diff options
| author | Martin Blumenstingl <martin.blumenstingl@googlemail.com> | 2022-10-31 22:51:40 +0100 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2022-12-05 01:45:02 +0100 |
| commit | 78d448a3725584b7c46d3d881035943f759135fd (patch) | |
| tree | d542d3757810447287add66cbb5531e76c51a01f /drivers/hwmon/jc42.c | |
| parent | hwmon: (pmbus/ltc2978) add support for LTC7132 (diff) | |
| download | linux-78d448a3725584b7c46d3d881035943f759135fd.tar.xz linux-78d448a3725584b7c46d3d881035943f759135fd.zip | |
hwmon: (jc42) Consistently use bit and bitfield macros in the driver
Use BIT() and GENMASK() macros for defining the bitfields inside the
registers. Also use FIELD_GET() and FIELD_PREP() where appropriate. This
makes the coding style within the driver consistent. No functional
changes intended.
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/jc42.c')
| -rw-r--r-- | drivers/hwmon/jc42.c | 36 |
1 files changed, 18 insertions, 18 deletions
diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c index 6593d81cb901..8523bf974310 100644 --- a/drivers/hwmon/jc42.c +++ b/drivers/hwmon/jc42.c @@ -10,6 +10,7 @@ */ #include <linux/bitops.h> +#include <linux/bitfield.h> #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> @@ -37,20 +38,19 @@ static const unsigned short normal_i2c[] = { #define JC42_REG_SMBUS 0x22 /* NXP and Atmel, possibly others? */ /* Status bits in temperature register */ -#define JC42_ALARM_CRIT_BIT 15 -#define JC42_ALARM_MAX_BIT 14 -#define JC42_ALARM_MIN_BIT 13 +#define JC42_ALARM_CRIT BIT(15) +#define JC42_ALARM_MAX BIT(14) +#define JC42_ALARM_MIN BIT(13) /* Configuration register defines */ -#define JC42_CFG_CRIT_ONLY (1 << 2) -#define JC42_CFG_TCRIT_LOCK (1 << 6) -#define JC42_CFG_EVENT_LOCK (1 << 7) -#define JC42_CFG_SHUTDOWN (1 << 8) -#define JC42_CFG_HYST_SHIFT 9 -#define JC42_CFG_HYST_MASK (0x03 << 9) +#define JC42_CFG_CRIT_ONLY BIT(2) +#define JC42_CFG_TCRIT_LOCK BIT(6) +#define JC42_CFG_EVENT_LOCK BIT(7) +#define JC42_CFG_SHUTDOWN BIT(8) +#define JC42_CFG_HYST_MASK GENMASK(10, 9) /* Capabilities */ -#define JC42_CAP_RANGE (1 << 2) +#define JC42_CAP_RANGE BIT(2) /* Manufacturer IDs */ #define ADT_MANID 0x11d4 /* Analog Devices */ @@ -277,8 +277,8 @@ static int jc42_read(struct device *dev, enum hwmon_sensor_types type, break; temp = jc42_temp_from_reg(regval); - hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK) - >> JC42_CFG_HYST_SHIFT]; + hyst = jc42_hysteresis[FIELD_GET(JC42_CFG_HYST_MASK, + data->config)]; *val = temp - hyst; break; case hwmon_temp_crit_hyst: @@ -288,8 +288,8 @@ static int jc42_read(struct device *dev, enum hwmon_sensor_types type, break; temp = jc42_temp_from_reg(regval); - hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK) - >> JC42_CFG_HYST_SHIFT]; + hyst = jc42_hysteresis[FIELD_GET(JC42_CFG_HYST_MASK, + data->config)]; *val = temp - hyst; break; case hwmon_temp_min_alarm: @@ -297,21 +297,21 @@ static int jc42_read(struct device *dev, enum hwmon_sensor_types type, if (ret) break; - *val = (regval >> JC42_ALARM_MIN_BIT) & 1; + *val = FIELD_GET(JC42_ALARM_MIN, regval); break; case hwmon_temp_max_alarm: ret = regmap_read(data->regmap, JC42_REG_TEMP, ®val); if (ret) break; - *val = (regval >> JC42_ALARM_MAX_BIT) & 1; + *val = FIELD_GET(JC42_ALARM_MAX, regval); break; case hwmon_temp_crit_alarm: ret = regmap_read(data->regmap, JC42_REG_TEMP, ®val); if (ret) break; - *val = (regval >> JC42_ALARM_CRIT_BIT) & 1; + *val = FIELD_GET(JC42_ALARM_CRIT, regval); break; default: ret = -EOPNOTSUPP; @@ -370,7 +370,7 @@ static int jc42_write(struct device *dev, enum hwmon_sensor_types type, hyst = 3; /* 6.0 degrees C */ } data->config = (data->config & ~JC42_CFG_HYST_MASK) | - (hyst << JC42_CFG_HYST_SHIFT); + FIELD_PREP(JC42_CFG_HYST_MASK, hyst); ret = regmap_write(data->regmap, JC42_REG_CONFIG, data->config); break; |