forked from grate-driver/linux
-
Notifications
You must be signed in to change notification settings - Fork 0
/
da9052-core.c
638 lines (595 loc) · 15.6 KB
/
da9052-core.c
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
/*
* Device access for Dialog DA9052 PMICs.
*
* Copyright(c) 2011 Dialog Semiconductor Ltd.
*
* Author: David Dajun Chen <dchen@diasemi.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mfd/core.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/mfd/da9052/da9052.h>
#include <linux/mfd/da9052/pdata.h>
#include <linux/mfd/da9052/reg.h>
static bool da9052_reg_readable(struct device *dev, unsigned int reg)
{
switch (reg) {
case DA9052_PAGE0_CON_REG:
case DA9052_STATUS_A_REG:
case DA9052_STATUS_B_REG:
case DA9052_STATUS_C_REG:
case DA9052_STATUS_D_REG:
case DA9052_EVENT_A_REG:
case DA9052_EVENT_B_REG:
case DA9052_EVENT_C_REG:
case DA9052_EVENT_D_REG:
case DA9052_FAULTLOG_REG:
case DA9052_IRQ_MASK_A_REG:
case DA9052_IRQ_MASK_B_REG:
case DA9052_IRQ_MASK_C_REG:
case DA9052_IRQ_MASK_D_REG:
case DA9052_CONTROL_A_REG:
case DA9052_CONTROL_B_REG:
case DA9052_CONTROL_C_REG:
case DA9052_CONTROL_D_REG:
case DA9052_PDDIS_REG:
case DA9052_INTERFACE_REG:
case DA9052_RESET_REG:
case DA9052_GPIO_0_1_REG:
case DA9052_GPIO_2_3_REG:
case DA9052_GPIO_4_5_REG:
case DA9052_GPIO_6_7_REG:
case DA9052_GPIO_8_9_REG:
case DA9052_GPIO_10_11_REG:
case DA9052_GPIO_12_13_REG:
case DA9052_GPIO_14_15_REG:
case DA9052_ID_0_1_REG:
case DA9052_ID_2_3_REG:
case DA9052_ID_4_5_REG:
case DA9052_ID_6_7_REG:
case DA9052_ID_8_9_REG:
case DA9052_ID_10_11_REG:
case DA9052_ID_12_13_REG:
case DA9052_ID_14_15_REG:
case DA9052_ID_16_17_REG:
case DA9052_ID_18_19_REG:
case DA9052_ID_20_21_REG:
case DA9052_SEQ_STATUS_REG:
case DA9052_SEQ_A_REG:
case DA9052_SEQ_B_REG:
case DA9052_SEQ_TIMER_REG:
case DA9052_BUCKA_REG:
case DA9052_BUCKB_REG:
case DA9052_BUCKCORE_REG:
case DA9052_BUCKPRO_REG:
case DA9052_BUCKMEM_REG:
case DA9052_BUCKPERI_REG:
case DA9052_LDO1_REG:
case DA9052_LDO2_REG:
case DA9052_LDO3_REG:
case DA9052_LDO4_REG:
case DA9052_LDO5_REG:
case DA9052_LDO6_REG:
case DA9052_LDO7_REG:
case DA9052_LDO8_REG:
case DA9052_LDO9_REG:
case DA9052_LDO10_REG:
case DA9052_SUPPLY_REG:
case DA9052_PULLDOWN_REG:
case DA9052_CHGBUCK_REG:
case DA9052_WAITCONT_REG:
case DA9052_ISET_REG:
case DA9052_BATCHG_REG:
case DA9052_CHG_CONT_REG:
case DA9052_INPUT_CONT_REG:
case DA9052_CHG_TIME_REG:
case DA9052_BBAT_CONT_REG:
case DA9052_BOOST_REG:
case DA9052_LED_CONT_REG:
case DA9052_LEDMIN123_REG:
case DA9052_LED1_CONF_REG:
case DA9052_LED2_CONF_REG:
case DA9052_LED3_CONF_REG:
case DA9052_LED1CONT_REG:
case DA9052_LED2CONT_REG:
case DA9052_LED3CONT_REG:
case DA9052_LED_CONT_4_REG:
case DA9052_LED_CONT_5_REG:
case DA9052_ADC_MAN_REG:
case DA9052_ADC_CONT_REG:
case DA9052_ADC_RES_L_REG:
case DA9052_ADC_RES_H_REG:
case DA9052_VDD_RES_REG:
case DA9052_VDD_MON_REG:
case DA9052_ICHG_AV_REG:
case DA9052_ICHG_THD_REG:
case DA9052_ICHG_END_REG:
case DA9052_TBAT_RES_REG:
case DA9052_TBAT_HIGHP_REG:
case DA9052_TBAT_HIGHN_REG:
case DA9052_TBAT_LOW_REG:
case DA9052_T_OFFSET_REG:
case DA9052_ADCIN4_RES_REG:
case DA9052_AUTO4_HIGH_REG:
case DA9052_AUTO4_LOW_REG:
case DA9052_ADCIN5_RES_REG:
case DA9052_AUTO5_HIGH_REG:
case DA9052_AUTO5_LOW_REG:
case DA9052_ADCIN6_RES_REG:
case DA9052_AUTO6_HIGH_REG:
case DA9052_AUTO6_LOW_REG:
case DA9052_TJUNC_RES_REG:
case DA9052_TSI_CONT_A_REG:
case DA9052_TSI_CONT_B_REG:
case DA9052_TSI_X_MSB_REG:
case DA9052_TSI_Y_MSB_REG:
case DA9052_TSI_LSB_REG:
case DA9052_TSI_Z_MSB_REG:
case DA9052_COUNT_S_REG:
case DA9052_COUNT_MI_REG:
case DA9052_COUNT_H_REG:
case DA9052_COUNT_D_REG:
case DA9052_COUNT_MO_REG:
case DA9052_COUNT_Y_REG:
case DA9052_ALARM_MI_REG:
case DA9052_ALARM_H_REG:
case DA9052_ALARM_D_REG:
case DA9052_ALARM_MO_REG:
case DA9052_ALARM_Y_REG:
case DA9052_SECOND_A_REG:
case DA9052_SECOND_B_REG:
case DA9052_SECOND_C_REG:
case DA9052_SECOND_D_REG:
case DA9052_PAGE1_CON_REG:
return true;
default:
return false;
}
}
static bool da9052_reg_writeable(struct device *dev, unsigned int reg)
{
switch (reg) {
case DA9052_PAGE0_CON_REG:
case DA9052_EVENT_A_REG:
case DA9052_EVENT_B_REG:
case DA9052_EVENT_C_REG:
case DA9052_EVENT_D_REG:
case DA9052_FAULTLOG_REG:
case DA9052_IRQ_MASK_A_REG:
case DA9052_IRQ_MASK_B_REG:
case DA9052_IRQ_MASK_C_REG:
case DA9052_IRQ_MASK_D_REG:
case DA9052_CONTROL_A_REG:
case DA9052_CONTROL_B_REG:
case DA9052_CONTROL_C_REG:
case DA9052_CONTROL_D_REG:
case DA9052_PDDIS_REG:
case DA9052_RESET_REG:
case DA9052_GPIO_0_1_REG:
case DA9052_GPIO_2_3_REG:
case DA9052_GPIO_4_5_REG:
case DA9052_GPIO_6_7_REG:
case DA9052_GPIO_8_9_REG:
case DA9052_GPIO_10_11_REG:
case DA9052_GPIO_12_13_REG:
case DA9052_GPIO_14_15_REG:
case DA9052_ID_0_1_REG:
case DA9052_ID_2_3_REG:
case DA9052_ID_4_5_REG:
case DA9052_ID_6_7_REG:
case DA9052_ID_8_9_REG:
case DA9052_ID_10_11_REG:
case DA9052_ID_12_13_REG:
case DA9052_ID_14_15_REG:
case DA9052_ID_16_17_REG:
case DA9052_ID_18_19_REG:
case DA9052_ID_20_21_REG:
case DA9052_SEQ_STATUS_REG:
case DA9052_SEQ_A_REG:
case DA9052_SEQ_B_REG:
