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7e3c0381 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
203d3d4a ZR |
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> | |
203d3d4a ZR |
8 | */ |
9 | ||
10 | #ifndef __THERMAL_H__ | |
11 | #define __THERMAL_H__ | |
12 | ||
a116b5d4 | 13 | #include <linux/of.h> |
203d3d4a ZR |
14 | #include <linux/idr.h> |
15 | #include <linux/device.h> | |
4d0fe749 | 16 | #include <linux/sysfs.h> |
b1569e99 | 17 | #include <linux/workqueue.h> |
af6c9f16 | 18 | #include <uapi/linux/thermal.h> |
203d3d4a | 19 | |
23064088 | 20 | #define THERMAL_MAX_TRIPS 12 |
23064088 | 21 | |
57df8106 ZR |
22 | /* invalid cooling state */ |
23 | #define THERMAL_CSTATE_INVALID -1UL | |
24 | ||
23064088 | 25 | /* No upper/lower limit requirement */ |
a940cb34 | 26 | #define THERMAL_NO_LIMIT ((u32)~0) |
23064088 | 27 | |
6cd9e9f6 KS |
28 | /* Default weight of a bound cooling device */ |
29 | #define THERMAL_WEIGHT_DEFAULT 0 | |
30 | ||
bb431ba2 ZR |
31 | /* use value, which < 0K, to indicate an invalid/uninitialized temperature */ |
32 | #define THERMAL_TEMP_INVALID -274000 | |
33 | ||
203d3d4a ZR |
34 | struct thermal_zone_device; |
35 | struct thermal_cooling_device; | |
35b11d2e | 36 | struct thermal_instance; |
c68df440 | 37 | struct thermal_attr; |
203d3d4a | 38 | |
601f3d42 ZR |
39 | enum thermal_trend { |
40 | THERMAL_TREND_STABLE, /* temperature is stable */ | |
41 | THERMAL_TREND_RAISING, /* temperature is raising */ | |
42 | THERMAL_TREND_DROPPING, /* temperature is dropping */ | |
d069015e ZR |
43 | THERMAL_TREND_RAISE_FULL, /* apply highest cooling action */ |
44 | THERMAL_TREND_DROP_FULL, /* apply lowest cooling action */ | |
601f3d42 ZR |
45 | }; |
46 | ||
0e70f466 SP |
47 | /* Thermal notification reason */ |
48 | enum thermal_notify_event { | |
49 | THERMAL_EVENT_UNSPECIFIED, /* Unspecified event */ | |
50 | THERMAL_EVENT_TEMP_SAMPLE, /* New Temperature sample */ | |
51 | THERMAL_TRIP_VIOLATED, /* TRIP Point violation */ | |
52 | THERMAL_TRIP_CHANGED, /* TRIP Point temperature changed */ | |
53 | THERMAL_DEVICE_DOWN, /* Thermal device is down */ | |
54 | THERMAL_DEVICE_UP, /* Thermal device is up after a down event */ | |
55 | THERMAL_DEVICE_POWER_CAPABILITY_CHANGED, /* power capability changed */ | |
38e44da5 | 56 | THERMAL_TABLE_CHANGED, /* Thermal table(s) changed */ |
88052319 | 57 | THERMAL_EVENT_KEEP_ALIVE, /* Request for user space handler to respond */ |
0e70f466 SP |
58 | }; |
59 | ||
203d3d4a ZR |
60 | struct thermal_zone_device_ops { |
61 | int (*bind) (struct thermal_zone_device *, | |
62 | struct thermal_cooling_device *); | |
63 | int (*unbind) (struct thermal_zone_device *, | |
64 | struct thermal_cooling_device *); | |
17e8351a | 65 | int (*get_temp) (struct thermal_zone_device *, int *); |
060c034a | 66 | int (*set_trips) (struct thermal_zone_device *, int, int); |
f5e50bf4 | 67 | int (*change_mode) (struct thermal_zone_device *, |
6503e5df MG |
68 | enum thermal_device_mode); |
69 | int (*get_trip_type) (struct thermal_zone_device *, int, | |
70 | enum thermal_trip_type *); | |
17e8351a SH |
71 | int (*get_trip_temp) (struct thermal_zone_device *, int, int *); |
72 | int (*set_trip_temp) (struct thermal_zone_device *, int, int); | |
73 | int (*get_trip_hyst) (struct thermal_zone_device *, int, int *); | |
74 | int (*set_trip_hyst) (struct thermal_zone_device *, int, int); | |
75 | int (*get_crit_temp) (struct thermal_zone_device *, int *); | |
76 | int (*set_emul_temp) (struct thermal_zone_device *, int); | |
601f3d42 ZR |
