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/*
* OF helpers for the MDIO (Ethernet PHY) API
*
* Copyright (c) 2009 Secret Lab Technologies, Ltd.
*
* This file is released under the GPLv2
*/
#ifndef __LINUX_OF_MDIO_H
#define __LINUX_OF_MDIO_H
#include <linux/phy.h>
#include <linux/of.h>
#ifdef CONFIG_OF
extern int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np);
extern struct phy_device *of_phy_find_device(struct device_node *phy_np);
extern struct phy_device *of_phy_connect(struct net_device *dev,
struct device_node *phy_np,
void (*hndlr)(struct net_device *),
u32 flags, phy_interface_t iface);
struct phy_device *of_phy_attach(struct net_device *dev,
struct device_node *phy_np, u32 flags,
phy_interface_t iface);
extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
extern int of_mdio_parse_addr(struct device *dev, const struct device_node *np);
#else /* CONFIG_OF */
static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
{
/*
* Fall back to the non-DT function to register a bus.
* This way, we don't have to keep compat bits around in drivers.
*/
return mdiobus_register(mdio);
}
static inline struct phy_device *of_phy_find_device(struct device_node *phy_np)
{
return NULL;
}
static inline struct phy_device *of_phy_connect(struct net_device *dev,
struct device_node *phy_np,
void (*hndlr)(struct net_device *),
u32 flags, phy_interface_t iface)
{
return NULL;
}
static inline struct phy_device *of_phy_attach(struct net_device *dev,
struct device_node *phy_np,
u32 flags, phy_interface_t iface)
{
return NULL;
}
static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np)
{
return NULL;
}
static inline int of_mdio_parse_addr(struct device *dev,
const struct device_node *np)
{
return -ENOSYS;
}
#endif /* CONFIG_OF */
#if defined(CONFIG_OF) && IS_ENABLED(CONFIG_FIXED_PHY)
extern int of_phy_register_fixed_link(struct device_node *np);
extern bool of_phy_is_fixed_link(struct device_node *np);
#else
static inline int of_phy_register_fixed_link(struct device_node *np)
{
return -ENOSYS;
}
static inline bool of_phy_is_fixed_link(struct device_node *np)
{
return false;
}
#endif
#endif /* __LINUX_OF_MDIO_H */
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