phylib: rename mii_bus::dev to mii_bus::parent

In preparation of giving mii_bus objects a device tree presence of
their own, rename struct mii_bus's ->dev argument to ->parent, since
having a 'struct device *dev' that points to our parent device
conflicts with introducing a 'struct device dev' representing our own
device.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Andy Fleming <afleming@freescale.com>
diff --git a/drivers/net/fs_enet/mii-bitbang.c b/drivers/net/fs_enet/mii-bitbang.c
index be4b72f..2774252 100644
--- a/drivers/net/fs_enet/mii-bitbang.c
+++ b/drivers/net/fs_enet/mii-bitbang.c
@@ -203,7 +203,7 @@
 		if (!strcmp(np->type, "ethernet-phy"))
 			add_phy(new_bus, np);
 
-	new_bus->dev = &ofdev->dev;
+	new_bus->parent = &ofdev->dev;
 	dev_set_drvdata(&ofdev->dev, new_bus);
 
 	ret = mdiobus_register(new_bus);