case DA9052_SEQ_TIMER_REG:
case DA9052_BUCKA_REG:
case DA9052_BUCKB_REG:
case DA9052_BUCKCORE_REG:
case DA9052_BUCKPRO_REG:
case DA9052_BUCKMEM_REG:
case DA9052_BUCKPERI_REG:
case DA9052_LDO1_REG:
case DA9052_LDO2_REG:
case DA9052_LDO3_REG:
case DA9052_LDO4_REG:
case DA9052_LDO5_REG:
case DA9052_LDO6_REG:
case DA9052_LDO7_REG:
case DA9052_LDO8_REG:
case DA9052_LDO9_REG:
case DA9052_LDO10_REG:
case DA9052_SUPPLY_REG:
case DA9052_PULLDOWN_REG:
case DA9052_CHGBUCK_REG:
case DA9052_WAITCONT_REG:
case DA9052_ISET_REG:
case DA9052_BATCHG_REG:
case DA9052_CHG_CONT_REG:
case DA9052_INPUT_CONT_REG:
case DA9052_BBAT_CONT_REG:
case DA9052_BOOST_REG:
case DA9052_LED_CONT_REG:
case DA9052_LEDMIN123_REG:
case DA9052_LED1_CONF_REG:
case DA9052_LED2_CONF_REG:
case DA9052_LED3_CONF_REG:
case DA9052_LED1CONT_REG:
case DA9052_LED2CONT_REG:
case DA9052_LED3CONT_REG:
case DA9052_LED_CONT_4_REG:
case DA9052_LED_CONT_5_REG:
case DA9052_ADC_MAN_REG:
case DA9052_ADC_CONT_REG:
case DA9052_ADC_RES_L_REG:
case DA9052_ADC_RES_H_REG:
case DA9052_VDD_RES_REG:
case DA9052_VDD_MON_REG:
case DA9052_ICHG_THD_REG:
case DA9052_ICHG_END_REG:
case DA9052_TBAT_HIGHP_REG:
case DA9052_TBAT_HIGHN_REG:
case DA9052_TBAT_LOW_REG:
case DA9052_T_OFFSET_REG:
case DA9052_AUTO4_HIGH_REG:
case DA9052_AUTO4_LOW_REG:
case DA9052_AUTO5_HIGH_REG:
case DA9052_AUTO5_LOW_REG:
case DA9052_AUTO6_HIGH_REG:
case DA9052_AUTO6_LOW_REG:
case DA9052_TSI_CONT_A_REG:
case DA9052_TSI_CONT_B_REG:
case DA9052_COUNT_S_REG:
case DA9052_COUNT_MI_REG:
case DA9052_COUNT_H_REG:
case DA9052_COUNT_D_REG:
case DA9052_COUNT_MO_REG:
case DA9052_COUNT_Y_REG:
case DA9052_ALARM_MI_REG:
case DA9052_ALARM_H_REG:
case DA9052_ALARM_D_REG:
case DA9052_ALARM_MO_REG:
case DA9052_ALARM_Y_REG:
case DA9052_PAGE1_CON_REG:
return true;
default:
return false;
}
}
static bool da9052_reg_volatile(struct device *dev, unsigned int reg)
{
switch (reg) {
case DA9052_STATUS_A_REG:
case DA9052_STATUS_B_REG:
case DA9052_STATUS_C_REG:
case DA9052_STATUS_D_REG:
case DA9052_EVENT_A_REG:
case DA9052_EVENT_B_REG:
case DA9052_EVENT_C_REG:
case DA9052_EVENT_D_REG:
case DA9052_CONTROL_B_REG:
case DA9052_CONTROL_D_REG:
case DA9052_SUPPLY_REG:
case DA9052_FAULTLOG_REG:
case DA9052_CHG_TIME_REG:
case DA9052_ADC_RES_L_REG:
case DA9052_ADC_RES_H_REG:
case DA9052_VDD_RES_REG:
case DA9052_ICHG_AV_REG:
case DA9052_TBAT_RES_REG:
case DA9052_ADCIN4_RES_REG:
case DA9052_ADCIN5_RES_REG:
case DA9052_ADCIN6_RES_REG:
case DA9052_TJUNC_RES_REG:
case DA9052_TSI_X_MSB_REG:
case DA9052_TSI_Y_MSB_REG:
case DA9052_TSI_LSB_REG:
case DA9052_TSI_Z_MSB_REG:
case DA9052_COUNT_S_REG:
case DA9052_COUNT_MI_REG:
case DA9052_COUNT_H_REG:
case DA9052_COUNT_D_REG:
case DA9052_COUNT_MO_REG:
case DA9052_COUNT_Y_REG:
case DA9052_ALARM_MI_REG:
return true;
default:
return false;
}
}
/*
* TBAT look-up table is computed from the R90 reg (8 bit register)
* reading as below. The battery temperature is in milliCentigrade
* TBAT = (1/(t1+1/298) - 273) * 1000 mC
* where t1 = (1/B)* ln(( ADCval * 2.5)/(R25*ITBAT*255))
* Default values are R25 = 10e3, B = 3380, ITBAT = 50e-6
* Example:
* R25=10E3, B=3380, ITBAT=50e-6, ADCVAL=62d calculates
* TBAT = 20015 mili degrees Centrigrade
*
*/
static const int32_t tbat_lookup[255] = {
183258, 144221, 124334, 111336, 101826, 94397, 88343, 83257,
78889, 75071, 71688, 68656, 65914, 63414, 61120, 59001,
570366, 55204, 53490, 51881, 50364, 48931, 47574, 46285,
45059, 43889, 42772, 41703, 40678, 39694, 38748, 37838,
36961, 36115, 35297, 34507, 33743, 33002, 32284, 31588,
30911, 30254, 29615, 28994, 28389, 27799, 27225, 26664,
26117, 25584, 25062, 24553, 24054, 23567, 23091, 22624,
22167, 21719, 21281, 20851, 20429, 20015, 19610, 19211,
18820, 18436, 18058, 17688, 17323, 16965, 16612, 16266,
15925, 15589, 15259, 14933, 14613, 14298, 13987, 13681,
13379, 13082, 12788, 12499, 12214, 11933, 11655, 11382,
11112, 10845, 10582, 10322, 10066, 9812, 9562, 9315,
9071, 8830, 8591, 8356, 8123, 7893, 7665, 7440,
7218, 6998, 6780, 6565, 6352, 6141, 5933, 5726,
5522, 5320, 5120, 4922, 4726, 4532, 4340, 4149,
3961, 3774, 3589, 3406, 3225, 3045, 2867, 2690,
2516, 2342, 2170, 2000, 1831, 1664, 1498, 1334,
1171, 1009, 849, 690, 532, 376, 221, 67,
-84, -236, -386, -535, -683, -830, -975, -1119,
-1263, -1405, -1546, -1686, -1825, -1964, -2101, -2237,
-2372, -2506, -2639, -2771, -2902, -3033, -3162, -3291,
-3418, -3545, -3671, -3796, -3920, -4044, -4166, -4288,
-4409, -4529, -4649, -4767, -4885, -5002, -5119, -5235,
-5349, -5464, -5577, -5690, -5802, -5913, -6024, -6134,
-6244, -6352, -6461, -6568, -6675, -6781, -6887, -6992,
-7096, -7200, -7303, -7406, -7508, -7609, -7710, -7810,
-7910, -8009, -8108, -8206, -8304, -8401, -8497, -8593,
-8689, -8784, -8878, -8972, -9066, -9159, -9251, -9343,
-9435, -9526, -9617, -9707, -9796, -9886, -9975, -10063,
-10151, -10238, -10325, -10412, -10839, -10923, -11007, -11090,
-11173, -11256, -11338, -11420, -11501, -11583, -11663, -11744,
-11823, -11903, -11982
};
static const u8 chan_mux[DA9052_ADC_VBBAT + 1] = {
[DA9052_ADC_VDDOUT] = DA9052_ADC_MAN_MUXSEL_VDDOUT,
