tsens-v1.c
12.7 KB
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
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2019, Linaro Limited
*/
#include <linux/bitops.h>
#include <linux/regmap.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include "tsens.h"
/* ----- SROT ------ */
#define SROT_HW_VER_OFF 0x0000
#define SROT_CTRL_OFF 0x0004
/* ----- TM ------ */
#define TM_INT_EN_OFF 0x0000
#define TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF 0x0004
#define TM_Sn_STATUS_OFF 0x0044
#define TM_TRDY_OFF 0x0084
#define TM_HIGH_LOW_INT_STATUS_OFF 0x0088
#define TM_HIGH_LOW_Sn_INT_THRESHOLD_OFF 0x0090
/* eeprom layout data for msm8956/76 (v1) */
#define MSM8976_BASE0_MASK 0xff
#define MSM8976_BASE1_MASK 0xff
#define MSM8976_BASE1_SHIFT 8
#define MSM8976_S0_P1_MASK 0x3f00
#define MSM8976_S1_P1_MASK 0x3f00000
#define MSM8976_S2_P1_MASK 0x3f
#define MSM8976_S3_P1_MASK 0x3f000
#define MSM8976_S4_P1_MASK 0x3f00
#define MSM8976_S5_P1_MASK 0x3f00000
#define MSM8976_S6_P1_MASK 0x3f
#define MSM8976_S7_P1_MASK 0x3f000
#define MSM8976_S8_P1_MASK 0x1f8
#define MSM8976_S9_P1_MASK 0x1f8000
#define MSM8976_S10_P1_MASK 0xf8000000
#define MSM8976_S10_P1_MASK_1 0x1
#define MSM8976_S0_P2_MASK 0xfc000
#define MSM8976_S1_P2_MASK 0xfc000000
#define MSM8976_S2_P2_MASK 0xfc0
#define MSM8976_S3_P2_MASK 0xfc0000
#define MSM8976_S4_P2_MASK 0xfc000
#define MSM8976_S5_P2_MASK 0xfc000000
#define MSM8976_S6_P2_MASK 0xfc0
#define MSM8976_S7_P2_MASK 0xfc0000
#define MSM8976_S8_P2_MASK 0x7e00
#define MSM8976_S9_P2_MASK 0x7e00000
#define MSM8976_S10_P2_MASK 0x7e
#define MSM8976_S0_P1_SHIFT 8
#define MSM8976_S1_P1_SHIFT 20
#define MSM8976_S2_P1_SHIFT 0
#define MSM8976_S3_P1_SHIFT 12
#define MSM8976_S4_P1_SHIFT 8
#define MSM8976_S5_P1_SHIFT 20
#define MSM8976_S6_P1_SHIFT 0
#define MSM8976_S7_P1_SHIFT 12
#define MSM8976_S8_P1_SHIFT 3
#define MSM8976_S9_P1_SHIFT 15
#define MSM8976_S10_P1_SHIFT 27
#define MSM8976_S10_P1_SHIFT_1 0
#define MSM8976_S0_P2_SHIFT 14
#define MSM8976_S1_P2_SHIFT 26
#define MSM8976_S2_P2_SHIFT 6
#define MSM8976_S3_P2_SHIFT 18
#define MSM8976_S4_P2_SHIFT 14
#define MSM8976_S5_P2_SHIFT 26
#define MSM8976_S6_P2_SHIFT 6
#define MSM8976_S7_P2_SHIFT 18
#define MSM8976_S8_P2_SHIFT 9
#define MSM8976_S9_P2_SHIFT 21
#define MSM8976_S10_P2_SHIFT 1
#define MSM8976_CAL_SEL_MASK 0x3
#define MSM8976_CAL_DEGC_PT1 30
#define MSM8976_CAL_DEGC_PT2 120
#define MSM8976_SLOPE_FACTOR 1000
#define MSM8976_SLOPE_DEFAULT 3200
/* eeprom layout data for qcs404/405 (v1) */
#define BASE0_MASK 0x000007f8
#define BASE1_MASK 0x0007f800
#define BASE0_SHIFT 3
