[linux-2.6-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 */
	THERMAL_TZ_ADD_THRESHOLD, /* Threshold added */
	THERMAL_TZ_DEL_THRESHOLD, /* Threshold deleted */
	THERMAL_TZ_FLUSH_THRESHOLDS, /* All thresholds deleted */
};

/**
 * 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 cooling_spec {
	unsigned long upper;	/* Highest cooling state  */
	unsigned long lower;	/* Lowest cooling state  */
	unsigned int weight;	/* Cooling device weight */
};

struct thermal_zone_device_ops {
	bool (*should_bind) (struct thermal_zone_device *,
			     const struct thermal_trip *,
			     struct thermal_cooling_device *,
			     struct cooling_spec *);
	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
};

DEFINE_GUARD(cooling_dev, struct thermal_cooling_device *, mutex_lock(&_T->lock),
	     mutex_unlock(&_T->lock))

/* 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 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);
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);

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 void thermal_zone_device_update(struct thermal_zone_device *tz,
					      enum thermal_notify_event event)
{ }

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	THERMAL_TZ_ADD_THRESHOLD, /* Threshold added */
	60	THERMAL_TZ_DEL_THRESHOLD, /* Threshold deleted */
	61	THERMAL_TZ_FLUSH_THRESHOLDS, /* All thresholds deleted */
	62	};
	63
	64	/**
	65	* struct thermal_trip - representation of a point in temperature domain
	66	* @temperature: temperature value in miliCelsius
	67	* @hysteresis: relative hysteresis in miliCelsius
	68	* @type: trip point type
	69	* @priv: pointer to driver data associated with this trip
	70	* @flags: flags representing binary properties of the trip
	71	*/
	72	struct thermal_trip {
	73	int temperature;
	74	int hysteresis;
	75	enum thermal_trip_type type;
	76	u8 flags;
	77	void *priv;
	78	};
	79
	80	#define THERMAL_TRIP_FLAG_RW_TEMP BIT(0)
	81	#define THERMAL_TRIP_FLAG_RW_HYST BIT(1)
	82
	83	#define THERMAL_TRIP_FLAG_RW (THERMAL_TRIP_FLAG_RW_TEMP \| \
	84	THERMAL_TRIP_FLAG_RW_HYST)
	85
	86	#define THERMAL_TRIP_PRIV_TO_INT(_val_) (uintptr_t)(_val_)
	87	#define THERMAL_INT_TO_TRIP_PRIV(_val_) (void *)(uintptr_t)(_val_)
	88
	89	struct cooling_spec {
	90	unsigned long upper; /* Highest cooling state */
	91	unsigned long lower; /* Lowest cooling state */
	92	unsigned int weight; /* Cooling device weight */
	93	};
	94
	95	struct thermal_zone_device_ops {
	96	bool (should_bind) (struct thermal_zone_device ,
	97	const struct thermal_trip *,
	98	struct thermal_cooling_device *,
	99	struct cooling_spec *);
	100	int (get_temp) (struct thermal_zone_device , int *);
	101	int (set_trips) (struct thermal_zone_device , int, int);
	102	int (change_mode) (struct thermal_zone_device ,
	103	enum thermal_device_mode);
	104	int (set_trip_temp) (struct thermal_zone_device ,
	105	const struct thermal_trip *, int);
	106	int (get_crit_temp) (struct thermal_zone_device , int *);
	107	int (set_emul_temp) (struct thermal_zone_device , int);
	108	int (get_trend) (struct thermal_zone_device ,
	109	const struct thermal_trip , enum thermal_trend );
	110	void (hot)(struct thermal_zone_device );
	111	void (critical)(struct thermal_zone_device );
	112	};
	113
	114	struct thermal_cooling_device_ops {
	115	int (get_max_state) (struct thermal_cooling_device , unsigned long *);
	116	int (get_cur_state) (struct thermal_cooling_device , unsigned long *);
	117	int (set_cur_state) (struct thermal_cooling_device , unsigned long);
	118	int (get_requested_power)(struct thermal_cooling_device , u32 *);
	119	int (state2power)(struct thermal_cooling_device , unsigned long, u32 *);
	120	int (power2state)(struct thermal_cooling_device , u32, unsigned long *);
	121	};
	122
	123	struct thermal_cooling_device {
	124	int id;
	125	const char *type;
	126	unsigned long max_state;
	127	struct device device;
	128	struct device_node *np;
	129	void *devdata;
	130	void *stats;
	131	const struct thermal_cooling_device_ops *ops;
