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33d6737761
Export of_mdio_parse_addr() which allows parsing a given Ethernet PHY node MDIO address, verify it is within the allowed range, and return its value. This is going to be useful for the DSA code which needs to deal with multiple layers of MDIO buses. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
88 lines
2.2 KiB
C
88 lines
2.2 KiB
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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#ifdef CONFIG_OF
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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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struct phy_device *of_phy_attach(struct net_device *dev,
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struct device_node *phy_np, u32 flags,
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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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extern int of_mdio_parse_addr(struct device *dev, const struct device_node *np);
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#else /* CONFIG_OF */
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static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
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{
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/*
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* Fall back to the non-DT function to register a bus.
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* This way, we don't have to keep compat bits around in drivers.
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*/
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return mdiobus_register(mdio);
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}
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static inline struct phy_device *of_phy_find_device(struct device_node *phy_np)
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{
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return NULL;
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}
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static inline 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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{
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return NULL;
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}
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static inline struct phy_device *of_phy_attach(struct net_device *dev,
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struct device_node *phy_np,
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u32 flags, phy_interface_t iface)
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{
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return NULL;
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}
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static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np)
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{
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return NULL;
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}
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static inline int of_mdio_parse_addr(struct device *dev,
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const struct device_node *np)
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{
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return -ENOSYS;
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}
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#endif /* CONFIG_OF */
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#if defined(CONFIG_OF) && defined(CONFIG_FIXED_PHY)
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extern int of_phy_register_fixed_link(struct device_node *np);
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extern bool of_phy_is_fixed_link(struct device_node *np);
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#else
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static inline int of_phy_register_fixed_link(struct device_node *np)
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{
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return -ENOSYS;
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}
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static inline bool of_phy_is_fixed_link(struct device_node *np)
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{
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return false;
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}
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#endif
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#endif /* __LINUX_OF_MDIO_H */
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