include/linux/of_device.h

   1 #ifndef _LINUX_OF_DEVICE_H
   2 #define _LINUX_OF_DEVICE_H
   3
   4 #include <linux/cpu.h>
   5 #include <linux/platform_device.h>
   6 #include <linux/of_platform.h> /* temporary until merge */
   7
   8 #include <linux/of.h>
   9 #include <linux/mod_devicetable.h>
  10
  11 struct device;
  12
  13 #ifdef CONFIG_OF
  14 extern const struct of_device_id *of_match_device(
  15         const struct of_device_id *matches, const struct device *dev);
  16 extern void of_device_make_bus_id(struct device *dev);
  17
  18 /**
  19  * of_driver_match_device - Tell if a driver's of_match_table matches a device.
  20  * @drv: the device_driver structure to test
  21  * @dev: the device structure to match against
  22  */
  23 static inline int of_driver_match_device(struct device *dev,
  24                                          const struct device_driver *drv)
  25 {
  26         return of_match_device(drv->of_match_table, dev) != NULL;
  27 }
  28
  29 extern struct platform_device *of_dev_get(struct platform_device *dev);
  30 extern void of_dev_put(struct platform_device *dev);
  31
  32 extern int of_device_add(struct platform_device *pdev);
  33 extern int of_device_register(struct platform_device *ofdev);
  34 extern void of_device_unregister(struct platform_device *ofdev);
  35
  36 extern ssize_t of_device_get_modalias(struct device *dev,
  37                                         char *str, ssize_t len);
  38
  39 extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
  40 extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);
  41
  42 static inline void of_device_node_put(struct device *dev)
  43 {
  44         of_node_put(dev->of_node);
  45 }
  46
  47 static inline struct device_node *of_cpu_device_node_get(int cpu)
  48 {
  49         struct device *cpu_dev;
  50         cpu_dev = get_cpu_device(cpu);
  51         if (!cpu_dev)
  52                 return NULL;
  53         return of_node_get(cpu_dev->of_node);
  54 }
  55
  56 void of_dma_configure(struct device *dev, struct device_node *np);
  57 #else /* CONFIG_OF */
  58
  59 static inline int of_driver_match_device(struct device *dev,
  60                                          struct device_driver *drv)
  61 {
  62         return 0;
  63 }
  64
  65 static inline void of_device_uevent(struct device *dev,
  66                         struct kobj_uevent_env *env) { }
  67
  68 static inline int of_device_get_modalias(struct device *dev,
  69                                    char *str, ssize_t len)
  70 {
  71         return -ENODEV;
  72 }
  73
  74 static inline int of_device_uevent_modalias(struct device *dev,
  75                                    struct kobj_uevent_env *env)
  76 {
  77         return -ENODEV;
  78 }
  79
  80 static inline void of_device_node_put(struct device *dev) { }
  81
  82 static inline const struct of_device_id *__of_match_device(
  83                 const struct of_device_id *matches, const struct device *dev)
  84 {
  85         return NULL;
  86 }
  87 #define of_match_device(matches, dev)   \
  88         __of_match_device(of_match_ptr(matches), (dev))
  89
  90 static inline struct device_node *of_cpu_device_node_get(int cpu)
  91 {
  92         return NULL;
  93 }
  94 static inline void of_dma_configure(struct device *dev, struct device_node *np)
  95 {}
  96 #endif /* CONFIG_OF */
  97
  98 #endif /* _LINUX_OF_DEVICE_H */