[PATCH v3 0/6] drm/amd/display: Pass proper parent for DM backlight device v3

[Hans de Goede]

Hi All,

Here is version 3 of my patch series to pass the proper parent device
to backlight_device_register().

Changes in v3:
- Make amdgpu_dm_register_backlight_device() check bl_idx != 1 before
  registering the backlight since amdgpu_dm_connector_late_register()
  now calls it for _all_ connectors.

Changes in v2:
- Patches 1 - 5 are new, reworking the code a bit to allow delaying
  the registering, so this has turned from a single patch into
  a 6 patch set.
- Patch 6 now delays the registering of the backlight_dev till
  after the drm_connector is registered by doing it from
  drm_connector_funcs.late_register.

Note this no longer is RFC since this has been successfully
tested on 3 laptops which hit the affected code path.

Version 3 has also been tested on my personal AMD Ryzen 7 5700G APU
desktop machine and now no longer tries to register a backlight
device for each connector there.

Regards,

Hans


Hans de Goede (6):
  drm/amd/display/amdgpu_dm: Fix backlight_device_register() error
    handling
  drm/amd/display/amdgpu_dm: Refactor register_backlight_device()
  drm/amd/display/amdgpu_dm: Add a bl_idx to amdgpu_dm_connector
  drm/amd/display/amdgpu_dm: Move most backlight setup into
    setup_backlight_device()
  drm/amd/display/amdgpu_dm: Make amdgpu_dm_register_backlight_device()
    take an amdgpu_dm_connector
  drm/amd/display/amdgpu_dm: Pass proper parent for backlight device
    registration v3

 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 100 ++++++++----------
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h |   1 +
 2 files changed, 46 insertions(+), 55 deletions(-)

-- 
2.39.1