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Commit a39438f0 authored by Harry Wentland's avatar Harry Wentland Committed by Alex Deucher
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drm/amd/display: Debug print when validate_stream fails 



It might be good to understand why validate fails.

Signed-off-by: default avatarHarry Wentland <harry.wentland@amd.com>
Reviewed-by: default avatarTony Cheng <Tony.Cheng@amd.com>
Acked-by: default avatarHarry Wentland <harry.wentland@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 25292028

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

+9 −1
Original line number Diff line number Diff line
@@ -2801,6 +2801,7 @@ int amdgpu_dm_connector_mode_valid(struct drm_connector *connector, 
	/* TODO: Unhardcode stream count */

	struct dc_stream_state *stream;

	struct amdgpu_dm_connector *aconnector = to_amdgpu_dm_connector(connector);

	enum dc_status dc_result = DC_OK;



	if ((mode->flags & DRM_MODE_FLAG_INTERLACE) ||

			(mode->flags & DRM_MODE_FLAG_DBLSCAN))
@@ -2833,8 +2834,15 @@ int amdgpu_dm_connector_mode_valid(struct drm_connector *connector, 
	stream->src.height = mode->vdisplay;

	stream->dst = stream->src;



	if (dc_validate_stream(adev->dm.dc, stream) == DC_OK)

	dc_result = dc_validate_stream(adev->dm.dc, stream);



	if (dc_result == DC_OK)

		result = MODE_OK;

	else

		DRM_DEBUG_KMS("Mode %dx%d (clk %d) failed DC validation\n",

			      mode->vdisplay,

			      mode->hdisplay,

			      mode->clock);



	dc_stream_release(stream);