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

/*
 * platform_device.h - generic, centralized driver model
 *
 * Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
 *
 * This file is released under the GPLv2
 *
 * See Documentation/driver-model/ for more information.
 */

#ifndef _PLATFORM_DEVICE_H_
#define _PLATFORM_DEVICE_H_

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

#define PLATFORM_DEVID_NONE	(-1)
#define PLATFORM_DEVID_AUTO	(-2)

struct mfd_cell;

struct platform_device {
	const char	*name;
	int		id;
	bool		id_auto;
	struct device	dev;
	u32		num_resources;
	struct resource	*resource;

	const struct platform_device_id	*id_entry;
	char *driver_override; /* Driver name to force a match */

	/* MFD cell pointer */
	struct mfd_cell *mfd_cell;

	/* arch specific additions */
	struct pdev_archdata	archdata;
};

#define platform_get_device_id(pdev)	((pdev)->id_entry)

#define to_platform_device(x) container_of((x), struct platform_device, dev)

extern int platform_device_register(struct platform_device *);
extern void platform_device_unregister(struct platform_device *);

extern struct bus_type platform_bus_type;
extern struct device platform_bus;

extern void arch_setup_pdev_archdata(struct platform_device *);
extern struct resource *platform_get_resource(struct platform_device *,
					      unsigned int, unsigned int);
extern int platform_get_irq(struct platform_device *, unsigned int);
extern struct resource *platform_get_resource_byname(struct platform_device *,
						     unsigned int,
						     const char *);
extern int platform_get_irq_byname(struct platform_device *, const char *);
extern int platform_add_devices(struct platform_device **, int);

struct platform_device_info {
		struct device *parent;
		struct fwnode_handle *fwnode;

		const char *name;
		int id;

		const struct resource *res;
		unsigned int num_res;

		const void *data;
		size_t size_data;
		u64 dma_mask;
};
extern struct platform_device *platform_device_register_full(
		const struct platform_device_info *pdevinfo);

/**
 * platform_device_register_resndata - add a platform-level device with
 * resources and platform-specific data
 *
 * @parent: parent device for the device we're adding
 * @name: base name of the device we're adding
 * @id: instance id
 * @res: set of resources that needs to be allocated for the device
 * @num: number of resources
 * @data: platform specific data for this platform device
 * @size: size of platform specific data
 *
 * Returns &struct platform_device pointer on success, or ERR_PTR() on error.
 */
static inline struct platform_device *platform_device_register_resndata(
		struct device *parent, const char *name, int id,
		const struct resource *res, unsigned int num,
		const void *data, size_t size) {

	struct platform_device_info pdevinfo = {
		.parent = parent,
		.name = name,
		.id = id,
		.res = res,
		.num_res = num,
		.data = data,
		.size_data = size,
		.dma_mask = 0,
	};

	return platform_device_register_full(&pdevinfo);
}

/**
 * platform_device_register_simple - add a platform-level device and its resources
 * @name: base name of the device we're adding
 * @id: instance id
 * @res: set of resources that needs to be allocated for the device
 * @num: number of resources
 *
 * This function creates a simple platform device that requires minimal
 * resource and memory management. Canned release function freeing memory
 * allocated for the device allows drivers using such devices to be
 * unloaded without waiting for the last reference to the device to be
 * dropped.
 *
 * This interface is primarily intended for use with legacy drivers which
 * probe hardware directly.  Because such drivers create sysfs device nodes
 * themselves, rather than letting system infrastructure handle such device
 * enumeration tasks, they don't fully conform to the Linux driver model.
 * In particular, when such drivers are built as modules, they can't be
 * "hotplugged".
 *
 * Returns &struct platform_device pointer on success, or ERR_PTR() on error.
 */
static inline struct platform_device *platform_device_register_simple(
		const char *name, int id,
		const struct resource *res, unsigned int num)
{
	return platform_device_register_resndata(NULL, name, id,
			res, num, NULL, 0);
}

