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gerrit-public.fairphone.software / kernel / msm-4.19 / 56e2f23b7225d2e7b42826aee065cbf96834114d / . / include / linux / of_mdio.h
blob: 6c8cb9aa4c00751f4b0f3b588692b1bd3a7781a9 [file] [log] [blame]
Grant Likely8bc487d2009-04-25 12:52:56 +0000[diff] [blame]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
Srinivas Kandagatlaf9dc9ac2012-08-24 01:58:59 +0000[diff] [blame]15#ifdef CONFIG_OF
Grant Likely8bc487d2009-04-25 12:52:56 +0000[diff] [blame]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);
Andy Fleming7614aba2014-01-10 14:28:11 +0800[diff] [blame]22struct phy_device *of_phy_attach(struct net_device *dev,
23 struct device_node *phy_np, u32 flags,
24 phy_interface_t iface);
Grant Likely8bc487d2009-04-25 12:52:56 +0000[diff] [blame]25
David Daney25106022012-05-02 15:16:37 +0000[diff] [blame]26extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
Florian Fainelli33d67372015-03-10 16:57:11 -0700[diff] [blame]27extern int of_mdio_parse_addr(struct device *dev, const struct device_node *np);
David Daney25106022012-05-02 15:16:37 +0000[diff] [blame]28
Srinivas Kandagatlaf9dc9ac2012-08-24 01:58:59 +0000[diff] [blame]29#else /* CONFIG_OF */
Mark Brown2a5cf802012-10-09 18:33:38 +0000[diff] [blame]30static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
Srinivas Kandagatlaf9dc9ac2012-08-24 01:58:59 +0000[diff] [blame]31{
Daniel Mack23a456f2014-05-06 18:52:16 +0200[diff] [blame]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);
Srinivas Kandagatlaf9dc9ac2012-08-24 01:58:59 +0000[diff] [blame]38}
39
Mark Brown2a5cf802012-10-09 18:33:38 +0000[diff] [blame]40static inline struct phy_device *of_phy_find_device(struct device_node *phy_np)
Srinivas Kandagatlaf9dc9ac2012-08-24 01:58:59 +0000[diff] [blame]41{
42 return NULL;
43}
44
Mark Brown2a5cf802012-10-09 18:33:38 +0000[diff] [blame]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)
Srinivas Kandagatlaf9dc9ac2012-08-24 01:58:59 +0000[diff] [blame]49{
50 return NULL;
51}
52
Andy Fleming7614aba2014-01-10 14:28:11 +0800[diff] [blame]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
Mark Brown2a5cf802012-10-09 18:33:38 +0000[diff] [blame]60static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np)
Srinivas Kandagatlaf9dc9ac2012-08-24 01:58:59 +0000[diff] [blame]61{
62 return NULL;
63}
Florian Fainelli33d67372015-03-10 16:57:11 -0700[diff] [blame]64
65static inline int of_mdio_parse_addr(struct device *dev,
66 const struct device_node *np)
67{
68 return -ENOSYS;
69}
Srinivas Kandagatlaf9dc9ac2012-08-24 01:58:59 +0000[diff] [blame]70#endif /* CONFIG_OF */
71
Ben Hutchingsd1bd3302016-06-21 01:17:17 +0100[diff] [blame]72#if defined(CONFIG_OF) && IS_ENABLED(CONFIG_FIXED_PHY)
Thomas Petazzoni3be2a492014-05-16 16:14:05 +0200[diff] [blame]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
Grant Likely8bc487d2009-04-25 12:52:56 +0000[diff] [blame]87#endif /* __LINUX_OF_MDIO_H */