summaryrefslogtreecommitdiffstats
path: root/sound/soc/codecs/wm8350.c
blob: 714114b50d1808107ceb6c17bd8f461df1e78e0c (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
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
/*
 * wm8350.c -- WM8350 ALSA SoC audio driver
 *
 * Copyright (C) 2007, 2008 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 version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/mfd/wm8350/audio.h>
#include <linux/mfd/wm8350/core.h>
#include <linux/regulator/consumer.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>

#include "wm8350.h"

#define WM8350_OUTn_0dB 0x39

#define WM8350_RAMP_NONE	0
#define WM8350_RAMP_UP		1
#define WM8350_RAMP_DOWN	2

/* We only include the analogue supplies here; the digital supplies
 * need to be available well before this driver can be probed.
 */
static const char *supply_names[] = {
	"AVDD",
	"HPVDD",
};

struct wm8350_output {
	u16 active;
	u16 left_vol;
	u16 right_vol;
	u16 ramp;
	u16 mute;
};

struct wm8350_jack_data {
	struct snd_soc_jack *jack;
	int report;
};

struct wm8350_data {
	struct snd_soc_codec codec;
	struct wm8350_output out1;
	struct wm8350_output out2;
	struct wm8350_jack_data hpl;
	struct wm8350_jack_data hpr;
	struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)];
	int fll_freq_out;
	int fll_freq_in;
};

static unsigned int wm8350_codec_cache_read(struct snd_soc_codec *codec,
					    unsigned int reg)
{
	struct wm8350 *wm8350 = codec->control_data;
	return wm8350->reg_cache[reg];
}

static unsigned int wm8350_codec_read(struct snd_soc_codec *codec,
				      unsigned int reg)
{
	struct wm8350 *wm8350 = codec->control_data;
	return wm8350_reg_read(wm8350, reg);
}

static int wm8350_codec_write(struct snd_soc_codec *codec, unsigned int reg,
			      unsigned int value)
{
	struct wm8350 *wm8350 = codec->control_data;
	return wm8350_reg_write(wm8350, reg, value);
}

/*
 * Ramp OUT1 PGA volume to minimise pops at stream startup and shutdown.
 */
static inline int wm8350_out1_ramp_step(struct snd_soc_codec *codec)
{
	struct wm8350_data *wm8350_data = codec->private_data;
	struct wm8350_output *out1 = &wm8350_data->out1;
	struct wm8350 *wm8350 = codec->control_data;
	int left_complete = 0, right_complete = 0;
	u16 reg, val;

	/* left channel */
	reg = wm8350_reg_read(wm8350, WM8350_LOUT1_VOLUME);
	val = (reg & WM8350_OUT1L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT;

	if (out1->ramp == WM8350_RAMP_UP) {
		/* ramp step up */
		if (val < out1->left_vol) {
			val++;
			reg &= ~WM8350_OUT1L_VOL_MASK;
			wm8350_reg_write(wm8350, WM8350_LOUT1_VOLUME,
					 reg | (val << WM8350_OUT1L_VOL_SHIFT));
		} else
			left_complete = 1;
	} else if (out1->ramp == WM8350_RAMP_DOWN) {
		/* ramp step down */
		if (val > 0) {
			val--;
			reg &= ~WM8350_OUT1L_VOL_MASK;
			wm8350_reg_write(wm8350, WM8350_LOUT1_VOLUME,
					 reg | (val << WM8350_OUT1L_VOL_SHIFT));
		} else
			left_complete = 1;
	} else
		return 1;

	/* right channel */
	reg = wm8350_reg_read(wm8350, WM8350_ROUT1_VOLUME);
	val = (reg & WM8350_OUT1R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT;
	if (out1->ramp == WM8350_RAMP_UP) {
		/* ramp step up */
		if (val < out1->right_vol) {
			val++;
			reg &= ~WM8350_OUT1R_VOL_MASK;
			wm8350_reg_write(wm8350, WM8350_ROUT1_VOLUME,
					 reg | (val << WM8350_OUT1R_VOL_SHIFT));
		} else
			right_complete = 1;
	} else if (out1->ramp == WM8350_RAMP_DOWN) {
		/* ramp step down */
		if (val > 0) {
			val--;
			reg &= ~WM8350_OUT1R_VOL_MASK;
			wm8350_reg_write(wm8350, WM8350_ROUT1_VOLUME,
					 reg | (val << WM8350_OUT1R_VOL_SHIFT));
		} else
			right_complete = 1;
	}

	/* only hit the update bit if either volume has changed this step */
	if (!left_complete || !right_complete)
		wm8350_set_bits(wm8350, WM8350_LOUT1_VOLUME, WM8350_OUT1_VU);

	return left_complete & right_complete;
}

/*
 * Ramp OUT2 PGA volume to minimise pops at stream startup and shutdown.
 */
static inline int wm8350_out2_ramp_step(struct snd_soc_codec *codec)
{
	struct wm8350_data *wm8350_data = codec->private_data;
	struct wm8350_output *out2 = &wm8350_data->out2;
	struct wm8350 *wm8350 = codec->control_data;
	int left_complete = 0, right_complete = 0;
	u16 reg, val;

	/* left channel */
	reg = wm8350_reg_read(wm8350, WM8350_LOUT2_VOLUME);
	val = (reg & WM8350_OUT2L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT;
	if (out2->ramp == WM8350_RAMP_UP) {
		/* ramp step up */
		if (val < out2->left_vol) {
			val++;
			reg &= ~WM8350_OUT2L_VOL_MASK;
			wm8350_reg_write(wm8350, WM8350_LOUT2_VOLUME,
					 reg | (val << WM8350_OUT1L_VOL_SHIFT));
		} else
			left_complete = 1;
	} else if (out2->ramp == WM8350_RAMP_DOWN) {
		/* ramp step down */
		if (val > 0) {
			val--;
			reg &= ~WM8350_OUT2L_VOL_MASK;
			wm8350_reg_write(wm8350, WM8350_LOUT2_VOLUME,
					 reg | (val << WM8350_OUT1L_VOL_SHIFT));
		} else
			left_complete = 1;
	} else
		return 1;

	/* right channel */
	reg = wm8350_reg_read(wm8350, WM8350_ROUT2_VOLUME);
	val = (reg & WM8350_OUT2R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT;
	if (out2->ramp == WM8350_RAMP_UP) {
		/* ramp step up */
		if (val < out2->right_vol) {
			val++;
			reg &= ~WM8350_OUT2R_VOL_MASK;
			wm8350_reg_write(wm8350, WM8350_ROUT2_VOLUME,
					 reg | (val << WM8350_OUT1R_VOL_SHIFT));
		} else
			right_complete = 1;
	} else if (out2->ramp == WM8350_RAMP_DOWN) {
		/* ramp step down */
		if (val > 0) {
			val--;
			reg &= ~WM8350_OUT2R_VOL_MASK;
			wm8350_reg_write(wm8350, WM8350_ROUT2_VOLUME,
					 reg | (val << WM8350_OUT1R_VOL_SHIFT));
		} else
			right_complete = 1;
	}

	/* only hit the update bit if either volume has changed this step */
	if (!left_complete || !right_complete)
		wm8350_set_bits(wm8350, WM8350_LOUT2_VOLUME, WM8350_OUT2_VU);

	return left_complete & right_complete;
}

/*
 * This work ramps both output PGAs at stream start/stop time to
 * minimise pop associated with DAPM power switching.
 * It's best to enable Zero Cross when ramping occurs to minimise any
 * zipper noises.
 */
static void wm8350_pga_work(struct work_struct *work)
{
	struct snd_soc_codec *codec =
	    container_of(work, struct snd_soc_codec, delayed_work.work);
	struct wm8350_data *wm8350_data = codec->private_data;
	struct wm8350_output *out1 = &wm8350_data->out1,
	    *out2 = &wm8350_data->out2;
	int i, out1_complete, out2_complete;

	/* do we need to ramp at all ? */
	if (out1->ramp == WM8350_RAMP_NONE && out2->ramp == WM8350_RAMP_NONE)
		return;

	/* PGA volumes have 6 bits of resolution to ramp */
	for (i = 0; i <= 63; i++) {
		out1_complete = 1, out2_complete = 1;
		if (out1->ramp != WM8350_RAMP_NONE)
			out1_complete = wm8350_out1_ramp_step(codec);
		if (out2->ramp != WM8350_RAMP_NONE)
			out2_complete = wm8350_out2_ramp_step(codec);

