include/linux/of_device.h

   1 #ifndef _LINUX_OF_DEVICE_H
   2 #define _LINUX_OF_DEVICE_H
   3
   4 #include <linux/platform_device.h>
   5 #include <linux/of_platform.h> /* temporary until merge */
   6
   7 #ifdef CONFIG_OF_DEVICE
   8 #include <linux/device.h>
   9 #include <linux/of.h>
  10 #include <linux/mod_devicetable.h>
  11
  12 extern const struct of_device_id *of_match_device(
  13         const struct of_device_id *matches, const struct device *dev);
  14 extern void of_device_make_bus_id(struct device *dev);
  15
  16 /**
  17  * of_driver_match_device - Tell if a driver's of_match_table matches a device.
  18  * @drv: the device_driver structure to test
  19  * @dev: the device structure to match against
  20  */
  21 static inline int of_driver_match_device(struct device *dev,
  22                                          const struct device_driver *drv)
  23 {
  24         return of_match_device(drv->of_match_table, dev) != NULL;
  25 }
  26
  27 extern struct platform_device *of_dev_get(struct platform_device *dev);
  28 extern void of_dev_put(struct platform_device *dev);
  29
  30 extern int of_device_add(struct platform_device *pdev);
  31 extern int of_device_register(struct platform_device *ofdev);
  32 extern void of_device_unregister(struct platform_device *ofdev);
  33
  34 extern ssize_t of_device_get_modalias(struct device *dev,
  35                                         char *str, ssize_t len);
  36
  37 extern int of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
  38
  39 static inline void of_device_node_put(struct device *dev)
  40 {
  41         of_node_put(dev->of_node);
  42 }
  43
  44 #else /* CONFIG_OF_DEVICE */
  45
  46 static inline int of_driver_match_device(struct device *dev,
  47                                          struct device_driver *drv)
  48 {
  49         return 0;
  50 }
  51
  52 static inline int of_device_uevent(struct device *dev,
  53                                    struct kobj_uevent_env *env)
  54 {
  55         return -ENODEV;
  56 }
  57
  58 static inline void of_device_node_put(struct device *dev) { }
  59
  60 static inline const struct of_device_id *of_match_device(
  61                 const struct of_device_id *matches, const struct device *dev)
  62 {
  63         return NULL;
  64 }
  65 #endif /* CONFIG_OF_DEVICE */
  66
  67 #endif /* _LINUX_OF_DEVICE_H */