diff options
Diffstat (limited to 'kernel/irq/manage.c')
| -rw-r--r-- | kernel/irq/manage.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 4c69326aa773..d06a396c7ce3 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -616,6 +616,22 @@ int __irq_set_trigger(struct irq_desc *desc, unsigned int irq, return ret; } +#ifdef CONFIG_HARDIRQS_SW_RESEND +int irq_set_parent(int irq, int parent_irq) +{ + unsigned long flags; + struct irq_desc *desc = irq_get_desc_lock(irq, &flags, 0); + + if (!desc) + return -EINVAL; + + desc->parent_irq = parent_irq; + + irq_put_desc_unlock(desc, flags); + return 0; +} +#endif + /* * Default primary interrupt handler for threaded interrupts. Is * assigned as primary handler when request_threaded_irq is called |