		/* ramp finished ? */
		if (out1_complete && out2_complete)
			break;

		/* we need to delay longer on the up ramp */
		if (out1->ramp == WM8350_RAMP_UP ||
		    out2->ramp == WM8350_RAMP_UP) {
			/* delay is longer over 0dB as increases are larger */
			if (i >= WM8350_OUTn_0dB)
				schedule_timeout_interruptible(msecs_to_jiffies
							       (2));
			else
				schedule_timeout_interruptible(msecs_to_jiffies
							       (1));
		} else
			udelay(50);	/* doesn't matter if we delay longer */
	}

	out1->ramp = WM8350_RAMP_NONE;
	out2->ramp = WM8350_RAMP_NONE;
}

/*
 * WM8350 Controls
 */

static int pga_event(struct snd_soc_dapm_widget *w,
		     struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_codec *codec = w->codec;
	struct wm8350_data *wm8350_data = codec->private_data;
	struct wm8350_output *out;

	switch (w->shift) {
	case 0:
	case 1:
		out = &wm8350_data->out1;
		break;
	case 2:
	case 3:
		out = &wm8350_data->out2;
		break;

	default:
		BUG();
		return -1;
	}

	switch (event) {
	case SND_SOC_DAPM_POST_PMU:
		out->ramp = WM8350_RAMP_UP;
		out->active = 1;

		if (!delayed_work_pending(&codec->delayed_work))
			schedule_delayed_work(&codec->delayed_work,
					      msecs_to_jiffies(1));
		break;

	case SND_SOC_DAPM_PRE_PMD:
		out->ramp = WM8350_RAMP_DOWN;
		out->active = 0;

		if (!delayed_work_pending(&codec->delayed_work))
			schedule_delayed_work(&codec->delayed_work,
					      msecs_to_jiffies(1));
		break;
	}

	return 0;
}

static int wm8350_put_volsw_2r_vu(struct snd_kcontrol *kcontrol,
				  struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8350_data *wm8350_priv = codec->private_data;
	struct wm8350_output *out = NULL;
	struct soc_mixer_control *mc =
		(struct soc_mixer_control *)kcontrol->private_value;
	int ret;
	unsigned int reg = mc->reg;
	u16 val;

	/* For OUT1 and OUT2 we shadow the values and only actually write
	 * them out when active in order to ensure the amplifier comes on
	 * as quietly as possible. */
	switch (reg) {
	case WM8350_LOUT1_VOLUME:
		out = &wm8350_priv->out1;
		break;
	case WM8350_LOUT2_VOLUME:
		out = &wm8350_priv->out2;
		break;
	default:
		break;
	}

	if (out) {
		out->left_vol = ucontrol->value.integer.value[0];
		out->right_vol = ucontrol->value.integer.value[1];
		if (!out->active)
			return 1;
	}

	ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
	if (ret < 0)
		return ret;

	/* now hit the volume update bits (always bit 8) */
	val = wm8350_codec_read(codec, reg);
	wm8350_codec_write(codec, reg, val | WM8350_OUT1_VU);
	return 1;
}

static int wm8350_get_volsw_2r(struct snd_kcontrol *kcontrol,
			       struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8350_data *wm8350_priv = codec->private_data;
	struct wm8350_output *out1 = &wm8350_priv->out1;
	struct wm8350_output *out2 = &wm8350_priv->out2;
	struct soc_mixer_control *mc =
		(struct soc_mixer_control *)kcontrol->private_value;
	unsigned int reg = mc->reg;

	/* If these are cached registers use the cache */
	switch (reg) {
	case WM8350_LOUT1_VOLUME:
		ucontrol->value.integer.value[0] = out1->left_vol;
		ucontrol->value.integer.value[1] = out1->right_vol;
		return 0;

	case WM8350_LOUT2_VOLUME:
		ucontrol->value.integer.value[0] = out2->left_vol;
		ucontrol->value.integer.value[1] = out2->right_vol;
		return 0;

	default:
		break;
	}

	return snd_soc_get_volsw_2r(kcontrol, ucontrol);
}

/* double control with volume update */
#define SOC_WM8350_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, \
				xinvert, tlv_array) \
{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
	.access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
		SNDRV_CTL_ELEM_ACCESS_READWRITE | \
		SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
	.tlv.p = (tlv_array), \
	.info = snd_soc_info_volsw_2r, \
	.get = wm8350_get_volsw_2r, .put = wm8350_put_volsw_2r_vu, \
	.private_value = (unsigned long)&(struct soc_mixer_control) \
		{.reg = reg_left, .rreg = reg_right, .shift = xshift, \
		 .rshift = xshift, .max = xmax, .invert = xinvert}, }

static const char *wm8350_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
static const char *wm8350_pol[] = { "Normal", "Inv R", "Inv L", "Inv L & R" };
static const char *wm8350_dacmutem[] = { "Normal", "Soft" };
static const char *wm8350_dacmutes[] = { "Fast", "Slow" };
static const char *wm8350_adcfilter[] = { "None", "High Pass" };
static const char *wm8350_adchp[] = { "44.1kHz", "8kHz", "16kHz", "32kHz" };
static const char *wm8350_lr[] = { "Left", "Right" };

static const struct soc_enum wm8350_enum[] = {
	SOC_ENUM_SINGLE(WM8350_DAC_CONTROL, 4, 4, wm8350_deemp),
	SOC_ENUM_SINGLE(WM8350_DAC_CONTROL, 0, 4, wm8350_pol),
	SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME, 14, 2, wm8350_dacmutem),
	SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME, 13, 2, wm8350_dacmutes),
	SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 15, 2, wm8350_adcfilter),
	SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 8, 4, wm8350_adchp),
	SOC_ENUM_SINGLE(WM8350_ADC_CONTROL, 0, 4, wm8350_pol),
	SOC_ENUM_SINGLE(WM8350_INPUT_MIXER_VOLUME, 15, 2, wm8350_lr),
};

static DECLARE_TLV_DB_LINEAR(pre_amp_tlv, -1200, 3525);
static DECLARE_TLV_DB_LINEAR(out_pga_tlv, -5700, 600);
static DECLARE_TLV_DB_SCALE(dac_pcm_tlv, -7163, 36, 1);
static DECLARE_TLV_DB_SCALE(adc_pcm_tlv, -12700, 50, 1);
static DECLARE_TLV_DB_SCALE(out_mix_tlv, -1500, 300, 1);

static const unsigned int capture_sd_tlv[] = {
	TLV_DB_RANGE_HEAD(2),
	0, 12, TLV_DB_SCALE_ITEM(-3600, 300, 1),
	13, 15, TLV_DB_SCALE_ITEM(0, 0, 0),
};

