linux-imx

                  struct device_node *node)

{

    struct tangox_irq_chip *chip;

    struct irq_domain *dom;

    struct resource res;

    int irq;

    int err;

​

    irq = irq_of_parse_and_map(node, 0);

    if (!irq)

​

    err = of_address_to_resource(node, 0, &res);

    if (err)

​

    chip = kzalloc(sizeof(*chip), GFP_KERNEL);

    chip->ctl = res.start - baseres->start;

    chip->base = base;

​

    dom = irq_domain_add_linear(node, 64, &irq_generic_chip_ops, chip);

    if (!dom)

​

    err = irq_alloc_domain_generic_chips(dom, 32, 2, node->name,

                         handle_level_irq, 0, 0, 0);

    if (err)

​

    tangox_irq_domain_init(dom);

​

    irq_set_chained_handler_and_data(irq, tangox_irq_handler, dom);

​

    return 0;

}

​

static int __init tangox_of_irq_init(struct device_node *node,

                     struct device_node *parent)

{

    struct device_node *c;

    struct resource res;

    void __iomem *base;

​

    base = of_iomap(node, 0);

    if (!base)

​

    of_address_to_resource(node, 0, &res);

​

    for_each_child_of_node(node, c)

        tangox_irq_init(base, &res, c);

​

    return 0;

}

IRQCHIP_DECLARE(tangox_intc, "sigma,smp8642-intc", tangox_of_irq_init);