[linux-block.git] / include / linux / thermal.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 *  thermal.h  ($Revision: 0 $)
 *
 *  Copyright (C) 2008  Intel Corp
 *  Copyright (C) 2008  Zhang Rui <rui.zhang@intel.com>
 *  Copyright (C) 2008  Sujith Thomas <sujith.thomas@intel.com>
 */

#ifndef __THERMAL_H__
#define __THERMAL_H__

#include <linux/of.h>
#include <linux/idr.h>
#include <linux/device.h>
#include <linux/sysfs.h>
#include <linux/workqueue.h>
#include <uapi/linux/thermal.h>

/* invalid cooling state */
#define THERMAL_CSTATE_INVALID -1UL

/* No upper/lower limit requirement */
#define THERMAL_NO_LIMIT	((u32)~0)

/* Default weight of a bound cooling device */
#define THERMAL_WEIGHT_DEFAULT 0

/* use value, which < 0K, to indicate an invalid/uninitialized temperature */
#define THERMAL_TEMP_INVALID	-274000

struct thermal_zone_device;
struct thermal_cooling_device;
struct thermal_instance;
struct thermal_debugfs;
struct thermal_attr;

enum thermal_trend {
	THERMAL_TREND_STABLE, /* temperature is stable */
	THERMAL_TREND_RAISING, /* temperature is raising */
	THERMAL_TREND_DROPPING, /* temperature is dropping */
};

/* Thermal notification reason */
enum thermal_notify_event {
	THERMAL_EVENT_UNSPECIFIED, /* Unspecified event */
	THERMAL_EVENT_TEMP_SAMPLE, /* New Temperature sample */
	THERMAL_TRIP_VIOLATED, /* TRIP Point violation */
	THERMAL_TRIP_CHANGED, /* TRIP Point temperature changed */
	THERMAL_DEVICE_DOWN, /* Thermal device is down */
	THERMAL_DEVICE_UP, /* Thermal device is up after a down event */
	THERMAL_DEVICE_POWER_CAPABILITY_CHANGED, /* power capability changed */
	THERMAL_TABLE_CHANGED, /* Thermal table(s) changed */
	THERMAL_EVENT_KEEP_ALIVE, /* Request for user space handler to respond */
	THERMAL_TZ_BIND_CDEV, /* Cooling dev is bind to the thermal zone */
	THERMAL_TZ_UNBIND_CDEV, /* Cooling dev is unbind from the thermal zone */
	THERMAL_INSTANCE_WEIGHT_CHANGED, /* Thermal instance weight changed */
	THERMAL_TZ_RESUME, /* Thermal zone is resuming after system sleep */
};

/**
 * struct thermal_trip - representation of a point in temperature domain
 * @temperature: temperature value in miliCelsius
 * @hysteresis: relative hysteresis in miliCelsius
 * @type: trip point type
 * @priv: pointer to driver data associated with this trip
 * @flags: flags representing binary properties of the trip
 */
struct thermal_trip {
	int temperature;
	int hysteresis;
	enum thermal_trip_type type;
	u8 flags;
	void *priv;
};

#define THERMAL_TRIP_FLAG_RW_TEMP	BIT(0)
#define THERMAL_TRIP_FLAG_RW_HYST	BIT(1)

#define THERMAL_TRIP_FLAG_RW	(THERMAL_TRIP_FLAG_RW_TEMP | \
				 THERMAL_TRIP_FLAG_RW_HYST)

#define THERMAL_TRIP_PRIV_TO_INT(_val_)	(uintptr_t)(_val_)
#define THERMAL_INT_TO_TRIP_PRIV(_val_)	(void *)(uintptr_t)(_val_)

struct thermal_zone_device;

struct thermal_zone_device_ops {
	int (*bind) (struct thermal_zone_device *,
		     struct thermal_cooling_device *);
	int (*unbind) (struct thermal_zone_device *,
		       struct thermal_cooling_device *);
	int (*get_temp) (struct thermal_zone_device *, int *);
	int (*set_trips) (struct thermal_zone_device *, int, int);
	int (*change_mode) (struct thermal_zone_device *,
		enum thermal_device_mode);
	int (*set_trip_temp) (struct thermal_zone_device *,
			      const struct thermal_trip *, int);
	int (*get_crit_temp) (struct thermal_zone_device *, int *);
	int (*set_emul_temp) (struct thermal_zone_device *, int);
	int (*get_trend) (struct thermal_zone_device *,
			  const struct thermal_trip *, enum thermal_trend *);
	void (*hot)(struct thermal_zone_device *);
	void (*critical)(struct thermal_zone_device *);
};

