summaryrefslogblamecommitdiffstats
path: root/sound/soc/codecs/wm8915.c
blob: 423baa9be241f9e7b3ab654bf9f4dbc9e7427d24 (plain) (tree)
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
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




















                                                                            





















                                     
                             
                                                               



                







                                    
                       


















                                                                 
                                   




































                                                                           










































































































































































































































































































































































































































































































































































































































































































































































































































































































                                                                                     



                                                           





                                                                   









































































































































































                                                                               






                                          
 


                                          
 


                                          
 

                                               
 

                                                
 

                                                
 

                                                















































































































































































































































































































































































                                                                      











































                                                                               























































































































































                                                                                 









                                                                      
                               
                        

                      
                                              










                                                                                










                                                                                












                                                                              


                                                       
















                                                                     
                                  








                                                                        




                                                                      








                                                                      
                        


                


                                                                   
                                                 
                                                                             

























                                                                             

                                            













                                                                            

                                  
                                                         

                                                                            



                                                                               

                                    

















































































































                                                                               
                                                                              

                                                               
                                                                      
                                                           






























                                                                    
                      





















































                                                                              











                                                                      






                                                                           
                   






























































































































































































                                                                               





                                                                   







































                                                                               







                                                                         


                                                  








































                                                                            













                                                       


































































































                                                                             
































































































































































































































                                                                               







                                                                               






































































                                                                               
                                  











                                                                             





































































































































                                                                             
/*
 * wm8915.c - WM8915 audio codec interface
 *
 * Copyright 2011 Wolfson Microelectronics PLC.
 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/completion.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/gcd.h>
#include <linux/gpio.h>
#include <linux/i2c.h>
#include <linux/regulator/consumer.h>
#include <linux/slab.h>
#include <linux/workqueue.h>
#include <sound/core.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <trace/events/asoc.h>

#include <sound/wm8915.h>
#include "wm8915.h"

#define WM8915_AIFS 2

#define HPOUT1L 1
#define HPOUT1R 2
#define HPOUT2L 4
#define HPOUT2R 8

#define WM8915_NUM_SUPPLIES 4
static const char *wm8915_supply_names[WM8915_NUM_SUPPLIES] = {
	"DBVDD",
	"AVDD1",
	"AVDD2",
	"CPVDD",
};

struct wm8915_priv {
	struct snd_soc_codec *codec;

	int ldo1ena;

	int sysclk;
	int sysclk_src;

	int fll_src;
	int fll_fref;
	int fll_fout;

	struct completion fll_lock;

	u16 dcs_pending;
	struct completion dcs_done;

	u16 hpout_ena;
	u16 hpout_pending;

	struct regulator_bulk_data supplies[WM8915_NUM_SUPPLIES];
	struct notifier_block disable_nb[WM8915_NUM_SUPPLIES];

	struct wm8915_pdata pdata;

	int rx_rate[WM8915_AIFS];
	int bclk_rate[WM8915_AIFS];

	/* Platform dependant ReTune mobile configuration */
	int num_retune_mobile_texts;
	const char **retune_mobile_texts;
	int retune_mobile_cfg[2];
	struct soc_enum retune_mobile_enum;

	struct snd_soc_jack *jack;
	bool detecting;
	bool jack_mic;
	wm8915_polarity_fn polarity_cb;

#ifdef CONFIG_GPIOLIB
	struct gpio_chip gpio_chip;
#endif
};

/* We can't use the same notifier block for more than one supply and
 * there's no way I can see to get from a callback to the caller
 * except container_of().
 */
#define WM8915_REGULATOR_EVENT(n) \
static int wm8915_regulator_event_##n(struct notifier_block *nb, \
				    unsigned long event, void *data)	\
{ \
	struct wm8915_priv *wm8915 = container_of(nb, struct wm8915_priv, \
						  disable_nb[n]); \
	if (event & REGULATOR_EVENT_DISABLE) { \
		wm8915->codec->cache_sync = 1; \
	} \
	return 0; \
}

WM8915_REGULATOR_EVENT(0)
WM8915_REGULATOR_EVENT(1)
WM8915_REGULATOR_EVENT(2)
WM8915_REGULATOR_EVENT(3)