#define BASE1_SHIFT 11
#define S0_P1_MASK 0x0000003f
#define S1_P1_MASK 0x0003f000
#define S2_P1_MASK 0x3f000000
#define S3_P1_MASK 0x000003f0
#define S4_P1_MASK 0x003f0000
#define S5_P1_MASK 0x0000003f
#define S6_P1_MASK 0x0003f000
#define S7_P1_MASK 0x3f000000
#define S8_P1_MASK 0x000003f0
#define S9_P1_MASK 0x003f0000
#define S0_P2_MASK 0x00000fc0
#define S1_P2_MASK 0x00fc0000
#define S2_P2_MASK_1_0 0xc0000000
#define S2_P2_MASK_5_2 0x0000000f
#define S3_P2_MASK 0x0000fc00
#define S4_P2_MASK 0x0fc00000
#define S5_P2_MASK 0x00000fc0
#define S6_P2_MASK 0x00fc0000
#define S7_P2_MASK_1_0 0xc0000000
#define S7_P2_MASK_5_2 0x0000000f
#define S8_P2_MASK 0x0000fc00
#define S9_P2_MASK 0x0fc00000
#define S0_P1_SHIFT 0
#define S0_P2_SHIFT 6
#define S1_P1_SHIFT 12
#define S1_P2_SHIFT 18
#define S2_P1_SHIFT 24
#define S2_P2_SHIFT_1_0 30
#define S2_P2_SHIFT_5_2 0
#define S3_P1_SHIFT 4
#define S3_P2_SHIFT 10
#define S4_P1_SHIFT 16
#define S4_P2_SHIFT 22
#define S5_P1_SHIFT 0
#define S5_P2_SHIFT 6
#define S6_P1_SHIFT 12
#define S6_P2_SHIFT 18
#define S7_P1_SHIFT 24
#define S7_P2_SHIFT_1_0 30
#define S7_P2_SHIFT_5_2 0
#define S8_P1_SHIFT 4
#define S8_P2_SHIFT 10
#define S9_P1_SHIFT 16
#define S9_P2_SHIFT 22
#define CAL_SEL_MASK 7
#define CAL_SEL_SHIFT 0
static void compute_intercept_slope_8976(struct tsens_priv *priv,
u32 *p1, u32 *p2, u32 mode)
{
int i;
priv->sensor[0].slope = 3313;
priv->sensor[1].slope = 3275;
priv->sensor[2].slope = 3320;
priv->sensor[3].slope = 3246;
priv->sensor[4].slope = 3279;
priv->sensor[5].slope = 3257;
priv->sensor[6].slope = 3234;
priv->sensor[7].slope = 3269;
priv->sensor[8].slope = 3255;
priv->sensor[9].slope = 3239;
priv->sensor[10].slope = 3286;
for (i = 0; i < priv->num_sensors; i++) {
priv->sensor[i].offset = (p1[i] * MSM8976_SLOPE_FACTOR) -
(MSM8976_CAL_DEGC_PT1 *
priv->sensor[i].slope);
}
}
static int calibrate_v1(struct tsens_priv *priv)
{
u32 base0 = 0, base1 = 0;
u32 p1[10], p2[10];
u32 mode = 0, lsb = 0, msb = 0;
u32 *qfprom_cdata;
int i;
qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
if (IS_ERR(qfprom_cdata))
return PTR_ERR(qfprom_cdata);
mode = (qfprom_cdata[4] & CAL_SEL_MASK) >> CAL_SEL_SHIFT;
dev_dbg(priv->dev, "calibration mode is %d\n", mode);
switch (mode) {
case TWO_PT_CALIB:
base1 = (qfprom_cdata[4] & BASE1_MASK) >> BASE1_SHIFT;
p2[0] = (qfprom_cdata[0] & S0_P2_MASK) >> S0_P2_SHIFT;
p2[1] = (qfprom_cdata[0] & S1_P2_MASK) >> S1_P2_SHIFT;
/* This value is split over two registers, 2 bits and 4 bits */
lsb = (qfprom_cdata[0] & S2_P2_MASK_1_0) >> S2_P2_SHIFT_1_0;
