diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-15 09:46:23 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-10-15 09:46:23 -0700 |
| commit | ade7afe3e606f9f6ff0e6deefce140157f75540b (patch) | |
| tree | 14be1cde214ed46179c23c007cbdc2e98bc2a381 /drivers/iio | |
| parent | 3e4fb4346c781068610d03c12b16c0cfb0fd24a3 (diff) | |
| parent | e1f13c879a7c21bd207dc6242455e8e3a1e88b40 (diff) | |
Merge tag 'staging-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging / IIO driver updates from Greg KH:
"Here is the large set of staging and IIO driver updates for 5.10-rc1.
Included in here are:
- new IIO drivers
- new IIO driver frameworks
- various IIO driver fixes and updates
- IIO device tree conversions to yaml
- so many minor staging driver coding style cleanups
- most cdev driver moved out of staging
- no staging drivers added or removed
Full details are in the shortlog.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (476 commits)
staging: comedi: check validity of wMaxPacketSize of usb endpoints found
staging: wfx: improve robustness of wfx_get_hw_rate()
staging: wfx: drop unicode characters from strings
staging: wfx: gpiod_get_value() can return an error
staging: wfx: increase robustness of hif_generic_confirm()
staging: wfx: wfx_init_common() returns NULL on error
staging: wfx: standardize the error when vif does not exist
staging: wfx: check memory allocation
staging: wfx: improve error handling of hif_join()
staging: dpaa2-switch: add a dpaa2_switch prefix to all functions in ethsw.c
staging: dpaa2-switch: add a dpaa2_switch_ prefix to all functions in ethsw-ethtool.c
staging: rtl8188eu: Fix long lines
dt-bindings: staging: wfx: silabs,wfx yaml conversion
staging: wfx: update copyrights dates
staging: wfx: fix QoS priority for slow buses
staging: wfx: fix BA sessions for older firmwares
staging: wfx: remove remaining code of 'secure link' feature
staging: wfx: fix handling of MMIC error
staging: vchiq: Fix list_for_each exit tests
staging: greybus: use __force when assigning __u8 value to snd_ctl_elem_type_t
...
Diffstat (limited to 'drivers/iio')
137 files changed, 3833 insertions, 1481 deletions
diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig index d5c073a8aa3e..267553386c71 100644 --- a/drivers/iio/Kconfig +++ b/drivers/iio/Kconfig @@ -63,7 +63,7 @@ config IIO_SW_TRIGGER using the API provided. config IIO_TRIGGERED_EVENT - tristate + tristate "Enable triggered events support" select IIO_TRIGGER help Provides helper functions for setting up triggered events. diff --git a/drivers/iio/accel/adis16201.c b/drivers/iio/accel/adis16201.c index 59a24c355a1a..f955cccb3e77 100644 --- a/drivers/iio/accel/adis16201.c +++ b/drivers/iio/accel/adis16201.c @@ -281,34 +281,15 @@ static int adis16201_probe(struct spi_device *spi) if (ret) return ret; - ret = adis_setup_buffer_and_trigger(st, indio_dev, NULL); + ret = devm_adis_setup_buffer_and_trigger(st, indio_dev, NULL); if (ret) return ret; ret = adis_initial_startup(st); if (ret) - goto error_cleanup_buffer_trigger; - - ret = iio_device_register(indio_dev); - if (ret < 0) - goto error_cleanup_buffer_trigger; - - return 0; - -error_cleanup_buffer_trigger: - adis_cleanup_buffer_and_trigger(st, indio_dev); - return ret; -} - -static int adis16201_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct adis *st = iio_priv(indio_dev); - - iio_device_unregister(indio_dev); - adis_cleanup_buffer_and_trigger(st, indio_dev); + return ret; - return 0; + return devm_iio_device_register(&spi->dev, indio_dev); } static struct spi_driver adis16201_driver = { @@ -316,7 +297,6 @@ static struct spi_driver adis16201_driver = { .name = "adis16201", }, .probe = adis16201_probe, - .remove = adis16201_remove, }; module_spi_driver(adis16201_driver); diff --git a/drivers/iio/accel/adis16209.c b/drivers/iio/accel/adis16209.c index 3d5538e2f76e..4a841aec6268 100644 --- a/drivers/iio/accel/adis16209.c +++ b/drivers/iio/accel/adis16209.c @@ -291,33 +291,15 @@ static int adis16209_probe(struct spi_device *spi) if (ret) return ret; - ret = adis_setup_buffer_and_trigger(st, indio_dev, NULL); + ret = devm_adis_setup_buffer_and_trigger(st, indio_dev, NULL); if (ret) return ret; ret = adis_initial_startup(st); if (ret) - goto error_cleanup_buffer_trigger; - ret = iio_device_register(indio_dev); - if (ret) - goto error_cleanup_buffer_trigger; - - return 0; - -error_cleanup_buffer_trigger: - adis_cleanup_buffer_and_trigger(st, indio_dev); - return ret; -} - -static int adis16209_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct adis *st = iio_priv(indio_dev); - - iio_device_unregister(indio_dev); - adis_cleanup_buffer_and_trigger(st, indio_dev); + return ret; - return 0; + return devm_iio_device_register(&spi->dev, indio_dev); } static struct spi_driver adis16209_driver = { @@ -325,7 +307,6 @@ static struct spi_driver adis16209_driver = { .name = "adis16209", }, .probe = adis16209_probe, - .remove = adis16209_remove, }; module_spi_driver(adis16209_driver); diff --git a/drivers/iio/accel/adxl372.c b/drivers/iio/accel/adxl372.c index e7e316b75e87..aed2a4930fb0 100644 --- a/drivers/iio/accel/adxl372.c +++ b/drivers/iio/accel/adxl372.c @@ -5,6 +5,7 @@ * Copyright 2018 Analog Devices Inc. */ +#include <linux/bitfield.h> #include <linux/bitops.h> #include <linux/interrupt.h> #include <linux/irq.h> @@ -113,6 +114,11 @@ #define ADXL372_STATUS_1_AWAKE(x) (((x) >> 6) & 0x1) #define ADXL372_STATUS_1_ERR_USR_REGS(x) (((x) >> 7) & 0x1) +/* ADXL372_STATUS_2 */ +#define ADXL372_STATUS_2_INACT(x) (((x) >> 4) & 0x1) +#define ADXL372_STATUS_2_ACT(x) (((x) >> 5) & 0x1) +#define ADXL372_STATUS_2_AC2(x) (((x) >> 6) & 0x1) + /* ADXL372_INT1_MAP */ #define ADXL372_INT1_MAP_DATA_RDY_MSK BIT(0) #define ADXL372_INT1_MAP_DATA_RDY_MODE(x) (((x) & 0x1) << 0) @@ -131,8 +137,17 @@ #define ADXL372_INT1_MAP_LOW_MSK BIT(7) #define ADXL372_INT1_MAP_LOW_MODE(x) (((x) & 0x1) << 7) +/* ADX372_THRESH */ +#define ADXL372_THRESH_VAL_H_MSK GENMASK(10, 3) +#define ADXL372_THRESH_VAL_H_SEL(x) FIELD_GET(ADXL372_THRESH_VAL_H_MSK, x) +#define ADXL372_THRESH_VAL_L_MSK GENMASK(2, 0) +#define ADXL372_THRESH_VAL_L_SEL(x) FIELD_GET(ADXL372_THRESH_VAL_L_MSK, x) + /* The ADXL372 includes a deep, 512 sample FIFO buffer */ #define ADXL372_FIFO_SIZE 512 +#define ADXL372_X_AXIS_EN(x) ((x) & BIT(0)) +#define ADXL372_Y_AXIS_EN(x) ((x) & BIT(1)) +#define ADXL372_Z_AXIS_EN(x) ((x) & BIT(2)) /* * At +/- 200g with 12-bit resolution, scale is computed as: @@ -222,6 +237,20 @@ static const struct adxl372_axis_lookup adxl372_axis_lookup_table[] = { { BIT(0) | BIT(1) | BIT(2), ADXL372_XYZ_FIFO }, }; +static const struct iio_event_spec adxl372_events[] = { + { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_RISING, + .mask_separate = BIT(IIO_EV_INFO_VALUE), + .mask_shared_by_all = BIT(IIO_EV_INFO_PERIOD) | BIT(IIO_EV_INFO_ENABLE), + }, { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_FALLING, + .mask_separate = BIT(IIO_EV_INFO_VALUE), + .mask_shared_by_all = BIT(IIO_EV_INFO_PERIOD) | BIT(IIO_EV_INFO_ENABLE), + }, +}; + #define ADXL372_ACCEL_CHANNEL(index, reg, axis) { \ .type = IIO_ACCEL, \ .address = reg, \ @@ -239,6 +268,8 @@ static const struct adxl372_axis_lookup adxl372_axis_lookup_table[] = { .shift = 4, \ .endianness = IIO_BE, \ }, \ + .event_spec = adxl372_events, \ + .num_event_specs = ARRAY_SIZE(adxl372_events) \ } static const struct iio_chan_spec adxl372_channels[] = { @@ -252,8 +283,10 @@ struct adxl372_state { struct device *dev; struct regmap *regmap; struct iio_trigger *dready_trig; + struct iio_trigger *peak_datardy_trig; enum adxl372_fifo_mode fifo_mode; enum adxl372_fifo_format fifo_format; + unsigned int fifo_axis_mask; enum adxl372_op_mode op_mode; enum adxl372_act_proc_mode act_proc_mode; enum adxl372_odr odr; @@ -261,10 +294,12 @@ struct adxl372_state { u32 act_time_ms; u32 inact_time_ms; u8 fifo_set_size; - u8 int1_bitmask; - u8 int2_bitmask; + unsigned long int1_bitmask; + unsigned long int2_bitmask; u16 watermark; __be16 fifo_buf[ADXL372_FIFO_SIZE]; + bool peak_fifo_mode_en; + struct mutex threshold_m; /* lock for threshold */ }; static const unsigned long adxl372_channel_masks[] = { @@ -276,6 +311,46 @@ static const unsigned long adxl372_channel_masks[] = { 0 }; +static ssize_t adxl372_read_threshold_value(struct iio_dev *indio_dev, unsigned int addr, + u16 *threshold) +{ + struct adxl372_state *st = iio_priv(indio_dev); + __be16 raw_regval; + u16 regval; + int ret; + + ret = regmap_bulk_read(st->regmap, addr, &raw_regval, sizeof(raw_regval)); + if (ret < 0) + return ret; + + regval = be16_to_cpu(raw_regval); + regval >>= 5; + + *threshold = regval; + + return 0; +} + +static ssize_t adxl372_write_threshold_value(struct iio_dev *indio_dev, unsigned int addr, + u16 threshold) +{ + struct adxl372_state *st = iio_priv(indio_dev); + int ret; + + mutex_lock(&st->threshold_m); + ret = regmap_write(st->regmap, addr, ADXL372_THRESH_VAL_H_SEL(threshold)); + if (ret < 0) + goto unlock; + + ret = regmap_update_bits(st->regmap, addr + 1, GENMASK(7, 5), + ADXL372_THRESH_VAL_L_SEL(threshold) << 5); + +unlock: + mutex_unlock(&st->threshold_m); + + return ret; +} + static int adxl372_read_axis(struct adxl372_state *st, u8 addr) { __be16 regval; @@ -453,8 +528,8 @@ static int adxl372_set_inactivity_time_ms(struct adxl372_state *st, } static int adxl372_set_interrupts(struct adxl372_state *st, - unsigned char int1_bitmask, - unsigned char int2_bitmask) + unsigned long int1_bitmask, + unsigned long int2_bitmask) { int ret; @@ -523,6 +598,39 @@ static int adxl372_get_status(struct adxl372_state *st, return ret; } +static void adxl372_arrange_axis_data(struct adxl372_state *st, __be16 *sample) +{ + __be16 axis_sample[3]; + int i = 0; + + memset(axis_sample, 0, 3 * sizeof(__be16)); + if (ADXL372_X_AXIS_EN(st->fifo_axis_mask)) + axis_sample[i++] = sample[0]; + if (ADXL372_Y_AXIS_EN(st->fifo_axis_mask)) + axis_sample[i++] = sample[1]; + if (ADXL372_Z_AXIS_EN(st->fifo_axis_mask)) + axis_sample[i++] = sample[2]; + + memcpy(sample, axis_sample, 3 * sizeof(__be16)); +} + +static void adxl372_push_event(struct iio_dev *indio_dev, s64 timestamp, u8 status2) +{ + unsigned int ev_dir = IIO_EV_DIR_NONE; + + if (ADXL372_STATUS_2_ACT(status2)) + ev_dir = IIO_EV_DIR_RISING; + + if (ADXL372_STATUS_2_INACT(status2)) + ev_dir = IIO_EV_DIR_FALLING; + + if (ev_dir != IIO_EV_DIR_NONE) + iio_push_event(indio_dev, + IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_X_OR_Y_OR_Z, + IIO_EV_TYPE_THRESH, ev_dir), + timestamp); +} + static irqreturn_t adxl372_trigger_handler(int irq, void *p) { struct iio_poll_func *pf = p; @@ -536,6 +644,8 @@ static irqreturn_t adxl372_trigger_handler(int irq, void *p) if (ret < 0) goto err; + adxl372_push_event(indio_dev, iio_get_time_ns(indio_dev), status2); + if (st->fifo_mode != ADXL372_FIFO_BYPASSED && ADXL372_STATUS_1_FIFO_FULL(status1)) { /* @@ -554,8 +664,12 @@ static irqreturn_t adxl372_trigger_handler(int irq, void *p) goto err; /* Each sample is 2 bytes */ - for (i = 0; i < fifo_entries; i += st->fifo_set_size) + for (i = 0; i < fifo_entries; i += st->fifo_set_size) { + /* filter peak detection data */ + if (st->peak_fifo_mode_en) + adxl372_arrange_axis_data(st, &st->fifo_buf[i]); iio_push_to_buffers(indio_dev, &st->fifo_buf[i]); + } } err: iio_trigger_notify_done(indio_dev->trig); @@ -723,6 +837,129 @@ static int adxl372_write_raw(struct iio_dev *indio_dev, } } +static int adxl372_read_event_value(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, + enum iio_event_type type, enum iio_event_direction dir, + enum iio_event_info info, int *val, int *val2) +{ + struct adxl372_state *st = iio_priv(indio_dev); + unsigned int addr; + u16 raw_value; + int ret; + + switch (info) { + case IIO_EV_INFO_VALUE: + switch (dir) { + case IIO_EV_DIR_RISING: + addr = ADXL372_X_THRESH_ACT_H + 2 * chan->scan_index; + ret = adxl372_read_threshold_value(indio_dev, addr, &raw_value); + if (ret < 0) + return ret; + *val = raw_value * ADXL372_USCALE; + *val2 = 1000000; + return IIO_VAL_FRACTIONAL; + case IIO_EV_DIR_FALLING: + addr = ADXL372_X_THRESH_INACT_H + 2 * chan->scan_index; + ret = adxl372_read_threshold_value(indio_dev, addr, &raw_value); + if (ret < 0) + return ret; + *val = raw_value * ADXL372_USCALE; + *val2 = 1000000; + return IIO_VAL_FRACTIONAL; + default: + return -EINVAL; + } + case IIO_EV_INFO_PERIOD: + switch (dir) { + case IIO_EV_DIR_RISING: + *val = st->act_time_ms; + *val2 = 1000; + return IIO_VAL_FRACTIONAL; + case IIO_EV_DIR_FALLING: + *val = st->inact_time_ms; + *val2 = 1000; + return IIO_VAL_FRACTIONAL; + default: + return -EINVAL; + } + default: + return -EINVAL; + } +} + +static int adxl372_write_event_value(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, + enum iio_event_type type, enum iio_event_direction dir, + enum iio_event_info info, int val, int val2) +{ + struct adxl372_state *st = iio_priv(indio_dev); + unsigned int val_ms; + unsigned int addr; + u16 raw_val; + + switch (info) { + case IIO_EV_INFO_VALUE: + raw_val = DIV_ROUND_UP(val * 1000000, ADXL372_USCALE); + switch (dir) { + case IIO_EV_DIR_RISING: + addr = ADXL372_X_THRESH_ACT_H + 2 * chan->scan_index; + return adxl372_write_threshold_value(indio_dev, addr, raw_val); + case IIO_EV_DIR_FALLING: + addr = ADXL372_X_THRESH_INACT_H + 2 * chan->scan_index; + return adxl372_write_threshold_value(indio_dev, addr, raw_val); + default: + return -EINVAL; + } + case IIO_EV_INFO_PERIOD: + val_ms = val * 1000 + DIV_ROUND_UP(val2, 1000); + switch (dir) { + case IIO_EV_DIR_RISING: + return adxl372_set_activity_time_ms(st, val_ms); + case IIO_EV_DIR_FALLING: + return adxl372_set_inactivity_time_ms(st, val_ms); + default: + return -EINVAL; + } + default: + return -EINVAL; + } +} + +static int adxl372_read_event_config(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, + enum iio_event_type type, enum iio_event_direction dir) +{ + struct adxl372_state *st = iio_priv(indio_dev); + + switch (dir) { + case IIO_EV_DIR_RISING: + return FIELD_GET(ADXL372_INT1_MAP_ACT_MSK, st->int1_bitmask); + case IIO_EV_DIR_FALLING: + return FIELD_GET(ADXL372_INT1_MAP_INACT_MSK, st->int1_bitmask); + default: + return -EINVAL; + } +} + +static int adxl372_write_event_config(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, + enum iio_event_type type, enum iio_event_direction dir, + int state) +{ + struct adxl372_state *st = iio_priv(indio_dev); + + switch (dir) { + case IIO_EV_DIR_RISING: + set_mask_bits(&st->int1_bitmask, ADXL372_INT1_MAP_ACT_MSK, + ADXL372_INT1_MAP_ACT_MODE(state)); + break; + case IIO_EV_DIR_FALLING: + set_mask_bits(&st->int1_bitmask, ADXL372_INT1_MAP_INACT_MSK, + ADXL372_INT1_MAP_INACT_MODE(state)); + break; + default: + return -EINVAL; + } + + return adxl372_set_interrupts(st, st->int1_bitmask, 0); +} + static ssize_t adxl372_show_filter_freq_avail(struct device *dev, struct device_attribute *attr, char *buf) @@ -795,7 +1032,8 @@ static int adxl372_buffer_postenable(struct iio_dev *indio_dev) unsigned int mask; int i, ret; - ret = adxl372_set_interrupts(st, ADXL372_INT1_MAP_FIFO_FULL_MSK, 0); + st->int1_bitmask |= ADXL372_INT1_MAP_FIFO_FULL_MSK; + ret = adxl372_set_interrupts(st, st->int1_bitmask, 0); if (ret < 0) return ret; @@ -810,13 +1048,22 @@ static int adxl372_buffer_postenable(struct iio_dev *indio_dev) return -EINVAL; st->fifo_format = adxl372_axis_lookup_table[i].fifo_format; + st->fifo_axis_mask = adxl372_axis_lookup_table[i].bits; st->fifo_set_size = bitmap_weight(indio_dev->active_scan_mask, indio_dev->masklength); + + /* Configure the FIFO to store sets of impact event peak. */ + if (st->peak_fifo_mode_en) { + st->fifo_set_size = 3; + st->fifo_format = ADXL372_XYZ_PEAK_FIFO; + } + /* * The 512 FIFO samples can be allotted in several ways, such as: * 170 sample sets of concurrent 3-axis data * 256 sample sets of concurrent 2-axis data (user selectable) * 512 sample sets of single-axis data + * 170 sets of impact event peak (x, y, z) */ if ((st->watermark * st->fifo_set_size) > ADXL372_FIFO_SIZE) st->watermark = (ADXL372_FIFO_SIZE / st->fifo_set_size); @@ -826,7 +1073,8 @@ static int adxl372_buffer_postenable(struct iio_dev *indio_dev) ret = adxl372_configure_fifo(st); if (ret < 0) { st->fifo_mode = ADXL372_FIFO_BYPASSED; - adxl372_set_interrupts(st, 0, 0); + st->int1_bitmask &= ~ADXL372_INT1_MAP_FIFO_FULL_MSK; + adxl372_set_interrupts(st, st->int1_bitmask, 0); return ret; } @@ -837,7 +1085,8 @@ static int adxl372_buffer_predisable(struct iio_dev *indio_dev) { struct adxl372_state *st = iio_priv(indio_dev); - adxl372_set_interrupts(st, 0, 0); + st->int1_bitmask &= ~ADXL372_INT1_MAP_FIFO_FULL_MSK; + adxl372_set_interrupts(st, st->int1_bitmask, 0); st->fifo_mode = ADXL372_FIFO_BYPASSED; adxl372_configure_fifo(st); @@ -854,12 +1103,11 @@ static int adxl372_dready_trig_set_state(struct iio_trigger *trig, { struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); struct adxl372_state *st = iio_priv(indio_dev); - unsigned long int mask = 0; if (state) - mask = ADXL372_INT1_MAP_FIFO_FULL_MSK; + st->int1_bitmask |= ADXL372_INT1_MAP_FIFO_FULL_MSK; - return adxl372_set_interrupts(st, mask, 0); + return adxl372_set_interrupts(st, st->int1_bitmask, 0); } static int adxl372_validate_trigger(struct iio_dev *indio_dev, @@ -867,7 +1115,7 @@ static int adxl372_validate_trigger(struct iio_dev *indio_dev, { struct adxl372_state *st = iio_priv(indio_dev); - if (st->dready_trig != trig) + if (st->dready_trig != trig && st->peak_datardy_trig != trig) return -EINVAL; return 0; @@ -878,6 +1126,25 @@ static const struct iio_trigger_ops adxl372_trigger_ops = { .set_trigger_state = adxl372_dready_trig_set_state, }; +static int adxl372_peak_dready_trig_set_state(struct iio_trigger *trig, + bool state) +{ + struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); + struct adxl372_state *st = iio_priv(indio_dev); + + if (state) + st->int1_bitmask |= ADXL372_INT1_MAP_FIFO_FULL_MSK; + + st->peak_fifo_mode_en = state; + + return adxl372_set_interrupts(st, st->int1_bitmask, 0); +} + +static const struct iio_trigger_ops adxl372_peak_data_trigger_ops = { + .validate_device = &iio_trigger_validate_own_device, + .set_trigger_state = adxl372_peak_dready_trig_set_state, +}; + static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("400 800 1600 3200 6400"); static IIO_DEVICE_ATTR(in_accel_filter_low_pass_3db_frequency_available, 0444, adxl372_show_filter_freq_avail, NULL, 0); @@ -897,6 +1164,10 @@ static const struct iio_info adxl372_info = { .attrs = &adxl372_attrs_group, .read_raw = adxl372_read_raw, .write_raw = adxl372_write_raw, + .read_event_config = adxl372_read_event_config, + .write_event_config = adxl372_write_event_config, + .read_event_value = adxl372_read_event_value, + .write_event_value = adxl372_write_event_value, .debugfs_reg_access = &adxl372_reg_access, .hwfifo_set_watermark = adxl372_set_watermark, }; @@ -925,6 +1196,8 @@ int adxl372_probe(struct device *dev, struct regmap *regmap, st->regmap = regmap; st->irq = irq; + mutex_init(&st->threshold_m); + indio_dev->channels = adxl372_channels; indio_dev->num_channels = ARRAY_SIZE(adxl372_channels); indio_dev->available_scan_masks = adxl372_channel_masks; @@ -955,13 +1228,27 @@ int adxl372_probe(struct device *dev, struct regmap *regmap, if (st->dready_trig == NULL) return -ENOMEM; + st->peak_datardy_trig = devm_iio_trigger_alloc(dev, + "%s-dev%d-peak", + indio_dev->name, + indio_dev->id); + if (!st->peak_datardy_trig) + return -ENOMEM; + st->dready_trig->ops = &adxl372_trigger_ops; + st->peak_datardy_trig->ops = &adxl372_peak_data_trigger_ops; st->dready_trig->dev.parent = dev; + st->peak_datardy_trig->dev.parent = dev; iio_trigger_set_drvdata(st->dready_trig, indio_dev); + iio_trigger_set_drvdata(st->peak_datardy_trig, indio_dev); ret = devm_iio_trigger_register(dev, st->dready_trig); if (ret < 0) return ret; + ret = devm_iio_trigger_register(dev, st->peak_datardy_trig); + if (ret < 0) + return ret; + indio_dev->trig = iio_trigger_get(st->dready_trig); ret = devm_request_threaded_irq(dev, st->irq, diff --git a/drivers/iio/accel/adxl372_i2c.c b/drivers/iio/accel/adxl372_i2c.c index e1affe480c77..9a07ab3d151a 100644 --- a/drivers/iio/accel/adxl372_i2c.c +++ b/drivers/iio/accel/adxl372_i2c.c @@ -6,6 +6,7 @@ */ #include <linux/i2c.h> +#include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/regmap.h> @@ -46,9 +47,16 @@ static const struct i2c_device_id adxl372_i2c_id[] = { }; MODULE_DEVICE_TABLE(i2c, adxl372_i2c_id); +static const struct of_device_id adxl372_of_match[] = { + { .compatible = "adi,adxl372" }, + { } +}; +MODULE_DEVICE_TABLE(of, adxl372_of_match); + static struct i2c_driver adxl372_i2c_driver = { .driver = { .name = "adxl372_i2c", + .of_match_table = adxl372_of_match, }, .probe = adxl372_i2c_probe, .id_table = adxl372_i2c_id, diff --git a/drivers/iio/accel/adxl372_spi.c b/drivers/iio/accel/adxl372_spi.c index 3ef7e3a4804e..1f1352fee99a 100644 --- a/drivers/iio/accel/adxl372_spi.c +++ b/drivers/iio/accel/adxl372_spi.c @@ -40,8 +40,8 @@ static const struct spi_device_id adxl372_spi_id[] = { MODULE_DEVICE_TABLE(spi, adxl372_spi_id); static const struct of_device_id adxl372_of_match[] = { - { .compatible = "adi,adxl372" }, - { }, + { .compatible = "adi,adxl372" }, + { } }; MODULE_DEVICE_TABLE(of, adxl372_of_match); diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c index 5b7a467c7b27..6b74c2b04c15 100644 --- a/drivers/iio/accel/bma180.c +++ b/drivers/iio/accel/bma180.c @@ -673,7 +673,7 @@ static const struct iio_chan_spec_ext_info bma023_ext_info[] = { }; static const struct iio_chan_spec_ext_info bma180_ext_info[] = { - IIO_ENUM("power_mode", true, &bma180_power_mode_enum), + IIO_ENUM("power_mode", IIO_SHARED_BY_TYPE, &bma180_power_mode_enum), IIO_ENUM_AVAILABLE("power_mode", &bma180_power_mode_enum), IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, bma180_accel_get_mount_matrix), { } @@ -1000,19 +1000,15 @@ static int bma180_probe(struct i2c_client *client, return ret; data->vdd_supply = devm_regulator_get(dev, "vdd"); - if (IS_ERR(data->vdd_supply)) { - if (PTR_ERR(data->vdd_supply) != -EPROBE_DEFER) - dev_err(dev, "Failed to get vdd regulator %d\n", - (int)PTR_ERR(data->vdd_supply)); - return PTR_ERR(data->vdd_supply); - } + if (IS_ERR(data->vdd_supply)) + return dev_err_probe(dev, PTR_ERR(data->vdd_supply), + "Failed to get vdd regulator\n"); + data->vddio_supply = devm_regulator_get(dev, "vddio"); - if (IS_ERR(data->vddio_supply)) { - if (PTR_ERR(data->vddio_supply) != -EPROBE_DEFER) - dev_err(dev, "Failed to get vddio regulator %d\n", - (int)PTR_ERR(data->vddio_supply)); - return PTR_ERR(data->vddio_supply); - } + if (IS_ERR(data->vddio_supply)) + return dev_err_probe(dev, PTR_ERR(data->vddio_supply), + "Failed to get vddio regulator\n"); + /* Typical voltage 2.4V these are min and max */ ret = regulator_set_voltage(data->vdd_supply, 1620000, 3600000); if (ret) diff --git a/drivers/iio/accel/bma220_spi.c b/drivers/iio/accel/bma220_spi.c index da8b36cc8628..3c9b0c6954e6 100644 --- a/drivers/iio/accel/bma220_spi.c +++ b/drivers/iio/accel/bma220_spi.c @@ -2,16 +2,18 @@ /** * BMA220 Digital triaxial acceleration sensor driver * - * Copyright (c) 2016, Intel Corporation. + * Copyright (c) 2016,2020 Intel Corporation. */ -#include <linux/acpi.h> +#include <linux/bits.h> #include <linux/kernel.h> +#include <linux/mod_devicetable.h> #include <linux/module.h> +#include <linux/spi/spi.h> + #include <linux/iio/buffer.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> -#include <linux/spi/spi.h> #include <linux/iio/trigger_consumer.h> #include <linux/iio/triggered_buffer.h> @@ -23,14 +25,13 @@ #define BMA220_REG_SUSPEND 0x18 #define BMA220_CHIP_ID 0xDD -#define BMA220_READ_MASK 0x80 -#define BMA220_RANGE_MASK 0x03 +#define BMA220_READ_MASK BIT(7) +#define BMA220_RANGE_MASK GENMASK(1, 0) #define BMA220_DATA_SHIFT 2 #define BMA220_SUSPEND_SLEEP 0xFF #define BMA220_SUSPEND_WAKE 0x00 #define BMA220_DEVICE_NAME "bma220" -#define BMA220_SCALE_AVAILABLE "0.623 1.248 2.491 4.983" #define BMA220_ACCEL_CHANNEL(index, reg, axis) { \ .type = IIO_ACCEL, \ @@ -55,19 +56,8 @@ enum bma220_axis { AXIS_Z, }; -static IIO_CONST_ATTR(in_accel_scale_available, BMA220_SCALE_AVAILABLE); - -static struct attribute *bma220_attributes[] = { - &iio_const_attr_in_accel_scale_available.dev_attr.attr, - NULL, -}; - -static const struct attribute_group bma220_attribute_group = { - .attrs = bma220_attributes, -}; - -static const int bma220_scale_table[][4] = { - {0, 623000}, {1, 248000}, {2, 491000}, {4, 983000} +static const int bma220_scale_table[][2] = { + {0, 623000}, {1, 248000}, {2, 491000}, {4, 983000}, }; struct bma220_data { @@ -182,10 +172,26 @@ static int bma220_write_raw(struct iio_dev *indio_dev, return -EINVAL; } +static int bma220_read_avail(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + const int **vals, int *type, int *length, + long mask) +{ + switch (mask) { + case IIO_CHAN_INFO_SCALE: + *vals = (int *)bma220_scale_table; + *type = IIO_VAL_INT_PLUS_MICRO; + *length = ARRAY_SIZE(bma220_scale_table) * 2; + return IIO_AVAIL_LIST; + default: + return -EINVAL; + } +} + static const struct iio_info bma220_info = { .read_raw = bma220_read_raw, .write_raw = bma220_write_raw, - .attrs = &bma220_attribute_group, + .read_avail = bma220_read_avail, }; static int bma220_init(struct spi_device *spi) @@ -198,10 +204,12 @@ static int bma220_init(struct spi_device *spi) /* Make sure the chip is powered on */ ret = bma220_read_reg(spi, BMA220_REG_SUSPEND); + if (ret == BMA220_SUSPEND_WAKE) + ret = bma220_read_reg(spi, BMA220_REG_SUSPEND); if (ret < 0) return ret; - else if (ret == BMA220_SUSPEND_WAKE) - return bma220_read_reg(spi, BMA220_REG_SUSPEND); + if (ret == BMA220_SUSPEND_WAKE) + return -EBUSY; return 0; } @@ -212,10 +220,12 @@ static int bma220_deinit(struct spi_device *spi) /* Make sure the chip is powered off */ ret = bma220_read_reg(spi, BMA220_REG_SUSPEND); + if (ret == BMA220_SUSPEND_SLEEP) + ret = bma220_read_reg(spi, BMA220_REG_SUSPEND); if (ret < 0) return ret; - else if (ret == BMA220_SUSPEND_SLEEP) - return bma220_read_reg(spi, BMA220_REG_SUSPEND); + if (ret == BMA220_SUSPEND_SLEEP) + return -EBUSY; return 0; } @@ -245,7 +255,7 @@ static int bma220_probe(struct spi_device *spi) indio_dev->available_scan_masks = bma220_accel_scan_masks; ret = bma220_init(data->spi_device); - if (ret < 0) + if (ret) return ret; ret = iio_triggered_buffer_setup(indio_dev, iio_pollfunc_store_time, @@ -278,56 +288,43 @@ static int bma220_remove(struct spi_device *spi) return bma220_deinit(spi); } -#ifdef CONFIG_PM_SLEEP -static int bma220_suspend(struct device *dev) +static __maybe_unused int bma220_suspend(struct device *dev) { - struct bma220_data *data = - iio_priv(spi_get_drvdata(to_spi_device(dev))); + struct bma220_data *data = iio_priv(dev_get_drvdata(dev)); /* The chip can be suspended/woken up by a simple register read. */ return bma220_read_reg(data->spi_device, BMA220_REG_SUSPEND); } -static int bma220_resume(struct device *dev) +static __maybe_unused int bma220_resume(struct device *dev) { - struct bma220_data *data = - iio_priv(spi_get_drvdata(to_spi_device(dev))); + struct bma220_data *data = iio_priv(dev_get_drvdata(dev)); return bma220_read_reg(data->spi_device, BMA220_REG_SUSPEND); } - static SIMPLE_DEV_PM_OPS(bma220_pm_ops, bma220_suspend, bma220_resume); -#define BMA220_PM_OPS (&bma220_pm_ops) -#else -#define BMA220_PM_OPS NULL -#endif - static const struct spi_device_id bma220_spi_id[] = { {"bma220", 0}, {} }; -#ifdef CONFIG_ACPI static const struct acpi_device_id bma220_acpi_id[] = { {"BMA0220", 0}, {} }; - MODULE_DEVICE_TABLE(spi, bma220_spi_id); -#endif static struct spi_driver bma220_driver = { .driver = { .name = "bma220_spi", - .pm = BMA220_PM_OPS, - .acpi_match_table = ACPI_PTR(bma220_acpi_id), + .pm = &bma220_pm_ops, + .acpi_match_table = bma220_acpi_id, }, .probe = bma220_probe, .remove = bma220_remove, .id_table = bma220_spi_id, }; - module_spi_driver(bma220_driver); MODULE_AUTHOR("Tiberiu Breana <tiberiu.a.breana@intel.com>"); diff --git a/drivers/iio/accel/cros_ec_accel_legacy.c b/drivers/iio/accel/cros_ec_accel_legacy.c index b6f3471b62dc..8f1232c38e0d 100644 --- a/drivers/iio/accel/cros_ec_accel_legacy.c +++ b/drivers/iio/accel/cros_ec_accel_legacy.c @@ -215,7 +215,7 @@ static int cros_ec_accel_legacy_probe(struct platform_device *pdev) return -ENOMEM; ret = cros_ec_sensors_core_init(pdev, indio_dev, true, - cros_ec_sensors_capture, NULL); + cros_ec_sensors_capture, NULL, false); if (ret) return ret; diff --git a/drivers/iio/accel/mma8452.c b/drivers/iio/accel/mma8452.c index 853febc29488..bf1d2c8afdbd 100644 --- a/drivers/iio/accel/mma8452.c +++ b/drivers/iio/accel/mma8452.c @@ -1543,22 +1543,14 @@ static int mma8452_probe(struct i2c_client *client, data->chip_info = match->data; data->vdd_reg = devm_regulator_get(&client->dev, "vdd"); - if (IS_ERR(data->vdd_reg)) { - if (PTR_ERR(data->vdd_reg) == -EPROBE_DEFER) - return -EPROBE_DEFER; - - dev_err(&client->dev, "failed to get VDD regulator!\n"); - return PTR_ERR(data->vdd_reg); - } + if (IS_ERR(data->vdd_reg)) + return dev_err_probe(&client->dev, PTR_ERR(data->vdd_reg), + "failed to get VDD regulator!\n"); data->vddio_reg = devm_regulator_get(&client->dev, "vddio"); - if (IS_ERR(data->vddio_reg)) { - if (PTR_ERR(data->vddio_reg) == -EPROBE_DEFER) - return -EPROBE_DEFER; - - dev_err(&client->dev, "failed to get VDDIO regulator!\n"); - return PTR_ERR(data->vddio_reg); - } + if (IS_ERR(data->vddio_reg)) + return dev_err_probe(&client->dev, PTR_ERR(data->vddio_reg), + "failed to get VDDIO regulator!\n"); ret = regulator_enable(data->vdd_reg); if (ret) { diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index d94dc800b842..91ae90514aff 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -340,7 +340,7 @@ config AXP288_ADC config BCM_IPROC_ADC tristate "Broadcom IPROC ADC driver" - depends on ARCH_BCM_IPROC || COMPILE_TEST + depends on (ARCH_BCM_IPROC && OF) || COMPILE_TEST depends on MFD_SYSCON default ARCH_BCM_CYGNUS help @@ -863,7 +863,7 @@ config RN5T618_ADC config ROCKCHIP_SARADC tristate "Rockchip SARADC driver" - depends on ARCH_ROCKCHIP || (ARM && COMPILE_TEST) + depends on ARCH_ROCKCHIP || COMPILE_TEST depends on RESET_CONTROLLER select IIO_BUFFER select IIO_TRIGGERED_BUFFER diff --git a/drivers/iio/adc/ad7291.c b/drivers/iio/adc/ad7291.c index 62fde2aad282..2301a0e27f23 100644 --- a/drivers/iio/adc/ad7291.c +++ b/drivers/iio/adc/ad7291.c @@ -20,8 +20,6 @@ #include <linux/iio/sysfs.h> #include <linux/iio/events.h> -#include <linux/platform_data/ad7291.h> - /* * Simplified handling * @@ -465,7 +463,6 @@ static const struct iio_info ad7291_info = { static int ad7291_probe(struct i2c_client *client, const struct i2c_device_id *id) { - struct ad7291_platform_data *pdata = client->dev.platform_data; struct ad7291_chip_info *chip; struct iio_dev *indio_dev; int ret; @@ -475,16 +472,6 @@ static int ad7291_probe(struct i2c_client *client, return -ENOMEM; chip = iio_priv(indio_dev); - if (pdata && pdata->use_external_ref) { - chip->reg = devm_regulator_get(&client->dev, "vref"); - if (IS_ERR(chip->reg)) - return PTR_ERR(chip->reg); - - ret = regulator_enable(chip->reg); - if (ret) - return ret; - } - mutex_init(&chip->state_lock); /* this is only used for device removal purposes */ i2c_set_clientdata(client, indio_dev); @@ -495,8 +482,21 @@ static int ad7291_probe(struct i2c_client *client, AD7291_T_SENSE_MASK | /* Tsense always enabled */ AD7291_ALERT_POLARITY; /* set irq polarity low level */ - if (pdata && pdata->use_external_ref) + chip->reg = devm_regulator_get_optional(&client->dev, "vref"); + if (IS_ERR(chip->reg)) { + if (PTR_ERR(chip->reg) != -ENODEV) + return PTR_ERR(chip->reg); + + chip->reg = NULL; + } + + if (chip->reg) { + ret = regulator_enable(chip->reg); + if (ret) + return ret; + chip->command |= AD7291_EXT_REF; + } indio_dev->name = id->name; indio_dev->channels = ad7291_channels; @@ -567,9 +567,16 @@ static const struct i2c_device_id ad7291_id[] = { MODULE_DEVICE_TABLE(i2c, ad7291_id); +static const struct of_device_id ad7291_of_match[] = { + { .compatible = "adi,ad7291" }, + {} +}; +MODULE_DEVICE_TABLE(of, ad7291_of_match); + static struct i2c_driver ad7291_driver = { .driver = { .name = KBUILD_MODNAME, + .of_match_table = ad7291_of_match, }, .probe = ad7291_probe, .remove = ad7291_remove, diff --git a/drivers/iio/adc/ad7292.c b/drivers/iio/adc/ad7292.c index 2eafbe7ac7c7..ab204e9199e9 100644 --- a/drivers/iio/adc/ad7292.c +++ b/drivers/iio/adc/ad7292.c @@ -310,8 +310,10 @@ static int ad7292_probe(struct spi_device *spi) for_each_available_child_of_node(spi->dev.of_node, child) { diff_channels = of_property_read_bool(child, "diff-channels"); - if (diff_channels) + if (diff_channels) { + of_node_put(child); break; + } } if (diff_channels) { diff --git a/drivers/iio/adc/ad7949.c b/drivers/iio/adc/ad7949.c index d9566a83988a..5d597e5050f6 100644 --- a/drivers/iio/adc/ad7949.c +++ b/drivers/iio/adc/ad7949.c @@ -39,7 +39,7 @@ static const struct ad7949_adc_spec ad7949_adc_spec[] = { * struct ad7949_adc_chip - AD ADC chip * @lock: protects write sequences * @vref: regulator generating Vref - * @iio_dev: reference to iio structure + * @indio_dev: reference to iio structure * @spi: reference to spi structure * @resolution: resolution of the chip * @cfg: copy of the configuration register diff --git a/drivers/iio/adc/ad9467.c b/drivers/iio/adc/ad9467.c index 1e8fd83b9bc2..19a45dd43796 100644 --- a/drivers/iio/adc/ad9467.c +++ b/drivers/iio/adc/ad9467.c @@ -77,6 +77,22 @@ #define AN877_ADC_DCO_DELAY_ENABLE 0x80 /* + * Analog Devices AD9265 16-Bit, 125/105/80 MSPS ADC + */ + +#define CHIPID_AD9265 0x64 +#define AD9265_DEF_OUTPUT_MODE 0x40 +#define AD9265_REG_VREF_MASK 0xC0 + +/* + * Analog Devices AD9434 12-Bit, 370/500 MSPS ADC + */ + +#define CHIPID_AD9434 0x6A +#define AD9434_DEF_OUTPUT_MODE 0x00 +#define AD9434_REG_VREF_MASK 0xC0 + +/* * Analog Devices AD9467 16-Bit, 200/250 MSPS ADC */ @@ -85,9 +101,20 @@ #define AD9467_REG_VREF_MASK 0x0F enum { + ID_AD9265, + ID_AD9434, ID_AD9467, }; +struct ad9467_chip_info { + struct adi_axi_adc_chip_info axi_adc_info; + unsigned int default_output_mode; + unsigned int vref_mask; +}; + +#define to_ad9467_chip_info(_info) \ + container_of(_info, struct ad9467_chip_info, axi_adc_info) + struct ad9467_state { struct spi_device *spi; struct clk *clk; @@ -149,6 +176,17 @@ static int ad9467_reg_access(struct adi_axi_adc_conv *conv, unsigned int reg, return 0; } +static const unsigned int ad9265_scale_table[][2] = { + {1250, 0x00}, {1500, 0x40}, {1750, 0x80}, {2000, 0xC0}, +}; + +static const unsigned int ad9434_scale_table[][2] = { + {1600, 0x1C}, {1580, 0x1D}, {1550, 0x1E}, {1520, 0x1F}, {1500, 0x00}, + {1470, 0x01}, {1440, 0x02}, {1420, 0x03}, {1390, 0x04}, {1360, 0x05}, + {1340, 0x06}, {1310, 0x07}, {1280, 0x08}, {1260, 0x09}, {1230, 0x0A}, + {1200, 0x0B}, {1180, 0x0C}, +}; + static const unsigned int ad9467_scale_table[][2] = { {2000, 0}, {2100, 6}, {2200, 7}, {2300, 8}, {2400, 9}, {2500, 10}, @@ -182,39 +220,63 @@ static void __ad9467_get_scale(struct adi_axi_adc_conv *conv, int index, }, \ } +static const struct iio_chan_spec ad9434_channels[] = { + AD9467_CHAN(0, 0, 12, 'S'), +}; + static const struct iio_chan_spec ad9467_channels[] = { AD9467_CHAN(0, 0, 16, 'S'), }; -static const struct adi_axi_adc_chip_info ad9467_chip_tbl[] = { +static const struct ad9467_chip_info ad9467_chip_tbl[] = { + [ID_AD9265] = { + .axi_adc_info = { + .id = CHIPID_AD9265, + .max_rate = 125000000UL, + .scale_table = ad9265_scale_table, + .num_scales = ARRAY_SIZE(ad9265_scale_table), + .channels = ad9467_channels, + .num_channels = ARRAY_SIZE(ad9467_channels), + }, + .default_output_mode = AD9265_DEF_OUTPUT_MODE, + .vref_mask = AD9265_REG_VREF_MASK, + }, + [ID_AD9434] = { + .axi_adc_info = { + .id = CHIPID_AD9434, + .max_rate = 500000000UL, + .scale_table = ad9434_scale_table, + .num_scales = ARRAY_SIZE(ad9434_scale_table), + .channels = ad9434_channels, + .num_channels = ARRAY_SIZE(ad9434_channels), + }, + .default_output_mode = AD9434_DEF_OUTPUT_MODE, + .vref_mask = AD9434_REG_VREF_MASK, + }, [ID_AD9467] = { - .id = CHIPID_AD9467, - .max_rate = 250000000UL, - .scale_table = ad9467_scale_table, - .num_scales = ARRAY_SIZE(ad9467_scale_table), - .channels = ad9467_channels, - .num_channels = ARRAY_SIZE(ad9467_channels), + .axi_adc_info = { + .id = CHIPID_AD9467, + .max_rate = 250000000UL, + .scale_table = ad9467_scale_table, + .num_scales = ARRAY_SIZE(ad9467_scale_table), + .channels = ad9467_channels, + .num_channels = ARRAY_SIZE(ad9467_channels), + }, + .default_output_mode = AD9467_DEF_OUTPUT_MODE, + .vref_mask = AD9467_REG_VREF_MASK, }, }; static int ad9467_get_scale(struct adi_axi_adc_conv *conv, int *val, int *val2) { const struct adi_axi_adc_chip_info *info = conv->chip_info; + const struct ad9467_chip_info *info1 = to_ad9467_chip_info(info); struct ad9467_state *st = adi_axi_adc_conv_priv(conv); - unsigned int i, vref_val, vref_mask; + unsigned int i, vref_val; vref_val = ad9467_spi_read(st->spi, AN877_ADC_REG_VREF); - switch (info->id) { - case CHIPID_AD9467: - vref_mask = AD9467_REG_VREF_MASK; - break; - default: - vref_mask = 0xFFFF; - break; - } - - vref_val &= vref_mask; + vref_val &= info1->vref_mask; for (i = 0; i < info->num_scales; i++) { if (vref_val == info->scale_table[i][1]) @@ -316,18 +378,6 @@ static int ad9467_preenable_setup(struct adi_axi_adc_conv *conv) return ad9467_outputmode_set(st->spi, st->output_mode); } -static int ad9467_setup(struct ad9467_state *st, unsigned int chip_id) -{ - switch (chip_id) { - case CHIPID_AD9467: - st->output_mode = AD9467_DEF_OUTPUT_MODE | - AN877_ADC_OUTPUT_MODE_TWOS_COMPLEMENT; - return 0; - default: - return -EINVAL; - } -} - static void ad9467_clk_disable(void *data) { struct ad9467_state *st = data; @@ -337,7 +387,7 @@ static void ad9467_clk_disable(void *data) static int ad9467_probe(struct spi_device *spi) { - const struct adi_axi_adc_chip_info *info; + const struct ad9467_chip_info *info; struct adi_axi_adc_conv *conv; struct ad9467_state *st; unsigned int id; @@ -386,11 +436,12 @@ static int ad9467_probe(struct spi_device *spi) spi_set_drvdata(spi, st); - conv->chip_info = info; + conv->chip_info = &info->axi_adc_info; id = ad9467_spi_read(spi, AN877_ADC_REG_CHIP_ID); if (id != conv->chip_info->id) { - dev_err(&spi->dev, "Unrecognized CHIP_ID 0x%X\n", id); + dev_err(&spi->dev, "Mismatch CHIP_ID, got 0x%X, expected 0x%X\n", + id, conv->chip_info->id); return -ENODEV; } @@ -399,10 +450,15 @@ static int ad9467_probe(struct spi_device *spi) conv->read_raw = ad9467_read_raw; conv->preenable_setup = ad9467_preenable_setup; - return ad9467_setup(st, id); + st->output_mode = info->default_output_mode | + AN877_ADC_OUTPUT_MODE_TWOS_COMPLEMENT; + + return 0; } static const struct of_device_id ad9467_of_match[] = { + { .compatible = "adi,ad9265", .data = &ad9467_chip_tbl[ID_AD9265], }, + { .compatible = "adi,ad9434", .data = &ad9467_chip_tbl[ID_AD9434], }, { .compatible = "adi,ad9467", .data = &ad9467_chip_tbl[ID_AD9467], }, {} }; diff --git a/drivers/iio/adc/adi-axi-adc.c b/drivers/iio/adc/adi-axi-adc.c index 86b6b65916ee..9109da2d2e15 100644 --- a/drivers/iio/adc/adi-axi-adc.c +++ b/drivers/iio/adc/adi-axi-adc.c @@ -276,7 +276,7 @@ static struct attribute *adi_axi_adc_attributes[] = { static umode_t axi_adc_attr_is_visible(struct kobject *kobj, struct attribute *attr, int n) { - struct device *dev = container_of(kobj, struct device, kobj); + struct device *dev = kobj_to_dev(kobj); struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct adi_axi_adc_state *st = iio_priv(indio_dev); struct adi_axi_adc_conv *conv = &st->client->conv; diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c index de9583d6cddd..b917a4714a9c 100644 --- a/drivers/iio/adc/at91-sama5d2_adc.c +++ b/drivers/iio/adc/at91-sama5d2_adc.c @@ -884,7 +884,7 @@ static bool at91_adc_current_chan_is_touch(struct iio_dev *indio_dev) AT91_SAMA5D2_MAX_CHAN_IDX + 1); } -static int at91_adc_buffer_preenable(struct iio_dev *indio_dev) +static int at91_adc_buffer_prepare(struct iio_dev *indio_dev) { int ret; u8 bit; @@ -901,7 +901,7 @@ static int at91_adc_buffer_preenable(struct iio_dev *indio_dev) /* we continue with the triggered buffer */ ret = at91_adc_dma_start(indio_dev); if (ret) { - dev_err(&indio_dev->dev, "buffer postenable failed\n"); + dev_err(&indio_dev->dev, "buffer prepare failed\n"); return ret; } @@ -989,7 +989,6 @@ static int at91_adc_buffer_postdisable(struct iio_dev *indio_dev) } static const struct iio_buffer_setup_ops at91_buffer_setup_ops = { - .preenable = &at91_adc_buffer_preenable, .postdisable = &at91_adc_buffer_postdisable, }; @@ -1563,6 +1562,7 @@ static void at91_adc_dma_disable(struct platform_device *pdev) static int at91_adc_set_watermark(struct iio_dev *indio_dev, unsigned int val) { struct at91_adc_state *st = iio_priv(indio_dev); + int ret; if (val > AT91_HWFIFO_MAX_SIZE) return -EINVAL; @@ -1586,7 +1586,15 @@ static int at91_adc_set_watermark(struct iio_dev *indio_dev, unsigned int val) else if (val > 1) at91_adc_dma_init(to_platform_device(&indio_dev->dev)); - return 0; + /* + * We can start the DMA only after setting the watermark and + * having the DMA initialization completed + */ + ret = at91_adc_buffer_prepare(indio_dev); + if (ret) + at91_adc_dma_disable(to_platform_device(&indio_dev->dev)); + + return ret; } static int at91_adc_update_scan_mode(struct iio_dev *indio_dev, @@ -1764,17 +1772,13 @@ static int at91_adc_probe(struct platform_device *pdev) mutex_init(&st->lock); INIT_WORK(&st->touch_st.workq, at91_adc_workq_handler); - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -EINVAL; + st->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res); + if (IS_ERR(st->base)) + return PTR_ERR(st->base); /* if we plan to use DMA, we need the physical address of the regs */ st->dma_st.phys_addr = res->start; - st->base = devm_ioremap_resource(&pdev->dev, res); - if (IS_ERR(st->base)) - return PTR_ERR(st->base); - st->irq = platform_get_irq(pdev, 0); if (st->irq <= 0) { if (!st->irq) diff --git a/drivers/iio/adc/axp20x_adc.c b/drivers/iio/adc/axp20x_adc.c index 798ff2d89691..3e0c0233b431 100644 --- a/drivers/iio/adc/axp20x_adc.c +++ b/drivers/iio/adc/axp20x_adc.c @@ -9,10 +9,10 @@ #include <linux/interrupt.h> #include <linux/io.h> #include <linux/module.h> -#include <linux/of.