1 files changed, 16 insertions, 0 deletions

diff --git a/arch/arm/mach-sa1100/irq.c b/arch/arm/mach-sa1100/irq.c
index c131a5201b5b..b3a56024182e 100644
--- a/arch/arm/mach-sa1100/irq.c
+++ b/arch/arm/mach-sa1100/irq.c
@@ -199,10 +199,26 @@ static void sa1100_unmask_irq(unsigned int irq)
         ICMR |= (1 << irq);
 }
 
+/*
+ * Apart form GPIOs, only the RTC alarm can be a wakeup event.
+ */
+static int sa1100_set_wake(unsigned int irq, unsigned int on)
+{
+        if (irq == IRQ_RTCAlrm) {
+                if (on)
+                        PWER |= PWER_RTC;
+                else
+                        PWER &= ~PWER_RTC;
+                return 0;
+        }
+        return -EINVAL;
+}
+
 static struct irqchip sa1100_normal_chip = {
         .ack            = sa1100_mask_irq,
         .mask           = sa1100_mask_irq,
         .unmask         = sa1100_unmask_irq,
+        .set_wake       = sa1100_set_wake,
 };
 
 static struct resource irq_resource = {