drm/amd/display: Set emulated sink type to HDMI accordingly.

Alex Hung · alexdeucher · commit fc0479ac5dd9 · 2023-10-26T18:59:47.000-04:00
[WHY &amp; HOW]
Virtual sink is not audio-capable and this causes kms_hdmi_inject's
inject-audio to fail. Set it to HDMI according to EDID.

Reviewed-by: Chao-kai Wang &lt;stylon.wang@amd.com&gt;
Acked-by: Roman Li &lt;roman.li@amd.com&gt;
Signed-off-by: Alex Hung &lt;alex.hung@amd.com&gt;
Tested-by: Daniel Wheeler &lt;daniel.wheeler@amd.com&gt;
Signed-off-by: Alex Deucher &lt;alexander.deucher@amd.com&gt;
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -6513,6 +6513,9 @@ static void create_eml_sink(struct amdgpu_dm_connector *aconnector)
 		return;
 	}
 
+	if (drm_detect_hdmi_monitor(edid))
+		init_params.sink_signal = SIGNAL_TYPE_HDMI_TYPE_A;
+
 	aconnector->edid = edid;
 
 	aconnector->dc_em_sink = dc_link_add_remote_sink(

Original file line number	Diff line number	Diff line change
`@@ -6513,6 +6513,9 @@ static void create_eml_sink(struct amdgpu_dm_connector *aconnector)`
`6513`	`6513`	`return;`
`6514`	`6514`	`}`
`6515`	`6515`
	`6516`	`+ if (drm_detect_hdmi_monitor(edid))`
	`6517`	`+ init_params.sink_signal = SIGNAL_TYPE_HDMI_TYPE_A;`
	`6518`	`+`
`6516`	`6519`	`aconnector->edid = edid;`
`6517`	`6520`
`6518`	`6521`	`aconnector->dc_em_sink = dc_link_add_remote_sink(`