diff options
| author | Angel Iglesias <ang.iglesiasg@gmail.com> | 2022-09-13 02:52:13 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-09-21 20:42:54 +0300 |
| commit | 8d329309184d5824e44c6426bf878c5f1e1156e5 (patch) | |
| tree | ad7ca0d16313a3340251a46580f8fc889bbc7bdb /drivers/iio/pressure/bmp280-regmap.c | |
| parent | 18d1bb377023cad76e01b598da3da53da9fc36b7 (diff) | |
| download | linux-8d329309184d5824e44c6426bf878c5f1e1156e5.tar.xz | |
iio: pressure: bmp280: Add support for BMP380 sensor family
Adds compatibility with the new generation of this sensor, the BMP380.
Includes basic sensor initialization to do pressure and temp
measurements and allows tuning oversampling settings for each channel.
The compensation algorithms are adapted from the device datasheet and
the repository https://github.com/BoschSensortec/BMP3-Sensor-API.
Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com>
Link: https://lore.kernel.org/r/f1da2a2f1bc5bb083f318335c23b4f3d9bb8e536.1663025017.git.ang.iglesiasg@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/pressure/bmp280-regmap.c')
| -rw-r--r-- | drivers/iio/pressure/bmp280-regmap.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/iio/pressure/bmp280-regmap.c b/drivers/iio/pressure/bmp280-regmap.c index 969698518984..c98c67970265 100644 --- a/drivers/iio/pressure/bmp280-regmap.c +++ b/drivers/iio/pressure/bmp280-regmap.c @@ -72,6 +72,49 @@ static bool bmp280_is_volatile_reg(struct device *dev, unsigned int reg) } } +static bool bmp380_is_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case BMP380_REG_CMD: + case BMP380_REG_CONFIG: + case BMP380_REG_FIFO_CONFIG_1: + case BMP380_REG_FIFO_CONFIG_2: + case BMP380_REG_FIFO_WATERMARK_LSB: + case BMP380_REG_FIFO_WATERMARK_MSB: + case BMP380_REG_POWER_CONTROL: + case BMP380_REG_INT_CONTROL: + case BMP380_REG_IF_CONFIG: + case BMP380_REG_ODR: + case BMP380_REG_OSR: + return true; + default: + return false; + } +} + +static bool bmp380_is_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case BMP380_REG_TEMP_XLSB: + case BMP380_REG_TEMP_LSB: + case BMP380_REG_TEMP_MSB: + case BMP380_REG_PRESS_XLSB: + case BMP380_REG_PRESS_LSB: + case BMP380_REG_PRESS_MSB: + case BMP380_REG_SENSOR_TIME_XLSB: + case BMP380_REG_SENSOR_TIME_LSB: + case BMP380_REG_SENSOR_TIME_MSB: + case BMP380_REG_INT_STATUS: + case BMP380_REG_FIFO_DATA: + case BMP380_REG_STATUS: + case BMP380_REG_ERROR: + case BMP380_REG_EVENT: + return true; + default: + return false; + } +} + const struct regmap_config bmp280_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -83,3 +126,15 @@ const struct regmap_config bmp280_regmap_config = { .volatile_reg = bmp280_is_volatile_reg, }; EXPORT_SYMBOL_NS(bmp280_regmap_config, IIO_BMP280); + +const struct regmap_config bmp380_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = BMP380_REG_CMD, + .cache_type = REGCACHE_RBTREE, + + .writeable_reg = bmp380_is_writeable_reg, + .volatile_reg = bmp380_is_volatile_reg, +}; +EXPORT_SYMBOL_NS(bmp380_regmap_config, IIO_BMP280); |