mmACP_CONTROL
val = cgs_read_register(adev->acp.cgs_device, mmACP_CONTROL);
cgs_write_register(adev->acp.cgs_device, mmACP_CONTROL, val);
val = cgs_read_register(adev->acp.cgs_device, mmACP_CONTROL);
cgs_write_register(adev->acp.cgs_device, mmACP_CONTROL, val);