rzt2h_validate_pin
if (!rzt2h_gpio_irq_map[offset] || rzt2h_validate_pin(pctrl, offset))
ret = rzt2h_validate_pin(pctrl, pins[i]);
ret = rzt2h_validate_pin(pctrl, pin);
ret = rzt2h_validate_pin(pctrl, pin);
ret = rzt2h_validate_pin(pctrl, offset);
ret = rzt2h_validate_pin(pctrl, offset);