77 | int (*get_trend) (struct thermal_zone_device *, int, |
78 | enum thermal_trend *); | |
d7203eed DL |
79 | void (*hot)(struct thermal_zone_device *); |
80 | void (*critical)(struct thermal_zone_device *); | |
203d3d4a ZR |
81 | }; |
82 | ||
83 | struct thermal_cooling_device_ops { | |
6503e5df MG |
84 | int (*get_max_state) (struct thermal_cooling_device *, unsigned long *); |
85 | int (*get_cur_state) (struct thermal_cooling_device *, unsigned long *); | |
86 | int (*set_cur_state) (struct thermal_cooling_device *, unsigned long); | |
ecd1d2a3 | 87 | int (*get_requested_power)(struct thermal_cooling_device *, u32 *); |
88 | int (*state2power)(struct thermal_cooling_device *, unsigned long, u32 *); | |
89 | int (*power2state)(struct thermal_cooling_device *, u32, unsigned long *); | |
203d3d4a ZR |
90 | }; |
91 | ||
203d3d4a ZR |
92 | struct thermal_cooling_device { |
93 | int id; | |
58483761 | 94 | char *type; |
203d3d4a | 95 | struct device device; |
4e5e4705 | 96 | struct device_node *np; |
203d3d4a | 97 | void *devdata; |
8ea22951 | 98 | void *stats; |
5b275ce2 | 99 | const struct thermal_cooling_device_ops *ops; |
ce119f83 | 100 | bool updated; /* true if the cooling device does not need update */ |
f4a821ce | 101 | struct mutex lock; /* protect thermal_instances list */ |
b5e4ae62 | 102 | struct list_head thermal_instances; |
203d3d4a ZR |
103 | struct list_head node; |
104 | }; | |
105 | ||
c708a98f JM |
106 | /** |
107 | * struct thermal_zone_device - structure for a thermal zone | |
108 | * @id: unique id number for each thermal zone | |
109 | * @type: the thermal zone device type | |
110 | * @device: &struct device for this thermal zone | |
111 | * @trip_temp_attrs: attributes for trip points for sysfs: trip temperature | |
112 | * @trip_type_attrs: attributes for trip points for sysfs: trip type | |
113 | * @trip_hyst_attrs: attributes for trip points for sysfs: trip hysteresis | |
cbba1d71 | 114 | * @mode: current mode of this thermal zone |
c708a98f JM |
115 | * @devdata: private pointer for device private data |
116 | * @trips: number of trip points the thermal zone supports | |
81ad4276 | 117 | * @trips_disabled; bitmap for disabled trips |
17d399cd DL |
118 | * @passive_delay_jiffies: number of jiffies to wait between polls when |
119 | * performing passive cooling. | |
17d399cd DL |
120 | * @polling_delay_jiffies: number of jiffies to wait between polls when |
121 | * checking whether trip points have been crossed (0 for | |
122 | * interrupt driven systems) | |
c708a98f JM |
123 | * @temperature: current temperature. This is only for core code, |
124 | * drivers should use thermal_zone_get_temp() to get the | |
125 | * current temperature | |
126 | * @last_temperature: previous temperature read | |
127 | * @emul_temperature: emulated temperature when using CONFIG_THERMAL_EMULATION | |
128 | * @passive: 1 if you've crossed a passive trip point, 0 otherwise. | |
060c034a SH |
129 | * @prev_low_trip: the low current temperature if you've crossed a passive |
130 | trip point. | |
131 | * @prev_high_trip: the above current temperature if you've crossed a | |
132 | passive trip point. | |
4511f716 | 133 | * @need_update: if equals 1, thermal_zone_device_update needs to be invoked. |
c708a98f JM |
134 | * @ops: operations this &thermal_zone_device supports |
135 | * @tzp: thermal zone parameters | |
136 | * @governor: pointer to the governor for this thermal zone | |
e33df1d2 | 137 | * @governor_data: private pointer for governor data |
