include/linux/platform_device.h - kernel/msm-5.4 - Gitiles

 /*
  * 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>

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

 struct mfd_cell;
 struct property_entry;
 struct platform_device_id;

 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 dev_is_platform(dev) ((dev)->bus == &platform_bus_type)
 #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 void __iomem *
 devm_platform_ioremap_resource(struct platform_device *pdev,
 			       unsigned int index);
 extern int platform_get_irq(struct platform_device *, unsigned int);
 extern int platform_irq_count(struct platform_device *);
 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;
 		bool of_node_reused;

 		const char *name;
 		int id;

 		const struct resource *res;
 		unsigned int num_res;

 		const void *data;
 		size_t size_data;
 		u64 dma_mask;

 		struct property_entry *properties;
 };
 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_properties(struct platform_device *pdev,
 				const struct property_entry *properties);
 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);

 int __platform_register_drivers(struct platform_driver * const *drivers,
 				unsigned int count, struct module *owner);
 void platform_unregister_drivers(struct platform_driver * const *drivers,
 				 unsigned int count);

 #define platform_register_drivers(drivers, count) \
 	__platform_register_drivers(drivers, count, THIS_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

 extern int platform_dma_configure(struct device *dev);

 #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_ */
	/*
	* 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>

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

	struct mfd_cell;
	struct property_entry;
	struct platform_device_id;

	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 dev_is_platform(dev) ((dev)->bus == &platform_bus_type)
	#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 void __iomem *
	devm_platform_ioremap_resource(struct platform_device *pdev,
	unsigned int index);
	extern int platform_get_irq(struct platform_device *, unsigned int);
	extern int platform_irq_count(struct platform_device *);
	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;
	bool of_node_reused;

	const char *name;
	int id;

	const struct resource *res;
	unsigned int num_res;

	const void *data;
	size_t size_data;
	u64 dma_mask;

	struct property_entry *properties;
	};
	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_properties(struct platform_device *pdev,
	const struct property_entry *properties);
	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);

	int __platform_register_drivers(struct platform_driver * const *drivers,
	unsigned int count, struct module *owner);
	void platform_unregister_drivers(struct platform_driver * const *drivers,
	unsigned int count);

	#define platform_register_drivers(drivers, count) \
	__platform_register_drivers(drivers, count, THIS_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

	extern int platform_dma_configure(struct device *dev);

	#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_ */