Refactors inv_mpu_aux_read() and inv_mpu_aux_write() to extract the common
I2C transfer sequence into inv_mpu_i2c_master_xfer(), which now handles
starting and stopping the I2C master, waiting for completion, disabling
SLV0, and checking for NACK errors.
This refactoring removes code duplication and improves maintainability.
No functional changes are intended.
Signed-off-by: Isabella Caselli <bellacaselli20@gmail.com>
Co-developed-by: Rodrigo Michelassi <rodrigo.michelassi@usp.br>
Signed-off-by: Rodrigo Michelassi <rodrigo.michelassi@usp.br>
Acked-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://patch.msgid.link/20250507184539.54658-1-bellacaselli20@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Some boards fail in magnetometer probe if level shifter flag is not set,
definition was found in the vendor Linux kernel v3.0.
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@tdk.com>
Link: https://lore.kernel.org/r/20230927173245.2151083-3-andreas@kemnade.info
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Add helper functions to use the i2c auxiliary bus with the MPU i2c
master block.
Support only register based chip, reading and 1 byte writing. These
will be useful for initializing magnetometers inside MPU9x50 chips.
Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
