diff options
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/irq.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 2b07677a386b..aa485eb312ac 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -550,9 +550,18 @@ void __init of_irq_init(const struct of_device_id *matches) desc->irq_init_cb = match->data; desc->dev = of_node_get(np); - desc->interrupt_parent = of_irq_find_parent(np); - if (desc->interrupt_parent == np) + /* + * interrupts-extended can reference multiple parent domains. + * Arbitrarily pick the first one; assume any other parents + * are the same distance away from the root irq controller. + */ + desc->interrupt_parent = of_parse_phandle(np, "interrupts-extended", 0); + if (!desc->interrupt_parent) + desc->interrupt_parent = of_irq_find_parent(np); + if (desc->interrupt_parent == np) { + of_node_put(desc->interrupt_parent); desc->interrupt_parent = NULL; + } list_add_tail(&desc->list, &intc_desc_list); } |