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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 NO_PT_CALIB 0x0
10#define ONE_PT_CALIB 0x1
11#define ONE_PT_CALIB2 0x2
12#define TWO_PT_CALIB 0x3
13#define ONE_PT_CALIB2_NO_OFFSET 0x6
14#define TWO_PT_CALIB_NO_OFFSET 0x7
15#define CAL_DEGC_PT1 30
16#define CAL_DEGC_PT2 120
17#define SLOPE_FACTOR 1000
18#define SLOPE_DEFAULT 3200
19#define TIMEOUT_US 100
20#define THRESHOLD_MAX_ADC_CODE 0x3ff
21#define THRESHOLD_MIN_ADC_CODE 0x0
22
23#define MAX_SENSORS 16
24
25#include <linux/interrupt.h>
26#include <linux/thermal.h>
27#include <linux/regmap.h>
28#include <linux/slab.h>
29
30struct tsens_priv;
31
32/* IP version numbers in ascending order */
33enum tsens_ver {
34 VER_0 = 0,
35 VER_0_1,
36 VER_1_X,
37 VER_2_X,
38};
39
40enum tsens_irq_type {
41 LOWER,
42 UPPER,
43 CRITICAL,
44};
45
46/**
47 * struct tsens_sensor - data for each sensor connected to the tsens device
48 * @priv: tsens device instance that this sensor is connected to
49 * @tzd: pointer to the thermal zone that this sensor is in
50 * @offset: offset of temperature adjustment curve
51 * @hw_id: HW ID can be used in case of platform-specific IDs
52 * @slope: slope of temperature adjustment curve
53 * @status: 8960-specific variable to track 8960 and 8660 status register offset
54 */
55struct tsens_sensor {
56 struct tsens_priv *priv;
57 struct thermal_zone_device *tzd;
58 int offset;
59 unsigned int hw_id;
60 int slope;
61 u32 status;
62 int p1_calib_offset;
63 int p2_calib_offset;
64};
65
66/**
67 * struct tsens_ops - operations as supported by the tsens device
68 * @init: Function to initialize the tsens device
69 * @calibrate: Function to calibrate the tsens device
70 * @get_temp: Function which returns the temp in millidegC
71 * @enable: Function to enable (clocks/power) tsens device
72 * @disable: Function to disable the tsens device
73 * @suspend: Function to suspend the tsens device
74 * @resume: Function to resume the tsens device
75 */
76struct tsens_ops {
77 /* mandatory callbacks */
78 int (*init)(struct tsens_priv *priv);
79 int (*calibrate)(struct tsens_priv *priv);
80 int (*get_temp)(const struct tsens_sensor *s, int *temp);
81 /* optional callbacks */
82 int (*enable)(struct tsens_priv *priv, int i);
83 void (*disable)(struct tsens_priv *priv);
84 int (*suspend)(struct tsens_priv *priv);
85 int (*resume)(struct tsens_priv *priv);
86};
87
88#define REG_FIELD_FOR_EACH_SENSOR11(_name, _offset, _startbit, _stopbit) \
89 [_name##_##0] = REG_FIELD(_offset, _startbit, _stopbit), \
90 [_name##_##1] = REG_FIELD(_offset + 4, _startbit, _stopbit), \
91 [_name##_##2] = REG_FIELD(_offset + 8, _startbit, _stopbit), \
92 [_name##_##3] = REG_FIELD(_offset + 12, _startbit, _stopbit), \
93 [_name##_##4] = REG_FIELD(_offset + 16, _startbit, _stopbit), \