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> +#include <linux/property.h> #include <linux/regmap.h> #include <linux/thermal.h> @@ -67,7 +67,7 @@ struct axp_data; struct axp20x_adc_iio { struct regmap *regmap; - struct axp_data *data; + const struct axp_data *data; }; enum axp20x_adc_channel_v { @@ -670,15 +670,15 @@ static int axp20x_probe(struct platform_device *pdev) info->regmap = axp20x_dev->regmap; indio_dev->modes = INDIO_DIRECT_MODE; - if (!pdev->dev.of_node) { + if (!dev_fwnode(&pdev->dev)) { const struct platform_device_id *id; id = platform_get_device_id(pdev); - info->data = (struct axp_data *)id->driver_data; + info->data = (const struct axp_data *)id->driver_data; } else { struct device *dev = &pdev->dev; - info->data = (struct axp_data *)of_device_get_match_data(dev); + info->data = device_get_match_data(dev); } indio_dev->name = platform_get_device_id(pdev)->name; @@ -742,7 +742,7 @@ static int axp20x_remove(struct platform_device *pdev) static struct platform_driver axp20x_adc_driver = { .driver = { .name = "axp20x-adc", - .of_match_table = of_match_ptr(axp20x_adc_of_match), + .of_match_table = axp20x_adc_of_match, }, .id_table = axp20x_adc_id_match, .probe = axp20x_probe, diff --git a/drivers/iio/adc/bcm_iproc_adc.c b/drivers/iio/adc/bcm_iproc_adc.c index 936da32faa9d..44e1e53ada72 100644 --- a/drivers/iio/adc/bcm_iproc_adc.c +++ b/drivers/iio/adc/bcm_iproc_adc.c @@ -4,7 +4,7 @@ */ #include <linux/module.h> -#include <linux/of.h> +#include <linux/mod_devicetable.h> #include <linux/io.h> #include <linux/clk.h> #include <linux/mfd/syscon.h> @@ -617,7 +617,7 @@ static struct platform_driver iproc_adc_driver = { .remove = iproc_adc_remove, .driver = { .name = "iproc-static-adc", - .of_match_table = of_match_ptr(iproc_adc_of_match), + .of_match_table = iproc_adc_of_match, }, }; module_platform_driver(iproc_adc_driver); diff --git a/drivers/iio/adc/envelope-detector.c b/drivers/iio/adc/envelope-detector.c index 2a4fd3bb64cf..d73eac36153f 100644 --- a/drivers/iio/adc/envelope-detector.c +++ b/drivers/iio/adc/envelope-detector.c @@ -348,11 +348,9 @@ static int envelope_detector_probe(struct platform_device *pdev) indio_dev->num_channels = 1; env->dac = devm_iio_channel_get(dev, "dac"); - if (IS_ERR(env->dac)) { - if (PTR_ERR(env->dac) != -EPROBE_DEFER) - dev_err(dev, "failed to get dac input channel\n"); - return PTR_ERR(env->dac); - } + if (IS_ERR(env->dac)) + return dev_err_probe(dev, PTR_ERR(env->dac), + "failed to get dac input channel\n"); env->comp_irq = platform_get_irq_byname(pdev, "comp"); if (env->comp_irq < 0) @@ -360,11 +358,9 @@ static int envelope_detector_probe(struct platform_device *pdev) ret = devm_request_irq(dev, env->comp_irq, envelope_detector_comp_isr, 0, "envelope-detector", env); - if (ret) { - if (ret != -EPROBE_DEFER) - dev_err(dev, "failed to request interrupt\n"); - return ret; - } + if (ret) + return dev_err_probe(dev, ret, "failed to request interrupt\n"); + env->comp_irq_trigger = irq_get_trigger_type(env->comp_irq); if (env->comp_irq_trigger & IRQF_TRIGGER_RISING) env->comp_irq_trigger_inv |= IRQF_TRIGGER_FALLING; diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c index 7d23b6c33284..99f4404e9fd1 100644 --- a/drivers/iio/adc/exynos_adc.c +++ b/drivers/iio/adc/exynos_adc.c @@ -138,6 +138,16 @@ struct exynos_adc { bool read_ts; u32 ts_x; u32 ts_y; + + /* + * Lock to protect from potential concurrent access to the + * completion callback during a manual conversion. For this driver + * a wait-callback is used to wait for the conversion result, + * so in the meantime no other read request (or conversion start) + * must be performed, otherwise it would interfere with the + * current conversion result. + */ + struct mutex lock; }; struct exynos_adc_data { @@ -542,7 +552,7 @@ static int exynos_read_raw(struct iio_dev *indio_dev, return -EINVAL; } - mutex_lock(&indio_dev->mlock); + mutex_lock(&info->lock); reinit_completion(&info->completion); /* Select the channel to be used and Trigger conversion */ @@ -562,7 +572,7 @@ static int exynos_read_raw(struct iio_dev *indio_dev, ret = IIO_VAL_INT; } - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&info->lock); return ret; } @@ -573,7 +583,7 @@ static int exynos_read_s3c64xx_ts(struct iio_dev *indio_dev, int *x, int *y) unsigned long timeout; int ret; - mutex_lock(&indio_dev->mlock); + mutex_lock(&info->lock); info->read_ts = true; reinit_completion(&info->completion); @@ -598,7 +608,7 @@ static int exynos_read_s3c64xx_ts(struct iio_dev *indio_dev, int *x, int *y) } info->read_ts = false; - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&info->lock); return ret; } @@ -844,13 +854,9 @@ static int exynos_adc_probe(struct platform_device *pdev) } info->vdd = devm_regulator_get(&pdev->dev, "vdd"); - if (IS_ERR(info->vdd)) { - if (PTR_ERR(info->vdd) != -EPROBE_DEFER) - dev_err(&pdev->dev, - "failed getting regulator, err = %ld\n", - PTR_ERR(info->vdd)); - return PTR_ERR(info->vdd); - } + if (IS_ERR(info->vdd)) + return dev_err_probe(&pdev->dev, PTR_ERR(info->vdd), + "failed getting regulator"); ret = regulator_enable(info->vdd); if (ret) @@ -872,6 +878,8 @@ static int exynos_adc_probe(struct platform_device *pdev) indio_dev->channels = exynos_adc_iio_channels; indio_dev->num_channels = info->data->num_channels; + mutex_init(&info->lock); + ret = request_irq(info->irq, exynos_adc_isr, 0, dev_name(&pdev->dev), info); if (ret < 0) { diff --git a/drivers/iio/adc/fsl-imx25-gcq.c b/drivers/iio/adc/fsl-imx25-gcq.c index 8cb51cf7a816..ab5139e911c3 100644 --- a/drivers/iio/adc/fsl-imx25-gcq.c +++ b/drivers/iio/adc/fsl-imx25-gcq.c @@ -40,6 +40,15 @@ struct mx25_gcq_priv { int irq; struct regulator *vref[4]; u32 channel_vref_mv[MX25_NUM_CFGS]; + /* + * Lock to protect the device state during a potential concurrent + * read access from userspace. Reading a raw value requires a sequence + * of register writes, then a wait for a completion callback, + * and finally a register read, during which userspace could issue + * another read request. This lock protects a read access from + * ocurring before another one has finished. + */ + struct mutex lock; }; #define MX25_CQG_CHAN(chan, id) {\ @@ -137,9 +146,9 @@ static int mx25_gcq_read_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_RAW: - mutex_lock(&indio_dev->mlock); + mutex_lock(&priv->lock); ret = mx25_gcq_get_raw_value(&indio_dev->dev, chan, priv, val); - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&priv->lock); return ret; case IIO_CHAN_INFO_SCALE: @@ -314,6 +323,8 @@ static int mx25_gcq_probe(struct platform_device *pdev) return PTR_ERR(priv->regs); } + mutex_init(&priv->lock); + init_completion(&priv->completed); ret = mx25_gcq_setup_cfgs(pdev, priv); diff --git a/drivers/iio/adc/ltc2497-core.c b/drivers/iio/adc/ltc2497-core.c index 9b8fd9c32364..2a485c8a1940 100644 --- a/drivers/iio/adc/ltc2497-core.c +++ b/drivers/iio/adc/ltc2497-core.c @@ -180,13 +180,9 @@ int ltc2497core_probe(struct device *dev, struct iio_dev *indio_dev) return ret; ddata->ref = devm_regulator_get(dev, "vref"); - if (IS_ERR(ddata->ref)) { - if (PTR_ERR(ddata->ref) != -EPROBE_DEFER) - dev_err(dev, "Failed to get vref regulator: %pe\n", - ddata->ref); - - return PTR_ERR(ddata->ref); - } + if (IS_ERR(ddata->ref)) + return dev_err_probe(dev, PTR_ERR(ddata->ref), + "Failed to get vref regulator\n"); ret = regulator_enable(ddata->ref); if (ret < 0) { diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c index 1a9189ba69ae..e03988698755 100644 --- a/drivers/iio/adc/meson_saradc.c +++ b/drivers/iio/adc/meson_saradc.c @@ -719,11 +719,8 @@ static int meson_sar_adc_temp_sensor_init(struct iio_dev *indio_dev) if (ret == -ENODEV) return 0; - if (ret != -EPROBE_DEFER) - dev_err(indio_dev->dev.parent, - "failed to get temperature_calib cell\n"); - - return ret; + return dev_err_probe(indio_dev->dev.parent, ret, + "failed to get temperature_calib cell\n"); } priv->tsc_regmap = @@ -1153,16 +1150,13 @@ static const struct of_device_id meson_sar_adc_of_match[] = { { .compatible = "amlogic,meson8-saradc", .data = &meson_sar_adc_meson8_data, - }, - { + }, { .compatible = "amlogic,meson8b-saradc", .data = &meson_sar_adc_meson8b_data, - }, - { + }, { .compatible = "amlogic,meson8m2-saradc", .data = &meson_sar_adc_meson8m2_data, - }, - { + }, { .compatible = "amlogic,meson-gxbb-saradc", .data = &meson_sar_adc_gxbb_data, }, { @@ -1178,7 +1172,7 @@ static const struct of_device_id meson_sar_adc_of_match[] = { .compatible = "amlogic,meson-g12a-saradc", .data = &meson_sar_adc_g12a_data, }, - {}, + { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, meson_sar_adc_of_match); diff --git a/drivers/iio/adc/palmas_gpadc.c b/drivers/iio/adc/palmas_gpadc.c index 1ca6570be66a..889b88768b63 100644 --- a/drivers/iio/adc/palmas_gpadc.c +++ b/drivers/iio/adc/palmas_gpadc.c @@ -834,18 +834,7 @@ static struct platform_driver palmas_gpadc_driver = { .of_match_table = of_palmas_gpadc_match_tbl, }, }; - -static int __init palmas_gpadc_init(void) -{ - return platform_driver_register(&palmas_gpadc_driver); -} -module_init(palmas_gpadc_init); - -static void __exit palmas_gpadc_exit(void) -{ - platform_driver_unregister(&palmas_gpadc_driver); -} -module_exit(palmas_gpadc_exit); +module_platform_driver(palmas_gpadc_driver); MODULE_DESCRIPTION("palmas GPADC driver"); MODULE_AUTHOR("Pradeep Goudagunta<pgoudagunta@nvidia.com>"); diff --git a/drivers/iio/adc/rcar-gyroadc.c b/drivers/iio/adc/rcar-gyroadc.c index d2c1419e72a0..9f38cf3c7dc2 100644 --- a/drivers/iio/adc/rcar-gyroadc.c +++ b/drivers/iio/adc/rcar-gyroadc.c @@ -357,7 +357,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) num_channels = ARRAY_SIZE(rcar_gyroadc_iio_channels_3); break; default: - return -EINVAL; + goto err_e_inval; } /* @@ -374,7 +374,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) dev_err(dev, "Failed to get child reg property of ADC \"%pOFn\".\n", child); - return ret; + goto err_of_node_put; } /* Channel number is too high. */ @@ -382,7 +382,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) dev_err(dev, "Only %i channels supported with %pOFn, but reg = <%i>.\n", num_channels, child, reg); - return -EINVAL; + goto err_e_inval; } } @@ -391,7 +391,7 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) dev_err(dev, "Channel %i uses different ADC mode than the rest.\n", reg); - return -EINVAL; + goto err_e_inval; } /* Channel is valid, grab the regulator. */ @@ -401,7 +401,8 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) if (IS_ERR(vref)) { dev_dbg(dev, "Channel %i 'vref' supply not connected.\n", reg); - return PTR_ERR(vref); + ret = PTR_ERR(vref); + goto err_of_node_put; } priv->vref[reg] = vref; @@ -425,8 +426,10 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) * attached to the GyroADC at a time, so if we found it, * we can stop parsing here. */ - if (childmode == RCAR_GYROADC_MODE_SELECT_1_MB88101A) + if (childmode == RCAR_GYROADC_MODE_SELECT_1_MB88101A) { + of_node_put(child); break; + } } if (first) { @@ -435,6 +438,12 @@ static int rcar_gyroadc_parse_subdevs(struct iio_dev *indio_dev) } return 0; + +err_e_inval: + ret = -EINVAL; +err_of_node_put: + of_node_put(child); + return ret; } static void rcar_gyroadc_deinit_supplies(struct iio_dev *indio_dev) @@ -495,12 +504,9 @@ static int rcar_gyroadc_probe(struct platform_device *pdev) return PTR_ERR(priv->regs); priv->clk = devm_clk_get(dev, "fck"); - if (IS_ERR(priv->clk)) { - ret = PTR_ERR(priv->clk); - if (ret != -EPROBE_DEFER) - dev_err(dev, "Failed to get IF clock (ret=%i)\n", ret); - return ret; - } + if (IS_ERR(priv->clk)) + return dev_err_probe(dev, PTR_ERR(priv->clk), + "Failed to get IF clock\n"); ret = rcar_gyroadc_parse_subdevs(indio_dev); if (ret) diff --git a/drivers/iio/adc/stm32-adc-core.c b/drivers/iio/adc/stm32-adc-core.c index 0e2068ec068b..cd870c089182 100644 --- a/drivers/iio/adc/stm32-adc-core.c +++ b/drivers/iio/adc/stm32-adc-core.c @@ -582,11 +582,9 @@ static int stm32_adc_core_switches_probe(struct device *dev, priv->syscfg = syscon_regmap_lookup_by_phandle(np, "st,syscfg"); if (IS_ERR(priv->syscfg)) { ret = PTR_ERR(priv->syscfg); - if (ret != -ENODEV) { - if (ret != -EPROBE_DEFER) - dev_err(dev, "Can't probe syscfg: %d\n", ret); - return ret; - } + if (ret != -ENODEV) + return dev_err_probe(dev, ret, "Can't probe syscfg\n"); + priv->syscfg = NULL; } @@ -596,12 +594,9 @@ static int stm32_adc_core_switches_probe(struct device *dev, priv->booster = devm_regulator_get_optional(dev, "booster"); if (IS_ERR(priv->booster)) { ret = PTR_ERR(priv->booster); - if (ret != -ENODEV) { - if (ret != -EPROBE_DEFER) - dev_err(dev, "can't get booster %d\n", - ret); - return ret; - } + if (ret != -ENODEV) + return dev_err_probe(dev, ret, "can't get booster\n"); + priv->booster = NULL; } } @@ -612,11 +607,9 @@ static int stm32_adc_core_switches_probe(struct device *dev, priv->vdd = devm_regulator_get_optional(dev, "vdd"); if (IS_ERR(priv->vdd)) { ret = PTR_ERR(priv->vdd); - if (ret != -ENODEV) { - if (ret != -EPROBE_DEFER) - dev_err(dev, "can't get vdd %d\n", ret); - return ret; - } + if (ret != -ENODEV) + return dev_err_probe(dev, ret, "can't get vdd\n"); + priv->vdd = NULL; } } @@ -669,42 +662,24 @@ static int stm32_adc_probe(struct platform_device *pdev) priv->common.phys_base = res->start; priv->vdda = devm_regulator_get(&pdev->dev, "vdda"); - if (IS_ERR(priv->vdda)) { - ret = PTR_ERR(priv->vdda); - if (ret != -EPROBE_DEFER) - dev_err(&pdev->dev, "vdda get failed, %d\n", ret); - return ret; - } + if (IS_ERR(priv->vdda)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->vdda), + "vdda get failed\n"); priv->vref = devm_regulator_get(&pdev->dev, "vref"); - if (IS_ERR(priv->vref)) { - ret = PTR_ERR(priv->vref); - if (ret != -EPROBE_DEFER) - dev_err(&pdev->dev, "vref get failed, %d\n", ret); - return ret; - } + if (IS_ERR(priv->vref)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->vref), + "vref get failed\n"); - priv->aclk = devm_clk_get(&pdev->dev, "adc"); - if (IS_ERR(priv->aclk)) { - ret = PTR_ERR(priv->aclk); - if (ret != -ENOENT) { - if (ret != -EPROBE_DEFER) - dev_err(&pdev->dev, "Can't get 'adc' clock\n"); - return ret; - } - priv->aclk = NULL; - } + priv->aclk = devm_clk_get_optional(&pdev->dev, "adc"); + if (IS_ERR(priv->aclk)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->aclk), + "Can't get 'adc' clock\n"); - priv->bclk = devm_clk_get(&pdev->dev, "bus"); - if (IS_ERR(priv->bclk)) { - ret = PTR_ERR(priv->bclk); - if (ret != -ENOENT) { - if (ret != -EPROBE_DEFER) - dev_err(&pdev->dev, "Can't get 'bus' clock\n"); - return ret; - } - priv->bclk = NULL; - } + priv->bclk = devm_clk_get_optional(&pdev->dev, "bus"); + if (IS_ERR(priv->bclk)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->bclk), + "Can't get 'bus' clock\n"); ret = stm32_adc_core_switches_probe(dev, priv); if (ret) @@ -794,6 +769,13 @@ static int stm32_adc_core_runtime_resume(struct device *dev) { return stm32_adc_core_hw_start(dev); } + +static int stm32_adc_core_runtime_idle(struct device *dev) +{ + pm_runtime_mark_last_busy(dev); + + return 0; +} #endif static const struct dev_pm_ops stm32_adc_core_pm_ops = { @@ -801,7 +783,7 @@ static const struct dev_pm_ops stm32_adc_core_pm_ops = { pm_runtime_force_resume) SET_RUNTIME_PM_OPS(stm32_adc_core_runtime_suspend, stm32_adc_core_runtime_resume, - NULL) + stm32_adc_core_runtime_idle) }; static const struct stm32_adc_priv_cfg stm32f4_adc_priv_cfg = { diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c index 3eb9ebe8372f..b3f31f147347 100644 --- a/drivers/iio/adc/stm32-adc.c +++ b/drivers/iio/adc/stm32-adc.c @@ -1805,13 +1805,9 @@ static int stm32_adc_dma_request(struct device *dev, struct iio_dev *indio_dev) adc->dma_chan = dma_request_chan(dev, "rx"); if (IS_ERR(adc->dma_chan)) { ret = PTR_ERR(adc->dma_chan); - if (ret != -ENODEV) { - if (ret != -EPROBE_DEFER) - dev_err(dev, - "DMA channel request failed with %d\n", - ret); - return ret; - } + if (ret != -ENODEV) + return dev_err_probe(dev, ret, + "DMA channel request failed with\n"); /* DMA is optional: fall back to IRQ mode */ adc->dma_chan = NULL; diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c index 5e10fb4f3704..c7e0109315f8 100644 --- a/drivers/iio/adc/stm32-dfsdm-adc.c +++ b/drivers/iio/adc/stm32-dfsdm-adc.c @@ -1473,13 +1473,9 @@ static int stm32_dfsdm_adc_init(struct device *dev, struct iio_dev *indio_dev) /* Optionally request DMA */ ret = stm32_dfsdm_dma_request(dev, indio_dev); if (ret) { - if (ret != -ENODEV) { - if (ret != -EPROBE_DEFER) - dev_err(dev, - "DMA channel request failed with %d\n", - ret); - return ret; - } + if (ret != -ENODEV) + return dev_err_probe(dev, ret, + "DMA channel request failed with\n"); dev_dbg(dev, "No DMA support\n"); return 0; diff --git a/drivers/iio/adc/stm32-dfsdm-core.c b/drivers/iio/adc/stm32-dfsdm-core.c index 26e2011c5868..42a7377704a4 100644 --- a/drivers/iio/adc/stm32-dfsdm-core.c +++ b/drivers/iio/adc/stm32-dfsdm-core.c @@ -226,16 +226,13 @@ static int stm32_dfsdm_parse_of(struct platform_device *pdev, if (!node) return -EINVAL; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(&pdev->dev, "Failed to get memory resource\n"); - return -ENODEV; - } - priv->dfsdm.phys_base = res->start; - priv->dfsdm.base = devm_ioremap_resource(&pdev->dev, res); + priv->dfsdm.base = devm_platform_get_and_ioremap_resource(pdev, 0, + &res); if (IS_ERR(priv->dfsdm.base)) return PTR_ERR(priv->dfsdm.base); + priv->dfsdm.phys_base = res->start; + /* * "dfsdm" clock is mandatory for DFSDM peripheral clocking. * "dfsdm" or "audio" clocks can be used as source clock for @@ -243,12 +240,9 @@ static int stm32_dfsdm_parse_of(struct platform_device *pdev, * on use case. */ priv->clk = devm_clk_get(&pdev->dev, "dfsdm"); - if (IS_ERR(priv->clk)) { - ret = PTR_ERR(priv->clk); - if (ret != -EPROBE_DEFER) - dev_err(&pdev->dev, "Failed to get clock (%d)\n", ret); - return ret; - } + if (IS_ERR(priv->clk)) + return dev_err_probe(&pdev->dev, PTR_ERR(priv->clk), + "Failed to get clock\n"); priv->aclk = devm_clk_get(&pdev->dev, "audio"); if (IS_ERR(priv->aclk)) diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c index cf63983a54d9..b64718daa201 100644 --- a/drivers/iio/adc/ti-adc081c.c +++ b/drivers/iio/adc/ti-adc081c.c @@ -19,7 +19,6 @@ #include <linux/i2c.h> #include <linux/module.h> #include <linux/mod_devicetable.h> -#include <linux/acpi.h> #include <linux/iio/iio.h> #include <linux/iio/buffer.h> @@ -158,17 +157,7 @@ static int adc081c_probe(struct i2c_client *client, if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_WORD_DATA)) return -EOPNOTSUPP; - if (ACPI_COMPANION(&client->dev)) { - const struct acpi_device_id *ad_id; - - ad_id = acpi_match_device(client->dev.driver->acpi_match_table, - &client->dev); - if (!ad_id) - return -ENODEV; - model = &adcxx1c_models[ad_id->driver_data]; - } else { - model = &adcxx1c_models[id->driver_data]; - } + model = &adcxx1c_models[id->driver_data]; iio = devm_iio_device_alloc(&client->dev, sizeof(*adc)); if (!iio) @@ -243,21 +232,10 @@ static const struct of_device_id adc081c_of_match[] = { }; MODULE_DEVICE_TABLE(of, adc081c_of_match); -#ifdef CONFIG_ACPI -static const struct acpi_device_id adc081c_acpi_match[] = { - { "ADC081C", ADC081C }, - { "ADC101C", ADC101C }, - { "ADC121C", ADC121C }, - { } -}; -MODULE_DEVICE_TABLE(acpi, adc081c_acpi_match); -#endif - static struct i2c_driver adc081c_driver = { .driver = { .name = "adc081c", .of_match_table = adc081c_of_match, - .acpi_match_table = ACPI_PTR(adc081c_acpi_match), }, .probe = adc081c_probe, .remove = adc081c_remove, diff --git a/drivers/iio/adc/ti-adc0832.c b/drivers/iio/adc/ti-adc0832.c index c7a085dce1f4..0261b3cfc92b 100644 --- a/drivers/iio/adc/ti-adc0832.c +++ b/drivers/iio/adc/ti-adc0832.c @@ -29,6 +29,12 @@ struct adc0832 { struct regulator *reg; struct mutex lock; u8 mux_bits; + /* + * Max size needed: 16x 1 byte ADC data + 8 bytes timestamp + * May be shorter if not all channels are enabled subject + * to the timestamp remaining 8 byte aligned. + */ + u8 data[24] __aligned(8); u8 tx_buf[2] ____cacheline_aligned; u8 rx_buf[2]; @@ -200,7 +206,6 @@ static irqreturn_t adc0832_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct adc0832 *adc = iio_priv(indio_dev); - u8 data[24] = { }; /* 16x 1 byte ADC data + 8 bytes timestamp */ int scan_index; int i = 0; @@ -218,10 +223,10 @@ static irqreturn_t adc0832_trigger_handler(int irq, void *p) goto out; } - data[i] = ret; + adc->data[i] = ret; i++; } - iio_push_to_buffers_with_timestamp(indio_dev, data, + iio_push_to_buffers_with_timestamp(indio_dev, adc->data, iio_get_time_ns(indio_dev)); out: mutex_unlock(&adc->lock); diff --git a/drivers/iio/adc/ti-adc108s102.c b/drivers/iio/adc/ti-adc108s102.c index 9b9b27415c93..183b2245e89b 100644 --- a/drivers/iio/adc/ti-adc108s102.c +++ b/drivers/iio/adc/ti-adc108s102.c @@ -20,6 +20,7 @@ #include <linux/iio/trigger_consumer.h> #include <linux/interrupt.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/property.h> #include <linux/regulator/consumer.h> #include <linux/spi/spi.h> @@ -299,13 +300,11 @@ static int adc108s102_remove(struct spi_device *spi) return 0; } -#ifdef CONFIG_OF static const struct of_device_id adc108s102_of_match[] = { { .compatible = "ti,adc108s102" }, { } }; MODULE_DEVICE_TABLE(of, adc108s102_of_match); -#endif #ifdef CONFIG_ACPI static const struct acpi_device_id adc108s102_acpi_ids[] = { @@ -324,7 +323,7 @@ MODULE_DEVICE_TABLE(spi, adc108s102_id); static struct spi_driver adc108s102_driver = { .driver = { .name = "adc108s102", - .of_match_table = of_match_ptr(adc108s102_of_match), + .of_match_table = adc108s102_of_match, .acpi_match_table = ACPI_PTR(adc108s102_acpi_ids), }, .probe = adc108s102_probe, diff --git a/drivers/iio/adc/ti-adc12138.c b/drivers/iio/adc/ti-adc12138.c index e485719cd2c4..fcd5d39dd03e 100644 --- a/drivers/iio/adc/ti-adc12138.c +++ b/drivers/iio/adc/ti-adc12138.c @@ -47,6 +47,12 @@ struct adc12138 { struct completion complete; /* The number of cclk periods for the S/H's acquisition time */ unsigned int acquisition_time; + /* + * Maximum size needed: 16x 2 bytes ADC data + 8 bytes timestamp. + * Less may be need if not all channels are enabled, as long as + * the 8 byte alignment of the timestamp is maintained. + */ + __be16 data[20] __aligned(8); u8 tx_buf[2] ____cacheline_aligned; u8 rx_buf[2]; @@ -329,7 +335,6 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct adc12138 *adc = iio_priv(indio_dev); - __be16 data[20] = { }; /* 16x 2 bytes ADC data + 8 bytes timestamp */ __be16 trash; int ret; int scan_index; @@ -345,7 +350,7 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p) reinit_completion(&adc->complete); ret = adc12138_start_and_read_conv(adc, scan_chan, - i ? &data[i - 1] : &trash); + i ? &adc->data[i - 1] : &trash); if (ret) { dev_warn(&adc->spi->dev, "failed to start conversion\n"); @@ -362,7 +367,7 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p) } if (i) { - ret = adc12138_read_conv_data(adc, &data[i - 1]); + ret = adc12138_read_conv_data(adc, &adc->data[i - 1]); if (ret) { dev_warn(&adc->spi->dev, "failed to get conversion data\n"); @@ -370,7 +375,7 @@ static irqreturn_t adc12138_trigger_handler(int irq, void *p) } } - iio_push_to_buffers_with_timestamp(indio_dev, data, + iio_push_to_buffers_with_timestamp(indio_dev, adc->data, iio_get_time_ns(indio_dev)); out: mutex_unlock(&adc->lock); diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c index e86f55ce093f..3143f35a6509 100644 --- a/drivers/iio/adc/ti-adc128s052.c +++ b/drivers/iio/adc/ti-adc128s052.c @@ -13,6 +13,7 @@ #include <linux/err.h> #include <linux/spi/spi.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/iio/iio.h> #include <linux/property.h> #include <linux/regulator/consumer.h> @@ -220,7 +221,7 @@ MODULE_DEVICE_TABLE(acpi, adc128_acpi_match); static struct spi_driver adc128_driver = { .driver = { .name = "adc128s052", - .of_match_table = of_match_ptr(adc128_of_match), + .of_match_table = adc128_of_match, .acpi_match_table = ACPI_PTR(adc128_acpi_match), }, .probe = adc128_probe, diff --git a/drivers/iio/afe/iio-rescale.c b/drivers/iio/afe/iio-rescale.c index 69c0f277ada0..e42ea2b1707d 100644 --- a/drivers/iio/afe/iio-rescale.c +++ b/drivers/iio/afe/iio-rescale.c @@ -276,11 +276,9 @@ static int rescale_probe(struct platform_device *pdev) int ret; source = devm_iio_channel_get(dev, NULL); - if (IS_ERR(source)) { - if (PTR_ERR(source) != -EPROBE_DEFER) - dev_err(dev, "failed to get source channel\n"); - return PTR_ERR(source); - } + if (IS_ERR(source)) + return dev_err_probe(dev, PTR_ERR(source), + "failed to get source channel\n"); sizeof_ext_info = iio_get_channel_ext_info_count(source); if (sizeof_ext_info) { diff --git a/drivers/iio/amplifiers/Kconfig b/drivers/iio/amplifiers/Kconfig index 9b02c9a2bc8a..5eb1357a9c78 100644 --- a/drivers/iio/amplifiers/Kconfig +++ b/drivers/iio/amplifiers/Kconfig @@ -18,6 +18,7 @@ config AD8366 AD8366 Dual-Digital Variable Gain Amplifier (VGA) ADA4961 BiCMOS RF Digital Gain Amplifier (DGA) ADL5240 Digitally controlled variable gain amplifier (VGA) + HMC1119 0.25 dB LSB, 7-Bit, Silicon Digital Attenuator To compile this driver as a module, choose M here: the module will be called ad8366. diff --git a/drivers/iio/amplifiers/hmc425a.c b/drivers/iio/amplifiers/hmc425a.c index 582708924e4f..9efa692151f0 100644 --- a/drivers/iio/amplifiers/hmc425a.c +++ b/drivers/iio/amplifiers/hmc425a.c @@ -201,12 +201,9 @@ static int hmc425a_probe(struct platform_device *pdev) st->gain = st->chip_info->default_gain; st->gpios = devm_gpiod_get_array(&pdev->dev, "ctrl", GPIOD_OUT_LOW); - if (IS_ERR(st->gpios)) { - ret = PTR_ERR(st->gpios); - if (ret != -EPROBE_DEFER) - dev_err(&pdev->dev, "failed to get gpios\n"); - return ret; - } + if (IS_ERR(st->gpios)) + return dev_err_probe(&pdev->dev, PTR_ERR(st->gpios), + "failed to get gpios\n"); if (st->gpios->ndescs != st->chip_info->num_gpios) { dev_err(&pdev->dev, "%d GPIOs needed to operate\n", diff --git a/drivers/iio/buffer/Kconfig b/drivers/iio/buffer/Kconfig index 63f265c8b466..047b931591a9 100644 --- a/drivers/iio/buffer/Kconfig +++ b/drivers/iio/buffer/Kconfig @@ -11,7 +11,7 @@ config IIO_BUFFER_CB usage. That is, those where the data is pushed to the consumer. config IIO_BUFFER_DMA - tristate + tristate "Industrial I/O DMA buffer infrastructure" help Provides the generic IIO DMA buffer infrastructure that can be used by drivers for devices with DMA support to implement the IIO buffer. @@ -20,13 +20,13 @@ config IIO_BUFFER_DMA infrastructure. config IIO_BUFFER_DMAENGINE - tristate + tristate "Industrial I/O DMA buffer integration with DMAEngine" select IIO_BUFFER_DMA help Provides a bonding of the generic IIO DMA buffer infrastructure with the - DMAengine framework. This can be used by converter drivers with a DMA port + DMAEngine framework. This can be used by converter drivers with a DMA port connected to an external DMA controller which is supported by the - DMAengine framework. + DMAEngine framework. Should be selected by drivers that want to use this functionality. @@ -48,7 +48,7 @@ config IIO_KFIFO_BUF often to read from the buffer. config IIO_TRIGGERED_BUFFER - tristate + tristate "Industrial I/O triggered buffer support" select IIO_TRIGGER select IIO_KFIFO_BUF help diff --git a/drivers/iio/buffer/industrialio-buffer-dmaengine.c b/drivers/iio/buffer/industrialio-buffer-dmaengine.c index 6dedf12b69a4..93b4e9e6bb55 100644 --- a/drivers/iio/buffer/industrialio-buffer-dmaengine.c +++ b/drivers/iio/buffer/industrialio-buffer-dmaengine.c @@ -45,7 +45,8 @@ static struct dmaengine_buffer *iio_buffer_to_dmaengine_buffer( return container_of(buffer, struct dmaengine_buffer, queue.buffer); } -static void iio_dmaengine_buffer_block_done(void *data) +static void iio_dmaengine_buffer_block_done(void *data, + const struct dmaengine_result *result) { struct iio_dma_buffer_block *block = data; unsigned long flags; @@ -53,6 +54,7 @@ static void iio_dmaengine_buffer_block_done(void *data) spin_lock_irqsave(&block->queue->list_lock, flags); list_del(&block->head); spin_unlock_irqrestore(&block->queue->list_lock, flags); + block->bytes_used -= result->residue; iio_dma_buffer_block_done(block); } @@ -74,7 +76,7 @@ static int iio_dmaengine_buffer_submit_block(struct iio_dma_buffer_queue *queue, if (!desc) return -ENOMEM; - desc->callback = iio_dmaengine_buffer_block_done; + desc->callback_result = iio_dmaengine_buffer_block_done; desc->callback_param = block; cookie = dmaengine_submit(desc); @@ -157,7 +159,7 @@ static const struct attribute *iio_dmaengine_buffer_attrs[] = { * Once done using the buffer iio_dmaengine_buffer_free() should be used to * release it. */ -struct iio_buffer *iio_dmaengine_buffer_alloc(struct device *dev, +static struct iio_buffer *iio_dmaengine_buffer_alloc(struct device *dev, const char *channel) { struct dmaengine_buffer *dmaengine_buffer; @@ -209,7 +211,6 @@ err_free: kfree(dmaengine_buffer); return ERR_PTR(ret); } -EXPORT_SYMBOL(iio_dmaengine_buffer_alloc); /** * iio_dmaengine_buffer_free() - Free dmaengine buffer @@ -217,7 +218,7 @@ EXPORT_SYMBOL(iio_dmaengine_buffer_alloc); * * Frees a buffer previously allocated with iio_dmaengine_buffer_alloc(). */ -void iio_dmaengine_buffer_free(struct iio_buffer *buffer) +static void iio_dmaengine_buffer_free(struct iio_buffer *buffer) { struct dmaengine_buffer *dmaengine_buffer = iio_buffer_to_dmaengine_buffer(buffer); @@ -227,7 +228,6 @@ void iio_dmaengine_buffer_free(struct iio_buffer *buffer) iio_buffer_put(buffer); } -EXPORT_SYMBOL_GPL(iio_dmaengine_buffer_free); static void __devm_iio_dmaengine_buffer_free(struct device *dev, void *res) { diff --git a/drivers/iio/chemical/ams-iaq-core.c b/drivers/iio/chemical/ams-iaq-core.c index 8c1b64fd424a..97be3669c554 100644 --- a/drivers/iio/chemical/ams-iaq-core.c +++ b/drivers/iio/chemical/ams-iaq-core.c @@ -7,6 +7,7 @@ */ #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/mutex.h> #include <linux/init.h> #include <linux/i2c.h> @@ -177,7 +178,7 @@ MODULE_DEVICE_TABLE(of, ams_iaqcore_dt_ids); static struct i2c_driver ams_iaqcore_driver = { .driver = { .name = "ams-iaq-core", - .of_match_table = of_match_ptr(ams_iaqcore_dt_ids), + .of_match_table = ams_iaqcore_dt_ids, }, .probe = ams_iaqcore_probe, .id_table = ams_iaqcore_id, diff --git a/drivers/iio/chemical/atlas-ezo-sensor.c b/drivers/iio/chemical/atlas-ezo-sensor.c index 8b72bb012363..b1bacfe3c3ce 100644 --- a/drivers/iio/chemical/atlas-ezo-sensor.c +++ b/drivers/iio/chemical/atlas-ezo-sensor.c @@ -16,10 +16,13 @@ #include <linux/iio/iio.h> #define ATLAS_EZO_DRV_NAME "atlas-ezo-sensor" -#define ATLAS_CO2_INT_TIME_IN_MS 950 +#define ATLAS_INT_TIME_IN_MS 950 +#define ATLAS_INT_HUM_TIME_IN_MS 350 enum { ATLAS_CO2_EZO, + ATLAS_O2_EZO, + ATLAS_HUM_EZO, }; struct atlas_ezo_device { @@ -38,15 +41,37 @@ struct atlas_ezo_data { u8 buffer[8]; }; +#define ATLAS_CONCENTRATION_CHANNEL(_modifier) \ + { \ + .type = IIO_CONCENTRATION, \ + .modified = 1,\ + .channel2 = _modifier, \ + .info_mask_separate = \ + BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), \ + .scan_index = 0, \ + .scan_type = { \ + .sign = 'u', \ + .realbits = 32, \ + .storagebits = 32, \ + .endianness = IIO_CPU, \ + }, \ + } + static const struct iio_chan_spec atlas_co2_ezo_channels[] = { + ATLAS_CONCENTRATION_CHANNEL(IIO_MOD_CO2), +}; + +static const struct iio_chan_spec atlas_o2_ezo_channels[] = { + ATLAS_CONCENTRATION_CHANNEL(IIO_MOD_O2), +}; + +static const struct iio_chan_spec atlas_hum_ezo_channels[] = { { - .type = IIO_CONCENTRATION, - .modified = 1, - .channel2 = IIO_MOD_CO2, + .type = IIO_HUMIDITYRELATIVE, .