c708a98f | 138 | * @thermal_instances: list of &struct thermal_instance of this thermal zone |
b31ef828 | 139 | * @ida: &struct ida to generate unique id for this zone's cooling |
c708a98f JM |
140 | * devices |
141 | * @lock: lock to protect thermal_instances list | |
142 | * @node: node in thermal_tz_list (in thermal_core.c) | |
143 | * @poll_queue: delayed work for polling | |
0e70f466 | 144 | * @notify_event: Last notification event |
c708a98f | 145 | */ |
203d3d4a ZR |
146 | struct thermal_zone_device { |
147 | int id; | |
148 | char type[THERMAL_NAME_LENGTH]; | |
149 | struct device device; | |
4d0fe749 | 150 | struct attribute_group trips_attribute_group; |
c56f5c03 D |
151 | struct thermal_attr *trip_temp_attrs; |
152 | struct thermal_attr *trip_type_attrs; | |
27365a6c | 153 | struct thermal_attr *trip_hyst_attrs; |
cbba1d71 | 154 | enum thermal_device_mode mode; |
203d3d4a ZR |
155 | void *devdata; |
156 | int trips; | |
81ad4276 | 157 | unsigned long trips_disabled; /* bitmap for disabled trips */ |
17d399cd DL |
158 | unsigned long passive_delay_jiffies; |
159 | unsigned long polling_delay_jiffies; | |
601f3d42 | 160 | int temperature; |
b1569e99 | 161 | int last_temperature; |
e6e238c3 | 162 | int emul_temperature; |
908b9fb7 | 163 | int passive; |
060c034a SH |
164 | int prev_low_trip; |
165 | int prev_high_trip; | |
4511f716 | 166 | atomic_t need_update; |
4e5e4705 | 167 | struct thermal_zone_device_ops *ops; |
6b775e87 | 168 | struct thermal_zone_params *tzp; |
a4a15485 | 169 | struct thermal_governor *governor; |
e33df1d2 | 170 | void *governor_data; |
2d374139 | 171 | struct list_head thermal_instances; |
b31ef828 | 172 | struct ida ida; |
c708a98f | 173 | struct mutex lock; |
203d3d4a | 174 | struct list_head node; |
b1569e99 | 175 | struct delayed_work poll_queue; |
0e70f466 | 176 | enum thermal_notify_event notify_event; |
203d3d4a | 177 | }; |
4cb18728 | 178 | |
c708a98f JM |
179 | /** |
180 | * struct thermal_governor - structure that holds thermal governor information | |
181 | * @name: name of the governor | |
e33df1d2 JM |
182 | * @bind_to_tz: callback called when binding to a thermal zone. If it |
183 | * returns 0, the governor is bound to the thermal zone, | |
184 | * otherwise it fails. | |
185 | * @unbind_from_tz: callback called when a governor is unbound from a | |
186 | * thermal zone. | |
c708a98f JM |
187 | * @throttle: callback called for every trip point even if temperature is |
188 | * below the trip point temperature | |
189 | * @governor_list: node in thermal_governor_list (in thermal_core.c) | |
190 | */ | |
a4a15485 D |
191 | struct thermal_governor { |
192 | char name[THERMAL_NAME_LENGTH]; | |
e33df1d2 JM |
193 | int (*bind_to_tz)(struct thermal_zone_device *tz); |
194 | void (*unbind_from_tz)(struct thermal_zone_device *tz); | |
a4a15485 D |
195 | int (*throttle)(struct thermal_zone_device *tz, int trip); |
196 | struct list_head governor_list; | |
a4a15485 D |
197 | }; |
198 | ||
ef873947 D |
199 | /* Structure that holds binding parameters for a zone */ |
200 | struct thermal_bind_params { | |
201 | struct thermal_cooling_device *cdev; | |
202 | ||
203 | /* | |
204 | * This is a measure of 'how effectively these devices can | |
bcdcbbc7 JM |
205 | * cool 'this' thermal zone. It shall be determined by |
206 | * platform characterization. This value is relative to the | |
207 | * rest of the weights so a cooling device whose weight is | |
208 | * double that of another cooling device is twice as | |
eaf7b460 | 209 | * effective. See Documentation/driver-api/thermal/sysfs-api.rst for more |
