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
  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 const void *of_device_get_match_data(const struct device *dev);
  36
  37 extern ssize_t of_device_get_modalias(struct device *dev,
  38                                         char *str, ssize_t len);
  39 extern int of_device_request_module(struct device *dev);
  40
  41 extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
  42 extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);
  43
  44 static inline void of_device_node_put(struct device *dev)
  45 {
  46         of_node_put(dev->of_node);
  47 }
  48
  49 static inline struct device_node *of_cpu_device_node_get(int cpu)
  50 {
  51         struct device *cpu_dev;
  52         cpu_dev = get_cpu_device(cpu);
  53         if (!cpu_dev)
  54                 return NULL;
  55         return of_node_get(cpu_dev->of_node);
  56 }
  57
  58 void of_dma_configure(struct device *dev, struct device_node *np);
  59 #else /* CONFIG_OF */
  60
  61 static inline int of_driver_match_device(struct device *dev,
  62                                          const struct device_driver *drv)
  63 {
  64         return 0;
  65 }
  66
  67 static inline void of_device_uevent(struct device *dev,
  68                         struct kobj_uevent_env *env) { }
  69
  70 static inline const void *of_device_get_match_data(const struct device *dev)
  71 {
  72         return NULL;
  73 }
  74
  75 static inline int of_device_get_modalias(struct device *dev,
  76                                    char *str, ssize_t len)
  77 {
  78         return -ENODEV;
  79 }
  80
  81 static inline int of_device_request_module(struct device *dev)
  82 {
  83         return -ENODEV;
  84 }
  85
  86 static inline int of_device_uevent_modalias(struct device *dev,
  87                                    struct kobj_uevent_env *env)
  88 {
  89         return -ENODEV;
  90 }
  91
  92 static inline void of_device_node_put(struct device *dev) { }
  93
  94 static inline const struct of_device_id *__of_match_device(
  95                 const struct of_device_id *matches, const struct device *dev)
  96 {
  97         return NULL;
  98 }
  99 #define of_match_device(matches, dev)   \
 100         __of_match_device(of_match_ptr(matches), (dev))
 101
 102 static inline struct device_node *of_cpu_device_node_get(int cpu)
 103 {
 104         return NULL;
 105 }
 106 static inline void of_dma_configure(struct device *dev, struct device_node *np)
 107 {}
 108 #endif /* CONFIG_OF */
 109
 110 #endif /* _LINUX_OF_DEVICE_H */