diff options
| author | Guenter Roeck <linux@roeck-us.net> | 2015-04-06 21:04:18 -0700 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2016-04-19 06:32:37 -0700 |
| commit | 0624d861983c2cb1884ea3bafc1c534c7d2348b8 (patch) | |
| tree | 1e916f25022bc2009e03fb266f5e1caf18695be0 /drivers/hwmon/it87.c | |
| parent | 2cbb9c370fe32b5de5243f7338dc6ce8747d495b (diff) | |
| download | lwn-0624d861983c2cb1884ea3bafc1c534c7d2348b8.tar.gz lwn-0624d861983c2cb1884ea3bafc1c534c7d2348b8.zip | |
hwmon: (it87) Fix pwm_temp_map for system with 6 pwm channels
Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/it87.c')
| -rw-r--r-- | drivers/hwmon/it87.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/drivers/hwmon/it87.c b/drivers/hwmon/it87.c index e3fbcf49afdb..cde53c1109ea 100644 --- a/drivers/hwmon/it87.c +++ b/drivers/hwmon/it87.c @@ -655,8 +655,7 @@ static void it87_update_pwm_ctrl(struct it87_data *data, int nr) { data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM[nr]); if (has_newer_autopwm(data)) { - data->pwm_temp_map[nr] = (data->pwm_ctrl[nr] & 0x03) + - nr < 3 ? 0 : 3; + data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03; data->pwm_duty[nr] = it87_read_value(data, IT87_REG_PWM_DUTY[nr]); } else { @@ -790,8 +789,11 @@ static struct it87_data *it87_update_device(struct device *dev) data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL); data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL); - for (i = 0; i < NUM_PWM; i++) + for (i = 0; i < NUM_PWM; i++) { + if (!(data->has_pwm & BIT(i))) + continue; it87_update_pwm_ctrl(data, i); + } data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE); data->extra = it87_read_value(data, IT87_REG_TEMP_EXTRA); @@ -1403,11 +1405,13 @@ static ssize_t show_pwm_temp_map(struct device *dev, int nr = sensor_attr->index; int map; - if (data->pwm_temp_map[nr] < 3) - map = BIT(data->pwm_temp_map[nr]); - else - map = 0; /* Should never happen */ - return sprintf(buf, "%d\n", map); + map = data->pwm_temp_map[nr]; + if (map >= 3) + map = 0; /* Should never happen */ + if (nr >= 3) /* pwm channels 3..6 map to temp4..6 */ + map += 3; + + return sprintf(buf, "%d\n", (int)BIT(map)); } static ssize_t set_pwm_temp_map(struct device *dev, @@ -1423,6 +1427,9 @@ static ssize_t set_pwm_temp_map(struct device *dev, if (kstrtol(buf, 10, &val) < 0) return -EINVAL; + if (nr >= 3) + val -= 3; + switch (val) { case BIT(0): reg = 0x00; |