mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-22 04:03:58 +08:00
3386e0fa90
It's a common operation for device drivers to retrive the data
member from of_device_id struct in their probe function.
Most driver end up doing:
const struct of_device_id *match;
match = of_match_device(driver_of_match, &pdev->dev);
driver->data = match->data;
With the of_device_get_match_data helper function all this can
done in one go.
Signed-off-by: Joachim Eastwood <manabian@gmail.com>
[robh: add missing inline to dummmy declaration]
Signed-off-by: Rob Herring <robh@kernel.org>
106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
#ifndef _LINUX_OF_DEVICE_H
|
|
#define _LINUX_OF_DEVICE_H
|
|
|
|
#include <linux/cpu.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/of_platform.h> /* temporary until merge */
|
|
|
|
#include <linux/of.h>
|
|
#include <linux/mod_devicetable.h>
|
|
|
|
struct device;
|
|
|
|
#ifdef CONFIG_OF
|
|
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 const void *of_device_get_match_data(const struct device *dev);
|
|
|
|
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);
|
|
}
|
|
|
|
static inline struct device_node *of_cpu_device_node_get(int cpu)
|
|
{
|
|
struct device *cpu_dev;
|
|
cpu_dev = get_cpu_device(cpu);
|
|
if (!cpu_dev)
|
|
return NULL;
|
|
return of_node_get(cpu_dev->of_node);
|
|
}
|
|
|
|
void of_dma_configure(struct device *dev, struct device_node *np);
|
|
#else /* CONFIG_OF */
|
|
|
|
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 const void *of_device_get_match_data(const struct device *dev)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int of_device_get_modalias(struct device *dev,
|
|
char *str, ssize_t len)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
|
|
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;
|
|
}
|
|
#define of_match_device(matches, dev) \
|
|
__of_match_device(of_match_ptr(matches), (dev))
|
|
|
|
static inline struct device_node *of_cpu_device_node_get(int cpu)
|
|
{
|
|
return NULL;
|
|
}
|
|
static inline void of_dma_configure(struct device *dev, struct device_node *np)
|
|
{}
|
|
#endif /* CONFIG_OF */
|
|
|
|
#endif /* _LINUX_OF_DEVICE_H */
|