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iio: pressure: bmp280: Fix regmap for BMP280 device

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Up to now, the BMP280 device is using the regmap of the BME280 which
has registers that exist only in the BME280 device.

Fixes: 14e8015f85 ("iio: pressure: bmp280: split driver in logical parts")
Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
Link: https://patch.msgid.link/20240711211558.106327-2-vassilisamir@gmail.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Vasileios Amoiridis 2024-07-11 23:15:49 +02:00 committed by Jonathan Cameron
parent 316c957fee
commit b9065b0250
3 changed files with 44 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/iio/pressure/bmp280-core.c
View File

@ -1186,7 +1186,7 @@ const struct bmp280_chip_info bme280_chip_info = {
.id_reg = BMP280_REG_ID,
.chip_id = bme280_chip_ids,
.num_chip_id = ARRAY_SIZE(bme280_chip_ids),
.regmap_config = &bmp280_regmap_config,
.regmap_config = &bme280_regmap_config,
.start_up_time = 2000,
.channels = bme280_channels,
.num_channels = ARRAY_SIZE(bme280_channels),

45
drivers/iio/pressure/bmp280-regmap.c
View File

@ -41,7 +41,7 @@ const struct regmap_config bmp180_regmap_config = {
};
EXPORT_SYMBOL_NS(bmp180_regmap_config, IIO_BMP280);
static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
static bool bme280_is_writeable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case BMP280_REG_CONFIG:
@ -54,7 +54,35 @@ static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
}
}
static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case BMP280_REG_CONFIG:
case BMP280_REG_CTRL_MEAS:
case BMP280_REG_RESET:
return true;
default:
return false;
}
}
static bool bmp280_is_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case BMP280_REG_TEMP_XLSB:
case BMP280_REG_TEMP_LSB:
case BMP280_REG_TEMP_MSB:
case BMP280_REG_PRESS_XLSB:
case BMP280_REG_PRESS_LSB:
case BMP280_REG_PRESS_MSB:
case BMP280_REG_STATUS:
return true;
default:
return false;
}
}
static bool bme280_is_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case BME280_REG_HUMIDITY_LSB:
@ -71,7 +99,6 @@ static bool bmp280_is_volatile_reg(struct device *dev, unsigned int reg)
return false;
}
}
static bool bmp380_is_writeable_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
@ -167,7 +194,7 @@ const struct regmap_config bmp280_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = BME280_REG_HUMIDITY_LSB,
.max_register = BMP280_REG_TEMP_XLSB,
.cache_type = REGCACHE_RBTREE,
.writeable_reg = bmp280_is_writeable_reg,
@ -175,6 +202,18 @@ const struct regmap_config bmp280_regmap_config = {
};
EXPORT_SYMBOL_NS(bmp280_regmap_config, IIO_BMP280);
const struct regmap_config bme280_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.max_register = BME280_REG_HUMIDITY_LSB,
.cache_type = REGCACHE_RBTREE,
.writeable_reg = bme280_is_writeable_reg,
.volatile_reg = bme280_is_volatile_reg,
};
EXPORT_SYMBOL_NS(bme280_regmap_config, IIO_BMP280);
const struct regmap_config bmp380_regmap_config = {
.reg_bits = 8,
.val_bits = 8,

1
drivers/iio/pressure/bmp280.h
View File

@ -490,6 +490,7 @@ extern const struct bmp280_chip_info bmp580_chip_info;
/* Regmap configurations */
extern const struct regmap_config bmp180_regmap_config;
extern const struct regmap_config bmp280_regmap_config;
extern const struct regmap_config bme280_regmap_config;
extern const struct regmap_config bmp380_regmap_config;
extern const struct regmap_config bmp580_regmap_config;