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authorStylon Wang <stylon.wang@amd.com>2020-07-28 15:10:35 +0800
committerAlex Deucher <alexander.deucher@amd.com>2020-08-10 17:26:52 -0400
commit57321eae08d67c6cce0030b37812b64417569f12 (patch)
treeb0eb0a9cb49a81c5ce16c71cadbc816ae63fc025 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
parent81b437f57e35a6caa3a4304e6fff0eba0a9f3266 (diff)
downloadlinux-stericsson-57321eae08d67c6cce0030b37812b64417569f12.tar.gz
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: Stylon Wang <stylon.wang@amd.com> Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com> Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
-rw-r--r--drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c1
1 files changed, 1 insertions, 0 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 8f27bebf4633..68b88c97014b 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -2202,6 +2202,7 @@ 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,