/**
 * platform_device_register_data - add a platform-level device with platform-specific data
 * @parent: parent device for the device we're adding
 * @name: base name of the device we're adding
 * @id: instance id
 * @data: platform specific data for this platform device
 * @size: size of platform specific data
 *
 * This function creates a simple platform device that requires minimal
 * resource and memory management. Canned release function freeing memory
 * allocated for the device allows drivers using such devices to be
 * unloaded without waiting for the last reference to the device to be
 * dropped.
 *
 * Returns &struct platform_device pointer on success, or ERR_PTR() on error.
 */
static inline struct platform_device *platform_device_register_data(
		struct device *parent, const char *name, int id,
		const void *data, size_t size)
{
	return platform_device_register_resndata(parent, name, id,
			NULL, 0, data, size);
}

extern struct platform_device *platform_device_alloc(const char *name, int id);
extern int platform_device_add_resources(struct platform_device *pdev,
					 const struct resource *res,
					 unsigned int num);
extern int platform_device_add_data(struct platform_device *pdev,
				    const void *data, size_t size);
extern int platform_device_add(struct platform_device *pdev);
extern void platform_device_del(struct platform_device *pdev);
extern void platform_device_put(struct platform_device *pdev);

struct platform_driver {
	int (*probe)(struct platform_device *);
	int (*remove)(struct platform_device *);
	void (*shutdown)(struct platform_device *);
	int (*suspend)(struct platform_device *, pm_message_t state);
	int (*resume)(struct platform_device *);
	struct device_driver driver;
	const struct platform_device_id *id_table;
	bool prevent_deferred_probe;
};

#define to_platform_driver(drv)	(container_of((drv), struct platform_driver, \
				 driver))

/*
 * use a macro to avoid include chaining to get THIS_MODULE
 */
#define platform_driver_register(drv) \
	__platform_driver_register(drv, THIS_MODULE)
extern int __platform_driver_register(struct platform_driver *,
					struct module *);
extern void platform_driver_unregister(struct platform_driver *);

/* non-hotpluggable platform devices may use this so that probe() and
 * its support may live in __init sections, conserving runtime memory.
 */
#define platform_driver_probe(drv, probe) \
	__platform_driver_probe(drv, probe, THIS_MODULE)
extern int __platform_driver_probe(struct platform_driver *driver,
		int (*probe)(struct platform_device *), struct module *module);

static inline void *platform_get_drvdata(const struct platform_device *pdev)
{
	return dev_get_drvdata(&pdev->dev);
}

static inline void platform_set_drvdata(struct platform_device *pdev,
					void *data)
{
	dev_set_drvdata(&pdev->dev, data);
}

/* module_platform_driver() - Helper macro for drivers that don't do
 * anything special in module init/exit.  This eliminates a lot of
 * boilerplate.  Each module may only use this macro once, and
 * calling it replaces module_init() and module_exit()
 */
#define module_platform_driver(__platform_driver) \
	module_driver(__platform_driver, platform_driver_register, \
			platform_driver_unregister)

/* builtin_platform_driver() - Helper macro for builtin drivers that
 * don't do anything special in driver init.  This eliminates some
 * boilerplate.  Each driver may only use this macro once, and
 * calling it replaces device_initcall().  Note this is meant to be
 * a parallel of module_platform_driver() above, but w/o _exit stuff.
 */
#define builtin_platform_driver(__platform_driver) \
	builtin_driver(__platform_driver, platform_driver_register)

/* module_platform_driver_probe() - Helper macro for drivers that don't do
 * anything special in module init/exit.  This eliminates a lot of
 * boilerplate.  Each module may only use this macro once, and
 * calling it replaces module_init() and module_exit()
 */
#define module_platform_driver_probe(__platform_driver, __platform_probe) \
static int __init __platform_driver##_init(void) \
{ \
	return platform_driver_probe(&(__platform_driver), \
				     __platform_probe);    \
} \
module_init(__platform_driver##_init); \
static void __exit __platform_driver##_exit(void) \
{ \
	platform_driver_unregister(&(__platform_driver)); \
} \
module_exit(__platform_driver##_exit);