msb = (qfprom_cdata[1] & S2_P2_MASK_5_2) >> S2_P2_SHIFT_5_2;
p2[2] = msb << 2 | lsb;
p2[3] = (qfprom_cdata[1] & S3_P2_MASK) >> S3_P2_SHIFT;
p2[4] = (qfprom_cdata[1] & S4_P2_MASK) >> S4_P2_SHIFT;
p2[5] = (qfprom_cdata[2] & S5_P2_MASK) >> S5_P2_SHIFT;
p2[6] = (qfprom_cdata[2] & S6_P2_MASK) >> S6_P2_SHIFT;
/* This value is split over two registers, 2 bits and 4 bits */
lsb = (qfprom_cdata[2] & S7_P2_MASK_1_0) >> S7_P2_SHIFT_1_0;
msb = (qfprom_cdata[3] & S7_P2_MASK_5_2) >> S7_P2_SHIFT_5_2;
p2[7] = msb << 2 | lsb;
p2[8] = (qfprom_cdata[3] & S8_P2_MASK) >> S8_P2_SHIFT;
p2[9] = (qfprom_cdata[3] & S9_P2_MASK) >> S9_P2_SHIFT;
for (i = 0; i < priv->num_sensors; i++)
p2[i] = ((base1 + p2[i]) << 2);
fallthrough;
case ONE_PT_CALIB2:
base0 = (qfprom_cdata[4] & BASE0_MASK) >> BASE0_SHIFT;
p1[0] = (qfprom_cdata[0] & S0_P1_MASK) >> S0_P1_SHIFT;
p1[1] = (qfprom_cdata[0] & S1_P1_MASK) >> S1_P1_SHIFT;
p1[2] = (qfprom_cdata[0] & S2_P1_MASK) >> S2_P1_SHIFT;
p1[3] = (qfprom_cdata[1] & S3_P1_MASK) >> S3_P1_SHIFT;
p1[4] = (qfprom_cdata[1] & S4_P1_MASK) >> S4_P1_SHIFT;
p1[5] = (qfprom_cdata[2] & S5_P1_MASK) >> S5_P1_SHIFT;
p1[6] = (qfprom_cdata[2] & S6_P1_MASK) >> S6_P1_SHIFT;
p1[7] = (qfprom_cdata[2] & S7_P1_MASK) >> S7_P1_SHIFT;
p1[8] = (qfprom_cdata[3] & S8_P1_MASK) >> S8_P1_SHIFT;
p1[9] = (qfprom_cdata[3] & S9_P1_MASK) >> S9_P1_SHIFT;
for (i = 0; i < priv->num_sensors; i++)
p1[i] = (((base0) + p1[i]) << 2);
break;
default:
for (i = 0; i < priv->num_sensors; i++) {
p1[i] = 500;
p2[i] = 780;
}
break;
}
compute_intercept_slope(priv, p1, p2, mode);
kfree(qfprom_cdata);
return 0;
}
static int calibrate_8976(struct tsens_priv *priv)
{
int base0 = 0, base1 = 0, i;
u32 p1[11], p2[11];
int mode = 0, tmp = 0;
u32 *qfprom_cdata;
qfprom_cdata = (u32 *)qfprom_read(priv->dev, "calib");
if (IS_ERR(qfprom_cdata))
return PTR_ERR(qfprom_cdata);
mode = (qfprom_cdata[4] & MSM8976_CAL_SEL_MASK);
dev_dbg(priv->dev, "calibration mode is %d\n", mode);
switch (mode) {
case TWO_PT_CALIB:
base1 = (qfprom_cdata[2] & MSM8976_BASE1_MASK) >> MSM8976_BASE1_SHIFT;
p2[0] = (qfprom_cdata[0] & MSM8976_S0_P2_MASK) >> MSM8976_S0_P2_SHIFT;
p2[1] = (qfprom_cdata[0] & MSM8976_S1_P2_MASK) >> MSM8976_S1_P2_SHIFT;
p2[2] = (qfprom_cdata[1] & MSM8976_S2_P2_MASK) >> MSM8976_S2_P2_SHIFT;
p2[3] = (qfprom_cdata[1] & MSM8976_S3_P2_MASK) >> MSM8976_S3_P2_SHIFT;
p2[4] = (qfprom_cdata[2] & MSM8976_S4_P2_MASK) >> MSM8976_S4_P2_SHIFT;
p2[5] = (qfprom_cdata[2] & MSM8976_S5_P2_MASK) >> MSM8976_S5_P2_SHIFT;
p2[6] = (qfprom_cdata[3] & MSM8976_S6_P2_MASK) >> MSM8976_S6_P2_SHIFT;
p2[7] = (qfprom_cdata[3] & MSM8976_S7_P2_MASK) >> MSM8976_S7_P2_SHIFT;
