regulator: uniphier: use devm_platform_ioremap_resource() to simplify code

Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20191009150203.8052-1-yuehaibing@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/uniphier-regulator.c

@@ -45,7 +45,6 @@ static int uniphier_regulator_probe(struct platform_device *pdev)
 	struct regulator_config config = { };
 	struct regulator_dev *rdev;
 	struct regmap *regmap;
-	struct resource *res;
 	void __iomem *base;
 	const char *name;
 	int i, ret, nr;
@@ -58,8 +57,7 @@ static int uniphier_regulator_probe(struct platform_device *pdev)
 	if (WARN_ON(!priv->data))
 		return -EINVAL;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(dev, res);
+	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base))
 		return PTR_ERR(base);