This source file includes following definitions.
- of_mdio_parse_addr
- of_mdiobus_register
- of_phy_find_device
- of_phy_connect
- of_phy_get_and_connect
- of_phy_attach
- of_mdio_find_bus
- of_mdio_parse_addr
- of_phy_register_fixed_link
- of_phy_deregister_fixed_link
- of_phy_is_fixed_link
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8 #ifndef __LINUX_OF_MDIO_H
9 #define __LINUX_OF_MDIO_H
10
11 #include <linux/phy.h>
12 #include <linux/of.h>
13
14 #if IS_ENABLED(CONFIG_OF_MDIO)
15 extern int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np);
16 extern struct phy_device *of_phy_find_device(struct device_node *phy_np);
17 extern struct phy_device *of_phy_connect(struct net_device *dev,
18 struct device_node *phy_np,
19 void (*hndlr)(struct net_device *),
20 u32 flags, phy_interface_t iface);
21 extern struct phy_device *
22 of_phy_get_and_connect(struct net_device *dev, struct device_node *np,
23 void (*hndlr)(struct net_device *));
24 struct phy_device *of_phy_attach(struct net_device *dev,
25 struct device_node *phy_np, u32 flags,
26 phy_interface_t iface);
27
28 extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
29 extern int of_phy_register_fixed_link(struct device_node *np);
30 extern void of_phy_deregister_fixed_link(struct device_node *np);
31 extern bool of_phy_is_fixed_link(struct device_node *np);
32
33
34 static inline int of_mdio_parse_addr(struct device *dev,
35 const struct device_node *np)
36 {
37 u32 addr;
38 int ret;
39
40 ret = of_property_read_u32(np, "reg", &addr);
41 if (ret < 0) {
42 dev_err(dev, "%s has invalid PHY address\n", np->full_name);
43 return ret;
44 }
45
46
47 if (addr >= PHY_MAX_ADDR) {
48 dev_err(dev, "%s PHY address %i is too large\n",
49 np->full_name, addr);
50 return -EINVAL;
51 }
52
53 return addr;
54 }
55
56 #else
57 static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
58 {
59
60
61
62
63
64 return mdiobus_register(mdio);
65 }
66
67 static inline struct phy_device *of_phy_find_device(struct device_node *phy_np)
68 {
69 return NULL;
70 }
71
72 static inline struct phy_device *of_phy_connect(struct net_device *dev,
73 struct device_node *phy_np,
74 void (*hndlr)(struct net_device *),
75 u32 flags, phy_interface_t iface)
76 {
77 return NULL;
78 }
79
80 static inline struct phy_device *
81 of_phy_get_and_connect(struct net_device *dev, struct device_node *np,
82 void (*hndlr)(struct net_device *))
83 {
84 return NULL;
85 }
86
87 static inline struct phy_device *of_phy_attach(struct net_device *dev,
88 struct device_node *phy_np,
89 u32 flags, phy_interface_t iface)
90 {
91 return NULL;
92 }
93
94 static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np)
95 {
96 return NULL;
97 }
98
99 static inline int of_mdio_parse_addr(struct device *dev,
100 const struct device_node *np)
101 {
102 return -ENOSYS;
103 }
104 static inline int of_phy_register_fixed_link(struct device_node *np)
105 {
106 return -ENOSYS;
107 }
108 static inline void of_phy_deregister_fixed_link(struct device_node *np)
109 {
110 }
111 static inline bool of_phy_is_fixed_link(struct device_node *np)
112 {
113 return false;
114 }
115 #endif
116
117
118 #endif