fan_div = false; + data->temp_fixed_num = 3; + + data->ALARM_BITS = NCT6776_ALARM_BITS; + + data->fan_from_reg = fan_from_reg13; + data->fan_from_reg_min = fan_from_reg13; + data->target_temp_mask = 0xff; + data->tolerance_mask = 0x07; + data->speed_tolerance_limit = 63; + + data->temp_label = nct6776_temp_label; + data->temp_label_num = ARRAY_SIZE(nct6776_temp_label); + + data->REG_CONFIG = NCT6775_REG_CONFIG; + data->REG_VBAT = NCT6775_REG_VBAT; + data->REG_DIODE = NCT6775_REG_DIODE; + data->REG_VIN = NCT6775_REG_IN; + data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN; + data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX; + data->REG_TARGET = NCT6775_REG_TARGET; + data->REG_FAN = NCT6775_REG_FAN; + data->REG_FAN_MODE = NCT6775_REG_FAN_MODE; + data->REG_FAN_MIN = NCT6776_REG_FAN_MIN; + data->REG_FAN_PULSES = NCT6776_REG_FAN_PULSES; + data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME; + data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME; + data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME; + data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H; + data->REG_PWM[0] = NCT6775_REG_PWM; + data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT; + data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT; + data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP; + data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE; + data->REG_PWM_READ = NCT6775_REG_PWM_READ; + data->REG_PWM_MODE = NCT6776_REG_PWM_MODE; + data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK; + data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP; + data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM; + data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP; + data->REG_CRITICAL_TEMP_TOLERANCE + = NCT6775_REG_CRITICAL_TEMP_TOLERANCE; + data->REG_TEMP_OFFSET = NCT6775_REG_TEMP_OFFSET; + data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE; + data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL; + data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL; + data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP; + data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL; + data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE; + data->REG_ALARM = NCT6775_REG_ALARM; + + reg_temp = NCT6775_REG_TEMP; + num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP); + reg_temp_over = NCT6775_REG_TEMP_OVER; + reg_temp_hyst = NCT6775_REG_TEMP_HYST; + reg_temp_config = NCT6776_REG_TEMP_CONFIG; + reg_temp_alternate = NCT6776_REG_TEMP_ALTERNATE; + reg_temp_crit = NCT6776_REG_TEMP_CRIT; + + break; + case nct6779: + data->in_num = 15; + data->pwm_num = 5; + data->auto_pwm_num = 4; + data->has_fan_div = false; + data->temp_fixed_num = 6; + + data->ALARM_BITS = NCT6779_ALARM_BITS; + + data->fan_from_reg = fan_from_reg13; + data->fan_from_reg_min = fan_from_reg13; + data->target_temp_mask = 0xff; + data->tolerance_mask = 0x07; + data->speed_tolerance_limit = 63; + + data->temp_label = nct6779_temp_label; + data->temp_label_num = ARRAY_SIZE(nct6779_temp_label); + + data->REG_CONFIG = NCT6775_REG_CONFIG; + data->REG_VBAT = NCT6775_REG_VBAT; + data->REG_DIODE = NCT6775_REG_DIODE; + data->REG_VIN = NCT6779_REG_IN; + data->REG_IN_MINMAX[0] = NCT6775_REG_IN_MIN; + data->REG_IN_MINMAX[1] = NCT6775_REG_IN_MAX; + data->REG_TARGET = NCT6775_REG_TARGET; + data->REG_FAN = NCT6779_REG_FAN; + data->REG_FAN_MODE = NCT6775_REG_FAN_MODE; + data->REG_FAN_MIN = NCT6776_REG_FAN_MIN; + data->REG_FAN_PULSES = NCT6779_REG_FAN_PULSES; + data->REG_FAN_TIME[0] = NCT6775_REG_FAN_STOP_TIME; + data->REG_FAN_TIME[1] = NCT6775_REG_FAN_STEP_UP_TIME; + data->REG_FAN_TIME[2] = NCT6775_REG_FAN_STEP_DOWN_TIME; + data->REG_TOLERANCE_H = NCT6776_REG_TOLERANCE_H; + data->REG_PWM[0] = NCT6775_REG_PWM; + data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT; + data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT; + data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP; + data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE; + data->REG_PWM_READ = NCT6775_REG_PWM_READ; + data->REG_PWM_MODE = NCT6776_REG_PWM_MODE; + data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK; + data->REG_AUTO_TEMP = NCT6775_REG_AUTO_TEMP; + data->REG_AUTO_PWM = NCT6775_REG_AUTO_PWM; + data->REG_CRITICAL_TEMP = NCT6775_REG_CRITICAL_TEMP; + data->REG_CRITICAL_TEMP_TOLERANCE + = NCT6775_REG_CRITICAL_TEMP_TOLERANCE; + data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET; + data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE; + data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL; + data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL; + data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP; + data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL; + data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE; + data->REG_ALARM = NCT6779_REG_ALARM; + + reg_temp = NCT6779_REG_TEMP; + num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP); + reg_temp_over = NCT6779_REG_TEMP_OVER; + reg_temp_hyst = NCT6779_REG_TEMP_HYST; + reg_temp_config = NCT6779_REG_TEMP_CONFIG; + reg_temp_alternate = NCT6779_REG_TEMP_ALTERNATE; + reg_temp_crit = NCT6779_REG_TEMP_CRIT; + + break; + default: + return -ENODEV; + } + data->have_in = (1 << data->in_num) - 1; + data->have_temp = 0; + + /* + * On some boards, not all available temperature sources are monitored, + * even though some of the monitoring registers are unused. + * Get list of unused monitoring registers, then detect if any fan + * controls are configured to use unmonitored temperature sources. + * If so, assign the unmonitored temperature sources to available + * monitoring registers. + */ + mask = 0; + available = 0; + for (i = 0; i < num_reg_temp; i++) { + if (reg_temp[i] == 0) + continue; + + src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f; + if (!src || (mask & (1 << src))) + available |= 1 << i; + + mask |= 1 << src; + } + + /* + * Now find unmonitored temperature registers and enable monitoring + * if additional monitoring registers are available. + */ + add_temp_sensors(data, data->REG_TEMP_SEL, &available, &mask); + add_temp_sensors(data, data->REG_WEIGHT_TEMP_SEL, &available, &mask); + + mask = 0; + s = NUM_TEMP_FIXED; /* First dynamic temperature attribute */ + for (i = 0; i < num_reg_temp; i++) { + if (reg_temp[i] == 0) + continue; + + src = nct6775_read_value(data, data->REG_TEMP_SOURCE[i]) & 0x1f; + if (!src || (mask & (1 << src))) + continue; + + if (src >= data->temp_label_num || + !strlen(data->temp_label[src])) { + dev_info(dev, + "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n", + src, i, data->REG_TEMP_SOURCE[i], reg_temp[i]); + continue; + } + + mask |= 1 << src; + + /* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */ + if (src <= data->temp_fixed_num) { + data->have_temp |= 1 << (src - 1); + data->have_temp_fixed |= 1 << (src - 1); + data->reg_temp[0][src - 1] = reg_temp[i]; + data->reg_temp[1][src - 1] = reg_temp_over[i]; + data->reg_temp[2][src - 1] = reg_temp_hyst[i]; + data->reg_temp_config[src - 1] = reg_temp_config[i]; + data->temp_src[src - 1] = src; + continue; + } + + if (s >= NUM_TEMP) + continue; + + /* Use dynamic index for other sources */ + data->have_temp |= 1 << s; + data->reg_temp[0][s] = reg_temp[i]; + data->reg_temp[1][s] = reg_temp_over[i]; + data->reg_temp[2][s] = reg_temp_hyst[i]; + data->reg_temp_config[s] = reg_temp_config[i]; + if (reg_temp_crit[src - 1]) + data->reg_temp[3][s] = reg_temp_crit[src - 1]; + + data->temp_src[s] = src; + s++; + } + +#ifdef USE_ALTERNATE + /* + * Go through the list of alternate temp registers and enable + * if possible. + * The temperature is already monitored if the respective bit in <mask> + * is set. + */ + for (i = 0; i < data->temp_label_num - 1; i++) { + if (!reg_temp_alternate[i]) + continue; + if (mask & (1 << (i + 1))) + continue; + if (i < data->temp_fixed_num) { + if (data->have_temp & (1 << i)) + continue; + data->have_temp |= 1 << i; + data->have_temp_fixed |= 1 << i; + data->reg_temp[0][i] = reg_temp_alternate[i]; + data->reg_temp[1][i] = reg_temp_over[i]; + data->reg_temp[2][i] = reg_temp_hyst[i]; + data->temp_src[i] = i + 1; + continue; + } + + if (s >= NUM_TEMP) /* Abort if no more space */ + break; + + data->have_temp |= 1 << s; + data->reg_temp[0][s] = reg_temp_alternate[i]; + data->temp_src[s] = i + 1; + s++; + } +#endif /* USE_ALTERNATE */ + + /* Initialize the chip */ + nct6775_init_device(data); + + err = superio_enter(sio_data->sioreg); + if (err) + return err; + + cr2a = superio_inb(sio_data->sioreg, 0x2a); + switch (data->kind) { + case nct6775: + have_vid = (cr2a & 0x40); + break; + case nct6776: + have_vid = (cr2a & 0x60) == 0x40; + break; + case nct6779: + break; + } + + /* + * Read VID value + * We can get the VID input values directly at logical device D 0xe3. + */ + if (have_vid) { + superio_select(sio_data->sioreg, NCT6775_LD_VID); + data->vid = superio_inb(sio_data->sioreg, 0xe3); + data->vrm = vid_which_vrm(); + } + + if (fan_debounce) { + u8 tmp; + + superio_select(sio_data->sioreg, NCT6775_LD_HWM); + tmp = superio_inb(sio_data->sioreg, + NCT6775_REG_CR_FAN_DEBOUNCE); + switch (data->kind) { + case nct6775: + tmp |= 0x1e; + break; + case nct6776: + case nct6779: + tmp |= 0x3e; + break; + } + superio_outb(sio_data->sioreg, NCT6775_REG_CR_FAN_DEBOUNCE, + tmp); + dev_info(&pdev->dev, "Enabled fan debounce for chip %s\n", + data->name); + } + + superio_exit(sio_data->sioreg); + + if (have_vid) { + err = device_create_file(dev, &dev_attr_cpu0_vid); + if (err) + return err; + } + + err = nct6775_check_fan_inputs(sio_data, data); + if (err) + goto exit_remove; + + /* Read fan clock dividers immediately */ + nct6775_init_fan_common(dev, data); + + /* Register sysfs hooks */ + for (i = 0; i < data->pwm_num; i++) { + if (!(data->has_pwm & (1 << i))) + continue; + + err = sysfs_create_group(&dev->kobj, &nct6775_group_pwm[i]); + if (err) + goto exit_remove; + + if (data->REG_PWM[3]) { + err = device_create_file(dev, + &sda_pwm_max[i].dev_attr); + if (err) + goto exit_remove; + } + if (data->REG_PWM[4]) { + err = device_create_file(dev, + &sda_pwm_step[i].dev_attr); + if (err) + goto exit_remove; + } + if (data->REG_PWM[6]) { + err = device_create_file(dev, + &sda_weight_duty_base[i].dev_attr); + if (err) + goto exit_remove; + } + } + for (i = 0; i < ARRAY_SIZE(sda_auto_pwm_arrays); i++) { + struct sensor_device_attribute_2 *attr = + &sda_auto_pwm_arrays[i]; + + if (!(data->has_pwm & (1 << attr->nr))) + continue; + if (attr->index > data->auto_pwm_num) + continue; + err = device_create_file(dev, &attr->dev_attr); + if (err) + goto exit_remove; + } + + for (i = 0; i < data->in_num; i++) { + if (!(data->have_in & (1 << i))) + continue; + err = sysfs_create_group(&dev->kobj, &nct6775_group_in[i]); + if (err) + goto exit_remove; + } + + for (i = 0; i < 5; i++) { + if (data->has_fan & (1 << i)) { + err = device_create_file(dev, + &sda_fan_input[i].dev_attr); + if (err) + goto exit_remove; + err = device_create_file(dev, + &sda_fan_alarm[i].dev_attr); + if (err) + goto exit_remove; + if (data->kind != nct6776 && + data->kind != nct6779) { + err = device_create_file(dev, + &sda_fan_div[i].dev_attr); + if (err) + goto exit_remove; + } + if (data->has_fan_min & (1 << i)) { + err = device_create_file(dev, + &sda_fan_min[i].dev_attr); + if (err) + goto exit_remove; + } + err = device_create_file(dev, + &sda_fan_pulses[i].dev_attr); + if (err) + goto exit_remove; + } + } + + for (i = 0; i < NUM_TEMP; i++) { + if (!(data->have_temp & (1 << i))) + continue; + err = device_create_file(dev, &sda_temp_input[i].dev_attr); + if (err) + goto exit_remove; + if (data->temp_label) { + err = device_create_file(dev, + &sda_temp_label[i].dev_attr); + if (err) + goto exit_remove; + } + if (data->reg_temp[1][i]) { + err = device_create_file(dev, + &sda_temp_max[i].dev_attr); + if (err) + goto exit_remove; + } + if (data->reg_temp[2][i]) { + err = device_create_file(dev, + &sda_temp_max_hyst[i].dev_attr); + if (err) + goto exit_remove; + } + if (data->reg_temp[3][i]) { + err = device_create_file(dev, + &sda_temp_crit[i].dev_attr); + if (err) + goto exit_remove; + } + if (!(data->have_temp_fixed & (1 << i))) + continue; + err = device_create_file(dev, &sda_temp_type[i].dev_attr); + if (err) + goto exit_remove; + err = device_create_file(dev, &sda_temp_offset[i].dev_attr); + if (err) + goto exit_remove; + if (i >= NUM_TEMP_ALARM || + data->ALARM_BITS[TEMP_ALARM_BASE + i] < 0) + continue; + err = device_create_file(dev, &sda_temp_alarm[i].dev_attr); + if (err) + goto exit_remove; + } + + for (i = 0; i < ARRAY_SIZE(sda_caseopen); i++) { + if (data->ALARM_BITS[INTRUSION_ALARM_BASE + i] < 0) + continue; + err = device_create_file(dev, &sda_caseopen[i].dev_attr); + if (err) + goto exit_remove; + } + + err = device_create_file(dev, &dev_attr_name); + if (err) + goto exit_remove; + + data->hwmon_dev = hwmon_device_register(dev); + if (IS_ERR(data->hwmon_dev)) { + err = PTR_ERR(data->hwmon_dev); + goto exit_remove; + } + + return 0; + +exit_remove: + nct6775_device_remove_files(dev); + return err; +} + +static int nct6775_remove(struct platform_device *pdev) +{ + struct nct6775_data *data = platform_get_drvdata(pdev); + + hwmon_device_unregister(data->hwmon_dev); + nct6775_device_remove_files(&pdev->dev); + + return 0; +} + +#ifdef CONFIG_PM +static int nct6775_suspend(struct device *dev) +{ + struct nct6775_data *data = nct6775_update_device(dev); + struct nct6775_sio_data *sio_data = dev->platform_data; + + mutex_lock(&data->update_lock); + data->vbat = nct6775_read_value(data, data->REG_VBAT); + if (sio_data->kind == nct6775) { + data->fandiv1 = nct6775_read_value(data, NCT6775_REG_FANDIV1); + data->fandiv2 = nct6775_read_value(data, NCT6775_REG_FANDIV2); + } + mutex_unlock(&data->update_lock); + + return 0; +} + +static int nct6775_resume(struct device *dev) +{ + struct nct6775_data *data = dev_get_drvdata(dev); + struct nct6775_sio_data *sio_data = dev->platform_data; + int i, j; + + mutex_lock(&data->update_lock); + data->bank = 0xff; /* Force initial bank selection */ + + /* Restore limits */ + for (i = 0; i < data->in_num; i++) { + if (!