xref: /linux/drivers/thermal/qcom/tsens.h (revision 165f2d2858013253042809df082b8df7e34e86d7)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * Copyright (c) 2015, The Linux Foundation. All rights reserved.
4  */
5 
6 #ifndef __QCOM_TSENS_H__
7 #define __QCOM_TSENS_H__
8 
9 #define ONE_PT_CALIB		0x1
10 #define ONE_PT_CALIB2		0x2
11 #define TWO_PT_CALIB		0x3
12 #define CAL_DEGC_PT1		30
13 #define CAL_DEGC_PT2		120
14 #define SLOPE_FACTOR		1000
15 #define SLOPE_DEFAULT		3200
16 #define THRESHOLD_MAX_ADC_CODE	0x3ff
17 #define THRESHOLD_MIN_ADC_CODE	0x0
18 
19 #include <linux/interrupt.h>
20 #include <linux/thermal.h>
21 #include <linux/regmap.h>
22 #include <linux/slab.h>
23 
24 struct tsens_priv;
25 
26 /* IP version numbers in ascending order */
27 enum tsens_ver {
28 	VER_0_1 = 0,
29 	VER_1_X,
30 	VER_2_X,
31 };
32 
33 enum tsens_irq_type {
34 	LOWER,
35 	UPPER,
36 	CRITICAL,
37 };
38 
39 /**
40  * struct tsens_sensor - data for each sensor connected to the tsens device
41  * @priv: tsens device instance that this sensor is connected to
42  * @tzd: pointer to the thermal zone that this sensor is in
43  * @offset: offset of temperature adjustment curve
44  * @hw_id: HW ID can be used in case of platform-specific IDs
45  * @slope: slope of temperature adjustment curve
46  * @status: 8960-specific variable to track 8960 and 8660 status register offset
47  */
48 struct tsens_sensor {
49 	struct tsens_priv		*priv;
50 	struct thermal_zone_device	*tzd;
51 	int				offset;
52 	unsigned int			hw_id;
53 	int				slope;
54 	u32				status;
55 };
56 
57 /**
58  * struct tsens_ops - operations as supported by the tsens device
59  * @init: Function to initialize the tsens device
60  * @calibrate: Function to calibrate the tsens device
61  * @get_temp: Function which returns the temp in millidegC
62  * @enable: Function to enable (clocks/power) tsens device
63  * @disable: Function to disable the tsens device
64  * @suspend: Function to suspend the tsens device
65  * @resume: Function to resume the tsens device
66  * @get_trend: Function to get the thermal/temp trend
67  */
68 struct tsens_ops {
69 	/* mandatory callbacks */
70 	int (*init)(struct tsens_priv *priv);
71 	int (*calibrate)(struct tsens_priv *priv);
72 	int (*get_temp)(const struct tsens_sensor *s, int *temp);
73 	/* optional callbacks */
74 	int (*enable)(struct tsens_priv *priv, int i);
75 	void (*disable)(struct tsens_priv *priv);
