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Commit 876420e0 authored by Constantine Shulyupin's avatar Constantine Shulyupin Committed by Guenter Roeck
Browse files

hwmon: (nct7802) Add pwm mode attributes 



Introduced: show_pwm_mode, pwm1_mode, pwm2_mode, pwm2_mode

Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent ea33597c

drivers/hwmon/nct7802.c

+26 −0
Original line number Diff line number Diff line
@@ -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

};