aboutsummaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/wm8753.c
blob: aa091a0d81873b9f09ceeb30bf7dcd46f6d05cd1 (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
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
/*
 * wm8753.c  --  WM8753 ALSA Soc Audio driver
 *
 * Copyright 2003 Wolfson Microelectronics PLC.
 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
 *
 *  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.
 *
 * Notes:
 *  The WM8753 is a low power, high quality stereo codec with integrated PCM
 *  codec designed for portable digital telephony applications.
 *
 * Dual DAI:-
 *
 * This driver support 2 DAI PCM's. This makes the default PCM available for
 * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for
 * voice.
 *
 * Please note that the voice PCM can be connected directly to a Bluetooth
 * codec or GSM modem and thus cannot be read or written to, although it is
 * available to be configured with snd_hw_params(), etc and kcontrols in the
 * normal alsa manner.
 *
 * Fast DAI switching:-
 *
 * The driver can now fast switch between the DAI configurations via a
 * an alsa kcontrol. This allows the PCM to remain open.
 *
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/platform_device.h>
#include <linux/spi/spi.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <asm/div64.h>

#include "wm8753.h"

static int caps_charge = 2000;
module_param(caps_charge, int, 0);
MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");

static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
		unsigned int fmt);
static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
		unsigned int fmt);

/*
 * wm8753 register cache
 * We can't read the WM8753 register space when we
 * are using 2 wire for device control, so we cache them instead.
 */
static const u16 wm8753_reg[] = {
	0x0000, 0x0008, 0x0000, 0x000a,
	0x000a, 0x0033, 0x0000, 0x0007,
	0x00ff, 0x00ff, 0x000f, 0x000f,
	0x007b, 0x0000, 0x0032, 0x0000,
	0x00c3, 0x00c3, 0x00c0, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0000, 0x0000, 0x0000,
	0x0055, 0x0005, 0x0050, 0x0055,
	0x0050, 0x0055, 0x0050, 0x0055,
	0x0079, 0x0079, 0x0079, 0x0079,
	0x0079, 0x0000, 0x0000, 0x0000,
	0x0000, 0x0097, 0x0097, 0x0000,
	0x0004, 0x0000, 0x0083, 0x0024,
	0x01ba, 0x0000, 0x0083, 0x0024,
	0x01ba, 0x0000, 0x0000, 0x0000
};

/* codec private data */
struct wm8753_priv {
	enum snd_soc_control_type control_type;
	unsigned int sysclk;
	unsigned int pcmclk;

	unsigned int voice_fmt;
	unsigned int hifi_fmt;

	int dai_func;
};

#define wm8753_reset(c) snd_soc_write(c, WM8753_RESET, 0)

/*
 * WM8753 Controls
 */
static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
static const char *wm8753_base_filter[] =
	{"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
	"100Hz @ 8kHz", "200Hz @ 8kHz"};
static const char *wm8753_treble[] = {"8kHz", "4kHz"};
static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
static const char *wm8753_3d_func[] = {"Capture", "Playback"};
static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
	"Line 1", "Line 2"};
static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
	"Right PGA"};
static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
	"Left + Right"};
static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
	"Analogue Mix Right", "Digital Mono Mix"};
static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
	"82Hz @ 8kHz", "170Hz @ 8kHz"};
static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
	"Channel Swap"};
static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};

static const struct soc_enum wm8753_enum[] = {
SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
};


static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);
	struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);

	ucontrol->value.integer.value[0] = wm8753->dai_func;
	return 0;
}

static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);
	struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
	u16 ioctl;

	if (codec->active)
		return -EBUSY;

	ioctl = snd_soc_read(codec, WM8753_IOCTL);

	wm8753->dai_func = ucontrol->value.integer.value[0];

	if (((ioctl >> 2) & 0x3) == wm8753->dai_func)
		return 1;

	ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2);
	snd_soc_write(codec, WM8753_IOCTL, ioctl);


	wm8753_hifi_write_dai_fmt(codec, wm8753->hifi_fmt);
	wm8753_voice_write_dai_fmt(codec, wm8753->voice_fmt);

	return 1;
}

static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
static const unsigned int out_tlv[] = {
	TLV_DB_RANGE_HEAD(2),
	/* 0000000 - 0101111 = "Analogue mute" */
	0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
	48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
};
static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);

static const struct snd_kcontrol_new wm8753_snd_controls[] = {
SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),

SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
		 adc_tlv),

SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
		 0, 127, 0, out_tlv),
SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
		 127, 0, out_tlv),

SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),

SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
		 1, mix_tlv),
SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
		 7, 1, mix_tlv),
SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
		 1, voice_mix_tlv),

SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
	     1, 0),
SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
	     1, 0),

SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
	       mix_tlv),
SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
	       voice_mix_tlv),
SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),