static const u16 wm8915_reg[WM8915_MAX_REGISTER] = {
	[WM8915_SOFTWARE_RESET] = 0x8915,
	[WM8915_POWER_MANAGEMENT_7] = 0x10,
	[WM8915_DAC1_HPOUT1_VOLUME] = 0x88,
	[WM8915_DAC2_HPOUT2_VOLUME] = 0x88,
	[WM8915_DAC1_LEFT_VOLUME] = 0x2c0,
	[WM8915_DAC1_RIGHT_VOLUME] = 0x2c0,
	[WM8915_DAC2_LEFT_VOLUME] = 0x2c0,
	[WM8915_DAC2_RIGHT_VOLUME] = 0x2c0,
	[WM8915_OUTPUT1_LEFT_VOLUME] = 0x80,
	[WM8915_OUTPUT1_RIGHT_VOLUME] = 0x80,
	[WM8915_OUTPUT2_LEFT_VOLUME] = 0x80,
	[WM8915_OUTPUT2_RIGHT_VOLUME] = 0x80,
	[WM8915_MICBIAS_1] = 0x39,
	[WM8915_MICBIAS_2] = 0x39,
	[WM8915_LDO_1] = 0x3,
	[WM8915_LDO_2] = 0x13,
	[WM8915_ACCESSORY_DETECT_MODE_1] = 0x4,
	[WM8915_HEADPHONE_DETECT_1] = 0x20,
	[WM8915_MIC_DETECT_1] = 0x7600,
	[WM8915_MIC_DETECT_2] = 0xbf,
	[WM8915_CHARGE_PUMP_1] = 0x1f25,
	[WM8915_CHARGE_PUMP_2] = 0xab19,
	[WM8915_DC_SERVO_5] = 0x2a2a,
	[WM8915_CONTROL_INTERFACE_1] = 0x8004,
	[WM8915_CLOCKING_1] = 0x10,
	[WM8915_AIF_RATE] = 0x83,
	[WM8915_FLL_CONTROL_4] = 0x5dc0,
	[WM8915_FLL_CONTROL_5] = 0xc84,
	[WM8915_FLL_EFS_2] = 0x2,
	[WM8915_AIF1_TX_LRCLK_1] = 0x80,
	[WM8915_AIF1_TX_LRCLK_2] = 0x8,
	[WM8915_AIF1_RX_LRCLK_1] = 0x80,
	[WM8915_AIF1TX_DATA_CONFIGURATION_1] = 0x1818,
	[WM8915_AIF1RX_DATA_CONFIGURATION] = 0x1818,
	[WM8915_AIF1TX_TEST] = 0x7,
	[WM8915_AIF2_TX_LRCLK_1] = 0x80,
	[WM8915_AIF2_TX_LRCLK_2] = 0x8,
	[WM8915_AIF2_RX_LRCLK_1] = 0x80,
	[WM8915_AIF2TX_DATA_CONFIGURATION_1] = 0x1818,
	[WM8915_AIF2RX_DATA_CONFIGURATION] = 0x1818,
	[WM8915_AIF2TX_TEST] = 0x1,
	[WM8915_DSP1_TX_LEFT_VOLUME] = 0xc0,
	[WM8915_DSP1_TX_RIGHT_VOLUME] = 0xc0,
	[WM8915_DSP1_RX_LEFT_VOLUME] = 0xc0,
	[WM8915_DSP1_RX_RIGHT_VOLUME] = 0xc0,
	[WM8915_DSP1_TX_FILTERS] = 0x2000,
	[WM8915_DSP1_RX_FILTERS_1] = 0x200,
	[WM8915_DSP1_RX_FILTERS_2] = 0x10,
	[WM8915_DSP1_DRC_1] = 0x98,
	[WM8915_DSP1_DRC_2] = 0x845,
	[WM8915_DSP1_RX_EQ_GAINS_1] = 0x6318,
	[WM8915_DSP1_RX_EQ_GAINS_2] = 0x6300,
	[WM8915_DSP1_RX_EQ_BAND_1_A] = 0xfca,
	[WM8915_DSP1_RX_EQ_BAND_1_B] = 0x400,
	[WM8915_DSP1_RX_EQ_BAND_1_PG] = 0xd8,
	[WM8915_DSP1_RX_EQ_BAND_2_A] = 0x1eb5,
	[WM8915_DSP1_RX_EQ_BAND_2_B] = 0xf145,
	[WM8915_DSP1_RX_EQ_BAND_2_C] = 0xb75,
	[WM8915_DSP1_RX_EQ_BAND_2_PG] = 0x1c5,
	[WM8915_DSP1_RX_EQ_BAND_3_A] = 0x1c58,
	[WM8915_DSP1_RX_EQ_BAND_3_B] = 0xf373,
	[WM8915_DSP1_RX_EQ_BAND_3_C] = 0xa54,
	[WM8915_DSP1_RX_EQ_BAND_3_PG] = 0x558,
	[WM8915_DSP1_RX_EQ_BAND_4_A] = 0x168e,
	[WM8915_DSP1_RX_EQ_BAND_4_B] = 0xf829,
	[WM8915_DSP1_RX_EQ_BAND_4_C] = 0x7ad,
	[WM8915_DSP1_RX_EQ_BAND_4_PG] = 0x1103,
	[WM8915_DSP1_RX_EQ_BAND_5_A] = 0x564,
	[WM8915_DSP1_RX_EQ_BAND_5_B] = 0x559,
	[WM8915_DSP1_RX_EQ_BAND_5_PG] = 0x4000,
	[WM8915_DSP2_TX_LEFT_VOLUME] = 0xc0,
	[WM8915_DSP2_TX_RIGHT_VOLUME] = 0xc0,
	[WM8915_DSP2_RX_LEFT_VOLUME] = 0xc0,
	[WM8915_DSP2_RX_RIGHT_VOLUME] = 0xc0,
	[WM8915_DSP2_TX_FILTERS] = 0x2000,
	[WM8915_DSP2_RX_FILTERS_1] = 0x200,
	[WM8915_DSP2_RX_FILTERS_2] = 0x10,
	[WM8915_DSP2_DRC_1] = 0x98,
	[WM8915_DSP2_DRC_2] = 0x845,
	[WM8915_DSP2_RX_EQ_GAINS_1] = 0x6318,
	[WM8915_DSP2_RX_EQ_GAINS_2] = 0x6300,
	[WM8915_DSP2_RX_EQ_BAND_1_A] = 0xfca,
	[WM8915_DSP2_RX_EQ_BAND_1_B] = 0x400,
	[WM8915_DSP2_RX_EQ_BAND_1_PG] = 0xd8,
	[WM8915_DSP2_RX_EQ_BAND_2_A] = 0x1eb5,
	[WM8915_DSP2_RX_EQ_BAND_2_B] = 0xf145,
	[WM8915_DSP2_RX_EQ_BAND_2_C] = 0xb75,
	[WM8915_DSP2_RX_EQ_BAND_2_PG] = 0x1c5,
	[WM8915_DSP2_RX_EQ_BAND_3_A] = 0x1c58,
	[WM8915_DSP2_RX_EQ_BAND_3_B] = 0xf373,
	[WM8915_DSP2_RX_EQ_BAND_3_C] = 0xa54,
	[WM8915_DSP2_RX_EQ_BAND_3_PG] = 0x558,
	[WM8915_DSP2_RX_EQ_BAND_4_A] = 0x168e,
	[WM8915_DSP2_RX_EQ_BAND_4_B] = 0xf829,
	[WM8915_DSP2_RX_EQ_BAND_4_C] = 0x7ad,
	[WM8915_DSP2_RX_EQ_BAND_4_PG] = 0x1103,
	[WM8915_DSP2_RX_EQ_BAND_5_A] = 0x564,
	[WM8915_DSP2_RX_EQ_BAND_5_B] = 0x559,
	[WM8915_DSP2_RX_EQ_BAND_5_PG] = 0x4000,
	[WM8915_OVERSAMPLING] = 0xd,
	[WM8915_SIDETONE] = 0x1040,
	[WM8915_GPIO_1] = 0xa101,
	[WM8915_GPIO_2] = 0xa101,
	[WM8915_GPIO_3] = 0xa101,
	[WM8915_GPIO_4] = 0xa101,
	[WM8915_GPIO_5] = 0xa101,
	[WM8915_PULL_CONTROL_2] = 0x140,
	[WM8915_INTERRUPT_STATUS_1_MASK] = 0x1f,
	[WM8915_INTERRUPT_STATUS_2_MASK] = 0x1ecf,
	[WM8915_RIGHT_PDM_SPEAKER] = 0x1,
	[WM8915_PDM_SPEAKER_MUTE_SEQUENCE] = 0x69,
	[WM8915_PDM_SPEAKER_VOLUME] = 0x66,
	[WM8915_WRITE_SEQUENCER_0] = 0x1,
	[WM8915_WRITE_SEQUENCER_1] = 0x1,
	[WM8915_WRITE_SEQUENCER_3] = 0x6,
	[WM8915_WRITE_SEQUENCER_4] = 0x40,
	[WM8915_WRITE_SEQUENCER_5] = 0x1,
	[WM8915_WRITE_SEQUENCER_6] = 0xf,
	[WM8915_WRITE_SEQUENCER_7] = 0x6,
	[WM8915_WRITE_SEQUENCER_8] = 0x1,
	[WM8915_WRITE_SEQUENCER_9] = 0x3,
	[WM8915_WRITE_SEQUENCER_10] = 0x104,
	[WM8915_WRITE_SEQUENCER_12] = 0x60,
	[WM8915_WRITE_SEQUENCER_13] = 0x11,
	[WM8915_WRITE_SEQUENCER_14] = 0x401,
	[WM8915_WRITE_SEQUENCER_16] = 0x50,
	[WM8915_WRITE_SEQUENCER_17] = 0x3,
	[WM8915_WRITE_SEQUENCER_18] = 0x100,
	[WM8915_WRITE_SEQUENCER_20] = 0x51,
	[WM8915_WRITE_SEQUENCER_21] = 0x3,
	[WM8915_WRITE_SEQUENCER_22] = 0x104,
	[WM8915_WRITE_SEQUENCER_23] = 0xa,
	[WM8915_WRITE_SEQUENCER_24] = 0x60,
	[WM8915_WRITE_SEQUENCER_25] = 0x3b,
	[WM8915_WRITE_SEQUENCER_26] = 0x502,
	[WM8915_WRITE_SEQUENCER_27] = 0x100,
	[WM8915_WRITE_SEQUENCER_28] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_32] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_36] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_40] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_44] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_48] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_52] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_56] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_60] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_64] = 0x1,
	[WM8915_WRITE_SEQUENCER_65] = 0x1,
	[WM8915_WRITE_SEQUENCER_67] = 0x6,
	[WM8915_WRITE_SEQUENCER_68] = 0x40,
	[WM8915_WRITE_SEQUENCER_69] = 0x1,
	[WM8915_WRITE_SEQUENCER_70] = 0xf,
	[WM8915_WRITE_SEQUENCER_71] = 0x6,
	[WM8915_WRITE_SEQUENCER_72] = 0x1,
	[WM8915_WRITE_SEQUENCER_73] = 0x3,
	[WM8915_WRITE_SEQUENCER_74] = 0x104,
	[WM8915_WRITE_SEQUENCER_76] = 0x60,
	[WM8915_WRITE_SEQUENCER_77] = 0x11,
	[WM8915_WRITE_SEQUENCER_78] = 0x401,
	[WM8915_WRITE_SEQUENCER_80] = 0x50,
