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drm/amd/display: Retrieve MST Downstream Port Status

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Determine if DFP present and the type of downstream device
based on dsc_aux

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Fangzhi Zuo
2022-01-23 13:20:07 -05:00
committed by Alex Deucher
parent 2ca97adccd
commit 09db246cee
2 changed files with 24 additions and 0 deletions
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drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
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@@ -604,6 +604,7 @@ struct amdgpu_dm_connector {
#endif
bool force_yuv420_output;
struct dsc_preferred_settings dsc_settings;
union dp_downstream_port_present mst_downstream_port_present;
/* Cached display modes */
struct drm_display_mode freesync_vid_base;