| /* |
| * 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 */ |