	[WM8915_WRITE_SEQUENCER_81] = 0x3,
	[WM8915_WRITE_SEQUENCER_82] = 0x100,
	[WM8915_WRITE_SEQUENCER_84] = 0x60,
	[WM8915_WRITE_SEQUENCER_85] = 0x3b,
	[WM8915_WRITE_SEQUENCER_86] = 0x502,
	[WM8915_WRITE_SEQUENCER_87] = 0x100,
	[WM8915_WRITE_SEQUENCER_88] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_92] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_96] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_100] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_104] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_108] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_112] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_116] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_120] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_124] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_128] = 0x1,
	[WM8915_WRITE_SEQUENCER_129] = 0x1,
	[WM8915_WRITE_SEQUENCER_131] = 0x6,
	[WM8915_WRITE_SEQUENCER_132] = 0x40,
	[WM8915_WRITE_SEQUENCER_133] = 0x1,
	[WM8915_WRITE_SEQUENCER_134] = 0xf,
	[WM8915_WRITE_SEQUENCER_135] = 0x6,
	[WM8915_WRITE_SEQUENCER_136] = 0x1,
	[WM8915_WRITE_SEQUENCER_137] = 0x3,
	[WM8915_WRITE_SEQUENCER_138] = 0x106,
	[WM8915_WRITE_SEQUENCER_140] = 0x61,
	[WM8915_WRITE_SEQUENCER_141] = 0x11,
	[WM8915_WRITE_SEQUENCER_142] = 0x401,
	[WM8915_WRITE_SEQUENCER_144] = 0x50,
	[WM8915_WRITE_SEQUENCER_145] = 0x3,
	[WM8915_WRITE_SEQUENCER_146] = 0x102,
	[WM8915_WRITE_SEQUENCER_148] = 0x51,
	[WM8915_WRITE_SEQUENCER_149] = 0x3,
	[WM8915_WRITE_SEQUENCER_150] = 0x106,
	[WM8915_WRITE_SEQUENCER_151] = 0xa,
	[WM8915_WRITE_SEQUENCER_152] = 0x61,
	[WM8915_WRITE_SEQUENCER_153] = 0x3b,
	[WM8915_WRITE_SEQUENCER_154] = 0x502,
	[WM8915_WRITE_SEQUENCER_155] = 0x100,
	[WM8915_WRITE_SEQUENCER_156] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_160] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_164] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_168] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_172] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_176] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_180] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_184] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_188] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_192] = 0x1,
	[WM8915_WRITE_SEQUENCER_193] = 0x1,
	[WM8915_WRITE_SEQUENCER_195] = 0x6,
	[WM8915_WRITE_SEQUENCER_196] = 0x40,
	[WM8915_WRITE_SEQUENCER_197] = 0x1,
	[WM8915_WRITE_SEQUENCER_198] = 0xf,
	[WM8915_WRITE_SEQUENCER_199] = 0x6,
	[WM8915_WRITE_SEQUENCER_200] = 0x1,
	[WM8915_WRITE_SEQUENCER_201] = 0x3,
	[WM8915_WRITE_SEQUENCER_202] = 0x106,
	[WM8915_WRITE_SEQUENCER_204] = 0x61,
	[WM8915_WRITE_SEQUENCER_205] = 0x11,
	[WM8915_WRITE_SEQUENCER_206] = 0x401,
	[WM8915_WRITE_SEQUENCER_208] = 0x50,
	[WM8915_WRITE_SEQUENCER_209] = 0x3,
	[WM8915_WRITE_SEQUENCER_210] = 0x102,
	[WM8915_WRITE_SEQUENCER_212] = 0x61,
	[WM8915_WRITE_SEQUENCER_213] = 0x3b,
	[WM8915_WRITE_SEQUENCER_214] = 0x502,
	[WM8915_WRITE_SEQUENCER_215] = 0x100,
	[WM8915_WRITE_SEQUENCER_216] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_220] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_224] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_228] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_232] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_236] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_240] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_244] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_248] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_252] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_256] = 0x60,
	[WM8915_WRITE_SEQUENCER_258] = 0x601,
	[WM8915_WRITE_SEQUENCER_260] = 0x50,
	[WM8915_WRITE_SEQUENCER_262] = 0x100,
	[WM8915_WRITE_SEQUENCER_264] = 0x1,
	[WM8915_WRITE_SEQUENCER_266] = 0x104,
	[WM8915_WRITE_SEQUENCER_267] = 0x100,
	[WM8915_WRITE_SEQUENCER_268] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_272] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_276] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_280] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_284] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_288] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_292] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_296] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_300] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_304] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_308] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_312] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_316] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_320] = 0x61,
	[WM8915_WRITE_SEQUENCER_322] = 0x601,
	[WM8915_WRITE_SEQUENCER_324] = 0x50,
	[WM8915_WRITE_SEQUENCER_326] = 0x102,
	[WM8915_WRITE_SEQUENCER_328] = 0x1,
	[WM8915_WRITE_SEQUENCER_330] = 0x106,
	[WM8915_WRITE_SEQUENCER_331] = 0x100,
	[WM8915_WRITE_SEQUENCER_332] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_336] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_340] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_344] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_348] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_352] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_356] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_360] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_364] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_368] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_372] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_376] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_380] = 0x2fff,
	[WM8915_WRITE_SEQUENCER_384] = 0x60,
	[WM8915_WRITE_SEQUENCER_386] = 0x601,
	[WM8915_WRITE_SEQUENCER_388] = 0x61,
	[WM8915_WRITE_SEQUENCER_390] = 0x601,
	[WM8915_WRITE_SEQUENCER_392] = 0x50,
	[WM8915_WRITE_SEQUENCER_394] = 0x300,
	[WM8915_WRITE_SEQUENCER_396] = 0x1,
	[WM8915_WRITE_SEQUENCER_398] = 0x304,
	[WM8915_WRITE_SEQUENCER_400] = 0x40,
	[WM8915_WRITE_SEQUENCER_402] = 0xf,
	[WM8915_WRITE_SEQUENCER_404] = 0x1,
	[WM8915_WRITE_SEQUENCER_407] = 0x100,
};

