mmDCCG_AUDIO_DTO_SOURCE
tmp = RREG32(mmDCCG_AUDIO_DTO_SOURCE);
WREG32(mmDCCG_AUDIO_DTO_SOURCE, tmp);
tmp = RREG32(mmDCCG_AUDIO_DTO_SOURCE);
WREG32(mmDCCG_AUDIO_DTO_SOURCE, tmp);
WREG32(mmDCCG_AUDIO_DTO_SOURCE, (amdgpu_crtc->crtc_id << DCCG_AUDIO_DTO_SOURCE__DCCG_AUDIO_DTO0_SOURCE_SEL__SHIFT));