static const struct snd_kcontrol_new wm8350_snd_controls[] = {
	SOC_ENUM("Playback Deemphasis", wm8350_enum[0]),
	SOC_ENUM("Playback DAC Inversion", wm8350_enum[1]),
	SOC_WM8350_DOUBLE_R_TLV("Playback PCM Volume",
				WM8350_DAC_DIGITAL_VOLUME_L,
				WM8350_DAC_DIGITAL_VOLUME_R,
				0, 255, 0, dac_pcm_tlv),
	SOC_ENUM("Playback PCM Mute Function", wm8350_enum[2]),
	SOC_ENUM("Playback PCM Mute Speed", wm8350_enum[3]),
	SOC_ENUM("Capture PCM Filter", wm8350_enum[4]),
	SOC_ENUM("Capture PCM HP Filter", wm8350_enum[5]),
	SOC_ENUM("Capture ADC Inversion", wm8350_enum[6]),
	SOC_WM8350_DOUBLE_R_TLV("Capture PCM Volume",
				WM8350_ADC_DIGITAL_VOLUME_L,
				WM8350_ADC_DIGITAL_VOLUME_R,
				0, 255, 0, adc_pcm_tlv),
	SOC_DOUBLE_TLV("Capture Sidetone Volume",
		       WM8350_ADC_DIVIDER,
		       8, 4, 15, 1, capture_sd_tlv),
	SOC_WM8350_DOUBLE_R_TLV("Capture Volume",
				WM8350_LEFT_INPUT_VOLUME,
				WM8350_RIGHT_INPUT_VOLUME,
				2, 63, 0, pre_amp_tlv),
	SOC_DOUBLE_R("Capture ZC Switch",
		     WM8350_LEFT_INPUT_VOLUME,
		     WM8350_RIGHT_INPUT_VOLUME, 13, 1, 0),
	SOC_SINGLE_TLV("Left Input Left Sidetone Volume",
		       WM8350_OUTPUT_LEFT_MIXER_VOLUME, 1, 7, 0, out_mix_tlv),
	SOC_SINGLE_TLV("Left Input Right Sidetone Volume",
		       WM8350_OUTPUT_LEFT_MIXER_VOLUME,
		       5, 7, 0, out_mix_tlv),
	SOC_SINGLE_TLV("Left Input Bypass Volume",
		       WM8350_OUTPUT_LEFT_MIXER_VOLUME,
		       9, 7, 0, out_mix_tlv),
	SOC_SINGLE_TLV("Right Input Left Sidetone Volume",
		       WM8350_OUTPUT_RIGHT_MIXER_VOLUME,
		       1, 7, 0, out_mix_tlv),
	SOC_SINGLE_TLV("Right Input Right Sidetone Volume",
		       WM8350_OUTPUT_RIGHT_MIXER_VOLUME,
		       5, 7, 0, out_mix_tlv),
	SOC_SINGLE_TLV("Right Input Bypass Volume",
		       WM8350_OUTPUT_RIGHT_MIXER_VOLUME,
		       13, 7, 0, out_mix_tlv),
	SOC_SINGLE("Left Input Mixer +20dB Switch",
		   WM8350_INPUT_MIXER_VOLUME_L, 0, 1, 0),
	SOC_SINGLE("Right Input Mixer +20dB Switch",
		   WM8350_INPUT_MIXER_VOLUME_R, 0, 1, 0),
	SOC_SINGLE_TLV("Out4 Capture Volume",
		       WM8350_INPUT_MIXER_VOLUME,
		       1, 7, 0, out_mix_tlv),
	SOC_WM8350_DOUBLE_R_TLV("Out1 Playback Volume",
				WM8350_LOUT1_VOLUME,
				WM8350_ROUT1_VOLUME,
				2, 63, 0, out_pga_tlv),
	SOC_DOUBLE_R("Out1 Playback ZC Switch",
		     WM8350_LOUT1_VOLUME,
		     WM8350_ROUT1_VOLUME, 13, 1, 0),
	SOC_WM8350_DOUBLE_R_TLV("Out2 Playback Volume",
				WM8350_LOUT2_VOLUME,
				WM8350_ROUT2_VOLUME,
				2, 63, 0, out_pga_tlv),
	SOC_DOUBLE_R("Out2 Playback ZC Switch", WM8350_LOUT2_VOLUME,
		     WM8350_ROUT2_VOLUME, 13, 1, 0),
	SOC_SINGLE("Out2 Right Invert Switch", WM8350_ROUT2_VOLUME, 10, 1, 0),
	SOC_SINGLE_TLV("Out2 Beep Volume", WM8350_BEEP_VOLUME,
		       5, 7, 0, out_mix_tlv),

	SOC_DOUBLE_R("Out1 Playback Switch",
		     WM8350_LOUT1_VOLUME,
		     WM8350_ROUT1_VOLUME,
		     14, 1, 1),
	SOC_DOUBLE_R("Out2 Playback Switch",
		     WM8350_LOUT2_VOLUME,
		     WM8350_ROUT2_VOLUME,
		     14, 1, 1),
};

/*
 * DAPM Controls
 */

/* Left Playback Mixer */
static const struct snd_kcontrol_new wm8350_left_play_mixer_controls[] = {
	SOC_DAPM_SINGLE("Playback Switch",
			WM8350_LEFT_MIXER_CONTROL, 11, 1, 0),
	SOC_DAPM_SINGLE("Left Bypass Switch",
			WM8350_LEFT_MIXER_CONTROL, 2, 1, 0),
	SOC_DAPM_SINGLE("Right Playback Switch",
			WM8350_LEFT_MIXER_CONTROL, 12, 1, 0),
	SOC_DAPM_SINGLE("Left Sidetone Switch",
			WM8350_LEFT_MIXER_CONTROL, 0, 1, 0),
	SOC_DAPM_SINGLE("Right Sidetone Switch",
			WM8350_LEFT_MIXER_CONTROL, 1, 1, 0),
};

/* Right Playback Mixer */
static const struct snd_kcontrol_new wm8350_right_play_mixer_controls[] = {
	SOC_DAPM_SINGLE("Playback Switch",
			WM8350_RIGHT_MIXER_CONTROL, 12, 1, 0),
	SOC_DAPM_SINGLE("Right Bypass Switch",
			WM8350_RIGHT_MIXER_CONTROL, 3, 1, 0),
	SOC_DAPM_SINGLE("Left Playback Switch",
			WM8350_RIGHT_MIXER_CONTROL, 11, 1, 0),
	SOC_DAPM_SINGLE("Left Sidetone Switch",
			WM8350_RIGHT_MIXER_CONTROL, 0, 1, 0),
	SOC_DAPM_SINGLE("Right Sidetone Switch",
			WM8350_RIGHT_MIXER_CONTROL, 1, 1, 0),
};

/* Out4 Mixer */
static const struct snd_kcontrol_new wm8350_out4_mixer_controls[] = {
	SOC_DAPM_SINGLE("Right Playback Switch",
			WM8350_OUT4_MIXER_CONTROL, 12, 1, 0),
	SOC_DAPM_SINGLE("Left Playback Switch",
			WM8350_OUT4_MIXER_CONTROL, 11, 1, 0),
	SOC_DAPM_SINGLE("Right Capture Switch",
			WM8350_OUT4_MIXER_CONTROL, 9, 1, 0),
	SOC_DAPM_SINGLE("Out3 Playback Switch",
			WM8350_OUT4_MIXER_CONTROL, 2, 1, 0),
	SOC_DAPM_SINGLE("Right Mixer Switch",
			WM8350_OUT4_MIXER_CONTROL, 1, 1, 0),
	SOC_DAPM_SINGLE("Left Mixer Switch",
			WM8350_OUT4_MIXER_CONTROL, 0, 1, 0),
};

/* Out3 Mixer */
static const struct snd_kcontrol_new wm8350_out3_mixer_controls[] = {
	SOC_DAPM_SINGLE("Left Playback Switch",
			WM8350_OUT3_MIXER_CONTROL, 11, 1, 0),
	SOC_DAPM_SINGLE("Left Capture Switch",
			WM8350_OUT3_MIXER_CONTROL, 8, 1, 0),
	SOC_DAPM_SINGLE("Out4 Playback Switch",
			WM8350_OUT3_MIXER_CONTROL, 3, 1, 0),
	SOC_DAPM_SINGLE("Left Mixer Switch",
			WM8350_OUT3_MIXER_CONTROL, 0, 1, 0),
};

/* Left Input Mixer */
static const struct snd_kcontrol_new wm8350_left_capt_mixer_controls[] = {
	SOC_DAPM_SINGLE_TLV("L2 Capture Volume",
			    WM8350_INPUT_MIXER_VOLUME_L, 1, 7, 0, out_mix_tlv),
	SOC_DAPM_SINGLE_TLV("L3 Capture Volume",
			    WM8350_INPUT_MIXER_VOLUME_L, 9, 7, 0, out_mix_tlv),
	SOC_DAPM_SINGLE("PGA Capture Switch",
			WM8350_LEFT_INPUT_VOLUME, 14, 1, 1),
};

/* Right Input Mixer */
static const struct snd_kcontrol_new wm8350_right_capt_mixer_controls[] = {
	SOC_DAPM_SINGLE_TLV("L2 Capture Volume",
			    WM8350_INPUT_MIXER_VOLUME_R, 5, 7, 0, out_mix_tlv),
	SOC_DAPM_SINGLE_TLV("L3 Capture Volume",
			    WM8350_INPUT_MIXER_VOLUME_R, 13, 7, 0, out_mix_tlv),
	SOC_DAPM_SINGLE("PGA Capture Switch",
			WM8350_RIGHT_INPUT_VOLUME, 14, 1, 1),
};

/* Left Mic Mixer */
static const struct snd_kcontrol_new wm8350_left_mic_mixer_controls[] = {
	SOC_DAPM_SINGLE("INN Capture Switch", WM8350_INPUT_CONTROL, 1, 1, 0),
	SOC_DAPM_SINGLE("INP Capture Switch", WM8350_INPUT_CONTROL, 0, 1, 0),
	SOC_DAPM_SINGLE("IN2 Capture Switch", WM8350_INPUT_CONTROL, 2, 1, 0),
};

