This is a note to let you know that I've just added the patch titled
drm/amd/display: Fix incorrect DSC recompute trigger
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amd-display-fix-incorrect-dsc-recompute-trigger.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 13ffe0d08973db083440582b0886462bb6b16b2e
Author: Fangzhi Zuo <Jerry.Zuo@xxxxxxx>
Date: Wed Sep 4 16:56:45 2024 -0400
drm/amd/display: Fix incorrect DSC recompute trigger
[ Upstream commit 4641169a8c95d9efc35d2d3c55c3948f3b375ff9 ]
A stream without dsc_aux should not be eliminated from
the dsc determination. Whether it needs a dsc recompute depends on
whether its mode has changed or not. Eliminating such a no-dsc stream
from the dsc determination policy will end up with inconsistencies
in the new dc_state when compared to the current dc_state,
triggering a dsc recompute that should not have happened.
Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@xxxxxxx>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@xxxxxxx>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
Tested-by: Daniel Wheeler <daniel.wheeler@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
index b4bbd3be35a6..385a5a75fdf8 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -1236,7 +1236,7 @@ static bool is_dsc_need_re_compute(
continue;
aconnector = (struct amdgpu_dm_connector *) stream->dm_stream_context;
- if (!aconnector || !aconnector->dsc_aux)
+ if (!aconnector)
continue;
/*
