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drm/amd/display: Avoid updating surface with the same surface under MPO

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[Why & How]
Although it's dummy updates of surface update for committing stream
updates, we should not have dummy_updates[j].surface all indicating
to the same surface under multiple surfaces case. Otherwise,
copy_surface_update_to_plane() in update_planes_and_stream_state()
will update to the same surface only.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wayne Lin
2026-01-23 14:47:01 +08:00
committed by Alex Deucher
parent 64c94cd9be
commit 1a38ded4bc
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -10974,7 +10974,7 @@ static void amdgpu_dm_atomic_commit_tail(struct drm_atomic_state *state)
continue;
}
for (j = 0; j < status->plane_count; j++)
dummy_updates[j].surface = status->plane_states[0];
dummy_updates[j].surface = status->plane_states[j];
sort(dummy_updates, status->plane_count,
sizeof(*dummy_updates), dm_plane_layer_index_cmp, NULL);