static const DECLARE_TLV_DB_SCALE(inpga_tlv, 0, 100, 0);
static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 150, 0);
static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
static const DECLARE_TLV_DB_SCALE(out_digital_tlv, -1200, 150, 0);
static const DECLARE_TLV_DB_SCALE(out_tlv, -900, 75, 0);
static const DECLARE_TLV_DB_SCALE(spk_tlv, -900, 150, 0);
static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);

static const char *sidetone_hpf_text[] = {
	"2.9kHz", "1.5kHz", "735Hz", "403Hz", "196Hz", "98Hz", "49Hz"
};

static const struct soc_enum sidetone_hpf =
	SOC_ENUM_SINGLE(WM8915_SIDETONE, 7, 6, sidetone_hpf_text);

static const char *hpf_mode_text[] = {
	"HiFi", "Custom", "Voice"
};

static const struct soc_enum dsp1tx_hpf_mode =
	SOC_ENUM_SINGLE(WM8915_DSP1_TX_FILTERS, 3, 3, hpf_mode_text);

static const struct soc_enum dsp2tx_hpf_mode =
	SOC_ENUM_SINGLE(WM8915_DSP2_TX_FILTERS, 3, 3, hpf_mode_text);

static const char *hpf_cutoff_text[] = {
	"50Hz", "75Hz", "100Hz", "150Hz", "200Hz", "300Hz", "400Hz"
};

static const struct soc_enum dsp1tx_hpf_cutoff =
	SOC_ENUM_SINGLE(WM8915_DSP1_TX_FILTERS, 0, 7, hpf_cutoff_text);

static const struct soc_enum dsp2tx_hpf_cutoff =
	SOC_ENUM_SINGLE(WM8915_DSP2_TX_FILTERS, 0, 7, hpf_cutoff_text);

static void wm8915_set_retune_mobile(struct snd_soc_codec *codec, int block)
{
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	struct wm8915_pdata *pdata = &wm8915->pdata;
	int base, best, best_val, save, i, cfg, iface;

	if (!wm8915->num_retune_mobile_texts)
		return;

	switch (block) {
	case 0:
		base = WM8915_DSP1_RX_EQ_GAINS_1;
		if (snd_soc_read(codec, WM8915_POWER_MANAGEMENT_8) &
		    WM8915_DSP1RX_SRC)
			iface = 1;
		else
			iface = 0;
		break;
	case 1:
		base = WM8915_DSP1_RX_EQ_GAINS_2;
		if (snd_soc_read(codec, WM8915_POWER_MANAGEMENT_8) &
		    WM8915_DSP2RX_SRC)
			iface = 1;
		else
			iface = 0;
		break;
	default:
		return;
	}

	/* Find the version of the currently selected configuration
	 * with the nearest sample rate. */
	cfg = wm8915->retune_mobile_cfg[block];
	best = 0;
	best_val = INT_MAX;
	for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) {
		if (strcmp(pdata->retune_mobile_cfgs[i].name,
			   wm8915->retune_mobile_texts[cfg]) == 0 &&
		    abs(pdata->retune_mobile_cfgs[i].rate
			- wm8915->rx_rate[iface]) < best_val) {
			best = i;
			best_val = abs(pdata->retune_mobile_cfgs[i].rate
				       - wm8915->rx_rate[iface]);
		}
	}

	dev_dbg(codec->dev, "ReTune Mobile %d %s/%dHz for %dHz sample rate\n",
		block,
		pdata->retune_mobile_cfgs[best].name,
		pdata->retune_mobile_cfgs[best].rate,
		wm8915->rx_rate[iface]);

	/* The EQ will be disabled while reconfiguring it, remember the
	 * current configuration. 
	 */
	save = snd_soc_read(codec, base);
	save &= WM8915_DSP1RX_EQ_ENA;

	for (i = 0; i < ARRAY_SIZE(pdata->retune_mobile_cfgs[best].regs); i++)
		snd_soc_update_bits(codec, base + i, 0xffff,
				    pdata->retune_mobile_cfgs[best].regs[i]);

	snd_soc_update_bits(codec, base, WM8915_DSP1RX_EQ_ENA, save);
}

/* Icky as hell but saves code duplication */
static int wm8915_get_retune_mobile_block(const char *name)
{
	if (strcmp(name, "DSP1 EQ Mode") == 0)
		return 0;
	if (strcmp(name, "DSP2 EQ Mode") == 0)
		return 1;
	return -EINVAL;
}

static int wm8915_put_retune_mobile_enum(struct snd_kcontrol *kcontrol,
					 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	struct wm8915_pdata *pdata = &wm8915->pdata;
	int block = wm8915_get_retune_mobile_block(kcontrol->id.name);
	int value = ucontrol->value.integer.value[0];