struct thermal_cooling_device_ops {
	int (*get_max_state) (struct thermal_cooling_device *, unsigned long *);
	int (*get_cur_state) (struct thermal_cooling_device *, unsigned long *);
	int (*set_cur_state) (struct thermal_cooling_device *, unsigned long);
	int (*get_requested_power)(struct thermal_cooling_device *, u32 *);
	int (*state2power)(struct thermal_cooling_device *, unsigned long, u32 *);
	int (*power2state)(struct thermal_cooling_device *, u32, unsigned long *);
};

struct thermal_cooling_device {
	int id;
	const char *type;
	unsigned long max_state;
	struct device device;
	struct device_node *np;
	void *devdata;
	void *stats;
	const struct thermal_cooling_device_ops *ops;
	bool updated; /* true if the cooling device does not need update */
	struct mutex lock; /* protect thermal_instances list */
	struct list_head thermal_instances;
	struct list_head node;
#ifdef CONFIG_THERMAL_DEBUGFS
	struct thermal_debugfs *debugfs;
#endif
};

/* Structure to define Thermal Zone parameters */
struct thermal_zone_params {
	const char *governor_name;

	/*
	 * a boolean to indicate if the thermal to hwmon sysfs interface
	 * is required. when no_hwmon == false, a hwmon sysfs interface
	 * will be created. when no_hwmon == true, nothing will be done
	 */
	bool no_hwmon;

	/*
	 * Sustainable power (heat) that this thermal zone can dissipate in
	 * mW
	 */
	u32 sustainable_power;

	/*
	 * Proportional parameter of the PID controller when
	 * overshooting (i.e., when temperature is below the target)
	 */
	s32 k_po;

	/*
	 * Proportional parameter of the PID controller when
	 * undershooting
	 */
	s32 k_pu;

	/* Integral parameter of the PID controller */
	s32 k_i;

	/* Derivative parameter of the PID controller */
	s32 k_d;

	/* threshold below which the error is no longer accumulated */
	s32 integral_cutoff;

	/*
	 * @slope:	slope of a linear temperature adjustment curve.
	 * 		Used by thermal zone drivers.
	 */
	int slope;
	/*
	 * @offset:	offset of a linear temperature adjustment curve.
	 * 		Used by thermal zone drivers (default 0).
	 */
	int offset;
};

/* Function declarations */
#ifdef CONFIG_THERMAL_OF
struct thermal_zone_device *devm_thermal_of_zone_register(struct device *dev, int id, void *data,
							  const struct thermal_zone_device_ops *ops);

void devm_thermal_of_zone_unregister(struct device *dev, struct thermal_zone_device *tz);

#else

static inline
struct thermal_zone_device *devm_thermal_of_zone_register(struct device *dev, int id, void *data,
							  const struct thermal_zone_device_ops *ops)
{
	return ERR_PTR(-ENOTSUPP);
}

static inline void devm_thermal_of_zone_unregister(struct device *dev,
						   struct thermal_zone_device *tz)
{
}
#endif

int thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
			  struct thermal_trip *trip);
int for_each_thermal_trip(struct thermal_zone_device *tz,
			  int (*cb)(struct thermal_trip *, void *),
			  void *data);
int thermal_zone_for_each_trip(struct thermal_zone_device *tz,
			       int (*cb)(struct thermal_trip *, void *),
			       void *data);
int thermal_zone_get_num_trips(struct thermal_zone_device *tz);
void thermal_zone_set_trip_temp(struct thermal_zone_device *tz,
				struct thermal_trip *trip, int temp);

int thermal_zone_get_crit_temp(struct thermal_zone_device *tz, int *temp);

