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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155/* SPDX-License-Identifier: GPL-2.0-only *//* * OF helpers for the MDIO (Ethernet PHY) API * * Copyright (c) 2009 Secret Lab Technologies, Ltd. */
#ifndef __LINUX_OF_MDIO_H#define __LINUX_OF_MDIO_H
#include <linux/device.h>#include <linux/phy.h>#include <linux/of.h>
#if IS_ENABLED(CONFIG_OF_MDIO)bool of_mdiobus_child_is_phy(struct device_node *child);int __of_mdiobus_register(struct mii_bus *mdio, struct device_node *np, struct module *owner);
static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np){ return __of_mdiobus_register(mdio, np, THIS_MODULE);}
int __devm_of_mdiobus_register(struct device *dev, struct mii_bus *mdio, struct device_node *np, struct module *owner);
static inline int devm_of_mdiobus_register(struct device *dev, struct mii_bus *mdio, struct device_node *np){ return __devm_of_mdiobus_register(dev, mdio, np, THIS_MODULE);}
struct mdio_device *of_mdio_find_device(struct device_node *np);struct phy_device *of_phy_find_device(struct device_node *phy_np);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_get_and_connect(struct net_device *dev, struct device_node *np, void (*hndlr)(struct net_device *));
struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);int of_phy_register_fixed_link(struct device_node *np);void of_phy_deregister_fixed_link(struct device_node *np);bool of_phy_is_fixed_link(struct device_node *np);int of_mdiobus_phy_device_register(struct mii_bus *mdio, struct phy_device *phy, struct device_node *child, u32 addr);
static inline int of_mdio_parse_addr(struct device *dev, const struct device_node *np){ u32 addr; int ret;
ret = of_property_read_u32(np, "reg", &addr); if (ret < 0) { dev_err(dev, "%s has invalid PHY address\n", np->full_name); return ret; }
/* A PHY must have a reg property in the range [0-31] */ if (addr >= PHY_MAX_ADDR) { dev_err(dev, "%s PHY address %i is too large\n", np->full_name, addr); return -EINVAL; }
return addr;}
#else /* CONFIG_OF_MDIO */static inline bool of_mdiobus_child_is_phy(struct device_node *child){ return false;}
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 int devm_of_mdiobus_register(struct device *dev, struct mii_bus *mdio, struct device_node *np){ return devm_mdiobus_register(dev, mdio);}
static inline struct mdio_device *of_mdio_find_device(struct device_node *np){ return NULL;}
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_get_and_connect(struct net_device *dev, struct device_node *np, void (*hndlr)(struct net_device *)){ 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;}static inline int of_phy_register_fixed_link(struct device_node *np){ return -ENOSYS;}static inline void of_phy_deregister_fixed_link(struct device_node *np){}static inline bool of_phy_is_fixed_link(struct device_node *np){ return false;}
static inline int of_mdiobus_phy_device_register(struct mii_bus *mdio, struct phy_device *phy, struct device_node *child, u32 addr){ return -ENOSYS;}#endif
#endif /* __LINUX_OF_MDIO_H */