summaryrefslogtreecommitdiffstats
path: root/drivers/thermal/rockchip_thermal.c
blob: f36375d5a16c57dae499820522accbe979101db8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
/*
 * Copyright (c) 2014-2016, Fuzhou Rockchip Electronics Co., Ltd
 * Caesar Wang <wxt@rock-chips.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 */

#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
#include <linux/of_irq.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/reset.h>
#include <linux/thermal.h>
#include <linux/mfd/syscon.h>
#include <linux/pinctrl/consumer.h>

/**
 * If the temperature over a period of time High,
 * the resulting TSHUT gave CRU module,let it reset the entire chip,
 * or via GPIO give PMIC.
 */
enum tshut_mode {
	TSHUT_MODE_CRU = 0,
	TSHUT_MODE_GPIO,
};

/**
 * The system Temperature Sensors tshut(tshut) polarity
 * the bit 8 is tshut polarity.
 * 0: low active, 1: high active
 */
enum tshut_polarity {
	TSHUT_LOW_ACTIVE = 0,
	TSHUT_HIGH_ACTIVE,
};

/**
 * The system has two Temperature Sensors.
 * sensor0 is for CPU, and sensor1 is for GPU.
 */
enum sensor_id {
	SENSOR_CPU = 0,
	SENSOR_GPU,
};

/**
 * The conversion table has the adc value and temperature.
 * ADC_DECREMENT: the adc value is of diminishing.(e.g. rk3288_code_table)
 * ADC_INCREMENT: the adc value is incremental.(e.g. rk3368_code_table)
 */
enum adc_sort_mode {
	ADC_DECREMENT = 0,
	ADC_INCREMENT,
};

/**
 * The max sensors is two in rockchip SoCs.
 * Two sensors: CPU and GPU sensor.
 */
#define SOC_MAX_SENSORS	2

/**
 * struct chip_tsadc_table - hold information about chip-specific differences
 * @id: conversion table
 * @length: size of conversion table
 * @data_mask: mask to apply on data inputs
 * @mode: sort mode of this adc variant (incrementing or decrementing)
 */
struct chip_tsadc_table {
	const struct tsadc_table *id;
	unsigned int length;
	u32 data_mask;
	enum adc_sort_mode mode;
};

/**
 * struct rockchip_tsadc_chip - hold the private data of tsadc chip
 * @chn_id[SOC_MAX_SENSORS]: the sensor id of chip correspond to the channel
 * @chn_num: the channel number of tsadc chip
 * @tshut_temp: the hardware-controlled shutdown temperature value
 * @tshut_mode: the hardware-controlled shutdown mode (0:CRU 1:GPIO)
 * @tshut_polarity: the hardware-controlled active polarity (0:LOW 1:HIGH)
 * @initialize: SoC special initialize tsadc controller method
 * @irq_ack: clear the interrupt
 * @get_temp: get the temperature
 * @set_alarm_temp: set the high temperature interrupt
 * @set_tshut_temp: set the hardware-controlled shutdown temperature
 * @set_tshut_mode: set the hardware-controlled shutdown mode
 * @table: the chip-specific conversion table
 */
struct rockchip_tsadc_chip {
	/* The sensor id of chip correspond to the ADC channel */
	int chn_id[SOC_MAX_SENSORS];
	int chn_num;

	/* The hardware-controlled tshut property */
	int tshut_temp;
	enum tshut_mode tshut_mode;
	enum tshut_polarity tshut_polarity;

	/* Chip-wide methods */
	void (*initialize)(struct regmap *grf,
			   void __iomem *reg, enum tshut_polarity p);
	void (*irq_ack)(void __iomem *reg);
	void (*control)(void __iomem *reg, bool on);

	/* Per-sensor methods */
	int (*get_temp)(const struct chip_tsadc_table *table,
			int chn, void __iomem *reg, int *temp);
	int (*set_alarm_temp)(const struct chip_tsadc_table *table,
			      int chn, void __iomem *reg, int temp);
	int (*set_tshut_temp)(const struct chip_tsadc_table *table,
			      int chn, void __iomem *reg, int temp);
	void (*set_tshut_mode)(int chn, void __iomem *reg, enum tshut_mode m);

	/* Per-table methods */
	struct chip_tsadc_table table;
};

/**
 * struct rockchip_thermal_sensor - hold the information of thermal sensor
 * @thermal:  pointer to the platform/configuration data
 * @tzd: pointer to a thermal zone
 * @id: identifier of the thermal sensor
 */
struct rockchip_thermal_sensor {
	struct rockchip_thermal_data *thermal;
	struct thermal_zone_device *tzd;
	int id;
};

/**
 * struct rockchip_thermal_data - hold the private data of thermal driver
 * @chip: pointer to the platform/configuration data
 * @pdev: platform device of thermal
 * @reset: the reset controller of tsadc
 * @sensors[SOC_MAX_SENSORS]: the thermal sensor
 * @clk: the controller clock is divided by the exteral 24MHz
 * @pclk: the advanced peripherals bus clock
 * @grf: the general register file will be used to do static set by software
 * @regs: the base address of tsadc controller
 * @tshut_temp: the hardware-controlled shutdown temperature value
 * @tshut_mode: the hardware-controlled shutdown mode (0:CRU 1:GPIO)
 * @tshut_polarity: the hardware-controlled active polarity (0:LOW 1:HIGH)
 */
struct rockchip_thermal_data {
	const struct rockchip_tsadc_chip *chip;
	struct platform_device *pdev;
	struct reset_control *reset;

	struct rockchip_thermal_sensor sensors[SOC_MAX_SENSORS];

	struct clk *clk;
	struct clk *pclk;

	struct regmap *grf;
	void __iomem *regs;

	int tshut_temp;
	enum tshut_mode tshut_mode;
	enum tshut_polarity tshut_polarity;
};

