Diffstat (limited to 'kernel/irq/manage.c')
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 818b2802d3e7..3089a60ea8f9 100644
@@ -731,6 +731,13 @@ static int set_irq_wake_real(unsigned int irq, unsigned int on)
* Wakeup mode lets this IRQ wake the system from sleep
* states like "suspend to RAM".
+ * Note: irq enable/disable state is completely orthogonal
+ * to the enable/disable state of irq wake. An irq can be
+ * disabled with disable_irq() and still wake the system as
+ * long as the irq has wake enabled. If this does not hold,
+ * then the underlying irq chip and the related driver need
+ * to be investigated.
int irq_set_irq_wake(unsigned int irq, unsigned int on)