gianfar: Implement proper, per netdevice wakeup management

This patch implements wakeup management for the gianfar driver.

The driver should set wakeup enable if WOL is enabled, so that
phylib won't power off an attached PHY.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/gianfar.c

@@ -463,6 +463,9 @@ static int gfar_probe(struct of_device *ofdev,
 		goto register_fail;
 	}
 
+	device_init_wakeup(&dev->dev,
+		priv->device_flags & FSL_GIANFAR_DEV_HAS_MAGIC_PACKET);
+
 	/* fill out IRQ number and name fields */
 	len_devname = strlen(dev->name);
 	strncpy(&priv->int_name_tx[0], dev->name, len_devname);
@@ -1200,6 +1203,8 @@ static int gfar_enet_open(struct net_device *dev)
 
 	netif_start_queue(dev);
 
+	device_set_wakeup_enable(&dev->dev, priv->wol_en);
+
 	return err;
 }
 

drivers/net/gianfar_ethtool.c

@@ -600,6 +600,7 @@ static int gfar_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 
 	spin_lock_irqsave(&priv->bflock, flags);
 	priv->wol_en = wol->wolopts & WAKE_MAGIC ? 1 : 0;
+	device_set_wakeup_enable(&dev->dev, priv->wol_en);
 	spin_unlock_irqrestore(&priv->bflock, flags);
 
 	return 0;