net: davinci_emac: Fix incomplete code for getting the phy from device tree

Looks like the phy_id is never set up beyond getting the phandle.
Note that we can remove the ifdef for phy_node as there is a stub
for of_phy_connec() if CONFIG_OF is not set.

Cc: Brian Hutchinson <b.hutchman@gmail.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 59fdcdd43ed1d68b1fbc87169e8b1ffc08c37255..e44c8d84a3c65d923587f7e3549aebba822e1762 100644 (file)
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -62,6 +62,7 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_device.h>
+#include <linux/of_mdio.h>
 #include <linux/of_irq.h>
 #include <linux/of_net.h>
 
@@ -343,9 +344,7 @@ struct emac_priv {
        u32 multicast_hash_cnt[EMAC_NUM_MULTICAST_BITS];
        u32 rx_addr_type;
        const char *phy_id;
-#ifdef CONFIG_OF
        struct device_node *phy_node;
-#endif
        struct phy_device *phydev;
        spinlock_t lock;
        /*platform specific members*/
@@ -1603,8 +1602,20 @@ static int emac_dev_open(struct net_device *ndev)
        cpdma_ctlr_start(priv->dma);
 
        priv->phydev = NULL;
+
+       if (priv->phy_node) {
+               priv->phydev = of_phy_connect(ndev, priv->phy_node,
+                                             &emac_adjust_link, 0, 0);
+               if (!priv->phydev) {
+                       dev_err(emac_dev, "could not connect to phy %s\n",
+                               priv->phy_node->full_name);
+                       ret = -ENODEV;
+                       goto err;
+               }
+       }
+
        /* use the first phy on the bus if pdata did not give us a phy id */
-       if (!priv->phy_id) {
+       if (!priv->phydev && !priv->phy_id) {
                struct device *phy;
 
                phy = bus_find_device(&mdio_bus_type, NULL, NULL,
@@ -1613,7 +1624,7 @@ static int emac_dev_open(struct net_device *ndev)
                        priv->phy_id = dev_name(phy);
        }
 
-       if (priv->phy_id && *priv->phy_id) {
+       if (!priv->phydev && priv->phy_id && *priv->phy_id) {
                priv->phydev = phy_connect(ndev, priv->phy_id,
                                           &emac_adjust_link,
                                           PHY_INTERFACE_MODE_MII);
@@ -1634,7 +1645,9 @@ static int emac_dev_open(struct net_device *ndev)
                        "(mii_bus:phy_addr=%s, id=%x)\n",
                        priv->phydev->drv->name, dev_name(&priv->phydev->dev),
                        priv->phydev->phy_id);
-       } else {
+       }
+
+       if (!priv->phydev) {
                /* No PHY , fix the link, speed and duplex settings */
                dev_notice(emac_dev, "no phy, defaulting to 100/full\n");
                priv->link = 1;