+ /* We need to have a mux as well */
+ if (!info->irqmux_base) {
+ dev_err(dev, "no irqmux for %pOF bank\n", np);
+ goto skip_irq;
+ }
+
+ girq = &bank->gpio_chip.irq;
+ girq->chip = &st_gpio_irqchip;
+ girq->parent_handler = st_gpio_irq_handler;
+ girq->num_parents = 1;
+ girq->parents = devm_kcalloc(dev, 1, sizeof(*girq->parents),
+ GFP_KERNEL);
+ if (!girq->parents)
+ return -ENOMEM;
+ girq->parents[0] = gpio_irq;
+ girq->default_type = IRQ_TYPE_NONE;
+ girq->handler = handle_simple_irq;
+ }
+
+skip_irq:
+ err = gpiochip_add_data(&bank->gpio_chip, bank);
+ if (err) {
+ dev_err(dev, "Failed to add gpiochip(%d)!\n", bank_num);
+ return err;