SOC_ENUM("Bass Boost", wm8753_enum[0]),
SOC_ENUM("Bass Filter", wm8753_enum[1]),
SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),

SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
SOC_ENUM("Treble Cut-off", wm8753_enum[2]),

SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
	       rec_mix_tlv),
SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
	       rec_mix_tlv),

SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
		 pga_tlv),
SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),

SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),

SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),

SOC_ENUM("3D Function", wm8753_enum[5]),
SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),

SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),

SOC_ENUM("De-emphasis", wm8753_enum[8]),
SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
SOC_ENUM("Playback Phase", wm8753_enum[10]),

SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),

SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),

SOC_ENUM("ADC Data Select", wm8753_enum[27]),
SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
};

/*
 * _DAPM_ Controls
 */

/* Left Mixer */
static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
};

/* Right mixer */
static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
};

/* Mono mixer */
static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
};

/* Mono 2 Mux */
static const struct snd_kcontrol_new wm8753_mono2_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[17]);

/* Out 3 Mux */
static const struct snd_kcontrol_new wm8753_out3_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[18]);

/* Out 4 Mux */
static const struct snd_kcontrol_new wm8753_out4_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[19]);

/* ADC Mono Mix */
static const struct snd_kcontrol_new wm8753_adc_mono_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[22]);

/* Record mixer */
static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
};

/* Left ADC mux */
static const struct snd_kcontrol_new wm8753_adc_left_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[21]);

/* Right ADC mux */
static const struct snd_kcontrol_new wm8753_adc_right_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[20]);

/* MIC mux */
static const struct snd_kcontrol_new wm8753_mic_mux_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[16]);

/* ALC mixer */
static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
};

/* Left Line mux */
static const struct snd_kcontrol_new wm8753_line_left_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[14]);

/* Right Line mux */
static const struct snd_kcontrol_new wm8753_line_right_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[13]);

/* Mono Line mux */
static const struct snd_kcontrol_new wm8753_line_mono_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[12]);

/* Line mux and mixer */
static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[11]);

/* Rx mux and mixer */
static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[15]);

/* Mic Selector Mux */
static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
SOC_DAPM_ENUM("Route", wm8753_enum[25]);

static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
	&wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
SND_SOC_DAPM_OUTPUT("LOUT1"),
SND_SOC_DAPM_OUTPUT("LOUT2"),
SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
	&wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
SND_SOC_DAPM_OUTPUT("ROUT1"),
SND_SOC_DAPM_OUTPUT("ROUT2"),
SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
	&wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
SND_SOC_DAPM_OUTPUT("MONO1"),
SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
SND_SOC_DAPM_OUTPUT("MONO2"),
SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
SND_SOC_DAPM_OUTPUT("OUT3"),
SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
SND_SOC_DAPM_OUTPUT("OUT4"),
SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
	&wm8753_record_mixer_controls[0],
	ARRAY_SIZE(wm8753_record_mixer_controls)),
SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
	&wm8753_adc_mono_controls),
SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
	&wm8753_adc_mono_controls),
SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
	&wm8753_adc_left_controls),
SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
	&wm8753_adc_right_controls),
SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
	&wm8753_mic_mux_controls),
SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
	&wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
	&wm8753_line_left_controls),
SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
	&wm8753_line_right_controls),
SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
	&wm8753_line_mono_controls),
SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
	&wm8753_line_mux_mix_controls),
SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
	&wm8753_rx_mux_mix_controls),
SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
	&wm8753_mic_sel_mux_controls),
SND_SOC_DAPM_INPUT("LINE1"),
SND_SOC_DAPM_INPUT("LINE2"),
SND_SOC_DAPM_INPUT("RXP"),
SND_SOC_DAPM_INPUT("RXN"),
SND_SOC_DAPM_INPUT("ACIN"),
SND_SOC_DAPM_OUTPUT("ACOP"),
SND_SOC_DAPM_INPUT("MIC1N"),
SND_SOC_DAPM_INPUT("MIC1"),
SND_SOC_DAPM_INPUT("MIC2N"),
SND_SOC_DAPM_INPUT("MIC2"),
SND_SOC_DAPM_VMID("VREF"),
};

static const struct snd_soc_dapm_route audio_map[] = {
	/* left mixer */
	{"Left Mixer", "Left Playback Switch", "Left DAC"},
	{"Left Mixer", "Voice Playback Switch", "Voice DAC"},
	{"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
	{"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},

	/* right mixer */
	{"Right Mixer", "Right Playback Switch", "Right DAC"},
	{"Right Mixer", "Voice Playback Switch", "Voice DAC"},
	{"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
	{"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},

	/* mono mixer */
	{"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
	{"Mono Mixer", "Left Playback Switch", "Left DAC"},
	{"Mono Mixer", "Right Playback Switch", "Right DAC"},
	{"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
	{"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},

