[PATCH v2 0/3] Add support for AK09918

Barnabás Czémán
2024-08-06T06:10:23Z

Add support for AK09918 which is register and scaling compatible with
AK09912.

It was tested in Xiaomi Redmi 5 Plus (vince).

magnetometer@c {
compatible = "asahi-kasei,ak09918";
reg = <0x0c>;
vdd-supply = <&pm8953_l6>;
mount-matrix = "1", "0", "0",
"0", "1", "0",
"0", "0", "1";
};

Add a fix for data reading according to datasheet [1] (9.4.3.2.)
ST2 register should be read out after read measurment data as third step.
ST2 read out is required and get correct value during measurment data
read.

[1] https://www.akm.com/content/dam/documents/products/electronic-compass/ak09918c/ak09918c-en-datasheet.pdf

Signed-off-by: Barnabás Czémán <barnabas.czeman@mainlining.org>
---
Changes in v2:
- Remove unnecessary ak09918 compatbile.
- Link to v1: https://lore.kernel.org/r/20240805-ak09918-v1-0-70837eebd7d8@mainlining.org

---
Barnabás Czémán (1):
iio: magnetometer: ak8975: Fix reading for ak099xx sensors

Danila Tikhonov (2):
dt-bindings: iio: imu: magnetometer: Add ak09118
iio: magnetometer: ak8975: Add AK09118 support

.../iio/magnetometer/asahi-kasei,ak8975.yaml | 1 +
drivers/iio/magnetometer/Kconfig | 2 +-
drivers/iio/magnetometer/ak8975.c | 65 ++++++++++++++++------
3 files changed, 51 insertions(+), 17 deletions(-)
---
base-commit: d6dbc9f56c3a70e915625b6f1887882c23dc5c91
change-id: 20240805-ak09918-4a6cfef91c32

Best regards,
--
Barnabás Czémán <barnabas.czeman@mainlining.org>