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/of.h>
   9 #include <linux/mod_devicetable.h>
  10
  11 struct device;
  12
  13 extern const struct of_device_id *of_match_device(
  14         const struct of_device_id *matches, const struct device *dev);
  15 extern void of_device_make_bus_id(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  */
  22 static 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
  28 extern struct platform_device *of_dev_get(struct platform_device *dev);
  29 extern void of_dev_put(struct platform_device *dev);
  30
  31 extern int of_device_add(struct platform_device *pdev);
  32 extern int of_device_register(struct platform_device *ofdev);
  33 extern void of_device_unregister(struct platform_device *ofdev);
  34
  35 extern ssize_t of_device_get_modalias(struct device *dev,
  36                                         char *str, ssize_t len);
  37
  38 extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
  39 extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);
  40
  41 static inline void of_device_node_put(struct device *dev)
  42 {
  43         of_node_put(dev->of_node);
  44 }
  45
  46 #else /* CONFIG_OF_DEVICE */
  47
  48 static inline int of_driver_match_device(struct device *dev,
  49                                          struct device_driver *drv)
  50 {
  51         return 0;
  52 }
  53
  54 static inline void of_device_uevent(struct device *dev,
  55                         struct kobj_uevent_env *env) { }
  56
  57 static inline int of_device_uevent_modalias(struct device *dev,
  58                                    struct kobj_uevent_env *env)
  59 {
  60         return -ENODEV;
  61 }
  62
  63 static inline void of_device_node_put(struct device *dev) { }
  64
  65 static inline const struct of_device_id *of_match_device(
  66                 const struct of_device_id *matches, const struct device *dev)
  67 {
  68         return NULL;
  69 }
  70 #endif /* CONFIG_OF_DEVICE */
  71
  72 #endif /* _LINUX_OF_DEVICE_H */