mbox series

[v2,0/6] ACPI: video: Fix missing acpi_video# devices on some systems

Message ID 20230404110251.42449-1-hdegoede@redhat.com
Headers show
Series ACPI: video: Fix missing acpi_video# devices on some systems | expand

Message

Hans de Goede April 4, 2023, 11:02 a.m. UTC 
Hi Rafael,

Here is my v2 of this series, changes in v2:

- Add Mario's Reviewed-by to the series
- Fix typo in commit-message for 5/6
- Drop no longer used video_detect_force_none() in 6/6

This patch series consists of 2 parts:

1. Fix missing acpi_video# devices on some systems, currently in kernels
   >= 6.1.5 and >= 6.2.0 acpi_video# backlight class devices will only
   get registered (by default) when a GPU driver asks for this by calling
   acpi_video_register_backlight(). This is causing backlight control to
   be missing on some systems.

   Patches 1-4 fix this and ideally these should be send to Linus for
   an upcoming 6.3-rc# release.

2. Now that the dust has settled a bit on the backlight refactor we can
   do some further cleanups. This is done in patches 5 + 6. Note that
   patch 5 depends on patch 2.

Regards,

Hans


Hans de Goede (6):
  ACPI: video: Add auto_detect arg to __acpi_video_get_backlight_type()
  ACPI: video: Make acpi_backlight=video work independent from GPU
    driver
  ACPI: video: Add acpi_backlight=video quirk for Apple iMac14,1 and
    iMac14,2
  ACPI: video: Add acpi_backlight=video quirk for Lenovo ThinkPad W530
  ACPI: video: Remove register_backlight_delay module option and code
  ACPI: video: Remove desktops without backlight DMI quirks

 drivers/acpi/acpi_video.c                     | 53 +++--------
 drivers/acpi/video_detect.c                   | 93 +++++++++----------
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |  4 -
 include/acpi/video.h                          | 17 +++-
 4 files changed, 71 insertions(+), 96 deletions(-)