GEMINI_LPCHC_SERIRQSTS
r = bus_space_read_4(sc->sc_iot, sc->sc_ioh, GEMINI_LPCHC_SERIRQSTS);
r = bus_space_read_4(iot, ioh, GEMINI_LPCHC_SERIRQSTS);
bus_space_write_4(iot, ioh, GEMINI_LPCHC_SERIRQSTS, r);