(data->have_in & (1 << i))) + continue; + + nct6775_write_value(data, data->REG_IN_MINMAX[0][i], + data->in[i][1]); + nct6775_write_value(data, data->REG_IN_MINMAX[1][i], + data->in[i][2]); + } + + for (i = 0; i < ARRAY_SIZE(data->fan_min); i++) { + if (!(data->has_fan_min & (1 << i))) + continue; + + nct6775_write_value(data, data->REG_FAN_MIN[i], + data->fan_min[i]); + } + + for (i = 0; i < NUM_TEMP; i++) { + if (!(data->have_temp & (1 << i))) + continue; + + for (j = 1; j < ARRAY_SIZE(data->reg_temp); j++) + if (data->reg_temp[j][i]) + nct6775_write_temp(data, data->reg_temp[j][i], + data->temp[j][i]); + } + + /* Restore other settings */ + nct6775_write_value(data, data->REG_VBAT, data->vbat); + if (sio_data->kind == nct6775) { + nct6775_write_value(data, NCT6775_REG_FANDIV1, data->fandiv1); + nct6775_write_value(data, NCT6775_REG_FANDIV2, data->fandiv2); + } + + /* Force re-reading all values */ + data->valid = false; + mutex_unlock(&data->update_lock); + + return 0; +} + +static const struct dev_pm_ops nct6775_dev_pm_ops = { + .suspend = nct6775_suspend, + .resume = nct6775_resume, +}; + +#define NCT6775_DEV_PM_OPS (&nct6775_dev_pm_ops) +#else +#define NCT6775_DEV_PM_OPS NULL +#endif /* CONFIG_PM */ + +static struct platform_driver nct6775_driver = { + .driver = { + .owner = THIS_MODULE, + .name = DRVNAME, + .pm = NCT6775_DEV_PM_OPS, + }, + .probe = nct6775_probe, + .remove = nct6775_remove, +}; + +static const char * const nct6775_sio_names[] __initconst = { + "NCT6775F", + "NCT6776D/F", + "NCT6779D", +}; + +/* nct6775_find() looks for a '627 in the Super-I/O config space */ +static int __init nct6775_find(int sioaddr, unsigned short *addr, + struct nct6775_sio_data *sio_data) +{ + u16 val; + int err; + + err = superio_enter(sioaddr); + if (err) + return err; + + if (force_id) + val = force_id; + else + val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8) + | superio_inb(sioaddr, SIO_REG_DEVID + 1); + switch (val & SIO_ID_MASK) { + case SIO_NCT6775_ID: + sio_data->kind = nct6775; + break; + case SIO_NCT6776_ID: + sio_data->kind = nct6776; + break; + case SIO_NCT6779_ID: + sio_data->kind = nct6779; + break; + default: + if (val != 0xffff) + pr_debug("unsupported chip ID: 0x%04x\n", val); + superio_exit(sioaddr); + return -ENODEV; + } + + /* We have a known chip, find the HWM I/O address */ + superio_select(sioaddr, NCT6775_LD_HWM); + val = (superio_inb(sioaddr, SIO_REG_ADDR) << 8) + | superio_inb(sioaddr, SIO_REG_ADDR + 1); + *addr = val & IOREGION_ALIGNMENT; + if (*addr == 0) { + pr_err("Refusing to enable a Super-I/O device with a base I/O port 0\n"); + superio_exit(sioaddr); + return -ENODEV; + } + + /* Activate logical device if needed */ + val = superio_inb(sioaddr, SIO_REG_ENABLE); + if (!(val & 0x01)) { + pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n"); + superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01); + } + + superio_exit(sioaddr); + pr_info("Found %s or compatible chip at %#x\n", + nct6775_sio_names[sio_data->kind], *addr); + sio_data->sioreg = sioaddr; + + return 0; +} + +/* + * when Super-I/O functions move to a separate file, the Super-I/O + * bus will manage the lifetime of the device and this module will only keep + * track of the nct6775 driver. But since we platform_device_alloc(), we + * must keep track of the device + */ +static struct platform_device *pdev; + +static int __init sensors_nct6775_init(void) +{ + int err; + unsigned short address; + struct resource res; + struct nct6775_sio_data sio_data; + + /* + * initialize sio_data->kind and sio_data->sioreg. + * + * when Super-I/O functions move to a separate file, the Super-I/O + * driver will probe 0x2e and 0x4e and auto-detect the presence of a + * nct6775 hardware monitor, and call probe() + */ + if (nct6775_find(0x2e, &address, &sio_data) && + nct6775_find(0x4e, &address, &sio_data)) + return -ENODEV; + + err = platform_driver_register(&nct6775_driver); + if (err) + goto exit; + + pdev = platform_device_alloc(DRVNAME, address); + if (!pdev) { + err = -ENOMEM; + pr_err("Device allocation failed\n"); + goto exit_unregister; + } + + err = platform_device_add_data(pdev, &sio_data, + sizeof(struct nct6775_sio_data)); + if (err) { + pr_err("Platform data allocation failed\n"); + goto exit_device_put; + } + + memset(&res, 0, sizeof(res)); + res.name = DRVNAME; + res.start = address + IOREGION_OFFSET; + res.end = address + IOREGION_OFFSET + IOREGION_LENGTH - 1; + res.flags = IORESOURCE_IO; + + err = acpi_check_resource_conflict(&res); + if (err) + goto exit_device_put; + + err = platform_device_add_resources(pdev, &res, 1); + if (err) { + pr_err("Device resource addition failed (%d)\n", err); + goto exit_device_put; + } + + /* platform_device_add calls probe() */ + err = platform_device_add(pdev); + if (err) { + pr_err("Device addition failed (%d)\n", err); + goto exit_device_put; + } + + return 0; + +exit_device_put: + platform_device_put(pdev); +exit_unregister: + platform_driver_unregister(&nct6775_driver); +exit: + return err; +} + +static void __exit sensors_nct6775_exit(void) +{ + platform_device_unregister(pdev); + platform_driver_unregister(&nct6775_driver); +} + +MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>"); +MODULE_DESCRIPTION("NCT6775F/NCT6776F/NCT6779D driver"); +MODULE_LICENSE("GPL"); + +module_init(sensors_nct6775_init); +module_exit(sensors_nct6775_exit); diff --git a/drivers/hwmon/ntc_thermistor.c b/drivers/hwmon/ntc_thermistor.c index b5f63f9c0ce..d6d640a733d 100644 --- a/drivers/hwmon/ntc_thermistor.c +++ b/drivers/hwmon/ntc_thermistor.c @@ -26,17 +26,33 @@ #include <linux/math64.h> #include <linux/platform_device.h> #include <linux/err.h> +#include <linux/of.h> +#include <linux/of_device.h> #include <linux/platform_data/ntc_thermistor.h> +#include <linux/iio/iio.h> +#include <linux/iio/machine.h> +#include <linux/iio/driver.h> +#include <linux/iio/consumer.h> + #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> struct ntc_compensation { - int temp_C; + int temp_c; unsigned int ohm; }; +static const struct platform_device_id ntc_thermistor_id[] = { + { "ncp15wb473", TYPE_NCPXXWB473 }, + { "ncp18wb473", TYPE_NCPXXWB473 }, + { "ncp21wb473", TYPE_NCPXXWB473 }, + { "ncp03wb473", TYPE_NCPXXWB473 }, + { "ncp15wl333", TYPE_NCPXXWL333 }, + { }, +}; + /* * A compensation table should be sorted by the values of .ohm * in descending order. @@ -44,76 +60,76 @@ struct ntc_compensation { * Thermistors Datasheet */ static const struct ntc_compensation ncpXXwb473[] = { - { .temp_C = -40, .ohm = 1747920 }, - { .temp_C = -35, .ohm = 1245428 }, - { .temp_C = -30, .ohm = 898485 }, - { .temp_C = -25, .ohm = 655802 }, - { .temp_C = -20, .ohm = 483954 }, - { .temp_C = -15, .ohm = 360850 }, - { .temp_C = -10, .ohm = 271697 }, - { .temp_C = -5, .ohm = 206463 }, - { .temp_C = 0, .ohm = 158214 }, - { .temp_C = 5, .ohm = 122259 }, - { .temp_C = 10, .ohm = 95227 }, - { .temp_C = 15, .ohm = 74730 }, - { .temp_C = 20, .ohm = 59065 }, - { .temp_C = 25, .ohm = 47000 }, - { .temp_C = 30, .ohm = 37643 }, - { .temp_C = 35, .ohm = 30334 }, - { .temp_C = 40, .ohm = 24591 }, - { .temp_C = 45, .ohm = 20048 }, - { .temp_C = 50, .ohm = 16433 }, - { .temp_C = 55, .ohm = 13539 }, - { .temp_C = 60, .ohm = 11209 }, - { .temp_C = 65, .ohm = 9328 }, - { .temp_C = 70, .ohm = 7798 }, - { .temp_C = 75, .ohm = 6544 }, - { .temp_C = 80, .ohm = 5518 }, - { .temp_C = 85, .ohm = 4674 }, - { .temp_C = 90, .ohm = 3972 }, - { .temp_C = 95, .ohm = 3388 }, - { .temp_C = 100, .ohm = 2902 }, - { .temp_C = 105, .ohm = 2494 }, - { .temp_C = 110, .ohm = 2150 }, - { .temp_C = 115, .ohm = 1860 }, - { .temp_C = 120, .ohm = 1615 }, - { .temp_C = 125, .ohm = 1406 }, + { .temp_c = -40, .ohm = 1747920 }, + { .temp_c = -35, .ohm = 1245428 }, + { .temp_c = -30, .ohm = 898485 }, + { .temp_c = -25, .ohm = 655802 }, + { .temp_c = -20, .ohm = 483954 }, + { .temp_c = -15, .ohm = 360850 }, + { .temp_c = -10, .ohm = 271697 }, + { .temp_c = -5, .ohm = 206463 }, + { .temp_c = 0, .ohm = 158214 }, + { .temp_c = 5, .ohm = 122259 }, + { .temp_c = 10, .ohm = 95227 }, + { .temp_c = 15, .ohm = 74730 }, + { .temp_c = 20, .ohm = 59065 }, + { .temp_c = 25, .ohm = 47000 }, + { .temp_c = 30, .ohm = 37643 }, + { .temp_c = 35, .ohm = 30334 }, + { .temp_c = 40, .ohm = 24591 }, + { .temp_c = 45, .ohm = 20048 }, + { .temp_c = 50, .ohm = 16433 }, + { .temp_c = 55, .ohm = 13539 }, + { .temp_c = 60, .ohm = 11209 }, + { .temp_c = 65, .ohm = 9328 }, + { .temp_c = 70, .ohm = 7798 }, + { .temp_c = 75, .ohm = 6544 }, + { .temp_c = 80, .ohm = 5518 }, + { .temp_c = 85, .ohm = 4674 }, + { .temp_c = 90, .ohm = 3972 }, + { .temp_c = 95, .ohm = 3388 }, + { .temp_c = 100, .ohm = 2902 }, + { .temp_c = 105, .ohm = 2494 }, + { .temp_c = 110, .ohm = 2150 }, + { .temp_c = 115, .ohm = 1860 }, + { .temp_c = 120, .ohm = 1615 }, + { .temp_c = 125, .ohm = 1406 }, }; static const struct ntc_compensation ncpXXwl333[] = { - { .temp_C = -40, .ohm = 1610154 }, - { .temp_C = -35, .ohm = 1130850 }, - { .temp_C = -30, .ohm = 802609 }, - { .temp_C = -25, .ohm = 575385 }, - { .temp_C = -20, .ohm = 416464 }, - { .temp_C = -15, .ohm = 304219 }, - { .temp_C = -10, .ohm = 224193 }, - { .temp_C = -5, .ohm = 166623 }, - { .temp_C = 0, .ohm = 124850 }, - { .temp_C = 5, .ohm = 94287 }, - { .temp_C = 10, .ohm = 71747 }, - { .temp_C = 15, .ohm = 54996 }, - { .temp_C = 20, .ohm = 42455 }, - { .temp_C = 25, .ohm = 33000 }, - { .temp_C = 30, .ohm = 25822 }, - { .temp_C = 35, .ohm = 20335 }, - { .temp_C = 40, .ohm = 16115 }, - { .temp_C = 45, .ohm = 12849 }, - { .temp_C = 50, .ohm = 10306 }, - { .temp_C = 55, .ohm = 8314 }, - { .temp_C = 60, .ohm = 6746 }, - { .temp_C = 65, .ohm = 5503 }, - { .temp_C = 70, .ohm = 4513 }, - { .temp_C = 75, .ohm = 3721 }, - { .temp_C = 80, .ohm = 3084 }, - { .temp_C = 85, .ohm = 2569 }, - { .temp_C = 90, .ohm = 2151 }, - { .temp_C = 95, .ohm = 1809 }, - { .temp_C = 100, .ohm = 1529 }, - { .temp_C = 105, .ohm = 1299 }, - { .temp_C = 110, .ohm = 1108 }, - { .temp_C = 115, .ohm = 949 }, - { .temp_C = 120, .ohm = 817 }, - { .temp_C = 125, .ohm = 707 }, + { .temp_c = -40, .ohm = 1610154 }, + { .temp_c = -35, .ohm = 1130850 }, + { .temp_c = -30, .ohm = 802609 }, + { .temp_c = -25, .ohm = 575385 }, + { .temp_c = -20, .ohm = 416464 }, + { .temp_c = -15, .ohm = 304219 }, + { .temp_c = -10, .ohm = 224193 }, + { .temp_c = -5, .ohm = 166623 }, + { .temp_c = 0, .ohm = 124850 }, + { .temp_c = 5, .ohm = 94287 }, + { .temp_c = 10, .ohm = 71747 }, + { .temp_c = 15, .ohm = 54996 }, + { .temp_c = 20, .ohm = 42455 }, + { .temp_c = 25, .ohm = 33000 }, + { .temp_c = 30, .ohm = 25822 }, + { .temp_c = 35, .ohm = 20335 }, + { .temp_c = 40, .ohm = 16115 }, + { .temp_c = 45, .ohm = 12849 }, + { .temp_c = 50, .ohm = 10306 }, + { .temp_c = 55, .ohm = 8314 }, + { .temp_c = 60, .ohm = 6746 }, + { .temp_c = 65, .ohm = 5503 }, + { .temp_c = 70, .ohm = 4513 }, + { .temp_c = 75, .ohm = 3721 }, + { .temp_c = 80, .ohm = 3084 }, + { .temp_c = 85, .ohm = 2569 }, + { .temp_c = 90, .ohm = 2151 }, + { .temp_c = 95, .ohm = 1809 }, + { .temp_c = 100, .ohm = 1529 }, + { .temp_c = 105, .ohm = 1299 }, + { .temp_c = 110, .ohm = 1108 }, + { .temp_c = 115, .ohm = 949 }, + { .temp_c = 120, .ohm = 817 }, + { .temp_c = 125, .ohm = 707 }, }; struct ntc_data { @@ -125,6 +141,92 @@ struct ntc_data { char name[PLATFORM_NAME_SIZE]; }; +#ifdef CONFIG_OF +static int ntc_adc_iio_read(struct ntc_thermistor_platform_data *pdata) +{ + struct iio_channel *channel = pdata->chan; + unsigned int result; + int val, ret; + + ret = iio_read_channel_raw(channel, &val); + if (ret < 0) { + pr_err("read channel() error: %d\n", ret); + return ret; + } + + /* unit: mV */ + result = pdata->pullup_uv * val; + result >>= 12; + + return result; +} + +static const struct of_device_id ntc_match[] = { + { .compatible = "ntc,ncp15wb473", + .data = &ntc_thermistor_id[TYPE_NCPXXWB473] }, + { .compatible = "ntc,ncp18wb473", + .data = &ntc_thermistor_id[TYPE_NCPXXWB473] }, + { .compatible = "ntc,ncp21wb473", + .data = &ntc_thermistor_id[TYPE_NCPXXWB473] }, + { .compatible = "ntc,ncp03wb473", + .data = &ntc_thermistor_id[TYPE_NCPXXWB473] }, + { .compatible = "ntc,ncp15wl333", + .data = &ntc_thermistor_id[TYPE_NCPXXWL333] }, + { }, +}; +MODULE_DEVICE_TABLE(of, ntc_match); + +static struct ntc_thermistor_platform_data * +ntc_thermistor_parse_dt(struct platform_device *pdev) +{ + struct iio_channel *chan; + struct device_node *np = pdev->dev.of_node; + struct ntc_thermistor_platform_data *pdata; + + if (!np) + return NULL; + + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return ERR_PTR(-ENOMEM); + + chan = iio_channel_get(&pdev->dev, NULL); + if (IS_ERR(chan)) + return ERR_CAST(chan); + + if (of_property_read_u32(np, "pullup-uv", &pdata->pullup_uv)) + return ERR_PTR(-ENODEV); + if (of_property_read_u32(np, "pullup-ohm", &pdata->pullup_ohm)) + return ERR_PTR(-ENODEV); + if (of_property_read_u32(np, "pulldown-ohm", &pdata->pulldown_ohm)) + return ERR_PTR(-ENODEV); + + if (of_find_property(np, "connected-positive", NULL)) + pdata->connect = NTC_CONNECTED_POSITIVE; + else /* status change should be possible if not always on. */ + pdata->connect = NTC_CONNECTED_GROUND; + + pdata->chan = chan; + pdata->read_uv = ntc_adc_iio_read; + + return pdata; +} +static void ntc_iio_channel_release(struct ntc_thermistor_platform_data *pdata) +{ + if (pdata->chan) + iio_channel_release(pdata->chan); +} +#else +static struct ntc_thermistor_platform_data * +ntc_thermistor_parse_dt(struct platform_device *pdev) +{ + return NULL; +} + +static void ntc_iio_channel_release(struct ntc_thermistor_platform_data *pdata) +{ } +#endif + static inline u64 div64_u64_safe(u64 dividend, u64 divisor) { if (divisor == 0 && dividend == 0) @@ -134,37 +236,37 @@ static inline u64 div64_u64_safe(u64 dividend, u64 divisor) return div64_u64(dividend, divisor); } -static int get_ohm_of_thermistor(struct ntc_data *data, unsigned int uV) +static int get_ohm_of_thermistor(struct ntc_data *data, unsigned int uv) { struct ntc_thermistor_platform_data *pdata = data->pdata; - u64 mV = uV / 1000; - u64 pmV = pdata->pullup_uV / 1000; - u64 N, puO, pdO; - puO = pdata->pullup_ohm; - pdO = pdata->pulldown_ohm; + u64 mv = uv / 1000; + u64 pmv = pdata->pullup_uv / 1000; + u64 n, puo, pdo; + puo = pdata->pullup_ohm; + pdo = pdata->pulldown_ohm; - if (mV == 0) { + if (mv == 0) { if (pdata->connect == NTC_CONNECTED_POSITIVE) return INT_MAX; return 0; } - if (mV >= pmV) + if (mv >= pmv) return (pdata->connect == NTC_CONNECTED_POSITIVE) ? 