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), .scan_index = 0, - .scan_type = { + .scan_type = { .sign = 'u', .realbits = 32, .storagebits = 32, @@ -59,10 +84,30 @@ static struct atlas_ezo_device atlas_ezo_devices[] = { [ATLAS_CO2_EZO] = { .channels = atlas_co2_ezo_channels, .num_channels = 1, - .delay = ATLAS_CO2_INT_TIME_IN_MS, + .delay = ATLAS_INT_TIME_IN_MS, + }, + [ATLAS_O2_EZO] = { + .channels = atlas_o2_ezo_channels, + .num_channels = 1, + .delay = ATLAS_INT_TIME_IN_MS, + }, + [ATLAS_HUM_EZO] = { + .channels = atlas_hum_ezo_channels, + .num_channels = 1, + .delay = ATLAS_INT_HUM_TIME_IN_MS, }, }; +static void atlas_ezo_sanitize(char *buf) +{ + char *ptr = strchr(buf, '.'); + + if (!ptr) + return; + + memmove(ptr, ptr + 1, strlen(ptr)); +} + static int atlas_ezo_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) @@ -96,6 +141,9 @@ static int atlas_ezo_read_raw(struct iio_dev *indio_dev, return -EBUSY; } + /* removing floating point for fixed number representation */ + atlas_ezo_sanitize(data->buffer + 2); + ret = kstrtol(data->buffer + 1, 10, &tmp); *val = tmp; @@ -105,9 +153,27 @@ static int atlas_ezo_read_raw(struct iio_dev *indio_dev, return ret ? ret : IIO_VAL_INT; } case IIO_CHAN_INFO_SCALE: - *val = 0; - *val2 = 100; /* 0.0001 */ - return IIO_VAL_INT_PLUS_MICRO; + switch (chan->type) { + case IIO_HUMIDITYRELATIVE: + *val = 10; + return IIO_VAL_INT; + case IIO_CONCENTRATION: + break; + default: + return -EINVAL; + } + + /* IIO_CONCENTRATION modifiers */ + switch (chan->channel2) { + case IIO_MOD_CO2: + *val = 0; + *val2 = 100; /* 0.0001 */ + return IIO_VAL_INT_PLUS_MICRO; + case IIO_MOD_O2: + *val = 100; + return IIO_VAL_INT; + } + return -EINVAL; } return 0; @@ -119,12 +185,16 @@ static const struct iio_info atlas_info = { static const struct i2c_device_id atlas_ezo_id[] = { { "atlas-co2-ezo", ATLAS_CO2_EZO }, + { "atlas-o2-ezo", ATLAS_O2_EZO }, + { "atlas-hum-ezo", ATLAS_HUM_EZO }, {} }; MODULE_DEVICE_TABLE(i2c, atlas_ezo_id); static const struct of_device_id atlas_ezo_dt_ids[] = { { .compatible = "atlas,co2-ezo", .data = (void *)ATLAS_CO2_EZO, }, + { .compatible = "atlas,o2-ezo", .data = (void *)ATLAS_O2_EZO, }, + { .compatible = "atlas,hum-ezo", .data = (void *)ATLAS_HUM_EZO, }, {} }; MODULE_DEVICE_TABLE(of, atlas_ezo_dt_ids); diff --git a/drivers/iio/chemical/atlas-sensor.c b/drivers/iio/chemical/atlas-sensor.c index 43069636fcd5..cdab9d04dedd 100644 --- a/drivers/iio/chemical/atlas-sensor.c +++ b/drivers/iio/chemical/atlas-sensor.c @@ -15,7 +15,7 @@ #include <linux/irq.h> #include <linux/irq_work.h> #include <linux/i2c.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> #include <linux/regmap.h> #include <linux/iio/iio.h> #include <linux/iio/buffer.h> @@ -620,7 +620,6 @@ static int atlas_probe(struct i2c_client *client, { struct atlas_data *data; struct atlas_device *chip; - const struct of_device_id *of_id; struct iio_trigger *trig; struct iio_dev *indio_dev; int ret; @@ -629,11 +628,10 @@ static int atlas_probe(struct i2c_client *client, if (!indio_dev) return -ENOMEM; - of_id = of_match_device(atlas_dt_ids, &client->dev); - if (!of_id) + if (!dev_fwnode(&client->dev)) chip = &atlas_devices[id->driver_data]; else - chip = &atlas_devices[(unsigned long)of_id->data]; + chip = &atlas_devices[(unsigned long)device_get_match_data(&client->dev)]; indio_dev->info = &atlas_info; indio_dev->name = ATLAS_DRV_NAME; @@ -775,7 +773,7 @@ static const struct dev_pm_ops atlas_pm_ops = { static struct i2c_driver atlas_driver = { .driver = { .name = ATLAS_DRV_NAME, - .of_match_table = of_match_ptr(atlas_dt_ids), + .of_match_table = atlas_dt_ids, .pm = &atlas_pm_ops, }, .probe = atlas_probe, diff --git a/drivers/iio/chemical/scd30_core.c b/drivers/iio/chemical/scd30_core.c index eac76972f83e..4d0d798c7cd3 100644 --- a/drivers/iio/chemical/scd30_core.c +++ b/drivers/iio/chemical/scd30_core.c @@ -705,13 +705,8 @@ int scd30_probe(struct device *dev, int irq, const char *name, void *priv, indio_dev->available_scan_masks = scd30_scan_masks; state->vdd = devm_regulator_get(dev, "vdd"); - if (IS_ERR(state->vdd)) { - if (PTR_ERR(state->vdd) == -EPROBE_DEFER) - return -EPROBE_DEFER; - - dev_err(dev, "failed to get regulator\n"); - return PTR_ERR(state->vdd); - } + if (IS_ERR(state->vdd)) + return dev_err_probe(dev, PTR_ERR(state->vdd), "failed to get regulator\n"); ret = regulator_enable(state->vdd); if (ret) diff --git a/drivers/iio/chemical/sgp30.c b/drivers/iio/chemical/sgp30.c index 2c4086c48136..1029c457be15 100644 --- a/drivers/iio/chemical/sgp30.c +++ b/drivers/iio/chemical/sgp30.c @@ -20,9 +20,9 @@ #include <linux/delay.h> #include <linux/kthread.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/mutex.h> #include <linux/i2c.h> -#include <linux/of_device.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> @@ -227,6 +227,7 @@ static int sgp_verify_buffer(const struct sgp_data *data, * @cmd: SGP Command to issue * @buf: Raw data buffer to use * @word_count: Num words to read, excluding CRC bytes + * @duration_us: Time taken to sensor to take a reading and data to be ready. * * Return: 0 on success, negative error otherwise. */ @@ -409,6 +410,7 @@ static int sgp_read_raw(struct iio_dev *indio_dev, static int sgp_check_compat(struct sgp_data *data, unsigned int product_id) { + struct device *dev = &data->client->dev; const struct sgp_version *supported_versions; u16 ix, num_fs; u16 product, generation, major, minor; @@ -416,21 +418,20 @@ static int sgp_check_compat(struct sgp_data *data, /* driver does not match product */ generation = SGP_VERS_GEN(data); if (generation != 0) { - dev_err(&data->client->dev, + dev_err(dev, "incompatible product generation %d != 0", generation); return -ENODEV; } product = SGP_VERS_PRODUCT(data); if (product != product_id) { - dev_err(&data->client->dev, - "sensor reports a different product: 0x%04hx\n", + dev_err(dev, "sensor reports a different product: 0x%04hx\n", product); return -ENODEV; } if (SGP_VERS_RESERVED(data)) - dev_warn(&data->client->dev, "reserved bit is set\n"); + dev_warn(dev, "reserved bit is set\n"); /* engineering samples are not supported: no interface guarantees */ if (SGP_VERS_ENG_BIT(data)) @@ -456,8 +457,7 @@ static int sgp_check_compat(struct sgp_data *data, minor >= supported_versions[ix].minor) return 0; } - dev_err(&data->client->dev, "unsupported sgp version: %d.%d\n", - major, minor); + dev_err(dev, "unsupported sgp version: %d.%d\n", major, minor); return -ENODEV; } @@ -499,19 +499,18 @@ static const struct of_device_id sgp_dt_ids[] = { static int sgp_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct iio_dev *indio_dev; struct sgp_data *data; - const struct of_device_id *of_id; unsigned long product_id; int ret; - indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); if (!indio_dev) return -ENOMEM; - of_id = of_match_device(sgp_dt_ids, &client->dev); - if (of_id) - product_id = (unsigned long)of_id->data; + if (dev_fwnode(dev)) + product_id = (unsigned long)device_get_match_data(dev); else product_id = id->driver_data; @@ -541,9 +540,9 @@ static int sgp_probe(struct i2c_client *client, sgp_init(data); - ret = devm_iio_device_register(&client->dev, indio_dev); + ret = devm_iio_device_register(dev, indio_dev); if (ret) { - dev_err(&client->dev, "failed to register iio device\n"); + dev_err(dev, "failed to register iio device\n"); return ret; } @@ -576,7 +575,7 @@ MODULE_DEVICE_TABLE(of, sgp_dt_ids); static struct i2c_driver sgp_driver = { .driver = { .name = "sgp30", - .of_match_table = of_match_ptr(sgp_dt_ids), + .of_match_table = sgp_dt_ids, }, .probe = sgp_probe, .remove = sgp_remove, diff --git a/drivers/iio/chemical/vz89x.c b/drivers/iio/chemical/vz89x.c index 5586eb8e12cd..23b22a5f5c1c 100644 --- a/drivers/iio/chemical/vz89x.c +++ b/drivers/iio/chemical/vz89x.c @@ -10,8 +10,7 @@ #include <linux/mutex.h> #include <linux/init.h> #include <linux/i2c.h> -#include <linux/of.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> @@ -352,12 +351,12 @@ MODULE_DEVICE_TABLE(of, vz89x_dt_ids); static int vz89x_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct iio_dev *indio_dev; struct vz89x_data *data; - const struct of_device_id *of_id; int chip_id; - indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); if (!indio_dev) return -ENOMEM; data = iio_priv(indio_dev); @@ -370,11 +369,10 @@ static int vz89x_probe(struct i2c_client *client, else return -EOPNOTSUPP; - of_id = of_match_device(vz89x_dt_ids, &client->dev); - if (!of_id) + if (!dev_fwnode(dev)) chip_id = id->driver_data; else - chip_id = (unsigned long)of_id->data; + chip_id = (unsigned long)device_get_match_data(dev); i2c_set_clientdata(client, indio_dev); data->client = client; @@ -383,13 +381,13 @@ static int vz89x_probe(struct i2c_client *client, mutex_init(&data->lock); indio_dev->info = &vz89x_info; - indio_dev->name = dev_name(&client->dev); + indio_dev->name = dev_name(dev); indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->channels = data->chip->channels; indio_dev->num_channels = data->chip->num_channels; - return devm_iio_device_register(&client->dev, indio_dev); + return devm_iio_device_register(dev, indio_dev); } static const struct i2c_device_id vz89x_id[] = { @@ -402,7 +400,7 @@ MODULE_DEVICE_TABLE(i2c, vz89x_id); static struct i2c_driver vz89x_driver = { .driver = { .name = "vz89x", - .of_match_table = of_match_ptr(vz89x_dt_ids), + .of_match_table = vz89x_dt_ids, }, .probe = vz89x_probe, .id_table = vz89x_id, diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c b/drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c index af801e203623..752f59037715 100644 --- a/drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c +++ b/drivers/iio/common/cros_ec_sensors/cros_ec_lid_angle.c @@ -97,7 +97,8 @@ static int cros_ec_lid_angle_probe(struct platform_device *pdev) if (!indio_dev) return -ENOMEM; - ret = cros_ec_sensors_core_init(pdev, indio_dev, false, NULL, NULL); + ret = cros_ec_sensors_core_init(pdev, indio_dev, false, NULL, + NULL, false); if (ret) return ret; diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c index 130ab8ce0269..57038ca48d93 100644 --- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c +++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors.c @@ -236,12 +236,11 @@ static int cros_ec_sensors_probe(struct platform_device *pdev) ret = cros_ec_sensors_core_init(pdev, indio_dev, true, cros_ec_sensors_capture, - cros_ec_sensors_push_data); + cros_ec_sensors_push_data, + true); if (ret) return ret; - iio_buffer_set_attrs(indio_dev->buffer, cros_ec_sensor_fifo_attributes); - indio_dev->info = &ec_sensors_info; state = iio_priv(indio_dev); for (channel = state->channels, i = CROS_EC_SENSOR_X; diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c index 1bc6efa47316..c62cacc04672 100644 --- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c +++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c @@ -177,12 +177,11 @@ static ssize_t hwfifo_watermark_max_show(struct device *dev, static IIO_DEVICE_ATTR_RO(hwfifo_watermark_max, 0); -const struct attribute *cros_ec_sensor_fifo_attributes[] = { +static const struct attribute *cros_ec_sensor_fifo_attributes[] = { &iio_dev_attr_hwfifo_timeout.dev_attr.attr, &iio_dev_attr_hwfifo_watermark_max.dev_attr.attr, NULL, }; -EXPORT_SYMBOL_GPL(cros_ec_sensor_fifo_attributes); int cros_ec_sensors_push_data(struct iio_dev *indio_dev, s16 *data, @@ -241,6 +240,7 @@ static void cros_ec_sensors_core_clean(void *arg) * for backward compatibility. * @push_data: function to call when cros_ec_sensorhub receives * a sample for that sensor. + * @has_hw_fifo: Set true if this device has/uses a HW FIFO * * Return: 0 on success, -errno on failure. */ @@ -248,7 +248,8 @@ int cros_ec_sensors_core_init(struct platform_device *pdev, struct iio_dev *indio_dev, bool physical_device, cros_ec_sensors_capture_t trigger_capture, - cros_ec_sensorhub_push_data_cb_t push_data) + cros_ec_sensorhub_push_data_cb_t push_data, + bool has_hw_fifo) { struct device *dev = &pdev->dev; struct cros_ec_sensors_core_state *state = iio_priv(indio_dev); @@ -361,6 +362,10 @@ int cros_ec_sensors_core_init(struct platform_device *pdev, NULL); if (ret) return ret; + + if (has_hw_fifo) + iio_buffer_set_attrs(indio_dev->buffer, + cros_ec_sensor_fifo_attributes); } } diff --git a/drivers/iio/common/ssp_sensors/ssp_dev.c b/drivers/iio/common/ssp_sensors/ssp_dev.c index a94dbcf491ce..1aee87100038 100644 --- a/drivers/iio/common/ssp_sensors/ssp_dev.c +++ b/drivers/iio/common/ssp_sensors/ssp_dev.c @@ -503,7 +503,8 @@ static int ssp_probe(struct spi_device *spi) return -ENODEV; } - ret = mfd_add_devices(&spi->dev, -1, sensorhub_sensor_devs, + ret = mfd_add_devices(&spi->dev, PLATFORM_DEVID_NONE, + sensorhub_sensor_devs, ARRAY_SIZE(sensorhub_sensor_devs), NULL, 0, NULL); if (ret < 0) { dev_err(&spi->dev, "mfd add devices fail\n"); diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c index fef503f8012d..82abd4d6886c 100644 --- a/drivers/iio/dac/ad5064.c +++ b/drivers/iio/dac/ad5064.c @@ -68,8 +68,8 @@ enum ad5064_regmap_type { * struct ad5064_chip_info - chip specific information * @shared_vref: whether the vref supply is shared between channels * @internal_vref: internal reference voltage. 0 if the chip has no - internal vref. - * @channel: channel specification + * internal vref. + * @channels: channel specification * @num_channels: number of channels * @regmap_type: register map layout variant */ @@ -98,6 +98,7 @@ typedef int (*ad5064_write_func)(struct ad5064_state *st, unsigned int cmd, * @use_internal_vref: set to true if the internal reference voltage should be * used. * @write: register write callback + * @lock: maintain consistency between cached and dev state * @data: i2c/spi transfer buffers */ @@ -111,7 +112,6 @@ struct ad5064_state { bool use_internal_vref; ad5064_write_func write; - /* Lock used to maintain consistency between cached and dev state */ struct mutex lock; /* diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c index 935a6177569f..d87e21016863 100644 --- a/drivers/iio/dac/ad5446.c +++ b/drivers/iio/dac/ad5446.c @@ -17,6 +17,7 @@ #include <linux/regulator/consumer.h> #include <linux/err.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> @@ -478,13 +479,11 @@ static const struct spi_device_id ad5446_spi_ids[] = { }; MODULE_DEVICE_TABLE(spi, ad5446_spi_ids); -#ifdef CONFIG_OF static const struct of_device_id ad5446_of_ids[] = { { .compatible = "ti,dac7512" }, { } }; MODULE_DEVICE_TABLE(of, ad5446_of_ids); -#endif static int ad5446_spi_probe(struct spi_device *spi) { @@ -502,7 +501,7 @@ static int ad5446_spi_remove(struct spi_device *spi) static struct spi_driver ad5446_spi_driver = { .driver = { .name = "ad5446", - .of_match_table = of_match_ptr(ad5446_of_ids), + .of_match_table = ad5446_of_ids, }, .probe = ad5446_spi_probe, .remove = ad5446_spi_remove, diff --git a/drivers/iio/dac/ad5592r-base.c b/drivers/iio/dac/ad5592r-base.c index 1fd75c02a7cd..0405e92b9e8c 100644 --- a/drivers/iio/dac/ad5592r-base.c +++ b/drivers/iio/dac/ad5592r-base.c @@ -374,36 +374,36 @@ static int ad5592r_read_raw(struct iio_dev *iio_dev, { struct ad5592r_state *st = iio_priv(iio_dev); u16 read_val; - int ret; + int ret, mult; switch (m) { case IIO_CHAN_INFO_RAW: - mutex_lock(&st->lock); - if (!chan->output) { + mutex_lock(&st->lock); ret = st->ops->read_adc(st, chan->channel, &read_val); + mutex_unlock(&st->lock); if (ret) - goto unlock; + return ret; if ((read_val >> 12 & 0x7) != (chan->channel & 0x7)) { dev_err(st->dev, "Error while reading channel %u\n", chan->channel); - ret = -EIO; - goto unlock; + return -EIO; } read_val &= GENMASK(11, 0); } else { + mutex_lock(&st->lock); read_val = st->cached_dac[chan->channel]; + mutex_unlock(&st->lock); } dev_dbg(st->dev, "Channel %u read: 0x%04hX\n", chan->channel, read_val); *val = (int) read_val; - ret = IIO_VAL_INT; - break; + return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: *val = ad5592r_get_vref(st); @@ -412,24 +412,24 @@ static int ad5592r_read_raw(struct iio_dev *iio_dev, *val = div_s64_rem(tmp, 1000000000LL, val2); return IIO_VAL_INT_PLUS_MICRO; - } else { - int mult; + } - mutex_lock(&st->lock); + mutex_lock(&st->lock); - if (chan->output) - mult = !!(st->cached_gp_ctrl & - AD5592R_REG_CTRL_DAC_RANGE); - else - mult = !!(st->cached_gp_ctrl & - AD5592R_REG_CTRL_ADC_RANGE); + if (chan->output) + mult = !!(st->cached_gp_ctrl & + AD5592R_REG_CTRL_DAC_RANGE); + else + mult = !!(st->cached_gp_ctrl & + AD5592R_REG_CTRL_ADC_RANGE); - *val *= ++mult; + mutex_unlock(&st->lock); - *val2 = chan->scan_type.realbits; - ret = IIO_VAL_FRACTIONAL_LOG2; - } - break; + *val *= ++mult; + + *val2 = chan->scan_type.realbits; + + return IIO_VAL_FRACTIONAL_LOG2; case IIO_CHAN_INFO_OFFSET: ret = ad5592r_get_vref(st); @@ -439,15 +439,13 @@ static int ad5592r_read_raw(struct iio_dev *iio_dev, *val = (-34365 * 25) / ret; else *val = (-75365 * 25) / ret; - ret = IIO_VAL_INT; - break; + + mutex_unlock(&st->lock); + + return IIO_VAL_INT; default: return -EINVAL; } - -unlock: - mutex_unlock(&st->lock); - return ret; } static int ad5592r_write_raw_get_fmt(struct iio_dev *indio_dev, @@ -486,7 +484,7 @@ static const struct iio_chan_spec_ext_info ad5592r_ext_info[] = { { .name = "scale_available", .read = ad5592r_show_scale_available, - .shared = true, + .shared = IIO_SHARED_BY_TYPE, }, {}, }; diff --git a/drivers/iio/dac/ad5592r.c b/drivers/iio/dac/ad5592r.c index 49308ad13c4b..41f651500668 100644 --- a/drivers/iio/dac/ad5592r.c +++ b/drivers/iio/dac/ad5592r.c @@ -10,9 +10,8 @@ #include <linux/bitops.h> #include <linux/module.h> -#include <linux/of.h> +#include <linux/mod_devicetable.h> #include <linux/spi/spi.h> -#include <linux/acpi.h> #define AD5592R_GPIO_READBACK_EN BIT(10) #define AD5592R_LDAC_READBACK_EN BIT(6) @@ -157,8 +156,8 @@ MODULE_DEVICE_TABLE(acpi, ad5592r_acpi_match); static struct spi_driver ad5592r_spi_driver = { .driver = { .name = "ad5592r", - .of_match_table = of_match_ptr(ad5592r_of_match), - .acpi_match_table = ACPI_PTR(ad5592r_acpi_match), + .of_match_table = ad5592r_of_match, + .acpi_match_table = ad5592r_acpi_match, }, .probe = ad5592r_spi_probe, .remove = ad5592r_spi_remove, diff --git a/drivers/iio/dac/ad5593r.c b/drivers/iio/dac/ad5593r.c index 1fbe9c019c7f..5b4df36fdc2a 100644 --- a/drivers/iio/dac/ad5593r.c +++ b/drivers/iio/dac/ad5593r.c @@ -11,8 +11,7 @@ #include <linux/bitops.h> #include <linux/i2c.h> #include <linux/module.h> -#include <linux/of.h> -#include <linux/acpi.h> +#include <linux/mod_devicetable.h> #define AD5593R_MODE_CONF (0 << 4) #define AD5593R_MODE_DAC_WRITE (1 << 4) @@ -124,8 +123,8 @@ MODULE_DEVICE_TABLE(acpi, ad5593r_acpi_match); static struct i2c_driver ad5593r_driver = { .driver = { .name = "ad5593r", - .of_match_table = of_match_ptr(ad5593r_of_match), - .acpi_match_table = ACPI_PTR(ad5593r_acpi_match), + .of_match_table = ad5593r_of_match, + .acpi_match_table = ad5593r_acpi_match, }, .probe = ad5593r_i2c_probe, .remove = ad5593r_i2c_remove, diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c index 56cf9344d187..148d9541f517 100644 --- a/drivers/iio/dac/ad5686.c +++ b/drivers/iio/dac/ad5686.c @@ -206,12 +206,12 @@ static const struct iio_chan_spec_ext_info ad5686_ext_info[] = { } #define DECLARE_AD5693_CHANNELS(name, bits, _shift) \ -static struct iio_chan_spec name[] = { \ +static const struct iio_chan_spec name[] = { \ AD5868_CHANNEL(0, 0, bits, _shift), \ } #define DECLARE_AD5686_CHANNELS(name, bits, _shift) \ -static struct iio_chan_spec name[] = { \ +static const struct iio_chan_spec name[] = { \ AD5868_CHANNEL(0, 1, bits, _shift), \ AD5868_CHANNEL(1, 2, bits, _shift), \ AD5868_CHANNEL(2, 4, bits, _shift), \ @@ -219,7 +219,7 @@ static struct iio_chan_spec name[] = { \ } #define DECLARE_AD5676_CHANNELS(name, bits, _shift) \ -static struct iio_chan_spec name[] = { \ +static const struct iio_chan_spec name[] = { \ AD5868_CHANNEL(0, 0, bits, _shift), \ AD5868_CHANNEL(1, 1, bits, _shift), \ AD5868_CHANNEL(2, 2, bits, _shift), \ @@ -231,7 +231,7 @@ static struct iio_chan_spec name[] = { \ } #define DECLARE_AD5679_CHANNELS(name, bits, _shift) \ -static struct iio_chan_spec name[] = { \ +static const struct iio_chan_spec name[] = { \ AD5868_CHANNEL(0, 0, bits, _shift), \ AD5868_CHANNEL(1, 1, bits, _shift), \ AD5868_CHANNEL(2, 2, bits, _shift), \ diff --git a/drivers/iio/dac/ad5686.h b/drivers/iio/dac/ad5686.h index 52009b5eef88..a15f2970577e 100644 --- a/drivers/iio/dac/ad5686.h +++ b/drivers/iio/dac/ad5686.h @@ -104,7 +104,7 @@ typedef int (*ad5686_read_func)(struct ad5686_state *st, u8 addr); struct ad5686_chip_info { u16 int_vref_mv; unsigned int num_channels; - struct iio_chan_spec *channels; + const struct iio_chan_spec *channels; enum ad5686_regmap_type regmap_type; }; diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c index 4460aa57a33f..2e46def9d8ee 100644 --- a/drivers/iio/dac/ad7303.c +++ b/drivers/iio/dac/ad7303.c @@ -7,6 +7,7 @@ #include <linux/err.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/kernel.h> #include <linux/spi/spi.h> #include <linux/slab.h> @@ -29,6 +30,9 @@ * @spi: the device for this driver instance * @config: cached config register value * @dac_cache: current DAC raw value (chip does not support readback) + * @vdd_reg: reference to VDD regulator + * @vref_reg: reference to VREF regulator + * @lock: protect writes and cache updates * @data: spi transfer buffer */ @@ -287,7 +291,7 @@ MODULE_DEVICE_TABLE(spi, ad7303_spi_ids); static struct spi_driver ad7303_driver = { .driver = { .name = "ad7303", - .of_match_table = of_match_ptr(ad7303_spi_of_match), + .of_match_table = ad7303_spi_of_match, }, .probe = ad7303_probe, .remove = ad7303_remove, diff --git a/drivers/iio/dac/dpot-dac.c b/drivers/iio/dac/dpot-dac.c index 1a9609eda5c5..5d1819448102 100644 --- a/drivers/iio/dac/dpot-dac.c +++ b/drivers/iio/dac/dpot-dac.c @@ -184,18 +184,14 @@ static int dpot_dac_probe(struct platform_device *pdev) indio_dev->num_channels = 1; dac->vref = devm_regulator_get(dev, "vref"); - if (IS_ERR(dac->vref)) { - if (PTR_ERR(dac->vref) != -EPROBE_DEFER) - dev_err(&pdev->dev, "failed to get vref regulator\n"); - return PTR_ERR(dac->vref); - } + if (IS_ERR(dac->vref)) + return dev_err_probe(&pdev->dev, PTR_ERR(dac->vref), + "failed to get vref regulator\n"); dac->dpot = devm_iio_channel_get(dev, "dpot"); - if (IS_ERR(dac->dpot)) { - if (PTR_ERR(dac->dpot) != -EPROBE_DEFER) - dev_err(dev, "failed to get dpot input channel\n"); - return PTR_ERR(dac->dpot); - } + if (IS_ERR(dac->dpot)) + return dev_err_probe(&pdev->dev, PTR_ERR(dac->dpot), + "failed to get dpot input channel\n"); ret = iio_get_channel_type(dac->dpot, &type); if (ret < 0) diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c index ee174d224110..beb9a15b7c74 100644 --- a/drivers/iio/dac/mcp4725.c +++ b/drivers/iio/dac/mcp4725.c @@ -16,8 +16,8 @@ #include <linux/err.h> #include <linux/delay.h> #include <linux/regulator/consumer.h> -#include <linux/of_device.h> -#include <linux/of.h> +#include <linux/mod_devicetable.h> +#include <linux/property.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> @@ -357,29 +357,16 @@ static const struct iio_info mcp4725_info = { .attrs = &mcp4725_attribute_group, }; -#ifdef CONFIG_OF static int mcp4725_probe_dt(struct device *dev, struct mcp4725_platform_data *pdata) { - struct device_node *np = dev->of_node; - - if (!np) - return -ENODEV; - /* check if is the vref-supply defined */ - pdata->use_vref = of_property_read_bool(np, "vref-supply"); + pdata->use_vref = device_property_read_bool(dev, "vref-supply"); pdata->vref_buffered = - of_property_read_bool(np, "microchip,vref-buffered"); + device_property_read_bool(dev, "microchip,vref-buffered"); return 0; } -#else -static int mcp4725_probe_dt(struct device *dev, - struct mcp4725_platform_data *platform_data) -{ - return -ENODEV; -} -#endif static int mcp4725_probe(struct i2c_client *client, const struct i2c_device_id *id) @@ -398,8 +385,8 @@ static int mcp4725_probe(struct i2c_client *client, data = iio_priv(indio_dev); i2c_set_clientdata(client, indio_dev); data->client = client; - if (client->dev.of_node) - data->id = (enum chip_id)of_device_get_match_data(&client->dev); + if (dev_fwnode(&client->dev)) + data->id = (enum chip_id)device_get_match_data(&client->dev); else data->id = id->driver_data; pdata = dev_get_platdata(&client->dev); @@ -519,7 +506,6 @@ static const struct i2c_device_id mcp4725_id[] = { }; MODULE_DEVICE_TABLE(i2c, mcp4725_id); -#ifdef CONFIG_OF static const struct of_device_id mcp4725_of_match[] = { { .compatible = "microchip,mcp4725", @@ -532,12 +518,11 @@ static const struct of_device_id mcp4725_of_match[] = { { } }; MODULE_DEVICE_TABLE(of, mcp4725_of_match); -#endif static struct i2c_driver mcp4725_driver = { .driver = { .name = MCP4725_DRV_NAME, - .of_match_table = of_match_ptr(mcp4725_of_match), + .of_match_table = mcp4725_of_match, .pm = &mcp4725_pm_ops, }, .probe = mcp4725_probe, diff --git a/drivers/iio/dac/stm32-dac-core.c b/drivers/iio/dac/stm32-dac-core.c index 7e5809ba0dee..906436780347 100644 --- a/drivers/iio/dac/stm32-dac-core.c +++ b/drivers/iio/dac/stm32-dac-core.c @@ -150,10 +150,7 @@ static int stm32_dac_probe(struct platform_device *pdev) rst = devm_reset_control_get_optional_exclusive(dev, NULL); if (rst) { if (IS_ERR(rst)) { - ret = PTR_ERR(rst); - if (ret != -EPROBE_DEFER) - dev_err(dev, "reset get failed, %d\n", ret); - + ret = dev_err_probe(dev, PTR_ERR(rst), "reset get failed\n"); goto err_hw_stop; } diff --git a/drivers/iio/dac/stm32-dac.c b/drivers/iio/dac/stm32-dac.c index 092c796fa3d9..12dec68c16f7 100644 --- a/drivers/iio/dac/stm32-dac.c +++ b/drivers/iio/dac/stm32-dac.c @@ -26,9 +26,12 @@ /** * struct stm32_dac - private data of DAC driver * @common: reference to DAC common data + * @lock: lock to protect against potential races when reading + * and update CR, to keep it in sync with pm_runtime */ struct stm32_dac { struct stm32_dac_common *common; + struct mutex lock; }; static int stm32_dac_is_enabled(struct iio_dev *indio_dev, int channel) @@ -58,10 +61,10 @@ static int stm32_dac_set_enable_state(struct iio_dev *indio_dev, int ch, int ret; /* already enabled / disabled ? */ - mutex_lock(&indio_dev->mlock); + mutex_lock(&dac->lock); ret = stm32_dac_is_enabled(indio_dev, ch); if (ret < 0 || enable == !!ret) { - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&dac->lock); return ret < 0 ? ret : 0; } @@ -69,13 +72,13 @@ static int stm32_dac_set_enable_state(struct iio_dev *indio_dev, int ch, ret = pm_runtime_get_sync(dev); if (ret < 0) { pm_runtime_put_noidle(dev); - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&dac->lock); return ret; } } ret = regmap_update_bits(dac->common->regmap, STM32_DAC_CR, msk, en); - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&dac->lock); if (ret < 0) { dev_err(&indio_dev->dev, "%s failed\n", en ? "Enable" : "Disable"); @@ -327,6 +330,8 @@ static int stm32_dac_probe(struct platform_device *pdev) indio_dev->info = &stm32_dac_iio_info; indio_dev->modes = INDIO_DIRECT_MODE; + mutex_init(&dac->lock); + ret = stm32_dac_chan_of_init(indio_dev); if (ret < 0) return ret; diff --git a/drivers/iio/dac/ti-dac082s085.c b/drivers/iio/dac/ti-dac082s085.c index 86bfb1c3f9b9..de33c1fc6e0b 100644 --- a/drivers/iio/dac/ti-dac082s085.c +++ b/drivers/iio/dac/ti-dac082s085.c @@ -14,6 +14,7 @@ #include <linux/iio/iio.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/regulator/consumer.h> #include <linux/spi/spi.h> @@ -324,7 +325,6 @@ static int ti_dac_remove(struct spi_device *spi) return 0; } -#ifdef CONFIG_OF static const struct of_device_id ti_dac_of_id[] = { { .compatible = "ti,dac082s085" }, { .compatible = "ti,dac102s085" }, @@ -335,7 +335,6 @@ static const struct of_device_id ti_dac_of_id[] = { { } }; MODULE_DEVICE_TABLE(of, ti_dac_of_id); -#endif static const struct spi_device_id ti_dac_spi_id[] = { { "dac082s085", dual_8bit }, @@ -351,7 +350,7 @@ MODULE_DEVICE_TABLE(spi, ti_dac_spi_id); static struct spi_driver ti_dac_driver = { .driver = { .name = "ti-dac082s085", - .of_match_table = of_match_ptr(ti_dac_of_id), + .of_match_table = ti_dac_of_id, }, .probe = ti_dac_probe, .remove = ti_dac_remove, diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c index 00fc7db8eb65..d3295767a079 100644 --- a/drivers/iio/dac/ti-dac5571.c +++ b/drivers/iio/dac/ti-dac5571.c @@ -18,8 +18,7 @@ #include <linux/iio/iio.h> #include <linux/i2c.h> #include <linux/module.h> -#include <linux/of_device.h> -#include <linux/of.h> +#include <linux/mod_devicetable.h> #include <linux/regulator/consumer.h> enum chip_id { @@ -47,8 +46,8 @@ struct dac5571_data { struct mutex lock; struct regulator *vref; u16 val[4]; - bool powerdown; - u8 powerdown_mode; + bool powerdown[4]; + u8 powerdown_mode[4]; struct dac5571_spec const *spec; int (*dac5571_cmd)(struct dac5571_data *data, int channel, u16 val); int (*dac5571_pwrdwn)(struct dac5571_data *data, int channel, u8 pwrdwn); @@ -125,7 +124,7 @@ static int dac5571_get_powerdown_mode(struct iio_dev *indio_dev, { struct dac5571_data *data = iio_priv(indio_dev); - return data->powerdown_mode; + return data->powerdown_mode[chan->channel]; } static int dac5571_set_powerdown_mode(struct iio_dev *indio_dev, @@ -135,17 +134,17 @@ static int dac5571_set_powerdown_mode(struct iio_dev *indio_dev, struct dac5571_data *data = iio_priv(indio_dev); int ret = 0; - if (data->powerdown_mode == mode) + if (data->powerdown_mode[chan->channel] == mode) return 0; mutex_lock(&data->lock); - if (data->powerdown) { + if (data->powerdown[chan->channel]) { ret = data->dac5571_pwrdwn(data, chan->channel, DAC5571_POWERDOWN(mode)); if (ret) goto out; } - data->powerdown_mode = mode; + data->powerdown_mode[chan->channel] = mode; out: mutex_unlock(&data->lock); @@ -167,7 +166,7 @@ static ssize_t dac5571_read_powerdown(struct iio_dev *indio_dev, { struct dac5571_data *data = iio_priv(indio_dev); - return sprintf(buf, "%d\n", data->powerdown); + return sprintf(buf, "%d\n", data->powerdown[chan->channel]); } static ssize_t dac5571_write_powerdown(struct iio_dev *indio_dev, @@ -183,19 +182,20 @@ static ssize_t dac5571_write_powerdown(struct iio_dev *indio_dev, if (ret) return ret; - if (data->powerdown == powerdown) + if (data->powerdown[chan->channel] == powerdown) return len; mutex_lock(&data->lock); if (powerdown) ret = data->dac5571_pwrdwn(data, chan->channel, - DAC5571_POWERDOWN(data->powerdown_mode)); + DAC5571_POWERDOWN(data->powerdown_mode[chan->channel])); else - ret = data->dac5571_cmd(data, chan->channel, data->val[0]); + ret = data->dac5571_cmd(data, chan->channel, + data->val[chan->channel]); if (ret) goto out; - data->powerdown = powerdown; + data->powerdown[chan->channel] = powerdown; out: mutex_unlock(&data->lock); @@ -209,9 +209,9 @@ static const struct iio_chan_spec_ext_info dac5571_ext_info[] = { .name = "powerdown", .read = dac5571_read_powerdown, .write = dac5571_write_powerdown, - .shared = IIO_SHARED_BY_TYPE, + .shared = IIO_SEPARATE, }, - IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE, &dac5571_powerdown_mode), + IIO_ENUM("powerdown_mode", IIO_SEPARATE, &dac5571_powerdown_mode), IIO_ENUM_AVAILABLE("powerdown_mode", &dac5571_powerdown_mode), {}, }; @@ -276,7 +276,7 @@ static int dac5571_write_raw(struct iio_dev *indio_dev, if (val >= (1 << data->spec->resolution) || val < 0) return -EINVAL; - if (data->powerdown) + if (data->powerdown[chan->channel]) return -EBUSY; mutex_lock(&data->lock); @@ -383,7 +383,6 @@ static int dac5571_remove(struct i2c_client *i2c) return 0; } -#ifdef CONFIG_OF static const struct of_device_id dac5571_of_id[] = { {.compatible = "ti,dac5571"}, {.compatible = "ti,dac6571"}, @@ -397,7 +396,6 @@ static const struct of_device_id dac5571_of_id[] = { {} }; MODULE_DEVICE_TABLE(of, dac5571_of_id); -#endif static const struct i2c_device_id dac5571_id[] = { {"dac5571", single_8bit}, @@ -416,7 +414,7 @@ MODULE_DEVICE_TABLE(i2c, dac5571_id); static struct i2c_driver dac5571_driver = { .driver = { .name = "ti-dac5571", - .of_match_table = of_match_ptr(dac5571_of_id), + .of_match_table = dac5571_of_id, }, .probe = dac5571_probe, .remove = dac5571_remove, diff --git a/drivers/iio/dac/ti-dac7612.c b/drivers/iio/dac/ti-dac7612.c index 07c9f39d54f1..4c0f4b5e9ff4 100644 --- a/drivers/iio/dac/ti-dac7612.c +++ b/drivers/iio/dac/ti-dac7612.c @@ -23,6 +23,14 @@ struct dac7612 { uint16_t cache[2]; /* + * Lock to protect the state of the device from potential concurrent + * write accesses from userspace. The write operation requires an + * SPI write, then toggling of a GPIO, so the lock aims to protect + * the sanity of the entire sequence of operation. + */ + struct mutex lock; + + /* * DMA (thus cache coherency maintenance) requires the * transfer buffers to live in their own cache lines. */ @@ -101,9 +109,9 @@ static int dac7612_write_raw(struct iio_dev *iio_dev, if (val == priv->cache[chan->channel]) return 0; - mutex_lock(&iio_dev->mlock); + mutex_lock(&priv->lock); ret = dac7612_cmd_single(priv, chan->channel, val); - mutex_unlock(&iio_dev->mlock); + mutex_unlock(&priv->lock); return ret; } @@ -145,6 +153,8 @@ static int dac7612_probe(struct spi_device *spi) iio_dev->num_channels = ARRAY_SIZE(priv->cache); iio_dev->name = spi_get_device_id(spi)->name; + mutex_init(&priv->lock); + for (i = 0; i < ARRAY_SIZE(priv->cache); i++) { ret = dac7612_cmd_single(priv, i, 0); if (ret) diff --git a/drivers/iio/dummy/iio_dummy_evgen.c b/drivers/iio/dummy/iio_dummy_evgen.c index ee85d596e528..5a0072727ba4 100644 --- a/drivers/iio/dummy/iio_dummy_evgen.c +++ b/drivers/iio/dummy/iio_dummy_evgen.c @@ -1,5 +1,5 @@ // SPDX-License-Identifier: GPL-2.0-only -/** +/* * Copyright (c) 2011 Jonathan Cameron * * Companion module to the iio simple dummy example driver. @@ -27,11 +27,13 @@ #define IIO_EVENTGEN_NO 10 /** + * struct iio_dummy_eventgen - event generator specific state * @regs: irq regs we are faking * @lock: protect the evgen state * @inuse: mask of which irqs are connected * @irq_sim: interrupt simulator * @base: base of irq range + * @irq_sim_domain: irq simulator domain */ struct iio_dummy_eventgen { struct iio_dummy_regs regs[IIO_EVENTGEN_NO]; diff --git a/drivers/iio/frequency/ad9523.c b/drivers/iio/frequency/ad9523.c index 334e1d779d6d..bdb0bc3b12dd 100644 --- a/drivers/iio/frequency/ad9523.c +++ b/drivers/iio/frequency/ad9523.c @@ -969,6 +969,13 @@ static int ad9523_setup(struct iio_dev *indio_dev) return 0; } +static void ad9523_reg_disable(void *data) +{ + struct regulator *reg = data; + + regulator_disable(reg); +} + static int ad9523_probe(struct spi_device *spi) { struct ad9523_platform_data *pdata = spi->dev.platform_data; @@ -994,21 +1001,22 @@ static int ad9523_probe(struct spi_device *spi) ret = regulator_enable(st->reg); if (ret) return ret; + + ret = devm_add_action_or_reset(&spi->dev, ad9523_reg_disable, + st->reg); + if (ret) + return ret; } st->pwrdown_gpio = devm_gpiod_get_optional(&spi->dev, "powerdown", GPIOD_OUT_HIGH); - if (IS_ERR(st->pwrdown_gpio)) { - ret = PTR_ERR(st->pwrdown_gpio); - goto error_disable_reg; - } + if (IS_ERR(st->pwrdown_gpio)) + return PTR_ERR(st->pwrdown_gpio); st->reset_gpio = devm_gpiod_get_optional(&spi->dev, "reset", GPIOD_OUT_LOW); - if (IS_ERR(st->reset_gpio)) { - ret = PTR_ERR(st->reset_gpio); - goto error_disable_reg; - } + if (IS_ERR(st->reset_gpio)) + return PTR_ERR(st->reset_gpio); if (st->reset_gpio) { udelay(1); @@ -1017,10 +1025,8 @@ static int ad9523_probe(struct spi_device *spi) st->sync_gpio = devm_gpiod_get_optional(&spi->dev, "sync", GPIOD_OUT_HIGH); - if (IS_ERR(st->sync_gpio)) { - ret = PTR_ERR(st->sync_gpio); - goto error_disable_reg; - } + if (IS_ERR(st->sync_gpio)) + return PTR_ERR(st->sync_gpio); spi_set_drvdata(spi, indio_dev); st->spi = spi; @@ -1035,34 +1041,9 @@ static int ad9523_probe(struct spi_device *spi) ret = ad9523_setup(indio_dev); if (ret < 0) - goto error_disable_reg; - - ret = iio_device_register(indio_dev); - if (ret) - goto error_disable_reg; - - dev_info(&spi->dev, "probed %s\n", indio_dev->name); - - return 0; - -error_disable_reg: - if (!IS_ERR(st->reg)) - regulator_disable(st->reg); - - return ret; -} - -static int ad9523_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct ad9523_state *st = iio_priv(indio_dev); - - iio_device_unregister(indio_dev); - - if (!IS_ERR(st->reg)) - regulator_disable(st->reg); + return ret; - return 0; + return devm_iio_device_register(&spi->dev, indio_dev); } static const struct spi_device_id ad9523_id[] = { @@ -1076,7 +1057,6 @@ static struct spi_driver ad9523_driver = { .name = "ad9523", }, .probe = ad9523_probe, - .remove = ad9523_remove, .id_table = ad9523_id, }; module_spi_driver(ad9523_driver); diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c index 409c9c47161e..82c050a3899d 100644 --- a/drivers/iio/frequency/adf4350.c +++ b/drivers/iio/frequency/adf4350.c @@ -48,6 +48,13 @@ struct adf4350_state { unsigned long regs_hw[6]; unsigned long long freq_req; /* + * Lock to protect the state of the device from potential concurrent + * writes. The device is configured via a sequence of SPI writes, + * and this lock is meant to prevent the start of another sequence + * before another one has finished. + */ + struct mutex lock; + /* * DMA (thus cache coherency maintenance) requires the * transfer buffers to live in their own cache lines. */ @@ -99,7 +106,7 @@ static int adf4350_reg_access(struct iio_dev *indio_dev, if (reg > ADF4350_REG5) return -EINVAL; - mutex_lock(&indio_dev->mlock); + mutex_lock(&st->lock); if (readval == NULL) { st->regs[reg] = writeval & ~(BIT(0) | BIT(1) | BIT(2)); ret = adf4350_sync_config(st); @@ -107,7 +114,7 @@ static int adf4350_reg_access(struct iio_dev *indio_dev, *readval = st->regs_hw[reg]; ret = 0; } - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&st->lock); return ret; } @@ -254,7 +261,7 @@ static ssize_t adf4350_write(struct iio_dev *indio_dev, if (ret) return ret; - mutex_lock(&indio_dev->mlock); + mutex_lock(&st->lock); switch ((u32)private) { case ADF4350_FREQ: ret = adf4350_set_freq(st, readin); @@ -295,7 +302,7 @@ static ssize_t adf4350_write(struct iio_dev *indio_dev, default: ret = -EINVAL; } - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&st->lock); return ret ? ret : len; } @@ -309,7 +316,7 @@ static ssize_t adf4350_read(struct iio_dev *indio_dev, unsigned long long val; int ret = 0; - mutex_lock(&indio_dev->mlock); + mutex_lock(&st->lock); switch ((u32)private) { case ADF4350_FREQ: val = (u64)((st->r0_int * st->r1_mod) + st->r0_fract) * @@ -338,7 +345,7 @@ static ssize_t adf4350_read(struct iio_dev *indio_dev, ret = -EINVAL; val = 0; } - mutex_unlock(&indio_dev->mlock); + mutex_unlock(&st->lock); return ret < 0 ? ret : sprintf(buf, "%llu\n", val); } @@ -539,6 +546,8 @@ static int adf4350_probe(struct spi_device *spi) indio_dev->channels = &adf4350_chan; indio_dev->num_channels = 1; + mutex_init(&st->lock); + st->chspc = pdata->channel_spacing; if (clk) { st->clk = clk; diff --git a/drivers/iio/gyro/Kconfig b/drivers/iio/gyro/Kconfig index 6daeddf37f60..5824f2edf975 100644 --- a/drivers/iio/gyro/Kconfig +++ b/drivers/iio/gyro/Kconfig @@ -41,6 +41,18 @@ config ADIS16260 This driver can also be built as a module. If so, the module will be called adis16260. +config ADXRS290 + tristate "Analog Devices ADXRS290 Dual-Axis MEMS Gyroscope SPI driver" + depends on SPI + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER + help + Say yes here to build support for Analog Devices ADXRS290 programmable + digital output gyroscope. + + This driver can also be built as a module. If so, the module will be + called adxrs290. + config ADXRS450 tristate "Analog Devices ADXRS450/3 Digital Output Gyroscope SPI driver" depends on SPI diff --git a/drivers/iio/gyro/Makefile b/drivers/iio/gyro/Makefile index 45cbd5dc644e..0319b397dc3f 100644 --- a/drivers/iio/gyro/Makefile +++ b/drivers/iio/gyro/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_ADIS16080) += adis16080.o obj-$(CONFIG_ADIS16130) += adis16130.o obj-$(CONFIG_ADIS16136) += adis16136.o obj-$(CONFIG_ADIS16260) += adis16260.o +obj-$(CONFIG_ADXRS290) += adxrs290.o obj-$(CONFIG_ADXRS450) += adxrs450.o obj-$(CONFIG_BMG160) += bmg160_core.o obj-$(CONFIG_BMG160_I2C) += bmg160_i2c.o diff --git a/drivers/iio/gyro/adis16080.c b/drivers/iio/gyro/adis16080.c index 6e5e2d98943c..e2f4d943e220 100644 --- a/drivers/iio/gyro/adis16080.c +++ b/drivers/iio/gyro/adis16080.c @@ -38,7 +38,7 @@ struct adis16080_chip_info { * @us: actual spi_device to write data * @info: chip specific parameters * @buf: transmit or receive buffer - * @lock lock to protect buffer during reads + * @lock: lock to protect buffer during reads **/ struct adis16080_state { struct spi_device *us; diff --git a/drivers/iio/gyro/adis16136.c b/drivers/iio/gyro/adis16136.c index d8a96f6bbae2..a11ae9db0d11 100644 --- a/drivers/iio/gyro/adis16136.c +++ b/drivers/iio/gyro/adis16136.c @@ -523,6 +523,11 @@ static const struct adis16136_chip_info adis16136_chip_info[] = { }, }; +static void adis16136_stop(void *data) +{ + adis16136_stop_device(data); +} + static int adis16136_probe(struct spi_device *spi) { const struct spi_device_id *id = spi_get_device_id(spi); @@ -552,38 +557,23 @@ static int adis16136_probe(struct spi_device *spi) if (ret) return ret; - ret = adis_setup_buffer_and_trigger(&adis16136->adis, indio_dev, NULL); + ret = devm_adis_setup_buffer_and_trigger(&adis16136->adis, indio_dev, NULL); if (ret) return ret; ret = adis16136_initial_setup(indio_dev); if (ret) - goto error_cleanup_buffer; + return ret; - ret = iio_device_register(indio_dev); + ret = devm_add_action_or_reset(&spi->dev, adis16136_stop, indio_dev); if (ret) - goto error_stop_device; - - adis16136_debugfs_init(indio_dev); - - return 0; - -error_stop_device: - adis16136_stop_device(indio_dev); -error_cleanup_buffer: - adis_cleanup_buffer_and_trigger(&adis16136->adis, indio_dev); - return ret; -} - -static int adis16136_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct adis16136 *adis16136 = iio_priv(indio_dev); + return ret; - iio_device_unregister(indio_dev); - adis16136_stop_device(indio_dev); + ret = devm_iio_device_register(&spi->dev, indio_dev); + if (ret) + return ret; - adis_cleanup_buffer_and_trigger(&adis16136->adis, indio_dev); + adis16136_debugfs_init(indio_dev); return 0; } @@ -603,7 +593,6 @@ static struct spi_driver adis16136_driver = { }, .id_table = adis16136_ids, .probe = adis16136_probe, - .remove = adis16136_remove, }; module_spi_driver(adis16136_driver); diff --git a/drivers/iio/gyro/adis16260.c b/drivers/iio/gyro/adis16260.c index e638d56e1574..e7c9a3e31c45 100644 --- a/drivers/iio/gyro/adis16260.c +++ b/drivers/iio/gyro/adis16260.c @@ -359,6 +359,11 @@ static const struct adis_data adis16260_data = { BIT(ADIS16260_DIAG_STAT_POWER_LOW_BIT), }; +static void adis16260_stop(void *data) +{ + adis16260_stop_device(data); +} + static int adis16260_probe(struct spi_device *spi) { const struct spi_device_id *id; @@ -390,35 +395,20 @@ static int adis16260_probe(struct spi_device *spi) if (ret) return ret; - ret = adis_setup_buffer_and_trigger(&adis16260->adis, indio_dev, NULL); + ret = devm_adis_setup_buffer_and_trigger(&adis16260->adis, indio_dev, NULL); if (ret) return ret; /* Get the device into a sane initial state */ ret = adis_initial_startup(&adis16260->adis); if (ret) - goto error_cleanup_buffer_trigger; - ret = iio_device_register(indio_dev); - if (ret) - goto error_cleanup_buffer_trigger; - - return 0; - -error_cleanup_buffer_trigger: - adis_cleanup_buffer_and_trigger(&adis16260->adis, indio_dev); - return ret; -} - -static int adis16260_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct adis16260 *adis16260 = iio_priv(indio_dev); + return ret; - iio_device_unregister(indio_dev); - adis16260_stop_device(indio_dev); - adis_cleanup_buffer_and_trigger(&adis16260->adis, indio_dev); + ret = devm_add_action_or_reset(&spi->dev, adis16260_stop, indio_dev); + if (ret) + return ret; - return 0; + return devm_iio_device_register(&spi->dev, indio_dev); } /* @@ -441,7 +431,6 @@ static struct spi_driver adis16260_driver = { .name = "adis16260", }, .probe = adis16260_probe, - .remove = adis16260_remove, .id_table = adis16260_id, }; module_spi_driver(adis16260_driver); diff --git a/drivers/iio/gyro/adxrs290.c b/drivers/iio/gyro/adxrs290.c new file mode 100644 index 000000000000..ca6fc234076e --- /dev/null +++ b/drivers/iio/gyro/adxrs290.c @@ -0,0 +1,710 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * ADXRS290 SPI Gyroscope Driver + * + * Copyright (C) 2020 Nishant Malpani <nish.malpani25@gmail.com> + * Copyright (C) 2020 Analog Devices, Inc. + */ + +#include <linux/bitfield.h> +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/spi/spi.h> + +#include <linux/iio/buffer.h> +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> +#include <linux/iio/trigger.h> +#include <linux/iio/triggered_buffer.h> +#include <linux/iio/trigger_consumer.h> + +#define ADXRS290_ADI_ID 0xAD +#define ADXRS290_MEMS_ID 0x1D +#define ADXRS290_DEV_ID 0x92 + +#define ADXRS290_REG_ADI_ID 0x00 +#define ADXRS290_REG_MEMS_ID 0x01 +#define ADXRS290_REG_DEV_ID 0x02 +#define ADXRS290_REG_REV_ID 0x03 +#define ADXRS290_REG_SN0 0x04 /* Serial Number Registers, 4 bytes */ +#define ADXRS290_REG_DATAX0 0x08 /* Roll Rate o/p Data Regs, 2 bytes */ +#define ADXRS290_REG_DATAY0 0x0A /* Pitch Rate o/p Data Regs, 2 bytes */ +#define ADXRS290_REG_TEMP0 0x0C +#define ADXRS290_REG_POWER_CTL 0x10 +#define ADXRS290_REG_FILTER 0x11 +#define ADXRS290_REG_DATA_RDY 0x12 + +#define ADXRS290_READ BIT(7) +#define ADXRS290_TSM BIT(0) +#define ADXRS290_MEASUREMENT BIT(1) +#define ADXRS290_DATA_RDY_OUT BIT(0) +#define ADXRS290_SYNC_MASK GENMASK(1, 0) +#define ADXRS290_SYNC(x) FIELD_PREP(ADXRS290_SYNC_MASK, x) +#define ADXRS290_LPF_MASK GENMASK(2, 0) +#define ADXRS290_LPF(x) FIELD_PREP(ADXRS290_LPF_MASK, x) +#define ADXRS290_HPF_MASK GENMASK(7, 4) +#define ADXRS290_HPF(x) FIELD_PREP(ADXRS290_HPF_MASK, x) + +#define ADXRS290_READ_REG(reg) (ADXRS290_READ | (reg)) + +#define ADXRS290_MAX_TRANSITION_TIME_MS 100 + +enum adxrs290_mode { + ADXRS290_MODE_STANDBY, + ADXRS290_MODE_MEASUREMENT, +}; + +enum adxrs290_scan_index { + ADXRS290_IDX_X, + ADXRS290_IDX_Y, + ADXRS290_IDX_TEMP, + ADXRS290_IDX_TS, +}; + +struct adxrs290_state { + struct spi_device *spi; + /* Serialize reads and their subsequent processing */ + struct mutex lock; + enum adxrs290_mode mode; + unsigned int lpf_3db_freq_idx; + unsigned int hpf_3db_freq_idx; + struct iio_trigger *dready_trig; + /* Ensure correct alignment of timestamp when present */ + struct { + s16 channels[3]; + s64 ts __aligned(8); + } buffer; +}; + +/* + * Available cut-off frequencies of the low pass filter in Hz. + * The integer part and fractional part are represented separately. + */ +static const int adxrs290_lpf_3db_freq_hz_table[][2] = { + [0] = {480, 0}, + [1] = {320, 0}, + [2] = {160, 0}, + [3] = {80, 0}, + [4] = {56, 600000}, + [5] = {40, 0}, + [6] = {28, 300000}, + [7] = {20, 0}, +}; + +/* + * Available cut-off frequencies of the high pass filter in Hz. + * The integer part and fractional part are represented separately. + */ +static const int adxrs290_hpf_3db_freq_hz_table[][2] = { + [0] = {0, 0}, + [1] = {0, 11000}, + [2] = {0, 22000}, + [3] = {0, 44000}, + [4] = {0, 87000}, + [5] = {0, 175000}, + [6] = {0, 350000}, + [7] = {0, 700000}, + [8] = {1, 400000}, + [9] = {2, 800000}, + [10] = {11, 300000}, +}; + +static int adxrs290_get_rate_data(struct iio_dev *indio_dev, const u8 cmd, int *val) +{ + struct adxrs290_state *st = iio_priv(indio_dev); + int ret = 0; + int temp; + + mutex_lock(&st->lock); + temp = spi_w8r16(st->spi, cmd); + if (temp < 0) { + ret = temp; + goto err_unlock; + } + + *val = temp; + +err_unlock: + mutex_unlock(&st->lock); + return ret; +} + +static int adxrs290_get_temp_data(struct iio_dev *indio_dev, int *val) +{ + const u8 cmd = ADXRS290_READ_REG(ADXRS290_REG_TEMP0); + struct adxrs290_state *st = iio_priv(indio_dev); + int ret = 0; + int temp; + + mutex_lock(&st->lock); + temp = spi_w8r16(st->spi, cmd); + if (temp < 0) { + ret = temp; + goto err_unlock; + } + + /* extract lower 12 bits temperature reading */ + *val = temp & 0x0FFF; + +err_unlock: + mutex_unlock(&st->lock); + return ret; +} + +static int adxrs290_get_3db_freq(struct iio_dev *indio_dev, u8 *val, u8 *val2) +{ + const u8 cmd = ADXRS290_READ_REG(ADXRS290_REG_FILTER); + struct adxrs290_state *st = iio_priv(indio_dev); + int ret = 0; + short temp; + + mutex_lock(&st->lock); + temp = spi_w8r8(st->spi, cmd); + if (temp < 0) { + ret = temp; + goto err_unlock; + } + + *val = FIELD_GET(ADXRS290_LPF_MASK, temp); + *val2 = FIELD_GET(ADXRS290_HPF_MASK, temp); + +err_unlock: + mutex_unlock(&st->lock); + return ret; +} + +static int adxrs290_spi_write_reg(struct spi_device *spi, const u8 reg, + const u8 val) +{ + u8 buf[2]; + + buf[0] = reg; + buf[1] = val; + + return spi_write_then_read(spi, buf, ARRAY_SIZE(buf), NULL, 0); +} + +static int adxrs290_find_match(const int (*freq_tbl)[2], const int n, + const int val, const int val2) +{ + int i; + + for (i = 0; i < n; i++) { + if (freq_tbl[i][0] == val && freq_tbl[i][1] == val2) + return i; + } + + return -EINVAL; +} + +static int adxrs290_set_filter_freq(struct iio_dev *indio_dev, + const unsigned int lpf_idx, + const unsigned int hpf_idx) +{ + struct adxrs290_state *st = iio_priv(indio_dev); + u8 val; + + val = ADXRS290_HPF(hpf_idx) | ADXRS290_LPF(lpf_idx); + + return adxrs290_spi_write_reg(st->spi, ADXRS290_REG_FILTER, val); +} + +static int adxrs290_set_mode(struct iio_dev *indio_dev, enum adxrs290_mode mode) +{ + struct adxrs290_state *st = iio_priv(indio_dev); + int val, ret; + + if (st->mode == mode) + return 0; + + mutex_lock(&st->lock); + + ret = spi_w8r8(st->spi, ADXRS290_READ_REG(ADXRS290_REG_POWER_CTL)); + if (ret < 0) + goto out_unlock; + + val = ret; + + switch (mode) { + case ADXRS290_MODE_STANDBY: + val &= ~ADXRS290_MEASUREMENT; + break; + case ADXRS290_MODE_MEASUREMENT: + val |= ADXRS290_MEASUREMENT; + break; + default: + ret = -EINVAL; + goto out_unlock; + } + + ret = adxrs290_spi_write_reg(st->spi, ADXRS290_REG_POWER_CTL, val); + if (ret < 0) { + dev_err(&st->spi->dev, "unable to set mode: %d\n", ret); + goto out_unlock; + } + + /* update cached mode */ + st->mode = mode; + +out_unlock: + mutex_unlock(&st->lock); + return ret; +} + +static void adxrs290_chip_off_action(void *data) +{ + struct iio_dev *indio_dev = data; + + adxrs290_set_mode(indio_dev, ADXRS290_MODE_STANDBY); +} + +static int adxrs290_initial_setup(struct iio_dev *indio_dev) +{ + struct adxrs290_state *st = iio_priv(indio_dev); + struct spi_device *spi = st->spi; + int ret; + + ret = adxrs290_spi_write_reg(spi, ADXRS290_REG_POWER_CTL, + ADXRS290_MEASUREMENT | ADXRS290_TSM); + if (ret < 0) + return ret; + + st->mode = ADXRS290_MODE_MEASUREMENT; + + return devm_add_action_or_reset(&spi->dev, adxrs290_chip_off_action, + indio_dev); +} + +static int adxrs290_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, + int *val2, + long mask) +{ + struct adxrs290_state *st = iio_priv(indio_dev); + unsigned int t; + int ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; + + switch (chan->type) { + case IIO_ANGL_VEL: + ret = adxrs290_get_rate_data(indio_dev, + ADXRS290_READ_REG(chan->address), + val); + if (ret < 0) + break; + + ret = IIO_VAL_INT; + break; + case IIO_TEMP: + ret = adxrs290_get_temp_data(indio_dev, val); + if (ret < 0) + break; + + ret = IIO_VAL_INT; + break; + default: + ret = -EINVAL; + break; + } + + iio_device_release_direct_mode(indio_dev); + return ret; + case IIO_CHAN_INFO_SCALE: + switch (chan->type) { + case IIO_ANGL_VEL: + /* 1 LSB = 0.005 degrees/sec */ + *val = 0; + *val2 = 87266; + return IIO_VAL_INT_PLUS_NANO; + case IIO_TEMP: + /* 1 LSB = 0.1 degrees Celsius */ + *val = 100; + return IIO_VAL_INT; + default: + return -EINVAL; + } + case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY: + switch (chan->type) { + case IIO_ANGL_VEL: + t = st->lpf_3db_freq_idx; + *val = adxrs290_lpf_3db_freq_hz_table[t][0]; + *val2 = adxrs290_lpf_3db_freq_hz_table[t][1]; + return IIO_VAL_INT_PLUS_MICRO; + default: + return -EINVAL; + } + case IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY: + switch (chan->type) { + case IIO_ANGL_VEL: + t = st->hpf_3db_freq_idx; + *val = adxrs290_hpf_3db_freq_hz_table[t][0]; + *val2 = adxrs290_hpf_3db_freq_hz_table[t][1]; + return IIO_VAL_INT_PLUS_MICRO; + default: + return -EINVAL; + } + } + + return -EINVAL; +} + +static int adxrs290_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, + int val2, + long mask) +{ + struct adxrs290_state *st = iio_priv(indio_dev); + int ret, lpf_idx, hpf_idx; + + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; + + switch (mask) { + case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY: + lpf_idx = adxrs290_find_match(adxrs290_lpf_3db_freq_hz_table, + ARRAY_SIZE(adxrs290_lpf_3db_freq_hz_table), + val, val2); + if (lpf_idx < 0) { + ret = -EINVAL; + break; + } + + /* caching the updated state of the low-pass filter */ + st->lpf_3db_freq_idx = lpf_idx; + /* retrieving the current state of the high-pass filter */ + hpf_idx = st->hpf_3db_freq_idx; + ret = adxrs290_set_filter_freq(indio_dev, lpf_idx, hpf_idx); + break; + + case IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY: + hpf_idx = adxrs290_find_match(adxrs290_hpf_3db_freq_hz_table, + ARRAY_SIZE(adxrs290_hpf_3db_freq_hz_table), + val, val2); + if (hpf_idx < 0) { + ret = -EINVAL; + break; + } + + /* caching the updated state of the high-pass filter */ + st->hpf_3db_freq_idx = hpf_idx; + /* retrieving the current state of the low-pass filter */ + lpf_idx = st->lpf_3db_freq_idx; + ret = adxrs290_set_filter_freq(indio_dev, lpf_idx, hpf_idx); + break; + + default: + ret = -EINVAL; + break; + } + + iio_device_release_direct_mode(indio_dev); + return ret; +} + +static int adxrs290_read_avail(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + const int **vals, int *type, int *length, + long mask) +{ + switch (mask) { + case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY: + *vals = (const int *)adxrs290_lpf_3db_freq_hz_table; + *type = IIO_VAL_INT_PLUS_MICRO; + /* Values are stored in a 2D matrix */ + *length = ARRAY_SIZE(adxrs290_lpf_3db_freq_hz_table) * 2; + + return IIO_AVAIL_LIST; + case IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY: + *vals = (const int *)adxrs290_hpf_3db_freq_hz_table; + *type = IIO_VAL_INT_PLUS_MICRO; + /* Values are stored in a 2D matrix */ + *length = ARRAY_SIZE(adxrs290_hpf_3db_freq_hz_table) * 2; + + return IIO_AVAIL_LIST; + default: + return -EINVAL; + } +} + +static int adxrs290_reg_access_rw(struct spi_device *spi, unsigned int reg, + unsigned int *readval) +{ + int ret; + + ret = spi_w8r8(spi, ADXRS290_READ_REG(reg)); + if (ret < 0) + return ret; + + *readval = ret; + + return 0; +} + +static int adxrs290_reg_access(struct iio_dev *indio_dev, unsigned int reg, + unsigned int writeval, unsigned int *readval) +{ + struct adxrs290_state *st = iio_priv(indio_dev); + + if (readval) + return adxrs290_reg_access_rw(st->spi, reg, readval); + else + return adxrs290_spi_write_reg(st->spi, reg, writeval); +} + +static int adxrs290_data_rdy_trigger_set_state(struct iio_trigger *trig, + bool state) +{ + struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); + struct adxrs290_state *st = iio_priv(indio_dev); + int ret; + u8 val; + + val = state ? ADXRS290_SYNC(ADXRS290_DATA_RDY_OUT) : 0; + + ret = adxrs290_spi_write_reg(st->spi, ADXRS290_REG_DATA_RDY, val); + if (ret < 0) + dev_err(&st->spi->dev, "failed to start data rdy interrupt\n"); + + return ret; +} + +static int adxrs290_reset_trig(struct iio_trigger *trig) +{ + struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); + int val; + + /* + * Data ready interrupt is reset after a read of the data registers. + * Here, we only read the 16b DATAY registers as that marks the end of + * a read of the data registers and initiates a reset for the interrupt + * line. + */ + adxrs290_get_rate_data(indio_dev, + ADXRS290_READ_REG(ADXRS290_REG_DATAY0), &val); + + return 0; +} + +static const struct iio_trigger_ops adxrs290_trigger_ops = { + .set_trigger_state = &adxrs290_data_rdy_trigger_set_state, + .validate_device = &iio_trigger_validate_own_device, + .try_reenable = &adxrs290_reset_trig, +}; + +static irqreturn_t adxrs290_trigger_handler(int irq, void *p) +{ + struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + struct adxrs290_state *st = iio_priv(indio_dev); + u8 tx = ADXRS290_READ_REG(ADXRS290_REG_DATAX0); + int ret; + + mutex_lock(&st->lock); + + /* exercise a bulk data capture starting from reg DATAX0... */ + ret = spi_write_then_read(st->spi, &tx, sizeof(tx), st->buffer.channels, + sizeof(st->buffer.channels)); + if (ret < 0) + goto out_unlock_notify; + + iio_push_to_buffers_with_timestamp(indio_dev, &st->buffer, + pf->timestamp); + +out_unlock_notify: + mutex_unlock(&st->lock); + iio_trigger_notify_done(indio_dev->trig); + + return IRQ_HANDLED; +} + +#define ADXRS290_ANGL_VEL_CHANNEL(reg, axis) { \ + .type = IIO_ANGL_VEL, \ + .address = reg, \ + .modified = 1, \ + .channel2 = IIO_MOD_##axis, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | \ + BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY) | \ + BIT(IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY), \ + .info_mask_shared_by_type_available = \ + BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY) | \ + BIT(IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY), \ + .scan_index = ADXRS290_IDX_##axis, \ + .scan_type = { \ + .sign = 's', \ + .realbits = 16, \ + .storagebits = 16, \ + .endianness = IIO_LE, \ + }, \ +} + +static const struct iio_chan_spec adxrs290_channels[] = { + ADXRS290_ANGL_VEL_CHANNEL(ADXRS290_REG_DATAX0, X), + ADXRS290_ANGL_VEL_CHANNEL(ADXRS290_REG_DATAY0, Y), + { + .type = IIO_TEMP, + .address = ADXRS290_REG_TEMP0, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_SCALE), + .scan_index = ADXRS290_IDX_TEMP, + .scan_type = { + .sign = 's', + .realbits = 12, + .storagebits = 16, + .endianness = IIO_LE, + }, + }, + IIO_CHAN_SOFT_TIMESTAMP(ADXRS290_IDX_TS), +}; + +static const unsigned long adxrs290_avail_scan_masks[] = { + BIT(ADXRS290_IDX_X) | BIT(ADXRS290_IDX_Y) | BIT(ADXRS290_IDX_TEMP), + 0 +}; + +static const struct iio_info adxrs290_info = { + .read_raw = &adxrs290_read_raw, + .write_raw = &adxrs290_write_raw, + .read_avail = &adxrs290_read_avail, + .debugfs_reg_access = &adxrs290_reg_access, +}; + +static int adxrs290_probe_trigger(struct iio_dev *indio_dev) +{ + struct adxrs290_state *st = iio_priv(indio_dev); + int ret; + + if (!st->spi->irq) { + dev_info(&st->spi->dev, "no irq, using polling\n"); + return 0; + } + + st->dready_trig = devm_iio_trigger_alloc(&st->spi->dev, "%s-dev%d", + indio_dev->name, + indio_dev->id); + if (!st->dready_trig) + return -ENOMEM; + + st->dready_trig->dev.parent = &st->spi->dev; + st->dready_trig->ops = &adxrs290_trigger_ops; + iio_trigger_set_drvdata(st->dready_trig, indio_dev); + + ret = devm_request_irq(&st->spi->dev, st->spi->irq, + &iio_trigger_generic_data_rdy_poll, + IRQF_ONESHOT, "adxrs290_irq", st->dready_trig); + if (ret < 0) + return dev_err_probe(&st->spi->dev, ret, + "request irq %d failed\n", st->spi->irq); + + ret = devm_iio_trigger_register(&st->spi->dev, st->dready_trig); + if (ret) { + dev_err(&st->spi->dev, "iio trigger register failed\n"); + return ret; + } + + indio_dev->trig = iio_trigger_get(st->dready_trig); + + return 0; +} + +static int adxrs290_probe(struct spi_device *spi) +{ + struct iio_dev *indio_dev; + struct adxrs290_state *st; + u8 val, val2; + int ret; + + indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + if (!indio_dev) + return -ENOMEM; + + st = iio_priv(indio_dev); + st->spi = spi; + + indio_dev->name = "adxrs290"; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->channels = adxrs290_channels; + indio_dev->num_channels = ARRAY_SIZE(adxrs290_channels); + indio_dev->info = &adxrs290_info; + indio_dev->available_scan_masks = adxrs290_avail_scan_masks; + + mutex_init(&st->lock); + + val = spi_w8r8(spi, ADXRS290_READ_REG(ADXRS290_REG_ADI_ID)); + if (val != ADXRS290_ADI_ID) { + dev_err(&spi->dev, "Wrong ADI ID 0x%02x\n", val); + return -ENODEV; + } + + val = spi_w8r8(spi, ADXRS290_READ_REG(ADXRS290_REG_MEMS_ID)); + if (val != ADXRS290_MEMS_ID) { + dev_err(&spi->dev, "Wrong MEMS ID 0x%02x\n", val); + return -ENODEV; + } + + val = spi_w8r8(spi, ADXRS290_READ_REG(ADXRS290_REG_DEV_ID)); + if (val != ADXRS290_DEV_ID) { + dev_err(&spi->dev, "Wrong DEV ID 0x%02x\n", val); + return -ENODEV; + } + + /* default mode the gyroscope starts in */ + st->mode = ADXRS290_MODE_STANDBY; + + /* switch to measurement mode and switch on the temperature sensor */ + ret = adxrs290_initial_setup(indio_dev); + if (ret < 0) + return ret; + + /* max transition time to measurement mode */ + msleep(ADXRS290_MAX_TRANSITION_TIME_MS); + + ret = adxrs290_get_3db_freq(indio_dev, &val, &val2); + if (ret < 0) + return ret; + + st->lpf_3db_freq_idx = val; + st->hpf_3db_freq_idx = val2; + + ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev, + &iio_pollfunc_store_time, + &adxrs290_trigger_handler, NULL); + if (ret < 0) + return dev_err_probe(&spi->dev, ret, + "iio triggered buffer setup failed\n"); + + ret = adxrs290_probe_trigger(indio_dev); + if (ret < 0) + return ret; + + return devm_iio_device_register(&spi->dev, indio_dev); +} + +static const struct of_device_id adxrs290_of_match[] = { + { .compatible = "adi,adxrs290" }, + { } +}; +MODULE_DEVICE_TABLE(of, adxrs290_of_match); + +static struct spi_driver adxrs290_driver = { + .driver = { + .name = "adxrs290", + .of_match_table = adxrs290_of_match, + }, + .probe = adxrs290_probe, +}; +module_spi_driver(adxrs290_driver); + +MODULE_AUTHOR("Nishant Malpani <nish.malpani25@gmail.com>"); +MODULE_DESCRIPTION("Analog Devices ADXRS290 Gyroscope SPI driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c index d3fbe9d86467..1c3c1bd53374 100644 --- a/drivers/iio/gyro/itg3200_buffer.c +++ b/drivers/iio/gyro/itg3200_buffer.c @@ -46,13 +46,20 @@ static irqreturn_t itg3200_trigger_handler(int irq, void *p) struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct itg3200 *st = iio_priv(indio_dev); - __be16 buf[ITG3200_SCAN_ELEMENTS + sizeof(s64)/sizeof(u16)]; - - int ret = itg3200_read_all_channels(st->i2c, buf); + /* + * Ensure correct alignment and padding including for the + * timestamp that may be inserted. + */ + struct { + __be16 buf[ITG3200_SCAN_ELEMENTS]; + s64 ts __aligned(8); + } scan; + + int ret = itg3200_read_all_channels(st->i2c, scan.buf); if (ret < 0) goto error_ret; - iio_push_to_buffers_with_timestamp(indio_dev, buf, pf->timestamp); + iio_push_to_buffers_with_timestamp(indio_dev, &scan, pf->timestamp); iio_trigger_notify_done(indio_dev->trig); diff --git a/drivers/iio/health/max30102.c b/drivers/iio/health/max30102.c index d9b2ed80882a..b35557a54ee2 100644 --- a/drivers/iio/health/max30102.c +++ b/drivers/iio/health/max30102.c @@ -2,7 +2,7 @@ /* * max30102.c - Support for MAX30102 heart rate and pulse oximeter sensor * - * Copyright (C) 2017 Matt Ranostay <matt@ranostay.consulting> + * Copyright (C) 2017 Matt Ranostay <matt.ranostay@konsulko.com> * * Support for MAX30105 optical particle sensor * Copyright (C) 2017 Peter Meerwald-Stadler <pmeerw@pmeerw.net> @@ -19,7 +19,7 @@ #include <linux/irq.h> #include <linux/i2c.h> #include <linux/mutex.h> -#include <linux/of.h> +#include <linux/mod_devicetable.h> #include <linux/regmap.h> #include <linux/iio/iio.h> #include <linux/iio/buffer.h> @@ -323,11 +323,10 @@ static int max30102_get_current_idx(unsigned int val, int *reg) static int max30102_led_init(struct max30102_data *data) { struct device *dev = &data->client->dev; - struct device_node *np = dev->of_node; unsigned int val; int reg, ret; - ret = of_property_read_u32(np, "maxim,red-led-current-microamp", &val); + ret = device_property_read_u32(dev, "maxim,red-led-current-microamp", &val); if (ret) { dev_info(dev, "no red-led-current-microamp set\n"); @@ -346,7 +345,7 @@ static int max30102_led_init(struct max30102_data *data) return ret; if (data->chip_id == max30105) { - ret = of_property_read_u32(np, + ret = device_property_read_u32(dev, "maxim,green-led-current-microamp", &val); if (ret) { dev_info(dev, "no green-led-current-microamp set\n"); @@ -368,7 +367,7 @@ static int max30102_led_init(struct max30102_data *data) return ret; } - ret = of_property_read_u32(np, "maxim,ir-led-current-microamp", &val); + ret = device_property_read_u32(dev, "maxim,ir-led-current-microamp", &val); if (ret) { dev_info(dev, "no ir-led-current-microamp set\n"); @@ -624,7 +623,7 @@ MODULE_DEVICE_TABLE(of, max30102_dt_ids); static struct i2c_driver max30102_driver = { .driver = { .name = MAX30102_DRV_NAME, - .of_match_table = of_match_ptr(max30102_dt_ids), + .of_match_table = max30102_dt_ids, }, .probe = max30102_probe, .remove = max30102_remove, @@ -632,6 +631,6 @@ static struct i2c_driver max30102_driver = { }; module_i2c_driver(max30102_driver); -MODULE_AUTHOR("Matt Ranostay <matt@ranostay.consulting>"); +MODULE_AUTHOR("Matt Ranostay <matt.ranostay@konsulko.com>"); MODULE_DESCRIPTION("MAX30102 heart rate/pulse oximeter and MAX30105 particle sensor driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/iio/humidity/Kconfig b/drivers/iio/humidity/Kconfig index 6c5507a6cd74..6549fcf6db69 100644 --- a/drivers/iio/humidity/Kconfig +++ b/drivers/iio/humidity/Kconfig @@ -38,6 +38,16 @@ config HDC100X To compile this driver as a module, choose M here: the module will be called hdc100x. +config HDC2010 + tristate "TI HDC2010 relative humidity and temperature sensor" + depends on I2C + help + Say yes here to build support for the Texas Instruments + HDC2010 and HDC2080 relative humidity and temperature sensors. + + To compile this driver as a module, choose M here: the module + will be called hdc2010. + config HID_SENSOR_HUMIDITY tristate "HID Environmental humidity sensor" depends on HID_SENSOR_HUB diff --git a/drivers/iio/humidity/Makefile b/drivers/iio/humidity/Makefile index ae4204995017..f19ff3de97c5 100644 --- a/drivers/iio/humidity/Makefile +++ b/drivers/iio/humidity/Makefile @@ -6,6 +6,7 @@ obj-$(CONFIG_AM2315) += am2315.o obj-$(CONFIG_DHT11) += dht11.o obj-$(CONFIG_HDC100X) += hdc100x.o +obj-$(CONFIG_HDC2010) += hdc2010.o obj-$(CONFIG_HID_SENSOR_HUMIDITY) += hid-sensor-humidity.o hts221-y := hts221_core.o \ diff --git a/drivers/iio/humidity/hdc100x.c b/drivers/iio/humidity/hdc100x.c index 071cb2b12bb6..2a957f19048e 100644 --- a/drivers/iio/humidity/hdc100x.c +++ b/drivers/iio/humidity/hdc100x.c @@ -15,6 +15,7 @@ #include <linux/delay.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/init.h> #include <linux/i2c.h> @@ -417,7 +418,7 @@ MODULE_DEVICE_TABLE(of, hdc100x_dt_ids); static struct i2c_driver hdc100x_driver = { .driver = { .name = "hdc100x", - .of_match_table = of_match_ptr(hdc100x_dt_ids), + .of_match_table = hdc100x_dt_ids, }, .probe = hdc100x_probe, .id_table = hdc100x_id, diff --git a/drivers/iio/humidity/hdc2010.c b/drivers/iio/humidity/hdc2010.c new file mode 100644 index 000000000000..83f5b9f60780 --- /dev/null +++ b/drivers/iio/humidity/hdc2010.c @@ -0,0 +1,353 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * hdc2010.c - Support for the TI HDC2010 and HDC2080 + * temperature + relative humidity sensors + * + * Copyright (C) 2020 Norphonic AS + * Author: Eugene Zaikonnikov <ez@norphonic.com> + * + * Datasheet: https://www.ti.com/product/HDC2010/datasheet + * Datasheet: https://www.ti.com/product/HDC2080/datasheet + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/bitops.h> + +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> + +#define HDC2010_REG_TEMP_LOW 0x00 +#define HDC2010_REG_TEMP_HIGH 0x01 +#define HDC2010_REG_HUMIDITY_LOW 0x02 +#define HDC2010_REG_HUMIDITY_HIGH 0x03 +#define HDC2010_REG_INTERRUPT_DRDY 0x04 +#define HDC2010_REG_TEMP_MAX 0x05 +#define HDC2010_REG_HUMIDITY_MAX 0x06 +#define HDC2010_REG_INTERRUPT_EN 0x07 +#define HDC2010_REG_TEMP_OFFSET_ADJ 0x08 +#define HDC2010_REG_HUMIDITY_OFFSET_ADJ 0x09 +#define HDC2010_REG_TEMP_THR_L 0x0a +#define HDC2010_REG_TEMP_THR_H 0x0b +#define HDC2010_REG_RH_THR_L 0x0c +#define HDC2010_REG_RH_THR_H 0x0d +#define HDC2010_REG_RESET_DRDY_INT_CONF 0x0e +#define HDC2010_REG_MEASUREMENT_CONF 0x0f + +#define HDC2010_MEAS_CONF GENMASK(2, 1) +#define HDC2010_MEAS_TRIG BIT(0) +#define HDC2010_HEATER_EN BIT(3) +#define HDC2010_AMM GENMASK(6, 4) + +struct hdc2010_data { + struct i2c_client *client; + struct mutex lock; + u8 measurement_config; + u8 interrupt_config; + u8 drdy_config; +}; + +enum hdc2010_addr_groups { + HDC2010_GROUP_TEMP = 0, + HDC2010_GROUP_HUMIDITY, +}; + +struct hdc2010_reg_record { + unsigned long primary; + unsigned long peak; +}; + +static const struct hdc2010_reg_record hdc2010_reg_translation[] = { + [HDC2010_GROUP_TEMP] = { + .primary = HDC2010_REG_TEMP_LOW, + .peak = HDC2010_REG_TEMP_MAX, + }, + [HDC2010_GROUP_HUMIDITY] = { + .primary = HDC2010_REG_HUMIDITY_LOW, + .peak = HDC2010_REG_HUMIDITY_MAX, + }, +}; + +static IIO_CONST_ATTR(out_current_heater_raw_available, "0 1"); + +static struct attribute *hdc2010_attributes[] = { + &iio_const_attr_out_current_heater_raw_available.dev_attr.attr, + NULL +}; + +static const struct attribute_group hdc2010_attribute_group = { + .attrs = hdc2010_attributes, +}; + +static const struct iio_chan_spec hdc2010_channels[] = { + { + .type = IIO_TEMP, + .address = HDC2010_GROUP_TEMP, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_PEAK) | + BIT(IIO_CHAN_INFO_OFFSET) | + BIT(IIO_CHAN_INFO_SCALE), + }, + { + .type = IIO_HUMIDITYRELATIVE, + .address = HDC2010_GROUP_HUMIDITY, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_PEAK) | + BIT(IIO_CHAN_INFO_SCALE), + }, + { + .type = IIO_CURRENT, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .extend_name = "heater", + .output = 1, + }, +}; + +static int hdc2010_update_drdy_config(struct hdc2010_data *data, + char mask, char val) +{ + u8 tmp = (~mask & data->drdy_config) | val; + int ret; + + ret = i2c_smbus_write_byte_data(data->client, + HDC2010_REG_RESET_DRDY_INT_CONF, tmp); + if (ret) + return ret; + + data->drdy_config = tmp; + + return 0; +} + +static int hdc2010_get_prim_measurement_word(struct hdc2010_data *data, + struct iio_chan_spec const *chan) +{ + struct i2c_client *client = data->client; + s32 ret; + + ret = i2c_smbus_read_word_data(client, + hdc2010_reg_translation[chan->address].primary); + + if (ret < 0) + dev_err(&client->dev, "Could not read sensor measurement word\n"); + + return ret; +} + +static int hdc2010_get_peak_measurement_byte(struct hdc2010_data *data, + struct iio_chan_spec const *chan) +{ + struct i2c_client *client = data->client; + s32 ret; + + ret = i2c_smbus_read_byte_data(client, + hdc2010_reg_translation[chan->address].peak); + + if (ret < 0) + dev_err(&client->dev, "Could not read sensor measurement byte\n"); + + return ret; +} + +static int hdc2010_get_heater_status(struct hdc2010_data *data) +{ + return !!(data->drdy_config & HDC2010_HEATER_EN); +} + +static int hdc2010_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, int *val, + int *val2, long mask) +{ + struct hdc2010_data *data = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_RAW: { + int ret; + + if (chan->type == IIO_CURRENT) { + *val = hdc2010_get_heater_status(data); + return IIO_VAL_INT; + } + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; + mutex_lock(&data->lock); + ret = hdc2010_get_prim_measurement_word(data, chan); + mutex_unlock(&data->lock); + iio_device_release_direct_mode(indio_dev); + if (ret < 0) + return ret; + *val = ret; + return IIO_VAL_INT; + } + case IIO_CHAN_INFO_PEAK: { + int ret; + + ret = iio_device_claim_direct_mode(indio_dev); + if (ret) + return ret; + mutex_lock(&data->lock); + ret = hdc2010_get_peak_measurement_byte(data, chan); + mutex_unlock(&data->lock); + iio_device_release_direct_mode(indio_dev); + if (ret < 0) + return ret; + /* Scaling up the value so we can use same offset as RAW */ + *val = ret * 256; + return IIO_VAL_INT; + } + case IIO_CHAN_INFO_SCALE: + *val2 = 65536; + if (chan->type == IIO_TEMP) + *val = 165000; + else + *val = 100000; + return IIO_VAL_FRACTIONAL; + case IIO_CHAN_INFO_OFFSET: + *val = -15887; + *val2 = 515151; + return IIO_VAL_INT_PLUS_MICRO; + default: + return -EINVAL; + } +} + +static int hdc2010_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct hdc2010_data *data = iio_priv(indio_dev); + int new, ret; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + if (chan->type != IIO_CURRENT || val2 != 0) + return -EINVAL; + + switch (val) { + case 1: + new = HDC2010_HEATER_EN; + break; + case 0: + new = 0; + break; + default: + return -EINVAL; + } + + mutex_lock(&data->lock); + ret = hdc2010_update_drdy_config(data, HDC2010_HEATER_EN, new); + mutex_unlock(&data->lock); + return ret; + default: + return -EINVAL; + } +} + +static const struct iio_info hdc2010_info = { + .read_raw = hdc2010_read_raw, + .write_raw = hdc2010_write_raw, + .attrs = &hdc2010_attribute_group, +}; + +static int hdc2010_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct iio_dev *indio_dev; + struct hdc2010_data *data; + u8 tmp; + int ret; + + if (!i2c_check_functionality(client->adapter, + I2C_FUNC_SMBUS_WORD_DATA | I2C_FUNC_SMBUS_BYTE | I2C_FUNC_I2C)) + return -EOPNOTSUPP; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + data = iio_priv(indio_dev); + i2c_set_clientdata(client, indio_dev); + data->client = client; + mutex_init(&data->lock); + + indio_dev->dev.parent = &client->dev; + /* + * As DEVICE ID register does not differentiate between + * HDC2010 and HDC2080, we have the name hardcoded + */ + indio_dev->name = "hdc2010"; + indio_dev->modes = INDIO_DIRECT_MODE; + indio_dev->info = &hdc2010_info; + + indio_dev->channels = hdc2010_channels; + indio_dev->num_channels = ARRAY_SIZE(hdc2010_channels); + + /* Enable Automatic Measurement Mode at 5Hz */ + ret = hdc2010_update_drdy_config(data, HDC2010_AMM, HDC2010_AMM); + if (ret) + return ret; + + /* + * We enable both temp and humidity measurement. + * However the measurement won't start even in AMM until triggered. + */ + tmp = (data->measurement_config & ~HDC2010_MEAS_CONF) | + HDC2010_MEAS_TRIG; + + ret = i2c_smbus_write_byte_data(client, HDC2010_REG_MEASUREMENT_CONF, tmp); + if (ret) { + dev_warn(&client->dev, "Unable to set up measurement\n"); + if (hdc2010_update_drdy_config(data, HDC2010_AMM, 0)) + dev_warn(&client->dev, "Unable to restore default AMM\n"); + return ret; + } + + data->measurement_config = tmp; + + return iio_device_register(indio_dev); +} + +static int hdc2010_remove(struct i2c_client *client) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(client); + struct hdc2010_data *data = iio_priv(indio_dev); + + iio_device_unregister(indio_dev); + + /* Disable Automatic Measurement Mode */ + if (hdc2010_update_drdy_config(data, HDC2010_AMM, 0)) + dev_warn(&client->dev, "Unable to restore default AMM\n"); + + return 0; +} + +static const struct i2c_device_id hdc2010_id[] = { + { "hdc2010" }, + { "hdc2080" }, + { } +}; +MODULE_DEVICE_TABLE(i2c, hdc2010_id); + +static const struct of_device_id hdc2010_dt_ids[] = { + { .compatible = "ti,hdc2010" }, + { .compatible = "ti,hdc2080" }, + { } +}; +MODULE_DEVICE_TABLE(of, hdc2010_dt_ids); + +static struct i2c_driver hdc2010_driver = { + .driver = { + .name = "hdc2010", + .of_match_table = hdc2010_dt_ids, + }, + .probe = hdc2010_probe, + .remove = hdc2010_remove, + .id_table = hdc2010_id, +}; +module_i2c_driver(hdc2010_driver); + +MODULE_AUTHOR("Eugene Zaikonnikov <ez@norphonic.com>"); +MODULE_DESCRIPTION("TI HDC2010 humidity and temperature sensor driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/iio/humidity/htu21.c b/drivers/iio/humidity/htu21.c index 4f5d9d1c05ab..36df2a102ca4 100644 --- a/drivers/iio/humidity/htu21.c +++ b/drivers/iio/humidity/htu21.c @@ -19,6 +19,7 @@ #include <linux/kernel.h> #include <linux/stat.