	/* left out */
	{"Left Out 1", NULL, "Left Mixer"},
	{"Left Out 2", NULL, "Left Mixer"},
	{"LOUT1", NULL, "Left Out 1"},
	{"LOUT2", NULL, "Left Out 2"},

	/* right out */
	{"Right Out 1", NULL, "Right Mixer"},
	{"Right Out 2", NULL, "Right Mixer"},
	{"ROUT1", NULL, "Right Out 1"},
	{"ROUT2", NULL, "Right Out 2"},

	/* mono 1 out */
	{"Mono Out 1", NULL, "Mono Mixer"},
	{"MONO1", NULL, "Mono Out 1"},

	/* mono 2 out */
	{"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
	{"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
	{"Mono 2 Mux", "Left", "Left Mixer"},
	{"Mono 2 Mux", "Right", "Right Mixer"},
	{"Mono Out 2", NULL, "Mono 2 Mux"},
	{"MONO2", NULL, "Mono Out 2"},

	/* out 3 */
	{"Out3 Left + Right", NULL, "Left Mixer"},
	{"Out3 Left + Right", NULL, "Right Mixer"},
	{"Out3 Mux", "VREF", "VREF"},
	{"Out3 Mux", "Left + Right", "Out3 Left + Right"},
	{"Out3 Mux", "ROUT2", "ROUT2"},
	{"Out 3", NULL, "Out3 Mux"},
	{"OUT3", NULL, "Out 3"},

	/* out 4 */
	{"Out4 Mux", "VREF", "VREF"},
	{"Out4 Mux", "Capture ST", "Playback Mixer"},
	{"Out4 Mux", "LOUT2", "LOUT2"},
	{"Out 4", NULL, "Out4 Mux"},
	{"OUT4", NULL, "Out 4"},

	/* record mixer  */
	{"Playback Mixer", "Left Capture Switch", "Left Mixer"},
	{"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
	{"Playback Mixer", "Right Capture Switch", "Right Mixer"},

	/* Mic/SideTone Mux */
	{"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
	{"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
	{"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
	{"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},

	/* Capture Left Mux */
	{"Capture Left Mux", "PGA", "Left Capture Volume"},
	{"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
	{"Capture Left Mux", "Line", "LINE1"},

	/* Capture Right Mux */
	{"Capture Right Mux", "PGA", "Right Capture Volume"},
	{"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
	{"Capture Right Mux", "Sidetone", "Playback Mixer"},

	/* Mono Capture mixer-mux */
	{"Capture Right Mixer", "Stereo", "Capture Right Mux"},
	{"Capture Left Mixer", "Stereo", "Capture Left Mux"},
	{"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
	{"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
	{"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
	{"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
	{"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
	{"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
	{"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
	{"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},

	/* ADC */
	{"Left ADC", NULL, "Capture Left Mixer"},
	{"Right ADC", NULL, "Capture Right Mixer"},

	/* Left Capture Volume */
	{"Left Capture Volume", NULL, "ACIN"},

	/* Right Capture Volume */
	{"Right Capture Volume", NULL, "Mic 2 Volume"},

	/* ALC Mixer */
	{"ALC Mixer", "Line Capture Switch", "Line Mixer"},
	{"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
	{"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
	{"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},

	/* Line Left Mux */
	{"Line Left Mux", "Line 1", "LINE1"},
	{"Line Left Mux", "Rx Mix", "Rx Mixer"},

	/* Line Right Mux */
	{"Line Right Mux", "Line 2", "LINE2"},
	{"Line Right Mux", "Rx Mix", "Rx Mixer"},

	/* Line Mono Mux */
	{"Line Mono Mux", "Line Mix", "Line Mixer"},
	{"Line Mono Mux", "Rx Mix", "Rx Mixer"},

	/* Line Mixer/Mux */
	{"Line Mixer", "Line 1 + 2", "LINE1"},
	{"Line Mixer", "Line 1 - 2", "LINE1"},
	{"Line Mixer", "Line 1 + 2", "LINE2"},
	{"Line Mixer", "Line 1 - 2", "LINE2"},
	{"Line Mixer", "Line 1", "LINE1"},
	{"Line Mixer", "Line 2", "LINE2"},

	/* Rx Mixer/Mux */
	{"Rx Mixer", "RXP - RXN", "RXP"},
	{"Rx Mixer", "RXP + RXN", "RXP"},
	{"Rx Mixer", "RXP - RXN", "RXN"},
	{"Rx Mixer", "RXP + RXN", "RXN"},
	{"Rx Mixer", "RXP", "RXP"},
	{"Rx Mixer", "RXN", "RXN"},

	/* Mic 1 Volume */
	{"Mic 1 Volume", NULL, "MIC1N"},
	{"Mic 1 Volume", NULL, "Mic Selection Mux"},

