root/include/linux/of_device.h

INCLUDED FROM

DEFINITIONS

1. of_driver_match_device
2. of_device_node_put
3. of_cpu_device_node_get
4. of_driver_match_device
5. of_device_uevent
6. of_device_get_match_data
7. of_device_modalias
8. of_device_request_module
9. of_device_uevent_modalias
10. of_device_node_put
11. __of_match_device
12. of_cpu_device_node_get
13. of_dma_configure

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _LINUX_OF_DEVICE_H
   3 #define _LINUX_OF_DEVICE_H
   4 
   5 #include <linux/cpu.h>
   6 #include <linux/platform_device.h>
   7 #include <linux/of_platform.h> /* temporary until merge */
   8 
   9 #include <linux/of.h>
  10 #include <linux/mod_devicetable.h>
  11 
  12 struct device;
  13 
  14 #ifdef CONFIG_OF
  15 extern const struct of_device_id *of_match_device(
  16         const struct of_device_id *matches, const 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 const void *of_device_get_match_data(const struct device *dev);
  37 
  38 extern ssize_t of_device_modalias(struct device *dev, 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 of_get_cpu_node(cpu, NULL);
  55         return of_node_get(cpu_dev->of_node);
  56 }
  57 
  58 int of_dma_configure(struct device *dev,
  59                      struct device_node *np,
  60                      bool force_dma);
  61 #else /* CONFIG_OF */
  62 
  63 static inline int of_driver_match_device(struct device *dev,
  64                                          const struct device_driver *drv)
  65 {
  66         return 0;
  67 }
  68 
  69 static inline void of_device_uevent(struct device *dev,
  70                         struct kobj_uevent_env *env) { }
  71 
  72 static inline const void *of_device_get_match_data(const struct device *dev)
  73 {
  74         return NULL;
  75 }
  76 
  77 static inline int of_device_modalias(struct device *dev,
  78                                      char *str, ssize_t len)
  79 {
  80         return -ENODEV;
  81 }
  82 
  83 static inline int of_device_request_module(struct device *dev)
  84 {
  85         return -ENODEV;
  86 }
  87 
  88 static inline int of_device_uevent_modalias(struct device *dev,
  89                                    struct kobj_uevent_env *env)
  90 {
  91         return -ENODEV;
  92 }
  93 
  94 static inline void of_device_node_put(struct device *dev) { }
  95 
  96 static inline const struct of_device_id *__of_match_device(
  97                 const struct of_device_id *matches, const struct device *dev)
  98 {
  99         return NULL;
 100 }
 101 #define of_match_device(matches, dev)   \
 102         __of_match_device(of_match_ptr(matches), (dev))
 103 
 104 static inline struct device_node *of_cpu_device_node_get(int cpu)
 105 {
 106         return NULL;
 107 }
 108 
 109 static inline int of_dma_configure(struct device *dev,
 110                                    struct device_node *np,
 111                                    bool force_dma)
 112 {
 113         return 0;
 114 }
 115 #endif /* CONFIG_OF */
 116 
 117 #endif /* _LINUX_OF_DEVICE_H */