include/linux/thermal.h

1 /* SPDX-License-Identifier: GPL-2.0 */
3  *  thermal.h  ($Revision: 0 $)
19 #include <uapi/linux/thermal.h>
21 #define THERMAL_TRIPS_NONE	-1
25 #define THERMAL_CSTATE_INVALID -1UL
34 #define THERMAL_TEMP_INVALID	-274000
49 /* Thermal notification reason */
55 	THERMAL_DEVICE_DOWN, /* Thermal device is down */
56 	THERMAL_DEVICE_UP, /* Thermal device is up after a down event */
58 	THERMAL_TABLE_CHANGED, /* Thermal table(s) changed */
114  * struct thermal_zone_device - structure for a thermal zone
115  * @id:		unique id number for each thermal zone
116  * @type:	the thermal zone device type
117  * @device:	&struct device for this thermal zone
121  * @mode:		current mode of this thermal zone
123  * @trips:	number of trip points the thermal zone supports
142  *			step-wise governor.
145  * @tzp:	thermal zone parameters
146  * @governor:	pointer to the governor for this thermal zone
148  * @thermal_instances:	list of &struct thermal_instance of this thermal zone
149  * @ida:	&struct ida to generate unique id for this zone's cooling
193  * struct thermal_governor - structure that holds thermal governor information
195  * @bind_to_tz: callback called when binding to a thermal zone.  If it
196  *		returns 0, the governor is bound to the thermal zone,
199  *			thermal zone.
214 /* Structure that holds binding parameters for a zone */
220 	 * cool 'this' thermal zone. It shall be determined by
224 	 * effective. See Documentation/driver-api/thermal/sysfs-api.rst for more
231 	 * thermal zone and cdev, for a particular trip point.
232 	 * See Documentation/driver-api/thermal/sysfs-api.rst for more information.
239 	 * of tuples <lower-state upper-state> of state limits. Each trip
251 /* Structure to define Thermal Zone parameters */
256 	 * a boolean to indicate if the thermal to hwmon sysfs interface
266 	 * Sustainable power (heat) that this thermal zone can dissipate in
294 	 * 		Used by thermal zone drivers.
299 	 * 		Used by thermal zone drivers (default 0).
307  * struct thermal_zone_of_device_ops - scallbacks for handling DT based zones
315  *	       this window is left the driver must inform the thermal core via
353 	return -ENOENT;  in thermal_zone_of_get_sensor_id()
359 	return ERR_PTR(-ENODEV);  in thermal_zone_of_sensor_register()
372 	return ERR_PTR(-ENODEV);  in devm_thermal_zone_of_sensor_register()
425 { return ERR_PTR(-ENODEV); }  in thermal_zone_device_register()
432 { return ERR_PTR(-ENODEV); }  in thermal_cooling_device_register()
437 { return ERR_PTR(-ENODEV); }  in thermal_of_cooling_device_register()
444 	return ERR_PTR(-ENODEV);  in devm_thermal_of_cooling_device_register()
451 { return ERR_PTR(-ENODEV); }  in thermal_zone_get_zone_by_name()
454 { return -ENODEV; }  in thermal_zone_get_temp()
457 { return -ENODEV; }  in thermal_zone_get_slope()
460 { return -ENODEV; }  in thermal_zone_get_offset()
469 { return -ENODEV; }  in thermal_zone_device_enable()
472 { return -ENODEV; }  in thermal_zone_device_disable()
476 { return -ENODEV; }  in thermal_zone_device_is_enabled()