qv_ic_enable
qv_ic_enable(ua, QV_IC, QV_SYNC_VEC, QV_IC_ENA);
qv_ic_enable(ua, QV_IC, QV_SYNC_VEC, QV_IC_DIS);
void qv_ic_enable(struct uba_attach_args *, bus_size_t, int, int);
qv_ic_enable(ua, QVA_QVIC, QV_DUART_VEC, QV_IC_ENA);