6.6-stable review patch. If anyone has any objections, please let me know.
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From: Vasileios Amoiridis vassilisamir@gmail.com
[ Upstream commit b23be4cd99a6f1f46963b87952632268174e62c1 ]
Change the rest of the defines and function names that are used specifically by the BME280 humidity sensor to BME280 as it is done for the rest of the BMP{0,1,3,5}80 sensors.
Signed-off-by: Vasileios Amoiridis vassilisamir@gmail.com Link: https://lore.kernel.org/r/20240429190046.24252-3-vassilisamir@gmail.com Signed-off-by: Jonathan Cameron Jonathan.Cameron@huawei.com Stable-dep-of: b9065b0250e1 ("iio: pressure: bmp280: Fix regmap for BMP280 device") Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iio/pressure/bmp280-core.c | 37 +++++++++++------------ drivers/iio/pressure/bmp280-regmap.c | 8 ++--- drivers/iio/pressure/bmp280.h | 45 +++++++++++++++------------- 3 files changed, 46 insertions(+), 44 deletions(-)
diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c index dac2a4e237929..8f70fd72f132a 100644 --- a/drivers/iio/pressure/bmp280-core.c +++ b/drivers/iio/pressure/bmp280-core.c @@ -234,14 +234,14 @@ static int bme280_read_calib(struct bmp280_data *data) * Humidity data is only available on BME280. */
- ret = regmap_read(data->regmap, BMP280_REG_COMP_H1, &tmp); + ret = regmap_read(data->regmap, BME280_REG_COMP_H1, &tmp); if (ret < 0) { dev_err(dev, "failed to read H1 comp value\n"); return ret; } calib->H1 = tmp;
- ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_H2, + ret = regmap_bulk_read(data->regmap, BME280_REG_COMP_H2, &data->le16, sizeof(data->le16)); if (ret < 0) { dev_err(dev, "failed to read H2 comp value\n"); @@ -249,14 +249,14 @@ static int bme280_read_calib(struct bmp280_data *data) } calib->H2 = sign_extend32(le16_to_cpu(data->le16), 15);
- ret = regmap_read(data->regmap, BMP280_REG_COMP_H3, &tmp); + ret = regmap_read(data->regmap, BME280_REG_COMP_H3, &tmp); if (ret < 0) { dev_err(dev, "failed to read H3 comp value\n"); return ret; } calib->H3 = tmp;
- ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_H4, + ret = regmap_bulk_read(data->regmap, BME280_REG_COMP_H4, &data->be16, sizeof(data->be16)); if (ret < 0) { dev_err(dev, "failed to read H4 comp value\n"); @@ -265,15 +265,15 @@ static int bme280_read_calib(struct bmp280_data *data) calib->H4 = sign_extend32(((be16_to_cpu(data->be16) >> 4) & 0xff0) | (be16_to_cpu(data->be16) & 0xf), 11);
- ret = regmap_bulk_read(data->regmap, BMP280_REG_COMP_H5, + ret = regmap_bulk_read(data->regmap, BME280_REG_COMP_H5, &data->le16, sizeof(data->le16)); if (ret < 0) { dev_err(dev, "failed to read H5 comp value\n"); return ret; } - calib->H5 = sign_extend32(FIELD_GET(BMP280_COMP_H5_MASK, le16_to_cpu(data->le16)), 11); + calib->H5 = sign_extend32(FIELD_GET(BME280_COMP_H5_MASK, le16_to_cpu(data->le16)), 11);
- ret = regmap_read(data->regmap, BMP280_REG_COMP_H6, &tmp); + ret = regmap_read(data->regmap, BME280_REG_COMP_H6, &tmp); if (ret < 0) { dev_err(dev, "failed to read H6 comp value\n"); return ret; @@ -289,7 +289,7 @@ static int bme280_read_calib(struct bmp280_data *data) * * Taken from BME280 datasheet, Section 4.2.3, "Compensation formula". */ -static u32 bmp280_compensate_humidity(struct bmp280_data *data, +static u32 bme280_compensate_humidity(struct bmp280_data *data, s32 adc_humidity) { struct bmp280_calib *calib = &data->calib.bmp280; @@ -429,7 +429,7 @@ static int bmp280_read_press(struct bmp280_data *data, return IIO_VAL_FRACTIONAL; }