/* Right Mic Mixer */
static const struct snd_kcontrol_new wm8350_right_mic_mixer_controls[] = {
	SOC_DAPM_SINGLE("INN Capture Switch", WM8350_INPUT_CONTROL, 9, 1, 0),
	SOC_DAPM_SINGLE("INP Capture Switch", WM8350_INPUT_CONTROL, 8, 1, 0),
	SOC_DAPM_SINGLE("IN2 Capture Switch", WM8350_INPUT_CONTROL, 10, 1, 0),
};

/* Beep Switch */
static const struct snd_kcontrol_new wm8350_beep_switch_controls =
SOC_DAPM_SINGLE("Switch", WM8350_BEEP_VOLUME, 15, 1, 1);

/* Out4 Capture Mux */
static const struct snd_kcontrol_new wm8350_out4_capture_controls =
SOC_DAPM_ENUM("Route", wm8350_enum[7]);

static const struct snd_soc_dapm_widget wm8350_dapm_widgets[] = {

	SND_SOC_DAPM_PGA("IN3R PGA", WM8350_POWER_MGMT_2, 11, 0, NULL, 0),
	SND_SOC_DAPM_PGA("IN3L PGA", WM8350_POWER_MGMT_2, 10, 0, NULL, 0),
	SND_SOC_DAPM_PGA_E("Right Out2 PGA", WM8350_POWER_MGMT_3, 3, 0, NULL,
			   0, pga_event,
			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
	SND_SOC_DAPM_PGA_E("Left Out2 PGA", WM8350_POWER_MGMT_3, 2, 0, NULL, 0,
			   pga_event,
			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
	SND_SOC_DAPM_PGA_E("Right Out1 PGA", WM8350_POWER_MGMT_3, 1, 0, NULL,
			   0, pga_event,
			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
	SND_SOC_DAPM_PGA_E("Left Out1 PGA", WM8350_POWER_MGMT_3, 0, 0, NULL, 0,
			   pga_event,
			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),

	SND_SOC_DAPM_MIXER("Right Capture Mixer", WM8350_POWER_MGMT_2,
			   7, 0, &wm8350_right_capt_mixer_controls[0],
			   ARRAY_SIZE(wm8350_right_capt_mixer_controls)),

	SND_SOC_DAPM_MIXER("Left Capture Mixer", WM8350_POWER_MGMT_2,
			   6, 0, &wm8350_left_capt_mixer_controls[0],
			   ARRAY_SIZE(wm8350_left_capt_mixer_controls)),

	SND_SOC_DAPM_MIXER("Out4 Mixer", WM8350_POWER_MGMT_2, 5, 0,
			   &wm8350_out4_mixer_controls[0],
			   ARRAY_SIZE(wm8350_out4_mixer_controls)),

	SND_SOC_DAPM_MIXER("Out3 Mixer", WM8350_POWER_MGMT_2, 4, 0,
			   &wm8350_out3_mixer_controls[0],
			   ARRAY_SIZE(wm8350_out3_mixer_controls)),

	SND_SOC_DAPM_MIXER("Right Playback Mixer", WM8350_POWER_MGMT_2, 1, 0,
			   &wm8350_right_play_mixer_controls[0],
			   ARRAY_SIZE(wm8350_right_play_mixer_controls)),

	SND_SOC_DAPM_MIXER("Left Playback Mixer", WM8350_POWER_MGMT_2, 0, 0,
			   &wm8350_left_play_mixer_controls[0],
			   ARRAY_SIZE(wm8350_left_play_mixer_controls)),

	SND_SOC_DAPM_MIXER("Left Mic Mixer", WM8350_POWER_MGMT_2, 8, 0,
			   &wm8350_left_mic_mixer_controls[0],
			   ARRAY_SIZE(wm8350_left_mic_mixer_controls)),

	SND_SOC_DAPM_MIXER("Right Mic Mixer", WM8350_POWER_MGMT_2, 9, 0,
			   &wm8350_right_mic_mixer_controls[0],
			   ARRAY_SIZE(wm8350_right_mic_mixer_controls)),

	/* virtual mixer for Beep and Out2R */
	SND_SOC_DAPM_MIXER("Out2 Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),

	SND_SOC_DAPM_SWITCH("Beep", WM8350_POWER_MGMT_3, 7, 0,
			    &wm8350_beep_switch_controls),

	SND_SOC_DAPM_ADC("Right ADC", "Right Capture",
			 WM8350_POWER_MGMT_4, 3, 0),
	SND_SOC_DAPM_ADC("Left ADC", "Left Capture",
			 WM8350_POWER_MGMT_4, 2, 0),
	SND_SOC_DAPM_DAC("Right DAC", "Right Playback",
			 WM8350_POWER_MGMT_4, 5, 0),
	SND_SOC_DAPM_DAC("Left DAC", "Left Playback",
			 WM8350_POWER_MGMT_4, 4, 0),

	SND_SOC_DAPM_MICBIAS("Mic Bias", WM8350_POWER_MGMT_1, 4, 0),

	SND_SOC_DAPM_MUX("Out4 Capture Channel", SND_SOC_NOPM, 0, 0,
			 &wm8350_out4_capture_controls),

	SND_SOC_DAPM_OUTPUT("OUT1R"),
	SND_SOC_DAPM_OUTPUT("OUT1L"),
	SND_SOC_DAPM_OUTPUT("OUT2R"),
	SND_SOC_DAPM_OUTPUT("OUT2L"),
	SND_SOC_DAPM_OUTPUT("OUT3"),
	SND_SOC_DAPM_OUTPUT("OUT4"),

	SND_SOC_DAPM_INPUT("IN1RN"),
	SND_SOC_DAPM_INPUT("IN1RP"),
	SND_SOC_DAPM_INPUT("IN2R"),
	SND_SOC_DAPM_INPUT("IN1LP"),
	SND_SOC_DAPM_INPUT("IN1LN"),
	SND_SOC_DAPM_INPUT("IN2L"),
	SND_SOC_DAPM_INPUT("IN3R"),
	SND_SOC_DAPM_INPUT("IN3L"),
};

static const struct snd_soc_dapm_route audio_map[] = {

	/* left playback mixer */
	{"Left Playback Mixer", "Playback Switch", "Left DAC"},
	{"Left Playback Mixer", "Left Bypass Switch", "IN3L PGA"},
	{"Left Playback Mixer", "Right Playback Switch", "Right DAC"},
	{"Left Playback Mixer", "Left Sidetone Switch", "Left Mic Mixer"},
	{"Left Playback Mixer", "Right Sidetone Switch", "Right Mic Mixer"},

	/* right playback mixer */
	{"Right Playback Mixer", "Playback Switch", "Right DAC"},
	{"Right Playback Mixer", "Right Bypass Switch", "IN3R PGA"},
	{"Right Playback Mixer", "Left Playback Switch", "Left DAC"},
	{"Right Playback Mixer", "Left Sidetone Switch", "Left Mic Mixer"},
	{"Right Playback Mixer", "Right Sidetone Switch", "Right Mic Mixer"},

	/* out4 playback mixer */
	{"Out4 Mixer", "Right Playback Switch", "Right DAC"},
	{"Out4 Mixer", "Left Playback Switch", "Left DAC"},
	{"Out4 Mixer", "Right Capture Switch", "Right Capture Mixer"},
	{"Out4 Mixer", "Out3 Playback Switch", "Out3 Mixer"},
	{"Out4 Mixer", "Right Mixer Switch", "Right Playback Mixer"},
	{"Out4 Mixer", "Left Mixer Switch", "Left Playback Mixer"},
	{"OUT4", NULL, "Out4 Mixer"},

	/* out3 playback mixer */
	{"Out3 Mixer", "Left Playback Switch", "Left DAC"},
	{"Out3 Mixer", "Left Capture Switch", "Left Capture Mixer"},
	{"Out3 Mixer", "Left Mixer Switch", "Left Playback Mixer"},
	{"Out3 Mixer", "Out4 Playback Switch", "Out4 Mixer"},
	{"OUT3", NULL, "Out3 Mixer"},

