diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/amc6821.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/hwmon/amc6821.c b/drivers/hwmon/amc6821.c index 8beaea9ecbab..ec94392fcb65 100644 --- a/drivers/hwmon/amc6821.c +++ b/drivers/hwmon/amc6821.c @@ -312,6 +312,12 @@ static int amc6821_pwm_read(struct device *dev, u32 attr, long *val) break; } return 0; + case hwmon_pwm_mode: + err = regmap_read(regmap, AMC6821_REG_CONF2, ®val); + if (err) + return err; + *val = !!(regval & AMC6821_CONF2_TACH_MODE); + return 0; case hwmon_pwm_auto_channels_temp: err = regmap_read(regmap, AMC6821_REG_CONF1, ®val); if (err) @@ -367,6 +373,13 @@ static int amc6821_pwm_write(struct device *dev, u32 attr, long val) return regmap_update_bits(regmap, AMC6821_REG_CONF1, AMC6821_CONF1_FDRC0 | AMC6821_CONF1_FDRC1, mode); + case hwmon_pwm_mode: + if (val < 0 || val > 1) + return -EINVAL; + return regmap_update_bits(regmap, AMC6821_REG_CONF2, + AMC6821_CONF2_TACH_MODE, + val ? AMC6821_CONF2_TACH_MODE : 0); + break; case hwmon_pwm_input: if (val < 0 || val > 255) return -EINVAL; @@ -748,6 +761,7 @@ static umode_t amc6821_is_visible(const void *data, } case hwmon_pwm: switch (attr) { + case hwmon_pwm_mode: case hwmon_pwm_enable: case hwmon_pwm_input: return 0644; @@ -774,7 +788,7 @@ static const struct hwmon_channel_info * const amc6821_info[] = { HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX | HWMON_F_TARGET | HWMON_F_PULSES | HWMON_F_FAULT), HWMON_CHANNEL_INFO(pwm, - HWMON_PWM_INPUT | HWMON_PWM_ENABLE | + HWMON_PWM_INPUT | HWMON_PWM_ENABLE | HWMON_PWM_MODE | HWMON_PWM_AUTO_CHANNELS_TEMP), NULL }; |