net: gemini: Use devm_platform_get_and_ioremap_resource()

Use devm_platform_get_and_ioremap_resource() to simplify
code.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/cortina/gemini.c

@@ -2356,8 +2356,6 @@ static int gemini_ethernet_port_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct gemini_ethernet *geth;
 	struct net_device *netdev;
-	struct resource *gmacres;
-	struct resource *dmares;
 	struct device *parent;
 	unsigned int id;
 	int irq;
@@ -2390,24 +2388,18 @@ static int gemini_ethernet_port_probe(struct platform_device *pdev)
 	port->msg_enable = netif_msg_init(debug, DEFAULT_MSG_ENABLE);
 
 	/* DMA memory */
-	dmares = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!dmares) {
-		dev_err(dev, "no DMA resource\n");
-		return -ENODEV;
-	}
-	port->dma_base = devm_ioremap_resource(dev, dmares);
-	if (IS_ERR(port->dma_base))
+	port->dma_base = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
+	if (IS_ERR(port->dma_base)) {
+		dev_err(dev, "get DMA address failed\n");
 		return PTR_ERR(port->dma_base);
+	}
 
 	/* GMAC config memory */
-	gmacres = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (!gmacres) {
-		dev_err(dev, "no GMAC resource\n");
-		return -ENODEV;
-	}
-	port->gmac_base = devm_ioremap_resource(dev, gmacres);
-	if (IS_ERR(port->gmac_base))
+	port->gmac_base = devm_platform_get_and_ioremap_resource(pdev, 1, NULL);
+	if (IS_ERR(port->gmac_base)) {
+		dev_err(dev, "get GMAC address failed\n");
 		return PTR_ERR(port->gmac_base);
+	}
 
 	/* Interrupt */
 	irq = platform_get_irq(pdev, 0);
@@ -2502,10 +2494,6 @@ static int gemini_ethernet_port_probe(struct platform_device *pdev)
 	if (ret)
 		goto unprepare;
 
-	netdev_info(netdev,
-		    "irq %d, DMA @ 0x%pap, GMAC @ 0x%pap\n",
-		    port->irq, &dmares->start,
-		    &gmacres->start);
 	return 0;
 
 unprepare:
@@ -2544,17 +2532,13 @@ static int gemini_ethernet_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct gemini_ethernet *geth;
 	unsigned int retry = 5;
-	struct resource *res;
 	u32 val;
 
 	/* Global registers */
 	geth = devm_kzalloc(dev, sizeof(*geth), GFP_KERNEL);
 	if (!geth)
 		return -ENOMEM;
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENODEV;
-	geth->base = devm_ioremap_resource(dev, res);
+	geth->base = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
 	if (IS_ERR(geth->base))
 		return PTR_ERR(geth->base);
 	geth->dev = dev;