/* builtin_platform_driver_probe() - Helper macro for drivers that don't do
 * anything special in device init.  This eliminates some boilerplate.  Each
 * driver may only use this macro once, and using it replaces device_initcall.
 * This is meant to be a parallel of module_platform_driver_probe above, but
 * without the __exit parts.
 */
#define builtin_platform_driver_probe(__platform_driver, __platform_probe) \
static int __init __platform_driver##_init(void) \
{ \
	return platform_driver_probe(&(__platform_driver), \
				     __platform_probe);    \
} \
device_initcall(__platform_driver##_init); \

#define platform_create_bundle(driver, probe, res, n_res, data, size) \
	__platform_create_bundle(driver, probe, res, n_res, data, size, THIS_MODULE)
extern struct platform_device *__platform_create_bundle(
	struct platform_driver *driver, int (*probe)(struct platform_device *),
	struct resource *res, unsigned int n_res,
	const void *data, size_t size, struct module *module);

/* early platform driver interface */
struct early_platform_driver {
	const char *class_str;
	struct platform_driver *pdrv;
	struct list_head list;
	int requested_id;
	char *buffer;
	int bufsize;
};

#define EARLY_PLATFORM_ID_UNSET -2
#define EARLY_PLATFORM_ID_ERROR -3

extern int early_platform_driver_register(struct early_platform_driver *epdrv,
					  char *buf);
extern void early_platform_add_devices(struct platform_device **devs, int num);

static inline int is_early_platform_device(struct platform_device *pdev)
{
	return !pdev->dev.driver;
}

extern void early_platform_driver_register_all(char *class_str);
extern int early_platform_driver_probe(char *class_str,
				       int nr_probe, int user_only);
extern void early_platform_cleanup(void);

#define early_platform_init(class_string, platdrv)		\
	early_platform_init_buffer(class_string, platdrv, NULL, 0)

#ifndef MODULE
#define early_platform_init_buffer(class_string, platdrv, buf, bufsiz)	\
static __initdata struct early_platform_driver early_driver = {		\
	.class_str = class_string,					\
	.buffer = buf,							\
	.bufsize = bufsiz,						\
	.pdrv = platdrv,						\
	.requested_id = EARLY_PLATFORM_ID_UNSET,			\
};									\
static int __init early_platform_driver_setup_func(char *buffer)	\
{									\
	return early_platform_driver_register(&early_driver, buffer);	\
}									\
early_param(class_string, early_platform_driver_setup_func)
#else /* MODULE */
#define early_platform_init_buffer(class_string, platdrv, buf, bufsiz)	\
static inline char *early_platform_driver_setup_func(void)		\
{									\
	return bufsiz ? buf : NULL;					\
}
#endif /* MODULE */

#ifdef CONFIG_SUSPEND
extern int platform_pm_suspend(struct device *dev);
extern int platform_pm_resume(struct device *dev);
#else
#define platform_pm_suspend		NULL
#define platform_pm_resume		NULL
#endif

#ifdef CONFIG_HIBERNATE_CALLBACKS
extern int platform_pm_freeze(struct device *dev);
extern int platform_pm_thaw(struct device *dev);
extern int platform_pm_poweroff(struct device *dev);
extern int platform_pm_restore(struct device *dev);
#else
#define platform_pm_freeze		NULL
#define platform_pm_thaw		NULL
#define platform_pm_poweroff		NULL
#define platform_pm_restore		NULL
#endif

#ifdef CONFIG_PM_SLEEP
#define USE_PLATFORM_PM_SLEEP_OPS \
	.suspend = platform_pm_suspend, \
	.resume = platform_pm_resume, \
	.freeze = platform_pm_freeze, \
	.thaw = platform_pm_thaw, \
	.poweroff = platform_pm_poweroff, \
	.restore = platform_pm_restore,
#else
#define USE_PLATFORM_PM_SLEEP_OPS
#endif