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> @@ -247,7 +248,7 @@ static struct i2c_driver htu21_driver = { .id_table = htu21_id, .driver = { .name = "htu21", - .of_match_table = of_match_ptr(htu21_of_match), + .of_match_table = htu21_of_match, }, }; diff --git a/drivers/iio/humidity/si7020.c b/drivers/iio/humidity/si7020.c index a09b5773d377..ab6537f136ba 100644 --- a/drivers/iio/humidity/si7020.c +++ b/drivers/iio/humidity/si7020.c @@ -20,6 +20,7 @@ #include <linux/delay.h> #include <linux/i2c.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/slab.h> #include <linux/sysfs.h> @@ -153,7 +154,7 @@ MODULE_DEVICE_TABLE(of, si7020_dt_ids); static struct i2c_driver si7020_driver = { .driver = { .name = "si7020", - .of_match_table = of_match_ptr(si7020_dt_ids), + .of_match_table = si7020_dt_ids, }, .probe = si7020_probe, .id_table = si7020_id, diff --git a/drivers/iio/iio_core_trigger.h b/drivers/iio/iio_core_trigger.h index 9d1a92cc6480..374816bc3e73 100644 --- a/drivers/iio/iio_core_trigger.h +++ b/drivers/iio/iio_core_trigger.h @@ -30,7 +30,7 @@ int iio_trigger_detach_poll_func(struct iio_trigger *trig, * iio_device_register_trigger_consumer() - set up an iio_dev to use triggers * @indio_dev: iio_dev associated with the device that will consume the trigger **/ -static int iio_device_register_trigger_consumer(struct iio_dev *indio_dev) +static inline int iio_device_register_trigger_consumer(struct iio_dev *indio_dev) { return 0; } @@ -39,7 +39,7 @@ static int iio_device_register_trigger_consumer(struct iio_dev *indio_dev) * iio_device_unregister_trigger_consumer() - reverse the registration process * @indio_dev: iio_dev associated with the device that consumed the trigger **/ -static void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev) +static inline void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev) { } diff --git a/drivers/iio/imu/adis16400.c b/drivers/iio/imu/adis16400.c index 1ebe3e50d3e6..54af2ed664f6 100644 --- a/drivers/iio/imu/adis16400.c +++ b/drivers/iio/imu/adis16400.c @@ -173,6 +173,8 @@ struct adis16400_chip_info { * @variant: chip variant info * @filt_int: integer part of requested filter frequency * @adis: adis device + * @avail_scan_mask: NULL terminated array of bitmaps of channels + * that must be enabled together **/ struct adis16400_state { struct adis16400_chip_info *variant; @@ -317,11 +319,6 @@ enum adis16400_chip_variant { ADIS16448, }; -static struct adis_burst adis16400_burst = { - .en = true, - .reg_cmd = ADIS16400_GLOB_CMD, -}; - static int adis16334_get_freq(struct adis16400_state *st) { int ret; @@ -947,7 +944,7 @@ static const char * const adis16400_status_error_msgs[] = { [ADIS16400_DIAG_STAT_POWER_LOW] = "Power supply below 4.75V", }; -#define ADIS16400_DATA(_timeouts) \ +#define ADIS16400_DATA(_timeouts, _burst_len) \ { \ .msc_ctrl_reg = ADIS16400_MSC_CTRL, \ .glob_cmd_reg = ADIS16400_GLOB_CMD, \ @@ -973,6 +970,8 @@ static const char * const adis16400_status_error_msgs[] = { BIT(ADIS16400_DIAG_STAT_POWER_HIGH) | \ BIT(ADIS16400_DIAG_STAT_POWER_LOW), \ .timeouts = (_timeouts), \ + .burst_reg_cmd = ADIS16400_GLOB_CMD, \ + .burst_len = (_burst_len) \ } static const struct adis_timeout adis16300_timeouts = { @@ -1023,7 +1022,7 @@ static struct adis16400_chip_info adis16400_chips[] = { .temp_offset = 25000000 / 140000, /* 25 C = 0x00 */ .set_freq = adis16400_set_freq, .get_freq = adis16400_get_freq, - .adis_data = ADIS16400_DATA(&adis16300_timeouts), + .adis_data = ADIS16400_DATA(&adis16300_timeouts, 18), }, [ADIS16334] = { .channels = adis16334_channels, @@ -1036,7 +1035,7 @@ static struct adis16400_chip_info adis16400_chips[] = { .temp_offset = 25000000 / 67850, /* 25 C = 0x00 */ .set_freq = adis16334_set_freq, .get_freq = adis16334_get_freq, - .adis_data = ADIS16400_DATA(&adis16334_timeouts), + .adis_data = ADIS16400_DATA(&adis16334_timeouts, 0), }, [ADIS16350] = { .channels = adis16350_channels, @@ -1048,7 +1047,7 @@ static struct adis16400_chip_info adis16400_chips[] = { .flags = ADIS16400_NO_BURST | ADIS16400_HAS_SLOW_MODE, .set_freq = adis16400_set_freq, .get_freq = adis16400_get_freq, - .adis_data = ADIS16400_DATA(&adis16300_timeouts), + .adis_data = ADIS16400_DATA(&adis16300_timeouts, 0), }, [ADIS16360] = { .channels = adis16350_channels, @@ -1061,7 +1060,7 @@ static struct adis16400_chip_info adis16400_chips[] = { .temp_offset = 25000000 / 136000, /* 25 C = 0x00 */ .set_freq = adis16400_set_freq, .get_freq = adis16400_get_freq, - .adis_data = ADIS16400_DATA(&adis16300_timeouts), + .adis_data = ADIS16400_DATA(&adis16300_timeouts, 28), }, [ADIS16362] = { .channels = adis16350_channels, @@ -1074,7 +1073,7 @@ static struct adis16400_chip_info adis16400_chips[] = { .temp_offset = 25000000 / 136000, /* 25 C = 0x00 */ .set_freq = adis16400_set_freq, .get_freq = adis16400_get_freq, - .adis_data = ADIS16400_DATA(&adis16362_timeouts), + .adis_data = ADIS16400_DATA(&adis16362_timeouts, 28), }, [ADIS16364] = { .channels = adis16350_channels, @@ -1087,7 +1086,7 @@ static struct adis16400_chip_info adis16400_chips[] = { .temp_offset = 25000000 / 136000, /* 25 C = 0x00 */ .set_freq = adis16400_set_freq, .get_freq = adis16400_get_freq, - .adis_data = ADIS16400_DATA(&adis16362_timeouts), + .adis_data = ADIS16400_DATA(&adis16362_timeouts, 28), }, [ADIS16367] = { .channels = adis16350_channels, @@ -1100,7 +1099,7 @@ static struct adis16400_chip_info adis16400_chips[] = { .temp_offset = 25000000 / 136000, /* 25 C = 0x00 */ .set_freq = adis16400_set_freq, .get_freq = adis16400_get_freq, - .adis_data = ADIS16400_DATA(&adis16300_timeouts), + .adis_data = ADIS16400_DATA(&adis16300_timeouts, 28), }, [ADIS16400] = { .channels = adis16400_channels, @@ -1112,7 +1111,7 @@ static struct adis16400_chip_info adis16400_chips[] = { .temp_offset = 25000000 / 140000, /* 25 C = 0x00 */ .set_freq = adis16400_set_freq, .get_freq = adis16400_get_freq, - .adis_data = ADIS16400_DATA(&adis16400_timeouts), + .adis_data = ADIS16400_DATA(&adis16400_timeouts, 24), }, [ADIS16445] = { .channels = adis16445_channels, @@ -1126,7 +1125,7 @@ static struct adis16400_chip_info adis16400_chips[] = { .temp_offset = 31000000 / 73860, /* 31 C = 0x00 */ .set_freq = adis16334_set_freq, .get_freq = adis16334_get_freq, - .adis_data = ADIS16400_DATA(&adis16445_timeouts), + .adis_data = ADIS16400_DATA(&adis16445_timeouts, 16), }, [ADIS16448] = { .channels = adis16448_channels, @@ -1140,7 +1139,7 @@ static struct adis16400_chip_info adis16400_chips[] = { .temp_offset = 31000000 / 73860, /* 31 C = 0x00 */ .set_freq = adis16334_set_freq, .get_freq = adis16334_get_freq, - .adis_data = ADIS16400_DATA(&adis16448_timeouts), + .adis_data = ADIS16400_DATA(&adis16448_timeouts, 24), } }; @@ -1164,6 +1163,12 @@ static void adis16400_setup_chan_mask(struct adis16400_state *st) st->avail_scan_mask[0] |= BIT(ch->scan_index); } } + +static void adis16400_stop(void *data) +{ + adis16400_stop_device(data); +} + static int adis16400_probe(struct spi_device *spi) { struct adis16400_state *st; @@ -1190,9 +1195,6 @@ static int adis16400_probe(struct spi_device *spi) if (!(st->variant->flags & ADIS16400_NO_BURST)) { adis16400_setup_chan_mask(st); indio_dev->available_scan_masks = st->avail_scan_mask; - st->adis.burst = &adis16400_burst; - if (st->variant->flags & ADIS16400_BURST_DIAG_STAT) - st->adis.burst_extra_len = sizeof(u16); } adis16400_data = &st->variant->adis_data; @@ -1201,37 +1203,24 @@ static int adis16400_probe(struct spi_device *spi) if (ret) return ret; - ret = adis_setup_buffer_and_trigger(&st->adis, indio_dev, - adis16400_trigger_handler); + ret = devm_adis_setup_buffer_and_trigger(&st->adis, indio_dev, adis16400_trigger_handler); if (ret) return ret; /* Get the device into a sane initial state */ ret = adis16400_initial_setup(indio_dev); if (ret) - goto error_cleanup_buffer; - ret = iio_device_register(indio_dev); - if (ret) - goto error_cleanup_buffer; - - adis16400_debugfs_init(indio_dev); - return 0; - -error_cleanup_buffer: - adis_cleanup_buffer_and_trigger(&st->adis, indio_dev); - return ret; -} - -static int adis16400_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct adis16400_state *st = iio_priv(indio_dev); + return ret; - iio_device_unregister(indio_dev); - adis16400_stop_device(indio_dev); + ret = devm_add_action_or_reset(&spi->dev, adis16400_stop, indio_dev); + if (ret) + return ret; - adis_cleanup_buffer_and_trigger(&st->adis, indio_dev); + ret = devm_iio_device_register(&spi->dev, indio_dev); + if (ret) + return ret; + adis16400_debugfs_init(indio_dev); return 0; } @@ -1261,7 +1250,6 @@ static struct spi_driver adis16400_driver = { }, .id_table = adis16400_id, .probe = adis16400_probe, - .remove = adis16400_remove, }; module_spi_driver(adis16400_driver); diff --git a/drivers/iio/imu/adis16460.c b/drivers/iio/imu/adis16460.c index b26a5f1bc51a..74a161e39733 100644 --- a/drivers/iio/imu/adis16460.c +++ b/drivers/iio/imu/adis16460.c @@ -403,7 +403,7 @@ static int adis16460_probe(struct spi_device *spi) if (ret) return ret; - ret = adis_setup_buffer_and_trigger(&st->adis, indio_dev, NULL); + ret = devm_adis_setup_buffer_and_trigger(&st->adis, indio_dev, NULL); if (ret) return ret; @@ -411,31 +411,15 @@ static int adis16460_probe(struct spi_device *spi) ret = __adis_initial_startup(&st->adis); if (ret) - goto error_cleanup_buffer; + return ret; - ret = iio_device_register(indio_dev); + ret = devm_iio_device_register(&spi->dev, indio_dev); if (ret) - goto error_cleanup_buffer; + return ret; adis16460_debugfs_init(indio_dev); return 0; - -error_cleanup_buffer: - adis_cleanup_buffer_and_trigger(&st->adis, indio_dev); - return ret; -} - -static int adis16460_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct adis16460 *st = iio_priv(indio_dev); - - iio_device_unregister(indio_dev); - - adis_cleanup_buffer_and_trigger(&st->adis, indio_dev); - - return 0; } static const struct spi_device_id adis16460_ids[] = { @@ -457,7 +441,6 @@ static struct spi_driver adis16460_driver = { }, .id_table = adis16460_ids, .probe = adis16460_probe, - .remove = adis16460_remove, }; module_spi_driver(adis16460_driver); diff --git a/drivers/iio/imu/adis16475.c b/drivers/iio/imu/adis16475.c index 35d10ccb66c2..197d48240991 100644 --- a/drivers/iio/imu/adis16475.c +++ b/drivers/iio/imu/adis16475.c @@ -565,6 +565,9 @@ static int adis16475_enable_irq(struct adis *adis, bool enable) BIT(ADIS16475_DIAG_STAT_CLK), \ .enable_irq = adis16475_enable_irq, \ .timeouts = (_timeouts), \ + .burst_reg_cmd = ADIS16475_REG_GLOB_CMD, \ + .burst_len = ADIS16475_BURST_MAX_DATA, \ + .burst_max_len = ADIS16475_BURST32_MAX_DATA \ } static const struct adis16475_sync adis16475_sync_mode[] = { @@ -910,20 +913,6 @@ static const struct iio_info adis16475_info = { .debugfs_reg_access = adis_debugfs_reg_access, }; -static struct adis_burst adis16475_burst = { - .en = true, - .reg_cmd = ADIS16475_REG_GLOB_CMD, - /* - * adis_update_scan_mode_burst() sets the burst length in respect with - * the number of channels and allocates 16 bits for each. However, - * adis1647x devices also need space for DIAG_STAT, DATA_CNTR or - * TIME_STAMP (depending on the clock mode but for us these bytes are - * don't care...) and CRC. - */ - .extra_len = 3 * sizeof(u16), - .burst_max_len = ADIS16475_BURST32_MAX_DATA, -}; - static bool adis16475_validate_crc(const u8 *buffer, u16 crc, const bool burst32) { @@ -1279,7 +1268,6 @@ static int adis16475_probe(struct spi_device *spi) st = iio_priv(indio_dev); spi_set_drvdata(spi, indio_dev); - st->adis.burst = &adis16475_burst; st->info = device_get_match_data(&spi->dev); if (!st->info) diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c index 1eb4f98076f1..dfe86c589325 100644 --- a/drivers/iio/imu/adis16480.c +++ b/drivers/iio/imu/adis16480.c @@ -1212,6 +1212,16 @@ static int adis16480_get_ext_clocks(struct adis16480 *st) return 0; } +static void adis16480_stop(void *data) +{ + adis16480_stop_device(data); +} + +static void adis16480_clk_disable(void *data) +{ + clk_disable_unprepare(data); +} + static int adis16480_probe(struct spi_device *spi) { const struct spi_device_id *id = spi_get_device_id(spi); @@ -1245,18 +1255,26 @@ static int adis16480_probe(struct spi_device *spi) if (ret) return ret; + ret = devm_add_action_or_reset(&spi->dev, adis16480_stop, indio_dev); + if (ret) + return ret; + ret = adis16480_config_irq_pin(spi->dev.of_node, st); if (ret) - goto error_stop_device; + return ret; ret = adis16480_get_ext_clocks(st); if (ret) - goto error_stop_device; + return ret; if (!IS_ERR_OR_NULL(st->ext_clk)) { ret = adis16480_ext_clk_config(st, spi->dev.of_node, true); if (ret) - goto error_stop_device; + return ret; + + ret = devm_add_action_or_reset(&spi->dev, adis16480_clk_disable, st->ext_clk); + if (ret) + return ret; st->clk_freq = clk_get_rate(st->ext_clk); st->clk_freq *= 1000; /* micro */ @@ -1264,39 +1282,17 @@ static int adis16480_probe(struct spi_device *spi) st->clk_freq = st->chip_info->int_clk; } - ret = adis_setup_buffer_and_trigger(&st->adis, indio_dev, NULL); + ret = devm_adis_setup_buffer_and_trigger(&st->adis, indio_dev, NULL); if (ret) - goto error_clk_disable_unprepare; + return ret; - ret = iio_device_register(indio_dev); + ret = devm_iio_device_register(&spi->dev, indio_dev); if (ret) - goto error_cleanup_buffer; + return ret; adis16480_debugfs_init(indio_dev); return 0; - -error_cleanup_buffer: - adis_cleanup_buffer_and_trigger(&st->adis, indio_dev); -error_clk_disable_unprepare: - clk_disable_unprepare(st->ext_clk); -error_stop_device: - adis16480_stop_device(indio_dev); - return ret; -} - -static int adis16480_remove(struct spi_device *spi) -{ - struct iio_dev *indio_dev = spi_get_drvdata(spi); - struct adis16480 *st = iio_priv(indio_dev); - - iio_device_unregister(indio_dev); - adis16480_stop_device(indio_dev); - - adis_cleanup_buffer_and_trigger(&st->adis, indio_dev); - clk_disable_unprepare(st->ext_clk); - - return 0; } static const struct spi_device_id adis16480_ids[] = { @@ -1338,7 +1334,6 @@ static struct spi_driver adis16480_driver = { }, .id_table = adis16480_ids, .probe = adis16480_probe, - .remove = adis16480_remove, }; module_spi_driver(adis16480_driver); diff --git a/drivers/iio/imu/adis_buffer.c b/drivers/iio/imu/adis_buffer.c index 5b4225ee09b9..ac354321f63a 100644 --- a/drivers/iio/imu/adis_buffer.c +++ b/drivers/iio/imu/adis_buffer.c @@ -26,12 +26,10 @@ static int adis_update_scan_mode_burst(struct iio_dev *indio_dev, unsigned int burst_length, burst_max_length; u8 *tx; - /* All but the timestamp channel */ - burst_length = (indio_dev->num_channels - 1) * sizeof(u16); - burst_length += adis->burst->extra_len + adis->burst_extra_len; + burst_length = adis->data->burst_len + adis->burst_extra_len; - if (adis->burst->burst_max_len) - burst_max_length = adis->burst->burst_max_len; + if (adis->data->burst_max_len) + burst_max_length = adis->data->burst_max_len; else burst_max_length = burst_length; @@ -47,7 +45,7 @@ static int adis_update_scan_mode_burst(struct iio_dev *indio_dev, } tx = adis->buffer + burst_max_length; - tx[0] = ADIS_READ_REG(adis->burst->reg_cmd); + tx[0] = ADIS_READ_REG(adis->data->burst_reg_cmd); tx[1] = 0; adis->xfer[0].tx_buf = tx; @@ -76,7 +74,7 @@ int adis_update_scan_mode(struct iio_dev *indio_dev, kfree(adis->xfer); kfree(adis->buffer); - if (adis->burst && adis->burst->en) + if (adis->data->burst_len) return adis_update_scan_mode_burst(indio_dev, scan_mask); scan_count = indio_dev->scan_bytes / 2; @@ -170,48 +168,6 @@ static void adis_buffer_cleanup(void *arg) } /** - * adis_setup_buffer_and_trigger() - Sets up buffer and trigger for the adis device - * @adis: The adis device. - * @indio_dev: The IIO device. - * @trigger_handler: Optional trigger handler, may be NULL. - * - * Returns 0 on success, a negative error code otherwise. - * - * This function sets up the buffer and trigger for a adis devices. If - * 'trigger_handler' is NULL the default trigger handler will be used. The - * default trigger handler will simply read the registers assigned to the - * currently active channels. - * - * adis_cleanup_buffer_and_trigger() should be called to free the resources - * allocated by this function. - */ -int adis_setup_buffer_and_trigger(struct adis *adis, struct iio_dev *indio_dev, - irqreturn_t (*trigger_handler)(int, void *)) -{ - int ret; - - if (!trigger_handler) - trigger_handler = adis_trigger_handler; - - ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time, - trigger_handler, NULL); - if (ret) - return ret; - - if (adis->spi->irq) { - ret = adis_probe_trigger(adis, indio_dev); - if (ret) - goto error_buffer_cleanup; - } - return 0; - -error_buffer_cleanup: - iio_triggered_buffer_cleanup(indio_dev); - return ret; -} -EXPORT_SYMBOL_GPL(adis_setup_buffer_and_trigger); - -/** * devm_adis_setup_buffer_and_trigger() - Sets up buffer and trigger for * the managed adis device * @adis: The adis device @@ -220,7 +176,10 @@ EXPORT_SYMBOL_GPL(adis_setup_buffer_and_trigger); * * Returns 0 on success, a negative error code otherwise. * - * This function perfoms exactly the same as adis_setup_buffer_and_trigger() + * This function sets up the buffer and trigger for a adis devices. If + * 'trigger_handler' is NULL the default trigger handler will be used. The + * default trigger handler will simply read the registers assigned to the + * currently active channels. */ int devm_adis_setup_buffer_and_trigger(struct adis *adis, struct iio_dev *indio_dev, @@ -248,20 +207,3 @@ devm_adis_setup_buffer_and_trigger(struct adis *adis, struct iio_dev *indio_dev, } EXPORT_SYMBOL_GPL(devm_adis_setup_buffer_and_trigger); -/** - * adis_cleanup_buffer_and_trigger() - Free buffer and trigger resources - * @adis: The adis device. - * @indio_dev: The IIO device. - * - * Frees resources allocated by adis_setup_buffer_and_trigger() - */ -void adis_cleanup_buffer_and_trigger(struct adis *adis, - struct iio_dev *indio_dev) -{ - if (adis->spi->irq) - adis_remove_trigger(adis); - kfree(adis->buffer); - kfree(adis->xfer); - iio_triggered_buffer_cleanup(indio_dev); -} -EXPORT_SYMBOL_GPL(adis_cleanup_buffer_and_trigger); diff --git a/drivers/iio/imu/adis_trigger.c b/drivers/iio/imu/adis_trigger.c index 8afe71947c00..64e0ba51cb18 100644 --- a/drivers/iio/imu/adis_trigger.c +++ b/drivers/iio/imu/adis_trigger.c @@ -55,53 +55,6 @@ static int adis_validate_irq_flag(struct adis *adis) return 0; } -/** - * adis_probe_trigger() - Sets up trigger for a adis device - * @adis: The adis device - * @indio_dev: The IIO device - * - * Returns 0 on success or a negative error code - * - * adis_remove_trigger() should be used to free the trigger. - */ -int adis_probe_trigger(struct adis *adis, struct iio_dev *indio_dev) -{ - int ret; - - adis->trig = iio_trigger_alloc("%s-dev%d", indio_dev->name, - indio_dev->id); - if (adis->trig == NULL) - return -ENOMEM; - - adis_trigger_setup(adis); - - ret = adis_validate_irq_flag(adis); - if (ret) - return ret; - - ret = request_irq(adis->spi->irq, - &iio_trigger_generic_data_rdy_poll, - adis->irq_flag, - indio_dev->name, - adis->trig); - if (ret) - goto error_free_trig; - - ret = iio_trigger_register(adis->trig); - - indio_dev->trig = iio_trigger_get(adis->trig); - if (ret) - goto error_free_irq; - - return 0; - -error_free_irq: - free_irq(adis->spi->irq, adis->trig); -error_free_trig: - iio_trigger_free(adis->trig); - return ret; -} -EXPORT_SYMBOL_GPL(adis_probe_trigger); /** * devm_adis_probe_trigger() - Sets up trigger for a managed adis device @@ -137,16 +90,3 @@ int devm_adis_probe_trigger(struct adis *adis, struct iio_dev *indio_dev) } EXPORT_SYMBOL_GPL(devm_adis_probe_trigger); -/** - * adis_remove_trigger() - Remove trigger for a adis devices - * @adis: The adis device - * - * Removes the trigger previously registered with adis_probe_trigger(). - */ -void adis_remove_trigger(struct adis *adis) -{ - iio_trigger_unregister(adis->trig); - free_irq(adis->spi->irq, adis->trig); - iio_trigger_free(adis->trig); -} -EXPORT_SYMBOL_GPL(adis_remove_trigger); diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index 3fee3947f772..18a1898e3e34 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -1475,22 +1475,14 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name, } st->vdd_supply = devm_regulator_get(dev, "vdd"); - if (IS_ERR(st->vdd_supply)) { - if (PTR_ERR(st->vdd_supply) != -EPROBE_DEFER) - dev_err(dev, "Failed to get vdd regulator %d\n", - (int)PTR_ERR(st->vdd_supply)); - - return PTR_ERR(st->vdd_supply); - } + if (IS_ERR(st->vdd_supply)) + return dev_err_probe(dev, PTR_ERR(st->vdd_supply), + "Failed to get vdd regulator\n"); st->vddio_supply = devm_regulator_get(dev, "vddio"); - if (IS_ERR(st->vddio_supply)) { - if (PTR_ERR(st->vddio_supply) != -EPROBE_DEFER) - dev_err(dev, "Failed to get vddio regulator %d\n", - (int)PTR_ERR(st->vddio_supply)); - - return PTR_ERR(st->vddio_supply); - } + if (IS_ERR(st->vddio_supply)) + return dev_err_probe(dev, PTR_ERR(st->vddio_supply), + "Failed to get vddio regulator\n"); result = regulator_enable(st->vdd_supply); if (result) { diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h index cd38b3fccc7b..eb522b38acf3 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h @@ -122,6 +122,13 @@ struct inv_mpu6050_chip_config { u8 user_ctrl; }; +/* + * Maximum of 6 + 6 + 2 + 7 (for MPU9x50) = 21 round up to 24 and plus 8. + * May be less if fewer channels are enabled, as long as the timestamp + * remains 8 byte aligned + */ +#define INV_MPU6050_OUTPUT_DATA_SIZE 32 + /** * struct inv_mpu6050_hw - Other important hardware information. * @whoami: Self identification byte from WHO_AM_I register @@ -165,6 +172,7 @@ struct inv_mpu6050_hw { * @magn_raw_to_gauss: coefficient to convert mag raw value to Gauss. * @magn_orient: magnetometer sensor chip orientation if available. * @suspended_sensors: sensors mask of sensors turned off for suspend + * @data: dma safe buffer used for bulk reads. */ struct inv_mpu6050_state { struct mutex lock; @@ -190,6 +198,7 @@ struct inv_mpu6050_state { s32 magn_raw_to_gauss[3]; struct iio_mount_matrix magn_orient; unsigned int suspended_sensors; + u8 data[INV_MPU6050_OUTPUT_DATA_SIZE] ____cacheline_aligned; }; /*register and associated bit definition*/ @@ -334,9 +343,6 @@ struct inv_mpu6050_state { #define INV_ICM20608_TEMP_OFFSET 8170 #define INV_ICM20608_TEMP_SCALE 3059976 -/* 6 + 6 + 2 + 7 (for MPU9x50) = 21 round up to 24 and plus 8 */ -#define INV_MPU6050_OUTPUT_DATA_SIZE 32 - #define INV_MPU6050_REG_INT_PIN_CFG 0x37 #define INV_MPU6050_ACTIVE_HIGH 0x00 #define INV_MPU6050_ACTIVE_LOW 0x80 diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c index b533fa2dad0a..45c37525c2f1 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c @@ -13,7 +13,6 @@ #include <linux/interrupt.h> #include <linux/poll.h> #include <linux/math64.h> -#include <asm/unaligned.h> #include "inv_mpu_iio.h" /** @@ -121,7 +120,6 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p) struct inv_mpu6050_state *st = iio_priv(indio_dev); size_t bytes_per_datum; int result; - u8 data[INV_MPU6050_OUTPUT_DATA_SIZE]; u16 fifo_count; s64 timestamp; int int_status; @@ -160,11 +158,11 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p) * read fifo_count register to know how many bytes are inside the FIFO * right now */ - result = regmap_bulk_read(st->map, st->reg->fifo_count_h, data, - INV_MPU6050_FIFO_COUNT_BYTE); + result = regmap_bulk_read(st->map, st->reg->fifo_count_h, + st->data, INV_MPU6050_FIFO_COUNT_BYTE); if (result) goto end_session; - fifo_count = get_unaligned_be16(&data[0]); + fifo_count = be16_to_cpup((__be16 *)&st->data[0]); /* * Handle fifo overflow by resetting fifo. @@ -181,8 +179,8 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p) nb = fifo_count / bytes_per_datum; inv_mpu6050_update_period(st, pf->timestamp, nb); for (i = 0; i < nb; ++i) { - result = regmap_bulk_read(st->map, st->reg->fifo_r_w, - data, bytes_per_datum); + result = regmap_noinc_read(st->map, st->reg->fifo_r_w, + st->data, bytes_per_datum); if (result) goto flush_fifo; /* skip first samples if needed */ @@ -191,7 +189,7 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p) continue; } timestamp = inv_mpu6050_get_timestamp(st); - iio_push_to_buffers_with_timestamp(indio_dev, data, timestamp); + iio_push_to_buffers_with_timestamp(indio_dev, st->data, timestamp); } end_session: diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h index d80ba2e688ed..9275346a9cc1 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx.h @@ -383,6 +383,7 @@ struct st_lsm6dsx_sensor { * @iio_devs: Pointers to acc/gyro iio_dev instances. * @settings: Pointer to the specific sensor settings in use. * @orientation: sensor chip orientation relative to main hardware. + * @scan: Temporary buffers used to align data before iio_push_to_buffers() */ struct st_lsm6dsx_hw { struct device *dev; @@ -411,6 +412,11 @@ struct st_lsm6dsx_hw { const struct st_lsm6dsx_settings *settings; struct iio_mount_matrix orientation; + /* Ensure natural alignment of buffer elements */ + struct { + __le16 channels[3]; + s64 ts __aligned(8); + } scan[3]; }; static __maybe_unused const struct iio_event_spec st_lsm6dsx_event = { diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c index 7de10bd636ea..12ed0a2e55e4 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c @@ -353,9 +353,6 @@ int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) int err, sip, acc_sip, gyro_sip, ts_sip, ext_sip, read_len, offset; u16 fifo_len, pattern_len = hw->sip * ST_LSM6DSX_SAMPLE_SIZE; u16 fifo_diff_mask = hw->settings->fifo_ops.fifo_diff.mask; - u8 gyro_buff[ST_LSM6DSX_IIO_BUFF_SIZE]; - u8 acc_buff[ST_LSM6DSX_IIO_BUFF_SIZE]; - u8 ext_buff[ST_LSM6DSX_IIO_BUFF_SIZE]; bool reset_ts = false; __le16 fifo_status; s64 ts = 0; @@ -416,19 +413,22 @@ int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) while (acc_sip > 0 || gyro_sip > 0 || ext_sip > 0) { if (gyro_sip > 0 && !(sip % gyro_sensor->decimator)) { - memcpy(gyro_buff, &hw->buff[offset], - ST_LSM6DSX_SAMPLE_SIZE); - offset += ST_LSM6DSX_SAMPLE_SIZE; + memcpy(hw->scan[ST_LSM6DSX_ID_GYRO].channels, + &hw->buff[offset], + sizeof(hw->scan[ST_LSM6DSX_ID_GYRO].channels)); + offset += sizeof(hw->scan[ST_LSM6DSX_ID_GYRO].channels); } if (acc_sip > 0 && !(sip % acc_sensor->decimator)) { - memcpy(acc_buff, &hw->buff[offset], - ST_LSM6DSX_SAMPLE_SIZE); - offset += ST_LSM6DSX_SAMPLE_SIZE; + memcpy(hw->scan[ST_LSM6DSX_ID_ACC].channels, + &hw->buff[offset], + sizeof(hw->scan[ST_LSM6DSX_ID_ACC].channels)); + offset += sizeof(hw->scan[ST_LSM6DSX_ID_ACC].channels); } if (ext_sip > 0 && !(sip % ext_sensor->decimator)) { - memcpy(ext_buff, &hw->buff[offset], - ST_LSM6DSX_SAMPLE_SIZE); - offset += ST_LSM6DSX_SAMPLE_SIZE; + memcpy(hw->scan[ST_LSM6DSX_ID_EXT0].channels, + &hw->buff[offset], + sizeof(hw->scan[ST_LSM6DSX_ID_EXT0].channels)); + offset += sizeof(hw->scan[ST_LSM6DSX_ID_EXT0].channels); } if (ts_sip-- > 0) { @@ -458,19 +458,22 @@ int st_lsm6dsx_read_fifo(struct st_lsm6dsx_hw *hw) if (gyro_sip > 0 && !(sip % gyro_sensor->decimator)) { iio_push_to_buffers_with_timestamp( hw->iio_devs[ST_LSM6DSX_ID_GYRO], - gyro_buff, gyro_sensor->ts_ref + ts); + &hw->scan[ST_LSM6DSX_ID_GYRO], + gyro_sensor->ts_ref + ts); gyro_sip--; } if (acc_sip > 0 && !(sip % acc_sensor->decimator)) { iio_push_to_buffers_with_timestamp( hw->iio_devs[ST_LSM6DSX_ID_ACC], - acc_buff, acc_sensor->ts_ref + ts); + &hw->scan[ST_LSM6DSX_ID_ACC], + acc_sensor->ts_ref + ts); acc_sip--; } if (ext_sip > 0 && !(sip % ext_sensor->decimator)) { iio_push_to_buffers_with_timestamp( hw->iio_devs[ST_LSM6DSX_ID_EXT0], - ext_buff, ext_sensor->ts_ref + ts); + &hw->scan[ST_LSM6DSX_ID_EXT0], + ext_sensor->ts_ref + ts); ext_sip--; } sip++; @@ -555,7 +558,14 @@ int st_lsm6dsx_read_tagged_fifo(struct st_lsm6dsx_hw *hw) { u16 pattern_len = hw->sip * ST_LSM6DSX_TAGGED_SAMPLE_SIZE; u16 fifo_len, fifo_diff_mask; - u8 iio_buff[ST_LSM6DSX_IIO_BUFF_SIZE], tag; + /* + * Alignment needed as this can ultimately be passed to a + * call to iio_push_to_buffers_with_timestamp() which + * must be passed a buffer that is aligned to 8 bytes so + * as to allow insertion of a naturally aligned timestamp. + */ + u8 iio_buff[ST_LSM6DSX_IIO_BUFF_SIZE] __aligned(8); + u8 tag; bool reset_ts = false; int i, err, read_len; __le16 fifo_status; diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c index 346c24281d26..42f485634d04 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c @@ -157,10 +157,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x20, .mask = GENMASK(4, 3), }, - .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, - .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, - .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, - .fs_avl[3] = { IIO_G_TO_M_S_2(732), 0x1 }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61000), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(732000), 0x1 }, .fs_len = 4, }, [ST_LSM6DSX_ID_GYRO] = { @@ -169,9 +169,9 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .mask = GENMASK(4, 3), }, - .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, - .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, - .fs_avl[2] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750000), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(70000000), 0x3 }, .fs_len = 3, }, }, @@ -259,10 +259,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x10, .mask = GENMASK(3, 2), }, - .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, - .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, - .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, - .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61000), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 }, .fs_len = 4, }, [ST_LSM6DSX_ID_GYRO] = { @@ -270,10 +270,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x11, .mask = GENMASK(3, 2), }, - .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, - .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, - .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, - .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750000), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 }, + .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 }, .fs_len = 4, }, }, @@ -425,10 +425,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x10, .mask = GENMASK(3, 2), }, - .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, - .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, - .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, - .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61000), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 }, .fs_len = 4, }, [ST_LSM6DSX_ID_GYRO] = { @@ -436,10 +436,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x11, .mask = GENMASK(3, 2), }, - .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, - .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, - .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, - .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750000), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 }, + .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 }, .fs_len = 4, }, }, @@ -600,10 +600,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x10, .mask = GENMASK(3, 2), }, - .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, - .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, - .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, - .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61000), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 }, .fs_len = 4, }, [ST_LSM6DSX_ID_GYRO] = { @@ -611,10 +611,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x11, .mask = GENMASK(3, 2), }, - .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, - .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, - .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, - .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750000), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 }, + .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 }, .fs_len = 4, }, }, @@ -816,10 +816,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x10, .mask = GENMASK(3, 2), }, - .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, - .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, - .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, - .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61000), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 }, .fs_len = 4, }, [ST_LSM6DSX_ID_GYRO] = { @@ -827,10 +827,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x11, .mask = GENMASK(3, 2), }, - .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, - .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, - .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, - .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750000), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 }, + .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 }, .fs_len = 4, }, }, @@ -1021,10 +1021,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x10, .mask = GENMASK(3, 2), }, - .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, - .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, - .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, - .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61000), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 }, .fs_len = 4, }, [ST_LSM6DSX_ID_GYRO] = { @@ -1032,10 +1032,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x11, .mask = GENMASK(3, 2), }, - .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, - .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, - .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, - .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750000), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 }, + .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 }, .fs_len = 4, }, }, @@ -1200,10 +1200,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x10, .mask = GENMASK(3, 2), }, - .fs_avl[0] = { IIO_G_TO_M_S_2(61), 0x0 }, - .fs_avl[1] = { IIO_G_TO_M_S_2(122), 0x2 }, - .fs_avl[2] = { IIO_G_TO_M_S_2(244), 0x3 }, - .fs_avl[3] = { IIO_G_TO_M_S_2(488), 0x1 }, + .fs_avl[0] = { IIO_G_TO_M_S_2(61000), 0x0 }, + .fs_avl[1] = { IIO_G_TO_M_S_2(122000), 0x2 }, + .fs_avl[2] = { IIO_G_TO_M_S_2(244000), 0x3 }, + .fs_avl[3] = { IIO_G_TO_M_S_2(488000), 0x1 }, .fs_len = 4, }, [ST_LSM6DSX_ID_GYRO] = { @@ -1211,10 +1211,10 @@ static const struct st_lsm6dsx_settings st_lsm6dsx_sensor_settings[] = { .addr = 0x11, .mask = GENMASK(3, 2), }, - .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750), 0x0 }, - .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500), 0x1 }, - .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000), 0x2 }, - .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000), 0x3 }, + .fs_avl[0] = { IIO_DEGREE_TO_RAD(8750000), 0x0 }, + .fs_avl[1] = { IIO_DEGREE_TO_RAD(17500000), 0x1 }, + .fs_avl[2] = { IIO_DEGREE_TO_RAD(35000000), 0x2 }, + .fs_avl[3] = { IIO_DEGREE_TO_RAD(70000000), 0x3 }, .fs_len = 4, }, }, @@ -1598,7 +1598,7 @@ static int st_lsm6dsx_read_raw(struct iio_dev *iio_dev, case IIO_CHAN_INFO_SCALE: *val = 0; *val2 = sensor->gain; - ret = IIO_VAL_INT_PLUS_MICRO; + ret = IIO_VAL_INT_PLUS_NANO; break; default: ret = -EINVAL; @@ -1836,13 +1836,31 @@ static ssize_t st_lsm6dsx_sysfs_scale_avail(struct device *dev, fs_table = &hw->settings->fs_table[sensor->id]; for (i = 0; i < fs_table->fs_len; i++) - len += scnprintf(buf + len, PAGE_SIZE - len, "0.%06u ", + len += scnprintf(buf + len, PAGE_SIZE - len, "0.