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hwmon: (nct7802) Add pwm mode attributes 

Introduced: show_pwm_mode, pwm1_mode, pwm2_mode, pwm2_mode

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Constantine Shulyupin 2015-07-05 01:41:31 +03:00 committed by Guenter Roeck
parent ea33597c6f
commit 876420e05a
1 changed files with 26 additions and 0 deletions
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26
drivers/hwmon/nct7802.c
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@ -102,6 +102,24 @@ static ssize_t store_temp_type(struct device *dev,
return err ? : count;
}
static ssize_t show_pwm_mode(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr);
struct nct7802_data *data = dev_get_drvdata(dev);
unsigned int regval;
int ret;
if (sattr->index > 1)
return sprintf(buf, "1\n");
ret = regmap_read(data->regmap, 0x5E, &regval);
if (ret < 0)
return ret;
return sprintf(buf, "%u\n", !(regval & (1 << sattr->index)));
}
static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
char *buf)
{
@ -765,6 +783,11 @@ 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);
/* 7.2.89 Fan Control Output Type */
static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0);
static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, show_pwm_mode, NULL, 1);
static SENSOR_DEVICE_ATTR(pwm3_mode, S_IRUGO, show_pwm_mode, NULL, 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);
@ -809,8 +832,11 @@ static struct attribute_group nct7802_fan_group = {
};
static struct attribute *nct7802_pwm_attrs[] = {
&sensor_dev_attr_pwm1_mode.dev_attr.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm2_mode.dev_attr.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_pwm3_mode.dev_attr.attr,
&sensor_dev_attr_pwm3.dev_attr.attr,
NULL
};