#ifdef CONFIG_THERMAL
struct thermal_zone_device *thermal_zone_device_register_with_trips(
					const char *type,
					const struct thermal_trip *trips,
					int num_trips, void *devdata,
					const struct thermal_zone_device_ops *ops,
					const struct thermal_zone_params *tzp,
					unsigned int passive_delay,
					unsigned int polling_delay);

struct thermal_zone_device *thermal_tripless_zone_device_register(
					const char *type,
					void *devdata,
					const struct thermal_zone_device_ops *ops,
					const struct thermal_zone_params *tzp);

void thermal_zone_device_unregister(struct thermal_zone_device *tz);

void *thermal_zone_device_priv(struct thermal_zone_device *tzd);
const char *thermal_zone_device_type(struct thermal_zone_device *tzd);
int thermal_zone_device_id(struct thermal_zone_device *tzd);
struct device *thermal_zone_device(struct thermal_zone_device *tzd);

int thermal_bind_cdev_to_trip(struct thermal_zone_device *tz,
			      const struct thermal_trip *trip,
			      struct thermal_cooling_device *cdev,
			      unsigned long upper, unsigned long lower,
			      unsigned int weight);
int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int,
				     struct thermal_cooling_device *,
				     unsigned long, unsigned long,
				     unsigned int);
int thermal_unbind_cdev_from_trip(struct thermal_zone_device *tz,
				  const struct thermal_trip *trip,
				  struct thermal_cooling_device *cdev);
int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int,
				       struct thermal_cooling_device *);
void thermal_zone_device_update(struct thermal_zone_device *,
				enum thermal_notify_event);

struct thermal_cooling_device *thermal_cooling_device_register(const char *,
		void *, const struct thermal_cooling_device_ops *);
struct thermal_cooling_device *
thermal_of_cooling_device_register(struct device_node *np, const char *, void *,
				   const struct thermal_cooling_device_ops *);
struct thermal_cooling_device *
devm_thermal_of_cooling_device_register(struct device *dev,
				struct device_node *np,
				const char *type, void *devdata,
				const struct thermal_cooling_device_ops *ops);
void thermal_cooling_device_update(struct thermal_cooling_device *);
void thermal_cooling_device_unregister(struct thermal_cooling_device *);
struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name);
int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp);
int thermal_zone_get_slope(struct thermal_zone_device *tz);
int thermal_zone_get_offset(struct thermal_zone_device *tz);
bool thermal_trip_is_bound_to_cdev(struct thermal_zone_device *tz,
				   const struct thermal_trip *trip,
				   struct thermal_cooling_device *cdev);

int thermal_zone_device_enable(struct thermal_zone_device *tz);
int thermal_zone_device_disable(struct thermal_zone_device *tz);
void thermal_zone_device_critical(struct thermal_zone_device *tz);
#else
static inline struct thermal_zone_device *thermal_zone_device_register_with_trips(
					const char *type,
					const struct thermal_trip *trips,
					int num_trips, void *devdata,
					const struct thermal_zone_device_ops *ops,
					const struct thermal_zone_params *tzp,
					int passive_delay, int polling_delay)
{ return ERR_PTR(-ENODEV); }

static inline struct thermal_zone_device *thermal_tripless_zone_device_register(
					const char *type,
					void *devdata,
					struct thermal_zone_device_ops *ops,
					const struct thermal_zone_params *tzp)
{ return ERR_PTR(-ENODEV); }

static inline void thermal_zone_device_unregister(struct thermal_zone_device *tz)
{ }

static inline struct thermal_cooling_device *
thermal_cooling_device_register(const char *type, void *devdata,
	const struct thermal_cooling_device_ops *ops)
{ return ERR_PTR(-ENODEV); }
static inline struct thermal_cooling_device *
thermal_of_cooling_device_register(struct device_node *np,
	const char *type, void *devdata,
	const struct thermal_cooling_device_ops *ops)
{ return ERR_PTR(-ENODEV); }
static inline struct thermal_cooling_device *
devm_thermal_of_cooling_device_register(struct device *dev,
				struct device_node *np,
				const char *type, void *devdata,
				const struct thermal_cooling_device_ops *ops)
{
	return ERR_PTR(-ENODEV);
}
static inline void thermal_cooling_device_unregister(
	struct thermal_cooling_device *cdev)
{ }
static inline struct thermal_zone_device *thermal_zone_get_zone_by_name(
		const char *name)
{ return ERR_PTR(-ENODEV); }
static inline int thermal_zone_get_temp(
		struct thermal_zone_device *tz, int *temp)
{ return -ENODEV; }
static inline int thermal_zone_get_slope(
		struct thermal_zone_device *tz)
{ return -ENODEV; }
static inline int thermal_zone_get_offset(
		struct thermal_zone_device *tz)
{ return -ENODEV; }

