From c50e072c6608d022a9f46b9990dcf297a49b900d Mon Sep 17 00:00:00 2001 From: Fangzhi Zuo Date: Tue, 11 Mar 2025 08:51:19 +0900 Subject: [PATCH] drm/amd/display: Fix incorrect DSC recompute trigger BugLink: https://bugs.launchpad.net/bugs/2101915 [ 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 Signed-off-by: Fangzhi Zuo Signed-off-by: Aurabindo Pillai Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin Signed-off-by: Koichiro Den Signed-off-by: Stefan Bader --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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 85c4aef98751..a89559df410f 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 @@ -1263,7 +1263,7 @@ 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; /*