diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-24 16:55:23 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-07-24 16:55:23 -0700 |
commit | 25a0dc4be86fc0d8c7e81bb5f8be8427022bf15f (patch) | |
tree | c8d66d65eb0910a2dc8e00a96c1a4da1fc9e33d4 /drivers/iio/pressure/bmp280-regmap.c | |
parent | 9d0be76f52faff97fd9581eba70870f27061ae93 (diff) | |
parent | 6c71ee3b6157fdbde5c839405b593876d3687eb9 (diff) | |
download | linux-stable-25a0dc4be86fc0d8c7e81bb5f8be8427022bf15f.tar.gz linux-stable-25a0dc4be86fc0d8c7e81bb5f8be8427022bf15f.tar.bz2 linux-stable-25a0dc4be86fc0d8c7e81bb5f8be8427022bf15f.zip |
Merge tag 'staging-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging
Pull staging and IIO driver updates from Greg KH:
"Here is the big Staging and IIO driver update for 4.8-rc1.
We ended up adding more code than removing, again, but it's not all
that bad. Lots of cleanups all over the staging tree, and new IIO
drivers, full details in the shortlog.
All of these have been in linux-next for a while with no reported
issues"
* tag 'staging-4.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (417 commits)
drivers:iio:accel:mma8452: removed unwanted return statements
drivers:iio:accel:mma8452: added cleanup provision in case of failure.
iio: Add iio.git tree to MAINTAINERS
iio:st_pressure: clean useless static channel initializers
iio:st_pressure:lps22hb: temperature support
iio:st_pressure:lps22hb: open drain support
iio:st_pressure: temperature triggered buffering
iio:st_pressure: document sampling gains
iio:st_pressure: align storagebits on power of 2
iio:st_sensors: align on storagebits boundaries
staging:iio:lis3l02dq drop separate driver
iio: accel: st_accel: Add lis3l02dq support
iio: adc: add missing of_node references to iio_dev
iio: adc: ti-ads1015: add indio_dev->dev.of_node reference
iio: potentiometer: Fix typo in Kconfig
iio: potentiometer: mcp4531: Add device tree binding
iio: potentiometer: mcp4531: Add device tree binding documentation
iio: potentiometer: mcp4531: Add support for MCP454x, MCP456x, MCP464x and MCP466x
iio:imu:mpu6050: icm20608 initial support
iio: adc: max1363: Add device tree binding
...
Diffstat (limited to 'drivers/iio/pressure/bmp280-regmap.c')
-rw-r--r-- | drivers/iio/pressure/bmp280-regmap.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/iio/pressure/bmp280-regmap.c b/drivers/iio/pressure/bmp280-regmap.c new file mode 100644 index 000000000000..6807113ec09f --- /dev/null +++ b/drivers/iio/pressure/bmp280-regmap.c @@ -0,0 +1,84 @@ +#include <linux/device.h> +#include <linux/module.h> +#include <linux/regmap.h> + +#include "bmp280.h" + +static bool bmp180_is_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case BMP280_REG_CTRL_MEAS: + case BMP280_REG_RESET: + return true; + default: + return false; + }; +} + +static bool bmp180_is_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case BMP180_REG_OUT_XLSB: + case BMP180_REG_OUT_LSB: + case BMP180_REG_OUT_MSB: + case BMP280_REG_CTRL_MEAS: + return true; + default: + return false; + } +} + +const struct regmap_config bmp180_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = BMP180_REG_OUT_XLSB, + .cache_type = REGCACHE_RBTREE, + + .writeable_reg = bmp180_is_writeable_reg, + .volatile_reg = bmp180_is_volatile_reg, +}; +EXPORT_SYMBOL(bmp180_regmap_config); + +static bool bmp280_is_writeable_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case BMP280_REG_CONFIG: + case BMP280_REG_CTRL_HUMIDITY: + 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_HUMIDITY_LSB: + case BMP280_REG_HUMIDITY_MSB: + 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; + } +} + +const struct regmap_config bmp280_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = BMP280_REG_HUMIDITY_LSB, + .cache_type = REGCACHE_RBTREE, + + .writeable_reg = bmp280_is_writeable_reg, + .volatile_reg = bmp280_is_volatile_reg, +}; +EXPORT_SYMBOL(bmp280_regmap_config); |