diff options
| author | Radu Sabau <radu.sabau@analog.com> | 2024-05-31 10:46:44 +0200 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2024-06-04 05:26:31 +0200 |
| commit | 5124d9acf3af50bcc6d0958db4fecb3c2f13f8ed (patch) | |
| tree | 7274a80af4a20ab0a17bef9d3b2f80020f36266f /drivers/hwmon | |
| parent | hwmon: (lm90) Convert to use PEC support from hwmon core (diff) | |
| download | linux-5124d9acf3af50bcc6d0958db4fecb3c2f13f8ed.tar.xz linux-5124d9acf3af50bcc6d0958db4fecb3c2f13f8ed.zip | |
hwmon: (max31827) Add PEC support
Add PEC support using the hwmon core infrastructure.
Signed-off-by: Radu Sabau <radu.sabau@analog.com>
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20240531084645.12935-2-radu.sabau@analog.com
[groeck: Adjusted subject; simplified description]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/max31827.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/hwmon/max31827.c b/drivers/hwmon/max31827.c index f8a13b30f100..4d89b6a7060b 100644 --- a/drivers/hwmon/max31827.c +++ b/drivers/hwmon/max31827.c @@ -24,6 +24,7 @@ #define MAX31827_CONFIGURATION_1SHOT_MASK BIT(0) #define MAX31827_CONFIGURATION_CNV_RATE_MASK GENMASK(3, 1) +#define MAX31827_CONFIGURATION_PEC_EN_MASK BIT(4) #define MAX31827_CONFIGURATION_TIMEOUT_MASK BIT(5) #define MAX31827_CONFIGURATION_RESOLUTION_MASK GENMASK(7, 6) #define MAX31827_CONFIGURATION_ALRM_POL_MASK BIT(8) @@ -382,7 +383,8 @@ static int max31827_write(struct device *dev, enum hwmon_sensor_types type, } case hwmon_chip: - if (attr == hwmon_chip_update_interval) { + switch (attr) { + case hwmon_chip_update_interval: if (!st->enable) return -EINVAL; @@ -410,14 +412,18 @@ static int max31827_write(struct device *dev, enum hwmon_sensor_types type, return ret; st->update_interval = val; - } - break; + return 0; + case hwmon_chip_pec: + return regmap_update_bits(st->regmap, MAX31827_CONFIGURATION_REG, + MAX31827_CONFIGURATION_PEC_EN_MASK, + val ? MAX31827_CONFIGURATION_PEC_EN_MASK : 0); + default: + return -EOPNOTSUPP; + } default: return -EOPNOTSUPP; } - - return 0; } static ssize_t temp1_resolution_show(struct device *dev, @@ -583,7 +589,7 @@ static const struct hwmon_channel_info *max31827_info[] = { HWMON_T_MIN_HYST | HWMON_T_MIN_ALARM | HWMON_T_MAX | HWMON_T_MAX_HYST | HWMON_T_MAX_ALARM), - HWMON_CHANNEL_INFO(chip, HWMON_C_UPDATE_INTERVAL), + HWMON_CHANNEL_INFO(chip, HWMON_C_UPDATE_INTERVAL | HWMON_C_PEC), NULL, }; |