diff options
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/nct7802.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/hwmon/nct7802.c b/drivers/hwmon/nct7802.c index 344cbec79802..457b0f2678a4 100644 --- a/drivers/hwmon/nct7802.c +++ b/drivers/hwmon/nct7802.c @@ -102,6 +102,36 @@ static ssize_t store_temp_type(struct device *dev, return err ? : count; } +static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, + char *buf) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct nct7802_data *data = dev_get_drvdata(dev); + unsigned int val; + int ret; + + ret = regmap_read(data->regmap, attr->index, &val); + if (ret < 0) + return ret; + + return sprintf(buf, "%d\n", val); +} + +static ssize_t store_pwm(struct device *dev, struct device_attribute *devattr, + const char *buf, size_t count) +{ + struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); + struct nct7802_data *data = dev_get_drvdata(dev); + int err; + u8 val; + + err = kstrtou8(buf, 0, &val); + if (err < 0) + return err; + + err = regmap_write(data->regmap, attr->index, val); + return err ? : count; +} static int nct7802_read_temp(struct nct7802_data *data, u8 reg_temp, u8 reg_temp_low, int *temp) @@ -735,6 +765,11 @@ static SENSOR_DEVICE_ATTR_2(fan3_alarm, S_IRUGO, show_alarm, NULL, 0x1a, 2); static SENSOR_DEVICE_ATTR_2(fan3_beep, S_IRUGO | S_IWUSR, show_beep, store_beep, 0x5b, 2); +/* 7.2.91... Fan Control Output Value */ +static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 0x60); +static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 0x61); +static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, store_pwm, 0x62); + static struct attribute *nct7802_fan_attrs[] = { &sensor_dev_attr_fan1_input.dev_attr.attr, &sensor_dev_attr_fan1_min.dev_attr.attr, @@ -773,10 +808,22 @@ static struct attribute_group nct7802_fan_group = { .is_visible = nct7802_fan_is_visible, }; +static struct attribute *nct7802_pwm_attrs[] = { + &sensor_dev_attr_pwm1.dev_attr.attr, + &sensor_dev_attr_pwm2.dev_attr.attr, + &sensor_dev_attr_pwm3.dev_attr.attr, + NULL +}; + +static struct attribute_group nct7802_pwm_group = { + .attrs = nct7802_pwm_attrs, +}; + static const struct attribute_group *nct7802_groups[] = { &nct7802_temp_group, &nct7802_in_group, &nct7802_fan_group, + &nct7802_pwm_group, NULL }; |