EDP_PSR2_STATUS
psr_status = EDP_PSR2_STATUS(display, cpu_transcoder);
intel_dsb_poll(dsb, EDP_PSR2_STATUS(display, cpu_transcoder),
EDP_PSR2_STATUS(display, cpu_transcoder),
reg = EDP_PSR2_STATUS(display, cpu_transcoder);
EDP_PSR2_STATUS(display, cpu_transcoder));