of_mdio_find_bus (9) Linux Manual Page
of_mdio_find_bus – Given an mii_bus node, find the mii_bus.
Synopsis
struct mii_bus *of_mdio_find_bus(struct device_node *mdio_bus_np);Arguments
mdio_bus_np
-
- Pointer to the mii_bus.
Description
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.