LXR linux/include/linux/of

   1#ifndef _LINUX_OF_DEVICE_H
   2#define _LINUX_OF_DEVICE_H
   3
   4#include <linux/cpu.h>
   5#include <linux/platform_device.h>
   6#include <linux/of_platform.h> /* temporary until merge */
   7
   8#include <linux/of.h>
   9#include <linux/mod_devicetable.h>
  10
  11struct device;
  12
  13#ifdef CONFIG_OF
  14extern const struct of_device_id *of_match_device(
  15        const struct of_device_id *matches, const struct device *dev);
  16extern void of_device_make_bus_id(struct device *dev);
  17
  18/**
  19 * of_driver_match_device - Tell if a driver's of_match_table matches a device.
  20 * @drv: the device_driver structure to test
  21 * @dev: the device structure to match against
  22 */
  23static inline int of_driver_match_device(struct device *dev,
  24                                         const struct device_driver *drv)
  25{
  26        return of_match_device(drv->of_match_table, dev) != NULL;
  27}
  28
  29extern struct platform_device *of_dev_get(struct platform_device *dev);
  30extern void of_dev_put(struct platform_device *dev);
  31
  32extern int of_device_add(struct platform_device *pdev);
  33extern int of_device_register(struct platform_device *ofdev);
  34extern void of_device_unregister(struct platform_device *ofdev);
  35
  36extern const void *of_device_get_match_data(const struct device *dev);
  37
  38extern ssize_t of_device_get_modalias(struct device *dev,
  39                                        char *str, ssize_t len);
  40
  41extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
  42extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);
  43
  44static inline void of_device_node_put(struct device *dev)
  45{
  46        of_node_put(dev->of_node);
  47}
  48
  49static inline struct device_node *of_cpu_device_node_get(int cpu)
  50{
  51        struct device *cpu_dev;
  52        cpu_dev = get_cpu_device(cpu);
  53        if (!cpu_dev)
  54                return NULL;
  55        return of_node_get(cpu_dev->of_node);
  56}
  57
  58void of_dma_configure(struct device *dev, struct device_node *np);
  59#else /* CONFIG_OF */
  60
  61static inline int of_driver_match_device(struct device *dev,
  62                                         const struct device_driver *drv)
  63{
  64        return 0;
  65}
  66
  67static inline void of_device_uevent(struct device *dev,
  68                        struct kobj_uevent_env *env) { }
  69
  70static inline const void *of_device_get_match_data(const struct device *dev)
  71{
  72        return NULL;
  73}
  74
  75static inline int of_device_get_modalias(struct device *dev,
  76                                   char *str, ssize_t len)
  77{
  78        return -ENODEV;
  79}
  80
  81static inline int of_device_uevent_modalias(struct device *dev,
  82                                   struct kobj_uevent_env *env)
  83{
  84        return -ENODEV;
  85}
  86
  87static inline void of_device_node_put(struct device *dev) { }
  88
  89static inline const struct of_device_id *__of_match_device(
  90                const struct of_device_id *matches, const struct device *dev)
  91{
  92        return NULL;
  93}
  94#define of_match_device(matches, dev)   \
  95        __of_match_device(of_match_ptr(matches), (dev))
  96
  97static inline struct device_node *of_cpu_device_node_get(int cpu)
  98{
  99        return NULL;
 100}
 101static inline void of_dma_configure(struct device *dev, struct device_node *np)
 102{}
 103#endif /* CONFIG_OF */
 104
 105#endif /* _LINUX_OF_DEVICE_H */
 106