of_device.h 2.3 KB

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