blk-mq: fix iteration of busy bitmap
[linux-2.6-block.git] / 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
f9dc9ac5 15#ifdef CONFIG_OF
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16extern int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np);
17extern struct phy_device *of_phy_find_device(struct device_node *phy_np);
18extern 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);
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22struct phy_device *of_phy_attach(struct net_device *dev,
23 struct device_node *phy_np, u32 flags,
24 phy_interface_t iface);
8bc487d1 25
25106022 26extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
33d67377 27extern int of_mdio_parse_addr(struct device *dev, const struct device_node *np);
25106022 28
f9dc9ac5 29#else /* CONFIG_OF */
2a5cf801 30static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
f9dc9ac5 31{
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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);
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38}
39
2a5cf801 40static inline struct phy_device *of_phy_find_device(struct device_node *phy_np)
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41{
42 return NULL;
43}
44
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45static 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)
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49{
50 return NULL;
51}
52
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53static 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
2a5cf801 60static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np)
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61{
62 return NULL;
63}
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64
65static inline int of_mdio_parse_addr(struct device *dev,
66 const struct device_node *np)
67{
68 return -ENOSYS;
69}
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70#endif /* CONFIG_OF */
71
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72#if defined(CONFIG_OF) && defined(CONFIG_FIXED_PHY)
73extern int of_phy_register_fixed_link(struct device_node *np);
74extern bool of_phy_is_fixed_link(struct device_node *np);
75#else
76static inline int of_phy_register_fixed_link(struct device_node *np)
77{
78 return -ENOSYS;
79}
80static inline bool of_phy_is_fixed_link(struct device_node *np)
81{
82 return false;
83}
84#endif
85
86
8bc487d1 87#endif /* __LINUX_OF_MDIO_H */