linux-kernel - [PATCH 2/5] net/cadence/at91_ether: Simplify OF dependencies

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Message-Id: <1364931311-30603-3-git-send-email-linux@roeck-us.net>
Date:	Tue,  2 Apr 2013 12:35:08 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	"David S. Miller" <davem@...emloft.net>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Grant Likely <grant.likely@...retlab.ca>
Cc:	Rob Herring <rob.herring@...xeda.com>,
	David Daney <david.daney@...ium.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, devicetree-discuss@...ts.ozlabs.org,
	Guenter Roeck <linux@...ck-us.net>
Subject: [PATCH 2/5] net/cadence/at91_ether: Simplify OF dependencies

With of_get_mac_address() and of_get_phy_mode() now defined as dummy
functions if OF_NET is not configured, it is no longer necessary to
provide OF dependent functions as front-end. Also, the two functions
depend on OF_NET, not on OF, so the conditional code was not correct
anyway.

Drop the front-end functions and call of_get_mac_address() and
of_get_phy_mode() directly instead.

Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
 drivers/net/ethernet/cadence/at91_ether.c |   44 ++++-------------------------
 1 file changed, 6 insertions(+), 38 deletions(-)

diff --git a/drivers/net/ethernet/cadence/at91_ether.c b/drivers/net/ethernet/cadence/at91_ether.c
index 3becdb2..50565cb 100644
--- a/drivers/net/ethernet/cadence/at91_ether.c
+++ b/drivers/net/ethernet/cadence/at91_ether.c
@@ -303,42 +303,7 @@ static const struct of_device_id at91ether_dt_ids[] = {
 	{ .compatible = "cdns,emac" },
 	{ /* sentinel */ }
 };
-
 MODULE_DEVICE_TABLE(of, at91ether_dt_ids);
-
-static int at91ether_get_phy_mode_dt(struct platform_device *pdev)
-{
-	struct device_node *np = pdev->dev.of_node;
-
-	if (np)
-		return of_get_phy_mode(np);
-
-	return -ENODEV;
-}
-
-static int at91ether_get_hwaddr_dt(struct macb *bp)
-{
-	struct device_node *np = bp->pdev->dev.of_node;
-
-	if (np) {
-		const char *mac = of_get_mac_address(np);
-		if (mac) {
-			memcpy(bp->dev->dev_addr, mac, ETH_ALEN);
-			return 0;
-		}
-	}
-
-	return -ENODEV;
-}
-#else
-static int at91ether_get_phy_mode_dt(struct platform_device *pdev)
-{
-	return -ENODEV;
-}
-static int at91ether_get_hwaddr_dt(struct macb *bp)
-{
-	return -ENODEV;
-}
 #endif
 
 /* Detect MAC & PHY and perform ethernet interface initialization */
@@ -352,6 +317,7 @@ static int __init at91ether_probe(struct platform_device *pdev)
 	struct macb *lp;
 	int res;
 	u32 reg;
+	const char *mac;
 
 	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!regs)
@@ -403,11 +369,13 @@ static int __init at91ether_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
-	res = at91ether_get_hwaddr_dt(lp);
-	if (res < 0)
+	mac = of_get_mac_address(pdev->dev.of_node);
+	if (mac)
+		memcpy(lp->dev->dev_addr, mac, ETH_ALEN);
+	else
 		macb_get_hwaddr(lp);
 
-	res = at91ether_get_phy_mode_dt(pdev);
+	res = of_get_phy_mode(pdev->dev.of_node);
 	if (res < 0) {
 		if (board_data && board_data->is_rmii)
 			lp->phy_interface = PHY_INTERFACE_MODE_RMII;
-- 
1.7.9.7

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