76 	int (*suspend)(struct tsens_priv *priv);
77 	int (*resume)(struct tsens_priv *priv);
78 	int (*get_trend)(struct tsens_sensor *s, enum thermal_trend *trend);
79 };
80 
81 #define REG_FIELD_FOR_EACH_SENSOR11(_name, _offset, _startbit, _stopbit) \
82 	[_name##_##0]  = REG_FIELD(_offset,      _startbit, _stopbit),	\
83 	[_name##_##1]  = REG_FIELD(_offset +  4, _startbit, _stopbit), \
84 	[_name##_##2]  = REG_FIELD(_offset +  8, _startbit, _stopbit), \
85 	[_name##_##3]  = REG_FIELD(_offset + 12, _startbit, _stopbit), \
86 	[_name##_##4]  = REG_FIELD(_offset + 16, _startbit, _stopbit), \
87 	[_name##_##5]  = REG_FIELD(_offset + 20, _startbit, _stopbit), \
88 	[_name##_##6]  = REG_FIELD(_offset + 24, _startbit, _stopbit), \
89 	[_name##_##7]  = REG_FIELD(_offset + 28, _startbit, _stopbit), \
90 	[_name##_##8]  = REG_FIELD(_offset + 32, _startbit, _stopbit), \
91 	[_name##_##9]  = REG_FIELD(_offset + 36, _startbit, _stopbit), \
92 	[_name##_##10] = REG_FIELD(_offset + 40, _startbit, _stopbit)
93 
94 #define REG_FIELD_FOR_EACH_SENSOR16(_name, _offset, _startbit, _stopbit) \
95 	[_name##_##0]  = REG_FIELD(_offset,      _startbit, _stopbit),	\
96 	[_name##_##1]  = REG_FIELD(_offset +  4, _startbit, _stopbit), \
97 	[_name##_##2]  = REG_FIELD(_offset +  8, _startbit, _stopbit), \
98 	[_name##_##3]  = REG_FIELD(_offset + 12, _startbit, _stopbit), \
99 	[_name##_##4]  = REG_FIELD(_offset + 16, _startbit, _stopbit), \
100 	[_name##_##5]  = REG_FIELD(_offset + 20, _startbit, _stopbit), \
101 	[_name##_##6]  = REG_FIELD(_offset + 24, _startbit, _stopbit), \
102 	[_name##_##7]  = REG_FIELD(_offset + 28, _startbit, _stopbit), \
103 	[_name##_##8]  = REG_FIELD(_offset + 32, _startbit, _stopbit), \
104 	[_name##_##9]  = REG_FIELD(_offset + 36, _startbit, _stopbit), \
105 	[_name##_##10] = REG_FIELD(_offset + 40, _startbit, _stopbit), \
106 	[_name##_##11] = REG_FIELD(_offset + 44, _startbit, _stopbit), \
107 	[_name##_##12] = REG_FIELD(_offset + 48, _startbit, _stopbit), \
108 	[_name##_##13] = REG_FIELD(_offset + 52, _startbit, _stopbit), \
109 	[_name##_##14] = REG_FIELD(_offset + 56, _startbit, _stopbit), \
110 	[_name##_##15] = REG_FIELD(_offset + 60, _startbit, _stopbit)
111 
112 #define REG_FIELD_SPLIT_BITS_0_15(_name, _offset)		\
113 	[_name##_##0]  = REG_FIELD(_offset,  0,  0),		\
114 	[_name##_##1]  = REG_FIELD(_offset,  1,  1),	\
115 	[_name##_##2]  = REG_FIELD(_offset,  2,  2),	\
116 	[_name##_##3]  = REG_FIELD(_offset,  3,  3),	\
