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| author | Hans de Goede <hdegoede@redhat.com> | 2022-04-15 23:22:41 +0300 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-08-25 11:56:20 +0300 |
| commit | da11ef832972e311475fcba802398e720ed36c54 (patch) | |
| tree | 8f8b50e7da9ffae0f8843f6d40c64b8a2fbdf0e3 /drivers/gpu/drm/radeon/atombios_encoders.c | |
| parent | b1d36e73cc1c68d28f63cbd14767d0d0861147e0 (diff) | |
| download | linux-da11ef832972e311475fcba802398e720ed36c54.tar.xz | |
drm/amdgpu: Don't register backlight when another backlight should be used (v3)
Before this commit when we want userspace to use the acpi_video backlight
device we register both the GPU's native backlight device and acpi_video's
firmware acpi_video# backlight device. This relies on userspace preferring
firmware type backlight devices over native ones.
Registering 2 backlight devices for a single display really is
undesirable, don't register the GPU's native backlight device when
another backlight device should be used.
Changes in v2:
- To avoid linker errors when amdgpu is builtin and video_detect.c is in
a module, select ACPI_VIDEO and its deps if ACPI is enabled.
When ACPI is disabled, ACPI_VIDEO is also always disabled, ensuring
the stubs from acpi/video.h will be used.
Changes in v3:
- Use drm_info(drm_dev, "...") to log messages
- ACPI_VIDEO can now be enabled on non X86 too,
adjust the Kconfig changes to match this.
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/atombios_encoders.c')
0 files changed, 0 insertions, 0 deletions