#endif /* _PLATFORM_DEVICE_H_ */
Commit	Line	Data
bbbf508d RK	1	/*
	2	* platform_device.h - generic, centralized driver model
	3	*
	4	* Copyright (c) 2001-2003 Patrick Mochel <mochel@osdl.org>
	5	*
	6	* This file is released under the GPLv2
	7	*
	8	* See Documentation/driver-model/ for more information.
	9	*/
	10
	11	#ifndef _PLATFORM_DEVICE_H_
	12	#define _PLATFORM_DEVICE_H_
	13
	14	#include <linux/device.h>
57fee4a5	15	#include <linux/mod_devicetable.h>
bbbf508d	16
689ae231 JD	17	#define PLATFORM_DEVID_NONE (-1)
	18	#define PLATFORM_DEVID_AUTO (-2)
	19
e710d7d5 SO	20	struct mfd_cell;
e710d7d5 SO	21
bbbf508d	22	struct platform_device {
6ae07f27	23	const char *name;
1359555e	24	int id;
689ae231	25	bool id_auto;
bbbf508d RK	26	struct device dev;
bbbf508d RK	27	u32 num_resources;
6ae07f27	28	struct resource *resource;
57fee4a5	29
3d03ba4d	30	const struct platform_device_id *id_entry;
3d713e0e	31	char driver_override; / Driver name to force a match */
d7aacadd	32
e710d7d5 SO	33	/* MFD cell pointer */
	34	struct mfd_cell *mfd_cell;
	35
d7aacadd MD	36	/* arch specific additions */
d7aacadd MD	37	struct pdev_archdata archdata;
bbbf508d RK	38	};
bbbf508d RK	39
57fee4a5 EM	40	#define platform_get_device_id(pdev) ((pdev)->id_entry)
57fee4a5 EM	41
bbbf508d RK	42	#define to_platform_device(x) container_of((x), struct platform_device, dev)
	43
	44	extern int platform_device_register(struct platform_device *);
	45	extern void platform_device_unregister(struct platform_device *);
	46
	47	extern struct bus_type platform_bus_type;
	48	extern struct device platform_bus;
	49
a77ce816	50	extern void arch_setup_pdev_archdata(struct platform_device *);
6ae07f27 FP	51	extern struct resource platform_get_resource(struct platform_device ,
6ae07f27 FP	52	unsigned int, unsigned int);
bbbf508d	53	extern int platform_get_irq(struct platform_device *, unsigned int);
6ae07f27 FP	54	extern struct resource platform_get_resource_byname(struct platform_device ,
	55	unsigned int,
	56	const char *);
c0afe7ba	57	extern int platform_get_irq_byname(struct platform_device , const char );
bbbf508d RK	58	extern int platform_add_devices(struct platform_device **, int);
bbbf508d RK	59
01dcc60a UKK	60	struct platform_device_info {
01dcc60a UKK	61	struct device *parent;
ce793486	62	struct fwnode_handle *fwnode;
01dcc60a UKK	63
	64	const char *name;
	65	int id;
	66
	67	const struct resource *res;
	68	unsigned int num_res;
	69
	70	const void *data;
	71	size_t size_data;
	72	u64 dma_mask;
	73	};
	74	extern struct platform_device *platform_device_register_full(
5a3072be	75	const struct platform_device_info *pdevinfo);
01dcc60a UKK	76
	77	/**
	78	* platform_device_register_resndata - add a platform-level device with
	79	* resources and platform-specific data
	80	*
	81	* @parent: parent device for the device we're adding
	82	* @name: base name of the device we're adding
	83	* @id: instance id
	84	* @res: set of resources that needs to be allocated for the device
	85	* @num: number of resources
	86	* @data: platform specific data for this platform device
	87	* @size: size of platform specific data
	88	*
	89	* Returns &struct platform_device pointer on success, or ERR_PTR() on error.
	90	*/
	91	static inline struct platform_device *platform_device_register_resndata(
44f28bde UKK	92	struct device parent, const char name, int id,
44f28bde UKK	93	const struct resource *res, unsigned int num,
01dcc60a UKK	94	const void *data, size_t size) {
	95
	96	struct platform_device_info pdevinfo = {
	97	.parent = parent,
	98	.name = name,
	99	.id = id,
	100	.res = res,
	101	.num_res = num,
	102	.data = data,
	103	.size_data = size,
	104	.dma_mask = 0,
