drm/amd/display: Set color_mgmt_changed to true on unsuspend

[ Upstream commit 2eb9dd497a698dc384c0dd3e0311d541eb2e13dd ]

Otherwise we can end up with a frame on unsuspend where color management
is not applied when userspace has not committed themselves.

Fixes re-applying color management on Steam Deck/Gamescope on S3 resume.

Signed-off-by: Joshua Ashton <joshua@froggi.es>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index b7b8a2d77da677ff79e279a68c17ce5f1f2a1f9e..b821abb56ac3b74923681b42787fd96e45265f61 100644 (file)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2772,6 +2772,7 @@ static int dm_resume(void *handle)
                        dc_stream_release(dm_new_crtc_state->stream);
                        dm_new_crtc_state->stream = NULL;
                }
+               dm_new_crtc_state->base.color_mgmt_changed = true;
        }
 
        for_each_new_plane_in_state(dm->cached_state, plane, new_plane_state, i) {