	/* out2 */
	{"Right Out2 PGA", NULL, "Right Playback Mixer"},
	{"Left Out2 PGA", NULL, "Left Playback Mixer"},
	{"OUT2L", NULL, "Left Out2 PGA"},
	{"OUT2R", NULL, "Right Out2 PGA"},

	/* out1 */
	{"Right Out1 PGA", NULL, "Right Playback Mixer"},
	{"Left Out1 PGA", NULL, "Left Playback Mixer"},
	{"OUT1L", NULL, "Left Out1 PGA"},
	{"OUT1R", NULL, "Right Out1 PGA"},

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

	/* Left capture mixer */
	{"Left Capture Mixer", "L2 Capture Volume", "IN2L"},
	{"Left Capture Mixer", "L3 Capture Volume", "IN3L PGA"},
	{"Left Capture Mixer", "PGA Capture Switch", "Left Mic Mixer"},
	{"Left Capture Mixer", NULL, "Out4 Capture Channel"},

	/* Right capture mixer */
	{"Right Capture Mixer", "L2 Capture Volume", "IN2R"},
	{"Right Capture Mixer", "L3 Capture Volume", "IN3R PGA"},
	{"Right Capture Mixer", "PGA Capture Switch", "Right Mic Mixer"},
	{"Right Capture Mixer", NULL, "Out4 Capture Channel"},

	/* L3 Inputs */
	{"IN3L PGA", NULL, "IN3L"},
	{"IN3R PGA", NULL, "IN3R"},

	/* Left Mic mixer */
	{"Left Mic Mixer", "INN Capture Switch", "IN1LN"},
	{"Left Mic Mixer", "INP Capture Switch", "IN1LP"},
	{"Left Mic Mixer", "IN2 Capture Switch", "IN2L"},

	/* Right Mic mixer */
	{"Right Mic Mixer", "INN Capture Switch", "IN1RN"},
	{"Right Mic Mixer", "INP Capture Switch", "IN1RP"},
	{"Right Mic Mixer", "IN2 Capture Switch", "IN2R"},

	/* out 4 capture */
	{"Out4 Capture Channel", NULL, "Out4 Mixer"},

	/* Beep */
	{"Beep", NULL, "IN3R PGA"},
};

static int wm8350_add_widgets(struct snd_soc_codec *codec)
{
	int ret;

	ret = snd_soc_dapm_new_controls(codec,
					wm8350_dapm_widgets,
					ARRAY_SIZE(wm8350_dapm_widgets));
	if (ret != 0) {
		dev_err(codec->dev, "dapm control register failed\n");
		return ret;
	}

	/* set up audio paths */
	ret = snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
	if (ret != 0) {
		dev_err(codec->dev, "DAPM route register failed\n");
		return ret;
	}

	return snd_soc_dapm_new_widgets(codec);
}

static int wm8350_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 wm8350 *wm8350 = codec->control_data;
	u16 fll_4;

	switch (clk_id) {
	case WM8350_MCLK_SEL_MCLK:
		wm8350_clear_bits(wm8350, WM8350_CLOCK_CONTROL_1,
				  WM8350_MCLK_SEL);
		break;
	case WM8350_MCLK_SEL_PLL_MCLK:
	case WM8350_MCLK_SEL_PLL_DAC:
	case WM8350_MCLK_SEL_PLL_ADC:
	case WM8350_MCLK_SEL_PLL_32K:
		wm8350_set_bits(wm8350, WM8350_CLOCK_CONTROL_1,
				WM8350_MCLK_SEL);
		fll_4 = wm8350_codec_read(codec, WM8350_FLL_CONTROL_4) &
		    ~WM8350_FLL_CLK_SRC_MASK;
		wm8350_codec_write(codec, WM8350_FLL_CONTROL_4, fll_4 | clk_id);
		break;
	}

	/* MCLK direction */
	if (dir == WM8350_MCLK_DIR_OUT)
		wm8350_set_bits(wm8350, WM8350_CLOCK_CONTROL_2,
				WM8350_MCLK_DIR);
	else
		wm8350_clear_bits(wm8350, WM8350_CLOCK_CONTROL_2,
				  WM8350_MCLK_DIR);

	return 0;
}

static int wm8350_set_clkdiv(struct snd_soc_dai *codec_dai, int div_id, int div)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	u16 val;

	switch (div_id) {
	case WM8350_ADC_CLKDIV:
		val = wm8350_codec_read(codec, WM8350_ADC_DIVIDER) &
		    ~WM8350_ADC_CLKDIV_MASK;
		wm8350_codec_write(codec, WM8350_ADC_DIVIDER, val | div);
		break;
	case WM8350_DAC_CLKDIV:
		val = wm8350_codec_read(codec, WM8350_DAC_CLOCK_CONTROL) &
		    ~WM8350_DAC_CLKDIV_MASK;
		wm8350_codec_write(codec, WM8350_DAC_CLOCK_CONTROL, val | div);
		break;
	case WM8350_BCLK_CLKDIV:
		val = wm8350_codec_read(codec, WM8350_CLOCK_CONTROL_1) &
		    ~WM8350_BCLK_DIV_MASK;
		wm8350_codec_write(codec, WM8350_CLOCK_CONTROL_1, val | div);
		break;
	case WM8350_OPCLK_CLKDIV:
		val = wm8350_codec_read(codec, WM8350_CLOCK_CONTROL_1) &
		    ~WM8350_OPCLK_DIV_MASK;
		wm8350_codec_write(codec, WM8350_CLOCK_CONTROL_1, val | div);
		break;
	case WM8350_SYS_CLKDIV:
		val = wm8350_codec_read(codec, WM8350_CLOCK_CONTROL_1) &
		    ~WM8350_MCLK_DIV_MASK;
		wm8350_codec_write(codec, WM8350_CLOCK_CONTROL_1, val | div);
		break;
	case WM8350_DACLR_CLKDIV:
		val = wm8350_codec_read(codec, WM8350_DAC_LR_RATE) &
		    ~WM8350_DACLRC_RATE_MASK;
		wm8350_codec_write(codec, WM8350_DAC_LR_RATE, val | div);
		break;
	case WM8350_ADCLR_CLKDIV:
		val = wm8350_codec_read(codec, WM8350_ADC_LR_RATE) &
		    ~WM8350_ADCLRC_RATE_MASK;
		wm8350_codec_write(codec, WM8350_ADC_LR_RATE, val | div);
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static int wm8350_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	u16 iface = wm8350_codec_read(codec, WM8350_AI_FORMATING) &
	    ~(WM8350_AIF_BCLK_INV | WM8350_AIF_LRCLK_INV | WM8350_AIF_FMT_MASK);
	u16 master = wm8350_codec_read(codec, WM8350_AI_DAC_CONTROL) &
	    ~WM8350_BCLK_MSTR;
	u16 dac_lrc = wm8350_codec_read(codec, WM8350_DAC_LR_RATE) &
	    ~WM8350_DACLRC_ENA;
	u16 adc_lrc = wm8350_codec_read(codec, WM8350_ADC_LR_RATE) &
	    ~WM8350_ADCLRC_ENA;

	/* set master/slave audio interface */
	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBM_CFM:
		master |= WM8350_BCLK_MSTR;
		dac_lrc |= WM8350_DACLRC_ENA;
		adc_lrc |= WM8350_ADCLRC_ENA;
		break;
	case SND_SOC_DAIFMT_CBS_CFS:
		break;
	default:
		return -EINVAL;
	}

	/* interface format */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		iface |= 0x2 << 8;
		break;
	case SND_SOC_DAIFMT_RIGHT_J:
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		iface |= 0x1 << 8;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		iface |= 0x3 << 8;
		break;
	case SND_SOC_DAIFMT_DSP_B:
		iface |= 0x3 << 8;	/* lg not sure which mode */
		break;
	default:
		return -EINVAL;
	}

	/* clock inversion */
	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_NB_NF:
		break;
	case SND_SOC_DAIFMT_IB_IF:
		iface |= WM8350_AIF_LRCLK_INV | WM8350_AIF_BCLK_INV;
		break;
	case SND_SOC_DAIFMT_IB_NF:
		iface |= WM8350_AIF_BCLK_INV;
		break;
	case SND_SOC_DAIFMT_NB_IF:
		iface |= WM8350_AIF_LRCLK_INV;
		break;
	default:
		return -EINVAL;
	}

	wm8350_codec_write(codec, WM8350_AI_FORMATING, iface);
	wm8350_codec_write(codec, WM8350_AI_DAC_CONTROL, master);
	wm8350_codec_write(codec, WM8350_DAC_LR_RATE, dac_lrc);
	wm8350_codec_write(codec, WM8350_ADC_LR_RATE, adc_lrc);
	return 0;
}

static int wm8350_pcm_trigger(struct snd_pcm_substream *substream,
			      int cmd, struct snd_soc_dai *codec_dai)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	int master = wm8350_codec_cache_read(codec, WM8350_AI_DAC_CONTROL) &
	    WM8350_BCLK_MSTR;
	int enabled = 0;