	if (block < 0)
		return block;

	if (value >= pdata->num_retune_mobile_cfgs)
		return -EINVAL;

	wm8915->retune_mobile_cfg[block] = value;

	wm8915_set_retune_mobile(codec, block);

	return 0;
}

static int wm8915_get_retune_mobile_enum(struct snd_kcontrol *kcontrol,
					 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	int block = wm8915_get_retune_mobile_block(kcontrol->id.name);

	ucontrol->value.enumerated.item[0] = wm8915->retune_mobile_cfg[block];

	return 0;
}

static const struct snd_kcontrol_new wm8915_snd_controls[] = {
SOC_DOUBLE_R_TLV("Capture Volume", WM8915_LEFT_LINE_INPUT_VOLUME,
		 WM8915_RIGHT_LINE_INPUT_VOLUME, 0, 31, 0, inpga_tlv),
SOC_DOUBLE_R("Capture ZC Switch", WM8915_LEFT_LINE_INPUT_VOLUME,
	     WM8915_RIGHT_LINE_INPUT_VOLUME, 5, 1, 0),

SOC_DOUBLE_TLV("DAC1 Sidetone Volume", WM8915_DAC1_MIXER_VOLUMES,
	       0, 5, 24, 0, sidetone_tlv),
SOC_DOUBLE_TLV("DAC2 Sidetone Volume", WM8915_DAC2_MIXER_VOLUMES,
	       0, 5, 24, 0, sidetone_tlv),
SOC_SINGLE("Sidetone LPF Switch", WM8915_SIDETONE, 12, 1, 0),
SOC_ENUM("Sidetone HPF Cut-off", sidetone_hpf),
SOC_SINGLE("Sidetone HPF Switch", WM8915_SIDETONE, 6, 1, 0),

SOC_DOUBLE_R_TLV("DSP1 Capture Volume", WM8915_DSP1_TX_LEFT_VOLUME,
		 WM8915_DSP1_TX_RIGHT_VOLUME, 1, 96, 0, digital_tlv),
SOC_DOUBLE_R_TLV("DSP2 Capture Volume", WM8915_DSP2_TX_LEFT_VOLUME,
		 WM8915_DSP2_TX_RIGHT_VOLUME, 1, 96, 0, digital_tlv),

SOC_SINGLE("DSP1 Capture Notch Filter Switch", WM8915_DSP1_TX_FILTERS,
	   13, 1, 0),
SOC_DOUBLE("DSP1 Capture HPF Switch", WM8915_DSP1_TX_FILTERS, 12, 11, 1, 0),
SOC_ENUM("DSP1 Capture HPF Mode", dsp1tx_hpf_mode),
SOC_ENUM("DSP1 Capture HPF Cutoff", dsp1tx_hpf_cutoff),

SOC_SINGLE("DSP2 Capture Notch Filter Switch", WM8915_DSP2_TX_FILTERS,
	   13, 1, 0),
SOC_DOUBLE("DSP2 Capture HPF Switch", WM8915_DSP2_TX_FILTERS, 12, 11, 1, 0),
SOC_ENUM("DSP2 Capture HPF Mode", dsp2tx_hpf_mode),
SOC_ENUM("DSP2 Capture HPF Cutoff", dsp2tx_hpf_cutoff),

SOC_DOUBLE_R_TLV("DSP1 Playback Volume", WM8915_DSP1_RX_LEFT_VOLUME,
		 WM8915_DSP1_RX_RIGHT_VOLUME, 1, 112, 0, digital_tlv),
SOC_SINGLE("DSP1 Playback Switch", WM8915_DSP1_RX_FILTERS_1, 9, 1, 1),

SOC_DOUBLE_R_TLV("DSP2 Playback Volume", WM8915_DSP2_RX_LEFT_VOLUME,
		 WM8915_DSP2_RX_RIGHT_VOLUME, 1, 112, 0, digital_tlv),
SOC_SINGLE("DSP2 Playback Switch", WM8915_DSP2_RX_FILTERS_1, 9, 1, 1),

SOC_DOUBLE_R_TLV("DAC1 Volume", WM8915_DAC1_LEFT_VOLUME,
		 WM8915_DAC1_RIGHT_VOLUME, 1, 112, 0, digital_tlv),
SOC_DOUBLE_R("DAC1 Switch", WM8915_DAC1_LEFT_VOLUME,
	     WM8915_DAC1_RIGHT_VOLUME, 9, 1, 1),

SOC_DOUBLE_R_TLV("DAC2 Volume", WM8915_DAC2_LEFT_VOLUME,
		 WM8915_DAC2_RIGHT_VOLUME, 1, 112, 0, digital_tlv),
SOC_DOUBLE_R("DAC2 Switch", WM8915_DAC2_LEFT_VOLUME,
	     WM8915_DAC2_RIGHT_VOLUME, 9, 1, 1),

SOC_SINGLE("Speaker High Performance Switch", WM8915_OVERSAMPLING, 3, 1, 0),
SOC_SINGLE("DMIC High Performance Switch", WM8915_OVERSAMPLING, 2, 1, 0),
SOC_SINGLE("ADC High Performance Switch", WM8915_OVERSAMPLING, 1, 1, 0),
SOC_SINGLE("DAC High Performance Switch", WM8915_OVERSAMPLING, 0, 1, 0),

SOC_SINGLE("DAC Soft Mute Switch", WM8915_DAC_SOFTMUTE, 1, 1, 0),
SOC_SINGLE("DAC Slow Soft Mute Switch", WM8915_DAC_SOFTMUTE, 0, 1, 0),

SOC_DOUBLE_TLV("Digital Output 1 Volume", WM8915_DAC1_HPOUT1_VOLUME, 0, 4,
	       8, 0, out_digital_tlv),
SOC_DOUBLE_TLV("Digital Output 2 Volume", WM8915_DAC2_HPOUT2_VOLUME, 0, 4,
	       8, 0, out_digital_tlv),

SOC_DOUBLE_R_TLV("Output 1 Volume", WM8915_OUTPUT1_LEFT_VOLUME,
		 WM8915_OUTPUT1_RIGHT_VOLUME, 0, 12, 0, out_tlv),
SOC_DOUBLE_R("Output 1 ZC Switch",  WM8915_OUTPUT1_LEFT_VOLUME,
	     WM8915_OUTPUT1_RIGHT_VOLUME, 7, 1, 0),

SOC_DOUBLE_R_TLV("Output 2 Volume", WM8915_OUTPUT2_LEFT_VOLUME,
		 WM8915_OUTPUT2_RIGHT_VOLUME, 0, 12, 0, out_tlv),
SOC_DOUBLE_R("Output 2 ZC Switch",  WM8915_OUTPUT2_LEFT_VOLUME,
	     WM8915_OUTPUT2_RIGHT_VOLUME, 7, 1, 0),

