mmHDMI_ACR_48_1
tmp = RREG32(mmHDMI_ACR_48_1 + dig->afmt->offset);
WREG32(mmHDMI_ACR_48_1 + dig->afmt->offset, tmp);
tmp = RREG32(mmHDMI_ACR_48_1 + dig->afmt->offset);
WREG32(mmHDMI_ACR_48_1 + dig->afmt->offset, tmp);
WREG32(mmHDMI_ACR_48_1 + offset, acr.n_48khz);