%09u ", fs_table->fs_avl[i].gain); buf[len - 1] = '\n'; return len; } +static int st_lsm6dsx_write_raw_get_fmt(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + long mask) +{ + switch (mask) { + case IIO_CHAN_INFO_SCALE: + switch (chan->type) { + case IIO_ANGL_VEL: + case IIO_ACCEL: + return IIO_VAL_INT_PLUS_NANO; + default: + return IIO_VAL_INT_PLUS_MICRO; + } + default: + return IIO_VAL_INT_PLUS_MICRO; + } +} + static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(st_lsm6dsx_sysfs_sampling_frequency_avail); static IIO_DEVICE_ATTR(in_accel_scale_available, 0444, st_lsm6dsx_sysfs_scale_avail, NULL, 0); @@ -1868,6 +1886,7 @@ static const struct iio_info st_lsm6dsx_acc_info = { .read_event_config = st_lsm6dsx_read_event_config, .write_event_config = st_lsm6dsx_write_event_config, .hwfifo_set_watermark = st_lsm6dsx_set_watermark, + .write_raw_get_fmt = st_lsm6dsx_write_raw_get_fmt, }; static struct attribute *st_lsm6dsx_gyro_attributes[] = { @@ -1885,6 +1904,7 @@ static const struct iio_info st_lsm6dsx_gyro_info = { .read_raw = st_lsm6dsx_read_raw, .write_raw = st_lsm6dsx_write_raw, .hwfifo_set_watermark = st_lsm6dsx_set_watermark, + .write_raw_get_fmt = st_lsm6dsx_write_raw_get_fmt, }; static int st_lsm6dsx_get_drdy_pin(struct st_lsm6dsx_hw *hw, int *drdy_pin) diff --git a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c index ed83471dc7dd..8c8d8870ca07 100644 --- a/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c +++ b/drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_shub.c @@ -313,6 +313,8 @@ st_lsm6dsx_shub_read(struct st_lsm6dsx_sensor *sensor, u8 addr, err = st_lsm6dsx_shub_read_output(hw, data, len & ST_LS6DSX_READ_OP_MASK); + if (err < 0) + return err; st_lsm6dsx_shub_master_enable(sensor, false); diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c index a7d7e5143ed2..a4f6bb96d4f4 100644 --- a/drivers/iio/industrialio-buffer.c +++ b/drivers/iio/industrialio-buffer.c @@ -1264,26 +1264,14 @@ static struct attribute *iio_buffer_attrs[] = { &dev_attr_data_available.attr, }; -int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev) +static int __iio_buffer_alloc_sysfs_and_mask(struct iio_buffer *buffer, + struct iio_dev *indio_dev) { struct iio_dev_attr *p; struct attribute **attr; - struct iio_buffer *buffer = indio_dev->buffer; int ret, i, attrn, attrcount; const struct iio_chan_spec *channels; - channels = indio_dev->channels; - if (channels) { - int ml = indio_dev->masklength; - - for (i = 0; i < indio_dev->num_channels; i++) - ml = max(ml, channels[i].scan_index + 1); - indio_dev->masklength = ml; - } - - if (!buffer) - return 0; - attrcount = 0; if (buffer->attrs) { while (buffer->attrs[attrcount] != NULL) @@ -1367,19 +1355,45 @@ error_cleanup_dynamic: return ret; } -void iio_buffer_free_sysfs_and_mask(struct iio_dev *indio_dev) +int iio_buffer_alloc_sysfs_and_mask(struct iio_dev *indio_dev) { struct iio_buffer *buffer = indio_dev->buffer; + const struct iio_chan_spec *channels; + int i; + + channels = indio_dev->channels; + if (channels) { + int ml = indio_dev->masklength; + + for (i = 0; i < indio_dev->num_channels; i++) + ml = max(ml, channels[i].scan_index + 1); + indio_dev->masklength = ml; + } if (!buffer) - return; + return 0; + + return __iio_buffer_alloc_sysfs_and_mask(buffer, indio_dev); +} +static void __iio_buffer_free_sysfs_and_mask(struct iio_buffer *buffer) +{ bitmap_free(buffer->scan_mask); kfree(buffer->buffer_group.attrs); kfree(buffer->scan_el_group.attrs); iio_free_chan_devattr_list(&buffer->scan_el_dev_attr_list); } +void iio_buffer_free_sysfs_and_mask(struct iio_dev *indio_dev) +{ + struct iio_buffer *buffer = indio_dev->buffer; + + if (!buffer) + return; + + __iio_buffer_free_sysfs_and_mask(buffer); +} + /** * iio_validate_scan_mask_onehot() - Validates that exactly one channel is selected * @indio_dev: the iio device diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index cdcd16f19500..261d3b17edc9 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -133,6 +133,7 @@ static const char * const iio_modifier_names[] = { [IIO_MOD_PM10] = "pm10", [IIO_MOD_ETHANOL] = "ethanol", [IIO_MOD_H2] = "h2", + [IIO_MOD_O2] = "o2", }; /* relies on pairs of these shared then separate */ @@ -165,10 +166,11 @@ static const char * const iio_chan_info_postfix[] = { [IIO_CHAN_INFO_CALIBEMISSIVITY] = "calibemissivity", [IIO_CHAN_INFO_OVERSAMPLING_RATIO] = "oversampling_ratio", [IIO_CHAN_INFO_THERMOCOUPLE_TYPE] = "thermocouple_type", + [IIO_CHAN_INFO_CALIBAMBIENT] = "calibambient", }; #if defined(CONFIG_DEBUG_FS) -/** +/* * There's also a CONFIG_DEBUG_FS guard in include/linux/iio/iio.h for * iio_get_debugfs_dentry() to make it inline if CONFIG_DEBUG_FS is undefined */ @@ -1523,6 +1525,7 @@ struct device_type iio_device_type = { /** * iio_device_alloc() - allocate an iio_dev from a driver + * @parent: Parent device. * @sizeof_priv: Space to allocate for private structure. **/ struct iio_dev *iio_device_alloc(struct device *parent, int sizeof_priv) diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c index 2ab4d4c44427..99ba657b8568 100644 --- a/drivers/iio/industrialio-event.c +++ b/drivers/iio/industrialio-event.c @@ -477,6 +477,7 @@ static const char *iio_event_group_name = "events"; int iio_device_register_eventset(struct iio_dev *indio_dev) { struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev); + struct iio_event_interface *ev_int; struct iio_dev_attr *p; int ret = 0, attrcount_orig = 0, attrcount, attrn; struct attribute **attr; @@ -485,14 +486,15 @@ int iio_device_register_eventset(struct iio_dev *indio_dev) iio_check_for_dynamic_events(indio_dev))) return 0; - iio_dev_opaque->event_interface = - kzalloc(sizeof(struct iio_event_interface), GFP_KERNEL); - if (iio_dev_opaque->event_interface == NULL) + ev_int = kzalloc(sizeof(struct iio_event_interface), GFP_KERNEL); + if (ev_int == NULL) return -ENOMEM; - INIT_LIST_HEAD(&iio_dev_opaque->event_interface->dev_attr_list); + iio_dev_opaque->event_interface = ev_int; - iio_setup_ev_int(iio_dev_opaque->event_interface); + INIT_LIST_HEAD(&ev_int->dev_attr_list); + + iio_setup_ev_int(ev_int); if (indio_dev->info->event_attrs != NULL) { attr = indio_dev->info->event_attrs->attrs; while (*attr++ != NULL) @@ -506,34 +508,29 @@ int iio_device_register_eventset(struct iio_dev *indio_dev) attrcount += ret; } - iio_dev_opaque->event_interface->group.name = iio_event_group_name; - iio_dev_opaque->event_interface->group.attrs = kcalloc(attrcount + 1, - sizeof(iio_dev_opaque->event_interface->group.attrs[0]), - GFP_KERNEL); - if (iio_dev_opaque->event_interface->group.attrs == NULL) { + ev_int->group.name = iio_event_group_name; + ev_int->group.attrs = kcalloc(attrcount + 1, + sizeof(ev_int->group.attrs[0]), + GFP_KERNEL); + if (ev_int->group.attrs == NULL) { ret = -ENOMEM; goto error_free_setup_event_lines; } if (indio_dev->info->event_attrs) - memcpy(iio_dev_opaque->event_interface->group.attrs, + memcpy(ev_int->group.attrs, indio_dev->info->event_attrs->attrs, - sizeof(iio_dev_opaque->event_interface->group.attrs[0]) - *attrcount_orig); + sizeof(ev_int->group.attrs[0]) * attrcount_orig); attrn = attrcount_orig; /* Add all elements from the list. */ - list_for_each_entry(p, - &iio_dev_opaque->event_interface->dev_attr_list, - l) - iio_dev_opaque->event_interface->group.attrs[attrn++] = - &p->dev_attr.attr; - indio_dev->groups[indio_dev->groupcounter++] = - &iio_dev_opaque->event_interface->group; + list_for_each_entry(p, &ev_int->dev_attr_list, l) + ev_int->group.attrs[attrn++] = &p->dev_attr.attr; + indio_dev->groups[indio_dev->groupcounter++] = &ev_int->group; return 0; error_free_setup_event_lines: - iio_free_chan_devattr_list(&iio_dev_opaque->event_interface->dev_attr_list); - kfree(iio_dev_opaque->event_interface); + iio_free_chan_devattr_list(&ev_int->dev_attr_list); + kfree(ev_int); iio_dev_opaque->event_interface = NULL; return ret; } @@ -557,10 +554,12 @@ void iio_device_wakeup_eventset(struct iio_dev *indio_dev) void iio_device_unregister_eventset(struct iio_dev *indio_dev) { struct iio_dev_opaque *iio_dev_opaque = to_iio_dev_opaque(indio_dev); + struct iio_event_interface *ev_int = iio_dev_opaque->event_interface; - if (iio_dev_opaque->event_interface == NULL) + if (ev_int == NULL) return; - iio_free_chan_devattr_list(&iio_dev_opaque->event_interface->dev_attr_list); - kfree(iio_dev_opaque->event_interface->group.attrs); - kfree(iio_dev_opaque->event_interface); + iio_free_chan_devattr_list(&ev_int->dev_attr_list); + kfree(ev_int->group.attrs); + kfree(ev_int); + iio_dev_opaque->event_interface = NULL; } diff --git a/drivers/iio/industrialio-trigger.c b/drivers/iio/industrialio-trigger.c index 6f16357fd732..583bb51f65a7 100644 --- a/drivers/iio/industrialio-trigger.c +++ b/drivers/iio/industrialio-trigger.c @@ -516,7 +516,8 @@ static void iio_trig_subirqunmask(struct irq_data *d) trig->subirqs[d->irq - trig->subirq_base].enabled = true; } -static struct iio_trigger *viio_trigger_alloc(const char *fmt, va_list vargs) +static __printf(1, 0) +struct iio_trigger *viio_trigger_alloc(const char *fmt, va_list vargs) { struct iio_trigger *trig; int i; diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index 182bd18c4bb2..cade6dc0305b 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -86,6 +86,21 @@ config APDS9960 To compile this driver as a module, choose M here: the module will be called apds9960 +config AS73211 + tristate "AMS AS73211 XYZ color sensor" + depends on I2C + select IIO_BUFFER + select IIO_TRIGGERED_BUFFER + help + If you say yes here you get support for the AMS AS73211 + JENCOLOR(R) Digital XYZ Sensor. + + For triggered measurements, you will need an additional trigger driver + like IIO_HRTIMER_TRIGGER or IIO_SYSFS_TRIGGER. + + This driver can also be built as a module. If so, the module + will be called as73211. + config BH1750 tristate "ROHM BH1750 ambient light sensor" depends on I2C diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile index d1c8aa30b9a8..ea376deaca54 100644 --- a/drivers/iio/light/Makefile +++ b/drivers/iio/light/Makefile @@ -11,6 +11,7 @@ obj-$(CONFIG_AL3010) += al3010.o obj-$(CONFIG_AL3320A) += al3320a.o obj-$(CONFIG_APDS9300) += apds9300.o obj-$(CONFIG_APDS9960) += apds9960.o +obj-$(CONFIG_AS73211) += as73211.o obj-$(CONFIG_BH1750) += bh1750.o obj-$(CONFIG_BH1780) += bh1780.o obj-$(CONFIG_CM32181) += cm32181.o diff --git a/drivers/iio/light/as73211.c b/drivers/iio/light/as73211.c new file mode 100644 index 000000000000..7b32dfaee9b3 --- /dev/null +++ b/drivers/iio/light/as73211.c @@ -0,0 +1,800 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Support for AMS AS73211 JENCOLOR(R) Digital XYZ Sensor + * + * Author: Christian Eggers <ceggers@arri.de> + * + * Copyright (c) 2020 ARRI Lighting + * + * Color light sensor with 16-bit channels for x, y, z and temperature); + * 7-bit I2C slave address 0x74 .. 0x77. + * + * Datasheet: https://ams.com/documents/20143/36005/AS73211_DS000556_3-01.pdf + */ + +#include <linux/bitfield.h> +#include <linux/completion.h> +#include <linux/delay.h> +#include <linux/i2c.h> +#include <linux/iio/buffer.h> +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> +#include <linux/iio/trigger_consumer.h> +#include <linux/iio/triggered_buffer.h> +#include <linux/module.h> +#include <linux/mutex.h> +#include <linux/pm.h> + +#define HZ_PER_KHZ 1000 + +#define AS73211_DRV_NAME "as73211" + +/* AS73211 configuration registers */ +#define AS73211_REG_OSR 0x0 +#define AS73211_REG_AGEN 0x2 +#define AS73211_REG_CREG1 0x6 +#define AS73211_REG_CREG2 0x7 +#define AS73211_REG_CREG3 0x8 + +/* AS73211 output register bank */ +#define AS73211_OUT_OSR_STATUS 0 +#define AS73211_OUT_TEMP 1 +#define AS73211_OUT_MRES1 2 +#define AS73211_OUT_MRES2 3 +#define AS73211_OUT_MRES3 4 + +#define AS73211_OSR_SS BIT(7) +#define AS73211_OSR_PD BIT(6) +#define AS73211_OSR_SW_RES BIT(3) +#define AS73211_OSR_DOS_MASK GENMASK(2, 0) +#define AS73211_OSR_DOS_CONFIG FIELD_PREP(AS73211_OSR_DOS_MASK, 0x2) +#define AS73211_OSR_DOS_MEASURE FIELD_PREP(AS73211_OSR_DOS_MASK, 0x3) + +#define AS73211_AGEN_DEVID_MASK GENMASK(7, 4) +#define AS73211_AGEN_DEVID(x) FIELD_PREP(AS73211_AGEN_DEVID_MASK, (x)) +#define AS73211_AGEN_MUT_MASK GENMASK(3, 0) +#define AS73211_AGEN_MUT(x) FIELD_PREP(AS73211_AGEN_MUT_MASK, (x)) + +#define AS73211_CREG1_GAIN_MASK GENMASK(7, 4) +#define AS73211_CREG1_GAIN_1 11 +#define AS73211_CREG1_TIME_MASK GENMASK(3, 0) + +#define AS73211_CREG3_CCLK_MASK GENMASK(1, 0) + +#define AS73211_OSR_STATUS_OUTCONVOF BIT(15) +#define AS73211_OSR_STATUS_MRESOF BIT(14) +#define AS73211_OSR_STATUS_ADCOF BIT(13) +#define AS73211_OSR_STATUS_LDATA BIT(12) +#define AS73211_OSR_STATUS_NDATA BIT(11) +#define AS73211_OSR_STATUS_NOTREADY BIT(10) + +#define AS73211_SAMPLE_FREQ_BASE 1024000 + +#define AS73211_SAMPLE_TIME_NUM 15 +#define AS73211_SAMPLE_TIME_MAX_MS BIT(AS73211_SAMPLE_TIME_NUM - 1) + +/* Available sample frequencies are 1.024MHz multiplied by powers of two. */ +static const int as73211_samp_freq_avail[] = { + AS73211_SAMPLE_FREQ_BASE * 1, + AS73211_SAMPLE_FREQ_BASE * 2, + AS73211_SAMPLE_FREQ_BASE * 4, + AS73211_SAMPLE_FREQ_BASE * 8, +}; + +static const int as73211_hardwaregain_avail[] = { + 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, +}; + +/** + * struct as73211_data - Instance data for one AS73211 + * @client: I2C client. + * @osr: Cached Operational State Register. + * @creg1: Cached Configuration Register 1. + * @creg2: Cached Configuration Register 2. + * @creg3: Cached Configuration Register 3. + * @mutex: Keeps cached registers in sync with the device. + * @completion: Completion to wait for interrupt. + * @int_time_avail: Available integration times (depend on sampling frequency). + */ +struct as73211_data { + struct i2c_client *client; + u8 osr; + u8 creg1; + u8 creg2; + u8 creg3; + struct mutex mutex; + struct completion completion; + int int_time_avail[AS73211_SAMPLE_TIME_NUM * 2]; +}; + +#define AS73211_COLOR_CHANNEL(_color, _si, _addr) { \ + .type = IIO_INTENSITY, \ + .modified = 1, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE), \ + .info_mask_shared_by_type = \ + BIT(IIO_CHAN_INFO_SAMP_FREQ) | \ + BIT(IIO_CHAN_INFO_HARDWAREGAIN) | \ + BIT(IIO_CHAN_INFO_INT_TIME), \ + .info_mask_shared_by_type_available = \ + BIT(IIO_CHAN_INFO_SAMP_FREQ) | \ + BIT(IIO_CHAN_INFO_HARDWAREGAIN) | \ + BIT(IIO_CHAN_INFO_INT_TIME), \ + .channel2 = IIO_MOD_##_color, \ + .address = _addr, \ + .scan_index = _si, \ + .scan_type = { \ + .sign = 'u', \ + .realbits = 16, \ + .storagebits = 16, \ + .endianness = IIO_LE, \ + }, \ +} + +#define AS73211_OFFSET_TEMP_INT (-66) +#define AS73211_OFFSET_TEMP_MICRO 900000 +#define AS73211_SCALE_TEMP_INT 0 +#define AS73211_SCALE_TEMP_MICRO 50000 + +#define AS73211_SCALE_X 277071108 /* nW/m^2 */ +#define AS73211_SCALE_Y 298384270 /* nW/m^2 */ +#define AS73211_SCALE_Z 160241927 /* nW/m^2 */ + +/* Channel order MUST match devices result register order */ +#define AS73211_SCAN_INDEX_TEMP 0 +#define AS73211_SCAN_INDEX_X 1 +#define AS73211_SCAN_INDEX_Y 2 +#define AS73211_SCAN_INDEX_Z 3 +#define AS73211_SCAN_INDEX_TS 4 + +#define AS73211_SCAN_MASK_COLOR ( \ + BIT(AS73211_SCAN_INDEX_X) | \ + BIT(AS73211_SCAN_INDEX_Y) | \ + BIT(AS73211_SCAN_INDEX_Z)) + +#define AS73211_SCAN_MASK_ALL ( \ + BIT(AS73211_SCAN_INDEX_TEMP) | \ + AS73211_SCAN_MASK_COLOR) + +static const struct iio_chan_spec as73211_channels[] = { + { + .type = IIO_TEMP, + .info_mask_separate = + BIT(IIO_CHAN_INFO_RAW) | + BIT(IIO_CHAN_INFO_OFFSET) | + BIT(IIO_CHAN_INFO_SCALE), + .address = AS73211_OUT_TEMP, + .scan_index = AS73211_SCAN_INDEX_TEMP, + .scan_type = { + .sign = 'u', + .realbits = 16, + .storagebits = 16, + .endianness = IIO_LE, + } + }, + AS73211_COLOR_CHANNEL(X, AS73211_SCAN_INDEX_X, AS73211_OUT_MRES1), + AS73211_COLOR_CHANNEL(Y, AS73211_SCAN_INDEX_Y, AS73211_OUT_MRES2), + AS73211_COLOR_CHANNEL(Z, AS73211_SCAN_INDEX_Z, AS73211_OUT_MRES3), + IIO_CHAN_SOFT_TIMESTAMP(AS73211_SCAN_INDEX_TS), +}; + +static unsigned int as73211_integration_time_1024cyc(struct as73211_data *data) +{ + /* + * Return integration time in units of 1024 clock cycles. Integration time + * in CREG1 is in powers of 2 (x 1024 cycles). + */ + return BIT(FIELD_GET(AS73211_CREG1_TIME_MASK, data->creg1)); +} + +static unsigned int as73211_integration_time_us(struct as73211_data *data, + unsigned int integration_time_1024cyc) +{ + /* + * f_samp is configured in CREG3 in powers of 2 (x 1.024 MHz) + * t_cycl is configured in CREG1 in powers of 2 (x 1024 cycles) + * t_int_us = 1 / (f_samp) * t_cycl * US_PER_SEC + * = 1 / (2^CREG3_CCLK * 1,024,000) * 2^CREG1_CYCLES * 1,024 * US_PER_SEC + * = 2^(-CREG3_CCLK) * 2^CREG1_CYCLES * 1,000 + * In order to get rid of negative exponents, we extend the "fraction" + * by 2^3 (CREG3_CCLK,max = 3) + * t_int_us = 2^(3-CREG3_CCLK) * 2^CREG1_CYCLES * 125 + */ + return BIT(3 - FIELD_GET(AS73211_CREG3_CCLK_MASK, data->creg3)) * + integration_time_1024cyc * 125; +} + +static void as73211_integration_time_calc_avail(struct as73211_data *data) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(data->int_time_avail) / 2; i++) { + unsigned int time_us = as73211_integration_time_us(data, BIT(i)); + + data->int_time_avail[i * 2 + 0] = time_us / USEC_PER_SEC; + data->int_time_avail[i * 2 + 1] = time_us % USEC_PER_SEC; + } +} + +static unsigned int as73211_gain(struct as73211_data *data) +{ + /* gain can be calculated from CREG1 as 2^(11 - CREG1_GAIN) */ + return BIT(AS73211_CREG1_GAIN_1 - FIELD_GET(AS73211_CREG1_GAIN_MASK, data->creg1)); +} + +/* must be called with as73211_data::mutex held. */ +static int as73211_req_data(struct as73211_data *data) +{ + unsigned int time_us = as73211_integration_time_us(data, + as73211_integration_time_1024cyc(data)); + struct device *dev = &data->client->dev; + union i2c_smbus_data smbus_data; + u16 osr_status; + int ret; + + if (data->client->irq) + reinit_completion(&data->completion); + + /* + * During measurement, there should be no traffic on the i2c bus as the + * electrical noise would disturb the measurement process. + */ + i2c_lock_bus(data->client->adapter, I2C_LOCK_SEGMENT); + + data->osr &= ~AS73211_OSR_DOS_MASK; + data->osr |= AS73211_OSR_DOS_MEASURE | AS73211_OSR_SS; + + smbus_data.byte = data->osr; + ret = __i2c_smbus_xfer(data->client->adapter, data->client->addr, + data->client->flags, I2C_SMBUS_WRITE, + AS73211_REG_OSR, I2C_SMBUS_BYTE_DATA, &smbus_data); + if (ret < 0) { + i2c_unlock_bus(data->client->adapter, I2C_LOCK_SEGMENT); + return ret; + } + + /* + * Reset AS73211_OSR_SS (is self clearing) in order to avoid unintentional + * triggering of further measurements later. + */ + data->osr &= ~AS73211_OSR_SS; + + /* + * Add 33% extra margin for the timeout. fclk,min = fclk,typ - 27%. + */ + time_us += time_us / 3; + if (data->client->irq) { + ret = wait_for_completion_timeout(&data->completion, usecs_to_jiffies(time_us)); + if (!ret) { + dev_err(dev, "timeout waiting for READY IRQ\n"); + i2c_unlock_bus(data->client->adapter, I2C_LOCK_SEGMENT); + return -ETIMEDOUT; + } + } else { + /* Wait integration time */ + usleep_range(time_us, 2 * time_us); + } + + i2c_unlock_bus(data->client->adapter, I2C_LOCK_SEGMENT); + + ret = i2c_smbus_read_word_data(data->client, AS73211_OUT_OSR_STATUS); + if (ret < 0) + return ret; + + osr_status = ret; + if (osr_status != (AS73211_OSR_DOS_MEASURE | AS73211_OSR_STATUS_NDATA)) { + if (osr_status & AS73211_OSR_SS) { + dev_err(dev, "%s() Measurement has not stopped\n", __func__); + return -ETIME; + } + if (osr_status & AS73211_OSR_STATUS_NOTREADY) { + dev_err(dev, "%s() Data is not ready\n", __func__); + return -ENODATA; + } + if (!(osr_status & AS73211_OSR_STATUS_NDATA)) { + dev_err(dev, "%s() No new data available\n", __func__); + return -ENODATA; + } + if (osr_status & AS73211_OSR_STATUS_LDATA) { + dev_err(dev, "%s() Result buffer overrun\n", __func__); + return -ENOBUFS; + } + if (osr_status & AS73211_OSR_STATUS_ADCOF) { + dev_err(dev, "%s() ADC overflow\n", __func__); + return -EOVERFLOW; + } + if (osr_status & AS73211_OSR_STATUS_MRESOF) { + dev_err(dev, "%s() Measurement result overflow\n", __func__); + return -EOVERFLOW; + } + if (osr_status & AS73211_OSR_STATUS_OUTCONVOF) { + dev_err(dev, "%s() Timer overflow\n", __func__); + return -EOVERFLOW; + } + dev_err(dev, "%s() Unexpected status value\n", __func__); + return -EIO; + } + + return 0; +} + +static int as73211_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct as73211_data *data = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_RAW: { + int ret; + + ret = iio_device_claim_direct_mode(indio_dev); + if (ret < 0) + return ret; + + ret = as73211_req_data(data); + if (ret < 0) { + iio_device_release_direct_mode(indio_dev); + return ret; + } + + ret = i2c_smbus_read_word_data(data->client, chan->address); + iio_device_release_direct_mode(indio_dev); + if (ret < 0) + return ret; + + *val = ret; + return IIO_VAL_INT; + } + case IIO_CHAN_INFO_OFFSET: + *val = AS73211_OFFSET_TEMP_INT; + *val2 = AS73211_OFFSET_TEMP_MICRO; + return IIO_VAL_INT_PLUS_MICRO; + + case IIO_CHAN_INFO_SCALE: + switch (chan->type) { + case IIO_TEMP: + *val = AS73211_SCALE_TEMP_INT; + *val2 = AS73211_SCALE_TEMP_MICRO; + return IIO_VAL_INT_PLUS_MICRO; + + case IIO_INTENSITY: { + unsigned int scale; + + switch (chan->channel2) { + case IIO_MOD_X: + scale = AS73211_SCALE_X; + break; + case IIO_MOD_Y: + scale = AS73211_SCALE_Y; + break; + case IIO_MOD_Z: + scale = AS73211_SCALE_Z; + break; + default: + return -EINVAL; + } + scale /= as73211_gain(data); + scale /= as73211_integration_time_1024cyc(data); + *val = scale; + return IIO_VAL_INT; + + default: + return -EINVAL; + }} + + case IIO_CHAN_INFO_SAMP_FREQ: + /* f_samp is configured in CREG3 in powers of 2 (x 1.024 MHz) */ + *val = BIT(FIELD_GET(AS73211_CREG3_CCLK_MASK, data->creg3)) * + AS73211_SAMPLE_FREQ_BASE; + return IIO_VAL_INT; + + case IIO_CHAN_INFO_HARDWAREGAIN: + *val = as73211_gain(data); + return IIO_VAL_INT; + + case IIO_CHAN_INFO_INT_TIME: { + unsigned int time_us; + + mutex_lock(&data->mutex); + time_us = as73211_integration_time_us(data, as73211_integration_time_1024cyc(data)); + mutex_unlock(&data->mutex); + *val = time_us / USEC_PER_SEC; + *val2 = time_us % USEC_PER_SEC; + return IIO_VAL_INT_PLUS_MICRO; + + default: + return -EINVAL; + }} +} + +static int as73211_read_avail(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, + const int **vals, int *type, int *length, long mask) +{ + struct as73211_data *data = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_SAMP_FREQ: + *length = ARRAY_SIZE(as73211_samp_freq_avail); + *vals = as73211_samp_freq_avail; + *type = IIO_VAL_INT; + return IIO_AVAIL_LIST; + + case IIO_CHAN_INFO_HARDWAREGAIN: + *length = ARRAY_SIZE(as73211_hardwaregain_avail); + *vals = as73211_hardwaregain_avail; + *type = IIO_VAL_INT; + return IIO_AVAIL_LIST; + + case IIO_CHAN_INFO_INT_TIME: + *length = ARRAY_SIZE(data->int_time_avail); + *vals = data->int_time_avail; + *type = IIO_VAL_INT_PLUS_MICRO; + return IIO_AVAIL_LIST; + + default: + return -EINVAL; + } +} + +static int _as73211_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan __always_unused, + int val, int val2, long mask) +{ + struct as73211_data *data = iio_priv(indio_dev); + int ret; + + switch (mask) { + case IIO_CHAN_INFO_SAMP_FREQ: { + int reg_bits, freq_kHz = val / HZ_PER_KHZ; /* 1024, 2048, ... */ + + /* val must be 1024 * 2^x */ + if (val < 0 || (freq_kHz * HZ_PER_KHZ) != val || + !is_power_of_2(freq_kHz) || val2) + return -EINVAL; + + /* f_samp is configured in CREG3 in powers of 2 (x 1.024 MHz (=2^10)) */ + reg_bits = ilog2(freq_kHz) - 10; + if (!FIELD_FIT(AS73211_CREG3_CCLK_MASK, reg_bits)) + return -EINVAL; + + data->creg3 &= ~AS73211_CREG3_CCLK_MASK; + data->creg3 |= FIELD_PREP(AS73211_CREG3_CCLK_MASK, reg_bits); + as73211_integration_time_calc_avail(data); + + ret = i2c_smbus_write_byte_data(data->client, AS73211_REG_CREG3, data->creg3); + if (ret < 0) + return ret; + + return 0; + } + case IIO_CHAN_INFO_HARDWAREGAIN: { + unsigned int reg_bits; + + if (val < 0 || !is_power_of_2(val) || val2) + return -EINVAL; + + /* gain can be calculated from CREG1 as 2^(11 - CREG1_GAIN) */ + reg_bits = AS73211_CREG1_GAIN_1 - ilog2(val); + if (!FIELD_FIT(AS73211_CREG1_GAIN_MASK, reg_bits)) + return -EINVAL; + + data->creg1 &= ~AS73211_CREG1_GAIN_MASK; + data->creg1 |= FIELD_PREP(AS73211_CREG1_GAIN_MASK, reg_bits); + + ret = i2c_smbus_write_byte_data(data->client, AS73211_REG_CREG1, data->creg1); + if (ret < 0) + return ret; + + return 0; + } + case IIO_CHAN_INFO_INT_TIME: { + int val_us = val * USEC_PER_SEC + val2; + int time_ms; + int reg_bits; + + /* f_samp is configured in CREG3 in powers of 2 (x 1.024 MHz) */ + int f_samp_1_024mhz = BIT(FIELD_GET(AS73211_CREG3_CCLK_MASK, data->creg3)); + + /* + * time_ms = time_us * US_PER_MS * f_samp_1_024mhz / MHZ_PER_HZ + * = time_us * f_samp_1_024mhz / 1000 + */ + time_ms = (val_us * f_samp_1_024mhz) / 1000; /* 1 ms, 2 ms, ... (power of two) */ + if (time_ms < 0 || !is_power_of_2(time_ms) || time_ms > AS73211_SAMPLE_TIME_MAX_MS) + return -EINVAL; + + reg_bits = ilog2(time_ms); + if (!FIELD_FIT(AS73211_CREG1_TIME_MASK, reg_bits)) + return -EINVAL; /* not possible due to previous tests */ + + data->creg1 &= ~AS73211_CREG1_TIME_MASK; + data->creg1 |= FIELD_PREP(AS73211_CREG1_TIME_MASK, reg_bits); + + ret = i2c_smbus_write_byte_data(data->client, AS73211_REG_CREG1, data->creg1); + if (ret < 0) + return ret; + + return 0; + + default: + return -EINVAL; + }} +} + +static int as73211_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct as73211_data *data = iio_priv(indio_dev); + int ret; + + mutex_lock(&data->mutex); + + ret = iio_device_claim_direct_mode(indio_dev); + if (ret < 0) + goto error_unlock; + + /* Need to switch to config mode ... */ + if ((data->osr & AS73211_OSR_DOS_MASK) != AS73211_OSR_DOS_CONFIG) { + data->osr &= ~AS73211_OSR_DOS_MASK; + data->osr |= AS73211_OSR_DOS_CONFIG; + + ret = i2c_smbus_write_byte_data(data->client, AS73211_REG_OSR, data->osr); + if (ret < 0) + goto error_release; + } + + ret = _as73211_write_raw(indio_dev, chan, val, val2, mask); + +error_release: + iio_device_release_direct_mode(indio_dev); +error_unlock: + mutex_unlock(&data->mutex); + return ret; +} + +static irqreturn_t as73211_ready_handler(int irq __always_unused, void *priv) +{ + struct as73211_data *data = iio_priv(priv); + + complete(&data->completion); + + return IRQ_HANDLED; +} + +static irqreturn_t as73211_trigger_handler(int irq __always_unused, void *p) +{ + struct iio_poll_func *pf = p; + struct iio_dev *indio_dev = pf->indio_dev; + struct as73211_data *data = iio_priv(indio_dev); + struct { + __le16 chan[4]; + s64 ts __aligned(8); + } scan; + int data_result, ret; + + mutex_lock(&data->mutex); + + data_result = as73211_req_data(data); + if (data_result < 0 && data_result != -EOVERFLOW) + goto done; /* don't push any data for errors other than EOVERFLOW */ + + if (*indio_dev->active_scan_mask == AS73211_SCAN_MASK_ALL) { + /* Optimization for reading all (color + temperature) channels */ + u8 addr = as73211_channels[0].address; + struct i2c_msg msgs[] = { + { + .addr = data->client->addr, + .flags = 0, + .len = 1, + .buf = &addr, + }, + { + .addr = data->client->addr, + .flags = I2C_M_RD, + .len = sizeof(scan.chan), + .buf = (u8 *)&scan.chan, + }, + }; + + ret = i2c_transfer(data->client->adapter, msgs, ARRAY_SIZE(msgs)); + if (ret < 0) + goto done; + } else { + /* Optimization for reading only color channels */ + + /* AS73211 starts reading at address 2 */ + ret = i2c_master_recv(data->client, + (char *)&scan.chan[1], 3 * sizeof(scan.chan[1])); + if (ret < 0) + goto done; + } + + if (data_result) { + /* + * Saturate all channels (in case of overflows). Temperature channel + * is not affected by overflows. + */ + scan.chan[1] = cpu_to_le16(U16_MAX); + scan.chan[2] = cpu_to_le16(U16_MAX); + scan.chan[3] = cpu_to_le16(U16_MAX); + } + + iio_push_to_buffers_with_timestamp(indio_dev, &scan, iio_get_time_ns(indio_dev)); + +done: + mutex_unlock(&data->mutex); + iio_trigger_notify_done(indio_dev->trig); + + return IRQ_HANDLED; +} + +static const struct iio_info as73211_info = { + .read_raw = as73211_read_raw, + .read_avail = as73211_read_avail, + .write_raw = as73211_write_raw, +}; + +static int as73211_power(struct iio_dev *indio_dev, bool state) +{ + struct as73211_data *data = iio_priv(indio_dev); + int ret; + + mutex_lock(&data->mutex); + + if (state) + data->osr &= ~AS73211_OSR_PD; + else + data->osr |= AS73211_OSR_PD; + + ret = i2c_smbus_write_byte_data(data->client, AS73211_REG_OSR, data->osr); + + mutex_unlock(&data->mutex); + + if (ret < 0) + return ret; + + return 0; +} + +static void as73211_power_disable(void *data) +{ + struct iio_dev *indio_dev = data; + + as73211_power(indio_dev, false); +} + +static int as73211_probe(struct i2c_client *client) +{ + struct device *dev = &client->dev; + struct as73211_data *data; + struct iio_dev *indio_dev; + int ret; + + indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + data = iio_priv(indio_dev); + i2c_set_clientdata(client, indio_dev); + data->client = client; + + mutex_init(&data->mutex); + init_completion(&data->completion); + + indio_dev->info = &as73211_info; + indio_dev->name = AS73211_DRV_NAME; + indio_dev->channels = as73211_channels; + indio_dev->num_channels = ARRAY_SIZE(as73211_channels); + indio_dev->modes = INDIO_DIRECT_MODE; + + ret = i2c_smbus_read_byte_data(data->client, AS73211_REG_OSR); + if (ret < 0) + return ret; + data->osr = ret; + + /* reset device */ + data->osr |= AS73211_OSR_SW_RES; + ret = i2c_smbus_write_byte_data(data->client, AS73211_REG_OSR, data->osr); + if (ret < 0) + return ret; + + ret = i2c_smbus_read_byte_data(data->client, AS73211_REG_OSR); + if (ret < 0) + return ret; + data->osr = ret; + + /* + * Reading AGEN is only possible after reset (AGEN is not available if + * device is in measurement mode). + */ + ret = i2c_smbus_read_byte_data(data->client, AS73211_REG_AGEN); + if (ret < 0) + return ret; + + /* At the time of writing this driver, only DEVID 2 and MUT 1 are known. */ + if ((ret & AS73211_AGEN_DEVID_MASK) != AS73211_AGEN_DEVID(2) || + (ret & AS73211_AGEN_MUT_MASK) != AS73211_AGEN_MUT(1)) + return -ENODEV; + + ret = i2c_smbus_read_byte_data(data->client, AS73211_REG_CREG1); + if (ret < 0) + return ret; + data->creg1 = ret; + + ret = i2c_smbus_read_byte_data(data->client, AS73211_REG_CREG2); + if (ret < 0) + return ret; + data->creg2 = ret; + + ret = i2c_smbus_read_byte_data(data->client, AS73211_REG_CREG3); + if (ret < 0) + return ret; + data->creg3 = ret; + as73211_integration_time_calc_avail(data); + + ret = as73211_power(indio_dev, true); + if (ret < 0) + return ret; + + ret = devm_add_action_or_reset(dev, as73211_power_disable, indio_dev); + if (ret) + return ret; + + ret = devm_iio_triggered_buffer_setup(dev, indio_dev, NULL, as73211_trigger_handler, NULL); + if (ret) + return ret; + + if (client->irq) { + ret = devm_request_threaded_irq(&client->dev, client->irq, + NULL, + as73211_ready_handler, + IRQF_ONESHOT, + client->name, indio_dev); + if (ret) + return ret; + } + + return devm_iio_device_register(dev, indio_dev); +} + +static int __maybe_unused as73211_suspend(struct device *dev) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); + + return as73211_power(indio_dev, false); +} + +static int __maybe_unused as73211_resume(struct device *dev) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); + + return as73211_power(indio_dev, true); +} + +static SIMPLE_DEV_PM_OPS(as73211_pm_ops, as73211_suspend, as73211_resume); + +static const struct of_device_id as73211_of_match[] = { + { .compatible = "ams,as73211" }, + { } +}; +MODULE_DEVICE_TABLE(of, as73211_of_match); + +static const struct i2c_device_id as73211_id[] = { + { "as73211", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, as73211_id); + +static struct i2c_driver as73211_driver = { + .driver = { + .name = AS73211_DRV_NAME, + .of_match_table = as73211_of_match, + .pm = &as73211_pm_ops, + }, + .probe_new = as73211_probe, + .id_table = as73211_id, +}; +module_i2c_driver(as73211_driver); + +MODULE_AUTHOR("Christian Eggers <ceggers@arri.de>"); +MODULE_DESCRIPTION("AS73211 XYZ True Color Sensor driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/iio/light/cros_ec_light_prox.c b/drivers/iio/light/cros_ec_light_prox.c index fed79ba27fda..75d6b5fcf2cc 100644 --- a/drivers/iio/light/cros_ec_light_prox.c +++ b/drivers/iio/light/cros_ec_light_prox.c @@ -182,12 +182,11 @@ static int cros_ec_light_prox_probe(struct platform_device *pdev) ret = cros_ec_sensors_core_init(pdev, indio_dev, true, cros_ec_sensors_capture, - cros_ec_sensors_push_data); + cros_ec_sensors_push_data, + true); if (ret) return ret; - iio_buffer_set_attrs(indio_dev->buffer, cros_ec_sensor_fifo_attributes); - indio_dev->info = &cros_ec_light_prox_info; state = iio_priv(indio_dev); state->core.type = state->core.resp->info.type; diff --git a/drivers/iio/light/gp2ap002.c b/drivers/iio/light/gp2ap002.c index d5e1cd27eb46..7ba7aa59437c 100644 --- a/drivers/iio/light/gp2ap002.c +++ b/drivers/iio/light/gp2ap002.c @@ -566,7 +566,7 @@ static int gp2ap002_probe(struct i2c_client *client, /* * Initialize the device and signal to runtime PM that now we are - * definately up and using power. + * definitely up and using power. */ ret = gp2ap002_init(gp2ap002); if (ret) { diff --git a/drivers/iio/light/isl29018.c b/drivers/iio/light/isl29018.c index ac8ad0f32689..2689867467a8 100644 --- a/drivers/iio/light/isl29018.c +++ b/drivers/iio/light/isl29018.c @@ -746,12 +746,9 @@ static int isl29018_probe(struct i2c_client *client, chip->suspended = false; chip->vcc_reg = devm_regulator_get(&client->dev, "vcc"); - if (IS_ERR(chip->vcc_reg)) { - err = PTR_ERR(chip->vcc_reg); - if (err != -EPROBE_DEFER) - dev_err(&client->dev, "failed to get VCC regulator!\n"); - return err; - } + if (IS_ERR(chip->vcc_reg)) + return dev_err_probe(&client->dev, PTR_ERR(chip->vcc_reg), + "failed to get VCC regulator!\n"); err = regulator_enable(chip->vcc_reg); if (err) { diff --git a/drivers/iio/light/si1145.c b/drivers/iio/light/si1145.c index 8f5f857c2e7d..b304801c7916 100644 --- a/drivers/iio/light/si1145.c +++ b/drivers/iio/light/si1145.c @@ -168,6 +168,7 @@ struct si1145_part_info { * @part_info: Part information * @trig: Pointer to iio trigger * @meas_rate: Value of MEAS_RATE register. Only set in HW in auto mode + * @buffer: Used to pack data read from sensor. */ struct si1145_data { struct i2c_client *client; @@ -179,6 +180,14 @@ struct si1145_data { bool autonomous; struct iio_trigger *trig; int meas_rate; + /* + * Ensure timestamp will be naturally aligned if present. + * Maximum buffer size (may be only partly used if not all + * channels are enabled): + * 6*2 bytes channels data + 4 bytes alignment + + * 8 bytes timestamp + */ + u8 buffer[24] __aligned(8); }; /* @@ -440,12 +449,6 @@ static irqreturn_t si1145_trigger_handler(int irq, void *private) struct iio_poll_func *pf = private; struct iio_dev *indio_dev = pf->indio_dev; struct si1145_data *data = iio_priv(indio_dev); - /* - * Maximum buffer size: - * 6*2 bytes channels data + 4 bytes alignment + - * 8 bytes timestamp - */ - u8 buffer[24]; int i, j = 0; int ret; u8 irq_status = 0; @@ -478,7 +481,7 @@ static irqreturn_t si1145_trigger_handler(int irq, void *private) ret = i2c_smbus_read_i2c_block_data_or_emulated( data->client, indio_dev->channels[i].address, - sizeof(u16) * run, &buffer[j]); + sizeof(u16) * run, &data->buffer[j]); if (ret < 0) goto done; j += run * sizeof(u16); @@ -493,7 +496,7 @@ static irqreturn_t si1145_trigger_handler(int irq, void *private) goto done; } - iio_push_to_buffers_with_timestamp(indio_dev, buffer, + iio_push_to_buffers_with_timestamp(indio_dev, data->buffer, iio_get_time_ns(indio_dev)); done: diff --git a/drivers/iio/light/tsl2772.c b/drivers/iio/light/tsl2772.c index 735399405417..d79205361dfa 100644 --- a/drivers/iio/light/tsl2772.c +++ b/drivers/iio/light/tsl2772.c @@ -1776,14 +1776,8 @@ static int tsl2772_probe(struct i2c_client *clientp, ret = devm_regulator_bulk_get(&clientp->dev, ARRAY_SIZE(chip->supplies), chip->supplies); - if (ret < 0) { - if (ret != -EPROBE_DEFER) - dev_err(&clientp->dev, - "Failed to get regulators: %d\n", - ret); - - return ret; - } + if (ret < 0) + return dev_err_probe(&clientp->dev, ret, "Failed to get regulators\n"); ret = regulator_bulk_enable(ARRAY_SIZE(chip->supplies), chip->supplies); if (ret < 0) { diff --git a/drivers/iio/magnetometer/ak8974.c b/drivers/iio/magnetometer/ak8974.c index cbb44e401c0a..24b2f7b1fe44 100644 --- a/drivers/iio/magnetometer/ak8974.c +++ b/drivers/iio/magnetometer/ak8974.c @@ -12,6 +12,7 @@ * Author: Linus Walleij <linus.walleij@linaro.org> */ #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/kernel.h> #include <linux/i2c.h> #include <linux/interrupt.h> @@ -843,15 +844,8 @@ static int ak8974_probe(struct i2c_client *i2c, ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(ak8974->regs), ak8974->regs); - if (ret < 0) { - if (ret != -EPROBE_DEFER) - dev_err(&i2c->dev, "cannot get regulators: %d\n", ret); - else - dev_dbg(&i2c->dev, - "regulators unavailable, deferring probe\n"); - - return ret; - } + if (ret < 0) + return dev_err_probe(&i2c->dev, ret, "cannot get regulators\n"); ret = regulator_bulk_enable(ARRAY_SIZE(ak8974->regs), ak8974->regs); if (ret < 0) { @@ -1058,7 +1052,7 @@ static struct i2c_driver ak8974_driver = { .driver = { .name = "ak8974", .pm = &ak8974_dev_pm_ops, - .of_match_table = of_match_ptr(ak8974_of_match), + .of_match_table = ak8974_of_match, }, .probe = ak8974_probe, .remove = ak8974_remove, diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c index 623766ff800b..d988b6ac3659 100644 --- a/drivers/iio/magnetometer/ak8975.c +++ b/drivers/iio/magnetometer/ak8975.c @@ -8,6 +8,7 @@ */ #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/kernel.h> #include <linux/slab.h> #include <linux/i2c.h> @@ -17,7 +18,6 @@ #include <linux/delay.h> #include <linux/bitops.h> #include <linux/gpio/consumer.h> -#include <linux/acpi.h> #include <linux/regulator/consumer.h> #include <linux/pm_runtime.h> @@ -779,7 +779,6 @@ static const struct iio_info ak8975_info = { .read_raw = &ak8975_read_raw, }; -#ifdef CONFIG_ACPI static const struct acpi_device_id ak_acpi_match[] = { {"AK8975", AK8975}, {"AK8963", AK8963}, @@ -791,7 +790,6 @@ static const struct acpi_device_id ak_acpi_match[] = { { } }; MODULE_DEVICE_TABLE(acpi, ak_acpi_match); -#endif static void ak8975_fill_buffer(struct iio_dev *indio_dev) { @@ -1081,8 +1079,8 @@ static struct i2c_driver ak8975_driver = { .driver = { .name = "ak8975", .pm = &ak8975_dev_pm_ops, - .of_match_table = of_match_ptr(ak8975_of_match), - .acpi_match_table = ACPI_PTR(ak_acpi_match), + .of_match_table = ak8975_of_match, + .acpi_match_table = ak_acpi_match, }, .probe = ak8975_probe, .remove = ak8975_remove, diff --git a/drivers/iio/magnetometer/hmc5843_core.c b/drivers/iio/magnetometer/hmc5843_core.c index 1474ba63babe..780faea61d82 100644 --- a/drivers/iio/magnetometer/hmc5843_core.c +++ b/drivers/iio/magnetometer/hmc5843_core.c @@ -245,7 +245,7 @@ static const struct iio_enum hmc5843_meas_conf_enum = { }; static const struct iio_chan_spec_ext_info hmc5843_ext_info[] = { - IIO_ENUM("meas_conf", true, &hmc5843_meas_conf_enum), + IIO_ENUM("meas_conf", IIO_SHARED_BY_TYPE, &hmc5843_meas_conf_enum), IIO_ENUM_AVAILABLE("meas_conf", &hmc5843_meas_conf_enum), IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, hmc5843_get_mount_matrix), { } @@ -259,7 +259,7 @@ static const struct iio_enum hmc5983_meas_conf_enum = { }; static const struct iio_chan_spec_ext_info hmc5983_ext_info[] = { - IIO_ENUM("meas_conf", true, &hmc5983_meas_conf_enum), + IIO_ENUM("meas_conf", IIO_SHARED_BY_TYPE, &hmc5983_meas_conf_enum), IIO_ENUM_AVAILABLE("meas_conf", &hmc5983_meas_conf_enum), IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, hmc5843_get_mount_matrix), { } diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c index 4d305a21c379..838b13c8bb3d 100644 --- a/drivers/iio/magnetometer/mag3110.c +++ b/drivers/iio/magnetometer/mag3110.c @@ -476,22 +476,14 @@ static int mag3110_probe(struct i2c_client *client, data = iio_priv(indio_dev); data->vdd_reg = devm_regulator_get(&client->dev, "vdd"); - if (IS_ERR(data->vdd_reg)) { - if (PTR_ERR(data->vdd_reg) == -EPROBE_DEFER) - return -EPROBE_DEFER; - - dev_err(&client->dev, "failed to get VDD regulator!