mmc: sh_mmcif: convert to devm_platform_ioremap_resource

Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: NYangtao Li <tiny.windzz@gmail.com>
Reviewed-by: NWolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: NWolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/20191215175120.3290-6-tiny.windzz@gmail.comSigned-off-by: NUlf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sh_mmcif.c

@@ -1388,7 +1388,6 @@ static int sh_mmcif_probe(struct platform_device *pdev)
 	struct sh_mmcif_host *host;
 	struct device *dev = &pdev->dev;
 	struct sh_mmcif_plat_data *pd = dev->platform_data;
-	struct resource *res;
 	void __iomem *reg;
 	const char *name;
 
@@ -1397,8 +1396,7 @@ static int sh_mmcif_probe(struct platform_device *pdev)
 	if (irq[0] < 0)
 		return -ENXIO;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	reg = devm_ioremap_resource(dev, res);
+	reg = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(reg))
 		return PTR_ERR(reg);