diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index 1b0e3dd..63d7b58 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -300,11 +300,7 @@
 	if (!mem)
 		return -EINVAL;
 
-	if (!devm_request_mem_region(&pdev->dev, mem->start, resource_size(mem),
-				     "dw_wdt"))
-		return -ENOMEM;
-
-	dw_wdt.regs = devm_ioremap(&pdev->dev, mem->start, resource_size(mem));
+	dw_wdt.regs = devm_request_and_ioremap(&pdev->dev, mem);
 	if (!dw_wdt.regs)
 		return -ENOMEM;