94 [_name##_##5] = REG_FIELD(_offset + 20, _startbit, _stopbit), \
95 [_name##_##6] = REG_FIELD(_offset + 24, _startbit, _stopbit), \
96 [_name##_##7] = REG_FIELD(_offset + 28, _startbit, _stopbit), \
97 [_name##_##8] = REG_FIELD(_offset + 32, _startbit, _stopbit), \
98 [_name##_##9] = REG_FIELD(_offset + 36, _startbit, _stopbit), \
99 [_name##_##10] = REG_FIELD(_offset + 40, _startbit, _stopbit)
100
101#define REG_FIELD_FOR_EACH_SENSOR16(_name, _offset, _startbit, _stopbit) \
102 [_name##_##0] = REG_FIELD(_offset, _startbit, _stopbit), \
103 [_name##_##1] = REG_FIELD(_offset + 4, _startbit, _stopbit), \
104 [_name##_##2] = REG_FIELD(_offset + 8, _startbit, _stopbit), \
105 [_name##_##3] = REG_FIELD(_offset + 12, _startbit, _stopbit), \
106 [_name##_##4] = REG_FIELD(_offset + 16, _startbit, _stopbit), \
107 [_name##_##5] = REG_FIELD(_offset + 20, _startbit, _stopbit), \
108 [_name##_##6] = REG_FIELD(_offset + 24, _startbit, _stopbit), \
109 [_name##_##7] = REG_FIELD(_offset + 28, _startbit, _stopbit), \
110 [_name##_##8] = REG_FIELD(_offset + 32, _startbit, _stopbit), \
111 [_name##_##9] = REG_FIELD(_offset + 36, _startbit, _stopbit), \
112 [_name##_##10] = REG_FIELD(_offset + 40, _startbit, _stopbit), \
113 [_name##_##11] = REG_FIELD(_offset + 44, _startbit, _stopbit), \
114 [_name##_##12] = REG_FIELD(_offset + 48, _startbit, _stopbit), \
115 [_name##_##13] = REG_FIELD(_offset + 52, _startbit, _stopbit), \
116 [_name##_##14] = REG_FIELD(_offset + 56, _startbit, _stopbit), \
117 [_name##_##15] = REG_FIELD(_offset + 60, _startbit, _stopbit)
118
119#define REG_FIELD_SPLIT_BITS_0_15(_name, _offset) \
120 [_name##_##0] = REG_FIELD(_offset, 0, 0), \
121 [_name##_##1] = REG_FIELD(_offset, 1, 1), \
122 [_name##_##2] = REG_FIELD(_offset, 2, 2), \
123 [_name##_##3] = REG_FIELD(_offset, 3, 3), \
124 [_name##_##4] = REG_FIELD(_offset, 4, 4), \
125 [_name##_##5] = REG_FIELD(_offset, 5, 5), \
126 [_name##_##6] = REG_FIELD(_offset, 6, 6), \
127 [_name##_##7] = REG_FIELD(_offset, 7, 7), \
128 [_name##_##8] = REG_FIELD(_offset, 8, 8), \
129 [_name##_##9] = REG_FIELD(_offset, 9, 9), \
130 [_name##_##10] = REG_FIELD(_offset, 10, 10), \
131 [_name##_##11] = REG_FIELD(_offset, 11, 11), \
132 [_name##_##12] = REG_FIELD(_offset, 12, 12), \
133 [_name##_##13] = REG_FIELD(_offset, 13, 13), \
134 [_name##_##14] = REG_FIELD(_offset, 14, 14), \
135 [_name##_##15] = REG_FIELD(_offset, 15, 15)
136
137#define REG_FIELD_SPLIT_BITS_16_31(_name, _offset) \
138 [_name##_##0] = REG_FIELD(_offset, 16, 16), \
139 [_name##_##1] = REG_FIELD(_offset, 17, 17), \
140 [_name##_##2] = REG_FIELD(_offset, 18, 18), \
141 [_name##_##3] = REG_FIELD(_offset, 19, 19), \
142 [_name##_##4] = REG_FIELD(_offset, 20, 20), \
143 [_name##_##5] = REG_FIELD(_offset, 21, 21), \