	132	bool updated; /* true if the cooling device does not need update */
	133	struct mutex lock; /* protect thermal_instances list */
	134	struct list_head thermal_instances;
	135	struct list_head node;
	136	#ifdef CONFIG_THERMAL_DEBUGFS
	137	struct thermal_debugfs *debugfs;
	138	#endif
	139	};
	140
	141	DEFINE_GUARD(cooling_dev, struct thermal_cooling_device *, mutex_lock(&_T->lock),
	142	mutex_unlock(&_T->lock))
	143
	144	/* Structure to define Thermal Zone parameters */
	145	struct thermal_zone_params {
	146	const char *governor_name;
	147
	148	/*
	149	* a boolean to indicate if the thermal to hwmon sysfs interface
	150	* is required. when no_hwmon == false, a hwmon sysfs interface
	151	* will be created. when no_hwmon == true, nothing will be done
	152	*/
	153	bool no_hwmon;
	154
	155	/*
	156	* Sustainable power (heat) that this thermal zone can dissipate in
	157	* mW
	158	*/
	159	u32 sustainable_power;
	160
	161	/*
	162	* Proportional parameter of the PID controller when
	163	* overshooting (i.e., when temperature is below the target)
	164	*/
	165	s32 k_po;
	166
	167	/*
	168	* Proportional parameter of the PID controller when
	169	* undershooting
	170	*/
	171	s32 k_pu;
	172
	173	/* Integral parameter of the PID controller */
	174	s32 k_i;
	175
	176	/* Derivative parameter of the PID controller */
	177	s32 k_d;
	178
	179	/* threshold below which the error is no longer accumulated */
	180	s32 integral_cutoff;
	181
	182	/*
	183	* @slope: slope of a linear temperature adjustment curve.
	184	* Used by thermal zone drivers.
	185	*/
	186	int slope;
	187	/*
	188	* @offset: offset of a linear temperature adjustment curve.
	189	* Used by thermal zone drivers (default 0).
	190	*/
	191	int offset;
	192	};
	193
	194	/* Function declarations */
	195	#ifdef CONFIG_THERMAL_OF
	196	struct thermal_zone_device devm_thermal_of_zone_register(struct device dev, int id, void *data,
	197	const struct thermal_zone_device_ops *ops);
	198
	199	void devm_thermal_of_zone_unregister(struct device dev, struct thermal_zone_device tz);
	200
	201	#else
	202
	203	static inline
	204	struct thermal_zone_device devm_thermal_of_zone_register(struct device dev, int id, void *data,
	205	const struct thermal_zone_device_ops *ops)
	206	{
	207	return ERR_PTR(-ENOTSUPP);
	208	}
	209
	210	static inline void devm_thermal_of_zone_unregister(struct device *dev,
	211	struct thermal_zone_device *tz)
	212	{
	213	}
	214	#endif
	215
	216	int for_each_thermal_trip(struct thermal_zone_device *tz,
	217	int (cb)(struct thermal_trip , void *),
	218	void *data);
	219	int thermal_zone_for_each_trip(struct thermal_zone_device *tz,
	220	int (cb)(struct thermal_trip , void *),
	221	void *data);
	222	void thermal_zone_set_trip_temp(struct thermal_zone_device *tz,
	223	struct thermal_trip *trip, int temp);
	224
	225	int thermal_zone_get_crit_temp(struct thermal_zone_device tz, int temp);
	226
	227	#ifdef CONFIG_THERMAL
	228	struct thermal_zone_device *thermal_zone_device_register_with_trips(
	229	const char *type,
	230	const struct thermal_trip *trips,
	231	int num_trips, void *devdata,
	232	const struct thermal_zone_device_ops *ops,
	233	const struct thermal_zone_params *tzp,
	234	unsigned int passive_delay,
	235	unsigned int polling_delay);
	236
	237	struct thermal_zone_device *thermal_tripless_zone_device_register(
	238	const char *type,
	239	void *devdata,
	240	const struct thermal_zone_device_ops *ops,
	241	const struct thermal_zone_params *tzp);
	242
	243	void thermal_zone_device_unregister(struct thermal_zone_device *tz);
	244
	245	void thermal_zone_device_priv(struct thermal_zone_device tzd);
	246	const char thermal_zone_device_type(struct thermal_zone_device tzd);
	247	int thermal_zone_device_id(struct thermal_zone_device *tzd);
	248	struct device thermal_zone_device(struct thermal_zone_device tzd);
	249
	250	void thermal_zone_device_update(struct thermal_zone_device *,
	251	enum thermal_notify_event);
	252
	253	struct thermal_cooling_device thermal_cooling_device_register(const char ,
	254	void , const struct thermal_cooling_device_ops );
