diff --git a/drivers/rtc/rtc-cadence.c b/drivers/rtc/rtc-cadence.c
index 592aae2..595d5d2 100644
--- a/drivers/rtc/rtc-cadence.c
+++ b/drivers/rtc/rtc-cadence.c
@@ -255,7 +255,6 @@
 static int cdns_rtc_probe(struct platform_device *pdev)
 {
 	struct cdns_rtc *crtc;
-	struct resource *res;
 	int ret;
 	unsigned long ref_clk_freq;
 
@@ -263,8 +262,7 @@
 	if (!crtc)
 		return -ENOMEM;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	crtc->regs = devm_ioremap_resource(&pdev->dev, res);
+	crtc->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(crtc->regs))
 		return PTR_ERR(crtc->regs);