0 : INT_MAX; - if (pdata->connect == NTC_CONNECTED_POSITIVE && puO == 0) - N = div64_u64_safe(pdO * (pmV - mV), mV); - else if (pdata->connect == NTC_CONNECTED_GROUND && pdO == 0) - N = div64_u64_safe(puO * mV, pmV - mV); + if (pdata->connect == NTC_CONNECTED_POSITIVE && puo == 0) + n = div64_u64_safe(pdo * (pmv - mv), mv); + else if (pdata->connect == NTC_CONNECTED_GROUND && pdo == 0) + n = div64_u64_safe(puo * mv, pmv - mv); else if (pdata->connect == NTC_CONNECTED_POSITIVE) - N = div64_u64_safe(pdO * puO * (pmV - mV), - puO * mV - pdO * (pmV - mV)); + n = div64_u64_safe(pdo * puo * (pmv - mv), + puo * mv - pdo * (pmv - mv)); else - N = div64_u64_safe(pdO * puO * mV, pdO * (pmV - mV) - puO * mV); + n = div64_u64_safe(pdo * puo * mv, pdo * (pmv - mv) - puo * mv); - if (N > INT_MAX) - N = INT_MAX; - return N; + if (n > INT_MAX) + n = INT_MAX; + return n; } static void lookup_comp(struct ntc_data *data, unsigned int ohm, @@ -233,7 +335,7 @@ static void lookup_comp(struct ntc_data *data, unsigned int ohm, *i_high = end - 1; } -static int get_temp_mC(struct ntc_data *data, unsigned int ohm) +static int get_temp_mc(struct ntc_data *data, unsigned int ohm) { int low, high; int temp; @@ -241,10 +343,10 @@ static int get_temp_mC(struct ntc_data *data, unsigned int ohm) lookup_comp(data, ohm, &low, &high); if (low == high) { /* Unable to use linear approximation */ - temp = data->comp[low].temp_C * 1000; + temp = data->comp[low].temp_c * 1000; } else { - temp = data->comp[low].temp_C * 1000 + - ((data->comp[high].temp_C - data->comp[low].temp_C) * + temp = data->comp[low].temp_c * 1000 + + ((data->comp[high].temp_c - data->comp[low].temp_c) * 1000 * ((int)ohm - (int)data->comp[low].ohm)) / ((int)data->comp[high].ohm - (int)data->comp[low].ohm); } @@ -253,16 +355,16 @@ static int get_temp_mC(struct ntc_data *data, unsigned int ohm) static int ntc_thermistor_get_ohm(struct ntc_data *data) { - int read_uV; + int read_uv; if (data->pdata->read_ohm) return data->pdata->read_ohm(); - if (data->pdata->read_uV) { - read_uV = data->pdata->read_uV(); - if (read_uV < 0) - return read_uV; - return get_ohm_of_thermistor(data, read_uV); + if (data->pdata->read_uv) { + read_uv = data->pdata->read_uv(data->pdata); + if (read_uv < 0) + return read_uv; + return get_ohm_of_thermistor(data, read_uv); } return -EINVAL; } @@ -291,7 +393,7 @@ static ssize_t ntc_show_temp(struct device *dev, if (ohm < 0) return ohm; - return sprintf(buf, "%d\n", get_temp_mC(data, ohm)); + return sprintf(buf, "%d\n", get_temp_mc(data, ohm)); } static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO, ntc_show_type, NULL, 0); @@ -311,9 +413,18 @@ static const struct attribute_group ntc_attr_group = { static int ntc_thermistor_probe(struct platform_device *pdev) { + const struct of_device_id *of_id = + of_match_device(of_match_ptr(ntc_match), &pdev->dev); + const struct platform_device_id *pdev_id; + struct ntc_thermistor_platform_data *pdata; struct ntc_data *data; - struct ntc_thermistor_platform_data *pdata = pdev->dev.platform_data; - int ret = 0; + int ret; + + pdata = ntc_thermistor_parse_dt(pdev); + if (IS_ERR(pdata)) + return PTR_ERR(pdata); + else if (pdata == NULL) + pdata = pdev->dev.platform_data; if (!pdata) { dev_err(&pdev->dev, "No platform init data supplied.\n"); @@ -321,19 +432,19 @@ static int ntc_thermistor_probe(struct platform_device *pdev) } /* Either one of the two is required. */ - if (!pdata->read_uV && !pdata->read_ohm) { + if (!pdata->read_uv && !pdata->read_ohm) { dev_err(&pdev->dev, - "Both read_uV and read_ohm missing. Need either one of the two.\n"); + "Both read_uv and read_ohm missing. Need either one of the two.\n"); return -EINVAL; } - if (pdata->read_uV && pdata->read_ohm) { + if (pdata->read_uv && pdata->read_ohm) { dev_warn(&pdev->dev, - "Only one of read_uV and read_ohm is needed; ignoring read_uV.\n"); - pdata->read_uV = NULL; + "Only one of read_uv and read_ohm is needed; ignoring read_uv.\n"); + pdata->read_uv = NULL; } - if (pdata->read_uV && (pdata->pullup_uV == 0 || + if (pdata->read_uv && (pdata->pullup_uv == 0 || (pdata->pullup_ohm == 0 && pdata->connect == NTC_CONNECTED_GROUND) || (pdata->pulldown_ohm == 0 && pdata->connect == @@ -341,7 +452,7 @@ static int ntc_thermistor_probe(struct platform_device *pdev) (pdata->connect != NTC_CONNECTED_POSITIVE && pdata->connect != NTC_CONNECTED_GROUND))) { dev_err(&pdev->dev, - "Required data to use read_uV not supplied.\n"); + "Required data to use read_uv not supplied.\n"); return -EINVAL; } @@ -349,11 +460,13 @@ static int ntc_thermistor_probe(struct platform_device *pdev) if (!data) return -ENOMEM; + pdev_id = of_id ? of_id->data : platform_get_device_id(pdev); + data->dev = &pdev->dev; data->pdata = pdata; - strlcpy(data->name, pdev->id_entry->name, sizeof(data->name)); + strlcpy(data->name, pdev_id->name, sizeof(data->name)); - switch (pdev->id_entry->driver_data) { + switch (pdev_id->driver_data) { case TYPE_NCPXXWB473: data->comp = ncpXXwb473; data->n_comp = ARRAY_SIZE(ncpXXwb473); @@ -364,8 +477,7 @@ static int ntc_thermistor_probe(struct platform_device *pdev) break; default: dev_err(&pdev->dev, "Unknown device type: %lu(%s)\n", - pdev->id_entry->driver_data, - pdev->id_entry->name); + pdev_id->driver_data, pdev_id->name); return -EINVAL; } @@ -384,39 +496,34 @@ static int ntc_thermistor_probe(struct platform_device *pdev) goto err_after_sysfs; } - dev_info(&pdev->dev, "Thermistor %s:%d (type: %s/%lu) successfully probed.\n", - pdev->name, pdev->id, pdev->id_entry->name, - pdev->id_entry->driver_data); + dev_info(&pdev->dev, "Thermistor type: %s successfully probed.\n", + pdev->name); + return 0; err_after_sysfs: sysfs_remove_group(&data->dev->kobj, &ntc_attr_group); + ntc_iio_channel_release(pdata); return ret; } static int ntc_thermistor_remove(struct platform_device *pdev) { struct ntc_data *data = platform_get_drvdata(pdev); + struct ntc_thermistor_platform_data *pdata = data->pdata; hwmon_device_unregister(data->hwmon_dev); sysfs_remove_group(&data->dev->kobj, &ntc_attr_group); + ntc_iio_channel_release(pdata); platform_set_drvdata(pdev, NULL); return 0; } -static const struct platform_device_id ntc_thermistor_id[] = { - { "ncp15wb473", TYPE_NCPXXWB473 }, - { "ncp18wb473", TYPE_NCPXXWB473 }, - { "ncp21wb473", TYPE_NCPXXWB473 }, - { "ncp03wb473", TYPE_NCPXXWB473 }, - { "ncp15wl333", TYPE_NCPXXWL333 }, - { }, -}; - static struct platform_driver ntc_thermistor_driver = { .driver = { .name = "ntc-thermistor", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(ntc_match), }, .probe = ntc_thermistor_probe, .remove = ntc_thermistor_remove, diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c index e35856bb79b..aa615ba73d4 100644 --- a/drivers/hwmon/pc87360.c +++ b/drivers/hwmon/pc87360.c @@ -1190,8 +1190,7 @@ static int __init pc87360_find(int sioaddr, u8 *devid, confreg[3] = superio_inb(sioaddr, 0x25); if (confreg[2] & 0x40) { - pr_info("Using thermistors for " - "temperature monitoring\n"); + pr_info("Using thermistors for temperature monitoring\n"); } if (confreg[3] & 0xE0) { pr_info("VID inputs routed (mode %u)\n", @@ -1271,9 +1270,9 @@ static int pc87360_probe(struct platform_device *pdev) if (data->address[i] && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT, pc87360_driver.driver.name)) { - dev_err(dev, "Region 0x%x-0x%x already " - "in use!\n", extra_isa[i], - extra_isa[i]+PC87360_EXTENT-1); + dev_err(dev, + "Region 0x%x-0x%x already in use!\n", + extra_isa[i], extra_isa[i]+PC87360_EXTENT-1); return -EBUSY; } } @@ -1435,8 +1434,8 @@ static void pc87360_init_device(struct platform_device *pdev, if (init >= 2 && data->innr) { reg = pc87360_read_value(data, LD_IN, NO_BANK, PC87365_REG_IN_CONVRATE); - dev_info(&pdev->dev, "VLM conversion set to " - "1s period, 160us delay\n"); + dev_info(&pdev->dev, + "VLM conversion set to 1s period, 160us delay\n"); pc87360_write_value(data, LD_IN, NO_BANK, PC87365_REG_IN_CONVRATE, (reg & 0xC0) | 0x11); @@ -1450,8 +1449,8 @@ static void pc87360_init_device(struct platform_device *pdev, if (init >= init_in[i]) { /* Forcibly enable voltage channel */ if (!(reg & CHAN_ENA)) { - dev_dbg(&pdev->dev, "Forcibly " - "enabling in%d\n", i); + dev_dbg(&pdev->dev, "Forcibly enabling in%d\n", + i); pc87360_write_value(data, LD_IN, i, PC87365_REG_IN_STATUS, (reg & 0x68) | 0x87); @@ -1575,8 +1574,8 @@ static void pc87360_autodiv(struct device *dev, int nr) data->fan_status[nr] += 0x20; data->fan_min[nr] >>= 1; data->fan[nr] >>= 1; - dev_dbg(dev, "Increasing " - "clock divider to %d for fan %d\n", + dev_dbg(dev, + "Increasing clock divider to %d for fan %d\n", FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1); } } else { @@ -1587,8 +1586,8 @@ static void pc87360_autodiv(struct device *dev, int nr) data->fan_status[nr] -= 0x20; data->fan_min[nr] <<= 1; data->fan[nr] <<= 1; - dev_dbg(dev, "Decreasing " - "clock divider to %d for fan %d\n", + dev_dbg(dev, + "Decreasing clock divider to %d for fan %d\n", FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1); } diff --git a/drivers/hwmon/pc87427.c b/drivers/hwmon/pc87427.c index 6086ad039d7..ea606860d2b 100644 --- a/drivers/hwmon/pc87427.c +++ b/drivers/hwmon/pc87427.c @@ -627,8 +627,9 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute pc87427_readall_pwm(data, nr); mode = data->pwm_enable[nr] & PWM_ENABLE_MODE_MASK; if (mode != PWM_MODE_MANUAL && mode != PWM_MODE_OFF) { - dev_notice(dev, "Can't set PWM%d duty cycle while not in " - "manual mode\n", nr + 1); + dev_notice(dev, + "Can't set PWM%d duty cycle while not in manual mode\n", + nr + 1); mutex_unlock(&data->lock); return -EPERM; } @@ -1245,16 +1246,16 @@ static int __init pc87427_find(int sioaddr, struct pc87427_sio_data *sio_data) val = superio_inb(sioaddr, SIOREG_MAP); if (val & 0x01) { - pr_warn("Logical device 0x%02x is memory-mapped, " - "can't use\n", logdev[i]); + pr_warn("Logical device 0x%02x is memory-mapped, can't use\n", + logdev[i]); continue; } val = (superio_inb(sioaddr, SIOREG_IOBASE) << 8) | superio_inb(sioaddr, SIOREG_IOBASE + 1); if (!val) { - pr_info("I/O base address not set for logical device " - "0x%02x\n", logdev[i]); + pr_info("I/O base address not set for logical device 0x%02x\n", + logdev[i]); continue; } sio_data->address[i] = val; diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig index 4f9eb0af522..39cc63edfbb 100644 --- a/drivers/hwmon/pmbus/Kconfig +++ b/drivers/hwmon/pmbus/Kconfig @@ -42,17 +42,17 @@ config SENSORS_LM25066 default n help If you say yes here you get hardware monitoring support for National - Semiconductor LM25066, LM5064, and LM5066. + Semiconductor LM25056, LM25066, LM5064, and LM5066. This driver can also be built as a module. If so, the module will be called lm25066. config SENSORS_LTC2978 - tristate "Linear Technologies LTC2978 and LTC3880" + tristate "Linear Technologies LTC2974, LTC2978, LTC3880, and LTC3883" default n help If you say yes here you get hardware monitoring support for Linear - Technology LTC2978 and LTC3880. + Technology LTC2974, LTC2978, LTC3880, and LTC3883. This driver can also be built as a module. If so, the module will be called ltc2978. diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c index c299392716a..6a9d6edaacb 100644 --- a/drivers/hwmon/pmbus/lm25066.c +++ b/drivers/hwmon/pmbus/lm25066.c @@ -1,7 +1,8 @@ /* - * Hardware monitoring driver for LM25066 / LM5064 / LM5066 + * Hardware monitoring driver for LM25056 / LM25066 / LM5064 / LM5066 * * Copyright (c) 2011 Ericsson AB. + * Copyright (c) 2013 Guenter Roeck * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -26,7 +27,7 @@ #include <linux/i2c.h> #include "pmbus.h" -enum chips { lm25066, lm5064, lm5066 }; +enum chips { lm25056, lm25066, lm5064, lm5066 }; #define LM25066_READ_VAUX 0xd0 #define LM25066_MFR_READ_IIN 0xd1 @@ -43,6 +44,138 @@ enum chips { lm25066, lm5064, lm5066 }; #define LM25066_DEV_SETUP_CL (1 << 4) /* Current limit */ +/* LM25056 only */ + +#define LM25056_VAUX_OV_WARN_LIMIT 0xe3 +#define LM25056_VAUX_UV_WARN_LIMIT 0xe4 + +#define LM25056_MFR_STS_VAUX_OV_WARN (1 << 1) +#define LM25056_MFR_STS_VAUX_UV_WARN (1 << 0) + +struct __coeff { + short m, b, R; +}; + +#define PSC_CURRENT_IN_L (PSC_NUM_CLASSES) +#define PSC_POWER_L (PSC_NUM_CLASSES + 1) + +static struct __coeff lm25066_coeff[4][PSC_NUM_CLASSES + 2] = { + [lm25056] = { + [PSC_VOLTAGE_IN] = { + .m = 16296, + .R = -2, + }, + [PSC_CURRENT_IN] = { + .m = 13797, + .R = -2, + }, + [PSC_CURRENT_IN_L] = { + .m = 6726, + .R = -2, + }, + [PSC_POWER] = { + .m = 5501, + .R = -3, + }, + [PSC_POWER_L] = { + .m = 26882, + .R = -4, + }, + [PSC_TEMPERATURE] = { + .m = 1580, + .b = -14500, + .R = -2, + }, + }, + [lm25066] = { + [PSC_VOLTAGE_IN] = { + .m = 22070, + .R = -2, + }, + [PSC_VOLTAGE_OUT] = { + .m = 22070, + .R = -2, + }, + [PSC_CURRENT_IN] = { + .m = 13661, + .R = -2, + }, + [PSC_CURRENT_IN_L] = { + .m = 6852, + .R = -2, + }, + [PSC_POWER] = { + .m = 736, + .R = -2, + }, + [PSC_POWER_L] = { + .m = 369, + .R = -2, + }, + [PSC_TEMPERATURE] = { + .m = 16, + }, + }, + [lm5064] = { + [PSC_VOLTAGE_IN] = { + .m = 4611, + .R = -2, + }, + [PSC_VOLTAGE_OUT] = { + .m = 4621, + .R = -2, + }, + [PSC_CURRENT_IN] = { + .m = 10742, + .R = -2, + }, + [PSC_CURRENT_IN_L] = { + .m = 5456, + .R = -2, + }, + [PSC_POWER] = { + .m = 1204, + .R = -3, + }, + [PSC_POWER_L] = { + .m = 612, + .R = -3, + }, + [PSC_TEMPERATURE] = { + .m = 16, + }, + }, + [lm5066] = { + [PSC_VOLTAGE_IN] = { + .m = 4587, + .R = -2, + }, + [PSC_VOLTAGE_OUT] = { + .m = 4587, + .R = -2, + }, + [PSC_CURRENT_IN] = { + .m = 10753, + .R = -2, + }, + [PSC_CURRENT_IN_L] = { + .m = 5405, + .R = -2, + }, + [PSC_POWER] = { + .m = 1204, + .R = -3, + }, + [PSC_POWER_L] = { + .m = 605, + .R = -3, + }, + [PSC_TEMPERATURE] = { + .m = 16, + }, + }, +}; + struct lm25066_data { int