mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2025-01-18 19:27:13 +00:00
8cec0e7b4c
Add of_driver_match_device() helper function. This function can be used by bus types to determine if a driver works with a device when using OF style matching. If CONFIG_OF is unselected, then it is a nop. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> CC: Greg Kroah-Hartman <gregkh@suse.de> CC: Michal Simek <monstr@monstr.eu> CC: Grant Likely <grant.likely@secretlab.ca> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: Stephen Rothwell <sfr@canb.auug.org.au> CC: linux-kernel@vger.kernel.org CC: microblaze-uclinux@itee.uq.edu.au CC: linuxppc-dev@ozlabs.org CC: devicetree-discuss@lists.ozlabs.org
73 lines
2.1 KiB
C
73 lines
2.1 KiB
C
#ifndef _LINUX_OF_DEVICE_H
|
|
#define _LINUX_OF_DEVICE_H
|
|
|
|
#ifdef CONFIG_OF_DEVICE
|
|
#include <linux/device.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/of.h>
|
|
#include <linux/mod_devicetable.h>
|
|
|
|
|
|
/*
|
|
* The of_device *was* a kind of "base class" that was a superset of
|
|
* struct device for use by devices attached to an OF node and probed
|
|
* using OF properties. However, the important bit of OF-style
|
|
* probing, namely the device node pointer, has been moved into the
|
|
* common struct device when CONFIG_OF is set to make OF-style probing
|
|
* available to all bus types. So now, just make of_device and
|
|
* platform_device equivalent so that current of_platform bus users
|
|
* can be transparently migrated over to using the platform bus.
|
|
*
|
|
* This line will go away once all references to of_device are removed
|
|
* from the kernel.
|
|
*/
|
|
#define of_device platform_device
|
|
|
|
#include <asm/of_device.h>
|
|
|
|
#define to_of_device(d) container_of(d, struct of_device, dev)
|
|
|
|
extern const struct of_device_id *of_match_device(
|
|
const struct of_device_id *matches, const 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(const struct device *dev,
|
|
const struct device_driver *drv)
|
|
{
|
|
return of_match_device(drv->of_match_table, dev) != NULL;
|
|
}
|
|
|
|
extern struct of_device *of_dev_get(struct of_device *dev);
|
|
extern void of_dev_put(struct of_device *dev);
|
|
|
|
extern int of_device_register(struct of_device *ofdev);
|
|
extern void of_device_unregister(struct of_device *ofdev);
|
|
extern void of_release_dev(struct device *dev);
|
|
|
|
static inline void of_device_free(struct of_device *dev)
|
|
{
|
|
of_release_dev(&dev->dev);
|
|
}
|
|
|
|
extern ssize_t of_device_get_modalias(struct device *dev,
|
|
char *str, ssize_t len);
|
|
|
|
extern int of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
|
|
|
|
|
|
#else /* CONFIG_OF_DEVICE */
|
|
|
|
static inline int of_driver_match_device(struct device *dev,
|
|
struct device_driver *drv)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif /* CONFIG_OF_DEVICE */
|
|
|
|
#endif /* _LINUX_OF_DEVICE_H */
|