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         dev->of_match = of_match_device(drv->of_match_table, dev);
  25         return dev->of_match != 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 int of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
  39
  40 static inline void of_device_node_put(struct device *dev)
  41 {
  42         of_node_put(dev->of_node);
  43 }
  44
  45 #else /* CONFIG_OF_DEVICE */
  46
  47 static inline int of_driver_match_device(struct device *dev,
  48                                          struct device_driver *drv)
  49 {
  50         return 0;
  51 }
  52
  53 static inline int of_device_uevent(struct device *dev,
  54                                    struct kobj_uevent_env *env)
  55 {
  56         return -ENODEV;
  57 }
  58
  59 static inline void of_device_node_put(struct device *dev) { }
  60
  61 #endif /* CONFIG_OF_DEVICE */
  62
  63 #endif /* _LINUX_OF_DEVICE_H */