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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

8
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
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@@ -7260,7 +7260,11 @@ create_validate_stream_for_sink(struct amdgpu_dm_connector *aconnector,
break;
}
dc_result = dc_validate_stream(adev->dm.dc, stream);
if (stream->signal == SIGNAL_TYPE_DISPLAY_PORT_MST)
dc_result = dm_dp_mst_is_port_support_mode(aconnector, stream);
if (dc_result == DC_OK)
dc_result = dc_validate_stream(adev->dm.dc, stream);
if (dc_result != DC_OK) {
DRM_DEBUG_KMS("Mode %dx%d (clk %d) failed DC validation with error %d (%s)\n",
@@ -7560,7 +7564,7 @@ static void dm_encoder_helper_disable(struct drm_encoder *encoder)
}
static int convert_dc_color_depth_into_bpc (enum dc_color_depth display_color_depth)
int convert_dc_color_depth_into_bpc(enum dc_color_depth display_color_depth)
{
switch (display_color_depth) {
case COLOR_DEPTH_666: