diff --git a/drivers/rtc/rtc-88pm80x.c b/drivers/rtc/rtc-88pm80x.c
index 6367984..7c3a264 100644
--- a/drivers/rtc/rtc-88pm80x.c
+++ b/drivers/rtc/rtc-88pm80x.c
@@ -256,7 +256,7 @@ static int __devinit pm80x_rtc_probe(struct platform_device *pdev)
 	struct pm80x_rtc_info *info;
 	struct rtc_time tm;
 	unsigned long ticks = 0;
-	int ret;
+	int irq, ret;
 
 	pdata = pdev->dev.platform_data;
 	if (pdata == NULL)
@@ -266,12 +266,13 @@ static int __devinit pm80x_rtc_probe(struct platform_device *pdev)
 	    devm_kzalloc(&pdev->dev, sizeof(struct pm80x_rtc_info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
-	info->irq = platform_get_irq(pdev, 0);
-	if (info->irq < 0) {
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
 		dev_err(&pdev->dev, "No IRQ resource!\n");
 		ret = -EINVAL;
 		goto out;
 	}
+	info->irq = irq + chip->irq_base;
 
 	info->chip = chip;
 	info->map = chip->regmap;