[DA9052_ADC_ICH] = DA9052_ADC_MAN_MUXSEL_ICH,
[DA9052_ADC_TBAT] = DA9052_ADC_MAN_MUXSEL_TBAT,
[DA9052_ADC_VBAT] = DA9052_ADC_MAN_MUXSEL_VBAT,
[DA9052_ADC_IN4] = DA9052_ADC_MAN_MUXSEL_AD4,
[DA9052_ADC_IN5] = DA9052_ADC_MAN_MUXSEL_AD5,
[DA9052_ADC_IN6] = DA9052_ADC_MAN_MUXSEL_AD6,
[DA9052_ADC_VBBAT] = DA9052_ADC_MAN_MUXSEL_VBBAT
};
int da9052_adc_manual_read(struct da9052 *da9052, unsigned char channel)
{
int ret;
unsigned short calc_data;
unsigned short data;
unsigned char mux_sel;
if (channel > DA9052_ADC_VBBAT)
return -EINVAL;
mutex_lock(&da9052->auxadc_lock);
/* Channel gets activated on enabling the Conversion bit */
mux_sel = chan_mux[channel] | DA9052_ADC_MAN_MAN_CONV;
ret = da9052_reg_write(da9052, DA9052_ADC_MAN_REG, mux_sel);
if (ret < 0)
goto err;
/* Wait for an interrupt */
if (!wait_for_completion_timeout(&da9052->done,
msecs_to_jiffies(500))) {
dev_err(da9052->dev,
"timeout waiting for ADC conversion interrupt\n");
ret = -ETIMEDOUT;
goto err;
}
ret = da9052_reg_read(da9052, DA9052_ADC_RES_H_REG);
if (ret < 0)
goto err;
calc_data = (unsigned short)ret;
data = calc_data << 2;
ret = da9052_reg_read(da9052, DA9052_ADC_RES_L_REG);
if (ret < 0)
goto err;
calc_data = (unsigned short)(ret & DA9052_ADC_RES_LSB);
data |= calc_data;
ret = data;
err:
mutex_unlock(&da9052->auxadc_lock);
return ret;
}
EXPORT_SYMBOL_GPL(da9052_adc_manual_read);
int da9052_adc_read_temp(struct da9052 *da9052)
{
int tbat;
tbat = da9052_reg_read(da9052, DA9052_TBAT_RES_REG);
if (tbat <= 0)
return tbat;
/* ARRAY_SIZE check is not needed since TBAT is a 8-bit register */
return tbat_lookup[tbat - 1];
}
EXPORT_SYMBOL_GPL(da9052_adc_read_temp);
static const struct mfd_cell da9052_subdev_info[] = {
{
.name = "da9052-regulator",
.id = 0,
},
{
.name = "da9052-regulator",
.id = 1,
},
{
.name = "da9052-regulator",
.id = 2,
},
{
.name = "da9052-regulator",
.id = 3,
},
{
.name = "da9052-regulator",
.id = 4,
},
{
.name = "da9052-regulator",
.id = 5,
},
{
.name = "da9052-regulator",
.id = 6,
},
{
.name = "da9052-regulator",
.id = 7,
},
{
.name = "da9052-regulator",
.id = 8,
},
{
.name = "da9052-regulator",
.id = 9,
},
{
.name = "da9052-regulator",
.id = 10,
},
{
.name = "da9052-regulator",
.id = 11,
},
{
.name = "da9052-regulator",
.id = 12,
},
{
.name = "da9052-regulator",
.id = 13,
},
{
.name = "da9052-onkey",
},
{
.name = "da9052-rtc",
},
{
.name = "da9052-gpio",
},
{
.name = "da9052-hwmon",
},
{
.name = "da9052-leds",
},
{
.name = "da9052-wled1",
},
{
.name = "da9052-wled2",
},
{
.name = "da9052-wled3",
},
{
.name = "da9052-tsi",