	255	struct thermal_cooling_device *
	256	thermal_of_cooling_device_register(struct device_node np, const char , void *,
	257	const struct thermal_cooling_device_ops *);
	258	struct thermal_cooling_device *
	259	devm_thermal_of_cooling_device_register(struct device *dev,
	260	struct device_node *np,
	261	const char type, void devdata,
	262	const struct thermal_cooling_device_ops *ops);
	263	void thermal_cooling_device_update(struct thermal_cooling_device *);
	264	void thermal_cooling_device_unregister(struct thermal_cooling_device *);
	265	struct thermal_zone_device thermal_zone_get_zone_by_name(const char name);
	266	int thermal_zone_get_temp(struct thermal_zone_device tz, int temp);
	267	int thermal_zone_get_slope(struct thermal_zone_device *tz);
	268	int thermal_zone_get_offset(struct thermal_zone_device *tz);
	269	bool thermal_trip_is_bound_to_cdev(struct thermal_zone_device *tz,
	270	const struct thermal_trip *trip,
	271	struct thermal_cooling_device *cdev);
	272
	273	int thermal_zone_device_enable(struct thermal_zone_device *tz);
	274	int thermal_zone_device_disable(struct thermal_zone_device *tz);
	275	void thermal_zone_device_critical(struct thermal_zone_device *tz);
	276	#else
	277	static inline struct thermal_zone_device *thermal_zone_device_register_with_trips(
	278	const char *type,
	279	const struct thermal_trip *trips,
	280	int num_trips, void *devdata,
	281	const struct thermal_zone_device_ops *ops,
	282	const struct thermal_zone_params *tzp,
	283	int passive_delay, int polling_delay)
	284	{ return ERR_PTR(-ENODEV); }
	285
	286	static inline struct thermal_zone_device *thermal_tripless_zone_device_register(
	287	const char *type,
	288	void *devdata,
	289	struct thermal_zone_device_ops *ops,
	290	const struct thermal_zone_params *tzp)
	291	{ return ERR_PTR(-ENODEV); }
	292
	293	static inline void thermal_zone_device_unregister(struct thermal_zone_device *tz)
	294	{ }
	295
	296	static inline void thermal_zone_device_update(struct thermal_zone_device *tz,
	297	enum thermal_notify_event event)
	298	{ }
	299
	300	static inline struct thermal_cooling_device *
	301	thermal_cooling_device_register(const char type, void devdata,
	302	const struct thermal_cooling_device_ops *ops)
	303	{ return ERR_PTR(-ENODEV); }
	304	static inline struct thermal_cooling_device *
	305	thermal_of_cooling_device_register(struct device_node *np,
	306	const char type, void devdata,
	307	const struct thermal_cooling_device_ops *ops)
	308	{ return ERR_PTR(-ENODEV); }
	309	static inline struct thermal_cooling_device *
	310	devm_thermal_of_cooling_device_register(struct device *dev,
	311	struct device_node *np,
	312	const char type, void devdata,
	313	const struct thermal_cooling_device_ops *ops)
	314	{
	315	return ERR_PTR(-ENODEV);
	316	}
	317	static inline void thermal_cooling_device_unregister(
	318	struct thermal_cooling_device *cdev)
	319	{ }
	320	static inline struct thermal_zone_device *thermal_zone_get_zone_by_name(
	321	const char *name)
	322	{ return ERR_PTR(-ENODEV); }
	323	static inline int thermal_zone_get_temp(
	324	struct thermal_zone_device tz, int temp)
	325	{ return -ENODEV; }
	326	static inline int thermal_zone_get_slope(
	327	struct thermal_zone_device *tz)
	328	{ return -ENODEV; }
	329	static inline int thermal_zone_get_offset(
	330	struct thermal_zone_device *tz)
	331	{ return -ENODEV; }
	332
	333	static inline void thermal_zone_device_priv(struct thermal_zone_device tz)
	334	{
	335	return NULL;
	336	}
	337
	338	static inline const char thermal_zone_device_type(struct thermal_zone_device tzd)
	339	{
	340	return NULL;
	341	}
	342
	343	static inline int thermal_zone_device_id(struct thermal_zone_device *tzd)
	344	{
	345	return -ENODEV;
	346	}
	347
	348	static inline int thermal_zone_device_enable(struct thermal_zone_device *tz)
	349	{ return -ENODEV; }
	350
	351	static inline int thermal_zone_device_disable(struct thermal_zone_device *tz)
	352	{ return -ENODEV; }
	353	#endif /* CONFIG_THERMAL */
	354
	355	#endif /* __THERMAL_H__ */