117 	[_name##_##4]  = REG_FIELD(_offset,  4,  4),	\
118 	[_name##_##5]  = REG_FIELD(_offset,  5,  5),	\
119 	[_name##_##6]  = REG_FIELD(_offset,  6,  6),	\
120 	[_name##_##7]  = REG_FIELD(_offset,  7,  7),	\
121 	[_name##_##8]  = REG_FIELD(_offset,  8,  8),	\
122 	[_name##_##9]  = REG_FIELD(_offset,  9,  9),	\
123 	[_name##_##10] = REG_FIELD(_offset, 10, 10),	\
124 	[_name##_##11] = REG_FIELD(_offset, 11, 11),	\
125 	[_name##_##12] = REG_FIELD(_offset, 12, 12),	\
126 	[_name##_##13] = REG_FIELD(_offset, 13, 13),	\
127 	[_name##_##14] = REG_FIELD(_offset, 14, 14),	\
128 	[_name##_##15] = REG_FIELD(_offset, 15, 15)
129 
130 #define REG_FIELD_SPLIT_BITS_16_31(_name, _offset)		\
131 	[_name##_##0]  = REG_FIELD(_offset, 16, 16),		\
132 	[_name##_##1]  = REG_FIELD(_offset, 17, 17),	\
133 	[_name##_##2]  = REG_FIELD(_offset, 18, 18),	\
134 	[_name##_##3]  = REG_FIELD(_offset, 19, 19),	\
135 	[_name##_##4]  = REG_FIELD(_offset, 20, 20),	\
136 	[_name##_##5]  = REG_FIELD(_offset, 21, 21),	\
137 	[_name##_##6]  = REG_FIELD(_offset, 22, 22),	\
138 	[_name##_##7]  = REG_FIELD(_offset, 23, 23),	\
139 	[_name##_##8]  = REG_FIELD(_offset, 24, 24),	\
140 	[_name##_##9]  = REG_FIELD(_offset, 25, 25),	\
141 	[_name##_##10] = REG_FIELD(_offset, 26, 26),	\
142 	[_name##_##11] = REG_FIELD(_offset, 27, 27),	\
143 	[_name##_##12] = REG_FIELD(_offset, 28, 28),	\
144 	[_name##_##13] = REG_FIELD(_offset, 29, 29),	\
145 	[_name##_##14] = REG_FIELD(_offset, 30, 30),	\
146 	[_name##_##15] = REG_FIELD(_offset, 31, 31)
147 
148 /*
149  * reg_field IDs to use as an index into an array
150  * If you change the order of the entries, check the devm_regmap_field_alloc()
151  * calls in init_common()
152  */
153 enum regfield_ids {
154 	/* ----- SROT ------ */
155 	/* HW_VER */
156 	VER_MAJOR,
157 	VER_MINOR,
158 	VER_STEP,
159 	/* CTRL_OFFSET */
160 	TSENS_EN,
161 	TSENS_SW_RST,
162 	SENSOR_EN,
163 	CODE_OR_TEMP,
164 
165 	/* ----- TM ------ */
166 	/* TRDY */
167 	TRDY,
168 	/* INTERRUPT ENABLE */
169 	INT_EN,	/* v2+ has separate enables for crit, upper and lower irq */
170 	/* STATUS */
171 	LAST_TEMP_0,	/* Last temperature reading */
172 	LAST_TEMP_1,
173 	LAST_TEMP_2,
174 	LAST_TEMP_3,
175 	LAST_TEMP_4,
176 	LAST_TEMP_5,
177 	LAST_TEMP_6,
178 	LAST_TEMP_7,
179 	LAST_TEMP_8,
180 	LAST_TEMP_9,
181 	LAST_TEMP_10,
182 	LAST_TEMP_11,
183 	LAST_TEMP_12,
184 	LAST_TEMP_13,
185 	LAST_TEMP_14,
186 	LAST_TEMP_15,
187 	VALID_0,		/* VALID reading or not */
