net: ethernet: bgmac: Use devm_platform_ioremap_resource_byname

Use the devm_platform_ioremap_resource_byname() helper instead of
calling platform_get_resource_byname() and devm_ioremap_resource()
separately.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/broadcom/bgmac-platform.c

@@ -172,7 +172,6 @@ static int bgmac_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct bgmac *bgmac;
-	struct resource *regs;
 	int ret;
 
 	bgmac = bgmac_alloc(&pdev->dev);
@@ -206,21 +205,15 @@ static int bgmac_probe(struct platform_device *pdev)
 	if (IS_ERR(bgmac->plat.base))
 		return PTR_ERR(bgmac->plat.base);
 
-	regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "idm_base");
-	if (regs) {
-		bgmac->plat.idm_base = devm_ioremap_resource(&pdev->dev, regs);
-		if (IS_ERR(bgmac->plat.idm_base))
-			return PTR_ERR(bgmac->plat.idm_base);
+	bgmac->plat.idm_base = devm_platform_ioremap_resource_byname(pdev, "idm_base");
+	if (IS_ERR(bgmac->plat.idm_base))
+		return PTR_ERR(bgmac->plat.idm_base);
+	else
 		bgmac->feature_flags &= ~BGMAC_FEAT_IDM_MASK;
-	}
 
-	regs = platform_get_resource_byname(pdev, IORESOURCE_MEM, "nicpm_base");
-	if (regs) {
-		bgmac->plat.nicpm_base = devm_ioremap_resource(&pdev->dev,
-							       regs);
-		if (IS_ERR(bgmac->plat.nicpm_base))
-			return PTR_ERR(bgmac->plat.nicpm_base);
-	}
+	bgmac->plat.nicpm_base = devm_platform_ioremap_resource_byname(pdev, "nicpm_base");
+	if (IS_ERR(bgmac->plat.nicpm_base))
+		return PTR_ERR(bgmac->plat.nicpm_base);
 
 	bgmac->read = platform_bgmac_read;
 	bgmac->write = platform_bgmac_write;