[PATCH v6 1/3] netdev/of/phy: New function: of_mdio_find_bus().

[David Miller]

From: David Daney <ddaney.cavm at gmail.com>
Date: Wed,  2 May 2012 18:16:37 -0700

> From: David Daney <david.daney at cavium.com>
> 
> Add of_mdio_find_bus() which allows an mii_bus to be located given its
> associated the device tree node.
> 
> This is needed by the follow-on patch to add a driver for MDIO bus
> multiplexers.
> 
> The of_mdiobus_register() function is modified so that the device tree
> node is recorded in the mii_bus.  Then we can find it again by
> iterating over all mdio_bus_class devices.
> 
> Because the OF device tree has now become an integral part of the
> kernel, this can live in mdio_bus.c (which contains the needed
> mdio_bus_class structure) instead of of_mdio.c.
> 
> Signed-off-by: David Daney <david.daney at cavium.com>

Applied.