SCALER6_DISPX_STATUS
val = HVS_READ(SCALER6_DISPX_STATUS(channel));
dispstat = VC4_GET_FIELD(HVS_READ(SCALER6_DISPX_STATUS(i)),
field = VC4_GET_FIELD(HVS_READ(SCALER6_DISPX_STATUS(fifo)),
WARN_ON_ONCE(VC4_GET_FIELD(HVS_READ(SCALER6_DISPX_STATUS(chan)),