TRANSFER_FUNC_UNKNOWN 5548 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c 		TRANSFER_FUNC_UNKNOWN,
TRANSFER_FUNC_UNKNOWN  539 drivers/gpu/drm/amd/display/modules/freesync/freesync.c 	if (app_tf != TRANSFER_FUNC_UNKNOWN) {