\n"); - return PTR_ERR(data->vdd_reg); - } + if (IS_ERR(data->vdd_reg)) + return dev_err_probe(&client->dev, PTR_ERR(data->vdd_reg), + "failed to get VDD regulator!\n"); data->vddio_reg = devm_regulator_get(&client->dev, "vddio"); - if (IS_ERR(data->vddio_reg)) { - if (PTR_ERR(data->vddio_reg) == -EPROBE_DEFER) - return -EPROBE_DEFER; - - dev_err(&client->dev, "failed to get VDDIO regulator!\n"); - return PTR_ERR(data->vddio_reg); - } + if (IS_ERR(data->vddio_reg)) + return dev_err_probe(&client->dev, PTR_ERR(data->vddio_reg), + "failed to get VDDIO regulator!\n"); ret = regulator_enable(data->vdd_reg); if (ret) { diff --git a/drivers/iio/multiplexer/iio-mux.c b/drivers/iio/multiplexer/iio-mux.c index 6910218fdb00..d54ae5cbe51b 100644 --- a/drivers/iio/multiplexer/iio-mux.c +++ b/drivers/iio/multiplexer/iio-mux.c @@ -354,11 +354,9 @@ static int mux_probe(struct platform_device *pdev) return -ENODEV; parent = devm_iio_channel_get(dev, "parent"); - if (IS_ERR(parent)) { - if (PTR_ERR(parent) != -EPROBE_DEFER) - dev_err(dev, "failed to get parent channel\n"); - return PTR_ERR(parent); - } + if (IS_ERR(parent)) + return dev_err_probe(dev, PTR_ERR(parent), + "failed to get parent channel\n"); sizeof_ext_info = iio_get_channel_ext_info_count(parent); if (sizeof_ext_info) { diff --git a/drivers/iio/potentiometer/ad5272.c b/drivers/iio/potentiometer/ad5272.c index 933afcf7e925..70c45d346df0 100644 --- a/drivers/iio/potentiometer/ad5272.c +++ b/drivers/iio/potentiometer/ad5272.c @@ -15,6 +15,7 @@ #include <linux/i2c.h> #include <linux/iio/iio.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #define AD5272_RDAC_WR 1 #define AD5272_RDAC_RD 2 @@ -192,7 +193,6 @@ static int ad5272_probe(struct i2c_client *client, return devm_iio_device_register(dev, indio_dev); } -#if defined(CONFIG_OF) static const struct of_device_id ad5272_dt_ids[] = { { .compatible = "adi,ad5272-020", .data = (void *)AD5272_020 }, { .compatible = "adi,ad5272-050", .data = (void *)AD5272_050 }, @@ -202,7 +202,6 @@ static const struct of_device_id ad5272_dt_ids[] = { {} }; MODULE_DEVICE_TABLE(of, ad5272_dt_ids); -#endif /* CONFIG_OF */ static const struct i2c_device_id ad5272_id[] = { { "ad5272-020", AD5272_020 }, @@ -217,7 +216,7 @@ MODULE_DEVICE_TABLE(i2c, ad5272_id); static struct i2c_driver ad5272_driver = { .driver = { .name = "ad5272", - .of_match_table = of_match_ptr(ad5272_dt_ids), + .of_match_table = ad5272_dt_ids, }, .probe = ad5272_probe, .id_table = ad5272_id, diff --git a/drivers/iio/potentiometer/ds1803.c b/drivers/iio/potentiometer/ds1803.c index 5c061ab8f46c..20b45407eaac 100644 --- a/drivers/iio/potentiometer/ds1803.c +++ b/drivers/iio/potentiometer/ds1803.c @@ -14,7 +14,7 @@ #include <linux/i2c.h> #include <linux/iio/iio.h> #include <linux/module.h> -#include <linux/of.h> +#include <linux/mod_devicetable.h> #define DS1803_MAX_POS 255 #define DS1803_WRITE(chan) (0xa8 | ((chan) + 1)) @@ -134,7 +134,6 @@ static int ds1803_probe(struct i2c_client *client, return devm_iio_device_register(dev, indio_dev); } -#if defined(CONFIG_OF) static const struct of_device_id ds1803_dt_ids[] = { { .compatible = "maxim,ds1803-010", .data = &ds1803_cfg[DS1803_010] }, { .compatible = "maxim,ds1803-050", .data = &ds1803_cfg[DS1803_050] }, @@ -142,7 +141,6 @@ static const struct of_device_id ds1803_dt_ids[] = { {} }; MODULE_DEVICE_TABLE(of, ds1803_dt_ids); -#endif /* CONFIG_OF */ static const struct i2c_device_id ds1803_id[] = { { "ds1803-010", DS1803_010 }, @@ -155,7 +153,7 @@ MODULE_DEVICE_TABLE(i2c, ds1803_id); static struct i2c_driver ds1803_driver = { .driver = { .name = "ds1803", - .of_match_table = of_match_ptr(ds1803_dt_ids), + .of_match_table = ds1803_dt_ids, }, .probe = ds1803_probe, .id_table = ds1803_id, diff --git a/drivers/iio/potentiometer/max5432.c b/drivers/iio/potentiometer/max5432.c index 280de9c54471..aed3b6ab82a2 100644 --- a/drivers/iio/potentiometer/max5432.c +++ b/drivers/iio/potentiometer/max5432.c @@ -11,8 +11,8 @@ #include <linux/iio/iio.h> #include <linux/limits.h> #include <linux/module.h> -#include <linux/of.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> +#include <linux/property.h> /* All chip variants have 32 wiper positions. */ #define MAX5432_MAX_POS 31 @@ -100,7 +100,7 @@ static int max5432_probe(struct i2c_client *client, data = iio_priv(indio_dev); data->client = client; - data->ohm = (unsigned long)of_device_get_match_data(dev); + data->ohm = (unsigned long)device_get_match_data(dev); indio_dev->info = &max5432_info; indio_dev->channels = max5432_channels; @@ -122,7 +122,7 @@ MODULE_DEVICE_TABLE(of, max5432_dt_ids); static struct i2c_driver max5432_driver = { .driver = { .name = "max5432", - .of_match_table = of_match_ptr(max5432_dt_ids), + .of_match_table = max5432_dt_ids, }, .probe = max5432_probe, }; diff --git a/drivers/iio/potentiometer/max5481.c b/drivers/iio/potentiometer/max5481.c index 5f5988189796..a88ed0eb3adc 100644 --- a/drivers/iio/potentiometer/max5481.c +++ b/drivers/iio/potentiometer/max5481.c @@ -7,12 +7,11 @@ * https://datasheets.maximintegrated.com/en/ds/MAX5481-MAX5484.pdf */ -#include <linux/acpi.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/module.h> -#include <linux/of.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> +#include <linux/property.h> #include <linux/spi/spi.h> /* write wiper reg */ @@ -117,7 +116,6 @@ static const struct iio_info max5481_info = { .write_raw = max5481_write_raw, }; -#if defined(CONFIG_OF) static const struct of_device_id max5481_match[] = { { .compatible = "maxim,max5481", .data = &max5481_cfg[max5481] }, { .compatible = "maxim,max5482", .data = &max5481_cfg[max5482] }, @@ -126,7 +124,6 @@ static const struct of_device_id max5481_match[] = { { } }; MODULE_DEVICE_TABLE(of, max5481_match); -#endif static int max5481_probe(struct spi_device *spi) { @@ -144,7 +141,7 @@ static int max5481_probe(struct spi_device *spi) data->spi = spi; - data->cfg = of_device_get_match_data(&spi->dev); + data->cfg = device_get_match_data(&spi->dev); if (!data->cfg) data->cfg = &max5481_cfg[id->driver_data]; @@ -184,22 +181,10 @@ static const struct spi_device_id max5481_id_table[] = { }; MODULE_DEVICE_TABLE(spi, max5481_id_table); -#if defined(CONFIG_ACPI) -static const struct acpi_device_id max5481_acpi_match[] = { - { "max5481", max5481 }, - { "max5482", max5482 }, - { "max5483", max5483 }, - { "max5484", max5484 }, - { } -}; -MODULE_DEVICE_TABLE(acpi, max5481_acpi_match); -#endif - static struct spi_driver max5481_driver = { .driver = { .name = "max5481", - .of_match_table = of_match_ptr(max5481_match), - .acpi_match_table = ACPI_PTR(max5481_acpi_match), + .of_match_table = max5481_match, }, .probe = max5481_probe, .remove = max5481_remove, diff --git a/drivers/iio/potentiometer/mcp4018.c b/drivers/iio/potentiometer/mcp4018.c index fd0579ad3c83..c0e171fec062 100644 --- a/drivers/iio/potentiometer/mcp4018.c +++ b/drivers/iio/potentiometer/mcp4018.c @@ -16,8 +16,8 @@ #include <linux/i2c.h> #include <linux/iio/iio.h> #include <linux/module.h> -#include <linux/of.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> +#include <linux/property.h> #define MCP4018_WIPER_MAX 127 @@ -116,8 +116,6 @@ static const struct i2c_device_id mcp4018_id[] = { }; MODULE_DEVICE_TABLE(i2c, mcp4018_id); -#ifdef CONFIG_OF - #define MCP4018_COMPATIBLE(of_compatible, cfg) { \ .compatible = of_compatible, \ .data = &mcp4018_cfg[cfg], \ @@ -140,8 +138,6 @@ static const struct of_device_id mcp4018_of_match[] = { }; MODULE_DEVICE_TABLE(of, mcp4018_of_match); -#endif - static int mcp4018_probe(struct i2c_client *client) { struct device *dev = &client->dev; @@ -161,7 +157,7 @@ static int mcp4018_probe(struct i2c_client *client) i2c_set_clientdata(client, indio_dev); data->client = client; - data->cfg = of_device_get_match_data(dev); + data->cfg = device_get_match_data(dev); if (!data->cfg) data->cfg = &mcp4018_cfg[i2c_match_id(mcp4018_id, client)->driver_data]; @@ -176,7 +172,7 @@ static int mcp4018_probe(struct i2c_client *client) static struct i2c_driver mcp4018_driver = { .driver = { .name = "mcp4018", - .of_match_table = of_match_ptr(mcp4018_of_match), + .of_match_table = mcp4018_of_match, }, .probe_new = mcp4018_probe, .id_table = mcp4018_id, diff --git a/drivers/iio/potentiometer/mcp4131.c b/drivers/iio/potentiometer/mcp4131.c index 2923ce250fc3..7c8c18ab8764 100644 --- a/drivers/iio/potentiometer/mcp4131.c +++ b/drivers/iio/potentiometer/mcp4131.c @@ -37,9 +37,9 @@ #include <linux/iio/iio.h> #include <linux/iio/types.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/mutex.h> -#include <linux/of.h> -#include <linux/of_device.h> +#include <linux/property.h> #include <linux/spi/spi.h> #define MCP4131_WRITE (0x00 << 2) @@ -252,7 +252,7 @@ static int mcp4131_probe(struct spi_device *spi) data = iio_priv(indio_dev); spi_set_drvdata(spi, indio_dev); data->spi = spi; - data->cfg = of_device_get_match_data(&spi->dev); + data->cfg = device_get_match_data(&spi->dev); if (!data->cfg) { devid = spi_get_device_id(spi)->driver_data; data->cfg = &mcp4131_cfg[devid]; @@ -479,7 +479,7 @@ MODULE_DEVICE_TABLE(spi, mcp4131_id); static struct spi_driver mcp4131_driver = { .driver = { .name = "mcp4131", - .of_match_table = of_match_ptr(mcp4131_dt_ids), + .of_match_table = mcp4131_dt_ids, }, .probe = mcp4131_probe, .id_table = mcp4131_id, diff --git a/drivers/iio/potentiometer/mcp4531.c b/drivers/iio/potentiometer/mcp4531.c index 95efc4b40514..c25f84b4a270 100644 --- a/drivers/iio/potentiometer/mcp4531.c +++ b/drivers/iio/potentiometer/mcp4531.c @@ -28,8 +28,8 @@ #include <linux/module.h> #include <linux/i2c.h> #include <linux/err.h> -#include <linux/of.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> +#include <linux/property.h> #include <linux/iio/iio.h> @@ -275,8 +275,6 @@ static const struct i2c_device_id mcp4531_id[] = { }; MODULE_DEVICE_TABLE(i2c, mcp4531_id); -#ifdef CONFIG_OF - #define MCP4531_COMPATIBLE(of_compatible, cfg) { \ .compatible = of_compatible, \ .data = &mcp4531_cfg[cfg], \ @@ -350,7 +348,6 @@ static const struct of_device_id mcp4531_of_match[] = { { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, mcp4531_of_match); -#endif static int mcp4531_probe(struct i2c_client *client) { @@ -371,7 +368,7 @@ static int mcp4531_probe(struct i2c_client *client) i2c_set_clientdata(client, indio_dev); data->client = client; - data->cfg = of_device_get_match_data(dev); + data->cfg = device_get_match_data(dev); if (!data->cfg) data->cfg = &mcp4531_cfg[i2c_match_id(mcp4531_id, client)->driver_data]; @@ -386,7 +383,7 @@ static int mcp4531_probe(struct i2c_client *client) static struct i2c_driver mcp4531_driver = { .driver = { .name = "mcp4531", - .of_match_table = of_match_ptr(mcp4531_of_match), + .of_match_table = mcp4531_of_match, }, .probe_new = mcp4531_probe, .id_table = mcp4531_id, diff --git a/drivers/iio/potentiostat/lmp91000.c b/drivers/iio/potentiostat/lmp91000.c index 67ae635a05f3..f34ca769dc20 100644 --- a/drivers/iio/potentiostat/lmp91000.c +++ b/drivers/iio/potentiostat/lmp91000.c @@ -11,7 +11,7 @@ #include <linux/module.h> #include <linux/i2c.h> #include <linux/delay.h> -#include <linux/of.h> +#include <linux/mod_devicetable.h> #include <linux/regmap.h> #include <linux/iio/iio.h> #include <linux/iio/buffer.h> @@ -205,13 +205,12 @@ static const struct iio_info lmp91000_info = { static int lmp91000_read_config(struct lmp91000_data *data) { struct device *dev = data->dev; - struct device_node *np = dev->of_node; unsigned int reg, val; int i, ret; - ret = of_property_read_u32(np, "ti,tia-gain-ohm", &val); + ret = device_property_read_u32(dev, "ti,tia-gain-ohm", &val); if (ret) { - if (!of_property_read_bool(np, "ti,external-tia-resistor")) { + if (!device_property_read_bool(dev, "ti,external-tia-resistor")) { dev_err(dev, "no ti,tia-gain-ohm defined and external resistor not specified\n"); return ret; } @@ -232,7 +231,7 @@ static int lmp91000_read_config(struct lmp91000_data *data) return ret; } - ret = of_property_read_u32(np, "ti,rload-ohm", &val); + ret = device_property_read_u32(dev, "ti,rload-ohm", &val); if (ret) { val = 100; dev_info(dev, "no ti,rload-ohm defined, default to %d\n", val); @@ -422,7 +421,7 @@ MODULE_DEVICE_TABLE(i2c, lmp91000_id); static struct i2c_driver lmp91000_driver = { .driver = { .name = LMP91000_DRV_NAME, - .of_match_table = of_match_ptr(lmp91000_of_match), + .of_match_table = lmp91000_of_match, }, .probe = lmp91000_probe, .remove = lmp91000_remove, diff --git a/drivers/iio/pressure/cros_ec_baro.c b/drivers/iio/pressure/cros_ec_baro.c index f0938b6fbba0..aa043cb9ac42 100644 --- a/drivers/iio/pressure/cros_ec_baro.c +++ b/drivers/iio/pressure/cros_ec_baro.c @@ -139,12 +139,11 @@ static int cros_ec_baro_probe(struct platform_device *pdev) ret = cros_ec_sensors_core_init(pdev, indio_dev, true, cros_ec_sensors_capture, - cros_ec_sensors_push_data); + cros_ec_sensors_push_data, + true); if (ret) return ret; - iio_buffer_set_attrs(indio_dev->buffer, cros_ec_sensor_fifo_attributes); - indio_dev->info = &cros_ec_baro_info; state = iio_priv(indio_dev); state->core.type = state->core.resp->info.type; diff --git a/drivers/iio/pressure/icp10100.c b/drivers/iio/pressure/icp10100.c index 90c0df068bbb..48759fc4bf18 100644 --- a/drivers/iio/pressure/icp10100.c +++ b/drivers/iio/pressure/icp10100.c @@ -10,6 +10,7 @@ #include <linux/device.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/i2c.h> #include <linux/pm_runtime.h> #include <linux/crc8.h> @@ -645,7 +646,7 @@ static struct i2c_driver icp10100_driver = { .driver = { .name = "icp10100", .pm = &icp10100_pm, - .of_match_table = of_match_ptr(icp10100_of_match), + .of_match_table = icp10100_of_match, }, .probe = icp10100_probe, .id_table = icp10100_id, diff --git a/drivers/iio/pressure/ms5611_i2c.c b/drivers/iio/pressure/ms5611_i2c.c index 072c106dd66d..7c04f730430c 100644 --- a/drivers/iio/pressure/ms5611_i2c.c +++ b/drivers/iio/pressure/ms5611_i2c.c @@ -14,7 +14,7 @@ #include <linux/delay.h> #include <linux/i2c.h> #include <linux/module.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> #include <asm/unaligned.h> @@ -113,14 +113,12 @@ static int ms5611_i2c_remove(struct i2c_client *client) return ms5611_remove(i2c_get_clientdata(client)); } -#if defined(CONFIG_OF) static const struct of_device_id ms5611_i2c_matches[] = { { .compatible = "meas,ms5611" }, { .compatible = "meas,ms5607" }, { } }; MODULE_DEVICE_TABLE(of, ms5611_i2c_matches); -#endif static const struct i2c_device_id ms5611_id[] = { { "ms5611", MS5611 }, @@ -132,7 +130,7 @@ MODULE_DEVICE_TABLE(i2c, ms5611_id); static struct i2c_driver ms5611_driver = { .driver = { .name = "ms5611", - .of_match_table = of_match_ptr(ms5611_i2c_matches) + .of_match_table = ms5611_i2c_matches, }, .id_table = ms5611_id, .probe = ms5611_i2c_probe, diff --git a/drivers/iio/pressure/ms5611_spi.c b/drivers/iio/pressure/ms5611_spi.c index 4799aa57135e..45d3a7d5be8e 100644 --- a/drivers/iio/pressure/ms5611_spi.c +++ b/drivers/iio/pressure/ms5611_spi.c @@ -9,7 +9,7 @@ #include <linux/delay.h> #include <linux/module.h> #include <linux/spi/spi.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> #include <asm/unaligned.h> @@ -115,14 +115,12 @@ static int ms5611_spi_remove(struct spi_device *spi) return ms5611_remove(spi_get_drvdata(spi)); } -#if defined(CONFIG_OF) static const struct of_device_id ms5611_spi_matches[] = { { .compatible = "meas,ms5611" }, { .compatible = "meas,ms5607" }, { } }; MODULE_DEVICE_TABLE(of, ms5611_spi_matches); -#endif static const struct spi_device_id ms5611_id[] = { { "ms5611", MS5611 }, @@ -134,7 +132,7 @@ MODULE_DEVICE_TABLE(spi, ms5611_id); static struct spi_driver ms5611_driver = { .driver = { .name = "ms5611", - .of_match_table = of_match_ptr(ms5611_spi_matches) + .of_match_table = ms5611_spi_matches }, .id_table = ms5611_id, .probe = ms5611_spi_probe, diff --git a/drivers/iio/pressure/ms5637.c b/drivers/iio/pressure/ms5637.c index 05e0ef7260d5..5b59a4137d32 100644 --- a/drivers/iio/pressure/ms5637.c +++ b/drivers/iio/pressure/ms5637.c @@ -22,6 +22,7 @@ #include <linux/kernel.h> #include <linux/stat.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/i2c.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> @@ -192,7 +193,7 @@ static struct i2c_driver ms5637_driver = { .id_table = ms5637_id, .driver = { .name = "ms5637", - .of_match_table = of_match_ptr(ms5637_of_match), + .of_match_table = ms5637_of_match, }, }; diff --git a/drivers/iio/pressure/zpa2326_i2c.c b/drivers/iio/pressure/zpa2326_i2c.c index 1a65791ba279..95d9739444c4 100644 --- a/drivers/iio/pressure/zpa2326_i2c.c +++ b/drivers/iio/pressure/zpa2326_i2c.c @@ -10,7 +10,7 @@ #include <linux/module.h> #include <linux/regmap.h> #include <linux/i2c.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> #include "zpa2326.h" /* @@ -66,18 +66,16 @@ static const struct i2c_device_id zpa2326_i2c_ids[] = { }; MODULE_DEVICE_TABLE(i2c, zpa2326_i2c_ids); -#if defined(CONFIG_OF) static const struct of_device_id zpa2326_i2c_matches[] = { { .compatible = "murata,zpa2326" }, { } }; MODULE_DEVICE_TABLE(of, zpa2326_i2c_matches); -#endif static struct i2c_driver zpa2326_i2c_driver = { .driver = { .name = "zpa2326-i2c", - .of_match_table = of_match_ptr(zpa2326_i2c_matches), + .of_match_table = zpa2326_i2c_matches, .pm = ZPA2326_PM_OPS, }, .probe = zpa2326_probe_i2c, diff --git a/drivers/iio/pressure/zpa2326_spi.c b/drivers/iio/pressure/zpa2326_spi.c index f37a4c738c75..85201a4bae44 100644 --- a/drivers/iio/pressure/zpa2326_spi.c +++ b/drivers/iio/pressure/zpa2326_spi.c @@ -10,7 +10,7 @@ #include <linux/module.h> #include <linux/regmap.h> #include <linux/spi/spi.h> -#include <linux/of_device.h> +#include <linux/mod_devicetable.h> #include "zpa2326.h" /* @@ -70,18 +70,16 @@ static const struct spi_device_id zpa2326_spi_ids[] = { }; MODULE_DEVICE_TABLE(spi, zpa2326_spi_ids); -#if defined(CONFIG_OF) static const struct of_device_id zpa2326_spi_matches[] = { { .compatible = "murata,zpa2326" }, { } }; MODULE_DEVICE_TABLE(of, zpa2326_spi_matches); -#endif static struct spi_driver zpa2326_spi_driver = { .driver = { .name = "zpa2326-spi", - .of_match_table = of_match_ptr(zpa2326_spi_matches), + .of_match_table = zpa2326_spi_matches, .pm = ZPA2326_PM_OPS, }, .probe = zpa2326_probe_spi, diff --git a/drivers/iio/proximity/as3935.c b/drivers/iio/proximity/as3935.c index c339e7339ec8..b79ada839e01 100644 --- a/drivers/iio/proximity/as3935.c +++ b/drivers/iio/proximity/as3935.c @@ -7,6 +7,7 @@ */ #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/delay.h> @@ -352,19 +353,19 @@ static void as3935_stop_work(void *data) static int as3935_probe(struct spi_device *spi) { + struct device *dev = &spi->dev; struct iio_dev *indio_dev; struct iio_trigger *trig; struct as3935_state *st; - struct device_node *np = spi->dev.of_node; int ret; /* Be sure lightning event interrupt is specified */ if (!spi->irq) { - dev_err(&spi->dev, "unable to get event interrupt\n"); + dev_err(dev, "unable to get event interrupt\n"); return -EINVAL; } - indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); + indio_dev = devm_iio_device_alloc(dev, sizeof(*st)); if (!indio_dev) return -ENOMEM; @@ -374,27 +375,24 @@ static int as3935_probe(struct spi_device *spi) spi_set_drvdata(spi, indio_dev); mutex_init(&st->lock); - ret = of_property_read_u32(np, + ret = device_property_read_u32(dev, "ams,tuning-capacitor-pf", &st->tune_cap); if (ret) { st->tune_cap = 0; - dev_warn(&spi->dev, - "no tuning-capacitor-pf set, defaulting to %d", + dev_warn(dev, "no tuning-capacitor-pf set, defaulting to %d", st->tune_cap); } if (st->tune_cap > MAX_PF_CAP) { - dev_err(&spi->dev, - "wrong tuning-capacitor-pf setting of %d\n", + dev_err(dev, "wrong tuning-capacitor-pf setting of %d\n", st->tune_cap); return -EINVAL; } - ret = of_property_read_u32(np, + ret = device_property_read_u32(dev, "ams,nflwdth", &st->nflwdth_reg); if (!ret && st->nflwdth_reg > AS3935_NFLWDTH_MASK) { - dev_err(&spi->dev, - "invalid nflwdth setting of %d\n", + dev_err(dev, "invalid nflwdth setting of %d\n", st->nflwdth_reg); return -EINVAL; } @@ -405,7 +403,7 @@ static int as3935_probe(struct spi_device *spi) indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &as3935_info; - trig = devm_iio_trigger_alloc(&spi->dev, "%s-dev%d", + trig = devm_iio_trigger_alloc(dev, "%s-dev%d", indio_dev->name, indio_dev->id); if (!trig) @@ -417,42 +415,42 @@ static int as3935_probe(struct spi_device *spi) iio_trigger_set_drvdata(trig, indio_dev); trig->ops = &iio_interrupt_trigger_ops; - ret = devm_iio_trigger_register(&spi->dev, trig); + ret = devm_iio_trigger_register(dev, trig); if (ret) { - dev_err(&spi->dev, "failed to register trigger\n"); + dev_err(dev, "failed to register trigger\n"); return ret; } - ret = devm_iio_triggered_buffer_setup(&spi->dev, indio_dev, + ret = devm_iio_triggered_buffer_setup(dev, indio_dev, iio_pollfunc_store_time, as3935_trigger_handler, NULL); if (ret) { - dev_err(&spi->dev, "cannot setup iio trigger\n"); + dev_err(dev, "cannot setup iio trigger\n"); return ret; } calibrate_as3935(st); INIT_DELAYED_WORK(&st->work, as3935_event_work); - ret = devm_add_action(&spi->dev, as3935_stop_work, indio_dev); + ret = devm_add_action(dev, as3935_stop_work, indio_dev); if (ret) return ret; - ret = devm_request_irq(&spi->dev, spi->irq, + ret = devm_request_irq(dev, spi->irq, &as3935_interrupt_handler, IRQF_TRIGGER_RISING, - dev_name(&spi->dev), + dev_name(dev), indio_dev); if (ret) { - dev_err(&spi->dev, "unable to request irq\n"); + dev_err(dev, "unable to request irq\n"); return ret; } - ret = devm_iio_device_register(&spi->dev, indio_dev); + ret = devm_iio_device_register(dev, indio_dev); if (ret < 0) { - dev_err(&spi->dev, "unable to register device\n"); + dev_err(dev, "unable to register device\n"); return ret; } return 0; @@ -473,7 +471,7 @@ MODULE_DEVICE_TABLE(spi, as3935_id); static struct spi_driver as3935_driver = { .driver = { .name = "as3935", - .of_match_table = of_match_ptr(as3935_of_match), + .of_match_table = as3935_of_match, .pm = AS3935_PM_OPS, }, .probe = as3935_probe, diff --git a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c index a8e716dbd24e..c685f10b5ae4 100644 --- a/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c +++ b/drivers/iio/proximity/pulsedlight-lidar-lite-v2.c @@ -13,6 +13,7 @@ #include <linux/i2c.h> #include <linux/delay.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/pm_runtime.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> @@ -360,7 +361,7 @@ static const struct dev_pm_ops lidar_pm_ops = { static struct i2c_driver lidar_driver = { .driver = { .name = LIDAR_DRV_NAME, - .of_match_table = of_match_ptr(lidar_dt_ids), + .of_match_table = lidar_dt_ids, .pm = &lidar_pm_ops, }, .probe = lidar_probe, diff --git a/drivers/iio/proximity/sx9310.c b/drivers/iio/proximity/sx9310.c index dc2e11b43431..6d3f4ab8c6b2 100644 --- a/drivers/iio/proximity/sx9310.c +++ b/drivers/iio/proximity/sx9310.c @@ -6,19 +6,21 @@ * Based on SX9500 driver and Semtech driver using the input framework * <https://my.syncplicity.com/share/teouwsim8niiaud/ * linux-driver-SX9310_NoSmartHSensing>. - * Reworked April 2019 by Evan Green <evgreen@chromium.org> - * and January 2020 by Daniel Campello <campello@chromium.org> + * Reworked in April 2019 by Evan Green <evgreen@chromium.org> + * and in January 2020 by Daniel Campello <campello@chromium.org>. */ #include <linux/acpi.h> +#include <linux/bitfield.h> #include <linux/delay.h> #include <linux/i2c.h> #include <linux/irq.h> #include <linux/kernel.h> +#include <linux/mod_devicetable.h> #include <linux/module.h> -#include <linux/of.h> #include <linux/pm.h> #include <linux/regmap.h> +#include <linux/regulator/consumer.h> #include <linux/slab.h> #include <linux/iio/buffer.h> @@ -33,45 +35,44 @@ #define SX9310_REG_IRQ_SRC 0x00 #define SX9310_REG_STAT0 0x01 #define SX9310_REG_STAT1 0x02 +#define SX9310_REG_STAT1_COMPSTAT_MASK GENMASK(3, 0) #define SX9310_REG_IRQ_MSK 0x03 #define SX9310_CONVDONE_IRQ BIT(3) #define SX9310_FAR_IRQ BIT(5) #define SX9310_CLOSE_IRQ BIT(6) -#define SX9310_EVENT_IRQ (SX9310_FAR_IRQ | \ - SX9310_CLOSE_IRQ) #define SX9310_REG_IRQ_FUNC 0x04 #define SX9310_REG_PROX_CTRL0 0x10 -#define SX9310_REG_PROX_CTRL0_PROXSTAT2 0x10 -#define SX9310_REG_PROX_CTRL0_EN_MASK 0x0F +#define SX9310_REG_PROX_CTRL0_SENSOREN_MASK GENMASK(3, 0) +#define SX9310_REG_PROX_CTRL0_SCANPERIOD_MASK GENMASK(7, 4) +#define SX9310_REG_PROX_CTRL0_SCANPERIOD_15MS 0x01 #define SX9310_REG_PROX_CTRL1 0x11 #define SX9310_REG_PROX_CTRL2 0x12 -#define SX9310_REG_PROX_CTRL2_COMBMODE_ALL 0x80 -#define SX9310_REG_PROX_CTRL2_SHIELDEN_DYNAMIC 0x04 +#define SX9310_REG_PROX_CTRL2_COMBMODE_CS1_CS2 (0x02 << 6) +#define SX9310_REG_PROX_CTRL2_SHIELDEN_DYNAMIC (0x01 << 2) #define SX9310_REG_PROX_CTRL3 0x13 -#define SX9310_REG_PROX_CTRL3_GAIN0_X8 0x0c +#define SX9310_REG_PROX_CTRL3_GAIN0_X8 (0x03 << 2) #define SX9310_REG_PROX_CTRL3_GAIN12_X4 0x02 #define SX9310_REG_PROX_CTRL4 0x14 #define SX9310_REG_PROX_CTRL4_RESOLUTION_FINEST 0x07 #define SX9310_REG_PROX_CTRL5 0x15 -#define SX9310_REG_PROX_CTRL5_RANGE_SMALL 0xc0 -#define SX9310_REG_PROX_CTRL5_STARTUPSENS_CS1 0x04 +#define SX9310_REG_PROX_CTRL5_RANGE_SMALL (0x03 << 6) +#define SX9310_REG_PROX_CTRL5_STARTUPSENS_CS1 (0x01 << 2) #define SX9310_REG_PROX_CTRL5_RAWFILT_1P25 0x02 #define SX9310_REG_PROX_CTRL6 0x16 -#define SX9310_REG_PROX_CTRL6_COMP_COMMON 0x20 +#define SX9310_REG_PROX_CTRL6_AVGTHRESH_DEFAULT 0x20 #define SX9310_REG_PROX_CTRL7 0x17 -#define SX9310_REG_PROX_CTRL7_AVGNEGFILT_2 0x08 +#define SX9310_REG_PROX_CTRL7_AVGNEGFILT_2 (0x01 << 3) #define SX9310_REG_PROX_CTRL7_AVGPOSFILT_512 0x05 #define SX9310_REG_PROX_CTRL8 0x18 #define SX9310_REG_PROX_CTRL9 0x19 -#define SX9310_REG_PROX_CTRL8_9_PTHRESH12_28 0x40 -#define SX9310_REG_PROX_CTRL8_9_PTHRESH_96 0x88 +#define SX9310_REG_PROX_CTRL8_9_PTHRESH_28 (0x08 << 3) +#define SX9310_REG_PROX_CTRL8_9_PTHRESH_96 (0x11 << 3) #define SX9310_REG_PROX_CTRL8_9_BODYTHRESH_900 0x03 #define SX9310_REG_PROX_CTRL8_9_BODYTHRESH_1500 0x05 #define SX9310_REG_PROX_CTRL10 0x1a -#define SX9310_REG_PROX_CTRL10_HYST_6PCT 0x10 -#define SX9310_REG_PROX_CTRL10_CLOSE_DEBOUNCE_8 0x12 -#define SX9310_REG_PROX_CTRL10_FAR_DEBOUNCE_8 0x03 +#define SX9310_REG_PROX_CTRL10_HYST_6PCT (0x01 << 4) +#define SX9310_REG_PROX_CTRL10_FAR_DEBOUNCE_2 0x01 #define SX9310_REG_PROX_CTRL11 0x1b #define SX9310_REG_PROX_CTRL12 0x1c #define SX9310_REG_PROX_CTRL13 0x1d @@ -82,8 +83,8 @@ #define SX9310_REG_PROX_CTRL18 0x22 #define SX9310_REG_PROX_CTRL19 0x23 #define SX9310_REG_SAR_CTRL0 0x2a -#define SX9310_REG_SAR_CTRL0_SARDEB_4_SAMPLES 0x40 -#define SX9310_REG_SAR_CTRL0_SARHYST_8 0x10 +#define SX9310_REG_SAR_CTRL0_SARDEB_4_SAMPLES (0x02 << 5) +#define SX9310_REG_SAR_CTRL0_SARHYST_8 (0x02 << 3) #define SX9310_REG_SAR_CTRL1 0x2b /* Each increment of the slope register is 0.0078125. */ #define SX9310_REG_SAR_CTRL1_SLOPE(_hnslope) (_hnslope / 78125) @@ -91,39 +92,28 @@ #define SX9310_REG_SAR_CTRL2_SAROFFSET_DEFAULT 0x3c #define SX9310_REG_SENSOR_SEL 0x30 - #define SX9310_REG_USE_MSB 0x31 #define SX9310_REG_USE_LSB 0x32 - #define SX9310_REG_AVG_MSB 0x33 #define SX9310_REG_AVG_LSB 0x34 - #define SX9310_REG_DIFF_MSB 0x35 #define SX9310_REG_DIFF_LSB 0x36 - #define SX9310_REG_OFFSET_MSB 0x37 #define SX9310_REG_OFFSET_LSB 0x38 - #define SX9310_REG_SAR_MSB 0x39 #define SX9310_REG_SAR_LSB 0x3a - -#define SX9310_REG_I2CADDR 0x40 +#define SX9310_REG_I2C_ADDR 0x40 #define SX9310_REG_PAUSE 0x41 #define SX9310_REG_WHOAMI 0x42 #define SX9310_WHOAMI_VALUE 0x01 #define SX9311_WHOAMI_VALUE 0x02 - #define SX9310_REG_RESET 0x7f #define SX9310_SOFT_RESET 0xde -#define SX9310_SCAN_PERIOD_MASK GENMASK(7, 4) -#define SX9310_SCAN_PERIOD_SHIFT 4 - -#define SX9310_COMPSTAT_MASK GENMASK(3, 0) /* 4 hardware channels, as defined in STAT0: COMB, CS2, CS1 and CS0. */ #define SX9310_NUM_CHANNELS 4 -#define SX9310_CHAN_ENABLED_MASK GENMASK(3, 0) +static_assert(SX9310_NUM_CHANNELS < BITS_PER_LONG); struct sx9310_data { /* Serialize access to registers and channel configuration */ @@ -131,20 +121,24 @@ struct sx9310_data { struct i2c_client *client; struct iio_trigger *trig; struct regmap *regmap; + struct regulator_bulk_data supplies[2]; /* * Last reading of the proximity status for each channel. * We only send an event to user space when this changes. */ - bool prox_stat[SX9310_NUM_CHANNELS]; + unsigned long chan_prox_stat; bool trigger_enabled; - __be16 buffer[SX9310_NUM_CHANNELS + - 4]; /* 64-bit data + 64-bit timestamp */ + /* Ensure correct alignment of timestamp when present. */ + struct { + __be16 channels[SX9310_NUM_CHANNELS]; + s64 ts __aligned(8); + } buffer; /* Remember enabled channels and sample rate during suspend. */ unsigned int suspend_ctrl0; struct completion completion; - unsigned int chan_read, chan_event; - int channel_users[SX9310_NUM_CHANNELS]; - int whoami; + unsigned long chan_read; + unsigned long chan_event; + unsigned int whoami; }; static const struct iio_event_spec sx9310_events[] = { @@ -251,7 +245,7 @@ static const struct regmap_range sx9310_readable_reg_ranges[] = { regmap_reg_range(SX9310_REG_PROX_CTRL0, SX9310_REG_PROX_CTRL19), regmap_reg_range(SX9310_REG_SAR_CTRL0, SX9310_REG_SAR_CTRL2), regmap_reg_range(SX9310_REG_SENSOR_SEL, SX9310_REG_SAR_LSB), - regmap_reg_range(SX9310_REG_I2CADDR, SX9310_REG_WHOAMI), + regmap_reg_range(SX9310_REG_I2C_ADDR, SX9310_REG_WHOAMI), regmap_reg_range(SX9310_REG_RESET, SX9310_REG_RESET), }; @@ -285,15 +279,16 @@ static const struct regmap_config sx9310_regmap_config = { }; static int sx9310_update_chan_en(struct sx9310_data *data, - unsigned int chan_read, - unsigned int chan_event) + unsigned long chan_read, + unsigned long chan_event) { int ret; + unsigned long channels = chan_read | chan_event; - if ((data->chan_read | data->chan_event) != (chan_read | chan_event)) { + if ((data->chan_read | data->chan_event) != channels) { ret = regmap_update_bits(data->regmap, SX9310_REG_PROX_CTRL0, - SX9310_CHAN_ENABLED_MASK, - chan_read | chan_event); + SX9310_REG_PROX_CTRL0_SENSOREN_MASK, + channels); if (ret) return ret; } @@ -328,11 +323,15 @@ static int sx9310_put_event_channel(struct sx9310_data *data, int channel) static int sx9310_enable_irq(struct sx9310_data *data, unsigned int irq) { + if (!data->client->irq) + return 0; return regmap_update_bits(data->regmap, SX9310_REG_IRQ_MSK, irq, irq); } static int sx9310_disable_irq(struct sx9310_data *data, unsigned int irq) { + if (!data->client->irq) + return 0; return regmap_update_bits(data->regmap, SX9310_REG_IRQ_MSK, irq, 0); } @@ -342,10 +341,10 @@ static int sx9310_read_prox_data(struct sx9310_data *data, int ret; ret = regmap_write(data->regmap, SX9310_REG_SENSOR_SEL, chan->channel); - if (ret < 0) + if (ret) return ret; - return regmap_bulk_read(data->regmap, chan->address, val, 2); + return regmap_bulk_read(data->regmap, chan->address, val, sizeof(*val)); } /* @@ -358,10 +357,10 @@ static int sx9310_wait_for_sample(struct sx9310_data *data) unsigned int val; ret = regmap_read(data->regmap, SX9310_REG_PROX_CTRL0, &val); - if (ret < 0) + if (ret) return ret; - val = (val & SX9310_SCAN_PERIOD_MASK) >> SX9310_SCAN_PERIOD_SHIFT; + val = FIELD_GET(SX9310_REG_PROX_CTRL0_SCANPERIOD_MASK, val); msleep(sx9310_scan_period_table[val]); @@ -371,22 +370,22 @@ static int sx9310_wait_for_sample(struct sx9310_data *data) static int sx9310_read_proximity(struct sx9310_data *data, const struct iio_chan_spec *chan, int *val) { - int ret = 0; + int ret; __be16 rawval; mutex_lock(&data->mutex); ret = sx9310_get_read_channel(data, chan->channel); - if (ret < 0) + if (ret) goto out; ret = sx9310_enable_irq(data, SX9310_CONVDONE_IRQ); - if (ret < 0) + if (ret) goto out_put_channel; mutex_unlock(&data->mutex); - if (data->client->irq > 0) { + if (data->client->irq) { ret = wait_for_completion_interruptible(&data->completion); reinit_completion(&data->completion); } else { @@ -395,22 +394,22 @@ static int sx9310_read_proximity(struct sx9310_data *data, mutex_lock(&data->mutex); - if (ret < 0) + if (ret) goto out_disable_irq; ret = sx9310_read_prox_data(data, chan, &rawval); - if (ret < 0) + if (ret) goto out_disable_irq; *val = sign_extend32(be16_to_cpu(rawval), - (chan->address == SX9310_REG_DIFF_MSB ? 11 : 15)); + chan->address == SX9310_REG_DIFF_MSB ? 11 : 15); ret = sx9310_disable_irq(data, SX9310_CONVDONE_IRQ); - if (ret < 0) + if (ret) goto out_put_channel; ret = sx9310_put_read_channel(data, chan->channel); - if (ret < 0) + if (ret) goto out; mutex_unlock(&data->mutex); @@ -430,12 +429,13 @@ out: static int sx9310_read_samp_freq(struct sx9310_data *data, int *val, int *val2) { unsigned int regval; - int ret = regmap_read(data->regmap, SX9310_REG_PROX_CTRL0, ®val); + int ret; - if (ret < 0) + ret = regmap_read(data->regmap, SX9310_REG_PROX_CTRL0, ®val); + if (ret) return ret; - regval = (regval & SX9310_SCAN_PERIOD_MASK) >> SX9310_SCAN_PERIOD_SHIFT; + regval = FIELD_GET(SX9310_REG_PROX_CTRL0_SCANPERIOD_MASK, regval); *val = sx9310_samp_freq_table[regval].val; *val2 = sx9310_samp_freq_table[regval].val2; @@ -482,9 +482,10 @@ static int sx9310_set_samp_freq(struct sx9310_data *data, int val, int val2) mutex_lock(&data->mutex); - ret = regmap_update_bits(data->regmap, SX9310_REG_PROX_CTRL0, - SX9310_SCAN_PERIOD_MASK, - i << SX9310_SCAN_PERIOD_SHIFT); + ret = regmap_update_bits( + data->regmap, SX9310_REG_PROX_CTRL0, + SX9310_REG_PROX_CTRL0_SCANPERIOD_MASK, + FIELD_PREP(SX9310_REG_PROX_CTRL0_SCANPERIOD_MASK, i)); mutex_unlock(&data->mutex); @@ -515,10 +516,9 @@ static irqreturn_t sx9310_irq_handler(int irq, void *private) iio_trigger_poll(data->trig); /* - * Even if no event is enabled, we need to wake the thread to - * clear the interrupt state by reading SX9310_REG_IRQ_SRC. It - * is not possible to do that here because regmap_read takes a - * mutex. + * Even if no event is enabled, we need to wake the thread to clear the + * interrupt state by reading SX9310_REG_IRQ_SRC. + * It is not possible to do that here because regmap_read takes a mutex. */ return IRQ_WAKE_THREAD; } @@ -529,32 +529,32 @@ static void sx9310_push_events(struct iio_dev *indio_dev) unsigned int val, chan; struct sx9310_data *data = iio_priv(indio_dev); s64 timestamp = iio_get_time_ns(indio_dev); + unsigned long prox_changed; /* Read proximity state on all channels */ ret = regmap_read(data->regmap, SX9310_REG_STAT0, &val); - if (ret < 0) { + if (ret) { dev_err(&data->client->dev, "i2c transfer error in irq\n"); return; } - for (chan = 0; chan < SX9310_NUM_CHANNELS; chan++) { + /* + * Only iterate over channels with changes on proximity status that have + * events enabled. + */ + prox_changed = (data->chan_prox_stat ^ val) & data->chan_event; + + for_each_set_bit(chan, &prox_changed, SX9310_NUM_CHANNELS) { int dir; u64 ev; - bool new_prox = val & BIT(chan); - if (!(data->chan_event & BIT(chan))) - continue; - if (new_prox == data->prox_stat[chan]) - /* No change on this channel. */ - continue; - - dir = new_prox ? IIO_EV_DIR_FALLING : IIO_EV_DIR_RISING; + dir = (val & BIT(chan)) ? IIO_EV_DIR_FALLING : IIO_EV_DIR_RISING; ev = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, chan, IIO_EV_TYPE_THRESH, dir); iio_push_event(indio_dev, ev, timestamp); - data->prox_stat[chan] = new_prox; } + data->chan_prox_stat = val; } static irqreturn_t sx9310_irq_thread_handler(int irq, void *private) @@ -567,12 +567,12 @@ static irqreturn_t sx9310_irq_thread_handler(int irq, void *private) mutex_lock(&data->mutex); ret = regmap_read(data->regmap, SX9310_REG_IRQ_SRC, &val); - if (ret < 0) { + if (ret) { dev_err(&data->client->dev, "i2c transfer error in irq\n"); goto out; } - if (val & SX9310_EVENT_IRQ) + if (val & (SX9310_FAR_IRQ | SX9310_CLOSE_IRQ)) sx9310_push_events(indio_dev); if (val & SX9310_CONVDONE_IRQ) @@ -600,6 +600,7 @@ static int sx9310_write_event_config(struct iio_dev *indio_dev, enum iio_event_direction dir, int state) { struct sx9310_data *data = iio_priv(indio_dev); + unsigned int eventirq = SX9310_FAR_IRQ | SX9310_CLOSE_IRQ; int ret; /* If the state hasn't changed, there's nothing to do. */ @@ -609,20 +610,20 @@ static int sx9310_write_event_config(struct iio_dev *indio_dev, mutex_lock(&data->mutex); if (state) { ret = sx9310_get_event_channel(data, chan->channel); - if (ret < 0) + if (ret) goto out_unlock; if (!