The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.19.y git checkout FETCH_HEAD git cherry-pick -x b9065b0250e1705935445ede0a18c1850afe7b75 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024100731-obedient-valium-8f42@gregkh' --subject-prefix 'PATCH 4.19.y' HEAD^..

Possible dependencies:

b9065b0250e1 ("iio: pressure: bmp280: Fix regmap for BMP280 device") b23be4cd99a6 ("iio: pressure: bmp280: Use BME prefix for BME280 specifics") 439ce8961bdd ("iio: pressure: bmp280: Improve indentation and line wrapping") 33564435c808 ("iio: pressure: bmp280: Allow multiple chips id per family of devices") a2d43f44628f ("iio: pressure: fix some word spelling errors") accb9d05df39 ("iio: pressure: bmp280: Add nvmem operations for BMP580") 597dfb2af052 ("iio: pressure: bmp280: Add support for new sensor BMP580") 42cde8808573 ("iio: pressure: Kconfig: Delete misleading I2C reference on bmp280 title") c25ea00fefa4 ("iio: pressure: bmp280: Add preinit callback") 0b0b772637cd ("iio: pressure: bmp280: Use chip_info pointers for each chip as driver data") 12491d35551d ("iio: pressure: bmp280: convert to i2c's .probe_new()") 10b40ffba2f9 ("iio: pressure: bmp280: Add more tunable config parameters for BMP380") 8d329309184d ("iio: pressure: bmp280: Add support for BMP380 sensor family") 18d1bb377023 ("iio: pressure: bmp280: reorder i2c device tables declarations") 327b5c0512c1 ("iio: pressure: bmp280: Fix alignment for DMA safety") b00e805a47a8 ("iio: pressure: bmp280: simplify driver initialization logic") 83cb40beaefa ("iio: pressure: bmp280: Simplify bmp280 calibration data reading") 2405f8cc8485 ("iio: pressure: bmp280: use FIELD_GET, FIELD_PREP and GENMASK") 5f0c359defea ("iio: pressure: bmp280: reorder local variables following reverse xmas tree") 5d5129b17f83 ("iio: pressure: bmp280: fix datasheet links")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From b9065b0250e1705935445ede0a18c1850afe7b75 Mon Sep 17 00:00:00 2001 From: Vasileios Amoiridis vassilisamir@gmail.com Date: Thu, 11 Jul 2024 23:15:49 +0200 Subject: [PATCH] iio: pressure: bmp280: Fix regmap for BMP280 device

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

Fixes: 14e8015f8569 ("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

diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c index 2fc5724196e3..cc8553177977 100644 --- a/drivers/iio/pressure/bmp280-core.c +++ b/drivers/iio/pressure/bmp280-core.c @@ -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), diff --git a/drivers/iio/pressure/bmp280-regmap.c b/drivers/iio/pressure/bmp280-regmap.c index fa52839474b1..d27d68edd906 100644 --- a/drivers/iio/pressure/bmp280-regmap.c +++ b/drivers/iio/pressure/bmp280-regmap.c @@ -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, diff --git a/drivers/iio/pressure/bmp280.h b/drivers/iio/pressure/bmp280.h index 0933e411ae2c..4b0ebce001df 100644 --- a/drivers/iio/pressure/bmp280.h +++ b/drivers/iio/pressure/bmp280.h @@ -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;