144 [_name##_##6] = REG_FIELD(_offset, 22, 22), \
145 [_name##_##7] = REG_FIELD(_offset, 23, 23), \
146 [_name##_##8] = REG_FIELD(_offset, 24, 24), \
147 [_name##_##9] = REG_FIELD(_offset, 25, 25), \
148 [_name##_##10] = REG_FIELD(_offset, 26, 26), \
149 [_name##_##11] = REG_FIELD(_offset, 27, 27), \
150 [_name##_##12] = REG_FIELD(_offset, 28, 28), \
151 [_name##_##13] = REG_FIELD(_offset, 29, 29), \
152 [_name##_##14] = REG_FIELD(_offset, 30, 30), \
153 [_name##_##15] = REG_FIELD(_offset, 31, 31)
154
155/*
156 * reg_field IDs to use as an index into an array
157 * If you change the order of the entries, check the devm_regmap_field_alloc()
158 * calls in init_common()
159 */
160enum regfield_ids {
161 /* ----- SROT ------ */
162 /* HW_VER */
163 VER_MAJOR,
164 VER_MINOR,
165 VER_STEP,
166 /* CTRL_OFFSET */
167 TSENS_EN,
168 TSENS_SW_RST,
169 SENSOR_EN,
170 CODE_OR_TEMP,
171
172 /* ----- TM ------ */
173 /* TRDY */
174 TRDY,
175 /* INTERRUPT ENABLE */
176 INT_EN, /* v2+ has separate enables for crit, upper and lower irq */
177 /* STATUS */
178 LAST_TEMP_0, /* Last temperature reading */
179 LAST_TEMP_1,
180 LAST_TEMP_2,
181 LAST_TEMP_3,
182 LAST_TEMP_4,
183 LAST_TEMP_5,
184 LAST_TEMP_6,
185 LAST_TEMP_7,
186 LAST_TEMP_8,
187 LAST_TEMP_9,
188 LAST_TEMP_10,
189 LAST_TEMP_11,
190 LAST_TEMP_12,
191 LAST_TEMP_13,
192 LAST_TEMP_14,
193 LAST_TEMP_15,
194 VALID_0, /* VALID reading or not */
195 VALID_1,
196 VALID_2,
197 VALID_3,
198 VALID_4,
199 VALID_5,
200 VALID_6,
201 VALID_7,
202 VALID_8,
203 VALID_9,
204 VALID_10,
205 VALID_11,
206 VALID_12,
207 VALID_13,
208 VALID_14,
209 VALID_15,
210 LOWER_STATUS_0, /* LOWER threshold violated */
211 LOWER_STATUS_1,
212 LOWER_STATUS_2,
213 LOWER_STATUS_3,
214 LOWER_STATUS_4,
215 LOWER_STATUS_5,
216 LOWER_STATUS_6,
217 LOWER_STATUS_7,
218 LOWER_STATUS_8,
219 LOWER_STATUS_9,
220 LOWER_STATUS_10,
221 LOWER_STATUS_11,
222 LOWER_STATUS_12,
223 LOWER_STATUS_13,
224 LOWER_STATUS_14,
225 LOWER_STATUS_15,
226 LOW_INT_STATUS_0, /* LOWER interrupt status */
227 LOW_INT_STATUS_1,
228 LOW_INT_STATUS_2,
229 LOW_INT_STATUS_3,
230 LOW_INT_STATUS_4,
231 LOW_INT_STATUS_5,
232 LOW_INT_STATUS_6,
233 LOW_INT_STATUS_7,
234 LOW_INT_STATUS_8,
235 LOW_INT_STATUS_9,
236 LOW_INT_STATUS_10,
237 LOW_INT_STATUS_11,
238 LOW_INT_STATUS_12,
239 LOW_INT_STATUS_13,
240 LOW_INT_STATUS_14,
241 LOW_INT_STATUS_15,
242 LOW_INT_CLEAR_0, /* LOWER interrupt clear */
243 LOW_INT_CLEAR_1,
244 LOW_INT_CLEAR_2,
245 LOW_INT_CLEAR_3,
246 LOW_INT_CLEAR_4,
247 LOW_INT_CLEAR_5,
248 LOW_INT_CLEAR_6,
249 LOW_INT_CLEAR_7,
250 LOW_INT_CLEAR_8,
251 LOW_INT_CLEAR_9,
252 LOW_INT_CLEAR_10,
253 LOW_INT_CLEAR_11,
254 LOW_INT_CLEAR_12,
255 LOW_INT_CLEAR_13,
256 LOW_INT_CLEAR_14,
257 LOW_INT_CLEAR_15,
258 LOW_INT_MASK_0, /* LOWER interrupt mask */