	105	};
	106
	107	return platform_device_register_full(&pdevinfo);
	108	}
44f28bde UKK	109
	110	/**
	111	* platform_device_register_simple - add a platform-level device and its resources
	112	* @name: base name of the device we're adding
	113	* @id: instance id
	114	* @res: set of resources that needs to be allocated for the device
	115	* @num: number of resources
	116	*
	117	* This function creates a simple platform device that requires minimal
	118	* resource and memory management. Canned release function freeing memory
	119	* allocated for the device allows drivers using such devices to be
	120	* unloaded without waiting for the last reference to the device to be
	121	* dropped.
	122	*
	123	* This interface is primarily intended for use with legacy drivers which
	124	* probe hardware directly. Because such drivers create sysfs device nodes
	125	* themselves, rather than letting system infrastructure handle such device
	126	* enumeration tasks, they don't fully conform to the Linux driver model.
	127	* In particular, when such drivers are built as modules, they can't be
	128	* "hotplugged".
	129	*
	130	* Returns &struct platform_device pointer on success, or ERR_PTR() on error.
	131	*/
	132	static inline struct platform_device *platform_device_register_simple(
	133	const char *name, int id,
	134	const struct resource *res, unsigned int num)
	135	{
	136	return platform_device_register_resndata(NULL, name, id,
	137	res, num, NULL, 0);
	138	}
	139
	140	/**
	141	* platform_device_register_data - add a platform-level device with platform-specific data
	142	* @parent: parent device for the device we're adding
	143	* @name: base name of the device we're adding
	144	* @id: instance id
	145	* @data: platform specific data for this platform device
	146	* @size: size of platform specific data
	147	*
	148	* This function creates a simple platform device that requires minimal
	149	* resource and memory management. Canned release function freeing memory
	150	* allocated for the device allows drivers using such devices to be
	151	* unloaded without waiting for the last reference to the device to be
	152	* dropped.
	153	*
	154	* Returns &struct platform_device pointer on success, or ERR_PTR() on error.
	155	*/
	156	static inline struct platform_device *platform_device_register_data(
	157	struct device parent, const char name, int id,
	158	const void *data, size_t size)
	159	{
	160	return platform_device_register_resndata(parent, name, id,
	161	NULL, 0, data, size);
	162	}
bbbf508d	163
1359555e	164	extern struct platform_device platform_device_alloc(const char name, int id);
0b7f1a7e GU	165	extern int platform_device_add_resources(struct platform_device *pdev,
	166	const struct resource *res,
	167	unsigned int num);
6ae07f27 FP	168	extern int platform_device_add_data(struct platform_device *pdev,
6ae07f27 FP	169	const void *data, size_t size);
37c12e74	170	extern int platform_device_add(struct platform_device *pdev);
93ce3061	171	extern void platform_device_del(struct platform_device *pdev);
37c12e74 RK	172	extern void platform_device_put(struct platform_device *pdev);
37c12e74 RK	173
00d3dcdd RK	174	struct platform_driver {
	175	int (probe)(struct platform_device );
	176	int (remove)(struct platform_device );
	177	void (shutdown)(struct platform_device );
	178	int (suspend)(struct platform_device , pm_message_t state);
	179	int (resume)(struct platform_device );
	180	struct device_driver driver;
831fad2f	181	const struct platform_device_id *id_table;
3f9120b0	182	bool prevent_deferred_probe;
00d3dcdd RK	183	};
00d3dcdd RK	184
10dbc5e3 RH	185	#define to_platform_driver(drv) (container_of((drv), struct platform_driver, \
