Introduced REG_SMARTFAN_EN_BASE, pwmX_enable, show_pwm_enable, store_pwm_enable. Signed-off-by: Constantine Shulyupin <const@xxxxxxxxxxxxx> --- drivers/hwmon/nct7802.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/drivers/hwmon/nct7802.c b/drivers/hwmon/nct7802.c index a0d9010..a53e6e1 100644 --- a/drivers/hwmon/nct7802.c +++ b/drivers/hwmon/nct7802.c @@ -53,6 +53,7 @@ static const u8 REG_VOLTAGE_LIMIT_MSB_SHIFT[2][5] = { #define REG_PECI_ENABLE 0x23 #define REG_FAN_ENABLE 0x24 #define REG_VMON_ENABLE 0x25 +#define REG_SMARTFAN_EN_BASE 0x64 #define REG_VENDOR_ID 0xfd #define REG_CHIP_ID 0xfe #define REG_VERSION_ID 0xff @@ -151,6 +152,43 @@ static ssize_t store_pwm(struct device *dev, struct device_attribute *devattr, return err ? : count; } +static ssize_t show_pwm_enable(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct nct7802_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + unsigned int reg, enabled, pwm; + int ret; + + ret = regmap_read(data->regmap, REG_SMARTFAN_EN_BASE + sattr->index / 2, + ®); + if (ret < 0) + return ret; + enabled = reg >> (sattr->index % 2 * 4) & 1; + return sprintf(buf, "%u\n", enabled + 1); +} + +static ssize_t store_pwm_enable(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct nct7802_data *data = dev_get_drvdata(dev); + struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); + u8 val; + int ret; + + ret = kstrtou8(buf, 0, &val); + if (ret < 0) + return ret; + if (val < 1 || val > 3) + return -EINVAL; + ret = regmap_update_bits(data->regmap, + REG_SMARTFAN_EN_BASE + sattr->index / 2, + 1 << sattr->index % 2 * 4, + (val - 1) << sattr->index % 2 * 4); + return ret ? : count; +} + static int nct7802_read_temp(struct nct7802_data *data, u8 reg_temp, u8 reg_temp_low, int *temp) { @@ -793,6 +831,11 @@ 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); +/* 7.2.95... Temperature to Fan mapping Relationships Register */ +static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR, show_pwm_enable, store_pwm_enable, 0); +static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR, show_pwm_enable, store_pwm_enable, 1); +static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR, show_pwm_enable, store_pwm_enable, 2); + static struct attribute *nct7802_fan_attrs[] = { &sensor_dev_attr_fan1_input.dev_attr.attr, &sensor_dev_attr_fan1_min.dev_attr.attr, @@ -832,10 +875,13 @@ static struct attribute_group nct7802_fan_group = { }; static struct attribute *nct7802_pwm_attrs[] = { + &sensor_dev_attr_pwm1_enable.dev_attr.attr, &sensor_dev_attr_pwm1_mode.dev_attr.attr, &sensor_dev_attr_pwm1.dev_attr.attr, + &sensor_dev_attr_pwm2_enable.dev_attr.attr, &sensor_dev_attr_pwm2_mode.dev_attr.attr, &sensor_dev_attr_pwm2.dev_attr.attr, + &sensor_dev_attr_pwm3_enable.dev_attr.attr, &sensor_dev_attr_pwm3_mode.dev_attr.attr, &sensor_dev_attr_pwm3.dev_attr.attr, NULL -- 1.9.1 _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors