[linux-2.6-block.git] / include / linux / of_device.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_OF_DEVICE_H
#define _LINUX_OF_DEVICE_H

#include <linux/cpu.h>
#include <linux/platform_device.h>
#include <linux/of_platform.h> /* temporary until merge */

#include <linux/of.h>
#include <linux/mod_devicetable.h>

struct device;

#ifdef CONFIG_OF
extern const struct of_device_id *of_match_device(
	const struct of_device_id *matches, const struct device *dev);

/**
 * of_driver_match_device - Tell if a driver's of_match_table matches a device.
 * @drv: the device_driver structure to test
 * @dev: the device structure to match against
 */
static inline int of_driver_match_device(struct device *dev,
					 const struct device_driver *drv)
{
	return of_match_device(drv->of_match_table, dev) != NULL;
}

extern struct platform_device *of_dev_get(struct platform_device *dev);
extern void of_dev_put(struct platform_device *dev);

extern int of_device_add(struct platform_device *pdev);
extern int of_device_register(struct platform_device *ofdev);
extern void of_device_unregister(struct platform_device *ofdev);

extern const void *of_device_get_match_data(const struct device *dev);

extern ssize_t of_device_modalias(struct device *dev, char *str, ssize_t len);
extern int of_device_request_module(struct device *dev);

extern void of_device_uevent(struct device *dev, struct kobj_uevent_env *env);
extern int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env);

static inline void of_device_node_put(struct device *dev)
{
	of_node_put(dev->of_node);
}

static inline struct device_node *of_cpu_device_node_get(int cpu)
{
	struct device *cpu_dev;
	cpu_dev = get_cpu_device(cpu);
	if (!cpu_dev)
		return of_get_cpu_node(cpu, NULL);
	return of_node_get(cpu_dev->of_node);
}

int of_dma_configure(struct device *dev,
		     struct device_node *np,
		     bool force_dma);
void of_dma_deconfigure(struct device *dev);
#else /* CONFIG_OF */

static inline int of_driver_match_device(struct device *dev,
					 const struct device_driver *drv)
{
	return 0;
}

static inline void of_device_uevent(struct device *dev,
			struct kobj_uevent_env *env) { }

static inline const void *of_device_get_match_data(const struct device *dev)
{
	return NULL;
}

static inline int of_device_modalias(struct device *dev,
				     char *str, ssize_t len)
{
	return -ENODEV;
}

static inline int of_device_request_module(struct device *dev)
{
	return -ENODEV;
}

static inline int of_device_uevent_modalias(struct device *dev,
				   struct kobj_uevent_env *env)
{
	return -ENODEV;
}

static inline void of_device_node_put(struct device *dev) { }

static inline const struct of_device_id *__of_match_device(
		const struct of_device_id *matches, const struct device *dev)
{
	return NULL;
}
#define of_match_device(matches, dev)	\
	__of_match_device(of_match_ptr(matches), (dev))

static inline struct device_node *of_cpu_device_node_get(int cpu)
{
	return NULL;
}

static inline int of_dma_configure(struct device *dev,
				   struct device_node *np,
				   bool force_dma)
{
	return 0;
}
static inline void of_dma_deconfigure(struct device *dev)
{}
#endif /* CONFIG_OF */