static inline void *thermal_zone_device_priv(struct thermal_zone_device *tz)
{
	return NULL;
}

static inline const char *thermal_zone_device_type(struct thermal_zone_device *tzd)
{
	return NULL;
}

static inline int thermal_zone_device_id(struct thermal_zone_device *tzd)
{
	return -ENODEV;
}

static inline int thermal_zone_device_enable(struct thermal_zone_device *tz)
{ return -ENODEV; }

static inline int thermal_zone_device_disable(struct thermal_zone_device *tz)
{ return -ENODEV; }
#endif /* CONFIG_THERMAL */

#endif /* __THERMAL_H__ */
Commit	Line	Data
	1	/* SPDX-License-Identifier: GPL-2.0 */
	2	/*
	3	* thermal.h ($Revision: 0 $)
	4	*
	5	* Copyright (C) 2008 Intel Corp
	6	* Copyright (C) 2008 Zhang Rui <rui.zhang@intel.com>
	7	* Copyright (C) 2008 Sujith Thomas <sujith.thomas@intel.com>
	8	*/
	9
	10	#ifndef __THERMAL_H__
	11	#define __THERMAL_H__
	12
	13	#include <linux/of.h>
	14	#include <linux/idr.h>
	15	#include <linux/device.h>
	16	#include <linux/sysfs.h>
	17	#include <linux/workqueue.h>
	18	#include <uapi/linux/thermal.h>
	19
	20	/* invalid cooling state */
	21	#define THERMAL_CSTATE_INVALID -1UL
	22
	23	/* No upper/lower limit requirement */
	24	#define THERMAL_NO_LIMIT ((u32)~0)
	25
	26	/* Default weight of a bound cooling device */
	27	#define THERMAL_WEIGHT_DEFAULT 0
	28
	29	/* use value, which < 0K, to indicate an invalid/uninitialized temperature */
	30	#define THERMAL_TEMP_INVALID -274000
	31
	32	struct thermal_zone_device;
	33	struct thermal_cooling_device;
	34	struct thermal_instance;
	35	struct thermal_debugfs;
	36	struct thermal_attr;
	37
	38	enum thermal_trend {
	39	THERMAL_TREND_STABLE, /* temperature is stable */
	40	THERMAL_TREND_RAISING, /* temperature is raising */
	41	THERMAL_TREND_DROPPING, /* temperature is dropping */
	42	};
	43
	44	/* Thermal notification reason */
	45	enum thermal_notify_event {
	46	THERMAL_EVENT_UNSPECIFIED, /* Unspecified event */
	47	THERMAL_EVENT_TEMP_SAMPLE, /* New Temperature sample */
	48	THERMAL_TRIP_VIOLATED, /* TRIP Point violation */
	49	THERMAL_TRIP_CHANGED, /* TRIP Point temperature changed */
	50	THERMAL_DEVICE_DOWN, /* Thermal device is down */
	51	THERMAL_DEVICE_UP, /* Thermal device is up after a down event */
	52	THERMAL_DEVICE_POWER_CAPABILITY_CHANGED, /* power capability changed */
	53	THERMAL_TABLE_CHANGED, /* Thermal table(s) changed */
	54	THERMAL_EVENT_KEEP_ALIVE, /* Request for user space handler to respond */
	55	THERMAL_TZ_BIND_CDEV, /* Cooling dev is bind to the thermal zone */
	56	THERMAL_TZ_UNBIND_CDEV, /* Cooling dev is unbind from the thermal zone */
	57	THERMAL_INSTANCE_WEIGHT_CHANGED, /* Thermal instance weight changed */
	58	THERMAL_TZ_RESUME, /* Thermal zone is resuming after system sleep */
	59	};
	60
	61	/**
	62	* struct thermal_trip - representation of a point in temperature domain
	63	* @temperature: temperature value in miliCelsius
	64	* @hysteresis: relative hysteresis in miliCelsius
	65	* @type: trip point type
	66	* @priv: pointer to driver data associated with this trip
	67	* @flags: flags representing binary properties of the trip
	68	*/
	69	struct thermal_trip {
	70	int temperature;
	71	int hysteresis;
	72	enum thermal_trip_type type;
	73	u8 flags;
	74	void *priv;
	75	};
	76
	77	#define THERMAL_TRIP_FLAG_RW_TEMP BIT(0)
	78	#define THERMAL_TRIP_FLAG_RW_HYST BIT(1)
	79
	80	#define THERMAL_TRIP_FLAG_RW (THERMAL_TRIP_FLAG_RW_TEMP \| \
	81	THERMAL_TRIP_FLAG_RW_HYST)
	82
