Commit b24bdc37 authored by Stylon Wang's avatar Stylon Wang Committed by Alex Deucher
Browse files

drm/amd/display: Fix EDID parsing after resume from suspend 



[Why]
Resuming from suspend, CEA blocks from EDID are not parsed and no video
modes can support YUV420. When this happens, output bpc cannot go over
8-bit with 4K modes on HDMI.

[How]
In amdgpu_dm_update_connector_after_detect(), drm_add_edid_modes() is
called after drm_connector_update_edid_property() to fully parse EDID
and update display info.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarStylon Wang <stylon.wang@amd.com>
Reviewed-by: default avatarNicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: default avatarQingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent abba907c

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

+1 −0
Original line number Diff line number Diff line
@@ -2196,6 +2196,7 @@ void amdgpu_dm_update_connector_after_detect( 


			drm_connector_update_edid_property(connector,

							   aconnector->edid);

			drm_add_edid_modes(connector, aconnector->edid);



			if (aconnector->dc_link->aux_mode)

				drm_dp_cec_set_edid(&aconnector->dm_dp_aux.aux,