/**
 * TSADC Sensor Register description:
 *
 * TSADCV2_* are used for RK3288 SoCs, the other chips can reuse it.
 * TSADCV3_* are used for newer SoCs than RK3288. (e.g: RK3228, RK3399)
 *
 */
#define TSADCV2_USER_CON			0x00
#define TSADCV2_AUTO_CON			0x04
#define TSADCV2_INT_EN				0x08
#define TSADCV2_INT_PD				0x0c
#define TSADCV2_DATA(chn)			(0x20 + (chn) * 0x04)
#define TSADCV2_COMP_INT(chn)		        (0x30 + (chn) * 0x04)
#define TSADCV2_COMP_SHUT(chn)		        (0x40 + (chn) * 0x04)
#define TSADCV2_HIGHT_INT_DEBOUNCE		0x60
#define TSADCV2_HIGHT_TSHUT_DEBOUNCE		0x64
#define TSADCV2_AUTO_PERIOD			0x68
#define TSADCV2_AUTO_PERIOD_HT			0x6c

#define TSADCV2_AUTO_EN				BIT(0)
#define TSADCV2_AUTO_SRC_EN(chn)		BIT(4 + (chn))
#define TSADCV2_AUTO_TSHUT_POLARITY_HIGH	BIT(8)

#define TSADCV3_AUTO_Q_SEL_EN			BIT(1)

#define TSADCV2_INT_SRC_EN(chn)			BIT(chn)
#define TSADCV2_SHUT_2GPIO_SRC_EN(chn)		BIT(4 + (chn))
#define TSADCV2_SHUT_2CRU_SRC_EN(chn)		BIT(8 + (chn))

#define TSADCV2_INT_PD_CLEAR_MASK		~BIT(8)
#define TSADCV3_INT_PD_CLEAR_MASK		~BIT(16)

#define TSADCV2_DATA_MASK			0xfff
#define TSADCV3_DATA_MASK			0x3ff

#define TSADCV2_HIGHT_INT_DEBOUNCE_COUNT	4
#define TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT	4
#define TSADCV2_AUTO_PERIOD_TIME		250 /* 250ms */
#define TSADCV2_AUTO_PERIOD_HT_TIME		50  /* 50ms */
#define TSADCV3_AUTO_PERIOD_TIME		1875 /* 2.5ms */
#define TSADCV3_AUTO_PERIOD_HT_TIME		1875 /* 2.5ms */

#define TSADCV2_USER_INTER_PD_SOC		0x340 /* 13 clocks */

#define GRF_SARADC_TESTBIT			0x0e644
#define GRF_TSADC_TESTBIT_L			0x0e648
#define GRF_TSADC_TESTBIT_H			0x0e64c

#define GRF_SARADC_TESTBIT_ON			(0x10001 << 2)
#define GRF_TSADC_TESTBIT_H_ON			(0x10001 << 2)
#define GRF_TSADC_VCM_EN_L			(0x10001 << 7)
#define GRF_TSADC_VCM_EN_H			(0x10001 << 7)

/**
 * struct tsadc_table - code to temperature conversion table
 * @code: the value of adc channel
 * @temp: the temperature
 * Note:
 * code to temperature mapping of the temperature sensor is a piece wise linear
 * curve.Any temperature, code faling between to 2 give temperatures can be
 * linearly interpolated.
 * Code to Temperature mapping should be updated based on manufacturer results.
 */
struct tsadc_table {
	u32 code;
	int temp;
};

static const struct tsadc_table rv1108_table[] = {
	{0, -40000},
	{374, -40000},
	{382, -35000},
	{389, -30000},
	{397, -25000},
	{405, -20000},
	{413, -15000},
	{421, -10000},
	{429, -5000},
	{436, 0},
	{444, 5000},
	{452, 10000},
	{460, 15000},
	{468, 20000},
	{476, 25000},
	{483, 30000},
	{491, 35000},
	{499, 40000},
	{507, 45000},
	{515, 50000},
	{523, 55000},
	{531, 60000},
	{539, 65000},
	{547, 70000},
	{555, 75000},
	{562, 80000},
	{570, 85000},
	{578, 90000},
	{586, 95000},
	{594, 100000},
	{602, 105000},
	{610, 110000},
	{618, 115000},
	{626, 120000},
	{634, 125000},
	{TSADCV2_DATA_MASK, 125000},
};

static const struct tsadc_table rk3228_code_table[] = {
	{0, -40000},
	{588, -40000},
	{593, -35000},
	{598, -30000},
	{603, -25000},
	{608, -20000},
	{613, -15000},
	{618, -10000},
	{623, -5000},
	{629, 0},
	{634, 5000},
	{639, 10000},
	{644, 15000},
	{649, 20000},
	{654, 25000},
	{660, 30000},
	{665, 35000},
	{670, 40000},
	{675, 45000},
	{681, 50000},
	{686, 55000},
	{691, 60000},
	{696, 65000},
	{702, 70000},
	{707, 75000},
	{712, 80000},
	{717, 85000},
	{723, 90000},
	{728, 95000},
	{733, 100000},
	{738, 105000},
	{744, 110000},
	{749, 115000},
	{754, 120000},
	{760, 125000},
	{TSADCV2_DATA_MASK, 125000},
};

static const struct tsadc_table rk3288_code_table[] = {
	{TSADCV2_DATA_MASK, -40000},
	{3800, -40000},
	{3792, -35000},
	{3783, -30000},
	{3774, -25000},
	{3765, -20000},
	{3756, -15000},
	{3747, -10000},
	{3737, -5000},
	{3728, 0},
	{3718, 5000},
	{3708, 10000},
	{3698, 15000},
	{3688, 20000},
	{3678, 25000},
	{3667, 30000},
	{3656, 35000},
	{3645, 40000},
	{3634, 45000},
	{3623, 50000},
	{3611, 55000},
	{3600, 60000},
	{3588, 65000},
	{3575, 70000},
	{3563, 75000},
	{3550, 80000},
	{3537, 85000},
	{3524, 90000},
	{3510, 95000},
	{3496, 100000},
	{3482, 105000},
	{3467, 110000},
	{3452, 115000},
	{3437, 120000},
	{3421, 125000},
	{0, 125000},
};

