diff options
| author | Mikita Lipski <mikita.lipski@amd.com> | 2018-07-26 16:27:48 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-08-27 11:09:57 -0500 |
| commit | 1b369d3c0d9364df702fc9e50dd9f471b640ddff (patch) | |
| tree | e8710c1ea664c8157dd46228eab68f5d0dcd6b48 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | 2cddc50e98193f2c4aab10d05550b5ffe7587e73 (diff) | |
| download | lwn-1b369d3c0d9364df702fc9e50dd9f471b640ddff.tar.gz lwn-1b369d3c0d9364df702fc9e50dd9f471b640ddff.zip | |
drm/amd/display: pass the right num of modes added
[why]
In case if edid is null or corrupted we need to manually add
a single failsafe mode (640x480). If zero modes returned
DRM adds a different failsafe mode that is not accepted by
DP 1.2 compliance test
[how]
Return the number of modes manually added
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Reviewed-by: Sun peng Li <Sunpeng.Li@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@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.c | 3 |
1 files changed, 2 insertions, 1 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 800f481a6995..d8261fe6a04f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -3468,7 +3468,8 @@ static int amdgpu_dm_connector_get_modes(struct drm_connector *connector) encoder = helper->best_encoder(connector); if (!edid || !drm_edid_is_valid(edid)) { - drm_add_modes_noedid(connector, 640, 480); + amdgpu_dm_connector->num_modes = + drm_add_modes_noedid(connector, 640, 480); } else { amdgpu_dm_connector_ddc_get_modes(connector, edid); amdgpu_dm_connector_add_common_modes(encoder, connector); |