188 	VALID_1,
189 	VALID_2,
190 	VALID_3,
191 	VALID_4,
192 	VALID_5,
193 	VALID_6,
194 	VALID_7,
195 	VALID_8,
196 	VALID_9,
197 	VALID_10,
198 	VALID_11,
199 	VALID_12,
200 	VALID_13,
201 	VALID_14,
202 	VALID_15,
203 	LOWER_STATUS_0,	/* LOWER threshold violated */
204 	LOWER_STATUS_1,
205 	LOWER_STATUS_2,
206 	LOWER_STATUS_3,
207 	LOWER_STATUS_4,
208 	LOWER_STATUS_5,
209 	LOWER_STATUS_6,
210 	LOWER_STATUS_7,
211 	LOWER_STATUS_8,
212 	LOWER_STATUS_9,
213 	LOWER_STATUS_10,
214 	LOWER_STATUS_11,
215 	LOWER_STATUS_12,
216 	LOWER_STATUS_13,
217 	LOWER_STATUS_14,
218 	LOWER_STATUS_15,
219 	LOW_INT_STATUS_0,	/* LOWER interrupt status */
220 	LOW_INT_STATUS_1,
221 	LOW_INT_STATUS_2,
222 	LOW_INT_STATUS_3,
223 	LOW_INT_STATUS_4,
224 	LOW_INT_STATUS_5,
225 	LOW_INT_STATUS_6,
226 	LOW_INT_STATUS_7,
227 	LOW_INT_STATUS_8,
228 	LOW_INT_STATUS_9,
229 	LOW_INT_STATUS_10,
230 	LOW_INT_STATUS_11,
231 	LOW_INT_STATUS_12,
232 	LOW_INT_STATUS_13,
233 	LOW_INT_STATUS_14,
234 	LOW_INT_STATUS_15,
235 	LOW_INT_CLEAR_0,	/* LOWER interrupt clear */
236 	LOW_INT_CLEAR_1,
237 	LOW_INT_CLEAR_2,
238 	LOW_INT_CLEAR_3,
239 	LOW_INT_CLEAR_4,
240 	LOW_INT_CLEAR_5,
241 	LOW_INT_CLEAR_6,
242 	LOW_INT_CLEAR_7,
243 	LOW_INT_CLEAR_8,
244 	LOW_INT_CLEAR_9,
245 	LOW_INT_CLEAR_10,
246 	LOW_INT_CLEAR_11,
247 	LOW_INT_CLEAR_12,
248 	LOW_INT_CLEAR_13,
249 	LOW_INT_CLEAR_14,
250 	LOW_INT_CLEAR_15,
251 	LOW_INT_MASK_0,	/* LOWER interrupt mask */
252 	LOW_INT_MASK_1,
253 	LOW_INT_MASK_2,
254 	LOW_INT_MASK_3,
255 	LOW_INT_MASK_4,
256 	LOW_INT_MASK_5,
257 	LOW_INT_MASK_6,
258 	LOW_INT_MASK_7,
259 	LOW_INT_MASK_8,
260 	LOW_INT_MASK_9,
261 	LOW_INT_MASK_10,
262 	LOW_INT_MASK_11,
263 	LOW_INT_MASK_12,
264 	LOW_INT_MASK_13,
265 	LOW_INT_MASK_14,
266 	LOW_INT_MASK_15,
267 	LOW_THRESH_0,		/* LOWER threshold values */
268 	LOW_THRESH_1,
269 	LOW_THRESH_2,
270 	LOW_THRESH_3,
271 	LOW_THRESH_4,
272 	LOW_THRESH_5,
273 	LOW_THRESH_6,
274 	LOW_THRESH_7,
275 	LOW_THRESH_8,
276 	LOW_THRESH_9,
277 	LOW_THRESH_10,
278 	LOW_THRESH_11,
279 	LOW_THRESH_12,
280 	LOW_THRESH_13,
281 	LOW_THRESH_14,
282 	LOW_THRESH_15,
283 	UPPER_STATUS_0,	/* UPPER threshold violated */
284 	UPPER_STATUS_1,
285 	UPPER_STATUS_2,
286 	UPPER_STATUS_3,
287 	UPPER_STATUS_4,
288 	UPPER_STATUS_5,
289 	UPPER_STATUS_6,
290 	UPPER_STATUS_7,
291 	UPPER_STATUS_8,
292 	UPPER_STATUS_9,
293 	UPPER_STATUS_10,
294 	UPPER_STATUS_11,
295 	UPPER_STATUS_12,
296 	UPPER_STATUS_13,
297 	UPPER_STATUS_14,