	/* Mic 2 Volume */
	{"Mic 2 Volume", NULL, "MIC2N"},
	{"Mic 2 Volume", NULL, "MIC2"},

	/* Mic Selector Mux */
	{"Mic Selection Mux", "Mic 1", "MIC1"},
	{"Mic Selection Mux", "Mic 2", "MIC2N"},
	{"Mic Selection Mux", "Mic 3", "MIC2"},

	/* ACOP */
	{"ACOP", NULL, "ALC Mixer"},
};

static int wm8753_add_widgets(struct snd_soc_codec *codec)
{
	struct snd_soc_dapm_context *dapm = &codec->dapm;

	snd_soc_dapm_new_controls(dapm, wm8753_dapm_widgets,
				  ARRAY_SIZE(wm8753_dapm_widgets));
	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

	return 0;
}

/* PLL divisors */
struct _pll_div {
	u32 div2:1;
	u32 n:4;
	u32 k:24;
};

/* The size in bits of the pll divide multiplied by 10
 * to allow rounding later */
#define FIXED_PLL_SIZE ((1 << 22) * 10)

static void pll_factors(struct _pll_div *pll_div, unsigned int target,
	unsigned int source)
{
	u64 Kpart;
	unsigned int K, Ndiv, Nmod;

	Ndiv = target / source;
	if (Ndiv < 6) {
		source >>= 1;
		pll_div->div2 = 1;
		Ndiv = target / source;
	} else
		pll_div->div2 = 0;

	if ((Ndiv < 6) || (Ndiv > 12))
		printk(KERN_WARNING
			"wm8753: unsupported N = %u\n", Ndiv);

	pll_div->n = Ndiv;
	Nmod = target % source;
	Kpart = FIXED_PLL_SIZE * (long long)Nmod;

	do_div(Kpart, source);

	K = Kpart & 0xFFFFFFFF;

	/* Check if we need to round */
	if ((K % 10) >= 5)
		K += 5;

	/* Move down to proper range now rounding is done */
	K /= 10;

	pll_div->k = K;
}

static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
		int source, unsigned int freq_in, unsigned int freq_out)
{
	u16 reg, enable;
	int offset;
	struct snd_soc_codec *codec = codec_dai->codec;

	if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
		return -ENODEV;

	if (pll_id == WM8753_PLL1) {
		offset = 0;
		enable = 0x10;
		reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef;
	} else {
		offset = 4;
		enable = 0x8;
		reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7;
	}

	if (!freq_in || !freq_out) {
		/* disable PLL  */
		snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
		snd_soc_write(codec, WM8753_CLOCK, reg);
		return 0;
	} else {
		u16 value = 0;
		struct _pll_div pll_div;

		pll_factors(&pll_div, freq_out * 8, freq_in);

		/* set up N and K PLL divisor ratios */
		/* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
		value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
		snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value);

		/* bits 8:0 = PLL_K[17:9] */
		value = (pll_div.k & 0x03fe00) >> 9;
		snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value);

		/* bits 8:0 = PLL_K[8:0] */
		value = pll_div.k & 0x0001ff;
		snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value);

		/* set PLL as input and enable */
		snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
			(pll_div.div2 << 3));
		snd_soc_write(codec, WM8753_CLOCK, reg | enable);
	}
	return 0;
}

struct _coeff_div {
	u32 mclk;
	u32 rate;
	u8 sr:5;
	u8 usb:1;
};

/* codec hifi mclk (after PLL) clock divider coefficients */
static const struct _coeff_div coeff_div[] = {
	/* 8k */
	{12288000, 8000, 0x6, 0x0},
	{11289600, 8000, 0x16, 0x0},
	{18432000, 8000, 0x7, 0x0},
	{16934400, 8000, 0x17, 0x0},
	{12000000, 8000, 0x6, 0x1},

	/* 11.025k */
	{11289600, 11025, 0x18, 0x0},
	{16934400, 11025, 0x19, 0x0},
	{12000000, 11025, 0x19, 0x1},

	/* 16k */
	{12288000, 16000, 0xa, 0x0},
	{18432000, 16000, 0xb, 0x0},
	{12000000, 16000, 0xa, 0x1},

	/* 22.05k */
	{11289600, 22050, 0x1a, 0x0},
	{16934400, 22050, 0x1b, 0x0},
	{12000000, 22050, 0x1b, 0x1},

	/* 32k */
	{12288000, 32000, 0xc, 0x0},
	{18432000, 32000, 0xd, 0x0},
	{12000000, 32000, 0xa, 0x1},

	/* 44.1k */
	{11289600, 44100, 0x10, 0x0},
	{16934400, 44100, 0x11, 0x0},
	{12000000, 44100, 0x11, 0x1},

	/* 48k */
	{12288000, 48000, 0x0, 0x0},
	{18432000, 48000, 0x1, 0x0},
	{12000000, 48000, 0x0, 0x1},

