Line data    Source code

       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 int of_device_add(struct platform_device *pdev);
      30             : extern int of_device_register(struct platform_device *ofdev);
      31             : extern void of_device_unregister(struct platform_device *ofdev);
      32             : 
      33             : extern const void *of_device_get_match_data(const struct device *dev);
      34             : 
      35             : extern ssize_t of_device_modalias(struct device *dev, char *str, ssize_t len);
      36             : extern int of_device_request_module(struct device *dev);
      37             : 
      38             : extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
      39             : extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);
      40             : 
      41             : static inline struct device_node *of_cpu_device_node_get(int cpu)
      42             : {
      43             :         struct device *cpu_dev;
      44             :         cpu_dev = get_cpu_device(cpu);
      45             :         if (!cpu_dev)
      46             :                 return of_get_cpu_node(cpu, NULL);
      47             :         return of_node_get(cpu_dev->of_node);
      48             : }
      49             : 
      50             : int of_dma_configure_id(struct device *dev,
      51             :                      struct device_node *np,
      52             :                      bool force_dma, const u32 *id);
      53             : static inline int of_dma_configure(struct device *dev,
      54             :                                    struct device_node *np,
      55             :                                    bool force_dma)
      56             : {
      57             :         return of_dma_configure_id(dev, np, force_dma, NULL);
      58             : }
      59             : #else /* CONFIG_OF */
      60             : 
      61          20 : static inline int of_driver_match_device(struct device *dev,
      62             :                                          const struct device_driver *drv)
      63             : {
      64          20 :         return 0;
      65             : }
      66             : 
      67         764 : static inline void of_device_uevent(struct device *dev,
      68         764 :                         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           0 : static inline int of_device_modalias(struct device *dev,
      76             :                                      char *str, ssize_t len)
      77             : {
      78           0 :         return -ENODEV;
      79             : }
      80             : 
      81             : static inline int of_device_request_module(struct device *dev)
      82             : {
      83             :         return -ENODEV;
      84             : }
      85             : 
      86          31 : static inline int of_device_uevent_modalias(struct device *dev,
      87             :                                    struct kobj_uevent_env *env)
      88             : {
      89          31 :         return -ENODEV;
      90             : }
      91             : 
      92             : static inline const struct of_device_id *of_match_device(
      93             :                 const struct of_device_id *matches, const struct device *dev)
      94             : {
      95             :         return NULL;
      96             : }
      97             : 
      98             : static inline struct device_node *of_cpu_device_node_get(int cpu)
      99             : {
     100             :         return NULL;
     101             : }
     102             : 
     103             : static inline int of_dma_configure_id(struct device *dev,
     104             :                                    struct device_node *np,
     105             :                                    bool force_dma)
     106             : {
     107             :         return 0;
     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 */