259 LOW_INT_MASK_1,
260 LOW_INT_MASK_2,
261 LOW_INT_MASK_3,
262 LOW_INT_MASK_4,
263 LOW_INT_MASK_5,
264 LOW_INT_MASK_6,
265 LOW_INT_MASK_7,
266 LOW_INT_MASK_8,
267 LOW_INT_MASK_9,
268 LOW_INT_MASK_10,
269 LOW_INT_MASK_11,
270 LOW_INT_MASK_12,
271 LOW_INT_MASK_13,
272 LOW_INT_MASK_14,
273 LOW_INT_MASK_15,
274 LOW_THRESH_0, /* LOWER threshold values */
275 LOW_THRESH_1,
276 LOW_THRESH_2,
277 LOW_THRESH_3,
278 LOW_THRESH_4,
279 LOW_THRESH_5,
280 LOW_THRESH_6,
281 LOW_THRESH_7,
282 LOW_THRESH_8,
283 LOW_THRESH_9,
284 LOW_THRESH_10,
285 LOW_THRESH_11,
286 LOW_THRESH_12,
287 LOW_THRESH_13,
288 LOW_THRESH_14,
289 LOW_THRESH_15,
290 UPPER_STATUS_0, /* UPPER threshold violated */
291 UPPER_STATUS_1,
292 UPPER_STATUS_2,
293 UPPER_STATUS_3,
294 UPPER_STATUS_4,
295 UPPER_STATUS_5,
296 UPPER_STATUS_6,
297 UPPER_STATUS_7,
298 UPPER_STATUS_8,
299 UPPER_STATUS_9,
300 UPPER_STATUS_10,
301 UPPER_STATUS_11,
302 UPPER_STATUS_12,
303 UPPER_STATUS_13,
304 UPPER_STATUS_14,
305 UPPER_STATUS_15,
306 UP_INT_STATUS_0, /* UPPER interrupt status */
307 UP_INT_STATUS_1,
308 UP_INT_STATUS_2,
309 UP_INT_STATUS_3,
310 UP_INT_STATUS_4,
311 UP_INT_STATUS_5,
312 UP_INT_STATUS_6,
313 UP_INT_STATUS_7,
314 UP_INT_STATUS_8,
315 UP_INT_STATUS_9,
316 UP_INT_STATUS_10,
317 UP_INT_STATUS_11,
318 UP_INT_STATUS_12,
319 UP_INT_STATUS_13,
320 UP_INT_STATUS_14,
321 UP_INT_STATUS_15,
322 UP_INT_CLEAR_0, /* UPPER interrupt clear */
323 UP_INT_CLEAR_1,
324 UP_INT_CLEAR_2,
325 UP_INT_CLEAR_3,
326 UP_INT_CLEAR_4,
327 UP_INT_CLEAR_5,
328 UP_INT_CLEAR_6,
329 UP_INT_CLEAR_7,
330 UP_INT_CLEAR_8,
331 UP_INT_CLEAR_9,
332 UP_INT_CLEAR_10,
333 UP_INT_CLEAR_11,
334 UP_INT_CLEAR_12,
335 UP_INT_CLEAR_13,
336 UP_INT_CLEAR_14,
337 UP_INT_CLEAR_15,
338 UP_INT_MASK_0, /* UPPER interrupt mask */
339 UP_INT_MASK_1,
340 UP_INT_MASK_2,
341 UP_INT_MASK_3,
342 UP_INT_MASK_4,
343 UP_INT_MASK_5,
344 UP_INT_MASK_6,
345 UP_INT_MASK_7,
346 UP_INT_MASK_8,
347 UP_INT_MASK_9,
348 UP_INT_MASK_10,
349 UP_INT_MASK_11,
350 UP_INT_MASK_12,
351 UP_INT_MASK_13,
352 UP_INT_MASK_14,
353 UP_INT_MASK_15,
354 UP_THRESH_0, /* UPPER threshold values */
355 UP_THRESH_1,
356 UP_THRESH_2,
357 UP_THRESH_3,
358 UP_THRESH_4,
359 UP_THRESH_5,
360 UP_THRESH_6,
361 UP_THRESH_7,
362 UP_THRESH_8,
363 UP_THRESH_9,
364 UP_THRESH_10,
365 UP_THRESH_11,
366 UP_THRESH_12,
367 UP_THRESH_13,
368 UP_THRESH_14,
369 UP_THRESH_15,
370 CRITICAL_STATUS_0, /* CRITICAL threshold violated */
371 CRITICAL_STATUS_1,
372 CRITICAL_STATUS_2,
373 CRITICAL_STATUS_3,
374 CRITICAL_STATUS_4,
375 CRITICAL_STATUS_5,
376 CRITICAL_STATUS_6,
377 CRITICAL_STATUS_7,
378 CRITICAL_STATUS_8,
379 CRITICAL_STATUS_9,
380 CRITICAL_STATUS_10,
381 CRITICAL_STATUS_11,
382 CRITICAL_STATUS_12,
383 CRITICAL_STATUS_13,
384 CRITICAL_STATUS_14,
385 CRITICAL_STATUS_15,
386 CRIT_INT_STATUS_0, /* CRITICAL interrupt status */
