+The helper supports using threaded interrupts as well. Then you just request
+the interrupt separately and go with it:
+
+.. code-block:: c
+
+ /* Typical state container with dynamic irqchip */
+ struct my_gpio {
+ struct gpio_chip gc;
+ struct irq_chip irq;
+ };
+
+ int irq; /* from platform etc */
+ struct my_gpio *g;
+ struct gpio_irq_chip *girq;
+
+ /* Set up the irqchip dynamically */
+ g->irq.name = "my_gpio_irq";
+ g->irq.irq_ack = my_gpio_ack_irq;
+ g->irq.irq_mask = my_gpio_mask_irq;
+ g->irq.irq_unmask = my_gpio_unmask_irq;
+ g->irq.irq_set_type = my_gpio_set_irq_type;
+
+ ret = devm_request_threaded_irq(dev, irq, NULL,
+ irq_thread_fn, IRQF_ONESHOT, "my-chip", g);
+ if (ret < 0)
+ return ret;
+
+ /* Get a pointer to the gpio_irq_chip */
+ girq = &g->gc.irq;
+ girq->chip = &g->irq;
+ /* This will let us handle the parent IRQ in the driver */
+ girq->parent_handler = NULL;
+ girq->num_parents = 0;
+ girq->parents = NULL;
+ girq->default_type = IRQ_TYPE_NONE;
+ girq->handler = handle_bad_irq;
+
+ return devm_gpiochip_add_data(dev, &g->gc, g);
+
+The helper supports using hierarchical interrupt controllers as well.