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);
  16
  17/**
  18 * of_driver_match_device - Tell if a driver's of_match_table matches a device.
  19 * @drv: the device_driver structure to test
  20 * @dev: the device structure to match against
  21 */
  22static inline int of_driver_match_device(struct device *dev,
  23                                         const struct device_driver *drv)
  24{
  25        return of_match_device(drv->of_match_table, dev) != NULL;
  26}
  27
  28extern struct platform_device *of_dev_get(struct platform_device *dev);
  29extern void of_dev_put(struct platform_device *dev);
  30
  31extern int of_device_add(struct platform_device *pdev);
  32extern int of_device_register(struct platform_device *ofdev);
  33extern void of_device_unregister(struct platform_device *ofdev);
  34
  35extern const void *of_device_get_match_data(const struct device *dev);
  36
  37extern ssize_t of_device_modalias(struct device *dev, char *str, ssize_t len);
  38extern int of_device_request_module(struct device *dev);
  39
  40extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
  41extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);
  42
  43static inline void of_device_node_put(struct device *dev)
  44{
  45        of_node_put(dev->of_node);
  46}
  47
  48static inline struct device_node *of_cpu_device_node_get(int cpu)
  49{
  50        struct device *cpu_dev;
  51        cpu_dev = get_cpu_device(cpu);
  52        if (!cpu_dev)
  53                return NULL;
  54        return of_node_get(cpu_dev->of_node);
  55}
  56
  57int of_dma_configure(struct device *dev, struct device_node *np);
  58void of_dma_deconfigure(struct device *dev);
  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_modalias(struct device *dev,
  76                                     char *str, ssize_t len)
  77{
  78        return -ENODEV;
  79}
  80
  81static inline int of_device_request_module(struct device *dev)
  82{
  83        return -ENODEV;
  84}
  85
  86static inline int of_device_uevent_modalias(struct device *dev,
  87                                   struct kobj_uevent_env *env)
  88{
  89        return -ENODEV;
  90}
  91
  92static inline void of_device_node_put(struct device *dev) { }
  93
  94static inline const struct of_device_id *__of_match_device(
  95                const struct of_device_id *matches, const struct device *dev)
  96{
  97        return NULL;
  98}
  99#define of_match_device(matches, dev)   \
 100        __of_match_device(of_match_ptr(matches), (dev))
 101
 102static inline struct device_node *of_cpu_device_node_get(int cpu)
 103{
 104        return NULL;
 105}
 106
 107static inline int of_dma_configure(struct device *dev, struct device_node *np)
 108{
 109        return 0;
 110}
 111static inline void of_dma_deconfigure(struct device *dev)
 112{}
 113#endif /* CONFIG_OF */
 114
 115#endif /* _LINUX_OF_DEVICE_H */
 116