diff options
| author | David Daney <david.daney@cavium.com> | 2012-05-02 15:16:37 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-05-07 22:58:09 -0400 |
| commit | 251060220021283eef3652145a41f5b26db97ce5 (patch) | |
| tree | e04d2a1695e19e959873cf8a6d571a925ca59cc5 /include/linux | |
| parent | 7dc2ce5f12cb5d166140820d5063027dc2449ac1 (diff) | |
netdev/of/phy: New function: of_mdio_find_bus().
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@cavium.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/of_mdio.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/of_mdio.h b/include/linux/of_mdio.h index 53b94e025c7c..912c27a0f7ee 100644 --- a/include/linux/of_mdio.h +++ b/include/linux/of_mdio.h @@ -22,4 +22,6 @@ extern struct phy_device *of_phy_connect_fixed_link(struct net_device *dev, void (*hndlr)(struct net_device *), phy_interface_t iface); +extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np); + #endif /* __LINUX_OF_MDIO_H */ |