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-rw-r--r--kernel/irq/manage.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index b61784ee78b..3ed7aee8486 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -133,6 +133,27 @@ void enable_irq(unsigned int irq)
}
EXPORT_SYMBOL(enable_irq);
+/**
+ * set_irq_wake - control irq power management wakeup
+ * @irq: interrupt to control
+ * @on: enable/disable power management wakeup
+ *
+ * Enable/disable power management wakeup mode
+ */
+int set_irq_wake(unsigned int irq, unsigned int on)
+{
+ struct irq_desc *desc = irq_desc + irq;
+ unsigned long flags;
+ int ret = -ENXIO;
+
+ spin_lock_irqsave(&desc->lock, flags);
+ if (desc->chip->set_wake)
+ ret = desc->chip->set_wake(irq, on);
+ spin_unlock_irqrestore(&desc->lock, flags);
+ return ret;
+}
+EXPORT_SYMBOL(set_irq_wake);
+
/*
* Internal function that tells the architecture code whether a
* particular irq has been exclusively allocated or is available