(data->chan_event & ~BIT(chan->channel))) { - ret = sx9310_enable_irq(data, SX9310_EVENT_IRQ); - if (ret < 0) + ret = sx9310_enable_irq(data, eventirq); + if (ret) sx9310_put_event_channel(data, chan->channel); } } else { ret = sx9310_put_event_channel(data, chan->channel); - if (ret < 0) + if (ret) goto out_unlock; if (!data->chan_event) { - ret = sx9310_disable_irq(data, SX9310_EVENT_IRQ); - if (ret < 0) + ret = sx9310_disable_irq(data, eventirq); + if (ret) sx9310_get_event_channel(data, chan->channel); } } @@ -634,7 +635,7 @@ out_unlock: static struct attribute *sx9310_attributes[] = { &iio_dev_attr_sampling_frequency_available.dev_attr.attr, - NULL, + NULL }; static const struct attribute_group sx9310_attribute_group = { @@ -661,7 +662,7 @@ static int sx9310_set_trigger_state(struct iio_trigger *trig, bool state) ret = sx9310_enable_irq(data, SX9310_CONVDONE_IRQ); else if (!data->chan_read) ret = sx9310_disable_irq(data, SX9310_CONVDONE_IRQ); - if (ret < 0) + if (ret) goto out; data->trigger_enabled = state; @@ -690,13 +691,13 @@ static irqreturn_t sx9310_trigger_handler(int irq, void *private) indio_dev->masklength) { ret = sx9310_read_prox_data(data, &indio_dev->channels[bit], &val); - if (ret < 0) + if (ret) goto out; - data->buffer[i++] = val; + data->buffer.channels[i++] = val; } - iio_push_to_buffers_with_timestamp(indio_dev, data->buffer, + iio_push_to_buffers_with_timestamp(indio_dev, &data->buffer, pf->timestamp); out: @@ -710,13 +711,13 @@ out: static int sx9310_buffer_preenable(struct iio_dev *indio_dev) { struct sx9310_data *data = iio_priv(indio_dev); - unsigned int channels = 0; + unsigned long channels = 0; int bit, ret; mutex_lock(&data->mutex); for_each_set_bit(bit, indio_dev->active_scan_mask, indio_dev->masklength) - channels |= BIT(indio_dev->channels[bit].channel); + __set_bit(indio_dev->channels[bit].channel, &channels); ret = sx9310_update_chan_en(data, channels, data->chan_event); mutex_unlock(&data->mutex); @@ -744,89 +745,77 @@ struct sx9310_reg_default { u8 def; }; -#define SX_INIT(_reg, _def) \ - { \ - .reg = SX9310_REG_##_reg, \ - .def = _def, \ - } - static const struct sx9310_reg_default sx9310_default_regs[] = { - SX_INIT(IRQ_MSK, 0x00), - SX_INIT(IRQ_FUNC, 0x00), + { SX9310_REG_IRQ_MSK, 0x00 }, + { SX9310_REG_IRQ_FUNC, 0x00 }, /* * The lower 4 bits should not be set as it enable sensors measurements. * Turning the detection on before the configuration values are set to * good values can cause the device to return erroneous readings. */ - SX_INIT(PROX_CTRL0, SX9310_REG_PROX_CTRL0_PROXSTAT2), - SX_INIT(PROX_CTRL1, 0x00), - SX_INIT(PROX_CTRL2, SX9310_REG_PROX_CTRL2_COMBMODE_ALL | - SX9310_REG_PROX_CTRL2_SHIELDEN_DYNAMIC), - SX_INIT(PROX_CTRL3, SX9310_REG_PROX_CTRL3_GAIN0_X8 | - SX9310_REG_PROX_CTRL3_GAIN12_X4), - SX_INIT(PROX_CTRL4, SX9310_REG_PROX_CTRL4_RESOLUTION_FINEST), - SX_INIT(PROX_CTRL5, SX9310_REG_PROX_CTRL5_RANGE_SMALL | - SX9310_REG_PROX_CTRL5_STARTUPSENS_CS1 | - SX9310_REG_PROX_CTRL5_RAWFILT_1P25), - SX_INIT(PROX_CTRL6, SX9310_REG_PROX_CTRL6_COMP_COMMON), - SX_INIT(PROX_CTRL7, SX9310_REG_PROX_CTRL7_AVGNEGFILT_2 | - SX9310_REG_PROX_CTRL7_AVGPOSFILT_512), - SX_INIT(PROX_CTRL8, SX9310_REG_PROX_CTRL8_9_PTHRESH_96 | - SX9310_REG_PROX_CTRL8_9_BODYTHRESH_1500), - SX_INIT(PROX_CTRL9, SX9310_REG_PROX_CTRL8_9_PTHRESH12_28 | - SX9310_REG_PROX_CTRL8_9_BODYTHRESH_900), - SX_INIT(PROX_CTRL10, SX9310_REG_PROX_CTRL10_HYST_6PCT | - SX9310_REG_PROX_CTRL10_CLOSE_DEBOUNCE_8 | - SX9310_REG_PROX_CTRL10_FAR_DEBOUNCE_8), - SX_INIT(PROX_CTRL11, 0x00), - SX_INIT(PROX_CTRL12, 0x00), - SX_INIT(PROX_CTRL13, 0x00), - SX_INIT(PROX_CTRL14, 0x00), - SX_INIT(PROX_CTRL15, 0x00), - SX_INIT(PROX_CTRL16, 0x00), - SX_INIT(PROX_CTRL17, 0x00), - SX_INIT(PROX_CTRL18, 0x00), - SX_INIT(PROX_CTRL19, 0x00), - SX_INIT(SAR_CTRL0, SX9310_REG_SAR_CTRL0_SARDEB_4_SAMPLES | - SX9310_REG_SAR_CTRL0_SARHYST_8), - SX_INIT(SAR_CTRL1, SX9310_REG_SAR_CTRL1_SLOPE(10781250)), - SX_INIT(SAR_CTRL2, SX9310_REG_SAR_CTRL2_SAROFFSET_DEFAULT), + { SX9310_REG_PROX_CTRL0, SX9310_REG_PROX_CTRL0_SCANPERIOD_15MS }, + { SX9310_REG_PROX_CTRL1, 0x00 }, + { SX9310_REG_PROX_CTRL2, SX9310_REG_PROX_CTRL2_COMBMODE_CS1_CS2 | + SX9310_REG_PROX_CTRL2_SHIELDEN_DYNAMIC }, + { SX9310_REG_PROX_CTRL3, SX9310_REG_PROX_CTRL3_GAIN0_X8 | + SX9310_REG_PROX_CTRL3_GAIN12_X4 }, + { SX9310_REG_PROX_CTRL4, SX9310_REG_PROX_CTRL4_RESOLUTION_FINEST }, + { SX9310_REG_PROX_CTRL5, SX9310_REG_PROX_CTRL5_RANGE_SMALL | + SX9310_REG_PROX_CTRL5_STARTUPSENS_CS1 | + SX9310_REG_PROX_CTRL5_RAWFILT_1P25 }, + { SX9310_REG_PROX_CTRL6, SX9310_REG_PROX_CTRL6_AVGTHRESH_DEFAULT }, + { SX9310_REG_PROX_CTRL7, SX9310_REG_PROX_CTRL7_AVGNEGFILT_2 | + SX9310_REG_PROX_CTRL7_AVGPOSFILT_512 }, + { SX9310_REG_PROX_CTRL8, SX9310_REG_PROX_CTRL8_9_PTHRESH_96 | + SX9310_REG_PROX_CTRL8_9_BODYTHRESH_1500 }, + { SX9310_REG_PROX_CTRL9, SX9310_REG_PROX_CTRL8_9_PTHRESH_28 | + SX9310_REG_PROX_CTRL8_9_BODYTHRESH_900 }, + { SX9310_REG_PROX_CTRL10, SX9310_REG_PROX_CTRL10_HYST_6PCT | + SX9310_REG_PROX_CTRL10_FAR_DEBOUNCE_2 }, + { SX9310_REG_PROX_CTRL11, 0x00 }, + { SX9310_REG_PROX_CTRL12, 0x00 }, + { SX9310_REG_PROX_CTRL13, 0x00 }, + { SX9310_REG_PROX_CTRL14, 0x00 }, + { SX9310_REG_PROX_CTRL15, 0x00 }, + { SX9310_REG_PROX_CTRL16, 0x00 }, + { SX9310_REG_PROX_CTRL17, 0x00 }, + { SX9310_REG_PROX_CTRL18, 0x00 }, + { SX9310_REG_PROX_CTRL19, 0x00 }, + { SX9310_REG_SAR_CTRL0, SX9310_REG_SAR_CTRL0_SARDEB_4_SAMPLES | + SX9310_REG_SAR_CTRL0_SARHYST_8 }, + { SX9310_REG_SAR_CTRL1, SX9310_REG_SAR_CTRL1_SLOPE(10781250) }, + { SX9310_REG_SAR_CTRL2, SX9310_REG_SAR_CTRL2_SAROFFSET_DEFAULT }, }; /* Activate all channels and perform an initial compensation. */ static int sx9310_init_compensation(struct iio_dev *indio_dev) { struct sx9310_data *data = iio_priv(indio_dev); - int i, ret; + int ret; unsigned int val; unsigned int ctrl0; ret = regmap_read(data->regmap, SX9310_REG_PROX_CTRL0, &ctrl0); - if (ret < 0) + if (ret) return ret; /* run the compensation phase on all channels */ ret = regmap_write(data->regmap, SX9310_REG_PROX_CTRL0, - ctrl0 | SX9310_REG_PROX_CTRL0_EN_MASK); - if (ret < 0) + ctrl0 | SX9310_REG_PROX_CTRL0_SENSOREN_MASK); + if (ret) return ret; - for (i = 100; i >= 0; i--) { - msleep(20); - ret = regmap_read(data->regmap, SX9310_REG_STAT1, &val); - if (ret < 0) - goto out; - if (!(val & SX9310_COMPSTAT_MASK)) - break; - } - - if (i < 0) { - dev_err(&data->client->dev, - "initial compensation timed out: 0x%02x", val); - ret = -ETIMEDOUT; + ret = regmap_read_poll_timeout(data->regmap, SX9310_REG_STAT1, val, + !(val & SX9310_REG_STAT1_COMPSTAT_MASK), + 20000, 2000000); + if (ret) { + if (ret == -ETIMEDOUT) + dev_err(&data->client->dev, + "initial compensation timed out: 0x%02x\n", + val); + return ret; } -out: regmap_write(data->regmap, SX9310_REG_PROX_CTRL0, ctrl0); return ret; } @@ -839,21 +828,21 @@ static int sx9310_init_device(struct iio_dev *indio_dev) unsigned int i, val; ret = regmap_write(data->regmap, SX9310_REG_RESET, SX9310_SOFT_RESET); - if (ret < 0) + if (ret) return ret; usleep_range(1000, 2000); /* power-up time is ~1ms. */ /* Clear reset interrupt state by reading SX9310_REG_IRQ_SRC. */ ret = regmap_read(data->regmap, SX9310_REG_IRQ_SRC, &val); - if (ret < 0) + if (ret) return ret; /* Program some sane defaults. */ for (i = 0; i < ARRAY_SIZE(sx9310_default_regs); i++) { initval = &sx9310_default_regs[i]; ret = regmap_write(data->regmap, initval->reg, initval->def); - if (ret < 0) + if (ret) return ret; } @@ -862,24 +851,15 @@ static int sx9310_init_device(struct iio_dev *indio_dev) static int sx9310_set_indio_dev_name(struct device *dev, struct iio_dev *indio_dev, - const struct i2c_device_id *id, int whoami) + unsigned int whoami) { - const struct acpi_device_id *acpi_id; - - /* id will be NULL when enumerated via ACPI */ - if (id) { - if (id->driver_data != whoami) - dev_err(dev, "WHOAMI does not match i2c_device_id: %s", - id->name); - } else if (ACPI_HANDLE(dev)) { - acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev); - if (!acpi_id) - return -ENODEV; - if (acpi_id->driver_data != whoami) - dev_err(dev, "WHOAMI does not match acpi_device_id: %s", - acpi_id->id); - } else + unsigned int long ddata; + + ddata = (uintptr_t)device_get_match_data(dev); + if (ddata != whoami) { + dev_err(dev, "WHOAMI does not match device data: %u\n", whoami); return -ENODEV; + } switch (whoami) { case SX9310_WHOAMI_VALUE: @@ -889,26 +869,35 @@ static int sx9310_set_indio_dev_name(struct device *dev, indio_dev->name = "sx9311"; break; default: - dev_err(dev, "unexpected WHOAMI response: %u", whoami); + dev_err(dev, "unexpected WHOAMI response: %u\n", whoami); return -ENODEV; } return 0; } -static int sx9310_probe(struct i2c_client *client, - const struct i2c_device_id *id) +static void sx9310_regulator_disable(void *_data) +{ + struct sx9310_data *data = _data; + + regulator_bulk_disable(ARRAY_SIZE(data->supplies), data->supplies); +} + +static int sx9310_probe(struct i2c_client *client) { int ret; + struct device *dev = &client->dev; struct iio_dev *indio_dev; struct sx9310_data *data; - indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); - if (indio_dev == NULL) + indio_dev = devm_iio_device_alloc(dev, sizeof(*data)); + if (!indio_dev) return -ENOMEM; data = iio_priv(indio_dev); data->client = client; + data->supplies[0].supply = "vdd"; + data->supplies[1].supply = "svdd"; mutex_init(&data->mutex); init_completion(&data->completion); @@ -916,19 +905,32 @@ static int sx9310_probe(struct i2c_client *client, if (IS_ERR(data->regmap)) return PTR_ERR(data->regmap); + ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(data->supplies), + data->supplies); + if (ret) + return ret; + + ret = regulator_bulk_enable(ARRAY_SIZE(data->supplies), data->supplies); + if (ret) + return ret; + /* Must wait for Tpor time after initial power up */ + usleep_range(1000, 1100); + + ret = devm_add_action_or_reset(dev, sx9310_regulator_disable, data); + if (ret) + return ret; + ret = regmap_read(data->regmap, SX9310_REG_WHOAMI, &data->whoami); - if (ret < 0) { - dev_err(&client->dev, "error in reading WHOAMI register: %d", - ret); + if (ret) { + dev_err(dev, "error in reading WHOAMI register: %d", ret); return ret; } - ret = sx9310_set_indio_dev_name(&client->dev, indio_dev, id, - data->whoami); - if (ret < 0) + ret = sx9310_set_indio_dev_name(dev, indio_dev, data->whoami); + if (ret) return ret; - ACPI_COMPANION_SET(&indio_dev->dev, ACPI_COMPANION(&client->dev)); + ACPI_COMPANION_SET(&indio_dev->dev, ACPI_COMPANION(dev)); indio_dev->channels = sx9310_channels; indio_dev->num_channels = ARRAY_SIZE(sx9310_channels); indio_dev->info = &sx9310_info; @@ -936,41 +938,41 @@ static int sx9310_probe(struct i2c_client *client, i2c_set_clientdata(client, indio_dev); ret = sx9310_init_device(indio_dev); - if (ret < 0) + if (ret) return ret; if (client->irq) { - ret = devm_request_threaded_irq(&client->dev, client->irq, + ret = devm_request_threaded_irq(dev, client->irq, sx9310_irq_handler, sx9310_irq_thread_handler, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, + IRQF_ONESHOT, "sx9310_event", indio_dev); - if (ret < 0) + if (ret) return ret; - data->trig = - devm_iio_trigger_alloc(&client->dev, "%s-dev%d", - indio_dev->name, indio_dev->id); + data->trig = devm_iio_trigger_alloc(dev, "%s-dev%d", + indio_dev->name, + indio_dev->id); if (!data->trig) return -ENOMEM; - data->trig->dev.parent = &client->dev; + data->trig->dev.parent = dev; data->trig->ops = &sx9310_trigger_ops; iio_trigger_set_drvdata(data->trig, indio_dev); - ret = devm_iio_trigger_register(&client->dev, data->trig); + ret = devm_iio_trigger_register(dev, data->trig); if (ret) return ret; } - ret = devm_iio_triggered_buffer_setup(&client->dev, indio_dev, + ret = devm_iio_triggered_buffer_setup(dev, indio_dev, iio_pollfunc_store_time, sx9310_trigger_handler, &sx9310_buffer_setup_ops); - if (ret < 0) + if (ret) return ret; - return devm_iio_device_register(&client->dev, indio_dev); + return devm_iio_device_register(dev, indio_dev); } static int __maybe_unused sx9310_suspend(struct device *dev) @@ -985,11 +987,10 @@ static int __maybe_unused sx9310_suspend(struct device *dev) mutex_lock(&data->mutex); ret = regmap_read(data->regmap, SX9310_REG_PROX_CTRL0, &data->suspend_ctrl0); - if (ret) goto out; - ctrl0 = data->suspend_ctrl0 & ~SX9310_REG_PROX_CTRL0_EN_MASK; + ctrl0 = data->suspend_ctrl0 & ~SX9310_REG_PROX_CTRL0_SENSOREN_MASK; ret = regmap_write(data->regmap, SX9310_REG_PROX_CTRL0, ctrl0); if (ret) goto out; @@ -1017,10 +1018,11 @@ static int __maybe_unused sx9310_resume(struct device *dev) out: mutex_unlock(&data->mutex); + if (ret) + return ret; enable_irq(data->client->irq); - - return ret; + return 0; } static const struct dev_pm_ops sx9310_pm_ops = { @@ -1030,32 +1032,39 @@ static const struct dev_pm_ops sx9310_pm_ops = { static const struct acpi_device_id sx9310_acpi_match[] = { { "STH9310", SX9310_WHOAMI_VALUE }, { "STH9311", SX9311_WHOAMI_VALUE }, - {}, + {} }; MODULE_DEVICE_TABLE(acpi, sx9310_acpi_match); static const struct of_device_id sx9310_of_match[] = { - { .compatible = "semtech,sx9310" }, - { .compatible = "semtech,sx9311" }, - {}, + { .compatible = "semtech,sx9310", (void *)SX9310_WHOAMI_VALUE }, + { .compatible = "semtech,sx9311", (void *)SX9311_WHOAMI_VALUE }, + {} }; MODULE_DEVICE_TABLE(of, sx9310_of_match); static const struct i2c_device_id sx9310_id[] = { { "sx9310", SX9310_WHOAMI_VALUE }, { "sx9311", SX9311_WHOAMI_VALUE }, - {}, + {} }; MODULE_DEVICE_TABLE(i2c, sx9310_id); static struct i2c_driver sx9310_driver = { .driver = { .name = "sx9310", - .acpi_match_table = ACPI_PTR(sx9310_acpi_match), - .of_match_table = of_match_ptr(sx9310_of_match), + .acpi_match_table = sx9310_acpi_match, + .of_match_table = sx9310_of_match, .pm = &sx9310_pm_ops, + + /* + * Lots of i2c transfers in probe + over 200 ms waiting in + * sx9310_init_compensation() mean a slow probe; prefer async + * so we don't delay boot if we're builtin to the kernel. + */ + .probe_type = PROBE_PREFER_ASYNCHRONOUS, }, - .probe = sx9310_probe, + .probe_new = sx9310_probe, .id_table = sx9310_id, }; module_i2c_driver(sx9310_driver); diff --git a/drivers/iio/proximity/vl53l0x-i2c.c b/drivers/iio/proximity/vl53l0x-i2c.c index 5fbda9475ba9..235e125aeb3a 100644 --- a/drivers/iio/proximity/vl53l0x-i2c.c +++ b/drivers/iio/proximity/vl53l0x-i2c.c @@ -4,18 +4,19 @@ * * Copyright (C) 2016 STMicroelectronics Imaging Division. * Copyright (C) 2018 Song Qiang <songqiang1304521@gmail.com> + * Copyright (C) 2020 Ivan Drobyshevskyi <drobyshevskyi@gmail.com> * * Datasheet available at * <https://www.st.com/resource/en/datasheet/vl53l0x.pdf> * * Default 7-bit i2c slave address 0x29. * - * TODO: FIFO buffer, continuous mode, interrupts, range selection, - * sensor ID check. + * TODO: FIFO buffer, continuous mode, range selection, sensor ID check. */ #include <linux/delay.h> #include <linux/i2c.h> +#include <linux/interrupt.h> #include <linux/module.h> #include <linux/iio/iio.h> @@ -29,14 +30,72 @@ #define VL_REG_SYSRANGE_MODE_TIMED BIT(2) #define VL_REG_SYSRANGE_MODE_HISTOGRAM BIT(3) +#define VL_REG_SYSTEM_INTERRUPT_CONFIG_GPIO 0x0A +#define VL_REG_SYSTEM_INTERRUPT_GPIO_NEW_SAMPLE_READY BIT(2) + +#define VL_REG_SYSTEM_INTERRUPT_CLEAR 0x0B + #define VL_REG_RESULT_INT_STATUS 0x13 #define VL_REG_RESULT_RANGE_STATUS 0x14 #define VL_REG_RESULT_RANGE_STATUS_COMPLETE BIT(0) struct vl53l0x_data { struct i2c_client *client; + struct completion completion; }; +static irqreturn_t vl53l0x_handle_irq(int irq, void *priv) +{ + struct iio_dev *indio_dev = priv; + struct vl53l0x_data *data = iio_priv(indio_dev); + + complete(&data->completion); + + return IRQ_HANDLED; +} + +static int vl53l0x_configure_irq(struct i2c_client *client, + struct iio_dev *indio_dev) +{ + struct vl53l0x_data *data = iio_priv(indio_dev); + int ret; + + ret = devm_request_irq(&client->dev, client->irq, vl53l0x_handle_irq, + IRQF_TRIGGER_FALLING, indio_dev->name, indio_dev); + if (ret) { + dev_err(&client->dev, "devm_request_irq error: %d\n", ret); + return ret; + } + + ret = i2c_smbus_write_byte_data(data->client, + VL_REG_SYSTEM_INTERRUPT_CONFIG_GPIO, + VL_REG_SYSTEM_INTERRUPT_GPIO_NEW_SAMPLE_READY); + if (ret < 0) + dev_err(&client->dev, "failed to configure IRQ: %d\n", ret); + + return ret; +} + +static void vl53l0x_clear_irq(struct vl53l0x_data *data) +{ + struct device *dev = &data->client->dev; + int ret; + + ret = i2c_smbus_write_byte_data(data->client, + VL_REG_SYSTEM_INTERRUPT_CLEAR, 1); + if (ret < 0) + dev_err(dev, "failed to clear error irq: %d\n", ret); + + ret = i2c_smbus_write_byte_data(data->client, + VL_REG_SYSTEM_INTERRUPT_CLEAR, 0); + if (ret < 0) + dev_err(dev, "failed to clear range irq: %d\n", ret); + + ret = i2c_smbus_read_byte_data(data->client, VL_REG_RESULT_INT_STATUS); + if (ret < 0 || ret & 0x07) + dev_err(dev, "failed to clear irq: %d\n", ret); +} + static int vl53l0x_read_proximity(struct vl53l0x_data *data, const struct iio_chan_spec *chan, int *val) @@ -50,19 +109,31 @@ static int vl53l0x_read_proximity(struct vl53l0x_data *data, if (ret < 0) return ret; - do { - ret = i2c_smbus_read_byte_data(client, - VL_REG_RESULT_RANGE_STATUS); + if (data->client->irq) { + reinit_completion(&data->completion); + + ret = wait_for_completion_timeout(&data->completion, HZ/10); if (ret < 0) return ret; + else if (ret == 0) + return -ETIMEDOUT; - if (ret & VL_REG_RESULT_RANGE_STATUS_COMPLETE) - break; + vl53l0x_clear_irq(data); + } else { + do { + ret = i2c_smbus_read_byte_data(client, + VL_REG_RESULT_RANGE_STATUS); + if (ret < 0) + return ret; - usleep_range(1000, 5000); - } while (--tries); - if (!tries) - return -ETIMEDOUT; + if (ret & VL_REG_RESULT_RANGE_STATUS_COMPLETE) + break; + + usleep_range(1000, 5000); + } while (--tries); + if (!tries) + return -ETIMEDOUT; + } ret = i2c_smbus_read_i2c_block_data(client, VL_REG_RESULT_RANGE_STATUS, 12, buffer); @@ -140,6 +211,17 @@ static int vl53l0x_probe(struct i2c_client *client) indio_dev->num_channels = ARRAY_SIZE(vl53l0x_channels); indio_dev->modes = INDIO_DIRECT_MODE; + /* usage of interrupt is optional */ + if (client->irq) { + int ret; + + init_completion(&data->completion); + + ret = vl53l0x_configure_irq(client, indio_dev); + if (ret) + return ret; + } + return devm_iio_device_register(&client->dev, indio_dev); } diff --git a/drivers/iio/resolver/ad2s1200.c b/drivers/iio/resolver/ad2s1200.c index 6007abad116b..9746bd935628 100644 --- a/drivers/iio/resolver/ad2s1200.c +++ b/drivers/iio/resolver/ad2s1200.c @@ -12,6 +12,7 @@ #include <linux/device.h> #include <linux/gpio/consumer.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/mutex.h> #include <linux/spi/spi.h> #include <linux/sysfs.h> @@ -192,7 +193,7 @@ MODULE_DEVICE_TABLE(spi, ad2s1200_id); static struct spi_driver ad2s1200_driver = { .driver = { .name = DRV_NAME, - .of_match_table = of_match_ptr(ad2s1200_of_match), + .of_match_table = ad2s1200_of_match, }, .probe = ad2s1200_probe, .id_table = ad2s1200_id, diff --git a/drivers/iio/temperature/ltc2983.c b/drivers/iio/temperature/ltc2983.c index 55ff28a0f1c7..3b5ba26d7d86 100644 --- a/drivers/iio/temperature/ltc2983.c +++ b/drivers/iio/temperature/ltc2983.c @@ -1285,18 +1285,20 @@ static int ltc2983_parse_dt(struct ltc2983_data *st) ret = of_property_read_u32(child, "reg", &sensor.chan); if (ret) { dev_err(dev, "reg property must given for child nodes\n"); - return ret; + goto put_child; } /* check if we have a valid channel */ if (sensor.chan < LTC2983_MIN_CHANNELS_NR || sensor.chan > LTC2983_MAX_CHANNELS_NR) { + ret = -EINVAL; dev_err(dev, "chan:%d must be from 1 to 20\n", sensor.chan); - return -EINVAL; + goto put_child; } else if (channel_avail_mask & BIT(sensor.chan)) { + ret = -EINVAL; dev_err(dev, "chan:%d already in use\n", sensor.chan); - return -EINVAL; + goto put_child; } ret = of_property_read_u32(child, "adi,sensor-type", @@ -1304,7 +1306,7 @@ static int ltc2983_parse_dt(struct ltc2983_data *st) if (ret) { dev_err(dev, "adi,sensor-type property must given for child nodes\n"); - return ret; + goto put_child; } dev_dbg(dev, "Create new sensor, type %u, chann %u", @@ -1334,13 +1336,15 @@ static int ltc2983_parse_dt(struct ltc2983_data *st) st->sensors[chan] = ltc2983_adc_new(child, st, &sensor); } else { dev_err(dev, "Unknown sensor type %d\n", sensor.type); - return -EINVAL; + ret = -EINVAL; + goto put_child; } if (IS_ERR(st->sensors[chan])) { dev_err(dev, "Failed to create sensor %ld", PTR_ERR(st->sensors[chan])); - return PTR_ERR(st->sensors[chan]); + ret = PTR_ERR(st->sensors[chan]); + goto put_child; } /* set generic sensor parameters */ st->sensors[chan]->chan = sensor.chan; @@ -1351,6 +1355,9 @@ static int ltc2983_parse_dt(struct ltc2983_data *st) } return 0; +put_child: + of_node_put(child); + return ret; } static int ltc2983_setup(struct ltc2983_data *st, bool assign_iio) diff --git a/drivers/iio/temperature/mlx90632.c b/drivers/iio/temperature/mlx90632.c index 51b812bcff2e..503fe54a0bb9 100644 --- a/drivers/iio/temperature/mlx90632.c +++ b/drivers/iio/temperature/mlx90632.c @@ -10,7 +10,9 @@ #include <linux/err.h> #include <linux/gpio/consumer.h> #include <linux/i2c.h> +#include <linux/iopoll.h> #include <linux/kernel.h> +#include <linux/limits.h> #include <linux/module.h> #include <linux/math64.h> #include <linux/of.h> @@ -58,6 +60,8 @@ /* Control register address - volatile */ #define MLX90632_REG_CONTROL 0x3001 /* Control Register address */ #define MLX90632_CFG_PWR_MASK GENMASK(2, 1) /* PowerMode Mask */ +#define MLX90632_CFG_MTYP_MASK GENMASK(8, 4) /* Meas select Mask */ + /* PowerModes statuses */ #define MLX90632_PWR_STATUS(ctrl_val) (ctrl_val << 1) #define MLX90632_PWR_STATUS_HALT MLX90632_PWR_STATUS(0) /* hold */ @@ -65,6 +69,18 @@ #define MLX90632_PWR_STATUS_STEP MLX90632_PWR_STATUS(2) /* step */ #define MLX90632_PWR_STATUS_CONTINUOUS MLX90632_PWR_STATUS(3) /* continuous*/ +/* Measurement types */ +#define MLX90632_MTYP_MEDICAL 0 +#define MLX90632_MTYP_EXTENDED 17 + +/* Measurement type select*/ +#define MLX90632_MTYP_STATUS(ctrl_val) (ctrl_val << 4) +#define MLX90632_MTYP_STATUS_MEDICAL MLX90632_MTYP_STATUS(MLX90632_MTYP_MEDICAL) +#define MLX90632_MTYP_STATUS_EXTENDED MLX90632_MTYP_STATUS(MLX90632_MTYP_EXTENDED) + +/* I2C command register - volatile */ +#define MLX90632_REG_I2C_CMD 0x3005 /* I2C command Register address */ + /* Device status register - volatile */ #define MLX90632_REG_STATUS 0x3fff /* Device status register */ #define MLX90632_STAT_BUSY BIT(10) /* Device busy indicator */ @@ -78,26 +94,53 @@ #define MLX90632_RAM_2(meas_num) (MLX90632_ADDR_RAM + 3 * meas_num + 1) #define MLX90632_RAM_3(meas_num) (MLX90632_ADDR_RAM + 3 * meas_num + 2) +/* Name important RAM_MEAS channels */ +#define MLX90632_RAM_DSP5_EXTENDED_AMBIENT_1 MLX90632_RAM_3(17) +#define MLX90632_RAM_DSP5_EXTENDED_AMBIENT_2 MLX90632_RAM_3(18) +#define MLX90632_RAM_DSP5_EXTENDED_OBJECT_1 MLX90632_RAM_1(17) +#define MLX90632_RAM_DSP5_EXTENDED_OBJECT_2 MLX90632_RAM_2(17) +#define MLX90632_RAM_DSP5_EXTENDED_OBJECT_3 MLX90632_RAM_1(18) +#define MLX90632_RAM_DSP5_EXTENDED_OBJECT_4 MLX90632_RAM_2(18) +#define MLX90632_RAM_DSP5_EXTENDED_OBJECT_5 MLX90632_RAM_1(19) +#define MLX90632_RAM_DSP5_EXTENDED_OBJECT_6 MLX90632_RAM_2(19) + /* Magic constants */ #define MLX90632_ID_MEDICAL 0x0105 /* EEPROM DSPv5 Medical device id */ #define MLX90632_ID_CONSUMER 0x0205 /* EEPROM DSPv5 Consumer device id */ +#define MLX90632_ID_EXTENDED 0x0505 /* EEPROM DSPv5 Extended range device id */ +#define MLX90632_ID_MASK GENMASK(14, 0) /* DSP version and device ID in EE_VERSION */ #define MLX90632_DSP_VERSION 5 /* DSP version */ #define MLX90632_DSP_MASK GENMASK(7, 0) /* DSP version in EE_VERSION */ #define MLX90632_RESET_CMD 0x0006 /* Reset sensor (address or global) */ -#define MLX90632_REF_12 12LL /**< ResCtrlRef value of Ch 1 or Ch 2 */ -#define MLX90632_REF_3 12LL /**< ResCtrlRef value of Channel 3 */ -#define MLX90632_MAX_MEAS_NUM 31 /**< Maximum measurements in list */ -#define MLX90632_SLEEP_DELAY_MS 3000 /**< Autosleep delay */ +#define MLX90632_REF_12 12LL /* ResCtrlRef value of Ch 1 or Ch 2 */ +#define MLX90632_REF_3 12LL /* ResCtrlRef value of Channel 3 */ +#define MLX90632_MAX_MEAS_NUM 31 /* Maximum measurements in list */ +#define MLX90632_SLEEP_DELAY_MS 3000 /* Autosleep delay */ +#define MLX90632_EXTENDED_LIMIT 27000 /* Extended mode raw value limit */ +/** + * struct mlx90632_data - private data for the MLX90632 device + * @client: I2C client of the device + * @lock: Internal mutex for multiple reads for single measurement + * @regmap: Regmap of the device + * @emissivity: Object emissivity from 0 to 1000 where 1000 = 1. + * @mtyp: Measurement type physical sensor configuration for extended range + * calculations + * @object_ambient_temperature: Ambient temperature at object (might differ of + * the ambient temperature of sensor. + */ struct mlx90632_data { struct i2c_client *client; - struct mutex lock; /* Multiple reads for single measurement */ + struct mutex lock; struct regmap *regmap; u16 emissivity; + u8 mtyp; + u32 object_ambient_temperature; }; static const struct regmap_range mlx90632_volatile_reg_range[] = { regmap_reg_range(MLX90632_REG_I2C_ADDR, MLX90632_REG_CONTROL), + regmap_reg_range(MLX90632_REG_I2C_CMD, MLX90632_REG_I2C_CMD), regmap_reg_range(MLX90632_REG_STATUS, MLX90632_REG_STATUS), regmap_reg_range(MLX90632_RAM_1(0), MLX90632_RAM_3(MLX90632_MAX_MEAS_NUM)), @@ -113,6 +156,7 @@ static const struct regmap_range mlx90632_read_reg_range[] = { regmap_reg_range(MLX90632_EE_CTRL, MLX90632_EE_I2C_ADDR), regmap_reg_range(MLX90632_EE_Ha, MLX90632_EE_Hb), regmap_reg_range(MLX90632_REG_I2C_ADDR, MLX90632_REG_CONTROL), + regmap_reg_range(MLX90632_REG_I2C_CMD, MLX90632_REG_I2C_CMD), regmap_reg_range(MLX90632_REG_STATUS, MLX90632_REG_STATUS), regmap_reg_range(MLX90632_RAM_1(0), MLX90632_RAM_3(MLX90632_MAX_MEAS_NUM)), @@ -173,25 +217,19 @@ static s32 mlx90632_pwr_continuous(struct regmap *regmap) */ static int mlx90632_perform_measurement(struct mlx90632_data *data) { - int ret, tries = 100; unsigned int reg_status; + int ret; ret = regmap_update_bits(data->regmap, MLX90632_REG_STATUS, MLX90632_STAT_DATA_RDY, 0); if (ret < 0) return ret; - while (tries-- > 0) { - ret = regmap_read(data->regmap, MLX90632_REG_STATUS, - ®_status); - if (ret < 0) - return ret; - if (reg_status & MLX90632_STAT_DATA_RDY) - break; - usleep_range(10000, 11000); - } + ret = regmap_read_poll_timeout(data->regmap, MLX90632_REG_STATUS, reg_status, + !(reg_status & MLX90632_STAT_DATA_RDY), 10000, + 100 * 10000); - if (tries < 0) { + if (ret < 0) { dev_err(&data->client->dev, "data not ready"); return -ETIMEDOUT; } @@ -199,6 +237,26 @@ static int mlx90632_perform_measurement(struct mlx90632_data *data) return (reg_status & MLX90632_STAT_CYCLE_POS) >> 2; } +static int mlx90632_set_meas_type(struct regmap *regmap, u8 type) +{ + int ret; + + if ((type != MLX90632_MTYP_MEDICAL) && (type != MLX90632_MTYP_EXTENDED)) + return -EINVAL; + + ret = regmap_write(regmap, MLX90632_REG_I2C_CMD, MLX90632_RESET_CMD); + if (ret < 0) + return ret; + + ret = regmap_write_bits(regmap, MLX90632_REG_CONTROL, + (MLX90632_CFG_MTYP_MASK | MLX90632_CFG_PWR_MASK), + (MLX90632_MTYP_STATUS(type) | MLX90632_PWR_STATUS_HALT)); + if (ret < 0) + return ret; + + return mlx90632_pwr_continuous(regmap); +} + static int mlx90632_channel_new_select(int perform_ret, uint8_t *channel_new, uint8_t *channel_old) { @@ -300,6 +358,97 @@ read_unlock: return ret; } +static int mlx90632_read_ambient_raw_extended(struct regmap *regmap, + s16 *ambient_new_raw, s16 *ambient_old_raw) +{ + unsigned int read_tmp; + int ret; + + ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_AMBIENT_1, &read_tmp); + if (ret < 0) + return ret; + *ambient_new_raw = (s16)read_tmp; + + ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_AMBIENT_2, &read_tmp); + if (ret < 0) + return ret; + *ambient_old_raw = (s16)read_tmp; + + return 0; +} + +static int mlx90632_read_object_raw_extended(struct regmap *regmap, s16 *object_new_raw) +{ + unsigned int read_tmp; + s32 read; + int ret; + + ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_OBJECT_1, &read_tmp); + if (ret < 0) + return ret; + read = (s16)read_tmp; + + ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_OBJECT_2, &read_tmp); + if (ret < 0) + return ret; + read = read - (s16)read_tmp; + + ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_OBJECT_3, &read_tmp); + if (ret < 0) + return ret; + read = read - (s16)read_tmp; + + ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_OBJECT_4, &read_tmp); + if (ret < 0) + return ret; + read = (read + (s16)read_tmp) / 2; + + ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_OBJECT_5, &read_tmp); + if (ret < 0) + return ret; + read = read + (s16)read_tmp; + + ret = regmap_read(regmap, MLX90632_RAM_DSP5_EXTENDED_OBJECT_6, &read_tmp); + if (ret < 0) + return ret; + read = read + (s16)read_tmp; + + if (read > S16_MAX || read < S16_MIN) + return -ERANGE; + + *object_new_raw = read; + + return 0; +} + +static int mlx90632_read_all_channel_extended(struct mlx90632_data *data, s16 *object_new_raw, + s16 *ambient_new_raw, s16 *ambient_old_raw) +{ + s32 ret, meas; + + mutex_lock(&data->lock); + ret = mlx90632_set_meas_type(data->regmap, MLX90632_MTYP_EXTENDED); + if (ret < 0) + goto read_unlock; + + ret = read_poll_timeout(mlx90632_perform_measurement, meas, meas == 19, + 50000, 800000, false, data); + if (ret != 0) + goto read_unlock; + + ret = mlx90632_read_object_raw_extended(data->regmap, object_new_raw); + if (ret < 0) + goto read_unlock; + + ret = mlx90632_read_ambient_raw_extended(data->regmap, ambient_new_raw, ambient_old_raw); + +read_unlock: + (void) mlx90632_set_meas_type(data->regmap, MLX90632_MTYP_MEDICAL); + + mutex_unlock(&data->lock); + return ret; +} + static int mlx90632_read_ee_register(struct regmap *regmap, u16 reg_lsb, s32 *reg_value) { @@ -354,9 +503,23 @@ static s64 mlx90632_preprocess_temp_obj(s16 object_new_raw, s16 object_old_raw, return div64_s64((tmp << 19ULL), 1000LL); } +static s64 mlx90632_preprocess_temp_obj_extended(s16 object_new_raw, s16 ambient_new_raw, + s16 ambient_old_raw, s16 Ka) +{ + s64 VR_IR, kKa, tmp; + + kKa = ((s64)Ka * 1000LL) >> 10ULL; + VR_IR = (s64)ambient_old_raw * 1000000LL + + kKa * div64_s64((s64)ambient_new_raw * 1000LL, + MLX90632_REF_3); + tmp = div64_s64( + div64_s64((s64) object_new_raw * 1000000000000LL, MLX90632_REF_12), + VR_IR); + return div64_s64(tmp << 19ULL, 1000LL); +} + static s32 mlx90632_calc_temp_ambient(s16 ambient_new_raw, s16 ambient_old_raw, - s32 P_T, s32 P_R, s32 P_G, s32 P_O, - s16 Gb) + s32 P_T, s32 P_R, s32 P_G, s32 P_O, s16 Gb) { s64 Asub, Bsub, Ablock, Bblock, Cblock, AMB, sum; @@ -374,11 +537,11 @@ static s32 mlx90632_calc_temp_ambient(s16 ambient_new_raw, s16 ambient_old_raw, } static s32 mlx90632_calc_temp_object_iteration(s32 prev_object_temp, s64 object, - s64 TAdut, s32 Fa, s32 Fb, + s64 TAdut, s64 TAdut4, s32 Fa, s32 Fb, s32 Ga, s16 Ha, s16 Hb, u16 emissivity) { - s64 calcedKsTO, calcedKsTA, ir_Alpha, TAdut4, Alpha_corr; + s64 calcedKsTO, calcedKsTA, ir_Alpha, Alpha_corr; s64 Ha_customer, Hb_customer; Ha_customer = ((s64)Ha * 1000000LL) >> 14ULL; @@ -393,36 +556,66 @@ static s32 mlx90632_calc_temp_object_iteration(s32 prev_object_temp, s64 object, Alpha_corr = emissivity * div64_s64(Alpha_corr, 100000LL); Alpha_corr = div64_s64(Alpha_corr, 1000LL); ir_Alpha = div64_s64((s64)object * 10000000LL, Alpha_corr); - TAdut4 = (div64_s64(TAdut, 10000LL) + 27315) * - (div64_s64(TAdut, 10000LL) + 27315) * - (div64_s64(TAdut, 10000LL) + 27315) * - (div64_s64(TAdut, 10000LL) + 27315); return (int_sqrt64(int_sqrt64(ir_Alpha * 1000000000000LL + TAdut4)) - 27315 - Hb_customer) * 10; } +static s64 mlx90632_calc_ta4(s64 TAdut, s64 scale) +{ + return (div64_s64(TAdut, scale) + 27315) * + (div64_s64(TAdut, scale) + 27315) * + (div64_s64(TAdut, scale) + 27315) * + (div64_s64(TAdut, scale) + 27315); +} + static s32 mlx90632_calc_temp_object(s64 object, s64 ambient, s32 Ea, s32 Eb, s32 Fa, s32 Fb, s32 Ga, s16 Ha, s16 Hb, u16 tmp_emi) { - s64 kTA, kTA0, TAdut; + s64 kTA, kTA0, TAdut, TAdut4; s64 temp = 25000; s8 i; kTA = (Ea * 1000LL) >> 16LL; kTA0 = (Eb * 1000LL) >> 8LL; TAdut = div64_s64(((ambient - kTA0) * 1000000LL), kTA) + 25 * 1000000LL; + TAdut4 = mlx90632_calc_ta4(TAdut, 10000LL); /* Iterations of calculation as described in datasheet */ for (i = 0; i < 5; ++i) { - temp = mlx90632_calc_temp_object_iteration(temp, object, TAdut, + temp = mlx90632_calc_temp_object_iteration(temp, object, TAdut, TAdut4, Fa, Fb, Ga, Ha, Hb, tmp_emi); } return temp; } +static s32 mlx90632_calc_temp_object_extended(s64 object, s64 ambient, s64 reflected, + s32 Ea, s32 Eb, s32 Fa, s32 Fb, s32 Ga, + s16 Ha, s16 Hb, u16 tmp_emi) +{ + s64 kTA, kTA0, TAdut, TAdut4, Tr4, TaTr4; + s64 temp = 25000; + s8 i; + + kTA = (Ea * 1000LL) >> 16LL; + kTA0 = (Eb * 1000LL) >> 8LL; + TAdut = div64_s64((ambient - kTA0) * 1000000LL, kTA) + 25 * 1000000LL; + Tr4 = mlx90632_calc_ta4(reflected, 10); + TAdut4 = mlx90632_calc_ta4(TAdut, 10000LL); + TaTr4 = Tr4 - div64_s64(Tr4 - TAdut4, tmp_emi) * 1000; + + /* Iterations of calculation as described in datasheet */ + for (i = 0; i < 5; ++i) { + temp = mlx90632_calc_temp_object_iteration(temp, object, TAdut, TaTr4, + Fa / 2, Fb, Ga, Ha, Hb, + tmp_emi); + } + + return temp; +} + static int mlx90632_calc_object_dsp105(struct mlx90632_data *data, int *val) { s32 ret; @@ -470,6 +663,26 @@ static int mlx90632_calc_object_dsp105(struct mlx90632_data *data, int *val) if (ret < 0) return ret; + if (object_new_raw > MLX90632_EXTENDED_LIMIT && + data->mtyp == MLX90632_MTYP_EXTENDED) { + ret = mlx90632_read_all_channel_extended(data, &object_new_raw, + &ambient_new_raw, &ambient_old_raw); + if (ret < 0) + return ret; + + /* Use extended mode calculations */ + ambient = mlx90632_preprocess_temp_amb(ambient_new_raw, + ambient_old_raw, Gb); + object = mlx90632_preprocess_temp_obj_extended(object_new_raw, + ambient_new_raw, + ambient_old_raw, Ka); + *val = mlx90632_calc_temp_object_extended(object, ambient, + data->object_ambient_temperature, + Ea, Eb, Fa, Fb, Ga, + Ha, Hb, data->emissivity); + return 0; + } + ambient = mlx90632_preprocess_temp_amb(ambient_new_raw, ambient_old_raw, Gb); object = mlx90632_preprocess_temp_obj(object_new_raw, @@ -548,7 +761,9 @@ static int mlx90632_read_raw(struct iio_dev *indio_dev, *val2 = data->emissivity * 1000; } return IIO_VAL_INT_PLUS_MICRO; - + case IIO_CHAN_INFO_CALIBAMBIENT: + *val = data->object_ambient_temperature; + return IIO_VAL_INT; default: return -EINVAL; } @@ -568,6 +783,9 @@ static int mlx90632_write_raw(struct iio_dev *indio_dev, return -EINVAL; data->emissivity = val * 1000 + val2 / 1000; return 0; + case IIO_CHAN_INFO_CALIBAMBIENT: + data->object_ambient_temperature = val; + return 0; default: return -EINVAL; } @@ -585,7 +803,7 @@ static const struct iio_chan_spec mlx90632_channels[] = { .modified = 1, .channel2 = IIO_MOD_TEMP_OBJECT, .info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) | - BIT(IIO_CHAN_INFO_CALIBEMISSIVITY), + BIT(IIO_CHAN_INFO_CALIBEMISSIVITY) | BIT(IIO_CHAN_INFO_CALIBAMBIENT), }, }; @@ -643,6 +861,7 @@ static int mlx90632_probe(struct i2c_client *client, i2c_set_clientdata(client, indio_dev); mlx90632->client = client; mlx90632->regmap = regmap; + mlx90632->mtyp = MLX90632_MTYP_MEDICAL; mutex_init(&mlx90632->lock); indio_dev->name = id->name; @@ -662,15 +881,20 @@ static int mlx90632_probe(struct i2c_client *client, dev_err(&client->dev, "read of version failed: %d\n", ret); return ret; } + read = read & MLX90632_ID_MASK; if (read == MLX90632_ID_MEDICAL) { dev_dbg(&client->dev, "Detected Medical EEPROM calibration %x\n", read); } else if (read == MLX90632_ID_CONSUMER) { dev_dbg(&client->dev, "Detected Consumer EEPROM calibration %x\n", read); + } else if (read == MLX90632_ID_EXTENDED) { + dev_dbg(&client->dev, + "Detected Extended range EEPROM calibration %x\n", read); + mlx90632->mtyp = MLX90632_MTYP_EXTENDED; } else if ((read & MLX90632_DSP_MASK) == MLX90632_DSP_VERSION) { dev_dbg(&client->dev, - "Detected Unknown EEPROM calibration %x\n", read); + "Detected Unknown EEPROM calibration %x\n", read); } else { dev_err(&client->dev, "Wrong DSP version %x (expected %x)\n", @@ -679,6 +903,7 @@ static int mlx90632_probe(struct i2c_client *client, } mlx90632->emissivity = 1000; + mlx90632->object_ambient_temperature = 25000; /* 25 degrees milliCelsius */ pm_runtime_disable(&client->dev); ret = pm_runtime_set_active(&client->dev); diff --git a/drivers/iio/temperature/tmp007.c b/drivers/iio/temperature/tmp007.c index f90fe9e5617b..ad2b35c65548 100644 --- a/drivers/iio/temperature/tmp007.c +++ b/drivers/iio/temperature/tmp007.c @@ -20,7 +20,7 @@ #include <linux/module.h> #include <linux/pm.h> #include <linux/bitops.h> -#include <linux/of.h> +#include <linux/mod_devicetable.h> #include <linux/irq.h> #include <linux/interrupt.h> @@ -578,7 +578,7 @@ MODULE_DEVICE_TABLE(i2c, tmp007_id); static struct i2c_driver tmp007_driver = { .driver = { .name = "tmp007", - .of_match_table = of_match_ptr(tmp007_of_match), + .of_match_table = tmp007_of_match, .pm = &tmp007_pm_ops, }, .probe = tmp007_probe, diff --git a/drivers/iio/temperature/tsys01.c b/drivers/iio/temperature/tsys01.c index 2c631a1ca33b..bbfbad9a8767 100644 --- a/drivers/iio/temperature/tsys01.c +++ b/drivers/iio/temperature/tsys01.c @@ -13,6 +13,7 @@ #include <linux/device.h> #include <linux/mutex.h> #include <linux/module.h> +#include <linux/mod_devicetable.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/stat.h> @@ -222,7 +223,7 @@ static struct i2c_driver tsys01_driver = { .id_table = tsys01_id, .driver = { .name = "tsys01", - .of_match_table = of_match_ptr(tsys01_of_match), + .of_match_table = tsys01_of_match, }, }; |