	/* 88.2k */
	{11289600, 88200, 0x1e, 0x0},
	{16934400, 88200, 0x1f, 0x0},
	{12000000, 88200, 0x1f, 0x1},

	/* 96k */
	{12288000, 96000, 0xe, 0x0},
	{18432000, 96000, 0xf, 0x0},
	{12000000, 96000, 0xe, 0x1},
};

static int get_coeff(int mclk, int rate)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
		if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
			return i;
	}
	return -EINVAL;
}

/*
 * Clock after PLL and dividers
 */
static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
		int clk_id, unsigned int freq, int dir)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);

	switch (freq) {
	case 11289600:
	case 12000000:
	case 12288000:
	case 16934400:
	case 18432000:
		if (clk_id == WM8753_MCLK) {
			wm8753->sysclk = freq;
			return 0;
		} else if (clk_id == WM8753_PCMCLK) {
			wm8753->pcmclk = freq;
			return 0;
		}
		break;
	}
	return -EINVAL;
}

/*
 * Set's ADC and Voice DAC format.
 */
static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec,
		unsigned int fmt)
{
	u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec;

	/* interface format */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		voice |= 0x0002;
		break;
	case SND_SOC_DAIFMT_RIGHT_J:
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		voice |= 0x0001;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		voice |= 0x0003;
		break;
	case SND_SOC_DAIFMT_DSP_B:
		voice |= 0x0013;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_write(codec, WM8753_PCM, voice);
	return 0;
}

/*
 * Set PCM DAI bit size and sample rate.
 */
static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *params,
				struct snd_soc_dai *dai)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->codec;
	struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
	u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3;
	u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f;

	/* bit size */
	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
		break;
	case SNDRV_PCM_FORMAT_S20_3LE:
		voice |= 0x0004;
		break;
	case SNDRV_PCM_FORMAT_S24_LE:
		voice |= 0x0008;
		break;
	case SNDRV_PCM_FORMAT_S32_LE:
		voice |= 0x000c;
		break;
	}

	/* sample rate */
	if (params_rate(params) * 384 == wm8753->pcmclk)
		srate |= 0x80;
	snd_soc_write(codec, WM8753_SRATE1, srate);

	snd_soc_write(codec, WM8753_PCM, voice);
	return 0;
}

/*
 * Set's PCM dai fmt and BCLK.
 */
static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec,
		unsigned int fmt)
{
	u16 voice, ioctl;

	voice = snd_soc_read(codec, WM8753_PCM) & 0x011f;
	ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d;

	/* set master/slave audio interface */
	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBS_CFS:
		break;
	case SND_SOC_DAIFMT_CBM_CFM:
		ioctl |= 0x2;
	case SND_SOC_DAIFMT_CBM_CFS:
		voice |= 0x0040;
		break;
	default:
		return -EINVAL;
	}

	/* clock inversion */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_DSP_A:
	case SND_SOC_DAIFMT_DSP_B:
		/* frame inversion not valid for DSP modes */
		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
		case SND_SOC_DAIFMT_NB_NF:
			break;
		case SND_SOC_DAIFMT_IB_NF:
			voice |= 0x0080;
			break;
		default:
			return -EINVAL;
		}
		break;
	case SND_SOC_DAIFMT_I2S:
	case SND_SOC_DAIFMT_RIGHT_J:
	case SND_SOC_DAIFMT_LEFT_J:
		voice &= ~0x0010;
		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
		case SND_SOC_DAIFMT_NB_NF:
			break;
		case SND_SOC_DAIFMT_IB_IF:
			voice |= 0x0090;
			break;
		case SND_SOC_DAIFMT_IB_NF:
			voice |= 0x0080;
			break;
		case SND_SOC_DAIFMT_NB_IF:
			voice |= 0x0010;
			break;
		default:
			return -EINVAL;
		}
		break;
	default:
		return -EINVAL;
	}

	snd_soc_write(codec, WM8753_PCM, voice);
	snd_soc_write(codec, WM8753_IOCTL, ioctl);
	return 0;
}

static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
		int div_id, int div)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	u16 reg;

	switch (div_id) {
	case WM8753_PCMDIV:
		reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f;
		snd_soc_write(codec, WM8753_CLOCK, reg | div);
		break;
	case WM8753_BCLKDIV:
		reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7;
		snd_soc_write(codec, WM8753_SRATE2, reg | div);
		break;
	case WM8753_VXCLKDIV:
		reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f;
		snd_soc_write(codec, WM8753_SRATE2, reg | div);
		break;
	default:
		return -EINVAL;
	}
	return 0;
}

/*
 * Set's HiFi DAC format.
 */
static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec,
		unsigned int fmt)
{
	u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0;