id; struct pmbus_driver_info info; @@ -56,42 +189,31 @@ static int lm25066_read_word_data(struct i2c_client *client, int page, int reg) const struct lm25066_data *data = to_lm25066_data(info); int ret; - if (page > 1) - return -ENXIO; - - /* Map READ_VAUX into READ_VOUT register on page 1 */ - if (page == 1) { - switch (reg) { - case PMBUS_READ_VOUT: - ret = pmbus_read_word_data(client, 0, - LM25066_READ_VAUX); - if (ret < 0) - break; - /* Adjust returned value to match VOUT coefficients */ - switch (data->id) { - case lm25066: - /* VOUT: 4.54 mV VAUX: 283.2 uV LSB */ - ret = DIV_ROUND_CLOSEST(ret * 2832, 45400); - break; - case lm5064: - /* VOUT: 4.53 mV VAUX: 700 uV LSB */ - ret = DIV_ROUND_CLOSEST(ret * 70, 453); - break; - case lm5066: - /* VOUT: 2.18 mV VAUX: 725 uV LSB */ - ret = DIV_ROUND_CLOSEST(ret * 725, 2180); - break; - } + switch (reg) { + case PMBUS_VIRT_READ_VMON: + ret = pmbus_read_word_data(client, 0, LM25066_READ_VAUX); + if (ret < 0) + break; + /* Adjust returned value to match VIN coefficients */ + switch (data->id) { + case lm25056: + /* VIN: 6.14 mV VAUX: 293 uV LSB */ + ret = DIV_ROUND_CLOSEST(ret * 293, 6140); break; - default: - /* No other valid registers on page 1 */ - ret = -ENXIO; + case lm25066: + /* VIN: 4.54 mV VAUX: 283.2 uV LSB */ + ret = DIV_ROUND_CLOSEST(ret * 2832, 45400); + break; + case lm5064: + /* VIN: 4.53 mV VAUX: 700 uV LSB */ + ret = DIV_ROUND_CLOSEST(ret * 70, 453); + break; + case lm5066: + /* VIN: 2.18 mV VAUX: 725 uV LSB */ + ret = DIV_ROUND_CLOSEST(ret * 725, 2180); break; } - goto done; - } - - switch (reg) { + break; case PMBUS_READ_IIN: ret = pmbus_read_word_data(client, 0, LM25066_MFR_READ_IIN); break; @@ -128,7 +250,58 @@ static int lm25066_read_word_data(struct i2c_client *client, int page, int reg) ret = -ENODATA; break; } -done: + return ret; +} + +static int lm25056_read_word_data(struct i2c_client *client, int page, int reg) +{ + int ret; + + switch (reg) { + case PMBUS_VIRT_VMON_UV_WARN_LIMIT: + ret = pmbus_read_word_data(client, 0, + LM25056_VAUX_UV_WARN_LIMIT); + if (ret < 0) + break; + /* Adjust returned value to match VIN coefficients */ + ret = DIV_ROUND_CLOSEST(ret * 293, 6140); + break; + case PMBUS_VIRT_VMON_OV_WARN_LIMIT: + ret = pmbus_read_word_data(client, 0, + LM25056_VAUX_OV_WARN_LIMIT); + if (ret < 0) + break; + /* Adjust returned value to match VIN coefficients */ + ret = DIV_ROUND_CLOSEST(ret * 293, 6140); + break; + default: + ret = lm25066_read_word_data(client, page, reg); + break; + } + return ret; +} + +static int lm25056_read_byte_data(struct i2c_client *client, int page, int reg) +{ + int ret, s; + + switch (reg) { + case PMBUS_VIRT_STATUS_VMON: + ret = pmbus_read_byte_data(client, 0, + PMBUS_STATUS_MFR_SPECIFIC); + if (ret < 0) + break; + s = 0; + if (ret & LM25056_MFR_STS_VAUX_UV_WARN) + s |= PB_VOLTAGE_UV_WARNING; + if (ret & LM25056_MFR_STS_VAUX_OV_WARN) + s |= PB_VOLTAGE_OV_WARNING; + ret = s; + break; + default: + ret = -ENODATA; + break; + } return ret; } @@ -137,19 +310,45 @@ static int lm25066_write_word_data(struct i2c_client *client, int page, int reg, { int ret; - if (page > 1) - return -ENXIO; - switch (reg) { + case PMBUS_VOUT_UV_WARN_LIMIT: + case PMBUS_OT_FAULT_LIMIT: + case PMBUS_OT_WARN_LIMIT: + case PMBUS_VIN_UV_WARN_LIMIT: + case PMBUS_VIN_OV_WARN_LIMIT: + word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff); + ret = pmbus_write_word_data(client, 0, reg, word); + pmbus_clear_cache(client); + break; case PMBUS_IIN_OC_WARN_LIMIT: + word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff); ret = pmbus_write_word_data(client, 0, LM25066_MFR_IIN_OC_WARN_LIMIT, word); + pmbus_clear_cache(client); break; case PMBUS_PIN_OP_WARN_LIMIT: + word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff); ret = pmbus_write_word_data(client, 0, LM25066_MFR_PIN_OP_WARN_LIMIT, word); + pmbus_clear_cache(client); + break; + case PMBUS_VIRT_VMON_UV_WARN_LIMIT: + /* Adjust from VIN coefficients (for LM25056) */ + word = DIV_ROUND_CLOSEST((int)word * 6140, 293); + word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff); + ret = pmbus_write_word_data(client, 0, + LM25056_VAUX_UV_WARN_LIMIT, word); + pmbus_clear_cache(client); + break; + case PMBUS_VIRT_VMON_OV_WARN_LIMIT: + /* Adjust from VIN coefficients (for LM25056) */ + word = DIV_ROUND_CLOSEST((int)word * 6140, 293); + word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff); + ret = pmbus_write_word_data(client, 0, + LM25056_VAUX_OV_WARN_LIMIT, word); + pmbus_clear_cache(client); break; case PMBUS_VIRT_RESET_PIN_HISTORY: ret = pmbus_write_byte(client, 0, LM25066_CLEAR_PIN_PEAK); @@ -161,23 +360,13 @@ static int lm25066_write_word_data(struct i2c_client *client, int page, int reg, return ret; } -static int lm25066_write_byte(struct i2c_client *client, int page, u8 value) -{ - if (page > 1) - return -ENXIO; - - if (page <= 0) - return pmbus_write_byte(client, page, value); - - return 0; -} - static int lm25066_probe(struct i2c_client *client, const struct i2c_device_id *id) { int config; struct lm25066_data *data; struct pmbus_driver_info *info; + struct __coeff *coeff; if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_READ_BYTE_DATA)) @@ -195,107 +384,54 @@ static int lm25066_probe(struct i2c_client *client, data->id = id->driver_data; info = &data->info; - info->pages = 2; + info->pages = 1; info->format[PSC_VOLTAGE_IN] = direct; info->format[PSC_VOLTAGE_OUT] = direct; info->format[PSC_CURRENT_IN] = direct; info->format[PSC_TEMPERATURE] = direct; info->format[PSC_POWER] = direct; - info->m[PSC_TEMPERATURE] = 16; - info->b[PSC_TEMPERATURE] = 0; - info->R[PSC_TEMPERATURE] = 0; - - info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT - | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_PIN | PMBUS_HAVE_IIN - | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; - info->func[1] = PMBUS_HAVE_VOUT; - - info->read_word_data = lm25066_read_word_data; + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VMON + | PMBUS_HAVE_PIN | PMBUS_HAVE_IIN | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; + + if (data->id == lm25056) { + info->func[0] |= PMBUS_HAVE_STATUS_VMON; + info->read_word_data = lm25056_read_word_data; + info->read_byte_data = lm25056_read_byte_data; + } else { + info->func[0] |= PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; + info->read_word_data = lm25066_read_word_data; + } info->write_word_data = lm25066_write_word_data; - info->write_byte = lm25066_write_byte; - - switch (id->driver_data) { - case lm25066: - info->m[PSC_VOLTAGE_IN] = 22070; - info->b[PSC_VOLTAGE_IN] = 0; - info->R[PSC_VOLTAGE_IN] = -2; - info->m[PSC_VOLTAGE_OUT] = 22070; - info->b[PSC_VOLTAGE_OUT] = 0; - info->R[PSC_VOLTAGE_OUT] = -2; - - if (config & LM25066_DEV_SETUP_CL) { - info->m[PSC_CURRENT_IN] = 6852; - info->b[PSC_CURRENT_IN] = 0; - info->R[PSC_CURRENT_IN] = -2; - info->m[PSC_POWER] = 369; - info->b[PSC_POWER] = 0; - info->R[PSC_POWER] = -2; - } else { - info->m[PSC_CURRENT_IN] = 13661; - info->b[PSC_CURRENT_IN] = 0; - info->R[PSC_CURRENT_IN] = -2; - info->m[PSC_POWER] = 736; - info->b[PSC_POWER] = 0; - info->R[PSC_POWER] = -2; - } - break; - case lm5064: - info->m[PSC_VOLTAGE_IN] = 22075; - info->b[PSC_VOLTAGE_IN] = 0; - info->R[PSC_VOLTAGE_IN] = -2; - info->m[PSC_VOLTAGE_OUT] = 22075; - info->b[PSC_VOLTAGE_OUT] = 0; - info->R[PSC_VOLTAGE_OUT] = -2; - - if (config & LM25066_DEV_SETUP_CL) { - info->m[PSC_CURRENT_IN] = 6713; - info->b[PSC_CURRENT_IN] = 0; - info->R[PSC_CURRENT_IN] = -2; - info->m[PSC_POWER] = 3619; - info->b[PSC_POWER] = 0; - info->R[PSC_POWER] = -3; - } else { - info->m[PSC_CURRENT_IN] = 13426; - info->b[PSC_CURRENT_IN] = 0; - info->R[PSC_CURRENT_IN] = -2; - info->m[PSC_POWER] = 7238; - info->b[PSC_POWER] = 0; - info->R[PSC_POWER] = -3; - } - break; - case lm5066: - info->m[PSC_VOLTAGE_IN] = 4587; - info->b[PSC_VOLTAGE_IN] = 0; - info->R[PSC_VOLTAGE_IN] = -2; - info->m[PSC_VOLTAGE_OUT] = 4587; - info->b[PSC_VOLTAGE_OUT] = 0; - info->R[PSC_VOLTAGE_OUT] = -2; - - if (config & LM25066_DEV_SETUP_CL) { - info->m[PSC_CURRENT_IN] = 10753; - info->b[PSC_CURRENT_IN] = 0; - info->R[PSC_CURRENT_IN] = -2; - info->m[PSC_POWER] = 1204; - info->b[PSC_POWER] = 0; - info->R[PSC_POWER] = -3; - } else { - info->m[PSC_CURRENT_IN] = 5405; - info->b[PSC_CURRENT_IN] = 0; - info->R[PSC_CURRENT_IN] = -2; - info->m[PSC_POWER] = 605; - info->b[PSC_POWER] = 0; - info->R[PSC_POWER] = -3; - } - break; - default: - return -ENODEV; + + coeff = &lm25066_coeff[data->id][0]; + info->m[PSC_TEMPERATURE] = coeff[PSC_TEMPERATURE].m; + info->b[PSC_TEMPERATURE] = coeff[PSC_TEMPERATURE].b; + info->R[PSC_TEMPERATURE] = coeff[PSC_TEMPERATURE].R; + info->m[PSC_VOLTAGE_IN] = coeff[PSC_VOLTAGE_IN].m; + info->b[PSC_VOLTAGE_IN] = coeff[PSC_VOLTAGE_IN].b; + info->R[PSC_VOLTAGE_IN] = coeff[PSC_VOLTAGE_IN].R; + info->m[PSC_VOLTAGE_OUT] = coeff[PSC_VOLTAGE_OUT].m; + info->b[PSC_VOLTAGE_OUT] = coeff[PSC_VOLTAGE_OUT].b; + info->R[PSC_VOLTAGE_OUT] = coeff[PSC_VOLTAGE_OUT].R; + info->b[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN].b; + info->R[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN].R; + info->b[PSC_POWER] = coeff[PSC_POWER].b; + info->R[PSC_POWER] = coeff[PSC_POWER].R; + if (config & LM25066_DEV_SETUP_CL) { + info->m[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN_L].m; + info->m[PSC_POWER] = coeff[PSC_POWER_L].m; + } else { + info->m[PSC_CURRENT_IN] = coeff[PSC_CURRENT_IN].m; + info->m[PSC_POWER] = coeff[PSC_POWER].m; } return pmbus_do_probe(client, id, info); } static const struct i2c_device_id lm25066_id[] = { + {"lm25056", lm25056}, {"lm25066", lm25066}, {"lm5064", lm5064}, {"lm5066", lm5066}, @@ -317,5 +453,5 @@ static struct i2c_driver lm25066_driver = { module_i2c_driver(lm25066_driver); MODULE_AUTHOR("Guenter Roeck"); -MODULE_DESCRIPTION("PMBus driver for LM25066/LM5064/LM5066"); +MODULE_DESCRIPTION("PMBus driver for LM25056/LM25066/LM5064/LM5066"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c index 6d6130752f9..586a89ef9e0 100644 --- a/drivers/hwmon/pmbus/ltc2978.c +++ b/drivers/hwmon/pmbus/ltc2978.c @@ -1,7 +1,8 @@ /* - * Hardware monitoring driver for LTC2978 and LTC3880 + * Hardware monitoring driver for LTC2974, LTC2978, LTC3880, and LTC3883 * * Copyright (c) 2011 Ericsson AB. + * Copyright (c) 2013 Guenter Roeck * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -26,28 +27,43 @@ #include <linux/i2c.h> #include "pmbus.h" -enum chips { ltc2978, ltc3880 }; +enum chips { ltc2974, ltc2978, ltc3880, ltc3883 }; -/* LTC2978 and LTC3880 */ +/* Common for all chips */ #define LTC2978_MFR_VOUT_PEAK 0xdd #define LTC2978_MFR_VIN_PEAK 0xde #define LTC2978_MFR_TEMPERATURE_PEAK 0xdf #define LTC2978_MFR_SPECIAL_ID 0xe7 -/* LTC2978 only */ +/* LTC2974 and LTC2978 */ #define LTC2978_MFR_VOUT_MIN 0xfb #define LTC2978_MFR_VIN_MIN 0xfc #define LTC2978_MFR_TEMPERATURE_MIN 0xfd -/* LTC3880 only */ +/* LTC2974 only */ +#define LTC2974_MFR_IOUT_PEAK 0xd7 +#define LTC2974_MFR_IOUT_MIN 0xd8 + +/* LTC3880 and LTC3883 */ #define LTC3880_MFR_IOUT_PEAK 0xd7 #define LTC3880_MFR_CLEAR_PEAKS 0xe3 #define LTC3880_MFR_TEMPERATURE2_PEAK 0xf4 +/* LTC3883 only */ +#define LTC3883_MFR_IIN_PEAK 0xe1 + +#define LTC2974_ID 0x0212 #define LTC2978_ID_REV1 0x0121 #define LTC2978_ID_REV2 0x0122 #define LTC3880_ID 0x4000 #define LTC3880_ID_MASK 0xff00 +#define LTC3883_ID 0x4300 +#define LTC3883_ID_MASK 0xff00 + +#define LTC2974_NUM_PAGES 4 +#define LTC2978_NUM_PAGES 8 +#define LTC3880_NUM_PAGES 2 +#define LTC3883_NUM_PAGES 1 /* * LTC2978 clears peak data whenever the CLEAR_FAULTS command is executed, which @@ -56,13 +72,15 @@ enum chips { ltc2978, ltc3880 }; * internal cache of measured peak data, which is only cleared if an explicit * "clear peak" command is executed for the sensor in question. */ + struct ltc2978_data { enum chips id; - int vin_min, vin_max; - int temp_min, temp_max[2]; - int vout_min[8], vout_max[8]; - int iout_max[2]; - int temp2_max; + u16 vin_min, vin_max; + u16 temp_min[LTC2974_NUM_PAGES], temp_max[LTC2974_NUM_PAGES]; + u16 vout_min[LTC2978_NUM_PAGES], vout_max[LTC2978_NUM_PAGES]; + u16 iout_min[LTC2974_NUM_PAGES], iout_max[LTC2974_NUM_PAGES]; + u16 iin_max; + u16 temp2_max; struct pmbus_driver_info info; }; @@ -167,9 +185,9 @@ static int ltc2978_read_word_data(struct i2c_client *client, int page, int reg) LTC2978_MFR_TEMPERATURE_MIN); if (ret >= 0) { if (lin11_to_val(ret) - < lin11_to_val(data->temp_min)) - data->temp_min = ret; - ret = data->temp_min; + < lin11_to_val(data->temp_min[page])) + data->temp_min[page] = ret; + ret = data->temp_min[page]; } break; case PMBUS_VIRT_READ_IOUT_MAX: @@ -185,6 +203,41 @@ static int ltc2978_read_word_data(struct i2c_client *client, int page, int reg) return ret; } +static int ltc2974_read_word_data(struct i2c_client *client, int page, int reg) +{ + const struct pmbus_driver_info *info = pmbus_get_driver_info(client); + struct ltc2978_data *data = to_ltc2978_data(info); + int ret; + + switch (reg) { + case PMBUS_VIRT_READ_IOUT_MAX: + ret = pmbus_read_word_data(client, page, LTC2974_MFR_IOUT_PEAK); + if (ret >= 0) { + if (lin11_to_val(ret) + > lin11_to_val(data->iout_max[page])) + data->iout_max[page] = ret; + ret = data->iout_max[page]; + } + break; + case PMBUS_VIRT_READ_IOUT_MIN: + ret = pmbus_read_word_data(client, page, LTC2974_MFR_IOUT_MIN); + if (ret >= 0) { + if (lin11_to_val(ret) + < lin11_to_val(data->iout_min[page])) + data->iout_min[page] = ret; + ret = data->iout_min[page]; + } + break; + case PMBUS_VIRT_RESET_IOUT_HISTORY: + ret = 0; + break; + default: + ret = ltc2978_read_word_data(client, page, reg); + break; + } + return ret; +} + static int ltc3880_read_word_data(struct i2c_client *client, int page, int reg) { const struct pmbus_driver_info *info = pmbus_get_driver_info(client); @@ -226,15 +279,41 @@ static int ltc3880_read_word_data(struct i2c_client *client, int page, int reg) return ret; } +static int ltc3883_read_word_data(struct i2c_client *client, int page, int reg) +{ + const struct pmbus_driver_info *info = pmbus_get_driver_info(client); + struct ltc2978_data *data = to_ltc2978_data(info); + int ret; + + switch (reg) { + case PMBUS_VIRT_READ_IIN_MAX: + ret = pmbus_read_word_data(client, page, LTC3883_MFR_IIN_PEAK); + if (ret >= 0) { + if (lin11_to_val(ret) + > lin11_to_val(data->iin_max)) + data->iin_max = ret; + ret = data->iin_max; + } + break; + case PMBUS_VIRT_RESET_IIN_HISTORY: + ret = 0; + break; + default: + ret = ltc3880_read_word_data(client, page, reg); + break; + } + return ret; +} + static int ltc2978_clear_peaks(struct i2c_client *client, int page, enum chips id) { int ret; - if (id == ltc2978) - ret = pmbus_write_byte(client, page, PMBUS_CLEAR_FAULTS); - else + if (id == ltc3880 || id == ltc3883) ret = pmbus_write_byte(client, 0, LTC3880_MFR_CLEAR_PEAKS); + else + ret = pmbus_write_byte(client, page, PMBUS_CLEAR_FAULTS); return ret; } @@ -247,8 +326,13 @@ static int ltc2978_write_word_data(struct i2c_client *client, int page, int ret; switch (reg) { + case PMBUS_VIRT_RESET_IIN_HISTORY: + data->iin_max = 0x7c00; + ret = ltc2978_clear_peaks(client, page, data->id); + break; case PMBUS_VIRT_RESET_IOUT_HISTORY: data->iout_max[page] = 0x7c00; + data->iout_min[page] = 0xfbff; ret = ltc2978_clear_peaks(client, page, data->id); break; case PMBUS_VIRT_RESET_TEMP2_HISTORY: @@ -266,7 +350,7 @@ static int ltc2978_write_word_data(struct i2c_client *client, int page, ret = ltc2978_clear_peaks(client, page, data->id); break; case PMBUS_VIRT_RESET_TEMP_HISTORY: - data->temp_min = 0x7bff; + data->temp_min[page] = 0x7bff; data->temp_max[page] = 0x7c00; ret = ltc2978_clear_peaks(client, page, data->id); break; @@ -278,8 +362,10 @@ static int ltc2978_write_word_data(struct i2c_client *client, int page, } static const struct i2c_device_id ltc2978_id[] = { + {"ltc2974", ltc2974}, {"ltc2978", ltc2978}, {"ltc3880", ltc3880}, + {"ltc3883", ltc3883}, {} }; MODULE_DEVICE_TABLE(i2c, ltc2978_id); @@ -304,10 +390,14 @@ static int ltc2978_probe(struct i2c_client *client, if (chip_id < 0) return chip_id; - if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2) { + if (chip_id == LTC2974_ID) { + data->id = ltc2974; + } else if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2) { data->id = ltc2978; } else if ((chip_id & LTC3880_ID_MASK) == LTC3880_ID) { data->id = ltc3880; + } else if ((chip_id & LTC3883_ID_MASK) == LTC3883_ID) { + data->id = ltc3883; } else { dev_err(&client->dev, "Unsupported chip ID 0x%x\n", chip_id); return -ENODEV; @@ -323,26 +413,45 @@ static int ltc2978_probe(struct i2c_client *client, data->vin_min = 0x7bff; data->vin_max = 0x7c00; - data->temp_min = 0x7bff; + for (i = 0; i < ARRAY_SIZE(data->vout_min); i++) + data->vout_min[i] = 0xffff; + for (i = 0; i < ARRAY_SIZE(data->iout_min); i++) + data->iout_min[i] = 0xfbff; + for (i = 0; i < ARRAY_SIZE(data->iout_max); i++) + data->iout_max[i] = 0x7c00; + for (i = 0; i < ARRAY_SIZE(data->temp_min); i++) + data->temp_min[i] = 0x7bff; for (i = 0; i < ARRAY_SIZE(data->temp_max); i++) data->temp_max[i] = 0x7c00; data->temp2_max = 0x7c00; switch (data->id) { + case ltc2974: + info->read_word_data = ltc2974_read_word_data; + info->pages = LTC2974_NUM_PAGES; + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_TEMP2; + for (i = 0; i < info->pages; i++) { + info->func[i] |= PMBUS_HAVE_VOUT + | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_POUT + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT; + } + break; case ltc2978: info->read_word_data = ltc2978_read_word_data; - info->pages = 8; + info->pages = LTC2978_NUM_PAGES; info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; - for (i = 1; i < 8; i++) { + for (i = 1; i < LTC2978_NUM_PAGES; i++) { info->func[i] = PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT; } break; case ltc3880: info->read_word_data = ltc3880_read_word_data; - info->pages = 2; + info->pages = LTC3880_NUM_PAGES; info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN | PMBUS_HAVE_STATUS_INPUT | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT @@ -353,15 +462,20 @@ static int ltc2978_probe(struct i2c_client *client, | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP; - data->iout_max[0] = 0x7c00; - data->iout_max[1] = 0x7c00; + break; + case ltc3883: + info->read_word_data = ltc3883_read_word_data; + info->pages = LTC3883_NUM_PAGES; + info->func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN + | PMBUS_HAVE_STATUS_INPUT + | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT + | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT + | PMBUS_HAVE_PIN | PMBUS_HAVE_POUT | PMBUS_HAVE_TEMP + | PMBUS_HAVE_TEMP2 | PMBUS_HAVE_STATUS_TEMP; break; default: return -ENODEV; } - for (i = 0; i < info->pages; i++) - data->vout_min[i] = 0xffff; - return pmbus_do_probe(client, id, info); } @@ -378,5 +492,5 @@ static struct i2c_driver ltc2978_driver = { module_i2c_driver(ltc2978_driver); MODULE_AUTHOR("Guenter Roeck"); -MODULE_DESCRIPTION("PMBus driver for LTC2978 and LTC3880"); +MODULE_DESCRIPTION("PMBus driver for LTC2974, LTC2978, LTC3880, and LTC3883"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/s3c-hwmon.c b/drivers/hwmon/s3c-hwmon.c index ff2ae0252a4..a9f7e804f1e 100644 --- a/drivers/hwmon/s3c-hwmon.c +++ b/drivers/hwmon/s3c-hwmon.c @@ -107,17 +107,14 @@ static ssize_t s3c_hwmon_show_raw(struct device *dev, return (ret < 0) ? ret : snprintf(buf, PAGE_SIZE, "%d\n", ret); } -#define DEF_ADC_ATTR(x) \ - static SENSOR_DEVICE_ATTR(adc##x##_raw, S_IRUGO, s3c_hwmon_show_raw, NULL, x) - -DEF_ADC_ATTR(0); -DEF_ADC_ATTR(1); -DEF_ADC_ATTR(2); -DEF_ADC_ATTR(3); -DEF_ADC_ATTR(4); -DEF_ADC_ATTR(5); -DEF_ADC_ATTR(6); -DEF_ADC_ATTR(7); +static SENSOR_DEVICE_ATTR(adc0_raw, S_IRUGO, s3c_hwmon_show_raw, NULL, 0); +static SENSOR_DEVICE_ATTR(adc1_raw, S_IRUGO, s3c_hwmon_show_raw, NULL, 1); +static SENSOR_DEVICE_ATTR(adc2_raw, S_IRUGO, s3c_hwmon_show_raw, NULL, 2); +static SENSOR_DEVICE_ATTR(adc3_raw, S_IRUGO, s3c_hwmon_show_raw, NULL, 3); +static SENSOR_DEVICE_ATTR(adc4_raw, S_IRUGO, s3c_hwmon_show_raw, NULL, 4); +static SENSOR_DEVICE_ATTR(adc5_raw, S_IRUGO, s3c_hwmon_show_raw, NULL, 5); +static SENSOR_DEVICE_ATTR(adc6_raw, S_IRUGO, s3c_hwmon_show_raw, NULL, 6); +static SENSOR_DEVICE_ATTR(adc7_raw, S_IRUGO, s3c_hwmon_show_raw, NULL, 7); static struct attribute *s3c_hwmon_attrs[9] = { &sensor_dev_attr_adc0_raw.dev_attr.attr, diff --git a/drivers/hwmon/sch56xx-common.c b/drivers/hwmon/sch56xx-common.c index d00b30adc34..73868198328 100644 --- a/drivers/hwmon/sch56xx-common.c +++ b/drivers/hwmon/sch56xx-common.c @@ -161,8 +161,8 @@ static int sch56xx_send_cmd(u16 addr, u8 cmd, u16 reg, u8 v) break; } if (i == max_busy_polls + max_lazy_polls) { - pr_err("Max retries exceeded reading virtual " - "register 0x%04hx (%d)\n", reg, 1); + pr_err("Max retries exceeded reading virtual register 0x%04hx (%d)\n", + reg, 1); return -EIO; } @@ -178,12 +178,12 @@ static int sch56xx_send_cmd(u16 addr, u8 cmd, u16 reg, u8 v) break; if (i == 0) - pr_warn("EC reports: 0x%02x reading virtual register " - "0x%04hx\n", (unsigned int)val, reg); + pr_warn("EC reports: 0x%02x reading virtual register 0x%04hx\n", + (unsigned int)val, reg); } if (i == max_busy_polls) { - pr_err("Max retries exceeded reading virtual " - "register 0x%04hx (%d)\n", reg, 2); + pr_err("Max retries exceeded reading virtual register 0x%04hx (%d)\n", + reg, 2); return -EIO; } diff --git a/drivers/hwmon/sis5595.c b/drivers/hwmon/sis5595.c index c35847a1a0a..1404e6319de 100644 --- a/drivers/hwmon/sis5595.c +++ b/drivers/hwmon/sis5595.c @@ -456,8 +456,9 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *da, data->fan_div[nr] = 3; break; default: - dev_err(dev, "fan_div value %ld not " - "supported. Choose one of 1, 2, 4 or 8!\n", val); + dev_err(dev, + "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", + val); mutex_unlock(&data->update_lock); return -EINVAL; } diff --git a/drivers/hwmon/thmc50.c b/drivers/hwmon/thmc50.c index 4b59eb53b18..db288db7d3e 100644 --- a/drivers/hwmon/thmc50.c +++ b/drivers/hwmon/thmc50.c @@ -41,8 +41,8 @@ enum chips { thmc50, adm1022 }; static unsigned short adm1022_temp3[16]; static unsigned int adm1022_temp3_num; module_param_array(adm1022_temp3, ushort, &adm1022_temp3_num, 0); -MODULE_PARM_DESC(adm1022_temp3, "List of adapter,address pairs " - "to enable 3rd temperature (ADM1022 only)"); +MODULE_PARM_DESC(adm1022_temp3, + "List of adapter,address pairs to enable 3rd temperature (ADM1022 only)"); /* Many THMC50 constants specified below */ @@ -312,8 +312,7 @@ static int thmc50_detect(struct i2c_client *client, const char *type_name; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { - pr_debug("thmc50: detect failed, " - "smbus byte data not supported!\n"); + pr_debug("thmc50: detect failed, smbus byte data not supported!\n"); return -ENODEV; } diff --git a/drivers/hwmon/tmp102.c b/drivers/hwmon/tmp102.c index 523dd89ba49..d7b47abf37f 100644 --- a/drivers/hwmon/tmp102.c +++ b/drivers/hwmon/tmp102.c @@ -155,8 +155,8 @@ static int tmp102_probe(struct i2c_client *client, if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA)) { - dev_err(&client->dev, "adapter doesn't support SMBus word " - "transactions\n"); + dev_err(&client->dev, + "adapter doesn't support SMBus word transactions\n"); return -ENODEV; } diff --git a/drivers/hwmon/tmp401.c b/drivers/hwmon/tmp401.c index c85f6967ccc..a478454f690 100644 --- a/drivers/hwmon/tmp401.c +++ b/drivers/hwmon/tmp401.c @@ -5,6 +5,9 @@ * Gabriel Konat, Sander Leget, Wouter Willems * Copyright (C) 2009 Andre Prendel <andre.prendel@gmx.de> * + * Cleanup and support for TMP431 and TMP432 by Guenter Roeck + * Copyright (c) 2013 Guenter Roeck <linux@roeck-us.net> + * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or @@ -30,6 +33,7 @@ #include <linux/module.h> #include <linux/init.h> +#include <linux/bitops.h> #include <linux/slab.h> #include <linux/jiffies.h> #include <linux/i2c.h> @@ -40,9 +44,9 @@ #include <linux/sysfs.h> /* Addresses to scan */ -static const unsigned short normal_i2c[] = { 0x4c, I2C_CLIENT_END }; +static const unsigned short normal_i2c[] = { 0x4c, 0x4d, 0x4e, I2C_CLIENT_END }; -enum chips { tmp401, tmp411 }; +enum chips { tmp401, tmp411, tmp431, tmp432 }; /* * The TMP401 registers, note some registers have different addresses for @@ -54,42 +58,84 @@ enum chips { tmp401, tmp411 }; #define TMP401_CONVERSION_RATE_READ 0x04 #define TMP401_CONVERSION_RATE_WRITE 0x0A #define TMP401_TEMP_CRIT_HYST 0x21 -#define TMP401_CONSECUTIVE_ALERT 0x22 #define TMP401_MANUFACTURER_ID_REG 0xFE #define TMP401_DEVICE_ID_REG 0xFF -#define TMP411_N_FACTOR_REG 0x18 - -static const u8 TMP401_TEMP_MSB[2] = { 0x00, 0x01 }; -static const u8 TMP401_TEMP_LSB[2] = { 0x15, 0x10 }; -static const u8 TMP401_TEMP_LOW_LIMIT_MSB_READ[2] = { 0x06, 0x08 }; -static const u8 TMP401_TEMP_LOW_LIMIT_MSB_WRITE[2] = { 0x0C, 0x0E }; -static const u8 TMP401_TEMP_LOW_LIMIT_LSB[2] = { 0x17, 0x14 }; -static const u8 TMP401_TEMP_HIGH_LIMIT_MSB_READ[2] = { 0x05, 0x07 }; -static const u8 TMP401_TEMP_HIGH_LIMIT_MSB_WRITE[2] = { 0x0B, 0x0D }; -static const u8 TMP401_TEMP_HIGH_LIMIT_LSB[2] = { 0x16, 0x13 }; -/* These are called the THERM limit / hysteresis / mask in the datasheet */ -static const u8 TMP401_TEMP_CRIT_LIMIT[2] = { 0x20, 0x19 }; - -static const u8 TMP411_TEMP_LOWEST_MSB[2] = { 0x30, 0x34 }; -static const u8 TMP411_TEMP_LOWEST_LSB[2] = { 0x31, 0x35 }; -static const u8 TMP411_TEMP_HIGHEST_MSB[2] = { 0x32, 0x36 }; -static const u8 TMP411_TEMP_HIGHEST_LSB[2] = { 0x33, 0x37 }; + +static const u8 TMP401_TEMP_MSB_READ[6][2] = { + { 0x00, 0x01 }, /* temp */ + { 0x06, 0x08 }, /* low limit */ + { 0x05, 0x07 }, /* high limit */ + { 0x20, 0x19 }, /* therm (crit) limit */ + { 0x30, 0x34 }, /* lowest */ + { 0x32, 0x36 }, /* highest */ +}; + +static const u8 TMP401_TEMP_MSB_WRITE[6][2] = { + { 0, 0 }, /* temp (unused) */ + { 0x0C, 0x0E }, /* low limit */ + { 0x0B, 0x0D }, /* high limit */ + { 0x20, 0x19 }, /* therm (crit) limit */ + { 0x30, 0x34 }, /* lowest */ + { 0x32, 0x36 }, /* highest */ +}; + +static const u8 TMP401_TEMP_LSB[6][2] = { + { 0x15, 0x10 }, /* temp */ + { 0x17, 0x14 }, /* low limit */ + { 0x16, 0x13 }, /* high limit */ + { 0, 0 }, /* therm (crit) limit (unused) */ + { 0x31, 0x35 }, /* lowest */ + { 0x33, 0x37 }, /* highest */ +}; + +static const u8 TMP432_TEMP_MSB_READ[4][3] = { + { 0x00, 0x01, 0x23 }, /* temp */ + { 0x06, 0x08, 0x16 }, /* low limit */ + { 0x05, 0x07, 0x15 }, /* high limit */ + { 0x20, 0x19, 0x1A }, /* therm (crit) limit */ +}; + +static const u8 TMP432_TEMP_MSB_WRITE[4][3] = { + { 0, 0, 0 }, /* temp - unused */ + { 0x0C, 0x0E, 0x16 }, /* low limit */ + { 0x0B, 0x0D, 0x15 }, /* high limit */ + { 0x20, 0x19, 0x1A }, /* therm (crit) limit */ +}; + +static const u8 TMP432_TEMP_LSB[3][3] = { + { 0x29, 0x10, 0x24 }, /* temp */ + { 0x3E, 0x14, 0x18 }, /* low limit */ + { 0x3D, 0x13, 0x17 }, /* high limit */ +}; + +/* [0] = fault, [1] = low, [2] = high, [3] = therm/crit */ +static const u8 TMP432_STATUS_REG[] = { + 0x1b, 0x36, 0x35, 0x37 }; /* Flags */ -#define TMP401_CONFIG_RANGE 0x04 -#define TMP401_CONFIG_SHUTDOWN 0x40 -#define TMP401_STATUS_LOCAL_CRIT 0x01 -#define TMP401_STATUS_REMOTE_CRIT 0x02 -#define TMP401_STATUS_REMOTE_OPEN 0x04 -#define TMP401_STATUS_REMOTE_LOW 0x08 -#define TMP401_STATUS_REMOTE_HIGH 0x10 -#define TMP401_STATUS_LOCAL_LOW 0x20 -#define TMP401_STATUS_LOCAL_HIGH 0x40 +#define TMP401_CONFIG_RANGE BIT(2) +#define TMP401_CONFIG_SHUTDOWN BIT(6) +#define TMP401_STATUS_LOCAL_CRIT BIT(0) +#define TMP401_STATUS_REMOTE_CRIT BIT(1) +#define TMP401_STATUS_REMOTE_OPEN BIT(2) +#define TMP401_STATUS_REMOTE_LOW BIT(3) +#define TMP401_STATUS_REMOTE_HIGH BIT(4) +#define TMP401_STATUS_LOCAL_LOW BIT(5) +#define TMP401_STATUS_LOCAL_HIGH BIT(6) + +/* On TMP432, each status has its own register */ +#define TMP432_STATUS_LOCAL BIT(0) +#define TMP432_STATUS_REMOTE1 BIT(1) +#define TMP432_STATUS_REMOTE2 BIT(2) /* Manufacturer / Device ID's */ #define TMP401_MANUFACTURER_ID 0x55 #define TMP401_DEVICE_ID 0x11 -#define TMP411_DEVICE_ID 0x12 +#define TMP411A_DEVICE_ID 0x12 +#define TMP411B_DEVICE_ID 0x13 +#define TMP411C_DEVICE_ID 0x10 +#define TMP431_DEVICE_ID 0x31 +#define TMP432_DEVICE_ID 0x32 /* * Driver data (common to all clients) @@ -98,6 +144,8 @@ static const u8 TMP411_TEMP_HIGHEST_LSB[2] = { 0x33, 0x37 }; static const struct