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drm/amd/display: add mst port output bw check

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[Why]
when connect one 4k@144hz dp to dsc mst hub, 4k@144hz mode is in valid
mode list. but some mst hub port output bandwidth does not support
4k@144hz.

[How]
add mst port output bandwidth checks, include full_pbn, branch max
throughput mps.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Jerry Zuo <Jerry.Zuo@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: hersen wu <hersenxs.wu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
hersen wu
2022-05-29 12:12:32 -04:00
committed by Alex Deucher
parent ec457f8378
commit f04d275d94
4 changed files with 48 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.h
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@@ -583,7 +583,6 @@ struct amdgpu_dm_connector {
struct drm_dp_mst_port *port;
struct amdgpu_dm_connector *mst_port;
struct drm_dp_aux *dsc_aux;
/* TODO see if we can merge with ddc_bus or make a dm_connector */
struct amdgpu_i2c_adapter *i2c;
@@ -747,4 +746,6 @@ int dm_atomic_get_state(struct drm_atomic_state *state,
struct amdgpu_dm_connector *
amdgpu_dm_find_first_crtc_matching_connector(struct drm_atomic_state *state,
struct drm_crtc *crtc);
int convert_dc_color_depth_into_bpc(enum dc_color_depth display_color_depth);
#endif /* __AMDGPU_DM_H__ */