From: const <const@xxxxxxxxxxxxx> 0, 3 - Temperature attributes are hidden 1 - Current mode 2 - Thermistor mode Reference: Nuvoton Hardware Monitoring IC NCT7802Y 7.2.32 Mode Selection Register Location : Index 22h Signed-off-by: Constantine Shulyupin <const@xxxxxxxxxxxxx> --- drivers/hwmon/nct7802.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++++- scripts/checkpatch.pl | 2 +- 2 files changed, 53 insertions(+), 2 deletions(-) diff --git a/drivers/hwmon/nct7802.c b/drivers/hwmon/nct7802.c index 60cf5d1..444eedf 100644 --- a/drivers/hwmon/nct7802.c +++ b/drivers/hwmon/nct7802.c @@ -49,7 +49,7 @@ static const u8 REG_VOLTAGE_LIMIT_MSB_SHIFT[2][5] = { #define REG_VOLTAGE_LOW 0x0f #define REG_FANCOUNT_LOW 0x13 #define REG_START 0x21 -#define REG_MODE 0x22 +#define REG_MODE 0x22 /* 7.2.32 Mode Selection Register */ #define REG_PECI_ENABLE 0x23 #define REG_FAN_ENABLE 0x24 #define REG_VMON_ENABLE 0x25 @@ -725,7 +725,58 @@ static struct attribute_group nct7802_fan_group = { .is_visible = nct7802_fan_is_visible, }; +static ssize_t show_temp_type(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 val; + int ret; + + ret = regmap_read(data->regmap, REG_MODE, &val); + if (ret < 0) + return ret; + + return sprintf(buf, "%u\n", val >> (2 * sattr->index) & 3); +} + +static ssize_t store_temp_type(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); + unsigned int val; + int err; + + err = kstrtouint(buf, 0, &val); + if (err < 0) + return err; + if (val > 0xF) + return -EINVAL; + + err = regmap_update_bits(data->regmap, REG_MODE, + 3 << 2 * sattr->index, val << 2 * sattr->index); + sysfs_update_group(&dev->kobj, &nct7802_temp_group); + return err ? : count; +} + +/* 7.2.32 Mode Selection Register */ +static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR, + show_temp_type, store_temp_type, 0); +static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR, + show_temp_type, store_temp_type, 1); +static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR, + show_temp_type, store_temp_type, 2); + +static struct attribute *general_attributes[] = { + &sensor_dev_attr_temp1_type.dev_attr.attr, + &sensor_dev_attr_temp2_type.dev_attr.attr, + &sensor_dev_attr_temp3_type.dev_attr.attr, + NULL +}; + static const struct attribute_group *nct7802_groups[] = { + &(const struct attribute_group){ .attrs = general_attributes }, &nct7802_temp_group, &nct7802_in_group, &nct7802_fan_group, diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 4f484ac..bf9a680 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -14,7 +14,7 @@ my $V = '0.32'; use Getopt::Long qw(:config no_auto_abbrev); -my $LINELENGTH=120; +my $LINELENGTH=80; my $quiet = 0; my $tree = 1; -- 1.9.1 _______________________________________________ lm-sensors mailing list lm-sensors@xxxxxxxxxxxxxx http://lists.lm-sensors.org/mailman/listinfo/lm-sensors