6.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Fangzhi Zuo Jerry.Zuo@amd.com
commit 4437936c6b696b98f3fe1d8679a2788c41b4df77 upstream.
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 Cc: Mario Limonciello superm1@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -253,7 +253,7 @@ static bool validate_dsc_caps_on_connect 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)