	/* Check that the DACs or ADCs are enabled since they are
	 * required for LRC in master mode. The DACs or ADCs need a
	 * valid audio path i.e. pin -> ADC or DAC -> pin before
	 * the LRC will be enabled in master mode. */
	if (!master || cmd != SNDRV_PCM_TRIGGER_START)
		return 0;

	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
		enabled = wm8350_codec_cache_read(codec, WM8350_POWER_MGMT_4) &
		    (WM8350_ADCR_ENA | WM8350_ADCL_ENA);
	} else {
		enabled = wm8350_codec_cache_read(codec, WM8350_POWER_MGMT_4) &
		    (WM8350_DACR_ENA | WM8350_DACL_ENA);
	}

	if (!enabled) {
		dev_err(codec->dev,
		       "%s: invalid audio path - no clocks available\n",
		       __func__);
		return -EINVAL;
	}
	return 0;
}

static int wm8350_pcm_hw_params(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *params,
				struct snd_soc_dai *codec_dai)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct wm8350 *wm8350 = codec->control_data;
	u16 iface = wm8350_codec_read(codec, WM8350_AI_FORMATING) &
	    ~WM8350_AIF_WL_MASK;

	/* bit size */
	switch (params_format(params)) {
	case SNDRV_PCM_FORMAT_S16_LE:
		break;
	case SNDRV_PCM_FORMAT_S20_3LE:
		iface |= 0x1 << 10;
		break;
	case SNDRV_PCM_FORMAT_S24_LE:
		iface |= 0x2 << 10;
		break;
	case SNDRV_PCM_FORMAT_S32_LE:
		iface |= 0x3 << 10;
		break;
	}

	wm8350_codec_write(codec, WM8350_AI_FORMATING, iface);

	/* The sloping stopband filter is recommended for use with
	 * lower sample rates to improve performance.
	 */
	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
		if (params_rate(params) < 24000)
			wm8350_set_bits(wm8350, WM8350_DAC_MUTE_VOLUME,
					WM8350_DAC_SB_FILT);
		else
			wm8350_clear_bits(wm8350, WM8350_DAC_MUTE_VOLUME,
					  WM8350_DAC_SB_FILT);
	}

	return 0;
}

static int wm8350_mute(struct snd_soc_dai *dai, int mute)
{
	struct snd_soc_codec *codec = dai->codec;
	struct wm8350 *wm8350 = codec->control_data;

	if (mute)
		wm8350_set_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA);
	else
		wm8350_clear_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA);
	return 0;
}

/* FLL divisors */
struct _fll_div {
	int div;		/* FLL_OUTDIV */
	int n;
	int k;
	int ratio;		/* FLL_FRATIO */
};

/* The size in bits of the fll divide multiplied by 10
 * to allow rounding later */
#define FIXED_FLL_SIZE ((1 << 16) * 10)

static inline int fll_factors(struct _fll_div *fll_div, unsigned int input,
			      unsigned int output)
{
	u64 Kpart;
	unsigned int t1, t2, K, Nmod;

	if (output >= 2815250 && output <= 3125000)
		fll_div->div = 0x4;
	else if (output >= 5625000 && output <= 6250000)
		fll_div->div = 0x3;
	else if (output >= 11250000 && output <= 12500000)
		fll_div->div = 0x2;
	else if (output >= 22500000 && output <= 25000000)
		fll_div->div = 0x1;
	else {
		printk(KERN_ERR "wm8350: fll freq %d out of range\n", output);
		return -EINVAL;
	}

	if (input > 48000)
		fll_div->ratio = 1;
	else
		fll_div->ratio = 8;

	t1 = output * (1 << (fll_div->div + 1));
	t2 = input * fll_div->ratio;

	fll_div->n = t1 / t2;
	Nmod = t1 % t2;

	if (Nmod) {
		Kpart = FIXED_FLL_SIZE * (long long)Nmod;
		do_div(Kpart, t2);
		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;
		fll_div->k = K;
	} else
		fll_div->k = 0;

	return 0;
}

static int wm8350_set_fll(struct snd_soc_dai *codec_dai,
			  int pll_id, int source, unsigned int freq_in,
			  unsigned int freq_out)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct wm8350 *wm8350 = codec->control_data;
	struct wm8350_data *priv = codec->private_data;
	struct _fll_div fll_div;
	int ret = 0;
	u16 fll_1, fll_4;

	if (freq_in == priv->fll_freq_in && freq_out == priv->fll_freq_out)
		return 0;

	/* power down FLL - we need to do this for reconfiguration */
	wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4,
			  WM8350_FLL_ENA | WM8350_FLL_OSC_ENA);

	if (freq_out == 0 || freq_in == 0)
		return ret;

	ret = fll_factors(&fll_div, freq_in, freq_out);
	if (ret < 0)
		return ret;
	dev_dbg(wm8350->dev,
		"FLL in %u FLL out %u N 0x%x K 0x%x div %d ratio %d",
		freq_in, freq_out, fll_div.n, fll_div.k, fll_div.div,
		fll_div.ratio);

	/* set up N.K & dividers */
	fll_1 = wm8350_codec_read(codec, WM8350_FLL_CONTROL_1) &
	    ~(WM8350_FLL_OUTDIV_MASK | WM8350_FLL_RSP_RATE_MASK | 0xc000);
	wm8350_codec_write(codec, WM8350_FLL_CONTROL_1,
			   fll_1 | (fll_div.div << 8) | 0x50);
	wm8350_codec_write(codec, WM8350_FLL_CONTROL_2,
			   (fll_div.ratio << 11) | (fll_div.
						    n & WM8350_FLL_N_MASK));
	wm8350_codec_write(codec, WM8350_FLL_CONTROL_3, fll_div.k);
	fll_4 = wm8350_codec_read(codec, WM8350_FLL_CONTROL_4) &
	    ~(WM8350_FLL_FRAC | WM8350_FLL_SLOW_LOCK_REF);
	wm8350_codec_write(codec, WM8350_FLL_CONTROL_4,
			   fll_4 | (fll_div.k ? WM8350_FLL_FRAC : 0) |
			   (fll_div.ratio == 8 ? WM8350_FLL_SLOW_LOCK_REF : 0));

	/* power FLL on */
	wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_OSC_ENA);
	wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_FLL_ENA);

	priv->fll_freq_out = freq_out;
	priv->fll_freq_in = freq_in;

	return 0;
}

static int wm8350_set_bias_level(struct snd_soc_codec *codec,
				 enum snd_soc_bias_level level)
{
	struct wm8350 *wm8350 = codec->control_data;
	struct wm8350_data *priv = codec->private_data;
	struct wm8350_audio_platform_data *platform =
		wm8350->codec.platform_data;
	u16 pm1;
	int ret;

	switch (level) {
	case SND_SOC_BIAS_ON:
		pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
		    ~(WM8350_VMID_MASK | WM8350_CODEC_ISEL_MASK);
		wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
				 pm1 | WM8350_VMID_50K |
				 platform->codec_current_on << 14);
		break;

	case SND_SOC_BIAS_PREPARE:
		pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1);
		pm1 &= ~WM8350_VMID_MASK;
		wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
				 pm1 | WM8350_VMID_50K);
		break;

	case SND_SOC_BIAS_STANDBY:
		if (codec->bias_level == SND_SOC_BIAS_OFF) {
			ret = regulator_bulk_enable(ARRAY_SIZE(priv->supplies),
						    priv->supplies);
			if (ret != 0)
				return ret;

			/* Enable the system clock */
			wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4,
					WM8350_SYSCLK_ENA);

			/* mute DAC & outputs */
			wm8350_set_bits(wm8350, WM8350_DAC_MUTE,
					WM8350_DAC_MUTE_ENA);

