From f4ac176e62fdc74e52ee58461fb7c8912322fc1c Mon Sep 17 00:00:00 2001 From: Jerry Zuo Date: Fri, 8 Sep 2017 11:52:45 -0400 Subject: [PATCH] drm/amd/display: Exclude MST from fake sink Needs effort to take care of the fake sink scenario in downstream daisy chain device. Exclude MST from fake sink feature for now. Signed-off-by: Jerry Zuo Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) 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 ecca2862407f..dfea04fed695 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2354,8 +2354,16 @@ create_stream_for_sink(struct amdgpu_dm_connector *aconnector, drm_connector = &aconnector->base; - if (!aconnector->dc_sink) + if (!aconnector->dc_sink) { + /* + * Exclude MST from creating fake_sink + * TODO: need to enable MST into fake_sink feature + */ + if (aconnector->mst_port) + goto stream_create_fail; + create_fake_sink(aconnector); + } stream = dc_create_stream_for_sink(aconnector->dc_sink); @@ -4376,7 +4384,8 @@ static int dm_update_crtcs_state(struct dc *dc, aconnector = amdgpu_dm_find_first_crtc_matching_connector(state, crtc); /* TODO This hack should go away */ - if (aconnector) { + if (aconnector && enable) { + // Make sure fake sink is created in plug-in scenario new_con_state = drm_atomic_get_connector_state(state, &aconnector->base); -- 2.30.2