298 	UPPER_STATUS_15,
299 	UP_INT_STATUS_0,	/* UPPER interrupt status */
300 	UP_INT_STATUS_1,
301 	UP_INT_STATUS_2,
302 	UP_INT_STATUS_3,
303 	UP_INT_STATUS_4,
304 	UP_INT_STATUS_5,
305 	UP_INT_STATUS_6,
306 	UP_INT_STATUS_7,
307 	UP_INT_STATUS_8,
308 	UP_INT_STATUS_9,
309 	UP_INT_STATUS_10,
310 	UP_INT_STATUS_11,
311 	UP_INT_STATUS_12,
312 	UP_INT_STATUS_13,
313 	UP_INT_STATUS_14,
314 	UP_INT_STATUS_15,
315 	UP_INT_CLEAR_0,	/* UPPER interrupt clear */
316 	UP_INT_CLEAR_1,
317 	UP_INT_CLEAR_2,
318 	UP_INT_CLEAR_3,
319 	UP_INT_CLEAR_4,
320 	UP_INT_CLEAR_5,
321 	UP_INT_CLEAR_6,
322 	UP_INT_CLEAR_7,
323 	UP_INT_CLEAR_8,
324 	UP_INT_CLEAR_9,
325 	UP_INT_CLEAR_10,
326 	UP_INT_CLEAR_11,
327 	UP_INT_CLEAR_12,
328 	UP_INT_CLEAR_13,
329 	UP_INT_CLEAR_14,
330 	UP_INT_CLEAR_15,
331 	UP_INT_MASK_0,		/* UPPER interrupt mask */
332 	UP_INT_MASK_1,
333 	UP_INT_MASK_2,
334 	UP_INT_MASK_3,
335 	UP_INT_MASK_4,
336 	UP_INT_MASK_5,
337 	UP_INT_MASK_6,
338 	UP_INT_MASK_7,
339 	UP_INT_MASK_8,
340 	UP_INT_MASK_9,
341 	UP_INT_MASK_10,
342 	UP_INT_MASK_11,
343 	UP_INT_MASK_12,
344 	UP_INT_MASK_13,
345 	UP_INT_MASK_14,
346 	UP_INT_MASK_15,
347 	UP_THRESH_0,		/* UPPER threshold values */
348 	UP_THRESH_1,
349 	UP_THRESH_2,
350 	UP_THRESH_3,
351 	UP_THRESH_4,
352 	UP_THRESH_5,
353 	UP_THRESH_6,
354 	UP_THRESH_7,
355 	UP_THRESH_8,
356 	UP_THRESH_9,
357 	UP_THRESH_10,
358 	UP_THRESH_11,
359 	UP_THRESH_12,
360 	UP_THRESH_13,
361 	UP_THRESH_14,
362 	UP_THRESH_15,
363 	CRITICAL_STATUS_0,	/* CRITICAL threshold violated */
364 	CRITICAL_STATUS_1,
365 	CRITICAL_STATUS_2,
366 	CRITICAL_STATUS_3,
367 	CRITICAL_STATUS_4,
368 	CRITICAL_STATUS_5,
369 	CRITICAL_STATUS_6,
370 	CRITICAL_STATUS_7,
371 	CRITICAL_STATUS_8,
372 	CRITICAL_STATUS_9,
373 	CRITICAL_STATUS_10,
374 	CRITICAL_STATUS_11,
375 	CRITICAL_STATUS_12,
376 	CRITICAL_STATUS_13,
377 	CRITICAL_STATUS_14,
378 	CRITICAL_STATUS_15,
379 	CRIT_INT_STATUS_0,	/* CRITICAL interrupt status */
380 	CRIT_INT_STATUS_1,
381 	CRIT_INT_STATUS_2,
382 	CRIT_INT_STATUS_3,
383 	CRIT_INT_STATUS_4,
384 	CRIT_INT_STATUS_5,
385 	CRIT_INT_STATUS_6,
386 	CRIT_INT_STATUS_7,
387 	CRIT_INT_STATUS_8,
388 	CRIT_INT_STATUS_9,
389 	CRIT_INT_STATUS_10,
390 	CRIT_INT_STATUS_11,
391 	CRIT_INT_STATUS_12,
392 	CRIT_INT_STATUS_13,
393 	CRIT_INT_STATUS_14,
394 	CRIT_INT_STATUS_15,
395 	CRIT_INT_CLEAR_0,	/* CRITICAL interrupt clear */
396 	CRIT_INT_CLEAR_1,
397 	CRIT_INT_CLEAR_2,
398 	CRIT_INT_CLEAR_3,
399 	CRIT_INT_CLEAR_4,