static const struct tsadc_table rk3328_code_table[] = {
	{0, -40000},
	{296, -40000},
	{304, -35000},
	{313, -30000},
	{331, -20000},
	{340, -15000},
	{349, -10000},
	{359, -5000},
	{368, 0},
	{378, 5000},
	{388, 10000},
	{398, 15000},
	{408, 20000},
	{418, 25000},
	{429, 30000},
	{440, 35000},
	{451, 40000},
	{462, 45000},
	{473, 50000},
	{485, 55000},
	{496, 60000},
	{508, 65000},
	{521, 70000},
	{533, 75000},
	{546, 80000},
	{559, 85000},
	{572, 90000},
	{586, 95000},
	{600, 100000},
	{614, 105000},
	{629, 110000},
	{644, 115000},
	{659, 120000},
	{675, 125000},
	{TSADCV2_DATA_MASK, 125000},
};

static const struct tsadc_table rk3368_code_table[] = {
	{0, -40000},
	{106, -40000},
	{108, -35000},
	{110, -30000},
	{112, -25000},
	{114, -20000},
	{116, -15000},
	{118, -10000},
	{120, -5000},
	{122, 0},
	{124, 5000},
	{126, 10000},
	{128, 15000},
	{130, 20000},
	{132, 25000},
	{134, 30000},
	{136, 35000},
	{138, 40000},
	{140, 45000},
	{142, 50000},
	{144, 55000},
	{146, 60000},
	{148, 65000},
	{150, 70000},
	{152, 75000},
	{154, 80000},
	{156, 85000},
	{158, 90000},
	{160, 95000},
	{162, 100000},
	{163, 105000},
	{165, 110000},
	{167, 115000},
	{169, 120000},
	{171, 125000},
	{TSADCV3_DATA_MASK, 125000},
};

static const struct tsadc_table rk3399_code_table[] = {
	{0, -40000},
	{402, -40000},
	{410, -35000},
	{419, -30000},
	{427, -25000},
	{436, -20000},
	{444, -15000},
	{453, -10000},
	{461, -5000},
	{470, 0},
	{478, 5000},
	{487, 10000},
	{496, 15000},
	{504, 20000},
	{513, 25000},
	{521, 30000},
	{530, 35000},
	{538, 40000},
	{547, 45000},
	{555, 50000},
	{564, 55000},
	{573, 60000},
	{581, 65000},
	{590, 70000},
	{599, 75000},
	{607, 80000},
	{616, 85000},
	{624, 90000},
	{633, 95000},
	{642, 100000},
	{650, 105000},
	{659, 110000},
	{668, 115000},
	{677, 120000},
	{685, 125000},
	{TSADCV3_DATA_MASK, 125000},
};

static u32 rk_tsadcv2_temp_to_code(const struct chip_tsadc_table *table,
				   int temp)
{
	int high, low, mid;
	unsigned long num;
	unsigned int denom;
	u32 error = table->data_mask;

	low = 0;
	high = (table->length - 1) - 1; /* ignore the last check for table */
	mid = (high + low) / 2;

	/* Return mask code data when the temp is over table range */
	if (temp < table->id[low].temp || temp > table->id[high].temp)
		goto exit;

	while (low <= high) {
		if (temp == table->id[mid].temp)
			return table->id[mid].code;
		else if (temp < table->id[mid].temp)
			high = mid - 1;
		else
			low = mid + 1;
		mid = (low + high) / 2;
	}

	/*
	 * The conversion code granularity provided by the table. Let's
	 * assume that the relationship between temperature and
	 * analog value between 2 table entries is linear and interpolate
	 * to produce less granular result.
	 */
	num = abs(table->id[mid + 1].code - table->id[mid].code);
	num *= temp - table->id[mid].temp;
	denom = table->id[mid + 1].temp - table->id[mid].temp;

	switch (table->mode) {
	case ADC_DECREMENT:
		return table->id[mid].code - (num / denom);
	case ADC_INCREMENT:
		return table->id[mid].code + (num / denom);
	default:
		pr_err("%s: unknown table mode: %d\n", __func__, table->mode);
		return error;
	}

exit:
	pr_err("%s: invalid temperature, temp=%d error=%d\n",
	       __func__, temp, error);
	return error;
}

static int rk_tsadcv2_code_to_temp(const struct chip_tsadc_table *table,
				   u32 code, int *temp)
{
	unsigned int low = 1;
	unsigned int high = table->length - 1;
	unsigned int mid = (low + high) / 2;
	unsigned int num;
	unsigned long denom;

	WARN_ON(table->length < 2);

	switch (table->mode) {
	case ADC_DECREMENT:
		code &= table->data_mask;
		if (code <= table->id[high].code)
			return -EAGAIN;		/* Incorrect reading */

		while (low <= high) {
			if (code >= table->id[mid].code &&
			    code < table->id[mid - 1].code)
				break;
			else if (code < table->id[mid].code)
				low = mid + 1;
			else
				high = mid - 1;

			mid = (low + high) / 2;
		}
		break;
	case ADC_INCREMENT:
		code &= table->data_mask;
		if (code < table->id[low].code)
			return -EAGAIN;		/* Incorrect reading */

		while (low <= high) {
			if (code <= table->id[mid].code &&
			    code > table->id[mid - 1].code)
				break;
			else if (code > table->id[mid].code)
				low = mid + 1;
			else
				high = mid - 1;

			mid = (low + high) / 2;
		}
		break;
	default:
		pr_err("%s: unknown table mode: %d\n", __func__, table->mode);
		return -EINVAL;
	}