bcdcbbc7 | 210 | * information. |
ef873947 D |
211 | */ |
212 | int weight; | |
213 | ||
214 | /* | |
215 | * This is a bit mask that gives the binding relation between this | |
216 | * thermal zone and cdev, for a particular trip point. | |
eaf7b460 | 217 | * See Documentation/driver-api/thermal/sysfs-api.rst for more information. |
ef873947 D |
218 | */ |
219 | int trip_mask; | |
a8892d83 EV |
220 | |
221 | /* | |
222 | * This is an array of cooling state limits. Must have exactly | |
223 | * 2 * thermal_zone.number_of_trip_points. It is an array consisting | |
224 | * of tuples <lower-state upper-state> of state limits. Each trip | |
225 | * will be associated with one state limit tuple when binding. | |
226 | * A NULL pointer means <THERMAL_NO_LIMITS THERMAL_NO_LIMITS> | |
227 | * on all trips. | |
228 | */ | |
229 | unsigned long *binding_limits; | |
ef873947 D |
230 | int (*match) (struct thermal_zone_device *tz, |
231 | struct thermal_cooling_device *cdev); | |
232 | }; | |
233 | ||
234 | /* Structure to define Thermal Zone parameters */ | |
235 | struct thermal_zone_params { | |
a4a15485 | 236 | char governor_name[THERMAL_NAME_LENGTH]; |
ccba4ffd EV |
237 | |
238 | /* | |
239 | * a boolean to indicate if the thermal to hwmon sysfs interface | |
240 | * is required. when no_hwmon == false, a hwmon sysfs interface | |
241 | * will be created. when no_hwmon == true, nothing will be done | |
242 | */ | |
243 | bool no_hwmon; | |
244 | ||
ef873947 D |
245 | int num_tbps; /* Number of tbp entries */ |
246 | struct thermal_bind_params *tbp; | |
6b775e87 JM |
247 | |
248 | /* | |
249 | * Sustainable power (heat) that this thermal zone can dissipate in | |
250 | * mW | |
251 | */ | |
252 | u32 sustainable_power; | |
253 | ||
254 | /* | |
255 | * Proportional parameter of the PID controller when | |
256 | * overshooting (i.e., when temperature is below the target) | |
257 | */ | |
258 | s32 k_po; | |
259 | ||
260 | /* | |
261 | * Proportional parameter of the PID controller when | |
262 | * undershooting | |
263 | */ | |
264 | s32 k_pu; | |
265 | ||
266 | /* Integral parameter of the PID controller */ | |
267 | s32 k_i; | |
268 | ||
269 | /* Derivative parameter of the PID controller */ | |
270 | s32 k_d; | |
271 | ||
272 | /* threshold below which the error is no longer accumulated */ | |
273 | s32 integral_cutoff; | |
9d0be7f4 EV |
274 | |
275 | /* | |
276 | * @slope: slope of a linear temperature adjustment curve. | |
277 | * Used by thermal zone drivers. | |
278 | */ | |
279 | int slope; | |
280 | /* | |
281 | * @offset: offset of a linear temperature adjustment curve. | |
282 | * Used by thermal zone drivers (default 0). | |
283 | */ | |
284 | int offset; | |
ef873947 D |
285 | }; |
286 | ||
2251aef6 | 287 | /** |
454f2ed4 | 288 | * struct thermal_zone_of_device_ops - callbacks for handling DT based zones |
2251aef6 EV |
289 | * |
290 | * Mandatory: | |
291 | * @get_temp: a pointer to a function that reads the sensor temperature. | |
292 | * | |
293 | * Optional: | |
294 | * @get_trend: a pointer to a function that reads the sensor temperature trend. | |
826386e7 SH |
295 | * @set_trips: a pointer to a function that sets a temperature window. When |
296 | * this window is left the driver must inform the thermal core via | |
297 | * thermal_zone_device_update. | |
184a4bf6 LM |
298 | * @set_emul_temp: a pointer to a function that sets sensor emulated |
299 | * temperature. | |
5a5e78cd CW |
300 | * @set_trip_temp: a pointer to a function that sets the trip temperature on |
