ASoC: codecs: msm8916-wcd: use devm_platform_ioremap_resource() to simplify code

Use devm_platform_ioremap_resource() to simplify the code a bit.
This is detected by coccinelle.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20190727150738.54764-17-yuehaibing@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/msm8916-wcd-digital.c

@@ -1143,7 +1143,6 @@ static int msm8916_wcd_digital_probe(struct platform_device *pdev)
 	struct msm8916_wcd_digital_priv *priv;
 	struct device *dev = &pdev->dev;
 	void __iomem *base;
-	struct resource *mem_res;
 	struct regmap *digital_map;
 	int ret;
 
@@ -1151,8 +1150,7 @@ static int msm8916_wcd_digital_probe(struct platform_device *pdev)
 	if (!priv)
 		return -ENOMEM;
 
-	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = devm_ioremap_resource(&pdev->dev, mem_res);
+	base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(base))
 		return PTR_ERR(base);