p2[8] = (qfprom_cdata[4] & MSM8976_S8_P2_MASK) >> MSM8976_S8_P2_SHIFT;
p2[9] = (qfprom_cdata[4] & MSM8976_S9_P2_MASK) >> MSM8976_S9_P2_SHIFT;
p2[10] = (qfprom_cdata[5] & MSM8976_S10_P2_MASK) >> MSM8976_S10_P2_SHIFT;
for (i = 0; i < priv->num_sensors; i++)
p2[i] = ((base1 + p2[i]) << 2);
fallthrough;
case ONE_PT_CALIB2:
base0 = qfprom_cdata[0] & MSM8976_BASE0_MASK;
p1[0] = (qfprom_cdata[0] & MSM8976_S0_P1_MASK) >> MSM8976_S0_P1_SHIFT;
p1[1] = (qfprom_cdata[0] & MSM8976_S1_P1_MASK) >> MSM8976_S1_P1_SHIFT;
p1[2] = (qfprom_cdata[1] & MSM8976_S2_P1_MASK) >> MSM8976_S2_P1_SHIFT;
p1[3] = (qfprom_cdata[1] & MSM8976_S3_P1_MASK) >> MSM8976_S3_P1_SHIFT;
p1[4] = (qfprom_cdata[2] & MSM8976_S4_P1_MASK) >> MSM8976_S4_P1_SHIFT;
p1[5] = (qfprom_cdata[2] & MSM8976_S5_P1_MASK) >> MSM8976_S5_P1_SHIFT;
p1[6] = (qfprom_cdata[3] & MSM8976_S6_P1_MASK) >> MSM8976_S6_P1_SHIFT;
p1[7] = (qfprom_cdata[3] & MSM8976_S7_P1_MASK) >> MSM8976_S7_P1_SHIFT;
p1[8] = (qfprom_cdata[4] & MSM8976_S8_P1_MASK) >> MSM8976_S8_P1_SHIFT;
p1[9] = (qfprom_cdata[4] & MSM8976_S9_P1_MASK) >> MSM8976_S9_P1_SHIFT;
p1[10] = (qfprom_cdata[4] & MSM8976_S10_P1_MASK) >> MSM8976_S10_P1_SHIFT;
tmp = (qfprom_cdata[5] & MSM8976_S10_P1_MASK_1) << MSM8976_S10_P1_SHIFT_1;
p1[10] |= tmp;
for (i = 0; i < priv->num_sensors; i++)
p1[i] = (((base0) + p1[i]) << 2);
break;
default:
for (i = 0; i < priv->num_sensors; i++) {
p1[i] = 500;
p2[i] = 780;
}
break;
}
compute_intercept_slope_8976(priv, p1, p2, mode);
kfree(qfprom_cdata);
return 0;
}
/* v1.x: msm8956,8976,qcs404,405 */
static struct tsens_features tsens_v1_feat = {
.ver_major = VER_1_X,
.crit_int = 0,
.adc = 1,
.srot_split = 1,
.max_sensors = 11,
};
static const struct reg_field tsens_v1_regfields[MAX_REGFIELDS] = {
/* ----- SROT ------ */
/* VERSION */
[VER_MAJOR] = REG_FIELD(SROT_HW_VER_OFF, 28, 31),
[VER_MINOR] = REG_FIELD(SROT_HW_VER_OFF, 16, 27),
[VER_STEP] = REG_FIELD(SROT_HW_VER_OFF, 0, 15),
/* CTRL_OFFSET */
[TSENS_EN] = REG_FIELD(SROT_CTRL_OFF, 0, 0),
[TSENS_SW_RST] = REG_FIELD(SROT_CTRL_OFF, 1, 1),
[SENSOR_EN] = REG_FIELD(SROT_CTRL_OFF, 3, 13),
/* ----- TM ------ */
/* INTERRUPT ENABLE */
[INT_EN] = REG_FIELD(TM_INT_EN_OFF, 0, 0),
/* UPPER/LOWER TEMPERATURE THRESHOLDS */
REG_FIELD_FOR_EACH_SENSOR11(LOW_THRESH, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 0, 9),
REG_FIELD_FOR_EACH_SENSOR11(UP_THRESH, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 10, 19),
/* UPPER/LOWER INTERRUPTS [CLEAR/STATUS] */
REG_FIELD_FOR_EACH_SENSOR11(LOW_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 20, 20),
