Gitiles
Code Review Sign In
gerrit-public.fairphone.software / kernel / msm-4.9 / c6601225380088018ae93df2ba7f0bb65334d63b / . / include / linux / of_device.h
blob: 35aa44ad9f2cb21b7ce2422dfbae2fc296aba7cc [file] [log] [blame]
Stephen Rothwellf898f8d2007-05-01 16:49:51 +1000[diff] [blame]1#ifndef _LINUX_OF_DEVICE_H
2#define _LINUX_OF_DEVICE_H
Stephen Rothwellf898f8d2007-05-01 16:49:51 +1000[diff] [blame]3
Grant Likelyb505ff52010-06-18 11:09:59 -0600[diff] [blame]4/*
5 * The of_device *was* a kind of "base class" that was a superset of
6 * struct device for use by devices attached to an OF node and probed
7 * using OF properties. However, the important bit of OF-style
8 * probing, namely the device node pointer, has been moved into the
9 * common struct device when CONFIG_OF is set to make OF-style probing
10 * available to all bus types. So now, just make of_device and
11 * platform_device equivalent so that current of_platform bus users
12 * can be transparently migrated over to using the platform bus.
13 *
14 * This line will go away once all references to of_device are removed
15 * from the kernel.
16 */
17#define of_device platform_device
Grant Likelyf9f5a462010-06-09 22:22:17 -0600[diff] [blame]18#include <linux/platform_device.h>
Grant Likely29596042010-06-29 11:15:54 -0600[diff] [blame]19#include <linux/of_platform.h> /* temporary until merge */
Grant Likelyb505ff52010-06-18 11:09:59 -0600[diff] [blame]20
Grant Likelyf9f5a462010-06-09 22:22:17 -0600[diff] [blame]21#ifdef CONFIG_OF_DEVICE
22#include <linux/device.h>
23#include <linux/of.h>
24#include <linux/mod_devicetable.h>
Stephen Rothwellf898f8d2007-05-01 16:49:51 +1000[diff] [blame]25
26#define to_of_device(d) container_of(d, struct of_device, dev)
27
Stephen Rothwellf898f8d2007-05-01 16:49:51 +1000[diff] [blame]28extern const struct of_device_id *of_match_device(
Grant Likely44504b22010-04-13 16:13:22 -0700[diff] [blame]29 const struct of_device_id *matches, const struct device *dev);
Grant Likelyc6601222010-07-23 15:04:01 -0600[diff] [blame^]30extern void of_device_make_bus_id(struct device *dev);
Stephen Rothwellf898f8d2007-05-01 16:49:51 +1000[diff] [blame]31
Grant Likely8cec0e72010-06-08 07:48:17 -0600[diff] [blame]32/**
33 * of_driver_match_device - Tell if a driver's of_match_table matches a device.
34 * @drv: the device_driver structure to test
35 * @dev: the device structure to match against
36 */
37static inline int of_driver_match_device(const struct device *dev,
38 const struct device_driver *drv)
39{
40 return of_match_device(drv->of_match_table, dev) != NULL;
41}
42
Grant Likely94a0cb12010-07-22 13:59:23 -0600[diff] [blame]43extern struct platform_device *of_dev_get(struct platform_device *dev);
44extern void of_dev_put(struct platform_device *dev);
Stephen Rothwellf898f8d2007-05-01 16:49:51 +1000[diff] [blame]45
Grant Likely94a0cb12010-07-22 13:59:23 -0600[diff] [blame]46extern int of_device_register(struct platform_device *ofdev);
47extern void of_device_unregister(struct platform_device *ofdev);
Stephen Rothwellf898f8d2007-05-01 16:49:51 +1000[diff] [blame]48extern void of_release_dev(struct device *dev);
49
Grant Likely94a0cb12010-07-22 13:59:23 -0600[diff] [blame]50static inline void of_device_free(struct platform_device *dev)
Joachim Fenkesfec738d2007-09-26 19:44:12 +1000[diff] [blame]51{
52 of_release_dev(&dev->dev);
53}
54
Grant Likely34a1c1e2010-06-08 07:48:13 -0600[diff] [blame]55extern ssize_t of_device_get_modalias(struct device *dev,
Stephen Rothwell09e67ca2008-05-16 11:57:45 +1000[diff] [blame]56 char *str, ssize_t len);
Grant Likelydd27dcd2010-06-08 07:48:12 -0600[diff] [blame]57
58extern int of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
59
60
Grant Likely8cec0e72010-06-08 07:48:17 -0600[diff] [blame]61#else /* CONFIG_OF_DEVICE */
62
63static inline int of_driver_match_device(struct device *dev,
64 struct device_driver *drv)
65{
66 return 0;
67}
68
Grant Likelyeca39302010-06-08 07:48:21 -0600[diff] [blame]69static inline int of_device_uevent(struct device *dev,
70 struct kobj_uevent_env *env)
71{
72 return -ENODEV;
73}
74
Grant Likelyefb2e012010-04-13 16:12:27 -0700[diff] [blame]75#endif /* CONFIG_OF_DEVICE */
Stephen Rothwell09e67ca2008-05-16 11:57:45 +1000[diff] [blame]76
Stephen Rothwellf898f8d2007-05-01 16:49:51 +1000[diff] [blame]77#endif /* _LINUX_OF_DEVICE_H */