	83	#define THERMAL_TRIP_PRIV_TO_INT(_val_) (uintptr_t)(_val_)
	84	#define THERMAL_INT_TO_TRIP_PRIV(_val_) (void *)(uintptr_t)(_val_)
	85
	86	struct thermal_zone_device;
	87
	88	struct thermal_zone_device_ops {
	89	int (bind) (struct thermal_zone_device ,
	90	struct thermal_cooling_device *);
	91	int (unbind) (struct thermal_zone_device ,
	92	struct thermal_cooling_device *);
	93	int (get_temp) (struct thermal_zone_device , int *);
	94	int (set_trips) (struct thermal_zone_device , int, int);
	95	int (change_mode) (struct thermal_zone_device ,
	96	enum thermal_device_mode);
	97	int (set_trip_temp) (struct thermal_zone_device ,
	98	const struct thermal_trip *, int);
	99	int (get_crit_temp) (struct thermal_zone_device , int *);
	100	int (set_emul_temp) (struct thermal_zone_device , int);
	101	int (get_trend) (struct thermal_zone_device ,
	102	const struct thermal_trip , enum thermal_trend );
	103	void (hot)(struct thermal_zone_device );
	104	void (critical)(struct thermal_zone_device );
	105	};
	106
	107	struct thermal_cooling_device_ops {
	108	int (get_max_state) (struct thermal_cooling_device , unsigned long *);
	109	int (get_cur_state) (struct thermal_cooling_device , unsigned long *);
	110	int (set_cur_state) (struct thermal_cooling_device , unsigned long);
	111	int (get_requested_power)(struct thermal_cooling_device , u32 *);
	112	int (state2power)(struct thermal_cooling_device , unsigned long, u32 *);
	113	int (power2state)(struct thermal_cooling_device , u32, unsigned long *);
	114	};
	115
	116	struct thermal_cooling_device {
	117	int id;
	118	const char *type;
	119	unsigned long max_state;
	120	struct device device;
	121	struct device_node *np;
	122	void *devdata;
	123	void *stats;
	124	const struct thermal_cooling_device_ops *ops;
	125	bool updated; /* true if the cooling device does not need update */
	126	struct mutex lock; /* protect thermal_instances list */
	127	struct list_head thermal_instances;
	128	struct list_head node;
	129	#ifdef CONFIG_THERMAL_DEBUGFS
	130	struct thermal_debugfs *debugfs;
	131	#endif
	132	};
	133
	134	/* Structure to define Thermal Zone parameters */
	135	struct thermal_zone_params {
	136	const char *governor_name;
	137
	138	/*
	139	* a boolean to indicate if the thermal to hwmon sysfs interface
	140	* is required. when no_hwmon == false, a hwmon sysfs interface
	141	* will be created. when no_hwmon == true, nothing will be done
	142	*/
	143	bool no_hwmon;
	144
	145	/*
	146	* Sustainable power (heat) that this thermal zone can dissipate in
	147	* mW
	148	*/
	149	u32 sustainable_power;
	150
	151	/*
	152	* Proportional parameter of the PID controller when
	153	* overshooting (i.e., when temperature is below the target)
	154	*/
	155	s32 k_po;
	156
	157	/*
	158	* Proportional parameter of the PID controller when
	159	* undershooting
	160	*/
	161	s32 k_pu;
	162
	163	/* Integral parameter of the PID controller */
	164	s32 k_i;
	165
	166	/* Derivative parameter of the PID controller */
	167	s32 k_d;
	168
	169	/* threshold below which the error is no longer accumulated */
	170	s32 integral_cutoff;
	171
	172	/*
	173	* @slope: slope of a linear temperature adjustment curve.
	174	* Used by thermal zone drivers.
	175	*/
	176	int slope;
	177	/*
	178	* @offset: offset of a linear temperature adjustment curve.
	179	* Used by thermal zone drivers (default 0).
	180	*/
	181	int offset;
	182	};
	183
	184	/* Function declarations */
	185	#ifdef CONFIG_THERMAL_OF
