pctldesc->npins = gc->ngpio;
        pctldesc->confops = &iproc_pconf_ops;
 
-       chip->pctl = pinctrl_register(pctldesc, chip->dev, chip);
+       chip->pctl = devm_pinctrl_register(chip->dev, pctldesc, chip);
        if (IS_ERR(chip->pctl)) {
                dev_err(chip->dev, "unable to register pinctrl device\n");
                return PTR_ERR(chip->pctl);
        return 0;
 }
 
-static void iproc_gpio_unregister_pinconf(struct iproc_gpio *chip)
-{
-       pinctrl_unregister(chip->pctl);
-}
-
 static const struct of_device_id iproc_gpio_of_match[] = {
        { .compatible = "brcm,cygnus-ccm-gpio" },
        { .compatible = "brcm,cygnus-asiu-gpio" },
                                           handle_simple_irq, IRQ_TYPE_NONE);
                if (ret) {
                        dev_err(dev, "no GPIO irqchip\n");
-                       goto err_unregister_pinconf;
+                       goto err_rm_gpiochip;
                }
 
                gpiochip_set_chained_irqchip(gc, &iproc_gpio_irq_chip, irq,
 
        return 0;
 
-err_unregister_pinconf:
-       iproc_gpio_unregister_pinconf(chip);
-
 err_rm_gpiochip:
        gpiochip_remove(gc);