301 | * hardware. | |
2251aef6 EV |
302 | */ |
303 | struct thermal_zone_of_device_ops { | |
17e8351a | 304 | int (*get_temp)(void *, int *); |
e78eaf45 | 305 | int (*get_trend)(void *, int, enum thermal_trend *); |
826386e7 | 306 | int (*set_trips)(void *, int, int); |
17e8351a | 307 | int (*set_emul_temp)(void *, int); |
c3509521 | 308 | int (*set_trip_temp)(void *, int, int); |
2251aef6 EV |
309 | }; |
310 | ||
23064088 | 311 | /* Function declarations */ |
4e5e4705 | 312 | #ifdef CONFIG_THERMAL_OF |
34471abf AH |
313 | int thermal_zone_of_get_sensor_id(struct device_node *tz_np, |
314 | struct device_node *sensor_np, | |
315 | u32 *id); | |
4e5e4705 | 316 | struct thermal_zone_device * |
2251aef6 EV |
317 | thermal_zone_of_sensor_register(struct device *dev, int id, void *data, |
318 | const struct thermal_zone_of_device_ops *ops); | |
4e5e4705 EV |
319 | void thermal_zone_of_sensor_unregister(struct device *dev, |
320 | struct thermal_zone_device *tz); | |
e498b498 LD |
321 | struct thermal_zone_device *devm_thermal_zone_of_sensor_register( |
322 | struct device *dev, int id, void *data, | |
323 | const struct thermal_zone_of_device_ops *ops); | |
324 | void devm_thermal_zone_of_sensor_unregister(struct device *dev, | |
325 | struct thermal_zone_device *tz); | |
4e5e4705 | 326 | #else |
34471abf | 327 | |
15a26319 | 328 | static inline int thermal_zone_of_get_sensor_id(struct device_node *tz_np, |
34471abf AH |
329 | struct device_node *sensor_np, |
330 | u32 *id) | |
331 | { | |
332 | return -ENOENT; | |
333 | } | |
4e5e4705 | 334 | static inline struct thermal_zone_device * |
2251aef6 EV |
335 | thermal_zone_of_sensor_register(struct device *dev, int id, void *data, |
336 | const struct thermal_zone_of_device_ops *ops) | |
4e5e4705 | 337 | { |
cd33dc9a | 338 | return ERR_PTR(-ENODEV); |
4e5e4705 EV |
339 | } |
340 | ||
341 | static inline | |
342 | void thermal_zone_of_sensor_unregister(struct device *dev, | |
343 | struct thermal_zone_device *tz) | |
344 | { | |
345 | } | |
346 | ||
e498b498 LD |
347 | static inline struct thermal_zone_device *devm_thermal_zone_of_sensor_register( |
348 | struct device *dev, int id, void *data, | |
349 | const struct thermal_zone_of_device_ops *ops) | |
350 | { | |
351 | return ERR_PTR(-ENODEV); | |
352 | } | |
353 | ||
354 | static inline | |
355 | void devm_thermal_zone_of_sensor_unregister(struct device *dev, | |
356 | struct thermal_zone_device *tz) | |
357 | { | |
358 | } | |
359 | ||
4e5e4705 | 360 | #endif |
12ca7188 | 361 | |
60518260 | 362 | #ifdef CONFIG_THERMAL |
4b1bf587 | 363 | struct thermal_zone_device *thermal_zone_device_register(const char *, int, int, |
4e5e4705 | 364 | void *, struct thermal_zone_device_ops *, |
6b775e87 | 365 | struct thermal_zone_params *, int, int); |
203d3d4a ZR |
366 | void thermal_zone_device_unregister(struct thermal_zone_device *); |
367 | ||
368 | int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int, | |
9d99842f | 369 | struct thermal_cooling_device *, |
6cd9e9f6 KS |
370 | unsigned long, unsigned long, |
371 | unsigned int); | |
203d3d4a ZR |
372 | int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int, |
373 | struct thermal_cooling_device *); | |
0e70f466 SP |
374 | void thermal_zone_device_update(struct thermal_zone_device *, |
375 | enum thermal_notify_event); | |
23064088 | 376 | |
f991de53 JFD |
377 | struct thermal_cooling_device *thermal_cooling_device_register(const char *, |
378 | void *, const struct thermal_cooling_device_ops *); | |