	/*
	 * The 5C granularity provided by the table is too much. Let's
	 * assume that the relationship between sensor readings and
	 * temperature between 2 table entries is linear and interpolate
	 * to produce less granular result.
	 */
	num = table->id[mid].temp - table->id[mid - 1].temp;
	num *= abs(table->id[mid - 1].code - code);
	denom = abs(table->id[mid - 1].code - table->id[mid].code);
	*temp = table->id[mid - 1].temp + (num / denom);

	return 0;
}

/**
 * rk_tsadcv2_initialize - initialize TASDC Controller.
 *
 * (1) Set TSADC_V2_AUTO_PERIOD:
 *     Configure the interleave between every two accessing of
 *     TSADC in normal operation.
 *
 * (2) Set TSADCV2_AUTO_PERIOD_HT:
 *     Configure the interleave between every two accessing of
 *     TSADC after the temperature is higher than COM_SHUT or COM_INT.
 *
 * (3) Set TSADCV2_HIGH_INT_DEBOUNCE and TSADC_HIGHT_TSHUT_DEBOUNCE:
 *     If the temperature is higher than COMP_INT or COMP_SHUT for
 *     "debounce" times, TSADC controller will generate interrupt or TSHUT.
 */
static void rk_tsadcv2_initialize(struct regmap *grf, void __iomem *regs,
				  enum tshut_polarity tshut_polarity)
{
	if (tshut_polarity == TSHUT_HIGH_ACTIVE)
		writel_relaxed(0U | TSADCV2_AUTO_TSHUT_POLARITY_HIGH,
			       regs + TSADCV2_AUTO_CON);
	else
		writel_relaxed(0U & ~TSADCV2_AUTO_TSHUT_POLARITY_HIGH,
			       regs + TSADCV2_AUTO_CON);

	writel_relaxed(TSADCV2_AUTO_PERIOD_TIME, regs + TSADCV2_AUTO_PERIOD);
	writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT,
		       regs + TSADCV2_HIGHT_INT_DEBOUNCE);
	writel_relaxed(TSADCV2_AUTO_PERIOD_HT_TIME,
		       regs + TSADCV2_AUTO_PERIOD_HT);
	writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT,
		       regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE);
}

/**
 * rk_tsadcv3_initialize - initialize TASDC Controller.
 *
 * (1) The tsadc control power sequence.
 *
 * (2) Set TSADC_V2_AUTO_PERIOD:
 *     Configure the interleave between every two accessing of
 *     TSADC in normal operation.
 *
 * (2) Set TSADCV2_AUTO_PERIOD_HT:
 *     Configure the interleave between every two accessing of
 *     TSADC after the temperature is higher than COM_SHUT or COM_INT.
 *
 * (3) Set TSADCV2_HIGH_INT_DEBOUNCE and TSADC_HIGHT_TSHUT_DEBOUNCE:
 *     If the temperature is higher than COMP_INT or COMP_SHUT for
 *     "debounce" times, TSADC controller will generate interrupt or TSHUT.
 */
static void rk_tsadcv3_initialize(struct regmap *grf, void __iomem *regs,
				  enum tshut_polarity tshut_polarity)
{
	/* The tsadc control power sequence */
	if (IS_ERR(grf)) {
		/* Set interleave value to workround ic time sync issue */
		writel_relaxed(TSADCV2_USER_INTER_PD_SOC, regs +
			       TSADCV2_USER_CON);

		writel_relaxed(TSADCV2_AUTO_PERIOD_TIME,
			       regs + TSADCV2_AUTO_PERIOD);
		writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT,
			       regs + TSADCV2_HIGHT_INT_DEBOUNCE);
		writel_relaxed(TSADCV2_AUTO_PERIOD_HT_TIME,
			       regs + TSADCV2_AUTO_PERIOD_HT);
		writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT,
			       regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE);

	} else {
		/* Enable the voltage common mode feature */
		regmap_write(grf, GRF_TSADC_TESTBIT_L, GRF_TSADC_VCM_EN_L);
		regmap_write(grf, GRF_TSADC_TESTBIT_H, GRF_TSADC_VCM_EN_H);

		usleep_range(15, 100); /* The spec note says at least 15 us */
		regmap_write(grf, GRF_SARADC_TESTBIT, GRF_SARADC_TESTBIT_ON);
		regmap_write(grf, GRF_TSADC_TESTBIT_H, GRF_TSADC_TESTBIT_H_ON);
		usleep_range(90, 200); /* The spec note says at least 90 us */

		writel_relaxed(TSADCV3_AUTO_PERIOD_TIME,
			       regs + TSADCV2_AUTO_PERIOD);
		writel_relaxed(TSADCV2_HIGHT_INT_DEBOUNCE_COUNT,
			       regs + TSADCV2_HIGHT_INT_DEBOUNCE);
		writel_relaxed(TSADCV3_AUTO_PERIOD_HT_TIME,
			       regs + TSADCV2_AUTO_PERIOD_HT);
		writel_relaxed(TSADCV2_HIGHT_TSHUT_DEBOUNCE_COUNT,
			       regs + TSADCV2_HIGHT_TSHUT_DEBOUNCE);
	}

	if (tshut_polarity == TSHUT_HIGH_ACTIVE)
		writel_relaxed(0U | TSADCV2_AUTO_TSHUT_POLARITY_HIGH,
			       regs + TSADCV2_AUTO_CON);
	else
		writel_relaxed(0U & ~TSADCV2_AUTO_TSHUT_POLARITY_HIGH,
			       regs + TSADCV2_AUTO_CON);
}

static void rk_tsadcv2_irq_ack(void __iomem *regs)
{
	u32 val;

	val = readl_relaxed(regs + TSADCV2_INT_PD);
	writel_relaxed(val & TSADCV2_INT_PD_CLEAR_MASK, regs + TSADCV2_INT_PD);
}

static void rk_tsadcv3_irq_ack(void __iomem *regs)
{
	u32 val;

	val = readl_relaxed(regs + TSADCV2_INT_PD);
	writel_relaxed(val & TSADCV3_INT_PD_CLEAR_MASK, regs + TSADCV2_INT_PD);
}

static void rk_tsadcv2_control(void __iomem *regs, bool enable)
{
	u32 val;

	val = readl_relaxed(regs + TSADCV2_AUTO_CON);
	if (enable)
		val |= TSADCV2_AUTO_EN;
	else
		val &= ~TSADCV2_AUTO_EN;