400 	CRIT_INT_CLEAR_5,
401 	CRIT_INT_CLEAR_6,
402 	CRIT_INT_CLEAR_7,
403 	CRIT_INT_CLEAR_8,
404 	CRIT_INT_CLEAR_9,
405 	CRIT_INT_CLEAR_10,
406 	CRIT_INT_CLEAR_11,
407 	CRIT_INT_CLEAR_12,
408 	CRIT_INT_CLEAR_13,
409 	CRIT_INT_CLEAR_14,
410 	CRIT_INT_CLEAR_15,
411 	CRIT_INT_MASK_0,	/* CRITICAL interrupt mask */
412 	CRIT_INT_MASK_1,
413 	CRIT_INT_MASK_2,
414 	CRIT_INT_MASK_3,
415 	CRIT_INT_MASK_4,
416 	CRIT_INT_MASK_5,
417 	CRIT_INT_MASK_6,
418 	CRIT_INT_MASK_7,
419 	CRIT_INT_MASK_8,
420 	CRIT_INT_MASK_9,
421 	CRIT_INT_MASK_10,
422 	CRIT_INT_MASK_11,
423 	CRIT_INT_MASK_12,
424 	CRIT_INT_MASK_13,
425 	CRIT_INT_MASK_14,
426 	CRIT_INT_MASK_15,
427 	CRIT_THRESH_0,		/* CRITICAL threshold values */
428 	CRIT_THRESH_1,
429 	CRIT_THRESH_2,
430 	CRIT_THRESH_3,
431 	CRIT_THRESH_4,
432 	CRIT_THRESH_5,
433 	CRIT_THRESH_6,
434 	CRIT_THRESH_7,
435 	CRIT_THRESH_8,
436 	CRIT_THRESH_9,
437 	CRIT_THRESH_10,
438 	CRIT_THRESH_11,
439 	CRIT_THRESH_12,
440 	CRIT_THRESH_13,
441 	CRIT_THRESH_14,
442 	CRIT_THRESH_15,
443 
444 	/* WATCHDOG */
445 	WDOG_BARK_STATUS,
446 	WDOG_BARK_CLEAR,
447 	WDOG_BARK_MASK,
448 	WDOG_BARK_COUNT,
449 
450 	/* CYCLE COMPLETION MONITOR */
451 	CC_MON_STATUS,
452 	CC_MON_CLEAR,
453 	CC_MON_MASK,
454 
455 	MIN_STATUS_0,		/* MIN threshold violated */
456 	MIN_STATUS_1,
457 	MIN_STATUS_2,
458 	MIN_STATUS_3,
459 	MIN_STATUS_4,
460 	MIN_STATUS_5,
461 	MIN_STATUS_6,
462 	MIN_STATUS_7,
463 	MIN_STATUS_8,
464 	MIN_STATUS_9,
465 	MIN_STATUS_10,
466 	MIN_STATUS_11,
467 	MIN_STATUS_12,
468 	MIN_STATUS_13,
469 	MIN_STATUS_14,
470 	MIN_STATUS_15,
471 	MAX_STATUS_0,		/* MAX threshold violated */
472 	MAX_STATUS_1,
473 	MAX_STATUS_2,
474 	MAX_STATUS_3,
475 	MAX_STATUS_4,
476 	MAX_STATUS_5,
477 	MAX_STATUS_6,
478 	MAX_STATUS_7,
479 	MAX_STATUS_8,
480 	MAX_STATUS_9,
481 	MAX_STATUS_10,
482 	MAX_STATUS_11,
483 	MAX_STATUS_12,
484 	MAX_STATUS_13,
485 	MAX_STATUS_14,
486 	MAX_STATUS_15,
487 
488 	/* Keep last */
489 	MAX_REGFIELDS
490 };
491 
492 /**
493  * struct tsens_features - Features supported by the IP
494  * @ver_major: Major number of IP version
495  * @crit_int: does the IP support critical interrupts?
496  * @adc:      do the sensors only output adc code (instead of temperature)?
497  * @srot_split: does the IP neatly splits the register space into SROT and TM,
498  *              with SROT only being available to secure boot firmware?
499  * @has_watchdog: does this IP support watchdog functionality?
