pcic_intr_find
irq = pcic_intr_find(sc, IST_EDGE);
sc->irq = pcic_intr_find(sc, IST_EDGE);
irq = pcic_intr_find(sc, ist);
int pcic_intr_find(struct pcic_softc *, int);
irq = pcic_intr_find(sc, IST_EDGE);