aboutsummaryrefslogtreecommitdiff
path: root/drivers/hwmon/adm1031.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/hwmon/adm1031.c')
-rw-r--r--drivers/hwmon/adm1031.c153
1 files changed, 103 insertions, 50 deletions
diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c
index e6291dafa4ca..97e2cfb0bc93 100644
--- a/drivers/hwmon/adm1031.c
+++ b/drivers/hwmon/adm1031.c
@@ -155,7 +155,8 @@ adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value)
#define TEMP_OFFSET_FROM_REG(val) TEMP_FROM_REG((val) < 0 ? \
(val) | 0x70 : (val))
-#define FAN_FROM_REG(reg, div) ((reg) ? (11250 * 60) / ((reg) * (div)) : 0)
+#define FAN_FROM_REG(reg, div) ((reg) ? \
+ (11250 * 60) / ((reg) * (div)) : 0)
static int FAN_TO_REG(int reg, int div)
{
@@ -174,8 +175,8 @@ static int FAN_TO_REG(int reg, int div)
(((reg) & 0x1F) | (((val) << 5) & 0xe0))
#define AUTO_TEMP_MIN_TO_REG(val, reg) \
- ((((val)/500) & 0xf8)|((reg) & 0x7))
-#define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1<< ((reg)&0x7)))
+ ((((val) / 500) & 0xf8) | ((reg) & 0x7))
+#define AUTO_TEMP_RANGE_FROM_REG(reg) (5000 * (1 << ((reg) & 0x7)))
#define AUTO_TEMP_MIN_FROM_REG(reg) (1000 * ((((reg) >> 3) & 0x1f) << 2))
#define AUTO_TEMP_MIN_FROM_REG_DEG(reg) ((((reg) >> 3) & 0x1f) << 2)
@@ -202,7 +203,7 @@ static int AUTO_TEMP_MAX_TO_REG(int val, int reg, int pwm)
/* FAN auto control */
#define GET_FAN_AUTO_BITFIELD(data, idx) \
- (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx%2]
+ (*(data)->chan_select_table)[FAN_CHAN_FROM_REG((data)->conf1)][idx % 2]
/* The tables below contains the possible values for the auto fan
* control bitfields. the index in the table is the register value.
@@ -230,7 +231,7 @@ static const auto_chan_table_t auto_channel_select_table_adm1030 = {
*/
static int
get_fan_auto_nearest(struct adm1031_data *data,
- int chan, u8 val, u8 reg, u8 * new_reg)
+ int chan, u8 val, u8 reg, u8 *new_reg)
{
int i;
int first_match = -1, exact_match = -1;
@@ -258,13 +259,13 @@ get_fan_auto_nearest(struct adm1031_data *data,
}
}
- if (exact_match >= 0) {
+ if (exact_match >= 0)
*new_reg = exact_match;
- } else if (first_match >= 0) {
+ else if (first_match >= 0)
*new_reg = first_match;
- } else {
+ else
return -EINVAL;
- }
+
return 0;
}
@@ -283,23 +284,28 @@ set_fan_auto_channel(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val = simple_strtol(buf, NULL, 10);
+ long val;
u8 reg;
int ret;
u8 old_fan_mode;
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
+
old_fan_mode = data->conf1;
mutex_lock(&data->update_lock);
- if ((ret = get_fan_auto_nearest(data, nr, val, data->conf1, &reg))) {
+ ret = get_fan_auto_nearest(data, nr, val, data->conf1, &reg);
+ if (ret) {
mutex_unlock(&data->update_lock);
return ret;
}
data->conf1 = FAN_CHAN_TO_REG(reg, data->conf1);
if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) ^
(old_fan_mode & ADM1031_CONF1_AUTO_MODE)) {
- if (data->conf1 & ADM1031_CONF1_AUTO_MODE){
+ if (data->conf1 & ADM1031_CONF1_AUTO_MODE) {
/* Switch to Auto Fan Mode
* Save PWM registers
* Set PWM registers to 33% Both */
@@ -350,7 +356,12 @@ set_auto_temp_min(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
mutex_lock(&data->update_lock);
data->auto_temp[nr] = AUTO_TEMP_MIN_TO_REG(val, data->auto_temp[nr]);
@@ -374,10 +385,16 @@ set_auto_temp_max(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
mutex_lock(&data->update_lock);
- data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr], data->pwm[nr]);
+ data->temp_max[nr] = AUTO_TEMP_MAX_TO_REG(val, data->auto_temp[nr],
+ data->pwm[nr]);
adm1031_write_value(client, ADM1031_REG_AUTO_TEMP(nr),
data->temp_max[nr]);
mutex_unlock(&data->update_lock);
@@ -410,8 +427,12 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val = simple_strtol(buf, NULL, 10);
- int reg;
+ long val;
+ int ret, reg;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
mutex_lock(&data->update_lock);
if ((data->conf1 & ADM1031_CONF1_AUTO_MODE) &&
@@ -449,9 +470,13 @@ static int trust_fan_readings(struct adm1031_data *data, int chan)
if (data->conf1 & ADM1031_CONF1_AUTO_MODE) {
switch (data->conf1 & 0x60) {
- case 0x00: /* remote temp1 controls fan1 remote temp2 controls fan2 */
+ case 0x00:
+ /*
+ * remote temp1 controls fan1,
+ * remote temp2 controls fan2
+ */
res = data->temp[chan+1] >=
- AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]);
+ AUTO_TEMP_MIN_FROM_REG_DEG(data->auto_temp[chan+1]);
break;
case 0x20: /* remote temp1 controls both fans */
res =
@@ -515,7 +540,12 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val = simple_strtol(buf, NULL, 10);
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
mutex_lock(&data->update_lock);
