mmc: sdhci-spear: convert to devm_platform_ioremap_resource

Use devm_platform_ioremap_resource() to simplify code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Link: https://lore.kernel.org/r/20191215175120.3290-5-tiny.windzz@gmail.comSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-spear.c

@@ -43,7 +43,6 @@ static const struct sdhci_ops sdhci_pltfm_ops = {
 static int sdhci_probe(struct platform_device *pdev)
 {
 	struct sdhci_host *host;
-	struct resource *iomem;
 	struct spear_sdhci *sdhci;
 	struct device *dev;
 	int ret;
@@ -56,8 +55,7 @@ static int sdhci_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	host->ioaddr = devm_ioremap_resource(&pdev->dev, iomem);
+	host->ioaddr = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(host->ioaddr)) {
 		ret = PTR_ERR(host->ioaddr);
 		dev_dbg(&pdev->dev, "unable to map iomem: %d\n", ret);