	186	driver))
	187
9447057e LC	188	/*
	189	* use a macro to avoid include chaining to get THIS_MODULE
	190	*/
	191	#define platform_driver_register(drv) \
	192	__platform_driver_register(drv, THIS_MODULE)
	193	extern int __platform_driver_register(struct platform_driver *,
	194	struct module *);
00d3dcdd RK	195	extern void platform_driver_unregister(struct platform_driver *);
00d3dcdd RK	196
c67334fb DB	197	/* non-hotpluggable platform devices may use this so that probe() and
	198	* its support may live in __init sections, conserving runtime memory.
	199	*/
c3b50dc2 WS	200	#define platform_driver_probe(drv, probe) \
	201	__platform_driver_probe(drv, probe, THIS_MODULE)
	202	extern int __platform_driver_probe(struct platform_driver *driver,
	203	int (probe)(struct platform_device ), struct module *module);
c67334fb	204
71d64290 MKB	205	static inline void platform_get_drvdata(const struct platform_device pdev)
	206	{
	207	return dev_get_drvdata(&pdev->dev);
	208	}
	209
6ae07f27 FP	210	static inline void platform_set_drvdata(struct platform_device *pdev,
6ae07f27 FP	211	void *data)
71d64290 MKB	212	{
	213	dev_set_drvdata(&pdev->dev, data);
	214	}
00d3dcdd	215
940ab889 GL	216	/* module_platform_driver() - Helper macro for drivers that don't do
	217	* anything special in module init/exit. This eliminates a lot of
	218	* boilerplate. Each module may only use this macro once, and
	219	* calling it replaces module_init() and module_exit()
	220	*/
	221	#define module_platform_driver(__platform_driver) \
907d0ed1 LPC	222	module_driver(__platform_driver, platform_driver_register, \
907d0ed1 LPC	223	platform_driver_unregister)
940ab889	224
f309d444 PG	225	/* builtin_platform_driver() - Helper macro for builtin drivers that
	226	* don't do anything special in driver init. This eliminates some
	227	* boilerplate. Each driver may only use this macro once, and
	228	* calling it replaces device_initcall(). Note this is meant to be
	229	* a parallel of module_platform_driver() above, but w/o _exit stuff.
	230	*/
	231	#define builtin_platform_driver(__platform_driver) \
	232	builtin_driver(__platform_driver, platform_driver_register)
	233
bab734fc FP	234	/* module_platform_driver_probe() - Helper macro for drivers that don't do
	235	* anything special in module init/exit. This eliminates a lot of
	236	* boilerplate. Each module may only use this macro once, and
	237	* calling it replaces module_init() and module_exit()
	238	*/
	239	#define module_platform_driver_probe(__platform_driver, __platform_probe) \
	240	static int __init __platform_driver##_init(void) \
	241	{ \
	242	return platform_driver_probe(&(__platform_driver), \
	243	__platform_probe); \
	244	} \
	245	module_init(__platform_driver##_init); \
	246	static void __exit __platform_driver##_exit(void) \
	247	{ \
	248	platform_driver_unregister(&(__platform_driver)); \
	249	} \
	250	module_exit(__platform_driver##_exit);
	251
f309d444 PG	252	/* builtin_platform_driver_probe() - Helper macro for drivers that don't do
	253	* anything special in device init. This eliminates some boilerplate. Each
	254	* driver may only use this macro once, and using it replaces device_initcall.
	255	* This is meant to be a parallel of module_platform_driver_probe above, but
	256	* without the __exit parts.
	257	*/
	258	#define builtin_platform_driver_probe(__platform_driver, __platform_probe) \
	259	static int __init __platform_driver##_init(void) \
	260	{ \
	261	return platform_driver_probe(&(__platform_driver), \
	262	__platform_probe); \
	263	} \
	264	device_initcall(__platform_driver##_init); \
	265
