scsi: ufs: ufs-exynos: Use devm_platform_ioremap_resource_byname()

Use devm_platform_ioremap_resource_byname() to simplify the code.

Link: https://lore.kernel.org/r/20200916084017.14086-1-huobean@gmail.comAcked-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufs-exynos.c

@@ -940,7 +940,6 @@ static int exynos_ufs_init(struct ufs_hba *hba)
 	struct device *dev = hba->dev;
 	struct platform_device *pdev = to_platform_device(dev);
 	struct exynos_ufs *ufs;
-	struct resource *res;
 	int ret;
 
 	ufs = devm_kzalloc(dev, sizeof(*ufs), GFP_KERNEL);
@@ -948,24 +947,21 @@ static int exynos_ufs_init(struct ufs_hba *hba)
 		return -ENOMEM;
 
 	/* exynos-specific hci */
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vs_hci");
-	ufs->reg_hci = devm_ioremap_resource(dev, res);
+	ufs->reg_hci = devm_platform_ioremap_resource_byname(pdev, "vs_hci");
 	if (IS_ERR(ufs->reg_hci)) {
 		dev_err(dev, "cannot ioremap for hci vendor register\n");
 		return PTR_ERR(ufs->reg_hci);
 	}
 
 	/* unipro */
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "unipro");
-	ufs->reg_unipro = devm_ioremap_resource(dev, res);
+	ufs->reg_unipro = devm_platform_ioremap_resource_byname(pdev, "unipro");
 	if (IS_ERR(ufs->reg_unipro)) {
 		dev_err(dev, "cannot ioremap for unipro register\n");
 		return PTR_ERR(ufs->reg_unipro);
 	}
 
 	/* ufs protector */
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ufsp");
-	ufs->reg_ufsp = devm_ioremap_resource(dev, res);
+	ufs->reg_ufsp = devm_platform_ioremap_resource_byname(pdev, "ufsp");
 	if (IS_ERR(ufs->reg_ufsp)) {
 		dev_err(dev, "cannot ioremap for ufs protector register\n");
 		return PTR_ERR(ufs->reg_ufsp);