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Greg Kroah-Hartmanb2441312017-11-01 15:07:57 +01001/* SPDX-License-Identifier: GPL-2.0 */
Stephen Rothwellf898f8d2007-05-01 16:49:51 +10002#ifndef _LINUX_OF_DEVICE_H
3#define _LINUX_OF_DEVICE_H
Stephen Rothwellf898f8d2007-05-01 16:49:51 +10004
Sudeep KarkadaNageshabd008602013-07-18 11:22:04 +01005#include <linux/cpu.h>
Grant Likelyf9f5a462010-06-09 22:22:17 -06006#include <linux/platform_device.h>
Grant Likely29596042010-06-29 11:15:54 -06007#include <linux/of_platform.h> /* temporary until merge */
Grant Likelyb505ff52010-06-18 11:09:59 -06008
Grant Likelyf9f5a462010-06-09 22:22:17 -06009#include <linux/of.h>
10#include <linux/mod_devicetable.h>
Stephen Rothwellf898f8d2007-05-01 16:49:51 +100011
Paul Gortmaker313162d2012-01-30 11:46:54 -050012struct device;
13
Rob Herringba166e92013-04-19 17:32:52 -050014#ifdef CONFIG_OF
Stephen Rothwellf898f8d2007-05-01 16:49:51 +100015extern const struct of_device_id *of_match_device(
Grant Likely44504b22010-04-13 16:13:22 -070016 const struct of_device_id *matches, const struct device *dev);
Stephen Rothwellf898f8d2007-05-01 16:49:51 +100017
Grant Likely8cec0e72010-06-08 07:48:17 -060018/**
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 */
Grant Likelyb8262912011-02-17 02:37:15 -070023static inline int of_driver_match_device(struct device *dev,
Grant Likely8cec0e72010-06-08 07:48:17 -060024 const struct device_driver *drv)
25{
Grant Likelyb1608d62011-05-18 11:19:24 -060026 return of_match_device(drv->of_match_table, dev) != NULL;
Grant Likely8cec0e72010-06-08 07:48:17 -060027}
28
Grant Likely7096d042010-10-20 11:45:13 -060029extern int of_device_add(struct platform_device *pdev);
Grant Likely94a0cb12010-07-22 13:59:23 -060030extern int of_device_register(struct platform_device *ofdev);
31extern void of_device_unregister(struct platform_device *ofdev);
Joachim Fenkesfec738d2007-09-26 19:44:12 +100032
Joachim Eastwood3386e0f2015-05-06 20:09:09 +020033extern const void *of_device_get_match_data(const struct device *dev);
34
Rob Herring0634c292017-03-22 09:16:27 -050035extern ssize_t of_device_modalias(struct device *dev, char *str, ssize_t len);
Stephen Boyd9c829c02016-12-28 14:56:47 -080036extern int of_device_request_module(struct device *dev);
Grant Likelydd27dcd2010-06-08 07:48:12 -060037
Grant Likely07d57a32012-02-01 11:22:22 -070038extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
39extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);
Grant Likelydd27dcd2010-06-08 07:48:12 -060040
Sudeep KarkadaNageshabd008602013-07-18 11:22:04 +010041static 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)
Sudeep Holla7467c9d92017-07-24 14:55:13 +010046 return of_get_cpu_node(cpu, NULL);
Sudeep KarkadaNageshabd008602013-07-18 11:22:04 +010047 return of_node_get(cpu_dev->of_node);
48}
49
Lorenzo Pieralisia081bd42020-06-19 09:20:08 +010050int of_dma_configure_id(struct device *dev,
Christoph Hellwig3d6ce862018-05-03 16:25:08 +020051 struct device_node *np,
Lorenzo Pieralisia081bd42020-06-19 09:20:08 +010052 bool force_dma, const u32 *id);
53static 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}
Rob Herringba166e92013-04-19 17:32:52 -050059#else /* CONFIG_OF */
Grant Likely8cec0e72010-06-08 07:48:17 -060060
61static inline int of_driver_match_device(struct device *dev,
Tomeu Vizoso35068ce82015-07-01 09:10:43 +020062 const struct device_driver *drv)
Grant Likely8cec0e72010-06-08 07:48:17 -060063{
64 return 0;
65}
66
Grant Likely07d57a32012-02-01 11:22:22 -070067static inline void of_device_uevent(struct device *dev,
68 struct kobj_uevent_env *env) { }
69
Joachim Eastwood3386e0f2015-05-06 20:09:09 +020070static inline const void *of_device_get_match_data(const struct device *dev)
71{
72 return NULL;
73}
74
Rob Herring0634c292017-03-22 09:16:27 -050075static inline int of_device_modalias(struct device *dev,
76 char *str, ssize_t len)
Zhang Ruib9f730672014-01-14 16:46:38 +080077{
78 return -ENODEV;
79}
80
Stephen Boyd9c829c02016-12-28 14:56:47 -080081static inline int of_device_request_module(struct device *dev)
82{
83 return -ENODEV;
84}
85
Grant Likely07d57a32012-02-01 11:22:22 -070086static inline int of_device_uevent_modalias(struct device *dev,
Grant Likelyeca39302010-06-08 07:48:21 -060087 struct kobj_uevent_env *env)
88{
89 return -ENODEV;
90}
91
Stephen Boydc52eef02021-01-22 19:44:28 -080092static inline const struct of_device_id *of_match_device(
Grant Likelyb1608d62011-05-18 11:19:24 -060093 const struct of_device_id *matches, const struct device *dev)
94{
95 return NULL;
96}
Sudeep KarkadaNageshabd008602013-07-18 11:22:04 +010097
98static inline struct device_node *of_cpu_device_node_get(int cpu)
99{
100 return NULL;
101}
Laurent Pinchart7b07cbe2017-04-10 16:51:02 +0530102
Lorenzo Pieralisia081bd42020-06-19 09:20:08 +0100103static inline int of_dma_configure_id(struct device *dev,
Thierry Reding40bfe7a2022-08-24 17:32:56 +0200104 struct device_node *np,
105 bool force_dma,
106 const u32 *id)
Lorenzo Pieralisia081bd42020-06-19 09:20:08 +0100107{
108 return 0;
109}
Christoph Hellwig3d6ce862018-05-03 16:25:08 +0200110static inline int of_dma_configure(struct device *dev,
111 struct device_node *np,
112 bool force_dma)
Laurent Pinchart7b07cbe2017-04-10 16:51:02 +0530113{
114 return 0;
115}
Rob Herringba166e92013-04-19 17:32:52 -0500116#endif /* CONFIG_OF */
Stephen Rothwell09e67ca2008-05-16 11:57:45 +1000117
Stephen Rothwellf898f8d2007-05-01 16:49:51 +1000118#endif /* _LINUX_OF_DEVICE_H */