include/linux/of_device.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _LINUX_OF_DEVICE_H
   3 #define _LINUX_OF_DEVICE_H
   4
   5 #include <linux/device/driver.h>
   6
   7 struct device;
   8 struct of_device_id;
   9 struct kobj_uevent_env;
  10
  11 #ifdef CONFIG_OF
  12 extern const struct of_device_id *of_match_device(
  13         const struct of_device_id *matches, const struct device *dev);
  14
  15 /**
  16  * of_driver_match_device - Tell if a driver's of_match_table matches a device.
  17  * @drv: the device_driver structure to test
  18  * @dev: the device structure to match against
  19  */
  20 static inline int of_driver_match_device(struct device *dev,
  21                                          const struct device_driver *drv)
  22 {
  23         return of_match_device(drv->of_match_table, dev) != NULL;
  24 }
  25
  26 extern ssize_t of_device_modalias(struct device *dev, char *str, ssize_t len);
  27
  28 extern void of_device_uevent(const struct device *dev, struct kobj_uevent_env *env);
  29 extern int of_device_uevent_modalias(const struct device *dev, struct kobj_uevent_env *env);
  30
  31 int of_dma_configure_id(struct device *dev,
  32                      struct device_node *np,
  33                      bool force_dma, const u32 *id);
  34 static inline int of_dma_configure(struct device *dev,
  35                                    struct device_node *np,
  36                                    bool force_dma)
  37 {
  38         return of_dma_configure_id(dev, np, force_dma, NULL);
  39 }
  40
  41 void of_device_make_bus_id(struct device *dev);
  42
  43 #else /* CONFIG_OF */
  44
  45 static inline int of_driver_match_device(struct device *dev,
  46                                          const struct device_driver *drv)
  47 {
  48         return 0;
  49 }
  50
  51 static inline void of_device_uevent(const struct device *dev,
  52                         struct kobj_uevent_env *env) { }
  53
  54 static inline int of_device_modalias(struct device *dev,
  55                                      char *str, ssize_t len)
  56 {
  57         return -ENODEV;
  58 }
  59
  60 static inline int of_device_uevent_modalias(const struct device *dev,
  61                                    struct kobj_uevent_env *env)
  62 {
  63         return -ENODEV;
  64 }
  65
  66 static inline const struct of_device_id *of_match_device(
  67                 const struct of_device_id *matches, const struct device *dev)
  68 {
  69         return NULL;
  70 }
  71
  72 static inline int of_dma_configure_id(struct device *dev,
  73                                       struct device_node *np,
  74                                       bool force_dma,
  75                                       const u32 *id)
  76 {
  77         return 0;
  78 }
  79 static inline int of_dma_configure(struct device *dev,
  80                                    struct device_node *np,
  81                                    bool force_dma)
  82 {
  83         return 0;
  84 }
  85
  86 static inline void of_device_make_bus_id(struct device *dev) {}
  87
  88 #endif /* CONFIG_OF */
  89
  90 #endif /* _LINUX_OF_DEVICE_H */