387 CRIT_INT_STATUS_1,
388 CRIT_INT_STATUS_2,
389 CRIT_INT_STATUS_3,
390 CRIT_INT_STATUS_4,
391 CRIT_INT_STATUS_5,
392 CRIT_INT_STATUS_6,
393 CRIT_INT_STATUS_7,
394 CRIT_INT_STATUS_8,
395 CRIT_INT_STATUS_9,
396 CRIT_INT_STATUS_10,
397 CRIT_INT_STATUS_11,
398 CRIT_INT_STATUS_12,
399 CRIT_INT_STATUS_13,
400 CRIT_INT_STATUS_14,
401 CRIT_INT_STATUS_15,
402 CRIT_INT_CLEAR_0, /* CRITICAL interrupt clear */
403 CRIT_INT_CLEAR_1,
404 CRIT_INT_CLEAR_2,
405 CRIT_INT_CLEAR_3,
406 CRIT_INT_CLEAR_4,
407 CRIT_INT_CLEAR_5,
408 CRIT_INT_CLEAR_6,
409 CRIT_INT_CLEAR_7,
410 CRIT_INT_CLEAR_8,
411 CRIT_INT_CLEAR_9,
412 CRIT_INT_CLEAR_10,
413 CRIT_INT_CLEAR_11,
414 CRIT_INT_CLEAR_12,
415 CRIT_INT_CLEAR_13,
416 CRIT_INT_CLEAR_14,
417 CRIT_INT_CLEAR_15,
418 CRIT_INT_MASK_0, /* CRITICAL interrupt mask */
419 CRIT_INT_MASK_1,
420 CRIT_INT_MASK_2,
421 CRIT_INT_MASK_3,
422 CRIT_INT_MASK_4,
423 CRIT_INT_MASK_5,
424 CRIT_INT_MASK_6,
425 CRIT_INT_MASK_7,
426 CRIT_INT_MASK_8,
427 CRIT_INT_MASK_9,
428 CRIT_INT_MASK_10,
429 CRIT_INT_MASK_11,
430 CRIT_INT_MASK_12,
431 CRIT_INT_MASK_13,
432 CRIT_INT_MASK_14,
433 CRIT_INT_MASK_15,
434 CRIT_THRESH_0, /* CRITICAL threshold values */
435 CRIT_THRESH_1,
436 CRIT_THRESH_2,
437 CRIT_THRESH_3,
438 CRIT_THRESH_4,
439 CRIT_THRESH_5,
440 CRIT_THRESH_6,
441 CRIT_THRESH_7,
442 CRIT_THRESH_8,
443 CRIT_THRESH_9,
444 CRIT_THRESH_10,
445 CRIT_THRESH_11,
446 CRIT_THRESH_12,
447 CRIT_THRESH_13,
448 CRIT_THRESH_14,
449 CRIT_THRESH_15,
450
451 /* WATCHDOG */
452 WDOG_BARK_STATUS,
453 WDOG_BARK_CLEAR,
454 WDOG_BARK_MASK,
455 WDOG_BARK_COUNT,
456
457 /* CYCLE COMPLETION MONITOR */
458 CC_MON_STATUS,
459 CC_MON_CLEAR,
460 CC_MON_MASK,
461
462 MIN_STATUS_0, /* MIN threshold violated */
463 MIN_STATUS_1,
464 MIN_STATUS_2,
465 MIN_STATUS_3,
466 MIN_STATUS_4,
467 MIN_STATUS_5,
468 MIN_STATUS_6,
469 MIN_STATUS_7,
470 MIN_STATUS_8,
471 MIN_STATUS_9,
472 MIN_STATUS_10,
473 MIN_STATUS_11,
474 MIN_STATUS_12,
475 MIN_STATUS_13,
476 MIN_STATUS_14,
477 MIN_STATUS_15,
478 MAX_STATUS_0, /* MAX threshold violated */
479 MAX_STATUS_1,
480 MAX_STATUS_2,
481 MAX_STATUS_3,
482 MAX_STATUS_4,
483 MAX_STATUS_5,
484 MAX_STATUS_6,
485 MAX_STATUS_7,
486 MAX_STATUS_8,
487 MAX_STATUS_9,
488 MAX_STATUS_10,
489 MAX_STATUS_11,
490 MAX_STATUS_12,
491 MAX_STATUS_13,
492 MAX_STATUS_14,
493 MAX_STATUS_15,
494
495 /* Keep last */
496 MAX_REGFIELDS
497};
498
499/**
500 * struct tsens_features - Features supported by the IP
501 * @ver_major: Major number of IP version
502 * @crit_int: does the IP support critical interrupts?
503 * @combo_int: does the IP use one IRQ for up, low and critical thresholds?
504 * @adc: do the sensors only output adc code (instead of temperature)?
505 * @srot_split: does the IP neatly splits the register space into SROT and TM,