if (val) {
@@ -534,10 +564,15 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val = simple_strtol(buf, NULL, 10);
+ long val;
u8 tmp;
int old_div;
int new_min;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
tmp = val == 8 ? 0xc0 :
val == 4 ? 0x80 :
@@ -631,9 +666,13 @@ static ssize_t set_temp_offset(struct device *dev,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val;
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
- val = simple_strtol(buf, NULL, 10);
val = SENSORS_LIMIT(val, -15000, 15000);
mutex_lock(&data->update_lock);
data->temp_offset[nr] = TEMP_OFFSET_TO_REG(val);
@@ -648,9 +687,13 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val;
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
- val = simple_strtol(buf, NULL, 10);
val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
mutex_lock(&data->update_lock);
data->temp_min[nr] = TEMP_TO_REG(val);
@@ -665,9 +708,13 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val;
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
- val = simple_strtol(buf, NULL, 10);
val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
mutex_lock(&data->update_lock);
data->temp_max[nr] = TEMP_TO_REG(val);
@@ -682,9 +729,13 @@ static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct adm1031_data *data = i2c_get_clientdata(client);
int nr = to_sensor_dev_attr(attr)->index;
- int val;
+ long val;
+ int ret;
+
+ ret = kstrtol(buf, 10, &val);
+ if (ret)
+ return ret;
- val = simple_strtol(buf, NULL, 10);
val = SENSORS_LIMIT(val, -55000, nr == 0 ? 127750 : 127875);
mutex_lock(&data->update_lock);
data->temp_crit[nr] = TEMP_TO_REG(val);
@@ -711,7 +762,8 @@ temp_reg(2);
temp_reg(3);
/* Alarms */
-static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct adm1031_data *data = adm1031_update_device(dev);
return sprintf(buf, "%d\n", data->alarm);
@@ -919,12 +971,13 @@ static int adm1031_probe(struct i2c_client *client,
adm1031_init_client(client);
/* Register sysfs hooks */
- if ((err = sysfs_create_group(&client->dev.kobj, &adm1031_group)))
+ err = sysfs_create_group(&client->dev.kobj, &adm1031_group);
+ if (err)
goto exit_free;
if (data->chip_type == adm1031) {
- if ((err = sysfs_create_group(&client->dev.kobj,
- &adm1031_group_opt)))
+ err = sysfs_create_group(&client->dev.kobj, &adm1031_group_opt);
+ if (err)
goto exit_remove;
}
@@ -970,14 +1023,13 @@ static void adm1031_init_client(struct i2c_client *client)
}
/* Initialize the ADM1031 chip (enables fan speed reading ) */
read_val = adm1031_read_value(client, ADM1031_REG_CONF2);
- if ((read_val | mask) != read_val) {
- adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask);
- }
+ if ((read_val | mask) != read_val)
+ adm1031_write_value(client, ADM1031_REG_CONF2, read_val | mask);
read_val = adm1031_read_value(client, ADM1031_REG_CONF1);
if ((read_val | ADM1031_CONF1_MONITOR_ENABLE) != read_val) {
- adm1031_write_value(client, ADM1031_REG_CONF1, read_val |
- ADM1031_CONF1_MONITOR_ENABLE);
+ adm1031_write_value(client, ADM1031_REG_CONF1,
+ read_val | ADM1031_CONF1_MONITOR_ENABLE);
}
/* Read the chip's update rate */
@@ -1024,8 +1076,7 @@ static struct adm1031_data *adm1031_update_device(struct device *dev)
/* oldh is actually newer */
if (newh != oldh)
dev_warn(&client->dev,
- "Remote temperature may be "
- "wrong.\n");
+ "Remote temperature may be wrong.\n");
#endif
}
data->temp[chan] = newh;
@@ -1052,22 +1103,24 @@ static struct adm1031_data *adm1031_update_device(struct device *dev)
data->conf2 = adm1031_read_value(client, ADM1031_REG_CONF2);
data->alarm = adm1031_read_value(client, ADM1031_REG_STATUS(0))
- | (adm1031_read_value(client, ADM1031_REG_STATUS(1))
- << 8);
- if (data->chip_type == adm1030) {
+ | (adm1031_read_value(client, ADM1031_REG_STATUS(1)) << 8);
+ if (data->chip_type == adm1030)
data->alarm &= 0xc0ff;
- }
- for (chan=0; chan<(data->chip_type == adm1030 ? 1 : 2); chan++) {
+ for (chan = 0; chan < (data->chip_type == adm1030 ? 1 : 2);
+ chan++) {
data->fan_div[chan] =
- adm1031_read_value(client, ADM1031_REG_FAN_DIV(chan));
+ adm1031_read_value(client,
+ ADM1031_REG_FAN_DIV(chan));
data->fan_min[chan] =
- adm1031_read_value(client, ADM1031_REG_FAN_MIN(chan));
+ adm1031_read_value(client,
+ ADM1031_REG_FAN_MIN(chan));
data->fan[chan] =
- adm1031_read_value(client, ADM1031_REG_FAN_SPEED(chan));
+ adm1031_read_value(client,
+ ADM1031_REG_FAN_SPEED(chan));
data->pwm[chan] =
- 0xf & (adm1031_read_value(client, ADM1031_REG_PWM) >>
- (4*chan));
+ (adm1031_read_value(client,
+ ADM1031_REG_PWM) >> (4 * chan)) & 0x0f;
}
data->last_updated = jiffies;
data->valid = 1;
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 14:24:52 +0000