diff options
| author | Stylon Wang <stylon.wang@amd.com> | 2020-07-28 15:10:35 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-26 10:40:53 +0200 |
| commit | 1f3cfa9338c34f4ea55acb740fe5b2e3acd3d2fb (patch) | |
| tree | b637c3c31e3e89b6bf4fd159e908e95fe5803a6e | |
| parent | 6f3bff30f1cb9cc3b36ed08c2995946368838ab5 (diff) | |
| download | linux-stable-1f3cfa9338c34f4ea55acb740fe5b2e3acd3d2fb.tar.gz linux-stable-1f3cfa9338c34f4ea55acb740fe5b2e3acd3d2fb.tar.bz2 linux-stable-1f3cfa9338c34f4ea55acb740fe5b2e3acd3d2fb.zip | |
drm/amd/display: Fix EDID parsing after resume from suspend
commit b24bdc37d03a0478189e20a50286092840f414fa upstream.
[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>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 1 |
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 6091194a3955..2c0eb7140ca0 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -1434,6 +1434,7 @@ amdgpu_dm_update_connector_after_detect(struct amdgpu_dm_connector *aconnector) 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, |