	186	struct thermal_zone_device devm_thermal_of_zone_register(struct device dev, int id, void *data,
	187	const struct thermal_zone_device_ops *ops);
	188
	189	void devm_thermal_of_zone_unregister(struct device dev, struct thermal_zone_device tz);
	190
	191	#else
	192
	193	static inline
	194	struct thermal_zone_device devm_thermal_of_zone_register(struct device dev, int id, void *data,
	195	const struct thermal_zone_device_ops *ops)
	196	{
	197	return ERR_PTR(-ENOTSUPP);
	198	}
	199
	200	static inline void devm_thermal_of_zone_unregister(struct device *dev,
	201	struct thermal_zone_device *tz)
	202	{
	203	}
	204	#endif
	205
	206	int thermal_zone_get_trip(struct thermal_zone_device *tz, int trip_id,
	207	struct thermal_trip *trip);
	208	int for_each_thermal_trip(struct thermal_zone_device *tz,
	209	int (cb)(struct thermal_trip , void *),
	210	void *data);
	211	int thermal_zone_for_each_trip(struct thermal_zone_device *tz,
	212	int (cb)(struct thermal_trip , void *),
	213	void *data);
	214	int thermal_zone_get_num_trips(struct thermal_zone_device *tz);
	215	void thermal_zone_set_trip_temp(struct thermal_zone_device *tz,
	216	struct thermal_trip *trip, int temp);
	217
	218	int thermal_zone_get_crit_temp(struct thermal_zone_device tz, int temp);
	219
	220	#ifdef CONFIG_THERMAL
	221	struct thermal_zone_device *thermal_zone_device_register_with_trips(
	222	const char *type,
	223	const struct thermal_trip *trips,
	224	int num_trips, void *devdata,
	225	const struct thermal_zone_device_ops *ops,
	226	const struct thermal_zone_params *tzp,
	227	unsigned int passive_delay,
	228	unsigned int polling_delay);
	229
	230	struct thermal_zone_device *thermal_tripless_zone_device_register(
	231	const char *type,
	232	void *devdata,
	233	const struct thermal_zone_device_ops *ops,
	234	const struct thermal_zone_params *tzp);
	235
	236	void thermal_zone_device_unregister(struct thermal_zone_device *tz);
	237
	238	void thermal_zone_device_priv(struct thermal_zone_device tzd);
	239	const char thermal_zone_device_type(struct thermal_zone_device tzd);
	240	int thermal_zone_device_id(struct thermal_zone_device *tzd);
	241	struct device thermal_zone_device(struct thermal_zone_device tzd);
	242
	243	int thermal_bind_cdev_to_trip(struct thermal_zone_device *tz,
	244	const struct thermal_trip *trip,
	245	struct thermal_cooling_device *cdev,
	246	unsigned long upper, unsigned long lower,
	247	unsigned int weight);
	248	int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int,
	249	struct thermal_cooling_device *,
	250	unsigned long, unsigned long,
	251	unsigned int);
	252	int thermal_unbind_cdev_from_trip(struct thermal_zone_device *tz,
	253	const struct thermal_trip *trip,
	254	struct thermal_cooling_device *cdev);
	255	int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int,
	256	struct thermal_cooling_device *);
	257	void thermal_zone_device_update(struct thermal_zone_device *,
	258	enum thermal_notify_event);
	259
	260	struct thermal_cooling_device thermal_cooling_device_register(const char ,
	261	void , const struct thermal_cooling_device_ops );
	262	struct thermal_cooling_device *
	263	thermal_of_cooling_device_register(struct device_node np, const char , void *,
	264	const struct thermal_cooling_device_ops *);
	265	struct thermal_cooling_device *
	266	devm_thermal_of_cooling_device_register(struct device *dev,
	267	struct device_node *np,
	268	const char type, void devdata,
	269	const struct thermal_cooling_device_ops *ops);
