]>
git.proxmox.com Git - mirror_ubuntu-jammy-kernel.git/blob - include/linux/of_mdio.h
2 * OF helpers for the MDIO (Ethernet PHY) API
4 * Copyright (c) 2009 Secret Lab Technologies, Ltd.
6 * This file is released under the GPLv2
9 #ifndef __LINUX_OF_MDIO_H
10 #define __LINUX_OF_MDIO_H
12 #include <linux/phy.h>
15 #if IS_ENABLED(CONFIG_OF_MDIO)
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 extern struct phy_device
*
23 of_phy_get_and_connect(struct net_device
*dev
, struct device_node
*np
,
24 void (*hndlr
)(struct net_device
*));
25 struct phy_device
*of_phy_attach(struct net_device
*dev
,
26 struct device_node
*phy_np
, u32 flags
,
27 phy_interface_t iface
);
29 extern struct mii_bus
*of_mdio_find_bus(struct device_node
*mdio_np
);
30 extern int of_phy_register_fixed_link(struct device_node
*np
);
31 extern void of_phy_deregister_fixed_link(struct device_node
*np
);
32 extern bool of_phy_is_fixed_link(struct device_node
*np
);
35 static inline int of_mdio_parse_addr(struct device
*dev
,
36 const struct device_node
*np
)
41 ret
= of_property_read_u32(np
, "reg", &addr
);
43 dev_err(dev
, "%s has invalid PHY address\n", np
->full_name
);
47 /* A PHY must have a reg property in the range [0-31] */
48 if (addr
>= PHY_MAX_ADDR
) {
49 dev_err(dev
, "%s PHY address %i is too large\n",
57 #else /* CONFIG_OF_MDIO */
58 static inline int of_mdiobus_register(struct mii_bus
*mdio
, struct device_node
*np
)
61 * Fall back to the non-DT function to register a bus.
62 * This way, we don't have to keep compat bits around in drivers.
65 return mdiobus_register(mdio
);
68 static inline struct phy_device
*of_phy_find_device(struct device_node
*phy_np
)
73 static inline struct phy_device
*of_phy_connect(struct net_device
*dev
,
74 struct device_node
*phy_np
,
75 void (*hndlr
)(struct net_device
*),
76 u32 flags
, phy_interface_t iface
)
81 static inline struct phy_device
*
82 of_phy_get_and_connect(struct net_device
*dev
, struct device_node
*np
,
83 void (*hndlr
)(struct net_device
*))
88 static inline struct phy_device
*of_phy_attach(struct net_device
*dev
,
89 struct device_node
*phy_np
,
90 u32 flags
, phy_interface_t iface
)
95 static inline struct mii_bus
*of_mdio_find_bus(struct device_node
*mdio_np
)
100 static inline int of_mdio_parse_addr(struct device
*dev
,
101 const struct device_node
*np
)
105 static inline int of_phy_register_fixed_link(struct device_node
*np
)
109 static inline void of_phy_deregister_fixed_link(struct device_node
*np
)
112 static inline bool of_phy_is_fixed_link(struct device_node
*np
)
119 #endif /* __LINUX_OF_MDIO_H */