diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2018-03-27 04:50:31 +0200 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2018-03-27 17:49:24 +0200 |
| commit | 415eb2a1aaa4881cf85bd86c683356fdd8094a23 (patch) | |
| tree | 23a11a51405af48d7d778c636b6364b9cef8208d /drivers/hwmon/nct6775.c | |
| parent | hwmon: (lm92) Add max6635 to lm92_id[] (diff) | |
| download | linux-415eb2a1aaa4881cf85bd86c683356fdd8094a23.tar.xz linux-415eb2a1aaa4881cf85bd86c683356fdd8094a23.zip | |
hwmon: (nct6775) Fix writing pwmX_mode
pwmX_mode is defined in the ABI as 0=DC mode, 1=pwm mode. The chip
register bit is set to 1 for DC mode. This got mixed up, and writing
1 into pwmX_mode resulted in DC mode enabled. Fix it up by using
the ABI definition throughout the driver for consistency.
Fixes: 77eb5b3703d99 ("hwmon: (nct6775) Add support for pwm, pwm_mode, ... ")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/nct6775.c')
| -rw-r--r-- | drivers/hwmon/nct6775.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index fdf24f008d75..aebce560bfaf 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -1513,7 +1513,7 @@ static void nct6775_update_pwm(struct device *dev) duty_is_dc = data->REG_PWM_MODE[i] && (nct6775_read_value(data, data->REG_PWM_MODE[i]) & data->PWM_MODE_MASK[i]); - data->pwm_mode[i] = duty_is_dc; + data->pwm_mode[i] = !duty_is_dc; fanmodecfg = nct6775_read_value(data, data->REG_FAN_MODE[i]); for (j = 0; j < ARRAY_SIZE(data->REG_PWM); j++) { @@ -2397,7 +2397,7 @@ show_pwm_mode(struct device *dev, struct device_attribute *attr, char *buf) struct nct6775_data *data = nct6775_update_device(dev); struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); - return sprintf(buf, "%d\n", !data->pwm_mode[sattr->index]); + return sprintf(buf, "%d\n", data->pwm_mode[sattr->index]); } static ssize_t @@ -2418,9 +2418,9 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr, if (val > 1) return -EINVAL; - /* Setting DC mode is not supported for all chips/channels */ + /* Setting DC mode (0) is not supported for all chips/channels */ if (data->REG_PWM_MODE[nr] == 0) { - if (val) + if (!val) return -EINVAL; return count; } @@ -2429,7 +2429,7 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr, data->pwm_mode[nr] = val; reg = nct6775_read_value(data, data->REG_PWM_MODE[nr]); reg &= ~data->PWM_MODE_MASK[nr]; - if (val) + if (!val) reg |= data->PWM_MODE_MASK[nr]; nct6775_write_value(data, data->REG_PWM_MODE[nr], reg); mutex_unlock(&data->update_lock); |