506 * with SROT only being available to secure boot firmware?
507 * @has_watchdog: does this IP support watchdog functionality?
508 * @max_sensors: maximum sensors supported by this version of the IP
509 * @trip_min_temp: minimum trip temperature supported by this version of the IP
510 * @trip_max_temp: maximum trip temperature supported by this version of the IP
511 */
512struct tsens_features {
513 unsigned int ver_major;
514 unsigned int crit_int:1;
515 unsigned int combo_int:1;
516 unsigned int adc:1;
517 unsigned int srot_split:1;
518 unsigned int has_watchdog:1;
519 unsigned int max_sensors;
520 int trip_min_temp;
521 int trip_max_temp;
522};
523
524/**
525 * struct tsens_plat_data - tsens compile-time platform data
526 * @num_sensors: Number of sensors supported by platform
527 * @ops: operations the tsens instance supports
528 * @hw_ids: Subset of sensors ids supported by platform, if not the first n
529 * @feat: features of the IP
530 * @fields: bitfield locations
531 */
532struct tsens_plat_data {
533 const u32 num_sensors;
534 const struct tsens_ops *ops;
535 unsigned int *hw_ids;
536 struct tsens_features *feat;
537 const struct reg_field *fields;
538};
539
540/**
541 * struct tsens_context - Registers to be saved/restored across a context loss
542 * @threshold: Threshold register value
543 * @control: Control register value
544 */
545struct tsens_context {
546 int threshold;
547 int control;
548};
549
550/**
551 * struct tsens_priv - private data for each instance of the tsens IP
552 * @dev: pointer to struct device
553 * @num_sensors: number of sensors enabled on this device
554 * @tm_map: pointer to TM register address space
555 * @srot_map: pointer to SROT register address space
556 * @tm_offset: deal with old device trees that don't address TM and SROT
557 * address space separately
558 * @ul_lock: lock while processing upper/lower threshold interrupts
559 * @crit_lock: lock while processing critical threshold interrupts
560 * @rf: array of regmap_fields used to store value of the field
561 * @ctx: registers to be saved and restored during suspend/resume
562 * @feat: features of the IP
563 * @fields: bitfield locations
564 * @ops: pointer to list of callbacks supported by this device
565 * @debug_root: pointer to debugfs dentry for all tsens
566 * @debug: pointer to debugfs dentry for tsens controller
567 * @sensor: list of sensors attached to this device
568 */
569struct tsens_priv {
570 struct device *dev;
571 u32 num_sensors;
572 struct regmap *tm_map;
573 struct regmap *srot_map;
574 u32 tm_offset;
575
576 /* lock for upper/lower threshold interrupts */
577 spinlock_t ul_lock;
578
579 struct regmap_field *rf[MAX_REGFIELDS];
580 struct tsens_context ctx;
581 struct tsens_features *feat;
582 const struct reg_field *fields;