-static int bmp280_read_humid(struct bmp280_data *data, int *val, int *val2) +static int bme280_read_humid(struct bmp280_data *data, int *val, int *val2) { u32 comp_humidity; s32 adc_humidity; @@ -440,7 +440,7 @@ static int bmp280_read_humid(struct bmp280_data *data, int *val, int *val2) if (ret < 0) return ret;
- ret = regmap_bulk_read(data->regmap, BMP280_REG_HUMIDITY_MSB, + ret = regmap_bulk_read(data->regmap, BME280_REG_HUMIDITY_MSB, &data->be16, sizeof(data->be16)); if (ret < 0) { dev_err(data->dev, "failed to read humidity\n"); @@ -453,7 +453,7 @@ static int bmp280_read_humid(struct bmp280_data *data, int *val, int *val2) dev_err(data->dev, "reading humidity skipped\n"); return -EIO; } - comp_humidity = bmp280_compensate_humidity(data, adc_humidity); + comp_humidity = bme280_compensate_humidity(data, adc_humidity);
*val = comp_humidity * 1000 / 1024;
@@ -537,7 +537,7 @@ static int bmp280_read_raw(struct iio_dev *indio_dev, return ret; }
-static int bmp280_write_oversampling_ratio_humid(struct bmp280_data *data, +static int bme280_write_oversampling_ratio_humid(struct bmp280_data *data, int val) { const int *avail = data->chip_info->oversampling_humid_avail; @@ -681,7 +681,7 @@ static int bmp280_write_raw(struct iio_dev *indio_dev, mutex_lock(&data->lock); switch (chan->type) { case IIO_HUMIDITYRELATIVE: - ret = bmp280_write_oversampling_ratio_humid(data, val); + ret = bme280_write_oversampling_ratio_humid(data, val); break; case IIO_PRESSURE: ret = bmp280_write_oversampling_ratio_press(data, val); @@ -831,16 +831,15 @@ EXPORT_SYMBOL_NS(bmp280_chip_info, IIO_BMP280);
static int bme280_chip_config(struct bmp280_data *data) { - u8 osrs = FIELD_PREP(BMP280_OSRS_HUMIDITY_MASK, data->oversampling_humid + 1); + u8 osrs = FIELD_PREP(BME280_OSRS_HUMIDITY_MASK, data->oversampling_humid + 1); int ret;
/* * Oversampling of humidity must be set before oversampling of * temperature/pressure is set to become effective. */ - ret = regmap_update_bits(data->regmap, BMP280_REG_CTRL_HUMIDITY, - BMP280_OSRS_HUMIDITY_MASK, osrs); - + ret = regmap_update_bits(data->regmap, BME280_REG_CTRL_HUMIDITY, + BME280_OSRS_HUMIDITY_MASK, osrs); if (ret < 0) return ret;
@@ -868,12 +867,12 @@ const struct bmp280_chip_info bme280_chip_info = {
.oversampling_humid_avail = bmp280_oversampling_avail, .num_oversampling_humid_avail = ARRAY_SIZE(bmp280_oversampling_avail), - .oversampling_humid_default = BMP280_OSRS_HUMIDITY_16X - 1, + .oversampling_humid_default = BME280_OSRS_HUMIDITY_16X - 1,
.chip_config = bme280_chip_config, .read_temp = bmp280_read_temp, .read_press = bmp280_read_press, - .read_humid = bmp280_read_humid, + .read_humid = bme280_read_humid, .read_calib = bme280_read_calib, }; EXPORT_SYMBOL_NS(bme280_chip_info, IIO_BMP280); diff --git a/drivers/iio/pressure/bmp280-regmap.c b/drivers/iio/pressure/bmp280-regmap.c index 3ee56720428c5..fa52839474b18 100644 --- a/drivers/iio/pressure/bmp280-regmap.c +++ b/drivers/iio/pressure/bmp280-regmap.c @@ -45,7 +45,7 @@ static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg) { switch (reg) { case BMP280_REG_CONFIG: - case