ig4iic_set_config
error = ig4iic_set_config(sc, IG4_HAS_ADDREGS(sc->version), false);
if (ig4iic_set_config(sc, IG4_HAS_ADDREGS(sc->version), true))
static int ig4iic_set_config(ig4iic_softc_t *sc, bool reset, bool force_restore);
ig4iic_set_config(sc, true, false);