pcic_delay
static void pcic_delay(struct pcic_handle *, int, const char *);
pcic_delay(h, 10, "pccwr0");
pcic_delay(h, 100, "pccwr1");
tsleep(pcic_delay, PWAIT, wmesg,
pcic_delay(h, 200 + 1, "pccen1");
pcic_delay(h, 20, "pccen2");
pcic_delay(h, 300, "pccwr1");