[v4,0/4] Add support for AF8133J magnetometer

Message

Ondřej Jirman Feb. 22, 2024, 1:13 a.m. UTC

From: Ondrej Jirman <[e-mail]>

This series adds support for AF8133J magnetometer sensor. It's a simple
3-axis sensor with two sensitivity options and not much else to it.

This sensor is used on both Pinephone and Pinephone Pro. DT patches
adding it will come later, once this driver is merged.

Please take a look. :)

Thank you very much,
	Ondřej Jirman

v4:
- move RPM enable in probe function before iio device registration

v3:
- collect more tags
- if (ret < 0) -> (ret) where appropriate
- scoped guard move to af8133j_set_scale()
- remove pm_runtime_disable/enable guard from af8133j_power_down_action()
- pretty much just this:
  https://megous.com/dl/tmp/0001-if-ret-0-ret-where-appropriate.patch
  https://megous.com/dl/tmp/0002-scoped-guard-move-to-af8133j_set_scale.patch
  https://megous.com/dl/tmp/0003-remove-pm_runtime_disable-enable-guard-from-af8133j_.patch

v2:
- move maintainers patch to the end of series
- bindings:
  - fix compatible definition in bindings file
  - require power supplies
  - fix descriptions
- driver:
  - sort includes
  - rework RPM, the driver should now work with RPM disabled
    among other improvements
    - I've tested RPM left and right doing device bind/unbind under
      various conditions, system suspend under various conditions,
      etc.
  - use scoped_guard for mutexes
  - use devm for power down and handle power down correctly with both
    RPM enabled/disabled without tracking power state in data->powered
  - fix issue with changing scale while RPM suspended
  - various code formatting issues resolved
- as for sign-offs, I've added co-developed-by for people I know for
  sure worked on the driver, and left other tags as they were when
  I picked up the patch 2 years ago to my Linux branch

Icenowy Zheng (3):
  dt-bindings: vendor-prefix: Add prefix for Voltafield
  dt-bindings: iio: magnetometer: Add Voltafield AF8133J
  iio: magnetometer: add a driver for Voltafield AF8133J magnetometer

Ondrej Jirman (1):
  MAINTAINERS: Add an entry for AF8133J driver

 .../iio/magnetometer/voltafield,af8133j.yaml  |  60 ++
 .../devicetree/bindings/vendor-prefixes.yaml  |   2 +
 MAINTAINERS                                   |   6 +
 drivers/iio/magnetometer/Kconfig              |  12 +
 drivers/iio/magnetometer/Makefile             |   1 +
 drivers/iio/magnetometer/af8133j.c            | 524 ++++++++++++++++++
 6 files changed, 605 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/magnetometer/voltafield,af8133j.yaml
 create mode 100644 drivers/iio/magnetometer/af8133j.c