This patchset adds support for the new pressure sensors BMP580 extending
the bmp280 driver.
Patch 1 introduces a minor refactor of the driver structure to change how
the device matching and driver initialization is performed. In place of
the chips ids, the driver_data now contains a pointer to its chip_info.
To perform this change, a series of declarations previously on the core
file were migrated to the shared header file, to allow access to specific
fields on the chip_info on the I2C and SPI drivers. This change is
required because BMP380 and BMP580 have the same chip_id and values would
collide using the chip_id as the driver_data value.
Patch 2 introduces new preinit callback and unifies init logic across all
supported variants.
Patch 3 made calibration callback function optional.
Patch 4 deletes misleading i2c reference on bmp280 Kconfig entry.
Patch 5 extends the bmp280 driver with the new logic to read measurements
and configure the operation parameters for the BMP580 sensors.
Patch 6 updates the devicetree binding docs with the new sensor id.
Patch 7 adds the NVMEM operations to read and program the NVM user range
contained in the non-volatile memory of the BMP580 sensors.
Changes in v4:
* Dropped redundant and excessive verbose comments.
* Change BMP580 temp IIO return type to IIO_VAL_FRACTIONAL_LOG2
* Dropped loop waiting for NVM operation completion and use
regmap_read_poll_timeout instead.
* Fix various sizeof calls on NVMEM handling codepath.
Changes in v3:
* Refactor driver structure to use chip_info structs as driver_data and
updated i2c and spi implementations device match codepaths.
* Deleted Kconfig driver title misleading i2c reference.
* Made calibration reading optional as a prerequisite patch in preparation
for the bmp580 built in compensation.
* Break command helper function in soft-reset helper function and NVM
operation helper.
* Fixed minor styling issues thorough patches.
Changes in v2:
* For patch 3, fixed missing retcodes reported by the kernel test robot.
* For patch 5, fixed logic paths that left the sensor mutex locked
reported by the kernel test robot.
Angel Iglesias (7):
iio: pressure: bmp280: Use chip_info pointers for each chip as driver
data
iio: pressure: bmp280: Add preinit callback
iio: pressure: bmp280: Make read calibration callback optional
iio: pressure: Kconfig: Delete misleading I2C reference on bmp280
title
iio: pressure: bmp280: Add support for new sensor BMP580
dt-bindings: iio: pressure: bmp085: Add BMP580 compatible string
iio: pressure: bmp280: Add nvmem operations for BMP580
.../bindings/iio/pressure/bmp085.yaml | 2 +
drivers/iio/pressure/Kconfig | 6 +-
drivers/iio/pressure/bmp280-core.c | 765 +++++++++++++-----
drivers/iio/pressure/bmp280-i2c.c | 45 +-
drivers/iio/pressure/bmp280-regmap.c | 60 ++
drivers/iio/pressure/bmp280-spi.c | 47 +-
drivers/iio/pressure/bmp280.h | 273 ++++++-
7 files changed, 953 insertions(+), 245 deletions(-)
base-commit: 91ba2700aa75859957613aedf307a04a83010cee
--
2.39.2
