of_mdio_find_bus — Given an mii_bus node, find the mii_bus.
struct mii_bus * of_mdio_find_bus ( | struct device_node * mdio_bus_np); |
Returns a reference to the mii_bus, or NULL if none found. The embedded struct device will have its reference count incremented, and this must be put once the bus is finished with.
Because the association of a device_node and mii_bus is made via
of_mdiobus_register, the mii_bus cannot be found before it is
registered with of_mdiobus_register.