diff --git a/drivers/gpio/gpio-rockchip.c b/drivers/gpio/gpio-rockchip.c
index 9478a58f1caa..8647d006d103 100644
--- a/drivers/gpio/gpio-rockchip.c
+++ b/drivers/gpio/gpio-rockchip.c
@@ -647,15 +647,10 @@ static void rockchip_clk_put(void *data)
 
 static int rockchip_get_bank_data(struct rockchip_pin_bank *bank)
 {
-	struct resource res;
+	struct platform_device *pdev = to_platform_device(bank->dev);
 	int id = 0, ret;
 
-	if (of_address_to_resource(bank->of_node, 0, &res)) {
-		dev_err(bank->dev, "cannot find IO resource for bank\n");
-		return -ENOENT;
-	}
-
-	bank->reg_base = devm_ioremap_resource(bank->dev, &res);
+	bank->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(bank->reg_base))
 		return PTR_ERR(bank->reg_base);