Merge branch 'sh_eth-simplify-TSU-initialization'

Sergei Shtylyov says:

====================
sh_eth: simplify TSU initialization

Here's a set of 2 patches against DaveM's 'net-next.git' repo. With those,
I'm somewhat simplifying the TSU init code in the driver probe() method...
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/renesas/sh_eth.c

@@ -3125,7 +3125,7 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	const struct platform_device_id *id = platform_get_device_id(pdev);
 	struct sh_eth_private *mdp;
 	struct net_device *ndev;
-	int ret, devno;
+	int ret;
 
 	/* get base addr */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -3137,10 +3137,6 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	pm_runtime_enable(&pdev->dev);
 	pm_runtime_get_sync(&pdev->dev);
 
-	devno = pdev->id;
-	if (devno < 0)
-		devno = 0;
-
 	ret = platform_get_irq(pdev, 0);
 	if (ret < 0)
 		goto out_release;
@@ -3222,8 +3218,8 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 		eth_hw_addr_random(ndev);
 	}
 
-	/* ioremap the TSU registers */
 	if (mdp->cd->tsu) {
+		int port = pdev->id < 0 ? 0 : pdev->id % 2;
 		struct resource *rtsu;
 
 		rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1);
@@ -3235,31 +3231,30 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 		/* We can only request the  TSU region  for the first port
 		 * of the two  sharing this TSU for the probe to succeed...
 		 */
-		if (devno % 2 == 0 &&
+		if (port == 0 &&
 		    !devm_request_mem_region(&pdev->dev, rtsu->start,
 					     resource_size(rtsu),
 					     dev_name(&pdev->dev))) {
 			dev_err(&pdev->dev, "can't request TSU resource.\n");
 			ret = -EBUSY;
 			goto out_release;
 		}
+		/* ioremap the TSU registers */
 		mdp->tsu_addr = devm_ioremap(&pdev->dev, rtsu->start,
 					     resource_size(rtsu));
 		if (!mdp->tsu_addr) {
 			dev_err(&pdev->dev, "TSU region ioremap() failed.\n");
 			ret = -ENOMEM;
 			goto out_release;
 		}
-		mdp->port = devno % 2;
+		mdp->port = port;
 		ndev->features = NETIF_F_HW_VLAN_CTAG_FILTER;
-	}
 
-	/* Need to init only the first port of the two sharing a TSU */
-	if (devno % 2 == 0) {
-		if (mdp->cd->chip_reset)
-			mdp->cd->chip_reset(ndev);
+		/* Need to init only the first port of the two sharing a TSU */
+		if (port == 0) {
+			if (mdp->cd->chip_reset)
+				mdp->cd->chip_reset(ndev);
 
-		if (mdp->cd->tsu) {
 			/* TSU init (Init only)*/
 			sh_eth_tsu_init(mdp);
 		}