},
{
.name = "da9052-bat",
},
{
.name = "da9052-watchdog",
},
};
const struct regmap_config da9052_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.cache_type = REGCACHE_RBTREE,
.max_register = DA9052_PAGE1_CON_REG,
.readable_reg = da9052_reg_readable,
.writeable_reg = da9052_reg_writeable,
.volatile_reg = da9052_reg_volatile,
};
EXPORT_SYMBOL_GPL(da9052_regmap_config);
static int da9052_clear_fault_log(struct da9052 *da9052)
{
int ret = 0;
int fault_log = 0;
fault_log = da9052_reg_read(da9052, DA9052_FAULTLOG_REG);
if (fault_log < 0) {
dev_err(da9052->dev,
"Cannot read FAULT_LOG %d\n", fault_log);
return fault_log;
}
if (fault_log) {
if (fault_log & DA9052_FAULTLOG_TWDERROR)
dev_dbg(da9052->dev,
"Fault log entry detected: TWD_ERROR\n");
if (fault_log & DA9052_FAULTLOG_VDDFAULT)
dev_dbg(da9052->dev,
"Fault log entry detected: VDD_FAULT\n");
if (fault_log & DA9052_FAULTLOG_VDDSTART)
dev_dbg(da9052->dev,
"Fault log entry detected: VDD_START\n");
if (fault_log & DA9052_FAULTLOG_TEMPOVER)
dev_dbg(da9052->dev,
"Fault log entry detected: TEMP_OVER\n");
if (fault_log & DA9052_FAULTLOG_KEYSHUT)
dev_dbg(da9052->dev,
"Fault log entry detected: KEY_SHUT\n");
if (fault_log & DA9052_FAULTLOG_NSDSET)
dev_dbg(da9052->dev,
"Fault log entry detected: nSD_SHUT\n");
if (fault_log & DA9052_FAULTLOG_WAITSET)
dev_dbg(da9052->dev,
"Fault log entry detected: WAIT_SHUT\n");
ret = da9052_reg_write(da9052,
DA9052_FAULTLOG_REG,
0xFF);
if (ret < 0)
dev_err(da9052->dev,
"Cannot reset FAULT_LOG values %d\n", ret);
}
return ret;
}
int da9052_device_init(struct da9052 *da9052, u8 chip_id)
{
struct da9052_pdata *pdata = dev_get_platdata(da9052->dev);
int ret;
mutex_init(&da9052->auxadc_lock);
init_completion(&da9052->done);
ret = da9052_clear_fault_log(da9052);
if (ret < 0)
dev_warn(da9052->dev, "Cannot clear FAULT_LOG\n");
if (pdata && pdata->init != NULL)
pdata->init(da9052);
da9052->chip_id = chip_id;
ret = da9052_irq_init(da9052);
if (ret != 0) {
dev_err(da9052->dev, "da9052_irq_init failed: %d\n", ret);
return ret;
}
ret = mfd_add_devices(da9052->dev, PLATFORM_DEVID_AUTO,
da9052_subdev_info,
ARRAY_SIZE(da9052_subdev_info), NULL, 0, NULL);
if (ret) {
dev_err(da9052->dev, "mfd_add_devices failed: %d\n", ret);
goto err;
}
return 0;
err:
da9052_irq_exit(da9052);
return ret;
}
void da9052_device_exit(struct da9052 *da9052)
{
mfd_remove_devices(da9052->dev);
da9052_irq_exit(da9052);
}
MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
MODULE_DESCRIPTION("DA9052 MFD Core");
MODULE_LICENSE("GPL");