SOC_DOUBLE_TLV("Speaker Volume", WM8915_PDM_SPEAKER_VOLUME, 0, 4, 8, 0,
	       spk_tlv),
SOC_DOUBLE_R("Speaker Switch", WM8915_LEFT_PDM_SPEAKER,
	     WM8915_RIGHT_PDM_SPEAKER, 3, 1, 1),
SOC_DOUBLE_R("Speaker ZC Switch", WM8915_LEFT_PDM_SPEAKER,
	     WM8915_RIGHT_PDM_SPEAKER, 2, 1, 0),

SOC_SINGLE("DSP1 EQ Switch", WM8915_DSP1_RX_EQ_GAINS_1, 0, 1, 0),
SOC_SINGLE("DSP2 EQ Switch", WM8915_DSP2_RX_EQ_GAINS_1, 0, 1, 0),
};

static const struct snd_kcontrol_new wm8915_eq_controls[] = {
SOC_SINGLE_TLV("DSP1 EQ B1 Volume", WM8915_DSP1_RX_EQ_GAINS_1, 11, 31, 0,
	       eq_tlv),
SOC_SINGLE_TLV("DSP1 EQ B2 Volume", WM8915_DSP1_RX_EQ_GAINS_1, 6, 31, 0,
	       eq_tlv),
SOC_SINGLE_TLV("DSP1 EQ B3 Volume", WM8915_DSP1_RX_EQ_GAINS_1, 1, 31, 0,
	       eq_tlv),
SOC_SINGLE_TLV("DSP1 EQ B4 Volume", WM8915_DSP1_RX_EQ_GAINS_2, 11, 31, 0,
	       eq_tlv),
SOC_SINGLE_TLV("DSP1 EQ B5 Volume", WM8915_DSP1_RX_EQ_GAINS_2, 6, 31, 0,
	       eq_tlv),

SOC_SINGLE_TLV("DSP2 EQ B1 Volume", WM8915_DSP2_RX_EQ_GAINS_1, 11, 31, 0,
	       eq_tlv),
SOC_SINGLE_TLV("DSP2 EQ B2 Volume", WM8915_DSP2_RX_EQ_GAINS_1, 6, 31, 0,
	       eq_tlv),
SOC_SINGLE_TLV("DSP2 EQ B3 Volume", WM8915_DSP2_RX_EQ_GAINS_1, 1, 31, 0,
	       eq_tlv),
SOC_SINGLE_TLV("DSP2 EQ B4 Volume", WM8915_DSP2_RX_EQ_GAINS_2, 11, 31, 0,
	       eq_tlv),
SOC_SINGLE_TLV("DSP2 EQ B5 Volume", WM8915_DSP2_RX_EQ_GAINS_2, 6, 31, 0,
	       eq_tlv),
};

static int cp_event(struct snd_soc_dapm_widget *w,
		    struct snd_kcontrol *kcontrol, int event)
{
	switch (event) {
	case SND_SOC_DAPM_POST_PMU:
		msleep(5);
		break;
	default:
		BUG();
		return -EINVAL;
	}

	return 0;
}

static int rmv_short_event(struct snd_soc_dapm_widget *w,
			   struct snd_kcontrol *kcontrol, int event)
{
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(w->codec);

	/* Record which outputs we enabled */
	switch (event) {
	case SND_SOC_DAPM_PRE_PMD:
		wm8915->hpout_pending &= ~w->shift;
		break;
	case SND_SOC_DAPM_PRE_PMU:
		wm8915->hpout_pending |= w->shift;
		break;
	default:
		BUG();
		return -EINVAL;
	}

	return 0;
}

static void wait_for_dc_servo(struct snd_soc_codec *codec, u16 mask)
{
	struct i2c_client *i2c = to_i2c_client(codec->dev);
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	int i, ret;
	unsigned long timeout = 200;

	snd_soc_write(codec, WM8915_DC_SERVO_2, mask);

	/* Use the interrupt if possible */
	do {
		if (i2c->irq) {
			timeout = wait_for_completion_timeout(&wm8915->dcs_done,
							      msecs_to_jiffies(200));
			if (timeout == 0)
				dev_err(codec->dev, "DC servo timed out\n");

		} else {
			msleep(1);
			if (--i) {
				timeout = 0;
				break;
			}
		}

		ret = snd_soc_read(codec, WM8915_DC_SERVO_2);
		dev_dbg(codec->dev, "DC servo state: %x\n", ret);
	} while (ret & mask);

	if (timeout == 0)
		dev_err(codec->dev, "DC servo timed out for %x\n", mask);
	else
		dev_dbg(codec->dev, "DC servo complete for %x\n", mask);
}

static void wm8915_seq_notifier(struct snd_soc_dapm_context *dapm,
				enum snd_soc_dapm_type event, int subseq)
{
	struct snd_soc_codec *codec = container_of(dapm,
						   struct snd_soc_codec, dapm);
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	u16 val, mask;

	/* Complete any pending DC servo starts */
	if (wm8915->dcs_pending) {
		dev_dbg(codec->dev, "Starting DC servo for %x\n",
			wm8915->dcs_pending);

		/* Trigger a startup sequence */
		wait_for_dc_servo(codec, wm8915->dcs_pending
				         << WM8915_DCS_TRIG_STARTUP_0_SHIFT);

		wm8915->dcs_pending = 0;
	}

	if (wm8915->hpout_pending != wm8915->hpout_ena) {
		dev_dbg(codec->dev, "Applying RMV_SHORTs %x->%x\n",
			wm8915->hpout_ena, wm8915->hpout_pending);

		val = 0;
		mask = 0;
		if (wm8915->hpout_pending & HPOUT1L) {
			val |= WM8915_HPOUT1L_RMV_SHORT;
			mask |= WM8915_HPOUT1L_RMV_SHORT;
		} else {
			mask |= WM8915_HPOUT1L_RMV_SHORT |
				WM8915_HPOUT1L_OUTP |
				WM8915_HPOUT1L_DLY;
		}

		if (wm8915->hpout_pending & HPOUT1R) {
			val |= WM8915_HPOUT1R_RMV_SHORT;
			mask |= WM8915_HPOUT1R_RMV_SHORT;
		} else {
			mask |= WM8915_HPOUT1R_RMV_SHORT |
				WM8915_HPOUT1R_OUTP |
				WM8915_HPOUT1R_DLY;
		}

		snd_soc_update_bits(codec, WM8915_ANALOGUE_HP_1, mask, val);

