diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
index 8f06250a0389cbeffd0a6a0aaf4789ca581c342f..8754c33361e8c70744aa8e468e1579c6876be29e 100644
--- a/drivers/rtc/rtc-s5m.c
+++ b/drivers/rtc/rtc-s5m.c
@@ -717,12 +717,14 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 	info->device_type = s5m87xx->device_type;
 	info->wtsr_smpl = s5m87xx->wtsr_smpl;
 
-	info->irq = regmap_irq_get_virq(s5m87xx->irq_data, alarm_irq);
-	if (info->irq <= 0) {
-		ret = -EINVAL;
-		dev_err(&pdev->dev, "Failed to get virtual IRQ %d\n",
+	if (s5m87xx->irq_data) {
+		info->irq = regmap_irq_get_virq(s5m87xx->irq_data, alarm_irq);
+		if (info->irq <= 0) {
+			ret = -EINVAL;
+			dev_err(&pdev->dev, "Failed to get virtual IRQ %d\n",
 				alarm_irq);
-		goto err;
+			goto err;
+		}
 	}
 
 	platform_set_drvdata(pdev, info);
@@ -744,6 +746,11 @@ static int s5m_rtc_probe(struct platform_device *pdev)
 		goto err;
 	}
 
+	if (!info->irq) {
+		dev_info(&pdev->dev, "Alarm IRQ not available\n");
+		return 0;
+	}
+
 	ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
 					s5m_rtc_alarm_irq, 0, "rtc-alarm0",
 					info);
@@ -802,7 +809,7 @@ static int s5m_rtc_resume(struct device *dev)
 	struct s5m_rtc_info *info = dev_get_drvdata(dev);
 	int ret = 0;
 
-	if (device_may_wakeup(dev))
+	if (info->irq && device_may_wakeup(dev))
 		ret = disable_irq_wake(info->irq);
 
 	return ret;
@@ -813,7 +820,7 @@ static int s5m_rtc_suspend(struct device *dev)
 	struct s5m_rtc_info *info = dev_get_drvdata(dev);
 	int ret = 0;
 
-	if (device_may_wakeup(dev))
+	if (info->irq && device_may_wakeup(dev))
 		ret = enable_irq_wake(info->irq);
 
 	return ret;