500  * @max_sensors: maximum sensors supported by this version of the IP
501  */
502 struct tsens_features {
503 	unsigned int ver_major;
504 	unsigned int crit_int:1;
505 	unsigned int adc:1;
506 	unsigned int srot_split:1;
507 	unsigned int has_watchdog:1;
508 	unsigned int max_sensors;
509 };
510 
511 /**
512  * struct tsens_plat_data - tsens compile-time platform data
513  * @num_sensors: Number of sensors supported by platform
514  * @ops: operations the tsens instance supports
515  * @hw_ids: Subset of sensors ids supported by platform, if not the first n
516  * @feat: features of the IP
517  * @fields: bitfield locations
518  */
519 struct tsens_plat_data {
520 	const u32		num_sensors;
521 	const struct tsens_ops	*ops;
522 	unsigned int		*hw_ids;
523 	struct tsens_features	*feat;
524 	const struct reg_field		*fields;
525 };
526 
527 /**
528  * struct tsens_context - Registers to be saved/restored across a context loss
529  * @threshold: Threshold register value
530  * @control: Control register value
531  */
532 struct tsens_context {
533 	int	threshold;
534 	int	control;
535 };
536 
537 /**
538  * struct tsens_priv - private data for each instance of the tsens IP
539  * @dev: pointer to struct device
540  * @num_sensors: number of sensors enabled on this device
541  * @tm_map: pointer to TM register address space
542  * @srot_map: pointer to SROT register address space
543  * @tm_offset: deal with old device trees that don't address TM and SROT
544  *             address space separately
545  * @ul_lock: lock while processing upper/lower threshold interrupts
546  * @crit_lock: lock while processing critical threshold interrupts
547  * @rf: array of regmap_fields used to store value of the field
548  * @ctx: registers to be saved and restored during suspend/resume
549  * @feat: features of the IP
550  * @fields: bitfield locations
551  * @ops: pointer to list of callbacks supported by this device
552  * @debug_root: pointer to debugfs dentry for all tsens
553  * @debug: pointer to debugfs dentry for tsens controller
554  * @sensor: list of sensors attached to this device
555  */
556 struct tsens_priv {
557 	struct device			*dev;
558 	u32				num_sensors;
559 	struct regmap			*tm_map;
560 	struct regmap			*srot_map;
561 	u32				tm_offset;
562 
563 	/* lock for upper/lower threshold interrupts */
564 	spinlock_t			ul_lock;
565 
566 	struct regmap_field		*rf[MAX_REGFIELDS];
567 	struct tsens_context		ctx;
568 	struct tsens_features		*feat;
569 	const struct reg_field		*fields;
570 	const struct tsens_ops		*ops;
571 
572 	struct dentry			*debug_root;
573 	struct dentry			*debug;
574 
575 	struct tsens_sensor		sensor[];
576 };
577 
578 char *qfprom_read(struct device *dev, const char *cname);
579 void compute_intercept_slope(struct tsens_priv *priv, u32 *pt1, u32 *pt2, u32 mode);
580 int init_common(struct tsens_priv *priv);
581 int get_temp_tsens_valid(const struct tsens_sensor *s, int *temp);
582 int get_temp_common(const struct tsens_sensor *s, int *temp);
583 int tsens_enable_irq(struct tsens_priv *priv);
584 void tsens_disable_irq(struct tsens_priv *priv);
585 int tsens_set_trips(void *_sensor, int low, int high);
586 irqreturn_t tsens_irq_thread(int irq, void *data);
587 irqreturn_t tsens_critical_irq_thread(int irq, void *data);
588 
589 /* TSENS target */
590 extern struct tsens_plat_data data_8960;
591 
592 /* TSENS v0.1 targets */
593 extern struct tsens_plat_data data_8916, data_8974;
594 
595 /* TSENS v1 targets */
596 extern struct tsens_plat_data data_tsens_v1, data_8976;
597 
598 /* TSENS v2 targets */
599 extern struct tsens_plat_data data_8996, data_tsens_v2;
600 
601 #endif /* __QCOM_TSENS_H__ */
602