			/* discharge cap memory */
			wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL,
					 platform->dis_out1 |
					 (platform->dis_out2 << 2) |
					 (platform->dis_out3 << 4) |
					 (platform->dis_out4 << 6));

			/* wait for discharge */
			schedule_timeout_interruptible(msecs_to_jiffies
						       (platform->
							cap_discharge_msecs));

			/* enable antipop */
			wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL,
					 (platform->vmid_s_curve << 8));

			/* ramp up vmid */
			wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
					 (platform->
					  codec_current_charge << 14) |
					 WM8350_VMID_5K | WM8350_VMIDEN |
					 WM8350_VBUFEN);

			/* wait for vmid */
			schedule_timeout_interruptible(msecs_to_jiffies
						       (platform->
							vmid_charge_msecs));

			/* turn on vmid 300k  */
			pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
			    ~(WM8350_VMID_MASK | WM8350_CODEC_ISEL_MASK);
			pm1 |= WM8350_VMID_300K |
				(platform->codec_current_standby << 14);
			wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
					 pm1);


			/* enable analogue bias */
			pm1 |= WM8350_BIASEN;
			wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1);

			/* disable antipop */
			wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL, 0);

		} else {
			/* turn on vmid 300k and reduce current */
			pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
			    ~(WM8350_VMID_MASK | WM8350_CODEC_ISEL_MASK);
			wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
					 pm1 | WM8350_VMID_300K |
					 (platform->
					  codec_current_standby << 14));

		}
		break;

	case SND_SOC_BIAS_OFF:

		/* mute DAC & enable outputs */
		wm8350_set_bits(wm8350, WM8350_DAC_MUTE, WM8350_DAC_MUTE_ENA);

		wm8350_set_bits(wm8350, WM8350_POWER_MGMT_3,
				WM8350_OUT1L_ENA | WM8350_OUT1R_ENA |
				WM8350_OUT2L_ENA | WM8350_OUT2R_ENA);

		/* enable anti pop S curve */
		wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL,
				 (platform->vmid_s_curve << 8));

		/* turn off vmid  */
		pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
		    ~WM8350_VMIDEN;
		wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1);

		/* wait */
		schedule_timeout_interruptible(msecs_to_jiffies
					       (platform->
						vmid_discharge_msecs));

		wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL,
				 (platform->vmid_s_curve << 8) |
				 platform->dis_out1 |
				 (platform->dis_out2 << 2) |
				 (platform->dis_out3 << 4) |
				 (platform->dis_out4 << 6));

		/* turn off VBuf and drain */
		pm1 = wm8350_reg_read(wm8350, WM8350_POWER_MGMT_1) &
		    ~(WM8350_VBUFEN | WM8350_VMID_MASK);
		wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1,
				 pm1 | WM8350_OUTPUT_DRAIN_EN);

		/* wait */
		schedule_timeout_interruptible(msecs_to_jiffies
					       (platform->drain_msecs));

		pm1 &= ~WM8350_BIASEN;
		wm8350_reg_write(wm8350, WM8350_POWER_MGMT_1, pm1);

		/* disable anti-pop */
		wm8350_reg_write(wm8350, WM8350_ANTI_POP_CONTROL, 0);

		wm8350_clear_bits(wm8350, WM8350_LOUT1_VOLUME,
				  WM8350_OUT1L_ENA);
		wm8350_clear_bits(wm8350, WM8350_ROUT1_VOLUME,
				  WM8350_OUT1R_ENA);
		wm8350_clear_bits(wm8350, WM8350_LOUT2_VOLUME,
				  WM8350_OUT2L_ENA);
		wm8350_clear_bits(wm8350, WM8350_ROUT2_VOLUME,
				  WM8350_OUT2R_ENA);

		/* disable clock gen */
		wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4,
				  WM8350_SYSCLK_ENA);

		regulator_bulk_disable(ARRAY_SIZE(priv->supplies),
				       priv->supplies);
		break;
	}
	codec->bias_level = level;
	return 0;
}

static int wm8350_suspend(struct platform_device *pdev, pm_message_t state)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec = socdev->card->codec;

	wm8350_set_bias_level(codec, SND_SOC_BIAS_OFF);
	return 0;
}

static int wm8350_resume(struct platform_device *pdev)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec = socdev->card->codec;

	wm8350_set_bias_level(codec, SND_SOC_BIAS_STANDBY);

	if (codec->suspend_bias_level == SND_SOC_BIAS_ON)
		wm8350_set_bias_level(codec, SND_SOC_BIAS_ON);

	return 0;
}

static void wm8350_hp_jack_handler(struct wm8350 *wm8350, int irq, void *data)
{
	struct wm8350_data *priv = data;
	u16 reg;
	int report;
	int mask;
	struct wm8350_jack_data *jack = NULL;

	switch (irq) {
	case WM8350_IRQ_CODEC_JCK_DET_L:
		jack = &priv->hpl;
		mask = WM8350_JACK_L_LVL;
		break;

	case WM8350_IRQ_CODEC_JCK_DET_R:
		jack = &priv->hpr;
		mask = WM8350_JACK_R_LVL;
		break;

	default:
		BUG();
	}

	if (!jack->jack) {
		dev_warn(wm8350->dev, "Jack interrupt called with no jack\n");
		return;
	}

	/* Debounce */
	msleep(200);

	reg = wm8350_reg_read(wm8350, WM8350_JACK_PIN_STATUS);
	if (reg & mask)
		report = jack->report;
	else
		report = 0;

	snd_soc_jack_report(jack->jack, report, jack->report);
}

/**
 * wm8350_hp_jack_detect - Enable headphone jack detection.
 *
 * @codec:  WM8350 codec
 * @which:  left or right jack detect signal
 * @jack:   jack to report detection events on
 * @report: value to report
 *
 * Enables the headphone jack detection of the WM8350.
 */
int wm8350_hp_jack_detect(struct snd_soc_codec *codec, enum wm8350_jack which,
			  struct snd_soc_jack *jack, int report)
{
	struct wm8350_data *priv = codec->private_data;
	struct wm8350 *wm8350 = codec->control_data;
	int irq;
	int ena;

	switch (which) {
	case WM8350_JDL:
		priv->hpl.jack = jack;
		priv->hpl.report = report;
		irq = WM8350_IRQ_CODEC_JCK_DET_L;
		ena = WM8350_JDL_ENA;
		break;

	case WM8350_JDR:
		priv->hpr.jack = jack;
		priv->hpr.report = report;
		irq = WM8350_IRQ_CODEC_JCK_DET_R;
		ena = WM8350_JDR_ENA;
		break;

	default:
		return -EINVAL;
	}

	wm8350_set_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA);
	wm8350_set_bits(wm8350, WM8350_JACK_DETECT, ena);

	/* Sync status */
	wm8350_hp_jack_handler(wm8350, irq, priv);

	wm8350_unmask_irq(wm8350, irq);

	return 0;
}
EXPORT_SYMBOL_GPL(wm8350_hp_jack_detect);

static struct snd_soc_codec *wm8350_codec;

static int wm8350_probe(struct platform_device *pdev)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec;
	struct wm8350 *wm8350;
	struct wm8350_data *priv;
	int ret;
	struct wm8350_output *out1;
	struct wm8350_output *out2;

	BUG_ON(!wm8350_codec);

	socdev->card->codec = wm8350_codec;
	codec = socdev->card->codec;
	wm8350 = codec->control_data;
	priv = codec->private_data;

	/* Enable the codec */
	wm8350_set_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CODEC_ENA);

	/* Enable robust clocking mode in ADC */
	wm8350_codec_write(codec, WM8350_SECURITY, 0xa7);
	wm8350_codec_write(codec, 0xde, 0x13);
	wm8350_codec_write(codec, WM8350_SECURITY, 0);

	/* read OUT1 & OUT2 volumes */
	out1 = &priv->out1;
	out2 = &priv->out2;
	out1->left_vol = (wm8350_reg_read(wm8350, WM8350_LOUT1_VOLUME) &
			  WM8350_OUT1L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT;
	out1->right_vol = (wm8350_reg_read(wm8350, WM8350_ROUT1_VOLUME) &
			   WM8350_OUT1R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT;
	out2->left_vol = (wm8350_reg_read(wm8350, WM8350_LOUT2_VOLUME) &
			  WM8350_OUT2L_VOL_MASK) >> WM8350_OUT1L_VOL_SHIFT;
	out2->right_vol = (wm8350_reg_read(wm8350, WM8350_ROUT2_VOLUME) &
			   WM8350_OUT2R_VOL_MASK) >> WM8350_OUT1R_VOL_SHIFT;
	wm8350_reg_write(wm8350, WM8350_LOUT1_VOLUME, 0);
	wm8350_reg_write(wm8350, WM8350_ROUT1_VOLUME, 0);
	wm8350_reg_write(wm8350, WM8350_LOUT2_VOLUME, 0);
	wm8350_reg_write(wm8350, WM8350_ROUT2_VOLUME, 0);

