drm/amd/display: Fix direct scanout alpha on some DRM_FORMATs

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[Why]

DM was declaring it's own list of has_alpha DRM formats to check against
for enabling alpha blending, when the format->has_alpha already does
that for us.

The self-declared list missed some has_alpha formats, causing
direct-scanout planes with such formats to appear opaque.

[How]

Drop the self-declared list, instead use the format->has_alpha field
directly.

Signed-off-by: Leo Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 9ecdac91ed)
Cc: stable@vger.kernel.org

...

This commit is contained in:

Leo Li 2026-09-29 17:32:32 -04:00 • committed by Alex Deucher

parent 5da1129613

commit 7744262f5d

1 changed files with 1 additions and 19 deletions

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

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