#endif /* _LINUX_OF_DEVICE_H */
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
f898f8db SR	2	#ifndef _LINUX_OF_DEVICE_H
f898f8db SR	3	#define _LINUX_OF_DEVICE_H
f898f8db	4
bd00860e	5	#include <linux/cpu.h>
f9f5a466	6	#include <linux/platform_device.h>
29596042	7	#include <linux/of_platform.h> /* temporary until merge */
b505ff5e	8
f9f5a466 GL	9	#include <linux/of.h>
f9f5a466 GL	10	#include <linux/mod_devicetable.h>
f898f8db	11
313162d0 PG	12	struct device;
313162d0 PG	13
ba166e90	14	#ifdef CONFIG_OF
f898f8db	15	extern const struct of_device_id *of_match_device(
44504b2b	16	const struct of_device_id matches, const struct device dev);
f898f8db	17
8cec0e7b GL	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	*/
b826291c	23	static inline int of_driver_match_device(struct device *dev,
8cec0e7b GL	24	const struct device_driver *drv)
8cec0e7b GL	25	{
b1608d69	26	return of_match_device(drv->of_match_table, dev) != NULL;
8cec0e7b GL	27	}
8cec0e7b GL	28
94a0cb1f GL	29	extern struct platform_device of_dev_get(struct platform_device dev);
94a0cb1f GL	30	extern void of_dev_put(struct platform_device *dev);
f898f8db	31
7096d042	32	extern int of_device_add(struct platform_device *pdev);
94a0cb1f GL	33	extern int of_device_register(struct platform_device *ofdev);
94a0cb1f GL	34	extern void of_device_unregister(struct platform_device *ofdev);
fec738dd	35
3386e0fa JE	36	extern const void of_device_get_match_data(const struct device dev);
3386e0fa JE	37
0634c295	38	extern ssize_t of_device_modalias(struct device dev, char str, ssize_t len);
9c829c09	39	extern int of_device_request_module(struct device *dev);
dd27dcda	40
07d57a32 GL	41	extern void of_device_uevent(struct device dev, struct kobj_uevent_env env);
07d57a32 GL	42	extern int of_device_uevent_modalias(struct device dev, struct kobj_uevent_env env);
dd27dcda	43
7096d042 GL	44	static inline void of_device_node_put(struct device *dev)
	45	{
	46	of_node_put(dev->of_node);
	47	}
dd27dcda	48
bd00860e SK	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)
7467c9d9	54	return of_get_cpu_node(cpu, NULL);
bd00860e SK	55	return of_node_get(cpu_dev->of_node);
	56	}
	57
3d6ce86e CH	58	int of_dma_configure(struct device *dev,
	59	struct device_node *np,
	60	bool force_dma);
3f186677	61	void of_dma_deconfigure(struct device *dev);
ba166e90	62	#else /* CONFIG_OF */
8cec0e7b GL	63
8cec0e7b GL	64	static inline int of_driver_match_device(struct device *dev,
35068ce8	65	const struct device_driver *drv)
8cec0e7b GL	66	{
	67	return 0;
	68	}
	69
07d57a32 GL	70	static inline void of_device_uevent(struct device *dev,
	71	struct kobj_uevent_env *env) { }
	72
3386e0fa JE	73	static inline const void of_device_get_match_data(const struct device dev)
	74	{
	75	return NULL;
	76	}
	77
0634c295 RH	78	static inline int of_device_modalias(struct device *dev,
0634c295 RH	79	char *str, ssize_t len)
b9f73067 ZR	80	{
	81	return -ENODEV;
	82	}
	83
9c829c09 SB	84	static inline int of_device_request_module(struct device *dev)
	85	{
	86	return -ENODEV;
	87	}
	88
07d57a32	89	static inline int of_device_uevent_modalias(struct device *dev,
eca39301 GL	90	struct kobj_uevent_env *env)
	91	{
	92	return -ENODEV;
	93	}
	94
7096d042 GL	95	static inline void of_device_node_put(struct device *dev) { }
7096d042 GL	96
1db73ae3	97	static inline const struct of_device_id *__of_match_device(
b1608d69 GL	98	const struct of_device_id matches, const struct device dev)
	99	{
	100	return NULL;
	101	}
1db73ae3 GU	102	#define of_match_device(matches, dev) \
1db73ae3 GU	103	__of_match_device(of_match_ptr(matches), (dev))
bd00860e SK	104
	105	static inline struct device_node *of_cpu_device_node_get(int cpu)
	106	{
	107	return NULL;
	108	}
7b07cbef	109
3d6ce86e CH	110	static inline int of_dma_configure(struct device *dev,
	111	struct device_node *np,
	112	bool force_dma)
7b07cbef LP	113	{
	114	return 0;
	115	}
3f186677	116	static inline void of_dma_deconfigure(struct device *dev)
1f5c69aa	117	{}
ba166e90	118	#endif /* CONFIG_OF */
09e67ca2	119
f898f8db	120	#endif /* _LINUX_OF_DEVICE_H */