mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-04 09:59:32 +00:00
![Grant Likely](/assets/img/avatar_default.png)
The current code allocates and manages platform_devices created from the device tree manually. It also uses an unsafe shortcut for allocating the platform_device and the resource table at the same time. (which I added in the last rework; sorry). This patch refactors the code to use platform_device_alloc() for allocating new devices. This reduces the amount of custom code implemented by of_platform, eliminates the unsafe alloc trick, and has the side benefit of letting the platform_bus code manage freeing the device data and resources when the device is freed. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: "David S. Miller" <davem@davemloft.net> Cc: Michal Simek <monstr@monstr.eu>
62 lines
1.7 KiB
C
62 lines
1.7 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/device.h>
|
|
#include <linux/of.h>
|
|
#include <linux/mod_devicetable.h>
|
|
|
|
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(const 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 int of_device_uevent(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 int of_device_uevent(struct device *dev,
|
|
struct kobj_uevent_env *env)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
static inline void of_device_node_put(struct device *dev) { }
|
|
|
|
#endif /* CONFIG_OF_DEVICE */
|
|
|
|
#endif /* _LINUX_OF_DEVICE_H */
|