REG_FIELD_FOR_EACH_SENSOR11(UP_INT_CLEAR, TM_Sn_UPPER_LOWER_STATUS_CTRL_OFF, 21, 21),
[LOW_INT_STATUS_0] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 0, 0),
[LOW_INT_STATUS_1] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 1, 1),
[LOW_INT_STATUS_2] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 2, 2),
[LOW_INT_STATUS_3] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 3, 3),
[LOW_INT_STATUS_4] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 4, 4),
[LOW_INT_STATUS_5] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 5, 5),
[LOW_INT_STATUS_6] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 6, 6),
[LOW_INT_STATUS_7] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 7, 7),
[UP_INT_STATUS_0] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 8, 8),
[UP_INT_STATUS_1] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 9, 9),
[UP_INT_STATUS_2] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 10, 10),
[UP_INT_STATUS_3] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 11, 11),
[UP_INT_STATUS_4] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 12, 12),
[UP_INT_STATUS_5] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 13, 13),
[UP_INT_STATUS_6] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 14, 14),
[UP_INT_STATUS_7] = REG_FIELD(TM_HIGH_LOW_INT_STATUS_OFF, 15, 15),
/* NO CRITICAL INTERRUPT SUPPORT on v1 */
/* Sn_STATUS */
REG_FIELD_FOR_EACH_SENSOR11(LAST_TEMP, TM_Sn_STATUS_OFF, 0, 9),
REG_FIELD_FOR_EACH_SENSOR11(VALID, TM_Sn_STATUS_OFF, 14, 14),
/* xxx_STATUS bits: 1 == threshold violated */
REG_FIELD_FOR_EACH_SENSOR11(MIN_STATUS, TM_Sn_STATUS_OFF, 10, 10),
REG_FIELD_FOR_EACH_SENSOR11(LOWER_STATUS, TM_Sn_STATUS_OFF, 11, 11),
REG_FIELD_FOR_EACH_SENSOR11(UPPER_STATUS, TM_Sn_STATUS_OFF, 12, 12),
/* No CRITICAL field on v1.x */
REG_FIELD_FOR_EACH_SENSOR11(MAX_STATUS, TM_Sn_STATUS_OFF, 13, 13),
/* TRDY: 1=ready, 0=in progress */
[TRDY] = REG_FIELD(TM_TRDY_OFF, 0, 0),
};
static const struct tsens_ops ops_generic_v1 = {
.init = init_common,
.calibrate = calibrate_v1,
.get_temp = get_temp_tsens_valid,
};
struct tsens_plat_data data_tsens_v1 = {
.ops = &ops_generic_v1,
.feat = &tsens_v1_feat,
.fields = tsens_v1_regfields,
};
static const struct tsens_ops ops_8976 = {
.init = init_common,
.calibrate = calibrate_8976,
.get_temp = get_temp_tsens_valid,
};
/* Valid for both MSM8956 and MSM8976. Sensor ID 3 is unused. */
struct tsens_plat_data data_8976 = {
.num_sensors = 11,
.ops = &ops_8976,
.hw_ids = (unsigned int[]){0, 1, 2, 4, 5, 6, 7, 8, 9, 10},
.feat = &tsens_v1_feat,
.fields = tsens_v1_regfields,
};