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TOMOYO Linux Cross Reference
Linux/include/linux/of_mdio.h

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  1 /*
  2  * OF helpers for the MDIO (Ethernet PHY) API
  3  *
  4  * Copyright (c) 2009 Secret Lab Technologies, Ltd.
  5  *
  6  * This file is released under the GPLv2
  7  */
  8 
  9 #ifndef __LINUX_OF_MDIO_H
 10 #define __LINUX_OF_MDIO_H
 11 
 12 #include <linux/phy.h>
 13 #include <linux/of.h>
 14 
 15 #ifdef CONFIG_OF
 16 extern int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np);
 17 extern struct phy_device *of_phy_find_device(struct device_node *phy_np);
 18 extern struct phy_device *of_phy_connect(struct net_device *dev,
 19                                          struct device_node *phy_np,
 20                                          void (*hndlr)(struct net_device *),
 21                                          u32 flags, phy_interface_t iface);
 22 struct phy_device *of_phy_attach(struct net_device *dev,
 23                                  struct device_node *phy_np, u32 flags,
 24                                  phy_interface_t iface);
 25 
 26 extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
 27 extern int of_mdio_parse_addr(struct device *dev, const struct device_node *np);
 28 
 29 #else /* CONFIG_OF */
 30 static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
 31 {
 32         /*
 33          * Fall back to the non-DT function to register a bus.
 34          * This way, we don't have to keep compat bits around in drivers.
 35          */
 36 
 37         return mdiobus_register(mdio);
 38 }
 39 
 40 static inline struct phy_device *of_phy_find_device(struct device_node *phy_np)
 41 {
 42         return NULL;
 43 }
 44 
 45 static inline struct phy_device *of_phy_connect(struct net_device *dev,
 46                                                 struct device_node *phy_np,
 47                                                 void (*hndlr)(struct net_device *),
 48                                                 u32 flags, phy_interface_t iface)
 49 {
 50         return NULL;
 51 }
 52 
 53 static inline struct phy_device *of_phy_attach(struct net_device *dev,
 54                                                struct device_node *phy_np,
 55                                                u32 flags, phy_interface_t iface)
 56 {
 57         return NULL;
 58 }
 59 
 60 static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np)
 61 {
 62         return NULL;
 63 }
 64 
 65 static inline int of_mdio_parse_addr(struct device *dev,
 66                                      const struct device_node *np)
 67 {
 68         return -ENOSYS;
 69 }
 70 #endif /* CONFIG_OF */
 71 
 72 #if defined(CONFIG_OF) && defined(CONFIG_FIXED_PHY)
 73 extern int of_phy_register_fixed_link(struct device_node *np);
 74 extern bool of_phy_is_fixed_link(struct device_node *np);
 75 #else
 76 static inline int of_phy_register_fixed_link(struct device_node *np)
 77 {
 78         return -ENOSYS;
 79 }
 80 static inline bool of_phy_is_fixed_link(struct device_node *np)
 81 {
 82         return false;
 83 }
 84 #endif
 85 
 86 
 87 #endif /* __LINUX_OF_MDIO_H */
 88 

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