a116b5d4 | 379 | struct thermal_cooling_device * |
f991de53 | 380 | thermal_of_cooling_device_register(struct device_node *np, const char *, void *, |
a116b5d4 | 381 | const struct thermal_cooling_device_ops *); |
b4ab114c GR |
382 | struct thermal_cooling_device * |
383 | devm_thermal_of_cooling_device_register(struct device *dev, | |
384 | struct device_node *np, | |
385 | char *type, void *devdata, | |
386 | const struct thermal_cooling_device_ops *ops); | |
203d3d4a | 387 | void thermal_cooling_device_unregister(struct thermal_cooling_device *); |
63c4d919 | 388 | struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name); |
17e8351a | 389 | int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp); |
4a7069a3 RN |
390 | int thermal_zone_get_slope(struct thermal_zone_device *tz); |
391 | int thermal_zone_get_offset(struct thermal_zone_device *tz); | |
af06216a | 392 | |
ac5d9ecc AP |
393 | int thermal_zone_device_enable(struct thermal_zone_device *tz); |
394 | int thermal_zone_device_disable(struct thermal_zone_device *tz); | |
d7203eed | 395 | void thermal_zone_device_critical(struct thermal_zone_device *tz); |
12ca7188 NM |
396 | #else |
397 | static inline struct thermal_zone_device *thermal_zone_device_register( | |
398 | const char *type, int trips, int mask, void *devdata, | |
399 | struct thermal_zone_device_ops *ops, | |
023b7b07 | 400 | struct thermal_zone_params *tzp, |
12ca7188 NM |
401 | int passive_delay, int polling_delay) |
402 | { return ERR_PTR(-ENODEV); } | |
403 | static inline void thermal_zone_device_unregister( | |
404 | struct thermal_zone_device *tz) | |
405 | { } | |
12ca7188 | 406 | static inline struct thermal_cooling_device * |
fb836107 | 407 | thermal_cooling_device_register(const char *type, void *devdata, |
12ca7188 NM |
408 | const struct thermal_cooling_device_ops *ops) |
409 | { return ERR_PTR(-ENODEV); } | |
410 | static inline struct thermal_cooling_device * | |
411 | thermal_of_cooling_device_register(struct device_node *np, | |
fb836107 AB |
412 | const char *type, void *devdata, |
413 | const struct thermal_cooling_device_ops *ops) | |
12ca7188 | 414 | { return ERR_PTR(-ENODEV); } |
b4ab114c GR |
415 | static inline struct thermal_cooling_device * |
416 | devm_thermal_of_cooling_device_register(struct device *dev, | |
417 | struct device_node *np, | |
418 | char *type, void *devdata, | |
419 | const struct thermal_cooling_device_ops *ops) | |
420 | { | |
421 | return ERR_PTR(-ENODEV); | |
422 | } | |
12ca7188 NM |
423 | static inline void thermal_cooling_device_unregister( |
424 | struct thermal_cooling_device *cdev) | |
425 | { } | |
426 | static inline struct thermal_zone_device *thermal_zone_get_zone_by_name( | |
427 | const char *name) | |
428 | { return ERR_PTR(-ENODEV); } | |
429 | static inline int thermal_zone_get_temp( | |
17e8351a | 430 | struct thermal_zone_device *tz, int *temp) |
12ca7188 | 431 | { return -ENODEV; } |
4a7069a3 RN |
432 | static inline int thermal_zone_get_slope( |
433 | struct thermal_zone_device *tz) | |
434 | { return -ENODEV; } | |
435 | static inline int thermal_zone_get_offset( | |
436 | struct thermal_zone_device *tz) | |
437 | { return -ENODEV; } | |
f0129c23 | 438 | |
ac5d9ecc AP |
439 | static inline int thermal_zone_device_enable(struct thermal_zone_device *tz) |
440 | { return -ENODEV; } | |
441 | ||
442 | static inline int thermal_zone_device_disable(struct thermal_zone_device *tz) | |
443 | { return -ENODEV; } | |
12ca7188 NM |
444 | #endif /* CONFIG_THERMAL */ |
445 | ||
a0dd25b2 | 446 | #endif /* __THERMAL_H__ */ |