		val = 0;
		mask = 0;
		if (wm8915->hpout_pending & HPOUT2L) {
			val |= WM8915_HPOUT2L_RMV_SHORT;
			mask |= WM8915_HPOUT2L_RMV_SHORT;
		} else {
			mask |= WM8915_HPOUT2L_RMV_SHORT |
				WM8915_HPOUT2L_OUTP |
				WM8915_HPOUT2L_DLY;
		}

		if (wm8915->hpout_pending & HPOUT2R) {
			val |= WM8915_HPOUT2R_RMV_SHORT;
			mask |= WM8915_HPOUT2R_RMV_SHORT;
		} else {
			mask |= WM8915_HPOUT2R_RMV_SHORT |
				WM8915_HPOUT2R_OUTP |
				WM8915_HPOUT2R_DLY;
		}

		snd_soc_update_bits(codec, WM8915_ANALOGUE_HP_2, mask, val);

		wm8915->hpout_ena = wm8915->hpout_pending;
	}
}

static int dcs_start(struct snd_soc_dapm_widget *w,
		     struct snd_kcontrol *kcontrol, int event)
{
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(w->codec);

	switch (event) {
	case SND_SOC_DAPM_POST_PMU:
		wm8915->dcs_pending |= 1 << w->shift;
		break;
	default:
		BUG();
		return -EINVAL;
	}

	return 0;
}

static const char *sidetone_text[] = {
	"IN1", "IN2",
};

static const struct soc_enum left_sidetone_enum =
	SOC_ENUM_SINGLE(WM8915_SIDETONE, 0, 2, sidetone_text);

static const struct snd_kcontrol_new left_sidetone =
	SOC_DAPM_ENUM("Left Sidetone", left_sidetone_enum);

static const struct soc_enum right_sidetone_enum =
	SOC_ENUM_SINGLE(WM8915_SIDETONE, 1, 2, sidetone_text);

static const struct snd_kcontrol_new right_sidetone =
	SOC_DAPM_ENUM("Right Sidetone", right_sidetone_enum);

static const char *spk_text[] = {
	"DAC1L", "DAC1R", "DAC2L", "DAC2R"
};

static const struct soc_enum spkl_enum =
	SOC_ENUM_SINGLE(WM8915_LEFT_PDM_SPEAKER, 0, 4, spk_text);

static const struct snd_kcontrol_new spkl_mux =
	SOC_DAPM_ENUM("SPKL", spkl_enum);

static const struct soc_enum spkr_enum =
	SOC_ENUM_SINGLE(WM8915_RIGHT_PDM_SPEAKER, 0, 4, spk_text);

static const struct snd_kcontrol_new spkr_mux =
	SOC_DAPM_ENUM("SPKR", spkr_enum);

static const char *dsp1rx_text[] = {
	"AIF1", "AIF2"
};

static const struct soc_enum dsp1rx_enum =
	SOC_ENUM_SINGLE(WM8915_POWER_MANAGEMENT_8, 0, 2, dsp1rx_text);

static const struct snd_kcontrol_new dsp1rx =
	SOC_DAPM_ENUM("DSP1RX", dsp1rx_enum);

static const char *dsp2rx_text[] = {
	 "AIF2", "AIF1"
};

static const struct soc_enum dsp2rx_enum =
	SOC_ENUM_SINGLE(WM8915_POWER_MANAGEMENT_8, 4, 2, dsp2rx_text);

static const struct snd_kcontrol_new dsp2rx =
	SOC_DAPM_ENUM("DSP2RX", dsp2rx_enum);

static const char *aif2tx_text[] = {
	"DSP2", "DSP1", "AIF1"
};

static const struct soc_enum aif2tx_enum =
	SOC_ENUM_SINGLE(WM8915_POWER_MANAGEMENT_8, 6, 3, aif2tx_text);

static const struct snd_kcontrol_new aif2tx =
	SOC_DAPM_ENUM("AIF2TX", aif2tx_enum);

static const char *inmux_text[] = {
	"ADC", "DMIC1", "DMIC2"
};

static const struct soc_enum in1_enum =
	SOC_ENUM_SINGLE(WM8915_POWER_MANAGEMENT_7, 0, 3, inmux_text);

static const struct snd_kcontrol_new in1_mux =
	SOC_DAPM_ENUM("IN1 Mux", in1_enum);

static const struct soc_enum in2_enum =
	SOC_ENUM_SINGLE(WM8915_POWER_MANAGEMENT_7, 4, 3, inmux_text);

static const struct snd_kcontrol_new in2_mux =
	SOC_DAPM_ENUM("IN2 Mux", in2_enum);

static const struct snd_kcontrol_new dac2r_mix[] = {
SOC_DAPM_SINGLE("Right Sidetone Switch", WM8915_DAC2_RIGHT_MIXER_ROUTING,
		5, 1, 0),
SOC_DAPM_SINGLE("Left Sidetone Switch", WM8915_DAC2_RIGHT_MIXER_ROUTING,
		4, 1, 0),
SOC_DAPM_SINGLE("DSP2 Switch", WM8915_DAC2_RIGHT_MIXER_ROUTING, 1, 1, 0),
SOC_DAPM_SINGLE("DSP1 Switch", WM8915_DAC2_RIGHT_MIXER_ROUTING, 0, 1, 0),
};

static const struct snd_kcontrol_new dac2l_mix[] = {
SOC_DAPM_SINGLE("Right Sidetone Switch", WM8915_DAC2_LEFT_MIXER_ROUTING,
		5, 1, 0),
SOC_DAPM_SINGLE("Left Sidetone Switch", WM8915_DAC2_LEFT_MIXER_ROUTING,
		4, 1, 0),
SOC_DAPM_SINGLE("DSP2 Switch", WM8915_DAC2_LEFT_MIXER_ROUTING, 1, 1, 0),
SOC_DAPM_SINGLE("DSP1 Switch", WM8915_DAC2_LEFT_MIXER_ROUTING, 0, 1, 0),
};

static const struct snd_kcontrol_new dac1r_mix[] = {
SOC_DAPM_SINGLE("Right Sidetone Switch", WM8915_DAC1_RIGHT_MIXER_ROUTING,
		5, 1, 0),
SOC_DAPM_SINGLE("Left Sidetone Switch", WM8915_DAC1_RIGHT_MIXER_ROUTING,
		4, 1, 0),
SOC_DAPM_SINGLE("DSP2 Switch", WM8915_DAC1_RIGHT_MIXER_ROUTING, 1, 1, 0),
SOC_DAPM_SINGLE("DSP1 Switch", WM8915_DAC1_RIGHT_MIXER_ROUTING, 0, 1, 0),
};

