update_writeback  426 drivers/gpu/drm/amd/display/dc/core/dc_stream.c 			dc->hwss.update_writeback(dc, stream_status, wb_info, dc->current_state);
update_writeback  322 drivers/gpu/drm/amd/display/dc/inc/hw_sequencer.h 	void (*update_writeback)(struct dc *dc,