BMP280_REG_CTRL_HUMIDITY: + case BME280_REG_CTRL_HUMIDITY: case BMP280_REG_CTRL_MEAS: case BMP280_REG_RESET: return true; @@ -57,8 +57,8 @@ static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg) static bool bmp280_is_volatile_reg(struct device *dev, unsigned int reg) { switch (reg) { - case BMP280_REG_HUMIDITY_LSB: - case BMP280_REG_HUMIDITY_MSB: + case BME280_REG_HUMIDITY_LSB: + case BME280_REG_HUMIDITY_MSB: case BMP280_REG_TEMP_XLSB: case BMP280_REG_TEMP_LSB: case BMP280_REG_TEMP_MSB: @@ -167,7 +167,7 @@ const struct regmap_config bmp280_regmap_config = { .reg_bits = 8, .val_bits = 8,
- .max_register = BMP280_REG_HUMIDITY_LSB, + .max_register = BME280_REG_HUMIDITY_LSB, .cache_type = REGCACHE_RBTREE,
.writeable_reg = bmp280_is_writeable_reg, diff --git a/drivers/iio/pressure/bmp280.h b/drivers/iio/pressure/bmp280.h index a44ea33221635..1a6903a917add 100644 --- a/drivers/iio/pressure/bmp280.h +++ b/drivers/iio/pressure/bmp280.h @@ -192,8 +192,6 @@ #define BMP380_PRESS_SKIPPED 0x800000
/* BMP280 specific registers */ -#define BMP280_REG_HUMIDITY_LSB 0xFE -#define BMP280_REG_HUMIDITY_MSB 0xFD #define BMP280_REG_TEMP_XLSB 0xFC #define BMP280_REG_TEMP_LSB 0xFB #define BMP280_REG_TEMP_MSB 0xFA @@ -207,15 +205,6 @@ #define BMP280_REG_CONFIG 0xF5 #define BMP280_REG_CTRL_MEAS 0xF4 #define BMP280_REG_STATUS 0xF3 -#define BMP280_REG_CTRL_HUMIDITY 0xF2 - -/* Due to non linear mapping, and data sizes we can't do a bulk read */ -#define BMP280_REG_COMP_H1 0xA1 -#define BMP280_REG_COMP_H2 0xE1 -#define BMP280_REG_COMP_H3 0xE3 -#define BMP280_REG_COMP_H4 0xE4 -#define BMP280_REG_COMP_H5 0xE5 -#define BMP280_REG_COMP_H6 0xE7
#define BMP280_REG_COMP_TEMP_START 0x88 #define BMP280_COMP_TEMP_REG_COUNT 6 @@ -223,8 +212,6 @@ #define BMP280_REG_COMP_PRESS_START 0x8E #define BMP280_COMP_PRESS_REG_COUNT 18
-#define BMP280_COMP_H5_MASK GENMASK(15, 4) - #define BMP280_CONTIGUOUS_CALIB_REGS (BMP280_COMP_TEMP_REG_COUNT + \ BMP280_COMP_PRESS_REG_COUNT)
@@ -235,14 +222,6 @@ #define BMP280_FILTER_8X 3 #define BMP280_FILTER_16X 4
-#define BMP280_OSRS_HUMIDITY_MASK GENMASK(2, 0) -#define BMP280_OSRS_HUMIDITY_SKIP 0 -#define BMP280_OSRS_HUMIDITY_1X 1 -#define BMP280_OSRS_HUMIDITY_2X 2 -#define BMP280_OSRS_HUMIDITY_4X 3 -#define BMP280_OSRS_HUMIDITY_8X 4 -#define BMP280_OSRS_HUMIDITY_16X 5 - #define BMP280_OSRS_TEMP_MASK GENMASK(7, 5) #define BMP280_OSRS_TEMP_SKIP 0 #define BMP280_OSRS_TEMP_1X 1 @@ -264,6 +243,30 @@ #define BMP280_MODE_FORCED 1 #define BMP280_MODE_NORMAL 3
+/* BME280 specific registers */ +#define BME280_REG_HUMIDITY_LSB 0xFE +#define BME280_REG_HUMIDITY_MSB 0xFD + +#define BME280_REG_CTRL_HUMIDITY 0xF2 + +/* Due to non linear mapping, and data sizes we can't do a bulk read */ +#define BME280_REG_COMP_H1 0xA1 +#define BME280_REG_COMP_H2 0xE1 +#define BME280_REG_COMP_H3 0xE3 +#define BME280_REG_COMP_H4 0xE4 +#define BME280_REG_COMP_H5 0xE5 +#define BME280_REG_COMP_H6 0xE7 + +#define BME280_COMP_H5_MASK GENMASK(15, 4) + +#define BME280_OSRS_HUMIDITY_MASK GENMASK(2, 0) +#define BME280_OSRS_HUMIDITY_SKIP 0 +#define BME280_OSRS_HUMIDITY_1X 1 +#define BME280_OSRS_HUMIDITY_2X 2 +#define BME280_OSRS_HUMIDITY_4X 3 +#define BME280_OSRS_HUMIDITY_8X 4 +#define BME280_OSRS_HUMIDITY_16X 5 + /* BMP180 specific registers */ #define BMP180_REG_OUT_XLSB 0xF8 #define BMP180_REG_OUT_LSB 0xF7