mvsocgpp_pin_ctl
sc->sc_gpio_chipset.gp_pin_ctl = mvsocgpp_pin_ctl;
mvsocgpp_pin_ctl(NULL, pin, GPIO_PIN_INPUT | GPIO_PIN_INVIN);
mvsocgpp_pin_ctl(NULL, pin, GPIO_PIN_INPUT);
void mvsocgpp_pin_ctl(void *, int, int);