	writel_relaxed(val, regs + TSADCV2_AUTO_CON);
}

/**
 * rk_tsadcv3_control - the tsadc controller is enabled or disabled.
 *
 * NOTE: TSADC controller works at auto mode, and some SoCs need set the
 * tsadc_q_sel bit on TSADCV2_AUTO_CON[1]. The (1024 - tsadc_q) as output
 * adc value if setting this bit to enable.
 */
static void rk_tsadcv3_control(void __iomem *regs, bool enable)
{
	u32 val;

	val = readl_relaxed(regs + TSADCV2_AUTO_CON);
	if (enable)
		val |= TSADCV2_AUTO_EN | TSADCV3_AUTO_Q_SEL_EN;
	else
		val &= ~TSADCV2_AUTO_EN;

	writel_relaxed(val, regs + TSADCV2_AUTO_CON);
}

static int rk_tsadcv2_get_temp(const struct chip_tsadc_table *table,
			       int chn, void __iomem *regs, int *temp)
{
	u32 val;

	val = readl_relaxed(regs + TSADCV2_DATA(chn));

	return rk_tsadcv2_code_to_temp(table, val, temp);
}

static int rk_tsadcv2_alarm_temp(const struct chip_tsadc_table *table,
				 int chn, void __iomem *regs, int temp)
{
	u32 alarm_value;
	u32 int_en, int_clr;

	/*
	 * In some cases, some sensors didn't need the trip points, the
	 * set_trips will pass {-INT_MAX, INT_MAX} to trigger tsadc alarm
	 * in the end, ignore this case and disable the high temperature
	 * interrupt.
	 */
	if (temp == INT_MAX) {
		int_clr = readl_relaxed(regs + TSADCV2_INT_EN);
		int_clr &= ~TSADCV2_INT_SRC_EN(chn);
		writel_relaxed(int_clr, regs + TSADCV2_INT_EN);
		return 0;
	}

	/* Make sure the value is valid */
	alarm_value = rk_tsadcv2_temp_to_code(table, temp);
	if (alarm_value == table->data_mask)
		return -ERANGE;

	writel_relaxed(alarm_value & table->data_mask,
		       regs + TSADCV2_COMP_INT(chn));

	int_en = readl_relaxed(regs + TSADCV2_INT_EN);
	int_en |= TSADCV2_INT_SRC_EN(chn);
	writel_relaxed(int_en, regs + TSADCV2_INT_EN);

	return 0;
}

static int rk_tsadcv2_tshut_temp(const struct chip_tsadc_table *table,
				 int chn, void __iomem *regs, int temp)
{
	u32 tshut_value, val;

	/* Make sure the value is valid */
	tshut_value = rk_tsadcv2_temp_to_code(table, temp);
	if (tshut_value == table->data_mask)
		return -ERANGE;

	writel_relaxed(tshut_value, regs + TSADCV2_COMP_SHUT(chn));

	/* TSHUT will be valid */
	val = readl_relaxed(regs + TSADCV2_AUTO_CON);
	writel_relaxed(val | TSADCV2_AUTO_SRC_EN(chn), regs + TSADCV2_AUTO_CON);

	return 0;
}

static void rk_tsadcv2_tshut_mode(int chn, void __iomem *regs,
				  enum tshut_mode mode)
{
	u32 val;

	val = readl_relaxed(regs + TSADCV2_INT_EN);
	if (mode == TSHUT_MODE_GPIO) {
		val &= ~TSADCV2_SHUT_2CRU_SRC_EN(chn);
		val |= TSADCV2_SHUT_2GPIO_SRC_EN(chn);
	} else {
		val &= ~TSADCV2_SHUT_2GPIO_SRC_EN(chn);
		val |= TSADCV2_SHUT_2CRU_SRC_EN(chn);
	}

	writel_relaxed(val, regs + TSADCV2_INT_EN);
}

static const struct rockchip_tsadc_chip rv1108_tsadc_data = {
	.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
	.chn_num = 1, /* one channel for tsadc */

	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
	.tshut_temp = 95000,

	.initialize = rk_tsadcv2_initialize,
	.irq_ack = rk_tsadcv3_irq_ack,
	.control = rk_tsadcv3_control,
	.get_temp = rk_tsadcv2_get_temp,
	.set_alarm_temp = rk_tsadcv2_alarm_temp,
	.set_tshut_temp = rk_tsadcv2_tshut_temp,
	.set_tshut_mode = rk_tsadcv2_tshut_mode,

	.table = {
		.id = rv1108_table,
		.length = ARRAY_SIZE(rv1108_table),
		.data_mask = TSADCV2_DATA_MASK,
		.mode = ADC_INCREMENT,
	},
};

static const struct rockchip_tsadc_chip rk3228_tsadc_data = {
	.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
	.chn_num = 1, /* one channel for tsadc */

	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
	.tshut_temp = 95000,

	.initialize = rk_tsadcv2_initialize,
	.irq_ack = rk_tsadcv3_irq_ack,
	.control = rk_tsadcv3_control,
	.get_temp = rk_tsadcv2_get_temp,
	.set_alarm_temp = rk_tsadcv2_alarm_temp,
	.set_tshut_temp = rk_tsadcv2_tshut_temp,
	.set_tshut_mode = rk_tsadcv2_tshut_mode,

	.table = {
		.id = rk3228_code_table,
		.length = ARRAY_SIZE(rk3228_code_table),
		.data_mask = TSADCV3_DATA_MASK,
		.mode = ADC_INCREMENT,
	},
};

static const struct rockchip_tsadc_chip rk3288_tsadc_data = {
	.chn_id[SENSOR_CPU] = 1, /* cpu sensor is channel 1 */
	.chn_id[SENSOR_GPU] = 2, /* gpu sensor is channel 2 */
	.chn_num = 2, /* two channels for tsadc */

	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
	.tshut_temp = 95000,

	.initialize = rk_tsadcv2_initialize,
	.irq_ack = rk_tsadcv2_irq_ack,
	.control = rk_tsadcv2_control,
	.get_temp = rk_tsadcv2_get_temp,
	.set_alarm_temp = rk_tsadcv2_alarm_temp,
	.set_tshut_temp = rk_tsadcv2_tshut_temp,
	.set_tshut_mode = rk_tsadcv2_tshut_mode,

