include/linux/thermal.h - third_party/kernel - Git at Google


            
            /* 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__ */
	/* 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__ */