include/linux/of_mdio.h

   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 extern struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
  26                                          void (*hndlr)(struct net_device *),
  27                                          phy_interface_t iface);
  28
  29 extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
  30
  31 #else /* CONFIG_OF */
  32 static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
  33 {
  34         /*
  35          * Fall back to the non-DT function to register a bus.
  36          * This way, we don't have to keep compat bits around in drivers.
  37          */
  38
  39         return mdiobus_register(mdio);
  40 }
  41
  42 static inline struct phy_device *of_phy_find_device(struct device_node *phy_np)
  43 {
  44         return NULL;
  45 }
  46
  47 static inline struct phy_device *of_phy_connect(struct net_device *dev,
  48                                                 struct device_node *phy_np,
  49                                                 void (*hndlr)(struct net_device *),
  50                                                 u32 flags, phy_interface_t iface)
  51 {
  52         return NULL;
  53 }
  54
  55 static inline struct phy_device *of_phy_attach(struct net_device *dev,
  56                                                struct device_node *phy_np,
  57                                                u32 flags, phy_interface_t iface)
  58 {
  59         return NULL;
  60 }
  61
  62 static inline struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
  63                                                            void (*hndlr)(struct net_device *),
  64                                                            phy_interface_t iface)
  65 {
  66         return NULL;
  67 }
  68
  69 static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np)
  70 {
  71         return NULL;
  72 }
  73 #endif /* CONFIG_OF */
  74
  75 #endif /* __LINUX_OF_MDIO_H */