2510602200
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>
27 lines
837 B
C
27 lines
837 B
C
/*
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* OF helpers for the MDIO (Ethernet PHY) API
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*
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* Copyright (c) 2009 Secret Lab Technologies, Ltd.
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*
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* This file is released under the GPLv2
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*/
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#ifndef __LINUX_OF_MDIO_H
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#define __LINUX_OF_MDIO_H
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#include <linux/phy.h>
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#include <linux/of.h>
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extern int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np);
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extern struct phy_device *of_phy_find_device(struct device_node *phy_np);
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extern struct phy_device *of_phy_connect(struct net_device *dev,
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struct device_node *phy_np,
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void (*hndlr)(struct net_device *),
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u32 flags, phy_interface_t iface);
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extern struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
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void (*hndlr)(struct net_device *),
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phy_interface_t iface);
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extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
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#endif /* __LINUX_OF_MDIO_H */
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