291f653a WS	266	#define platform_create_bundle(driver, probe, res, n_res, data, size) \
	267	__platform_create_bundle(driver, probe, res, n_res, data, size, THIS_MODULE)
	268	extern struct platform_device *__platform_create_bundle(
6ae07f27 FP	269	struct platform_driver driver, int (probe)(struct platform_device *),
6ae07f27 FP	270	struct resource *res, unsigned int n_res,
291f653a	271	const void data, size_t size, struct module module);
ecdf6ceb	272
13977091 MD	273	/* early platform driver interface */
	274	struct early_platform_driver {
	275	const char *class_str;
	276	struct platform_driver *pdrv;
	277	struct list_head list;
	278	int requested_id;
c60e0504 MD	279	char *buffer;
c60e0504 MD	280	int bufsize;
13977091 MD	281	};
	282
	283	#define EARLY_PLATFORM_ID_UNSET -2
	284	#define EARLY_PLATFORM_ID_ERROR -3
	285
	286	extern int early_platform_driver_register(struct early_platform_driver *epdrv,
	287	char *buf);
	288	extern void early_platform_add_devices(struct platform_device **devs, int num);
	289
	290	static inline int is_early_platform_device(struct platform_device *pdev)
	291	{
	292	return !pdev->dev.driver;
	293	}
	294
	295	extern void early_platform_driver_register_all(char *class_str);
	296	extern int early_platform_driver_probe(char *class_str,
	297	int nr_probe, int user_only);
	298	extern void early_platform_cleanup(void);
	299
c60e0504 MD	300	#define early_platform_init(class_string, platdrv) \
c60e0504 MD	301	early_platform_init_buffer(class_string, platdrv, NULL, 0)
13977091 MD	302
13977091 MD	303	#ifndef MODULE
c60e0504	304	#define early_platform_init_buffer(class_string, platdrv, buf, bufsiz) \
13977091 MD	305	static __initdata struct early_platform_driver early_driver = { \
13977091 MD	306	.class_str = class_string, \
c60e0504 MD	307	.buffer = buf, \
	308	.bufsize = bufsiz, \
	309	.pdrv = platdrv, \
13977091 MD	310	.requested_id = EARLY_PLATFORM_ID_UNSET, \
13977091 MD	311	}; \
c60e0504	312	static int __init early_platform_driver_setup_func(char *buffer) \
13977091	313	{ \
c60e0504	314	return early_platform_driver_register(&early_driver, buffer); \
13977091 MD	315	} \
	316	early_param(class_string, early_platform_driver_setup_func)
	317	#else /* MODULE */
c60e0504 MD	318	#define early_platform_init_buffer(class_string, platdrv, buf, bufsiz) \
	319	static inline char *early_platform_driver_setup_func(void) \
	320	{ \
	321	return bufsiz ? buf : NULL; \
	322	}
13977091 MD	323	#endif /* MODULE */
13977091 MD	324
69c9dd1e RW	325	#ifdef CONFIG_SUSPEND
69c9dd1e RW	326	extern int platform_pm_suspend(struct device *dev);
69c9dd1e	327	extern int platform_pm_resume(struct device *dev);
69c9dd1e RW	328	#else
	329	#define platform_pm_suspend NULL
	330	#define platform_pm_resume NULL
69c9dd1e RW	331	#endif
	332
	333	#ifdef CONFIG_HIBERNATE_CALLBACKS
	334	extern int platform_pm_freeze(struct device *dev);
69c9dd1e	335	extern int platform_pm_thaw(struct device *dev);
69c9dd1e	336	extern int platform_pm_poweroff(struct device *dev);
69c9dd1e	337	extern int platform_pm_restore(struct device *dev);
69c9dd1e RW	338	#else
	339	#define platform_pm_freeze NULL
	340	#define platform_pm_thaw NULL
	341	#define platform_pm_poweroff NULL
	342	#define platform_pm_restore NULL
69c9dd1e RW	343	#endif
	344
	345	#ifdef CONFIG_PM_SLEEP
	346	#define USE_PLATFORM_PM_SLEEP_OPS \
69c9dd1e RW	347	.suspend = platform_pm_suspend, \
	348	.resume = platform_pm_resume, \
	349	.freeze = platform_pm_freeze, \
	350	.thaw = platform_pm_thaw, \
	351	.poweroff = platform_pm_poweroff, \
9b39e73d	352	.restore = platform_pm_restore,
69c9dd1e RW	353	#else
	354	#define USE_PLATFORM_PM_SLEEP_OPS
	355	#endif
	356
bbbf508d	357	#endif /* _PLATFORM_DEVICE_H_ */