i2c_device_id tmp401_id[] = { { "tmp401", tmp401 }, { "tmp411", tmp411 }, + { "tmp431", tmp431 }, + { "tmp432", tmp432 }, { } }; MODULE_DEVICE_TABLE(i2c, tmp401_id); @@ -113,16 +161,13 @@ struct tmp401_data { unsigned long last_updated; /* in jiffies */ enum chips kind; + unsigned int update_interval; /* in milliseconds */ + /* register values */ - u8 status; + u8 status[4]; u8 config; - u16 temp[2]; - u16 temp_low[2]; - u16 temp_high[2]; - u8 temp_crit[2]; + u16 temp[6][3]; u8 temp_crit_hyst; - u16 temp_lowest[2]; - u16 temp_highest[2]; }; /* @@ -136,31 +181,10 @@ static int tmp401_register_to_temp(u16 reg, u8 config) if (config & TMP401_CONFIG_RANGE) temp -= 64 * 256; - return (temp * 625 + 80) / 160; -} - -static u16 tmp401_temp_to_register(long temp, u8 config) -{ - if (config & TMP401_CONFIG_RANGE) { - temp = clamp_val(temp, -64000, 191000); - temp += 64000; - } else - temp = clamp_val(temp, 0, 127000); - - return (temp * 160 + 312) / 625; -} - -static int tmp401_crit_register_to_temp(u8 reg, u8 config) -{ - int temp = reg; - - if (config & TMP401_CONFIG_RANGE) - temp -= 64; - - return temp * 1000; + return DIV_ROUND_CLOSEST(temp * 125, 32); } -static u8 tmp401_crit_temp_to_register(long temp, u8 config) +static u16 tmp401_temp_to_register(long temp, u8 config, int zbits) { if (config & TMP401_CONFIG_RANGE) { temp = clamp_val(temp, -64000, 191000); @@ -168,113 +192,127 @@ static u8 tmp401_crit_temp_to_register(long temp, u8 config) } else temp = clamp_val(temp, 0, 127000); - return (temp + 500) / 1000; + return DIV_ROUND_CLOSEST(temp * (1 << (8 - zbits)), 1000) << zbits; } -static struct tmp401_data *tmp401_update_device_reg16( - struct i2c_client *client, struct tmp401_data *data) +static int tmp401_update_device_reg16(struct i2c_client *client, + struct tmp401_data *data) { - int i; - - for (i = 0; i < 2; i++) { - /* - * High byte must be read first immediately followed - * by the low byte - */ - data->temp[i] = i2c_smbus_read_byte_data(client, - TMP401_TEMP_MSB[i]) << 8; - data->temp[i] |= i2c_smbus_read_byte_data(client, - TMP401_TEMP_LSB[i]); - data->temp_low[i] = i2c_smbus_read_byte_data(client, - TMP401_TEMP_LOW_LIMIT_MSB_READ[i]) << 8; - data->temp_low[i] |= i2c_smbus_read_byte_data(client, - TMP401_TEMP_LOW_LIMIT_LSB[i]); - data->temp_high[i] = i2c_smbus_read_byte_data(client, - TMP401_TEMP_HIGH_LIMIT_MSB_READ[i]) << 8; - data->temp_high[i] |= i2c_smbus_read_byte_data(client, - TMP401_TEMP_HIGH_LIMIT_LSB[i]); - data->temp_crit[i] = i2c_smbus_read_byte_data(client, - TMP401_TEMP_CRIT_LIMIT[i]); - - if (data->kind == tmp411) { - data->temp_lowest[i] = i2c_smbus_read_byte_data(client, - TMP411_TEMP_LOWEST_MSB[i]) << 8; - data->temp_lowest[i] |= i2c_smbus_read_byte_data( - client, TMP411_TEMP_LOWEST_LSB[i]); - - data->temp_highest[i] = i2c_smbus_read_byte_data( - client, TMP411_TEMP_HIGHEST_MSB[i]) << 8; - data->temp_highest[i] |= i2c_smbus_read_byte_data( - client, TMP411_TEMP_HIGHEST_LSB[i]); + int i, j, val; + int num_regs = data->kind == tmp411 ? 6 : 4; + int num_sensors = data->kind == tmp432 ? 3 : 2; + + for (i = 0; i < num_sensors; i++) { /* local / r1 / r2 */ + for (j = 0; j < num_regs; j++) { /* temp / low / ... */ + u8 regaddr; + /* + * High byte must be read first immediately followed + * by the low byte + */ + regaddr = data->kind == tmp432 ? + TMP432_TEMP_MSB_READ[j][i] : + TMP401_TEMP_MSB_READ[j][i]; + val = i2c_smbus_read_byte_data(client, regaddr); + if (val < 0) + return val; + data->temp[j][i] = val << 8; + if (j == 3) /* crit is msb only */ + continue; + regaddr = data->kind == tmp432 ? TMP432_TEMP_LSB[j][i] + : TMP401_TEMP_LSB[j][i]; + val = i2c_smbus_read_byte_data(client, regaddr); + if (val < 0) + return val; + data->temp[j][i] |= val; } } - return data; + return 0; } static struct tmp401_data *tmp401_update_device(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct tmp401_data *data = i2c_get_clientdata(client); + struct tmp401_data *ret = data; + int i, val; + unsigned long next_update; mutex_lock(&data->update_lock); - if (time_after(jiffies, data->last_updated + HZ) || !data->valid) { - data->status = i2c_smbus_read_byte_data(client, TMP401_STATUS); - data->config = i2c_smbus_read_byte_data(client, - TMP401_CONFIG_READ); - tmp401_update_device_reg16(client, data); + next_update = data->last_updated + + msecs_to_jiffies(data->update_interval) + 1; + if (time_after(jiffies, next_update) || !data->valid) { + if (data->kind != tmp432) { + /* + * The driver uses the TMP432 status format internally. + * Convert status to TMP432 format for other chips. + */ + val = i2c_smbus_read_byte_data(client, TMP401_STATUS); + if (val < 0) { + ret = ERR_PTR(val); + goto abort; + } + data->status[0] = + (val & TMP401_STATUS_REMOTE_OPEN) >> 1; + data->status[1] = + ((val & TMP401_STATUS_REMOTE_LOW) >> 2) | + ((val & TMP401_STATUS_LOCAL_LOW) >> 5); + data->status[2] = + ((val & TMP401_STATUS_REMOTE_HIGH) >> 3) | + ((val & TMP401_STATUS_LOCAL_HIGH) >> 6); + data->status[3] = val & (TMP401_STATUS_LOCAL_CRIT + | TMP401_STATUS_REMOTE_CRIT); + } else { + for (i = 0; i < ARRAY_SIZE(data->status); i++) { + val = i2c_smbus_read_byte_data(client, + TMP432_STATUS_REG[i]); + if (val < 0) { + ret = ERR_PTR(val); + goto abort; + } + data->status[i] = val; + } + } - data->temp_crit_hyst = i2c_smbus_read_byte_data(client, - TMP401_TEMP_CRIT_HYST); + val = i2c_smbus_read_byte_data(client, TMP401_CONFIG_READ); + if (val < 0) { + ret = ERR_PTR(val); + goto abort; + } + data->config = val; + val = tmp401_update_device_reg16(client, data); + if (val < 0) { + ret = ERR_PTR(val); + goto abort; + } + val = i2c_smbus_read_byte_data(client, TMP401_TEMP_CRIT_HYST); + if (val < 0) { + ret = ERR_PTR(val); + goto abort; + } + data->temp_crit_hyst = val; data->last_updated = jiffies; data->valid = 1; } +abort: mutex_unlock(&data->update_lock); - - return data; -} - -static ssize_t show_temp_value(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct tmp401_data *data = tmp401_update_device(dev); - - return sprintf(buf, "%d\n", - tmp401_register_to_temp(data->temp[index], data->config)); -} - -static ssize_t show_temp_min(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct tmp401_data *data = tmp401_update_device(dev); - - return sprintf(buf, "%d\n", - tmp401_register_to_temp(data->temp_low[index], data->config)); + return ret; } -static ssize_t show_temp_max(struct device *dev, - struct device_attribute *devattr, char *buf) +static ssize_t show_temp(struct device *dev, + struct device_attribute *devattr, char *buf) { - int index = to_sensor_dev_attr(devattr)->index; + int nr = to_sensor_dev_attr_2(devattr)->nr; + int index = to_sensor_dev_attr_2(devattr)->index; struct tmp401_data *data = tmp401_update_device(dev); - return sprintf(buf, "%d\n", - tmp401_register_to_temp(data->temp_high[index], data->config)); -} - -static ssize_t show_temp_crit(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct tmp401_data *data = tmp401_update_device(dev); + if (IS_ERR(data)) + return PTR_ERR(data); return sprintf(buf, "%d\n", - tmp401_crit_register_to_temp(data->temp_crit[index], - data->config)); + tmp401_register_to_temp(data->temp[nr][index], data->config)); } static ssize_t show_temp_crit_hyst(struct device *dev, @@ -283,122 +321,60 @@ static ssize_t show_temp_crit_hyst(struct device *dev, int temp, index = to_sensor_dev_attr(devattr)->index; struct tmp401_data *data = tmp401_update_device(dev); + if (IS_ERR(data)) + return PTR_ERR(data); + mutex_lock(&data->update_lock); - temp = tmp401_crit_register_to_temp(data->temp_crit[index], - data->config); + temp = tmp401_register_to_temp(data->temp[3][index], data->config); temp -= data->temp_crit_hyst * 1000; mutex_unlock(&data->update_lock); return sprintf(buf, "%d\n", temp); } -static ssize_t show_temp_lowest(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct tmp401_data *data = tmp401_update_device(dev); - - return sprintf(buf, "%d\n", - tmp401_register_to_temp(data->temp_lowest[index], - data->config)); -} - -static ssize_t show_temp_highest(struct device *dev, - struct device_attribute *devattr, char *buf) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct tmp401_data *data = tmp401_update_device(dev); - - return sprintf(buf, "%d\n", - tmp401_register_to_temp(data->temp_highest[index], - data->config)); -} - static ssize_t show_status(struct device *dev, struct device_attribute *devattr, char *buf) { - int mask = to_sensor_dev_attr(devattr)->index; - struct tmp401_data *data = tmp401_update_device(dev); - - if (data->status & mask) - return sprintf(buf, "1\n"); - else - return sprintf(buf, "0\n"); -} - -static ssize_t store_temp_min(struct device *dev, struct device_attribute - *devattr, const char *buf, size_t count) -{ - int index = to_sensor_dev_attr(devattr)->index; + int nr = to_sensor_dev_attr_2(devattr)->nr; + int mask = to_sensor_dev_attr_2(devattr)->index; struct tmp401_data *data = tmp401_update_device(dev); - long val; - u16 reg; - - if (kstrtol(buf, 10, &val)) - return -EINVAL; - - reg = tmp401_temp_to_register(val, data->config); - - mutex_lock(&data->update_lock); - - i2c_smbus_write_byte_data(to_i2c_client(dev), - TMP401_TEMP_LOW_LIMIT_MSB_WRITE[index], reg >> 8); - i2c_smbus_write_byte_data(to_i2c_client(dev), - TMP401_TEMP_LOW_LIMIT_LSB[index], reg & 0xFF); - - data->temp_low[index] = reg; - mutex_unlock(&data->update_lock); + if (IS_ERR(data)) + return PTR_ERR(data); - return count; + return sprintf(buf, "%d\n", !!(data->status[nr] & mask)); } -static ssize_t store_temp_max(struct device *dev, struct device_attribute - *devattr, const char *buf, size_t count) +static ssize_t store_temp(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) { - int index = to_sensor_dev_attr(devattr)->index; + int nr = to_sensor_dev_attr_2(devattr)->nr; + int index = to_sensor_dev_attr_2(devattr)->index; + struct i2c_client *client = to_i2c_client(dev); struct tmp401_data *data = tmp401_update_device(dev); long val; u16 reg; + u8 regaddr; - if (kstrtol(buf, 10, &val)) - return -EINVAL; - - reg = tmp401_temp_to_register(val, data->config); - - mutex_lock(&data->update_lock); - - i2c_smbus_write_byte_data(to_i2c_client(dev), - TMP401_TEMP_HIGH_LIMIT_MSB_WRITE[index], reg >> 8); - i2c_smbus_write_byte_data(to_i2c_client(dev), - TMP401_TEMP_HIGH_LIMIT_LSB[index], reg & 0xFF); - - data->temp_high[index] = reg; - - mutex_unlock(&data->update_lock); - - return count; -} - -static ssize_t store_temp_crit(struct device *dev, struct device_attribute - *devattr, const char *buf, size_t count) -{ - int index = to_sensor_dev_attr(devattr)->index; - struct tmp401_data *data = tmp401_update_device(dev); - long val; - u8 reg; + if (IS_ERR(data)) + return PTR_ERR(data); if (kstrtol(buf, 10, &val)) return -EINVAL; - reg = tmp401_crit_temp_to_register(val, data->config); + reg = tmp401_temp_to_register(val, data->config, nr == 3 ? 8 : 4); mutex_lock(&data->update_lock); - i2c_smbus_write_byte_data(to_i2c_client(dev), - TMP401_TEMP_CRIT_LIMIT[index], reg); - - data->temp_crit[index] = reg; + regaddr = data->kind == tmp432 ? TMP432_TEMP_MSB_WRITE[nr][index] + : TMP401_TEMP_MSB_WRITE[nr][index]; + i2c_smbus_write_byte_data(client, regaddr, reg >> 8); + if (nr != 3) { + regaddr = data->kind == tmp432 ? TMP432_TEMP_LSB[nr][index] + : TMP401_TEMP_LSB[nr][index]; + i2c_smbus_write_byte_data(client, regaddr, reg & 0xFF); + } + data->temp[nr][index] = reg; mutex_unlock(&data->update_lock); @@ -413,6 +389,9 @@ static ssize_t store_temp_crit_hyst(struct device *dev, struct device_attribute long val; u8 reg; + if (IS_ERR(data)) + return PTR_ERR(data); + if (kstrtol(buf, 10, &val)) return -EINVAL; @@ -422,13 +401,12 @@ static ssize_t store_temp_crit_hyst(struct device *dev, struct device_attribute val = clamp_val(val, 0, 127000); mutex_lock(&data->update_lock); - temp = tmp401_crit_register_to_temp(data->temp_crit[index], - data->config); + temp = tmp401_register_to_temp(data->temp[3][index], data->config); val = clamp_val(val, temp - 255000, temp); reg = ((temp - val) + 500) / 1000; - i2c_smbus_write_byte_data(to_i2c_client(dev), - TMP401_TEMP_CRIT_HYST, reg); + i2c_smbus_write_byte_data(to_i2c_client(dev), TMP401_TEMP_CRIT_HYST, + reg); data->temp_crit_hyst = reg; @@ -445,54 +423,130 @@ static ssize_t store_temp_crit_hyst(struct device *dev, struct device_attribute static ssize_t reset_temp_history(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { + struct i2c_client *client = to_i2c_client(dev); + struct tmp401_data *data = i2c_get_clientdata(client); long val; if (kstrtol(buf, 10, &val)) return -EINVAL; if (val != 1) { - dev_err(dev, "temp_reset_history value %ld not" - " supported. Use 1 to reset the history!\n", val); + dev_err(dev, + "temp_reset_history value %ld not supported. Use 1 to reset the history!