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
12struct device;
13
14#ifdef CONFIG_OF
15extern 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 */
23static 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
29extern struct platform_device *of_dev_get(struct platform_device *dev);
30extern void of_dev_put(struct platform_device *dev);
31
32extern int of_device_add(struct platform_device *pdev);
33extern int of_device_register(struct platform_device *ofdev);
34extern void of_device_unregister(struct platform_device *ofdev);
35
36extern const void *of_device_get_match_data(const struct device *dev);
37
38extern ssize_t of_device_modalias(struct device *dev, char *str, ssize_t len);
39extern int of_device_request_module(struct device *dev);
40
41extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
42extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);
43
44static inline void of_device_node_put(struct device *dev)
45{
46 of_node_put(dev->of_node);
47}
48
49static 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
58int of_dma_configure(struct device *dev,
59 struct device_node *np,
60 bool force_dma);
61#else /* CONFIG_OF */
62
63static inline int of_driver_match_device(struct device *dev,
64 const struct device_driver *drv)
65{
66 return 0;
67}
68
69static inline void of_device_uevent(struct device *dev,
70 struct kobj_uevent_env *env) { }
71
72static inline const void *of_device_get_match_data(const struct device *dev)
73{
74 return NULL;
75}
76
77static inline int of_device_modalias(struct device *dev,
78 char *str, ssize_t len)
79{
80 return -ENODEV;
81}
82
83static inline int of_device_request_module(struct device *dev)
84{
85 return -ENODEV;
86}
87
88static inline int of_device_uevent_modalias(struct device *dev,
89 struct kobj_uevent_env *env)
90{
91 return -ENODEV;
92}
93
94static inline void of_device_node_put(struct device *dev) { }
95
96static 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
104static inline struct device_node *of_cpu_device_node_get(int cpu)
105{
106 return NULL;
107}
108
109static 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 */
118