583 const struct tsens_ops *ops;
584
585 struct dentry *debug_root;
586 struct dentry *debug;
587
588 struct tsens_sensor sensor[] __counted_by(num_sensors);
589};
590
591/**
592 * struct tsens_single_value - internal representation of a single field inside nvmem calibration data
593 * @idx: index into the u32 data array
594 * @shift: the shift of the first bit in the value
595 * @blob: index of the data blob to use for this cell
596 */
597struct tsens_single_value {
598 u8 idx;
599 u8 shift;
600 u8 blob;
601};
602
603/**
604 * struct tsens_legacy_calibration_format - description of calibration data used when parsing the legacy nvmem blob
605 * @base_len: the length of the base fields inside calibration data
606 * @base_shift: the shift to be applied to base data
607 * @sp_len: the length of the sN_pM fields inside calibration data
608 * @mode: descriptor of the calibration mode field
609 * @invalid: descriptor of the calibration mode invalid field
610 * @base: descriptors of the base0 and base1 fields
611 * @sp: descriptors of the sN_pM fields
612 */
613struct tsens_legacy_calibration_format {
614 unsigned int base_len;
615 unsigned int base_shift;
616 unsigned int sp_len;
617 /* just two bits */
618 struct tsens_single_value mode;
619 /* on all platforms except 8974 invalid is the third bit of what downstream calls 'mode' */
620 struct tsens_single_value invalid;
621 struct tsens_single_value base[2];
622 struct tsens_single_value sp[][2];
623};
624
625char *qfprom_read(struct device *dev, const char *cname);
626int tsens_read_calibration_legacy(struct tsens_priv *priv,
627 const struct tsens_legacy_calibration_format *format,
628 u32 *p1, u32 *p2,
629 u32 *cdata, u32 *csel);
630int tsens_read_calibration(struct tsens_priv *priv, int shift, u32 *p1, u32 *p2, bool backup);
631int tsens_calibrate_nvmem(struct tsens_priv *priv, int shift);
632int tsens_calibrate_common(struct tsens_priv *priv);
633void compute_intercept_slope(struct tsens_priv *priv, u32 *pt1, u32 *pt2, u32 mode);
634int init_common(struct tsens_priv *priv);
635int get_temp_tsens_valid(const struct tsens_sensor *s, int *temp);
636int get_temp_common(const struct tsens_sensor *s, int *temp);
637#ifdef CONFIG_SUSPEND
638int tsens_resume_common(struct tsens_priv *priv);
639#else
640#define tsens_resume_common NULL
641#endif
642
643/* TSENS target */
644extern struct tsens_plat_data data_8960;
645
646/* TSENS v0.1 targets */
647extern struct tsens_plat_data data_8226, data_8909, data_8916, data_8939, data_8974, data_9607;
648
649/* TSENS v1 targets */
650extern struct tsens_plat_data data_tsens_v1, data_8937, data_8976, data_8956;
651
652/* TSENS v2 targets */
653extern struct tsens_plat_data data_8996, data_ipq8074, data_tsens_v2;
654
655#endif /* __QCOM_TSENS_H__ */