\n", + val); return -EINVAL; } - i2c_smbus_write_byte_data(to_i2c_client(dev), - TMP411_TEMP_LOWEST_MSB[0], val); + mutex_lock(&data->update_lock); + i2c_smbus_write_byte_data(client, TMP401_TEMP_MSB_WRITE[5][0], val); + data->valid = 0; + mutex_unlock(&data->update_lock); + + return count; +} + +static ssize_t show_update_interval(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct i2c_client *client = to_i2c_client(dev); + struct tmp401_data *data = i2c_get_clientdata(client); + + return sprintf(buf, "%u\n", data->update_interval); +} + +static ssize_t set_update_interval(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct i2c_client *client = to_i2c_client(dev); + struct tmp401_data *data = i2c_get_clientdata(client); + unsigned long val; + int err, rate; + + err = kstrtoul(buf, 10, &val); + if (err) + return err; + + /* + * For valid rates, interval can be calculated as + * interval = (1 << (7 - rate)) * 125; + * Rounded rate is therefore + * rate = 7 - __fls(interval * 4 / (125 * 3)); + * Use clamp_val() to avoid overflows, and to ensure valid input + * for __fls. + */ + val = clamp_val(val, 125, 16000); + rate = 7 - __fls(val * 4 / (125 * 3)); + mutex_lock(&data->update_lock); + i2c_smbus_write_byte_data(client, TMP401_CONVERSION_RATE_WRITE, rate); + data->update_interval = (1 << (7 - rate)) * 125; + mutex_unlock(&data->update_lock); return count; } -static struct sensor_device_attribute tmp401_attr[] = { - SENSOR_ATTR(temp1_input, S_IRUGO, show_temp_value, NULL, 0), - SENSOR_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min, - store_temp_min, 0), - SENSOR_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, - store_temp_max, 0), - SENSOR_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp_crit, - store_temp_crit, 0), - SENSOR_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temp_crit_hyst, - store_temp_crit_hyst, 0), - SENSOR_ATTR(temp1_min_alarm, S_IRUGO, show_status, NULL, - TMP401_STATUS_LOCAL_LOW), - SENSOR_ATTR(temp1_max_alarm, S_IRUGO, show_status, NULL, - TMP401_STATUS_LOCAL_HIGH), - SENSOR_ATTR(temp1_crit_alarm, S_IRUGO, show_status, NULL, - TMP401_STATUS_LOCAL_CRIT), - SENSOR_ATTR(temp2_input, S_IRUGO, show_temp_value, NULL, 1), - SENSOR_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min, - store_temp_min, 1), - SENSOR_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max, - store_temp_max, 1), - SENSOR_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp_crit, - store_temp_crit, 1), - SENSOR_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, NULL, 1), - SENSOR_ATTR(temp2_fault, S_IRUGO, show_status, NULL, - TMP401_STATUS_REMOTE_OPEN), - SENSOR_ATTR(temp2_min_alarm, S_IRUGO, show_status, NULL, - TMP401_STATUS_REMOTE_LOW), - SENSOR_ATTR(temp2_max_alarm, S_IRUGO, show_status, NULL, - TMP401_STATUS_REMOTE_HIGH), - SENSOR_ATTR(temp2_crit_alarm, S_IRUGO, show_status, NULL, - TMP401_STATUS_REMOTE_CRIT), +static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0); +static SENSOR_DEVICE_ATTR_2(temp1_min, S_IWUSR | S_IRUGO, show_temp, + store_temp, 1, 0); +static SENSOR_DEVICE_ATTR_2(temp1_max, S_IWUSR | S_IRUGO, show_temp, + store_temp, 2, 0); +static SENSOR_DEVICE_ATTR_2(temp1_crit, S_IWUSR | S_IRUGO, show_temp, + store_temp, 3, 0); +static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, + show_temp_crit_hyst, store_temp_crit_hyst, 0); +static SENSOR_DEVICE_ATTR_2(temp1_min_alarm, S_IRUGO, show_status, NULL, + 1, TMP432_STATUS_LOCAL); +static SENSOR_DEVICE_ATTR_2(temp1_max_alarm, S_IRUGO, show_status, NULL, + 2, TMP432_STATUS_LOCAL); +static SENSOR_DEVICE_ATTR_2(temp1_crit_alarm, S_IRUGO, show_status, NULL, + 3, TMP432_STATUS_LOCAL); +static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 1); +static SENSOR_DEVICE_ATTR_2(temp2_min, S_IWUSR | S_IRUGO, show_temp, + store_temp, 1, 1); +static SENSOR_DEVICE_ATTR_2(temp2_max, S_IWUSR | S_IRUGO, show_temp, + store_temp, 2, 1); +static SENSOR_DEVICE_ATTR_2(temp2_crit, S_IWUSR | S_IRUGO, show_temp, + store_temp, 3, 1); +static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_temp_crit_hyst, + NULL, 1); +static SENSOR_DEVICE_ATTR_2(temp2_fault, S_IRUGO, show_status, NULL, + 0, TMP432_STATUS_REMOTE1); +static SENSOR_DEVICE_ATTR_2(temp2_min_alarm, S_IRUGO, show_status, NULL, + 1, TMP432_STATUS_REMOTE1); +static SENSOR_DEVICE_ATTR_2(temp2_max_alarm, S_IRUGO, show_status, NULL, + 2, TMP432_STATUS_REMOTE1); +static SENSOR_DEVICE_ATTR_2(temp2_crit_alarm, S_IRUGO, show_status, NULL, + 3, TMP432_STATUS_REMOTE1); + +static DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR, show_update_interval, + set_update_interval); + +static struct attribute *tmp401_attributes[] = { + &sensor_dev_attr_temp1_input.dev_attr.attr, + &sensor_dev_attr_temp1_min.dev_attr.attr, + &sensor_dev_attr_temp1_max.dev_attr.attr, + &sensor_dev_attr_temp1_crit.dev_attr.attr, + &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, + &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp1_crit_alarm.dev_attr.attr, + + &sensor_dev_attr_temp2_input.dev_attr.attr, + &sensor_dev_attr_temp2_min.dev_attr.attr, + &sensor_dev_attr_temp2_max.dev_attr.attr, + &sensor_dev_attr_temp2_crit.dev_attr.attr, + &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr, + &sensor_dev_attr_temp2_fault.dev_attr.attr, + &sensor_dev_attr_temp2_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp2_crit_alarm.dev_attr.attr, + + &dev_attr_update_interval.attr, + + NULL +}; + +static const struct attribute_group tmp401_group = { + .attrs = tmp401_attributes, }; /* @@ -502,12 +556,60 @@ static struct sensor_device_attribute tmp401_attr[] = { * minimum and maximum register reset for both the local * and remote channels. */ -static struct sensor_device_attribute tmp411_attr[] = { - SENSOR_ATTR(temp1_highest, S_IRUGO, show_temp_highest, NULL, 0), - SENSOR_ATTR(temp1_lowest, S_IRUGO, show_temp_lowest, NULL, 0), - SENSOR_ATTR(temp2_highest, S_IRUGO, show_temp_highest, NULL, 1), - SENSOR_ATTR(temp2_lowest, S_IRUGO, show_temp_lowest, NULL, 1), - SENSOR_ATTR(temp_reset_history, S_IWUSR, NULL, reset_temp_history, 0), +static SENSOR_DEVICE_ATTR_2(temp1_lowest, S_IRUGO, show_temp, NULL, 4, 0); +static SENSOR_DEVICE_ATTR_2(temp1_highest, S_IRUGO, show_temp, NULL, 5, 0); +static SENSOR_DEVICE_ATTR_2(temp2_lowest, S_IRUGO, show_temp, NULL, 4, 1); +static SENSOR_DEVICE_ATTR_2(temp2_highest, S_IRUGO, show_temp, NULL, 5, 1); +static SENSOR_DEVICE_ATTR(temp_reset_history, S_IWUSR, NULL, reset_temp_history, + 0); + +static struct attribute *tmp411_attributes[] = { + &sensor_dev_attr_temp1_highest.dev_attr.attr, + &sensor_dev_attr_temp1_lowest.dev_attr.attr, + &sensor_dev_attr_temp2_highest.dev_attr.attr, + &sensor_dev_attr_temp2_lowest.dev_attr.attr, + &sensor_dev_attr_temp_reset_history.dev_attr.attr, + NULL +}; + +static const struct attribute_group tmp411_group = { + .attrs = tmp411_attributes, +}; + +static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 0, 2); +static SENSOR_DEVICE_ATTR_2(temp3_min, S_IWUSR | S_IRUGO, show_temp, + store_temp, 1, 2); +static SENSOR_DEVICE_ATTR_2(temp3_max, S_IWUSR | S_IRUGO, show_temp, + store_temp, 2, 2); +static SENSOR_DEVICE_ATTR_2(temp3_crit, S_IWUSR | S_IRUGO, show_temp, + store_temp, 3, 2); +static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO, show_temp_crit_hyst, + NULL, 2); +static SENSOR_DEVICE_ATTR_2(temp3_fault, S_IRUGO, show_status, NULL, + 0, TMP432_STATUS_REMOTE2); +static SENSOR_DEVICE_ATTR_2(temp3_min_alarm, S_IRUGO, show_status, NULL, + 1, TMP432_STATUS_REMOTE2); +static SENSOR_DEVICE_ATTR_2(temp3_max_alarm, S_IRUGO, show_status, NULL, + 2, TMP432_STATUS_REMOTE2); +static SENSOR_DEVICE_ATTR_2(temp3_crit_alarm, S_IRUGO, show_status, NULL, + 3, TMP432_STATUS_REMOTE2); + +static struct attribute *tmp432_attributes[] = { + &sensor_dev_attr_temp3_input.dev_attr.attr, + &sensor_dev_attr_temp3_min.dev_attr.attr, + &sensor_dev_attr_temp3_max.dev_attr.attr, + &sensor_dev_attr_temp3_crit.dev_attr.attr, + &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr, + &sensor_dev_attr_temp3_fault.dev_attr.attr, + &sensor_dev_attr_temp3_max_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_min_alarm.dev_attr.attr, + &sensor_dev_attr_temp3_crit_alarm.dev_attr.attr, + + NULL +}; + +static const struct attribute_group tmp432_group = { + .attrs = tmp432_attributes, }; /* @@ -517,9 +619,11 @@ static struct sensor_device_attribute tmp411_attr[] = { static void tmp401_init_client(struct i2c_client *client) { int config, config_orig; + struct tmp401_data *data = i2c_get_clientdata(client); /* Set the conversion rate to 2 Hz */ i2c_smbus_write_byte_data(client, TMP401_CONVERSION_RATE_WRITE, 5); + data->update_interval = 500; /* Start conversions (disable shutdown if necessary) */ config = i2c_smbus_read_byte_data(client, TMP401_CONFIG_READ); @@ -554,11 +658,35 @@ static int tmp401_detect(struct i2c_client *client, switch (reg) { case TMP401_DEVICE_ID: + if (client->addr != 0x4c) + return -ENODEV; kind = tmp401; break; - case TMP411_DEVICE_ID: + case TMP411A_DEVICE_ID: + if (client->addr != 0x4c) + return -ENODEV; + kind = tmp411; + break; + case TMP411B_DEVICE_ID: + if (client->addr != 0x4d) + return -ENODEV; kind = tmp411; break; + case TMP411C_DEVICE_ID: + if (client->addr != 0x4e) + return -ENODEV; + kind = tmp411; + break; + case TMP431_DEVICE_ID: + if (client->addr == 0x4e) + return -ENODEV; + kind = tmp431; + break; + case TMP432_DEVICE_ID: + if (client->addr == 0x4e) + return -ENODEV; + kind = tmp432; + break; default: return -ENODEV; } @@ -579,20 +707,19 @@ static int tmp401_detect(struct i2c_client *client, static int tmp401_remove(struct i2c_client *client) { + struct device *dev = &client->dev; struct tmp401_data *data = i2c_get_clientdata(client); - int i; if (data->hwmon_dev) hwmon_device_unregister(data->hwmon_dev); - for (i = 0; i < ARRAY_SIZE(tmp401_attr); i++) - device_remove_file(&client->dev, &tmp401_attr[i].dev_attr); + sysfs_remove_group(&dev->kobj, &tmp401_group); - if (data->kind == tmp411) { - for (i = 0; i < ARRAY_SIZE(tmp411_attr); i++) - device_remove_file(&client->dev, - &tmp411_attr[i].dev_attr); - } + if (data->kind == tmp411) + sysfs_remove_group(&dev->kobj, &tmp411_group); + + if (data->kind == tmp432) + sysfs_remove_group(&dev->kobj, &tmp432_group); return 0; } @@ -600,12 +727,12 @@ static int tmp401_remove(struct i2c_client *client) static int tmp401_probe(struct i2c_client *client, const struct i2c_device_id *id) { - int i, err = 0; + struct device *dev = &client->dev; + int err; struct tmp401_data *data; - const char *names[] = { "TMP401", "TMP411" }; + const char *names[] = { "TMP401", "TMP411", "TMP431", "TMP432" }; - data = devm_kzalloc(&client->dev, sizeof(struct tmp401_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct tmp401_data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -617,31 +744,32 @@ static int tmp401_probe(struct i2c_client *client, tmp401_init_client(client); /* Register sysfs hooks */ - for (i = 0; i < ARRAY_SIZE(tmp401_attr); i++) { - err = device_create_file(&client->dev, - &tmp401_attr[i].dev_attr); + err = sysfs_create_group(&dev->kobj, &tmp401_group); + if (err) + return err; + + /* Register additional tmp411 sysfs hooks */ + if (data->kind == tmp411) { + err = sysfs_create_group(&dev->kobj, &tmp411_group); if (err) goto exit_remove; } - /* Register additional tmp411 sysfs hooks */ - if (data->kind == tmp411) { - for (i = 0; i < ARRAY_SIZE(tmp411_attr); i++) { - err = device_create_file(&client->dev, - &tmp411_attr[i].dev_attr); - if (err) - goto exit_remove; - } + /* Register additional tmp432 sysfs hooks */ + if (data->kind == tmp432) { + err = sysfs_create_group(&dev->kobj, &tmp432_group); + if (err) + goto exit_remove; } - data->hwmon_dev = hwmon_device_register(&client->dev); + data->hwmon_dev = hwmon_device_register(dev); if (IS_ERR(data->hwmon_dev)) { err = PTR_ERR(data->hwmon_dev); data->hwmon_dev = NULL; goto exit_remove; } - dev_info(&client->dev, "Detected TI %s chip\n", names[data->kind]); + dev_info(dev, "Detected TI %s chip\n", names[data->kind]); return 0; diff --git a/drivers/hwmon/tmp421.c b/drivers/hwmon/tmp421.c index 6a8ded29f1e..964c1d68827 100644 --- a/drivers/hwmon/tmp421.c +++ b/drivers/hwmon/tmp421.c @@ -208,8 +208,8 @@ static int tmp421_init_client(struct i2c_client *client) /* Start conversions (disable shutdown if necessary) */ config = i2c_smbus_read_byte_data(client, TMP421_CONFIG_REG_1); if (config < 0) { - dev_err(&client->dev, "Could not read configuration" - " register (%d)\n", config); + dev_err(&client->dev, + "Could not read configuration register (%d)\n", config); return -ENODEV; } @@ -322,6 +322,5 @@ static struct i2c_driver tmp421_driver = { module_i2c_driver(tmp421_driver); MODULE_AUTHOR("Andre Prendel <andre.prendel@gmx.de>"); -MODULE_DESCRIPTION("Texas Instruments TMP421/422/423 temperature sensor" - " driver"); +MODULE_DESCRIPTION("Texas Instruments TMP421/422/423 temperature sensor driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/via686a.c b/drivers/hwmon/via686a.c index 3123b30208c..c9dcce8c3dc 100644 --- a/drivers/hwmon/via686a.c +++ b/drivers/hwmon/via686a.c @@ -125,7 +125,7 @@ static const u8 VIA686A_REG_TEMP_HYST[] = { 0x3a, 0x3e, 0x1e }; * (These conversions were contributed by Jonathan Teh Soon Yew * <j.teh@iname.com>) */ -static inline u8 IN_TO_REG(long val, int inNum) +static inline u8 IN_TO_REG(long val, int in_num) { /* * To avoid floating point, we multiply constants by 10 (100 for +12V). @@ -134,29 +134,29 @@ static inline u8 IN_TO_REG(long val, int inNum) * by an additional 10000 (100000 for +12V): 1000 for val and 10 (100) * for the constants. */ - if (inNum <= 1) + if (in_num <= 1) return (u8) clamp_val((val * 21024 - 1205000) / 250000, 0, 255); - else if (inNum == 2) + else if (in_num == 2) return (u8) clamp_val((val * 15737 - 1205000) / 250000, 0, 255); - else if (inNum == 3) + else if (in_num == 3) return (u8) clamp_val((val * 10108 - 1205000) / 250000, 0, 255); else return (u8) clamp_val((val * 41714 - 12050000) / 2500000, 0, 255); } -static inline long IN_FROM_REG(u8 val, int inNum) +static inline long IN_FROM_REG(u8 val, int in_num) { /* * To avoid floating point, we multiply constants by 10 (100 for +12V). * We also multiply them by 1000 because we want 0.001V/bit for the * output value. Rounding is done. */ - if (inNum <= 1) + if (in_num <= 1) return (long) ((250000 * val + 1330000 + 21024 / 2) / 21024); - else if (inNum == 2) + else if (in_num == 2) return (long) ((250000 * val + 1330000 + 15737 / 2) / 15737); - else if (inNum == 3) + else if (in_num == 3) return (long) ((250000 * val + 1330000 + 10108 / 2) / 10108); else return (long) ((2500000 * val + 13300000 + 41714 / 2) / 41714); @@ -210,10 +210,10 @@ static inline u8 FAN_TO_REG(long rpm, int div) * VIA register values 0-255. I *10 before rounding, so we get tenth-degree * precision. (I could have done all 1024 values for our 10-bit readings, * but the function is very linear in the useful range (0-80 deg C), so - * we'll just use linear interpolation for 10-bit readings.) So, tempLUT + * we'll just use linear interpolation for 10-bit readings.) So, temp_lut * is the temp at via register values 0-255: */ -static const s16 tempLUT[] = { +static const s16 temp_lut[] = { -709, -688, -667, -646, -627, -607, -589, -570, -553, -536, -519, -503, -487, -471, -456, -442, -428, -414, -400, -387, -375, -362, -350, -339, -327, -316, -305, -295, -285, -275, -265, @@ -261,7 +261,7 @@ static const s16 tempLUT[] = { * - 2.525453e-04*val^3 + 1.424593e-02*val^2 + 2.148941e+00*val +7.275808e+01) * Note that n=161: */ -static const u8 viaLUT[] = { +static const u8 via_lut[] = { 12, 12, 13, 14, 14, 15, 16, 16, 17, 18, 18, 19, 20, 20, 21, 22, 23, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 35, 36, 37, 39, 40, 41, 43, 45, 46, 48, 49, 51, 53, 55, 57, 59, 60, 62, 64, 66, @@ -284,26 +284,26 @@ static const u8 viaLUT[] = { */ static inline u8 TEMP_TO_REG(long val) { - return viaLUT[val <= -50000 ? 