	/* Latch VU bits & mute */
	wm8350_set_bits(wm8350, WM8350_LOUT1_VOLUME,
			WM8350_OUT1_VU | WM8350_OUT1L_MUTE);
	wm8350_set_bits(wm8350, WM8350_LOUT2_VOLUME,
			WM8350_OUT2_VU | WM8350_OUT2L_MUTE);
	wm8350_set_bits(wm8350, WM8350_ROUT1_VOLUME,
			WM8350_OUT1_VU | WM8350_OUT1R_MUTE);
	wm8350_set_bits(wm8350, WM8350_ROUT2_VOLUME,
			WM8350_OUT2_VU | WM8350_OUT2R_MUTE);

	wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L);
	wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R);
	wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L,
			    wm8350_hp_jack_handler, priv);
	wm8350_register_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R,
			    wm8350_hp_jack_handler, priv);

	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
	if (ret < 0) {
		dev_err(&pdev->dev, "failed to create pcms\n");
		return ret;
	}

	snd_soc_add_controls(codec, wm8350_snd_controls,
				ARRAY_SIZE(wm8350_snd_controls));
	wm8350_add_widgets(codec);

	wm8350_set_bias_level(codec, SND_SOC_BIAS_STANDBY);

	ret = snd_soc_init_card(socdev);
	if (ret < 0) {
		dev_err(&pdev->dev, "failed to register card\n");
		goto card_err;
	}

	return 0;

card_err:
	snd_soc_free_pcms(socdev);
	snd_soc_dapm_free(socdev);
	return ret;
}

static int wm8350_remove(struct platform_device *pdev)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec = socdev->card->codec;
	struct wm8350 *wm8350 = codec->control_data;
	struct wm8350_data *priv = codec->private_data;
	int ret;

	wm8350_clear_bits(wm8350, WM8350_JACK_DETECT,
			  WM8350_JDL_ENA | WM8350_JDR_ENA);
	wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_4, WM8350_TOCLK_ENA);

	wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L);
	wm8350_mask_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R);
	wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_L);
	wm8350_free_irq(wm8350, WM8350_IRQ_CODEC_JCK_DET_R);

	priv->hpl.jack = NULL;
	priv->hpr.jack = NULL;

	/* cancel any work waiting to be queued. */
	ret = cancel_delayed_work(&codec->delayed_work);

	/* if there was any work waiting then we run it now and
	 * wait for its completion */
	if (ret) {
		schedule_delayed_work(&codec->delayed_work, 0);
		flush_scheduled_work();
	}

	wm8350_set_bias_level(codec, SND_SOC_BIAS_OFF);

	wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CODEC_ENA);

	return 0;
}

#define WM8350_RATES (SNDRV_PCM_RATE_8000_96000)

#define WM8350_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
			SNDRV_PCM_FMTBIT_S20_3LE |\
			SNDRV_PCM_FMTBIT_S24_LE)

static struct snd_soc_dai_ops wm8350_dai_ops = {
	 .hw_params	= wm8350_pcm_hw_params,
	 .digital_mute	= wm8350_mute,
	 .trigger	= wm8350_pcm_trigger,
	 .set_fmt	= wm8350_set_dai_fmt,
	 .set_sysclk	= wm8350_set_dai_sysclk,
	 .set_pll	= wm8350_set_fll,
	 .set_clkdiv	= wm8350_set_clkdiv,
};

struct snd_soc_dai wm8350_dai = {
	.name = "WM8350",
	.playback = {
		.stream_name = "Playback",
		.channels_min = 1,
		.channels_max = 2,
		.rates = WM8350_RATES,
		.formats = WM8350_FORMATS,
	},
	.capture = {
		 .stream_name = "Capture",
		 .channels_min = 1,
		 .channels_max = 2,
		 .rates = WM8350_RATES,
		 .formats = WM8350_FORMATS,
	 },
	.ops = &wm8350_dai_ops,
};
EXPORT_SYMBOL_GPL(wm8350_dai);

struct snd_soc_codec_device soc_codec_dev_wm8350 = {
	.probe = 	wm8350_probe,
	.remove = 	wm8350_remove,
	.suspend = 	wm8350_suspend,
	.resume =	wm8350_resume,
};
EXPORT_SYMBOL_GPL(soc_codec_dev_wm8350);

static __devinit int wm8350_codec_probe(struct platform_device *pdev)
{
	struct wm8350 *wm8350 = platform_get_drvdata(pdev);
	struct wm8350_data *priv;
	struct snd_soc_codec *codec;
	int ret, i;

	if (wm8350->codec.platform_data == NULL) {
		dev_err(&pdev->dev, "No audio platform data supplied\n");
		return -EINVAL;
	}

	priv = kzalloc(sizeof(struct wm8350_data), GFP_KERNEL);
	if (priv == NULL)
		return -ENOMEM;

	for (i = 0; i < ARRAY_SIZE(supply_names); i++)
		priv->supplies[i].supply = supply_names[i];

	ret = regulator_bulk_get(wm8350->dev, ARRAY_SIZE(priv->supplies),
				 priv->supplies);
	if (ret != 0)
		goto err_priv;

	codec = &priv->codec;
	wm8350->codec.codec = codec;

	wm8350_dai.dev = &pdev->dev;

	mutex_init(&codec->mutex);
	INIT_LIST_HEAD(&codec->dapm_widgets);
	INIT_LIST_HEAD(&codec->dapm_paths);
	codec->dev = &pdev->dev;
	codec->name = "WM8350";
	codec->owner = THIS_MODULE;
	codec->read = wm8350_codec_read;
	codec->write = wm8350_codec_write;
	codec->bias_level = SND_SOC_BIAS_OFF;
	codec->set_bias_level = wm8350_set_bias_level;
	codec->dai = &wm8350_dai;
	codec->num_dai = 1;
	codec->reg_cache_size = WM8350_MAX_REGISTER;
	codec->private_data = priv;
	codec->control_data = wm8350;

	/* Put the codec into reset if it wasn't already */
	wm8350_clear_bits(wm8350, WM8350_POWER_MGMT_5, WM8350_CODEC_ENA);

	INIT_DELAYED_WORK(&codec->delayed_work, wm8350_pga_work);
	ret = snd_soc_register_codec(codec);
	if (ret != 0)
		goto err_supply;

	wm8350_codec = codec;

	ret = snd_soc_register_dai(&wm8350_dai);
	if (ret != 0)
		goto err_codec;
	return 0;

err_codec:
	snd_soc_unregister_codec(codec);
err_supply:
	regulator_bulk_free(ARRAY_SIZE(priv->supplies), priv->supplies);
err_priv:
	kfree(priv);
	wm8350_codec = NULL;
	return ret;
}

static int __devexit wm8350_codec_remove(struct platform_device *pdev)
{
	struct wm8350 *wm8350 = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec = wm8350->codec.codec;
	struct wm8350_data *priv = codec->private_data;

	snd_soc_unregister_dai(&wm8350_dai);
	snd_soc_unregister_codec(codec);
	regulator_bulk_free(ARRAY_SIZE(priv->supplies), priv->supplies);
	kfree(priv);
	wm8350_codec = NULL;
	return 0;
}

static struct platform_driver wm8350_codec_driver = {
	.driver = {
		   .name = "wm8350-codec",
		   .owner = THIS_MODULE,
		   },
	.probe = wm8350_codec_probe,
	.remove = __devexit_p(wm8350_codec_remove),
};

static __init int wm8350_init(void)
{
	return platform_driver_register(&wm8350_codec_driver);
}
module_init(wm8350_init);

static __exit void wm8350_exit(void)
{
	platform_driver_unregister(&wm8350_codec_driver);
}
module_exit(wm8350_exit);

MODULE_DESCRIPTION("ASoC WM8350 driver");
MODULE_AUTHOR("Liam Girdwood");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:wm8350-codec");