	.table = {
		.id = rk3288_code_table,
		.length = ARRAY_SIZE(rk3288_code_table),
		.data_mask = TSADCV2_DATA_MASK,
		.mode = ADC_DECREMENT,
	},
};

static const struct rockchip_tsadc_chip rk3328_tsadc_data = {
	.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
	.chn_num = 1, /* one channels for tsadc */

	.tshut_mode = TSHUT_MODE_CRU, /* default TSHUT via CRU */
	.tshut_temp = 95000,

	.initialize = rk_tsadcv2_initialize,
	.irq_ack = rk_tsadcv3_irq_ack,
	.control = rk_tsadcv3_control,
	.get_temp = rk_tsadcv2_get_temp,
	.set_alarm_temp = rk_tsadcv2_alarm_temp,
	.set_tshut_temp = rk_tsadcv2_tshut_temp,
	.set_tshut_mode = rk_tsadcv2_tshut_mode,

	.table = {
		.id = rk3328_code_table,
		.length = ARRAY_SIZE(rk3328_code_table),
		.data_mask = TSADCV2_DATA_MASK,
		.mode = ADC_INCREMENT,
	},
};

static const struct rockchip_tsadc_chip rk3366_tsadc_data = {
	.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
	.chn_id[SENSOR_GPU] = 1, /* gpu sensor is channel 1 */
	.chn_num = 2, /* two channels for tsadc */

	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
	.tshut_temp = 95000,

	.initialize = rk_tsadcv3_initialize,
	.irq_ack = rk_tsadcv3_irq_ack,
	.control = rk_tsadcv3_control,
	.get_temp = rk_tsadcv2_get_temp,
	.set_alarm_temp = rk_tsadcv2_alarm_temp,
	.set_tshut_temp = rk_tsadcv2_tshut_temp,
	.set_tshut_mode = rk_tsadcv2_tshut_mode,

	.table = {
		.id = rk3228_code_table,
		.length = ARRAY_SIZE(rk3228_code_table),
		.data_mask = TSADCV3_DATA_MASK,
		.mode = ADC_INCREMENT,
	},
};

static const struct rockchip_tsadc_chip rk3368_tsadc_data = {
	.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
	.chn_id[SENSOR_GPU] = 1, /* gpu sensor is channel 1 */
	.chn_num = 2, /* two channels for tsadc */

	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
	.tshut_temp = 95000,

	.initialize = rk_tsadcv2_initialize,
	.irq_ack = rk_tsadcv2_irq_ack,
	.control = rk_tsadcv2_control,
	.get_temp = rk_tsadcv2_get_temp,
	.set_alarm_temp = rk_tsadcv2_alarm_temp,
	.set_tshut_temp = rk_tsadcv2_tshut_temp,
	.set_tshut_mode = rk_tsadcv2_tshut_mode,

	.table = {
		.id = rk3368_code_table,
		.length = ARRAY_SIZE(rk3368_code_table),
		.data_mask = TSADCV3_DATA_MASK,
		.mode = ADC_INCREMENT,
	},
};

static const struct rockchip_tsadc_chip rk3399_tsadc_data = {
	.chn_id[SENSOR_CPU] = 0, /* cpu sensor is channel 0 */
	.chn_id[SENSOR_GPU] = 1, /* gpu sensor is channel 1 */
	.chn_num = 2, /* two channels for tsadc */

	.tshut_mode = TSHUT_MODE_GPIO, /* default TSHUT via GPIO give PMIC */
	.tshut_polarity = TSHUT_LOW_ACTIVE, /* default TSHUT LOW ACTIVE */
	.tshut_temp = 95000,

	.initialize = rk_tsadcv3_initialize,
	.irq_ack = rk_tsadcv3_irq_ack,
	.control = rk_tsadcv3_control,
	.get_temp = rk_tsadcv2_get_temp,
	.set_alarm_temp = rk_tsadcv2_alarm_temp,
	.set_tshut_temp = rk_tsadcv2_tshut_temp,
	.set_tshut_mode = rk_tsadcv2_tshut_mode,

	.table = {
		.id = rk3399_code_table,
		.length = ARRAY_SIZE(rk3399_code_table),
		.data_mask = TSADCV3_DATA_MASK,
		.mode = ADC_INCREMENT,
	},
};

static const struct of_device_id of_rockchip_thermal_match[] = {
	{
		.compatible = "rockchip,rv1108-tsadc",
		.data = (void *)&rv1108_tsadc_data,
	},
	{
		.compatible = "rockchip,rk3228-tsadc",
		.data = (void *)&rk3228_tsadc_data,
	},
	{
		.compatible = "rockchip,rk3288-tsadc",
		.data = (void *)&rk3288_tsadc_data,
	},
	{
		.compatible = "rockchip,rk3328-tsadc",
		.data = (void *)&rk3328_tsadc_data,
	},
	{
		.compatible = "rockchip,rk3366-tsadc",
		.data = (void *)&rk3366_tsadc_data,
	},
	{
		.compatible = "rockchip,rk3368-tsadc",
		.data = (void *)&rk3368_tsadc_data,
	},
	{
		.compatible = "rockchip,rk3399-tsadc",
		.data = (void *)&rk3399_tsadc_data,
	},
	{ /* end */ },
};
MODULE_DEVICE_TABLE(of, of_rockchip_thermal_match);

static void
rockchip_thermal_toggle_sensor(struct rockchip_thermal_sensor *sensor, bool on)
{
	struct thermal_zone_device *tzd = sensor->tzd;

	tzd->ops->set_mode(tzd,
		on ? THERMAL_DEVICE_ENABLED : THERMAL_DEVICE_DISABLED);
}

static irqreturn_t rockchip_thermal_alarm_irq_thread(int irq, void *dev)
{
	struct rockchip_thermal_data *thermal = dev;
	int i;

	dev_dbg(&thermal->pdev->dev, "thermal alarm\n");

	thermal->chip->irq_ack(thermal->regs);

