This series of patches adds support of magnetometer inside MPU925x chips. It is using the MPU i2c master to drive the integrated magnetometer and read data into the MPU FIFO. Driving the magnetometer requires to disable access to i2c auxiliary bus. To avoid breakage in existing setups we are disabling magnetometer support if the i2c auxiliary bus is used (i2c-gate dt node defined). Changes in v2: * delete Kconfig option and check for dt i2c-gate instead * simplification by using the same scan defines than mpu6050 * simplify magnetometer support by having 1 unique module inv_mpu_magn * fixes and cleanup Changes in v3: * move documentation from header to implementation for mpu i2c aux helpers Jean-Baptiste Maneyrol (7): iio: imu: inv_mpu6050: disable i2c mux for MPU925x iio: imu: inv_mpu6050: add header include protection macro iio: imu: inv_mpu6050: add defines for supporting 9-axis chips iio: imu: inv_mpu6050: fix objects syntax in Makefile iio: imu: inv_mpu6050: helpers for using i2c master on auxiliary bus iio: imu: inv_mpu6050: add MPU925x magnetometer support iio: imu: inv_mpu6050: add fifo support for magnetometer data drivers/iio/imu/inv_mpu6050/Makefile | 7 +- drivers/iio/imu/inv_mpu6050/inv_mpu_aux.c | 203 ++++++++++ drivers/iio/imu/inv_mpu6050/inv_mpu_aux.h | 19 + drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 152 +++++++- drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c | 60 ++- drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h | 70 +++- drivers/iio/imu/inv_mpu6050/inv_mpu_magn.c | 355 ++++++++++++++++++ drivers/iio/imu/inv_mpu6050/inv_mpu_magn.h | 36 ++ drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c | 11 +- drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c | 86 ++++- 10 files changed, 968 insertions(+), 31 deletions(-) create mode 100644 drivers/iio/imu/inv_mpu6050/inv_mpu_aux.c create mode 100644 drivers/iio/imu/inv_mpu6050/inv_mpu_aux.h create mode 100644 drivers/iio/imu/inv_mpu6050/inv_mpu_magn.c create mode 100644 drivers/iio/imu/inv_mpu6050/inv_mpu_magn.h -- 2.17.1
