include/linux/of_device.h

   1 #ifndef _LINUX_OF_DEVICE_H
   2 #define _LINUX_OF_DEVICE_H
   3
   4 #ifdef CONFIG_OF_DEVICE
   5 #include <linux/device.h>
   6 #include <linux/platform_device.h>
   7 #include <linux/of.h>
   8 #include <linux/mod_devicetable.h>
   9
  10
  11 /*
  12  * The of_device *was* a kind of "base class" that was a superset of
  13  * struct device for use by devices attached to an OF node and probed
  14  * using OF properties.  However, the important bit of OF-style
  15  * probing, namely the device node pointer, has been moved into the
  16  * common struct device when CONFIG_OF is set to make OF-style probing
  17  * available to all bus types.  So now, just make of_device and
  18  * platform_device equivalent so that current of_platform bus users
  19  * can be transparently migrated over to using the platform bus.
  20  *
  21  * This line will go away once all references to of_device are removed
  22  * from the kernel.
  23  */
  24 #define of_device platform_device
  25
  26 #include <asm/of_device.h>
  27
  28 #define to_of_device(d) container_of(d, struct of_device, dev)
  29
  30 extern const struct of_device_id *of_match_device(
  31         const struct of_device_id *matches, const struct device *dev);
  32
  33 extern struct of_device *of_dev_get(struct of_device *dev);
  34 extern void of_dev_put(struct of_device *dev);
  35
  36 extern int of_device_register(struct of_device *ofdev);
  37 extern void of_device_unregister(struct of_device *ofdev);
  38 extern void of_release_dev(struct device *dev);
  39
  40 static inline void of_device_free(struct of_device *dev)
  41 {
  42         of_release_dev(&dev->dev);
  43 }
  44
  45 extern ssize_t of_device_get_modalias(struct of_device *ofdev,
  46                                         char *str, ssize_t len);
  47
  48 extern int of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
  49
  50
  51 #endif /* CONFIG_OF_DEVICE */
  52
  53 #endif /* _LINUX_OF_DEVICE_H */