From: Stylon Wang stylon.wang@amd.com
[ Upstream commit fa7041d9d2fc7401cece43f305eb5b87b7017fc4 ]
[Why] Regression was introduced where setting max bpc property has no effect on the atomic check and final commit. It has the same effect as max bpc being stuck at 8.
[How] Correctly propagate max bpc with the new connector state.
Signed-off-by: Stylon Wang stylon.wang@amd.com Reviewed-by: Nicholas Kazlauskas Nicholas.Kazlauskas@amd.com Acked-by: Rodrigo Siqueira Rodrigo.Siqueira@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
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 b7e161f2a47d4..69b1f61928eff 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -4808,7 +4808,8 @@ create_validate_stream_for_sink(struct amdgpu_dm_connector *aconnector, struct drm_connector *connector = &aconnector->base; struct amdgpu_device *adev = connector->dev->dev_private; struct dc_stream_state *stream; - int requested_bpc = connector->state ? connector->state->max_requested_bpc : 8; + const struct drm_connector_state *drm_state = dm_state ? &dm_state->base : NULL; + int requested_bpc = drm_state ? drm_state->max_requested_bpc : 8; enum dc_status dc_result = DC_OK;
do {