	/* interface format */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		hifi |= 0x0002;
		break;
	case SND_SOC_DAIFMT_RIGHT_J:
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		hifi |= 0x0001;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		hifi |= 0x0003;
		break;
	case SND_SOC_DAIFMT_DSP_B:
		hifi |= 0x0013;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_write(codec, WM8753_HIFI, hifi);
	return 0;
}

/*
 * Set's I2S DAI format.
 */
static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec,
		unsigned int fmt)
{
	u16 ioctl, hifi;

	hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f;
	ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae;

	/* set master/slave audio interface */
	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBS_CFS:
		break;
	case SND_SOC_DAIFMT_CBM_CFM:
		ioctl |= 0x1;
	case SND_SOC_DAIFMT_CBM_CFS:
		hifi |= 0x0040;
		break;
	default:
		return -EINVAL;
	}

	/* clock inversion */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_DSP_A:
	case SND_SOC_DAIFMT_DSP_B:
		/* frame inversion not valid for DSP modes */
		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
		case SND_SOC_DAIFMT_NB_NF:
			break;
		case SND_SOC_DAIFMT_IB_NF:
			hifi |= 0x0080;
			break;
		default:
			return -EINVAL;
		}
		break;
	case SND_SOC_DAIFMT_I2S:
	case SND_SOC_DAIFMT_RIGHT_J:
	case SND_SOC_DAIFMT_LEFT_J:
		hifi &= ~0x0010;
		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
		case SND_SOC_DAIFMT_NB_NF:
			break;
		case SND_SOC_DAIFMT_IB_IF:
			hifi |= 0x0090;
			break;
		case SND_SOC_DAIFMT_IB_NF:
			hifi |= 0x0080;
			break;
		case SND_SOC_DAIFMT_NB_IF:
			hifi |= 0x0010;
			break;
		default:
			return -EINVAL;
		}
		break;
	default:
		return -EINVAL;
	}

	snd_soc_write(codec, WM8753_HIFI, hifi);
	snd_soc_write(codec, WM8753_IOCTL, ioctl);
	return 0;
}

/*
 * Set PCM DAI bit size and sample rate.
 */
static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *params,
				struct snd_soc_dai *dai)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->codec;
	struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
	u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0;
	u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3;
	int coeff;

	/* is digital filter coefficient valid ? */
	coeff = get_coeff(wm8753->sysclk, params_rate(params));
	if (coeff < 0) {
		printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
		return coeff;
	}
	snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
		coeff_div[coeff].usb);

	/* bit size */
	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
		break;
	case SNDRV_PCM_FORMAT_S20_3LE:
		hifi |= 0x0004;
		break;
	case SNDRV_PCM_FORMAT_S24_LE:
		hifi |= 0x0008;
		break;
	case SNDRV_PCM_FORMAT_S32_LE:
		hifi |= 0x000c;
		break;
	}

	snd_soc_write(codec, WM8753_HIFI, hifi);
	return 0;
}

static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec,
		unsigned int fmt)
{
	u16 clock;

	/* set clk source as pcmclk */
	clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
	snd_soc_write(codec, WM8753_CLOCK, clock);

	return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
}

static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec,
		unsigned int fmt)
{
	return wm8753_hdac_set_dai_fmt(codec, fmt);
}

static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec,
		unsigned int fmt)
{
	u16 clock;

	/* set clk source as pcmclk */
	clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
	snd_soc_write(codec, WM8753_CLOCK, clock);

	return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
}

static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec,
		unsigned int fmt)
{
	u16 clock;

	/* set clk source as mclk */
	clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
	snd_soc_write(codec, WM8753_CLOCK, clock | 0x4);

	if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0)
		return -EINVAL;
	return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
}

static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
		unsigned int fmt)
{
	struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
	int ret = 0;

	switch (wm8753->dai_func) {
	case 0:
		ret = wm8753_mode1h_set_dai_fmt(codec, fmt);
		break;
	case 1:
		ret = wm8753_mode2_set_dai_fmt(codec, fmt);
		break;
	case 2:
	case 3:
		ret = wm8753_mode3_4_set_dai_fmt(codec, fmt);
		break;
	default:
		 break;
	}
	if (ret)
		return ret;

	return wm8753_i2s_set_dai_fmt(codec, fmt);
}

static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);

	wm8753->hifi_fmt = fmt;

	return wm8753_hifi_write_dai_fmt(codec, fmt);
};

static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
		unsigned int fmt)
{
	struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
	int ret = 0;

	if (wm8753->dai_func != 0)
		return 0;

	ret = wm8753_mode1v_set_dai_fmt(codec, fmt);
	if (ret)
		return ret;
	ret = wm8753_pcm_set_dai_fmt(codec, fmt);
	if (ret)
		return ret;

	return 0;
};

static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
		unsigned int fmt)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);

	wm8753->voice_fmt = fmt;

	return wm8753_voice_write_dai_fmt(codec, fmt);
};

static int wm8753_mute(struct snd_soc_dai *dai, int mute)
{
	struct snd_soc_codec *codec = dai->codec;
	u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7;
	struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);

