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 ssize_t of_device_get_modalias(struct device *dev,
  37                                        char *str, ssize_t len);
  38
  39extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
  40extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);
  41
  42static inline void of_device_node_put(struct device *dev)
  43{
  44        of_node_put(dev->of_node);
  45}
  46
  47static inline struct device_node *of_cpu_device_node_get(int cpu)
  48{
  49        struct device *cpu_dev;
  50        cpu_dev = get_cpu_device(cpu);
  51        if (!cpu_dev)
  52                return NULL;
  53        return of_node_get(cpu_dev->of_node);
  54}
  55
  56void of_dma_configure(struct device *dev, struct device_node *np);
  57#else /* CONFIG_OF */
  58
  59static inline int of_driver_match_device(struct device *dev,
  60                                         struct device_driver *drv)
  61{
  62        return 0;
  63}
  64
  65static inline void of_device_uevent(struct device *dev,
  66                        struct kobj_uevent_env *env) { }
  67
  68static inline int of_device_get_modalias(struct device *dev,
  69                                   char *str, ssize_t len)
  70{
  71        return -ENODEV;
  72}
  73
  74static inline int of_device_uevent_modalias(struct device *dev,
  75                                   struct kobj_uevent_env *env)
  76{
  77        return -ENODEV;
  78}
  79
  80static inline void of_device_node_put(struct device *dev) { }
  81
  82static inline const struct of_device_id *__of_match_device(
  83                const struct of_device_id *matches, const struct device *dev)
  84{
  85        return NULL;
  86}
  87#define of_match_device(matches, dev)   \
  88        __of_match_device(of_match_ptr(matches), (dev))
  89
  90static inline struct device_node *of_cpu_device_node_get(int cpu)
  91{
  92        return NULL;
  93}
  94static inline void of_dma_configure(struct device *dev, struct device_node *np)
  95{}
  96#endif /* CONFIG_OF */
  97
  98#endif /* _LINUX_OF_DEVICE_H */
  99