	for (i = 0; i < thermal->chip->chn_num; i++)
		thermal_zone_device_update(thermal->sensors[i].tzd,
					   THERMAL_EVENT_UNSPECIFIED);

	return IRQ_HANDLED;
}

static int rockchip_thermal_set_trips(void *_sensor, int low, int high)
{
	struct rockchip_thermal_sensor *sensor = _sensor;
	struct rockchip_thermal_data *thermal = sensor->thermal;
	const struct rockchip_tsadc_chip *tsadc = thermal->chip;

	dev_dbg(&thermal->pdev->dev, "%s: sensor %d: low: %d, high %d\n",
		__func__, sensor->id, low, high);

	return tsadc->set_alarm_temp(&tsadc->table,
				     sensor->id, thermal->regs, high);
}

static int rockchip_thermal_get_temp(void *_sensor, int *out_temp)
{
	struct rockchip_thermal_sensor *sensor = _sensor;
	struct rockchip_thermal_data *thermal = sensor->thermal;
	const struct rockchip_tsadc_chip *tsadc = sensor->thermal->chip;
	int retval;

	retval = tsadc->get_temp(&tsadc->table,
				 sensor->id, thermal->regs, out_temp);
	dev_dbg(&thermal->pdev->dev, "sensor %d - temp: %d, retval: %d\n",
		sensor->id, *out_temp, retval);

	return retval;
}

static const struct thermal_zone_of_device_ops rockchip_of_thermal_ops = {
	.get_temp = rockchip_thermal_get_temp,
	.set_trips = rockchip_thermal_set_trips,
};

static int rockchip_configure_from_dt(struct device *dev,
				      struct device_node *np,
				      struct rockchip_thermal_data *thermal)
{
	u32 shut_temp, tshut_mode, tshut_polarity;

	if (of_property_read_u32(np, "rockchip,hw-tshut-temp", &shut_temp)) {
		dev_warn(dev,
			 "Missing tshut temp property, using default %d\n",
			 thermal->chip->tshut_temp);
		thermal->tshut_temp = thermal->chip->tshut_temp;
	} else {
		if (shut_temp > INT_MAX) {
			dev_err(dev, "Invalid tshut temperature specified: %d\n",
				shut_temp);
			return -ERANGE;
		}
		thermal->tshut_temp = shut_temp;
	}

	if (of_property_read_u32(np, "rockchip,hw-tshut-mode", &tshut_mode)) {
		dev_warn(dev,
			 "Missing tshut mode property, using default (%s)\n",
			 thermal->chip->tshut_mode == TSHUT_MODE_GPIO ?
				"gpio" : "cru");
		thermal->tshut_mode = thermal->chip->tshut_mode;
	} else {
		thermal->tshut_mode = tshut_mode;
	}

	if (thermal->tshut_mode > 1) {
		dev_err(dev, "Invalid tshut mode specified: %d\n",
			thermal->tshut_mode);
		return -EINVAL;
	}

	if (of_property_read_u32(np, "rockchip,hw-tshut-polarity",
				 &tshut_polarity)) {
		dev_warn(dev,
			 "Missing tshut-polarity property, using default (%s)\n",
			 thermal->chip->tshut_polarity == TSHUT_LOW_ACTIVE ?
				"low" : "high");
		thermal->tshut_polarity = thermal->chip->tshut_polarity;
	} else {
		thermal->tshut_polarity = tshut_polarity;
	}

	if (thermal->tshut_polarity > 1) {
		dev_err(dev, "Invalid tshut-polarity specified: %d\n",
			thermal->tshut_polarity);
		return -EINVAL;
	}

	/* The tsadc wont to handle the error in here since some SoCs didn't
	 * need this property.
	 */
	thermal->grf = syscon_regmap_lookup_by_phandle(np, "rockchip,grf");
	if (IS_ERR(thermal->grf))
		dev_warn(dev, "Missing rockchip,grf property\n");

	return 0;
}

static int
rockchip_thermal_register_sensor(struct platform_device *pdev,
				 struct rockchip_thermal_data *thermal,
				 struct rockchip_thermal_sensor *sensor,
				 int id)
{
	const struct rockchip_tsadc_chip *tsadc = thermal->chip;
	int error;

	tsadc->set_tshut_mode(id, thermal->regs, thermal->tshut_mode);

	error = tsadc->set_tshut_temp(&tsadc->table, id, thermal->regs,
			      thermal->tshut_temp);
	if (error)
		dev_err(&pdev->dev, "%s: invalid tshut=%d, error=%d\n",
			__func__, thermal->tshut_temp, error);

	sensor->thermal = thermal;
	sensor->id = id;
	sensor->tzd = devm_thermal_zone_of_sensor_register(&pdev->dev, id,
					sensor, &rockchip_of_thermal_ops);
	if (IS_ERR(sensor->tzd)) {
		error = PTR_ERR(sensor->tzd);
		dev_err(&pdev->dev, "failed to register sensor %d: %d\n",
			id, error);
		return error;
	}

	return 0;
}

/**
 * Reset TSADC Controller, reset all tsadc registers.
 */
static void rockchip_thermal_reset_controller(struct reset_control *reset)
{
	reset_control_assert(reset);
	usleep_range(10, 20);
	reset_control_deassert(reset);
}

static int rockchip_thermal_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct rockchip_thermal_data *thermal;
	const struct of_device_id *match;
	struct resource *res;
	int irq;
	int i;
	int error;

	match = of_match_node(of_rockchip_thermal_match, np);
	if (!match)
		return -ENXIO;

	irq = platform_get_irq(pdev, 0);
	if (irq < 0) {
		dev_err(&pdev->dev, "no irq resource?\n");
		return -EINVAL;
	}

	thermal = devm_kzalloc(&pdev->dev, sizeof(struct rockchip_thermal_data),
			       GFP_KERNEL);
	if (!thermal)
		return -ENOMEM;

	thermal->pdev = pdev;

	thermal->chip = (const struct rockchip_tsadc_chip *)match->data;
	if (!thermal->chip)
		return -EINVAL;