	/* the digital mute covers the HiFi and Voice DAC's on the WM8753.
	 * make sure we check if they are not both active when we mute */
	if (mute && wm8753->dai_func == 1) {
		if (!codec->active)
			snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
	} else {
		if (mute)
			snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
		else
			snd_soc_write(codec, WM8753_DAC, mute_reg);
	}

	return 0;
}

static int wm8753_set_bias_level(struct snd_soc_codec *codec,
				 enum snd_soc_bias_level level)
{
	u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e;

	switch (level) {
	case SND_SOC_BIAS_ON:
		/* set vmid to 50k and unmute dac */
		snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
		break;
	case SND_SOC_BIAS_PREPARE:
		/* set vmid to 5k for quick power up */
		snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
		break;
	case SND_SOC_BIAS_STANDBY:
		/* mute dac and set vmid to 500k, enable VREF */
		snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
		break;
	case SND_SOC_BIAS_OFF:
		snd_soc_write(codec, WM8753_PWR1, 0x0001);
		break;
	}
	codec->dapm.bias_level = level;
	return 0;
}

#define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
		SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
		SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)

#define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
	SNDRV_PCM_FMTBIT_S24_LE)

/*
 * The WM8753 supports up to 4 different and mutually exclusive DAI
 * configurations. This gives 2 PCM's available for use, hifi and voice.
 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
 * is connected between the wm8753 and a BT codec or GSM modem.
 *
 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
 * 2. Voice over HIFI DAI - HIFI disabled
 * 3. Voice disabled - HIFI over HIFI
 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
 */
static struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = {
	.hw_params	= wm8753_i2s_hw_params,
	.digital_mute	= wm8753_mute,
	.set_fmt	= wm8753_hifi_set_dai_fmt,
	.set_clkdiv	= wm8753_set_dai_clkdiv,
	.set_pll	= wm8753_set_dai_pll,
	.set_sysclk	= wm8753_set_dai_sysclk,
};

static struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = {
	.hw_params	= wm8753_pcm_hw_params,
	.digital_mute	= wm8753_mute,
	.set_fmt	= wm8753_voice_set_dai_fmt,
	.set_clkdiv	= wm8753_set_dai_clkdiv,
	.set_pll	= wm8753_set_dai_pll,
	.set_sysclk	= wm8753_set_dai_sysclk,
};

static struct snd_soc_dai_driver wm8753_dai[] = {
/* DAI HiFi mode 1 */
{	.name = "wm8753-hifi",
	.playback = {
		.stream_name = "HiFi Playback",
		.channels_min = 1,
		.channels_max = 2,
		.rates = WM8753_RATES,
		.formats = WM8753_FORMATS
	},
	.capture = { /* dummy for fast DAI switching */
		.stream_name = "Capture",
		.channels_min = 1,
		.channels_max = 2,
		.rates = WM8753_RATES,
		.formats = WM8753_FORMATS
	},
	.ops = &wm8753_dai_ops_hifi_mode,
},
/* DAI Voice mode 1 */
{	.name = "wm8753-voice",
	.playback = {
		.stream_name = "Voice Playback",
		.channels_min = 1,
		.channels_max = 1,
		.rates = WM8753_RATES,
		.formats = WM8753_FORMATS,
	},
	.capture = {
		.stream_name = "Capture",
		.channels_min = 1,
		.channels_max = 2,
		.rates = WM8753_RATES,
		.formats = WM8753_FORMATS,
	},
	.ops = &wm8753_dai_ops_voice_mode,
},
};

static void wm8753_work(struct work_struct *work)
{
	struct snd_soc_dapm_context *dapm =
		container_of(work, struct snd_soc_dapm_context,
			     delayed_work.work);
	struct snd_soc_codec *codec = dapm->codec;
	wm8753_set_bias_level(codec, dapm->bias_level);
}

static int wm8753_suspend(struct snd_soc_codec *codec, pm_message_t state)
{
	wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
	return 0;
}

static int wm8753_resume(struct snd_soc_codec *codec)
{
	u16 *reg_cache = codec->reg_cache;
	int i;

	/* Sync reg_cache with the hardware */
	for (i = 1; i < ARRAY_SIZE(wm8753_reg); i++) {
		if (i == WM8753_RESET)
			continue;

		/* No point in writing hardware default values back */
		if (reg_cache[i] == wm8753_reg[i])
			continue;

		snd_soc_write(codec, i, reg_cache[i]);
	}

	wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);