0 : val >= 110000 ? 160 : + return via_lut[val <= -50000 ? 0 : val >= 110000 ? 160 : (val < 0 ? val - 500 : val + 500) / 1000 + 50]; } /* for 8-bit temperature hyst and over registers */ -#define TEMP_FROM_REG(val) ((long)tempLUT[val] * 100) +#define TEMP_FROM_REG(val) ((long)temp_lut[val] * 100) /* for 10-bit temperature readings */ static inline long TEMP_FROM_REG10(u16 val) { - u16 eightBits = val >> 2; - u16 twoBits = val & 3; + u16 eight_bits = val >> 2; + u16 two_bits = val & 3; /* no interpolation for these */ - if (twoBits == 0 || eightBits == 255) - return TEMP_FROM_REG(eightBits); + if (two_bits == 0 || eight_bits == 255) + return TEMP_FROM_REG(eight_bits); /* do some linear interpolation */ - return (tempLUT[eightBits] * (4 - twoBits) + - tempLUT[eightBits + 1] * twoBits) * 25; + return (temp_lut[eight_bits] * (4 - two_bits) + + temp_lut[eight_bits + 1] * two_bits) * 25; } #define DIV_FROM_REG(val) (1 << (val)) @@ -889,8 +889,8 @@ static int via686a_pci_probe(struct pci_dev *dev, address = val & ~(VIA686A_EXTENT - 1); if (address == 0) { - dev_err(&dev->dev, "base address not set - upgrade BIOS " - "or use force_addr=0xaddr\n"); + dev_err(&dev->dev, + "base address not set - upgrade BIOS or use force_addr=0xaddr\n"); return -ENODEV; } @@ -899,8 +899,9 @@ static int via686a_pci_probe(struct pci_dev *dev, return -ENODEV; if (!(val & 0x0001)) { if (!force_addr) { - dev_warn(&dev->dev, "Sensors disabled, enable " - "with force_addr=0x%x\n", address); + dev_warn(&dev->dev, + "Sensors disabled, enable with force_addr=0x%x\n", + address); return -ENODEV; } diff --git a/drivers/hwmon/vt1211.c b/drivers/hwmon/vt1211.c index dcc62f80f67..6b2f1a42b3f 100644 --- a/drivers/hwmon/vt1211.c +++ b/drivers/hwmon/vt1211.c @@ -571,8 +571,9 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *attr, break; default: count = -EINVAL; - dev_warn(dev, "fan div value %ld not supported. " - "Choose one of 1, 2, 4, or 8.\n", val); + dev_warn(dev, + "fan div value %ld not supported. Choose one of 1, 2, 4, or 8.\n", + val); goto EXIT; } vt1211_write8(data, VT1211_REG_FAN_DIV, @@ -674,8 +675,9 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, break; default: count = -EINVAL; - dev_warn(dev, "pwm mode %ld not supported. " - "Choose one of 0 or 2.\n", val); + dev_warn(dev, + "pwm mode %ld not supported. Choose one of 0 or 2.\n", + val); goto EXIT; } vt1211_write8(data, VT1211_REG_PWM_CTL, @@ -700,8 +702,9 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, case SHOW_SET_PWM_AUTO_CHANNELS_TEMP: if (val < 1 || val > 7) { count = -EINVAL; - dev_warn(dev, "temp channel %ld not supported. " - "Choose a value between 1 and 7.\n", val); + dev_warn(dev, + "temp channel %ld not supported. Choose a value between 1 and 7.\n", + val); goto EXIT; } if (!ISTEMP(val - 1, data->uch_config)) { @@ -1325,15 +1328,15 @@ static int __init vt1211_init(void) if ((uch_config < -1) || (uch_config > 31)) { err = -EINVAL; - pr_warn("Invalid UCH configuration %d. " - "Choose a value between 0 and 31.\n", uch_config); + pr_warn("Invalid UCH configuration %d. Choose a value between 0 and 31.\n", + uch_config); goto EXIT; } if ((int_mode < -1) || (int_mode > 0)) { err = -EINVAL; - pr_warn("Invalid interrupt mode %d. " - "Only mode 0 is supported.\n", int_mode); + pr_warn("Invalid interrupt mode %d. Only mode 0 is supported.\n", + int_mode); goto EXIT; } diff --git a/drivers/hwmon/vt8231.c b/drivers/hwmon/vt8231.c index 988a2a79676..0e7017841f7 100644 --- a/drivers/hwmon/vt8231.c +++ b/drivers/hwmon/vt8231.c @@ -573,8 +573,9 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, data->fan_div[nr] = 3; break; default: - dev_err(dev, "fan_div value %ld not supported. " - "Choose one of 1, 2, 4 or 8!\n", val); + dev_err(dev, + "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", + val); mutex_unlock(&data->update_lock); return -EINVAL; } diff --git a/drivers/hwmon/w83627ehf.c b/drivers/hwmon/w83627ehf.c index 0a89211c25f..016027229e8 100644 --- a/drivers/hwmon/w83627ehf.c +++ b/drivers/hwmon/w83627ehf.c @@ -840,8 +840,8 @@ static struct w83627ehf_data *w83627ehf_update_device(struct device *dev) && (reg >= 0xff || (sio_data->kind == nct6775 && reg == 0x00)) && data->fan_div[i] < 0x07) { - dev_dbg(dev, "Increasing fan%d " - "clock divider from %u to %u\n", + dev_dbg(dev, + "Increasing fan%d clock divider from %u to %u\n", i + 1, div_from_reg(data->fan_div[i]), div_from_reg(data->fan_div[i] + 1)); data->fan_div[i]++; @@ -1110,9 +1110,9 @@ store_fan_min(struct device *dev, struct device_attribute *attr, */ data->fan_min[nr] = 254; new_div = 7; /* 128 == (1 << 7) */ - dev_warn(dev, "fan%u low limit %lu below minimum %u, set to " - "minimum\n", nr + 1, val, - data->fan_from_reg_min(254, 7)); + dev_warn(dev, + "fan%u low limit %lu below minimum %u, set to minimum\n", + nr + 1, val, data->fan_from_reg_min(254, 7)); } else if (!reg) { /* * Speed above this value cannot possibly be represented, @@ -1120,9 +1120,9 @@ store_fan_min(struct device *dev, struct device_attribute *attr, */ data->fan_min[nr] = 1; new_div = 0; /* 1 == (1 << 0) */ - dev_warn(dev, "fan%u low limit %lu above maximum %u, set to " - "maximum\n", nr + 1, val, - data->fan_from_reg_min(1, 0)); + dev_warn(dev, + "fan%u low limit %lu above maximum %u, set to maximum\n", + nr + 1, val, data->fan_from_reg_min(1, 0)); } else { /* * Automatically pick the best divider, i.e. the one such @@ -2396,15 +2396,15 @@ static int w83627ehf_probe(struct platform_device *pdev) en_vrm10 = superio_inb(sio_data->sioreg, SIO_REG_EN_VRM10); if ((en_vrm10 & 0x08) && data->vrm == 90) { - dev_warn(dev, "Setting VID input " - "voltage to TTL\n"); + dev_warn(dev, + "Setting VID input voltage to TTL\n"); superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10, en_vrm10 & ~0x08); } else if (!(en_vrm10 & 0x08) && data->vrm == 100) { - dev_warn(dev, "Setting VID input " - "voltage to VRM10\n"); + dev_warn(dev, + "Setting VID input voltage to VRM10\n"); superio_outb(sio_data->sioreg, SIO_REG_EN_VRM10, en_vrm10 | 0x08); @@ -2420,8 +2420,8 @@ static int w83627ehf_probe(struct platform_device *pdev) if (err) goto exit_release; } else { - dev_info(dev, "VID pins in output mode, CPU VID not " - "available\n"); + dev_info(dev, + "VID pins in output mode, CPU VID not available\n"); } } @@ -2795,8 +2795,7 @@ static int __init w83627ehf_find(int sioaddr, unsigned short *addr, /* Activate logical device if needed */ val = superio_inb(sioaddr, SIO_REG_ENABLE); if (!(val & 0x01)) { - pr_warn("Forcibly enabling Super-I/O. " - "Sensor is probably unusable.\n"); + pr_warn("Forcibly enabling Super-I/O. Sensor is probably unusable.\n"); superio_outb(sioaddr, SIO_REG_ENABLE, val | 0x01); } diff --git a/drivers/hwmon/w83781d.c b/drivers/hwmon/w83781d.c index aeec5b1d81c..f9d513949a3 100644 --- a/drivers/hwmon/w83781d.c +++ b/drivers/hwmon/w83781d.c @@ -64,8 +64,8 @@ enum chips { w83781d, w83782d, w83783s, as99127f }; /* Insmod parameters */ static unsigned short force_subclients[4]; module_param_array(force_subclients, short, NULL, 0); -MODULE_PARM_DESC(force_subclients, "List of subclient addresses: " - "{bus, clientaddr, subclientaddr1, subclientaddr2}"); +MODULE_PARM_DESC(force_subclients, + "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}"); static bool reset; module_param(reset, bool, 0); @@ -826,8 +826,9 @@ store_sensor(struct device *dev, struct device_attribute *da, data->sens[nr] = val; break; case W83781D_DEFAULT_BETA: - dev_warn(dev, "Sensor type %d is deprecated, please use 4 " - "instead\n", W83781D_DEFAULT_BETA); + dev_warn(dev, + "Sensor type %d is deprecated, please use 4 instead\n", + W83781D_DEFAULT_BETA); /* fall through */ case 4: /* thermistor */ tmp = w83781d_read_value(data, W83781D_REG_SCFG1); @@ -874,8 +875,8 @@ w83781d_detect_subclients(struct i2c_client *new_client) for (i = 2; i <= 3; i++) { if (force_subclients[i] < 0x48 || force_subclients[i] > 0x4f) { - dev_err(&new_client->dev, "Invalid subclient " - "address %d; must be 0x48-0x4f\n", + dev_err(&new_client->dev, + "Invalid subclient address %d; must be 0x48-0x4f\n", force_subclients[i]); err = -EINVAL; goto ERROR_SC_1; @@ -910,9 +911,9 @@ w83781d_detect_subclients(struct i2c_client *new_client) for (i = 0; i < num_sc; i++) { data->lm75[i] = i2c_new_dummy(adapter, sc_addr[i]); if (!data->lm75[i]) { - dev_err(&new_client->dev, "Subclient %d " - "registration at address 0x%x " - "failed.\n", i, sc_addr[i]); + dev_err(&new_client->dev, + "Subclient %d registration at address 0x%x failed.\n", + i, sc_addr[i]); err = -ENOMEM; if (i == 1) goto ERROR_SC_3; @@ -1176,8 +1177,9 @@ w83781d_detect(struct i2c_client *client, struct i2c_board_info *info) goto err_nodev; if (val1 <= 0x30 && w83781d_alias_detect(client, val1)) { - dev_dbg(&adapter->dev, "Device at 0x%02x appears to " - "be the same as ISA device\n", address); + dev_dbg(&adapter->dev, + "Device at 0x%02x appears to be the same as ISA device\n", + address); goto err_nodev; } @@ -1367,8 +1369,8 @@ w83781d_init_device(struct device *dev) * as I see very little reason why this would be needed at * all. */ - dev_info(dev, "If reset=1 solved a problem you were " - "having, please report!\n"); + dev_info(dev, + "If reset=1 solved a problem you were having, please report!\n"); /* save these registers */ i = w83781d_read_value(data, W83781D_REG_BEEP_CONFIG); @@ -1425,8 +1427,8 @@ w83781d_init_device(struct device *dev) /* Enable temp2 */ tmp = w83781d_read_value(data, W83781D_REG_TEMP2_CONFIG); if (tmp & 0x01) { - dev_warn(dev, "Enabling temp2, readings " - "might not make sense\n"); + dev_warn(dev, + "Enabling temp2, readings might not make sense\n"); w83781d_write_value(data, W83781D_REG_TEMP2_CONFIG, tmp & 0xfe); } @@ -1436,8 +1438,8 @@ w83781d_init_device(struct device *dev) tmp = w83781d_read_value(data, W83781D_REG_TEMP3_CONFIG); if (tmp & 0x01) { - dev_warn(dev, "Enabling temp3, " - "readings might not make sense\n"); + dev_warn(dev, + "Enabling temp3, readings might not make sense\n"); w83781d_write_value(data, W83781D_REG_TEMP3_CONFIG, tmp & 0xfe); } diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c index 38dddddf887..a3feee332e2 100644 --- a/drivers/hwmon/w83791d.c +++ b/drivers/hwmon/w83791d.c @@ -56,8 +56,8 @@ static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, static unsigned short force_subclients[4]; module_param_array(force_subclients, short, NULL, 0); -MODULE_PARM_DESC(force_subclients, "List of subclient addresses: " - "{bus, clientaddr, subclientaddr1, subclientaddr2}"); +MODULE_PARM_DESC(force_subclients, + "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}"); static bool reset; module_param(reset, bool, 0); diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c index 5cb83ddf2cc..0b804895be4 100644 --- a/drivers/hwmon/w83792d.c +++ b/drivers/hwmon/w83792d.c @@ -54,8 +54,8 @@ static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, static unsigned short force_subclients[4]; module_param_array(force_subclients, short, NULL, 0); -MODULE_PARM_DESC(force_subclients, "List of subclient addresses: " - "{bus, clientaddr, subclientaddr1, subclientaddr2}"); +MODULE_PARM_DESC(force_subclients, + "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}"); static bool init; module_param(init, bool, 0); @@ -951,8 +951,8 @@ w83792d_detect_subclients(struct i2c_client *new_client) for (i = 2; i <= 3; i++) { if (force_subclients[i] < 0x48 || force_subclients[i] > 0x4f) { - dev_err(&new_client->dev, "invalid subclient " - "address %d; must be 0x48-0x4f\n", + dev_err(&new_client->dev, + "invalid subclient address %d; must be 0x48-0x4f\n", force_subclients[i]); err = -ENODEV; goto ERROR_SC_0; @@ -969,8 +969,9 @@ w83792d_detect_subclients(struct i2c_client *new_client) if (!(val & 0x80)) { if ((data->lm75[0] != NULL) && ((val & 0x7) == ((val >> 4) & 0x7))) { - dev_err(&new_client->dev, "duplicate addresses 0x%x, " - "use force_subclient\n", data->lm75[0]->addr); + dev_err(&new_client->dev, + "duplicate addresses 0x%x, use force_subclient\n", + data->lm75[0]->addr); err = -ENODEV; goto ERROR_SC_1; } diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c index 660427520c5..b0c30a546ff 100644 --- a/drivers/hwmon/w83793.c +++ b/drivers/hwmon/w83793.c @@ -59,8 +59,8 @@ static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, static unsigned short force_subclients[4]; module_param_array(force_subclients, short, NULL, 0); -MODULE_PARM_DESC(force_subclients, "List of subclient addresses: " - "{bus, clientaddr, subclientaddr1, subclientaddr2}"); +MODULE_PARM_DESC(force_subclients, + "List of subclient addresses: {bus, clientaddr, subclientaddr1, subclientaddr2}"); static bool reset; module_param(reset, bool, 0); @@ -1921,8 +1921,8 @@ static int w83793_probe(struct i2c_client *client, } if (i == ARRAY_SIZE(watchdog_minors)) { data->watchdog_miscdev.minor = 0; - dev_warn(&client->dev, "Couldn't register watchdog chardev " - "(due to no free minor)\n"); + dev_warn(&client->dev, + "Couldn't register watchdog chardev (due to no free minor)\n"); } mutex_unlock(&watchdog_data_mutex); diff --git a/drivers/hwmon/w83795.c b/drivers/hwmon/w83795.c index e226096148e..908209d2466 100644 --- a/drivers/hwmon/w83795.c +++ b/drivers/hwmon/w83795.c @@ -2120,11 +2120,12 @@ static void w83795_check_dynamic_in_limits(struct i2c_client *client) &w83795_in[i][3].dev_attr.attr, S_IRUGO); if (err_max || err_min) - dev_warn(&client->dev, "Failed to set in%d limits " - "read-only (%d, %d)\n", i, err_max, err_min); + dev_warn(&client->dev, + "Failed to set in%d limits read-only (%d, %d)\n", + i, err_max, err_min); else - dev_info(&client->dev, "in%d limits set dynamically " - "from VID\n", i); + dev_info(&client->dev, + "in%d limits set dynamically from VID\n", i); } } |