diff --git a/drivers/pwm/pwm-rockchip.c b/drivers/pwm/pwm-rockchip.c
index 4d99d468df09..036f43912e61 100644
--- a/drivers/pwm/pwm-rockchip.c
+++ b/drivers/pwm/pwm-rockchip.c
@@ -313,7 +313,8 @@ static int rockchip_pwm_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	pc->base = devm_ioremap_resource(&pdev->dev, r);
+	pc->base = devm_ioremap(&pdev->dev, r->start,
+				resource_size(r));
 	if (IS_ERR(pc->base))
 		return PTR_ERR(pc->base);