	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	thermal->regs = devm_ioremap_resource(&pdev->dev, res);
	if (IS_ERR(thermal->regs))
		return PTR_ERR(thermal->regs);

	thermal->reset = devm_reset_control_get(&pdev->dev, "tsadc-apb");
	if (IS_ERR(thermal->reset)) {
		error = PTR_ERR(thermal->reset);
		dev_err(&pdev->dev, "failed to get tsadc reset: %d\n", error);
		return error;
	}

	thermal->clk = devm_clk_get(&pdev->dev, "tsadc");
	if (IS_ERR(thermal->clk)) {
		error = PTR_ERR(thermal->clk);
		dev_err(&pdev->dev, "failed to get tsadc clock: %d\n", error);
		return error;
	}

	thermal->pclk = devm_clk_get(&pdev->dev, "apb_pclk");
	if (IS_ERR(thermal->pclk)) {
		error = PTR_ERR(thermal->pclk);
		dev_err(&pdev->dev, "failed to get apb_pclk clock: %d\n",
			error);
		return error;
	}

	error = clk_prepare_enable(thermal->clk);
	if (error) {
		dev_err(&pdev->dev, "failed to enable converter clock: %d\n",
			error);
		return error;
	}

	error = clk_prepare_enable(thermal->pclk);
	if (error) {
		dev_err(&pdev->dev, "failed to enable pclk: %d\n", error);
		goto err_disable_clk;
	}

	rockchip_thermal_reset_controller(thermal->reset);

	error = rockchip_configure_from_dt(&pdev->dev, np, thermal);
	if (error) {
		dev_err(&pdev->dev, "failed to parse device tree data: %d\n",
			error);
		goto err_disable_pclk;
	}

	thermal->chip->initialize(thermal->grf, thermal->regs,
				  thermal->tshut_polarity);

	for (i = 0; i < thermal->chip->chn_num; i++) {
		error = rockchip_thermal_register_sensor(pdev, thermal,
						&thermal->sensors[i],
						thermal->chip->chn_id[i]);
		if (error) {
			dev_err(&pdev->dev,
				"failed to register sensor[%d] : error = %d\n",
				i, error);
			goto err_disable_pclk;
		}
	}

	error = devm_request_threaded_irq(&pdev->dev, irq, NULL,
					  &rockchip_thermal_alarm_irq_thread,
					  IRQF_ONESHOT,
					  "rockchip_thermal", thermal);
	if (error) {
		dev_err(&pdev->dev,
			"failed to request tsadc irq: %d\n", error);
		goto err_disable_pclk;
	}

	thermal->chip->control(thermal->regs, true);

	for (i = 0; i < thermal->chip->chn_num; i++)
		rockchip_thermal_toggle_sensor(&thermal->sensors[i], true);

	platform_set_drvdata(pdev, thermal);

	return 0;

err_disable_pclk:
	clk_disable_unprepare(thermal->pclk);
err_disable_clk:
	clk_disable_unprepare(thermal->clk);

	return error;
}

static int rockchip_thermal_remove(struct platform_device *pdev)
{
	struct rockchip_thermal_data *thermal = platform_get_drvdata(pdev);
	int i;

	for (i = 0; i < thermal->chip->chn_num; i++) {
		struct rockchip_thermal_sensor *sensor = &thermal->sensors[i];

		rockchip_thermal_toggle_sensor(sensor, false);
	}

	thermal->chip->control(thermal->regs, false);

	clk_disable_unprepare(thermal->pclk);
	clk_disable_unprepare(thermal->clk);

	return 0;
}

static int __maybe_unused rockchip_thermal_suspend(struct device *dev)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct rockchip_thermal_data *thermal = platform_get_drvdata(pdev);
	int i;

	for (i = 0; i < thermal->chip->chn_num; i++)
		rockchip_thermal_toggle_sensor(&thermal->sensors[i], false);

	thermal->chip->control(thermal->regs, false);

	clk_disable(thermal->pclk);
	clk_disable(thermal->clk);

	pinctrl_pm_select_sleep_state(dev);

	return 0;
}

static int __maybe_unused rockchip_thermal_resume(struct device *dev)
{
	struct platform_device *pdev = to_platform_device(dev);
	struct rockchip_thermal_data *thermal = platform_get_drvdata(pdev);
	int i;
	int error;

	error = clk_enable(thermal->clk);
	if (error)
		return error;

	error = clk_enable(thermal->pclk);
	if (error) {
		clk_disable(thermal->clk);
		return error;
	}

	rockchip_thermal_reset_controller(thermal->reset);

	thermal->chip->initialize(thermal->grf, thermal->regs,
				  thermal->tshut_polarity);

	for (i = 0; i < thermal->chip->chn_num; i++) {
		int id = thermal->sensors[i].id;

		thermal->chip->set_tshut_mode(id, thermal->regs,
					      thermal->tshut_mode);

		error = thermal->chip->set_tshut_temp(&thermal->chip->table,
					      id, thermal->regs,
					      thermal->tshut_temp);
		if (error)
			dev_err(&pdev->dev, "%s: invalid tshut=%d, error=%d\n",
				__func__, thermal->tshut_temp, error);
	}

	thermal->chip->control(thermal->regs, true);

	for (i = 0; i < thermal->chip->chn_num; i++)
		rockchip_thermal_toggle_sensor(&thermal->sensors[i], true);

	pinctrl_pm_select_default_state(dev);

	return 0;
}

static SIMPLE_DEV_PM_OPS(rockchip_thermal_pm_ops,
			 rockchip_thermal_suspend, rockchip_thermal_resume);

static struct platform_driver rockchip_thermal_driver = {
	.driver = {
		.name = "rockchip-thermal",
		.pm = &rockchip_thermal_pm_ops,
		.of_match_table = of_rockchip_thermal_match,
	},
	.probe = rockchip_thermal_probe,
	.remove = rockchip_thermal_remove,
};

module_platform_driver(rockchip_thermal_driver);

MODULE_DESCRIPTION("ROCKCHIP THERMAL Driver");
MODULE_AUTHOR("Rockchip, Inc.");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:rockchip-thermal");