	/* charge wm8753 caps */
	if (codec->dapm.suspend_bias_level == SND_SOC_BIAS_ON) {
		wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
		codec->dapm.bias_level = SND_SOC_BIAS_ON;
		schedule_delayed_work(&codec->dapm.delayed_work,
			msecs_to_jiffies(caps_charge));
	}

	return 0;
}

static int wm8753_probe(struct snd_soc_codec *codec)
{
	struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
	int ret;

	INIT_DELAYED_WORK(&codec->dapm.delayed_work, wm8753_work);

	ret = snd_soc_codec_set_cache_io(codec, 7, 9, wm8753->control_type);
	if (ret < 0) {
		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
		return ret;
	}

	ret = wm8753_reset(codec);
	if (ret < 0) {
		dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
		return ret;
	}

	wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
	wm8753->dai_func = 0;

	/* charge output caps */
	wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
	schedule_delayed_work(&codec->dapm.delayed_work,
			      msecs_to_jiffies(caps_charge));

	/* set the update bits */
	snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8753_LADC, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8753_RADC, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100);
	snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100);

	snd_soc_add_controls(codec, wm8753_snd_controls,
			     ARRAY_SIZE(wm8753_snd_controls));
	wm8753_add_widgets(codec);

	return 0;
}

/* power down chip */
static int wm8753_remove(struct snd_soc_codec *codec)
{
	flush_delayed_work_sync(&codec->dapm.delayed_work);
	wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);

	return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
	.probe =	wm8753_probe,
	.remove =	wm8753_remove,
	.suspend =	wm8753_suspend,
	.resume =	wm8753_resume,
	.set_bias_level = wm8753_set_bias_level,
	.reg_cache_size = ARRAY_SIZE(wm8753_reg),
	.reg_word_size = sizeof(u16),
	.reg_cache_default = wm8753_reg,
};

#if defined(CONFIG_SPI_MASTER)
static int __devinit wm8753_spi_probe(struct spi_device *spi)
{
	struct wm8753_priv *wm8753;
	int ret;

	wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
	if (wm8753 == NULL)
		return -ENOMEM;

	wm8753->control_type = SND_SOC_SPI;
	spi_set_drvdata(spi, wm8753);

	ret = snd_soc_register_codec(&spi->dev,
			&soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
	if (ret < 0)
		kfree(wm8753);
	return ret;
}

static int __devexit wm8753_spi_remove(struct spi_device *spi)
{
	snd_soc_unregister_codec(&spi->dev);
	kfree(spi_get_drvdata(spi));
	return 0;
}

static struct spi_driver wm8753_spi_driver = {
	.driver = {
		.name	= "wm8753-codec",
		.owner	= THIS_MODULE,
	},
	.probe		= wm8753_spi_probe,
	.remove		= __devexit_p(wm8753_spi_remove),
};
#endif /* CONFIG_SPI_MASTER */

#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
static __devinit int wm8753_i2c_probe(struct i2c_client *i2c,
				      const struct i2c_device_id *id)
{
	struct wm8753_priv *wm8753;
	int ret;

	wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
	if (wm8753 == NULL)
		return -ENOMEM;

	i2c_set_clientdata(i2c, wm8753);
	wm8753->control_type = SND_SOC_I2C;

	ret =  snd_soc_register_codec(&i2c->dev,
			&soc_codec_dev_wm8753, wm8753_dai, ARRAY_SIZE(wm8753_dai));
	if (ret < 0)
		kfree(wm8753);
	return ret;
}

static __devexit int wm8753_i2c_remove(struct i2c_client *client)
{
	snd_soc_unregister_codec(&client->dev);
	kfree(i2c_get_clientdata(client));
	return 0;
}

static const struct i2c_device_id wm8753_i2c_id[] = {
	{ "wm8753", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);

static struct i2c_driver wm8753_i2c_driver = {
	.driver = {
		.name = "wm8753-codec",
		.owner = THIS_MODULE,
	},
	.probe =    wm8753_i2c_probe,
	.remove =   __devexit_p(wm8753_i2c_remove),
	.id_table = wm8753_i2c_id,
};
#endif

static int __init wm8753_modinit(void)
{
	int ret = 0;
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
	ret = i2c_add_driver(&wm8753_i2c_driver);
	if (ret != 0) {
		printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
		       ret);
	}
#endif
#if defined(CONFIG_SPI_MASTER)
	ret = spi_register_driver(&wm8753_spi_driver);
	if (ret != 0) {
		printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
		       ret);
	}
#endif
	return ret;
}
module_init(wm8753_modinit);

static void __exit wm8753_exit(void)
{
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
	i2c_del_driver(&wm8753_i2c_driver);
#endif
#if defined(CONFIG_SPI_MASTER)
	spi_unregister_driver(&wm8753_spi_driver);
#endif
}
module_exit(wm8753_exit);

MODULE_DESCRIPTION("ASoC WM8753 driver");
MODULE_AUTHOR("Liam Girdwood");
MODULE_LICENSE("GPL");

Privacy Policy