Commit 4437936c authored Aug 12, 2024 by Fangzhi Zuo Committed by Alex Deucher Aug 27, 2024

drm/amd/display: Fix Synaptics Cascaded Panamera DSC Determination



Synaptics Cascaded Panamera topology needs to unconditionally
acquire root aux for dsc decoding.

Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

parent e565b6b0

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

+1 −1

Original line number	Diff line number	Diff line
		@@ -253,7 +253,7 @@ static bool validate_dsc_caps_on_connector(struct amdgpu_dm_connector *aconnecto
		aconnector->dsc_aux = &aconnector->mst_root->dm_dp_aux.aux;

		/* synaptics cascaded MST hub case */
		if (!aconnector->dsc_aux && is_synaptics_cascaded_panamera(aconnector->dc_link, port))
		if (is_synaptics_cascaded_panamera(aconnector->dc_link, port))
		aconnector->dsc_aux = port->mgr->aux;

		if (!aconnector->dsc_aux)