Revert "drm/amd/display: Only restore backlight after amdgpu_dm_init or dm_resume"

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commit 9858ea4c29 upstream.

This fix regressed the original issue that commit 7875afafba
("drm/amd/display: Fix brightness level not retained over reboot") solved,
so revert it until a different approach to solve the regression that
it caused with AMD_PRIVATE_COLOR is found.

Fixes: a490c8d77d ("drm/amd/display: Only restore backlight after amdgpu_dm_init or dm_resume")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4620
Cc: stable@vger.kernel.org
Signed-off-by: Matthew Schwartz <matthew.schwartz@linux.dev>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Matthew Schwartz 2025-10-09 14:19:00 +02:00 • committed by Greg Kroah-Hartman

parent 79dd6f032e

commit 4ab9ed34cb

2 changed files with 4 additions and 15 deletions

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12

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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7

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h

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