1 files changed, 31 insertions, 0 deletions

diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index 6f1e9a9804bc..2eb38520f0c8 100644
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -337,6 +337,8 @@ static int sa1100_rtc_probe(struct platform_device *pdev)
         if (IS_ERR(rtc))
                 return PTR_ERR(rtc);
 
+        device_init_wakeup(&pdev->dev, 1);
+
         platform_set_drvdata(pdev, rtc);
 
         return 0;
@@ -352,9 +354,38 @@ static int sa1100_rtc_remove(struct platform_device *pdev)
         return 0;
 }
 
+#ifdef CONFIG_PM
+static int sa1100_rtc_suspend(struct platform_device *pdev, pm_message_t state)
+{
+        if (pdev->dev.power.power_state.event != state.event) {
+                if (state.event == PM_EVENT_SUSPEND &&
+                    device_may_wakeup(&pdev->dev))
+                        enable_irq_wake(IRQ_RTCAlrm);
+
+                pdev->dev.power.power_state = state;
+        }
+        return 0;
+}
+
+static int sa1100_rtc_resume(struct platform_device *pdev)
+{
+        if (pdev->dev.power.power_state.event != PM_EVENT_ON) {
+                if (device_may_wakeup(&pdev->dev))
+                        disable_irq_wake(IRQ_RTCAlrm);
+                pdev->dev.power.power_state = PMSG_ON;
+        }
+        return 0;
+}
+#else
+#define sa1100_rtc_suspend      NULL
+#define sa1100_rtc_resume       NULL
+#endif
+
 static struct platform_driver sa1100_rtc_driver = {
         .probe          = sa1100_rtc_probe,
         .remove         = sa1100_rtc_remove,
+        .suspend        = sa1100_rtc_suspend,
+        .resume         = sa1100_rtc_resume,
         .driver         = {
                 .name           = "sa1100-rtc",
         },