From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Date: Wed, 15 Feb 2012 17:55:01 +0000 (+0000)
Subject: net: sh_eth: modify a condition of ioremap for TSU
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6ba88021c36516c26c11eff8c6d7d9a045faecd3;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

net: sh_eth: modify a condition of ioremap for TSU

If the controller has TSU, the each channel needs TSU registers.
This patch also fixes the iounmap condition in the sh_eth_drv_remove().

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5a5afbc7273b..8bd0e5897424 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -1859,18 +1859,20 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	/* read and set MAC address */
 	read_mac_address(ndev, pd->mac_addr);
 
+	/* ioremap the TSU registers */
+	if (mdp->cd->tsu) {
+		struct resource *rtsu;
+		rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+		if (!rtsu) {
+			dev_err(&pdev->dev, "Not found TSU resource\n");
+			goto out_release;
+		}
+		mdp->tsu_addr = ioremap(rtsu->start,
+					resource_size(rtsu));
+	}
+
 	/* initialize first or needed device */
 	if (!devno || pd->needs_init) {
-		if (mdp->cd->tsu) {
-			struct resource *rtsu;
-			rtsu = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-			if (!rtsu) {
-				dev_err(&pdev->dev, "Not found TSU resource\n");
-				goto out_release;
-			}
-			mdp->tsu_addr = ioremap(rtsu->start,
-						resource_size(rtsu));
-		}
 		if (mdp->cd->chip_reset)
 			mdp->cd->chip_reset(ndev);
 
@@ -1919,7 +1921,8 @@ static int sh_eth_drv_remove(struct platform_device *pdev)
 	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct sh_eth_private *mdp = netdev_priv(ndev);
 
-	iounmap(mdp->tsu_addr);
+	if (mdp->cd->tsu)
+		iounmap(mdp->tsu_addr);
 	sh_mdio_release(ndev);
 	unregister_netdev(ndev);
 	pm_runtime_disable(&pdev->dev);