	270	void thermal_cooling_device_update(struct thermal_cooling_device *);
	271	void thermal_cooling_device_unregister(struct thermal_cooling_device *);
	272	struct thermal_zone_device thermal_zone_get_zone_by_name(const char name);
	273	int thermal_zone_get_temp(struct thermal_zone_device tz, int temp);
	274	int thermal_zone_get_slope(struct thermal_zone_device *tz);
	275	int thermal_zone_get_offset(struct thermal_zone_device *tz);
	276	bool thermal_trip_is_bound_to_cdev(struct thermal_zone_device *tz,
	277	const struct thermal_trip *trip,
	278	struct thermal_cooling_device *cdev);
	279
	280	int thermal_zone_device_enable(struct thermal_zone_device *tz);
	281	int thermal_zone_device_disable(struct thermal_zone_device *tz);
	282	void thermal_zone_device_critical(struct thermal_zone_device *tz);
	283	#else
	284	static inline struct thermal_zone_device *thermal_zone_device_register_with_trips(
	285	const char *type,
	286	const struct thermal_trip *trips,
	287	int num_trips, void *devdata,
	288	const struct thermal_zone_device_ops *ops,
	289	const struct thermal_zone_params *tzp,
	290	int passive_delay, int polling_delay)
	291	{ return ERR_PTR(-ENODEV); }
	292
	293	static inline struct thermal_zone_device *thermal_tripless_zone_device_register(
	294	const char *type,
	295	void *devdata,
	296	struct thermal_zone_device_ops *ops,
	297	const struct thermal_zone_params *tzp)
	298	{ return ERR_PTR(-ENODEV); }
	299
	300	static inline void thermal_zone_device_unregister(struct thermal_zone_device *tz)
	301	{ }
	302
	303	static inline struct thermal_cooling_device *
	304	thermal_cooling_device_register(const char type, void devdata,
	305	const struct thermal_cooling_device_ops *ops)
	306	{ return ERR_PTR(-ENODEV); }
	307	static inline struct thermal_cooling_device *
	308	thermal_of_cooling_device_register(struct device_node *np,
	309	const char type, void devdata,
	310	const struct thermal_cooling_device_ops *ops)
	311	{ return ERR_PTR(-ENODEV); }
	312	static inline struct thermal_cooling_device *
	313	devm_thermal_of_cooling_device_register(struct device *dev,
	314	struct device_node *np,
	315	const char type, void devdata,
	316	const struct thermal_cooling_device_ops *ops)
	317	{
	318	return ERR_PTR(-ENODEV);
	319	}
	320	static inline void thermal_cooling_device_unregister(
	321	struct thermal_cooling_device *cdev)
	322	{ }
	323	static inline struct thermal_zone_device *thermal_zone_get_zone_by_name(
	324	const char *name)
	325	{ return ERR_PTR(-ENODEV); }
	326	static inline int thermal_zone_get_temp(
	327	struct thermal_zone_device tz, int temp)
	328	{ return -ENODEV; }
	329	static inline int thermal_zone_get_slope(
	330	struct thermal_zone_device *tz)
	331	{ return -ENODEV; }
	332	static inline int thermal_zone_get_offset(
	333	struct thermal_zone_device *tz)
	334	{ return -ENODEV; }
	335
	336	static inline void thermal_zone_device_priv(struct thermal_zone_device tz)
	337	{
	338	return NULL;
	339	}
	340
	341	static inline const char thermal_zone_device_type(struct thermal_zone_device tzd)
	342	{
	343	return NULL;
	344	}
	345
	346	static inline int thermal_zone_device_id(struct thermal_zone_device *tzd)
	347	{
	348	return -ENODEV;
	349	}
	350
	351	static inline int thermal_zone_device_enable(struct thermal_zone_device *tz)
	352	{ return -ENODEV; }
	353
	354	static inline int thermal_zone_device_disable(struct thermal_zone_device *tz)
	355	{ return -ENODEV; }
	356	#endif /* CONFIG_THERMAL */
	357
	358	#endif /* __THERMAL_H__ */