Fixes V2: * make get_mount_matrix() functions more readable (use temp variable) (suggested by Jonathan and Andy) * add these readability improvements also for ak8975 and mpu6050 (suggested by Jonathan and Andy) * squash bindings documentation into single commit for better discussion (suggested by Linus) * FOR DISCUSSION: add some more clarifications to the bindings documentation and an attempt to define the magnetometer orientation * add "iio: Allow to read mount matrix from ACPI" to the beginning of the series to make it compile (suggested by Andy) * replace of_iio_read_mount_matrix() by iio_read_mount_matrix() (required by "iio: Allow to read mount matrix from ACPI") * drop patch to convert bma180 to devm (potential race) (suggested by Jonathan) PATCH V1 2019-02-20 15:01:02: This patch series adds the mount-matrix to several iio sensor drivers used in handheld devices. The mount-matrix translates the quite arbitrary orientation of the sensor on some printed circuit board to user-tangible orientation in handheld devices that relates to typical screen orientation. There was a bindings documentation by Linus Walleij but the patch did not make it into mainline. Therefore I resend it here. Next I have added some clarifications (at least I hope it clarifies) in a second patch. Finally, the patch set implements the hooks for the mount matrix in several iio drivers: bmc150, bma180, bmg160, itg3200, hmc5843. This includes also one patch for the bma180 to convert it to devm API. We use them in different variants of the omap3-gta04 so a separate patch set will provide device tree additions for them. Andy Shevchenko (1): iio: Allow to read mount matrix from ACPI H. Nikolaus Schaller (8): iio: accel: bmc150: add mount matrix support iio: accel: bma180: add mount matrix support iio: gyro: bmg160: add mount matrix support iio: gyro: itg3200: add mount matrix support iio: magnetometer: bmc150: add mount matrix support iio: magnetometer: hmc5843: add mount matrix support iio: mpu6050: improve code readability iio: ak8975: improve code readability Linus Walleij (1): iio: document bindings for mounting matrices .../devicetree/bindings/iio/mount-matrix.txt | 204 ++++++++++++++++++ drivers/iio/accel/bma180.c | 18 +- drivers/iio/accel/bmc150-accel-core.c | 21 ++ drivers/iio/accel/kxsd9.c | 4 +- drivers/iio/gyro/bmg160_core.c | 21 ++ drivers/iio/gyro/itg3200_core.c | 20 ++ drivers/iio/gyro/mpu3050-core.c | 3 +- drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 10 +- drivers/iio/industrialio-core.c | 46 ++-- drivers/iio/magnetometer/ak8974.c | 5 +- drivers/iio/magnetometer/ak8975.c | 13 +- drivers/iio/magnetometer/bmc150_magn.c | 21 ++ drivers/iio/magnetometer/hmc5843.h | 1 + drivers/iio/magnetometer/hmc5843_core.c | 20 +- include/linux/iio/gyro/itg3200.h | 1 + include/linux/iio/iio.h | 4 +- 16 files changed, 361 insertions(+), 51 deletions(-) create mode 100644 Documentation/devicetree/bindings/iio/mount-matrix.txt -- 2.19.1
