linux-stable/include/linux/of_device.h
Linus Torvalds 250f6715a4 The following text was taken from the original review request:
"[RFC PATCH 0/2] audit of linux/device.h users in include/*"
 		https://lkml.org/lkml/2012/3/4/159
 --
 
 Nearly every subsystem has some kind of header with a proto like:
 
 	void foo(struct device *dev);
 
 and yet there is no reason for most of these guys to care about the
 sub fields within the device struct.  This allows us to significantly
 reduce the scope of headers including headers.  For this instance, a
 reduction of about 40% is achieved by replacing the include with the
 simple fact that the device is some kind of a struct.
 
 Unlike the much larger module.h cleanup, this one is simply two
 commits.  One to fix the implicit <linux/device.h> users, and then
 one to delete the device.h includes from the linux/include/ dir
 wherever possible.
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Merge tag 'device-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

Pull <linux/device.h> avoidance patches from Paul Gortmaker:
 "Nearly every subsystem has some kind of header with a proto like:

	void foo(struct device *dev);

  and yet there is no reason for most of these guys to care about the
  sub fields within the device struct.  This allows us to significantly
  reduce the scope of headers including headers.  For this instance, a
  reduction of about 40% is achieved by replacing the include with the
  simple fact that the device is some kind of a struct.

  Unlike the much larger module.h cleanup, this one is simply two
  commits.  One to fix the implicit <linux/device.h> users, and then one
  to delete the device.h includes from the linux/include/ dir wherever
  possible."

* tag 'device-for-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
  device.h: audit and cleanup users in main include dir
  device.h: cleanup users outside of linux/include (C files)
2012-03-24 10:41:37 -07:00

72 lines
2 KiB
C

#ifndef _LINUX_OF_DEVICE_H
#define _LINUX_OF_DEVICE_H
#include <linux/platform_device.h>
#include <linux/of_platform.h> /* temporary until merge */
#ifdef CONFIG_OF_DEVICE
#include <linux/of.h>
#include <linux/mod_devicetable.h>
struct device;
extern const struct of_device_id *of_match_device(
const struct of_device_id *matches, const struct device *dev);
extern void of_device_make_bus_id(struct device *dev);
/**
* of_driver_match_device - Tell if a driver's of_match_table matches a device.
* @drv: the device_driver structure to test
* @dev: the device structure to match against
*/
static inline int of_driver_match_device(struct device *dev,
const struct device_driver *drv)
{
return of_match_device(drv->of_match_table, dev) != NULL;
}
extern struct platform_device *of_dev_get(struct platform_device *dev);
extern void of_dev_put(struct platform_device *dev);
extern int of_device_add(struct platform_device *pdev);
extern int of_device_register(struct platform_device *ofdev);
extern void of_device_unregister(struct platform_device *ofdev);
extern ssize_t of_device_get_modalias(struct device *dev,
char *str, ssize_t len);
extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);
static inline void of_device_node_put(struct device *dev)
{
of_node_put(dev->of_node);
}
#else /* CONFIG_OF_DEVICE */
static inline int of_driver_match_device(struct device *dev,
struct device_driver *drv)
{
return 0;
}
static inline void of_device_uevent(struct device *dev,
struct kobj_uevent_env *env) { }
static inline int of_device_uevent_modalias(struct device *dev,
struct kobj_uevent_env *env)
{
return -ENODEV;
}
static inline void of_device_node_put(struct device *dev) { }
static inline const struct of_device_id *of_match_device(
const struct of_device_id *matches, const struct device *dev)
{
return NULL;
}
#endif /* CONFIG_OF_DEVICE */
#endif /* _LINUX_OF_DEVICE_H */