static const struct snd_kcontrol_new dac1l_mix[] = {
SOC_DAPM_SINGLE("Right Sidetone Switch", WM8915_DAC1_LEFT_MIXER_ROUTING,
		5, 1, 0),
SOC_DAPM_SINGLE("Left Sidetone Switch", WM8915_DAC1_LEFT_MIXER_ROUTING,
		4, 1, 0),
SOC_DAPM_SINGLE("DSP2 Switch", WM8915_DAC1_LEFT_MIXER_ROUTING, 1, 1, 0),
SOC_DAPM_SINGLE("DSP1 Switch", WM8915_DAC1_LEFT_MIXER_ROUTING, 0, 1, 0),
};

static const struct snd_kcontrol_new dsp1txl[] = {
SOC_DAPM_SINGLE("IN1 Switch", WM8915_DSP1_TX_LEFT_MIXER_ROUTING,
		1, 1, 0),
SOC_DAPM_SINGLE("DAC Switch", WM8915_DSP1_TX_LEFT_MIXER_ROUTING,
		0, 1, 0),
};

static const struct snd_kcontrol_new dsp1txr[] = {
SOC_DAPM_SINGLE("IN1 Switch", WM8915_DSP1_TX_RIGHT_MIXER_ROUTING,
		1, 1, 0),
SOC_DAPM_SINGLE("DAC Switch", WM8915_DSP1_TX_RIGHT_MIXER_ROUTING,
		0, 1, 0),
};

static const struct snd_kcontrol_new dsp2txl[] = {
SOC_DAPM_SINGLE("IN1 Switch", WM8915_DSP2_TX_LEFT_MIXER_ROUTING,
		1, 1, 0),
SOC_DAPM_SINGLE("DAC Switch", WM8915_DSP2_TX_LEFT_MIXER_ROUTING,
		0, 1, 0),
};

static const struct snd_kcontrol_new dsp2txr[] = {
SOC_DAPM_SINGLE("IN1 Switch", WM8915_DSP2_TX_RIGHT_MIXER_ROUTING,
		1, 1, 0),
SOC_DAPM_SINGLE("DAC Switch", WM8915_DSP2_TX_RIGHT_MIXER_ROUTING,
		0, 1, 0),
};


static const struct snd_soc_dapm_widget wm8915_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("IN1LN"),
SND_SOC_DAPM_INPUT("IN1LP"),
SND_SOC_DAPM_INPUT("IN1RN"),
SND_SOC_DAPM_INPUT("IN1RP"),

SND_SOC_DAPM_INPUT("IN2LN"),
SND_SOC_DAPM_INPUT("IN2LP"),
SND_SOC_DAPM_INPUT("IN2RN"),
SND_SOC_DAPM_INPUT("IN2RP"),

SND_SOC_DAPM_INPUT("DMIC1DAT"),
SND_SOC_DAPM_INPUT("DMIC2DAT"),

SND_SOC_DAPM_SUPPLY_S("SYSCLK", 1, WM8915_AIF_CLOCKING_1, 0, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("SYSDSPCLK", 2, WM8915_CLOCKING_1, 1, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("AIFCLK", 2, WM8915_CLOCKING_1, 2, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY_S("Charge Pump", 2, WM8915_CHARGE_PUMP_1, 15, 0, cp_event,
		      SND_SOC_DAPM_POST_PMU),

SND_SOC_DAPM_SUPPLY("LDO2", WM8915_POWER_MANAGEMENT_2, 1, 0, NULL, 0),
SND_SOC_DAPM_MICBIAS("MICB2", WM8915_POWER_MANAGEMENT_1, 9, 0),
SND_SOC_DAPM_MICBIAS("MICB1", WM8915_POWER_MANAGEMENT_1, 8, 0),

SND_SOC_DAPM_PGA("IN1L PGA", WM8915_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
SND_SOC_DAPM_PGA("IN1R PGA", WM8915_POWER_MANAGEMENT_2, 4, 0, NULL, 0),

SND_SOC_DAPM_MUX("IN1L Mux", SND_SOC_NOPM, 0, 0, &in1_mux),
SND_SOC_DAPM_MUX("IN1R Mux", SND_SOC_NOPM, 0, 0, &in1_mux),
SND_SOC_DAPM_MUX("IN2L Mux", SND_SOC_NOPM, 0, 0, &in2_mux),
SND_SOC_DAPM_MUX("IN2R Mux", SND_SOC_NOPM, 0, 0, &in2_mux),

SND_SOC_DAPM_PGA("IN1L", WM8915_POWER_MANAGEMENT_7, 2, 0, NULL, 0),
SND_SOC_DAPM_PGA("IN1R", WM8915_POWER_MANAGEMENT_7, 3, 0, NULL, 0),
SND_SOC_DAPM_PGA("IN2L", WM8915_POWER_MANAGEMENT_7, 6, 0, NULL, 0),
SND_SOC_DAPM_PGA("IN2R", WM8915_POWER_MANAGEMENT_7, 7, 0, NULL, 0),

SND_SOC_DAPM_SUPPLY("DMIC2", WM8915_POWER_MANAGEMENT_7, 9, 0, NULL, 0),
SND_SOC_DAPM_SUPPLY("DMIC1", WM8915_POWER_MANAGEMENT_7, 8, 0, NULL, 0),

SND_SOC_DAPM_ADC("DMIC2L", NULL, WM8915_POWER_MANAGEMENT_3, 5, 0),
SND_SOC_DAPM_ADC("DMIC2R", NULL, WM8915_POWER_MANAGEMENT_3, 4, 0),
SND_SOC_DAPM_ADC("DMIC1L", NULL, WM8915_POWER_MANAGEMENT_3, 3, 0),
SND_SOC_DAPM_ADC("DMIC1R", NULL, WM8915_POWER_MANAGEMENT_3, 2, 0),

SND_SOC_DAPM_ADC("ADCL", NULL, WM8915_POWER_MANAGEMENT_3, 1, 0),
SND_SOC_DAPM_ADC("ADCR", NULL, WM8915_POWER_MANAGEMENT_3, 0, 0),

SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &left_sidetone),
SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &right_sidetone),

SND_SOC_DAPM_AIF_IN("DSP2RXL", NULL, 0, WM8915_POWER_MANAGEMENT_3, 11, 0),
SND_SOC_DAPM_AIF_IN("DSP2RXR", NULL, 1, WM8915_POWER_MANAGEMENT_3, 10, 0),
SND_SOC_DAPM_AIF_IN("DSP1RXL", NULL, 0, WM8915_POWER_MANAGEMENT_3, 9, 0),
SND_SOC_DAPM_AIF_IN("DSP1RXR", NULL, 1, WM8915_POWER_MANAGEMENT_3, 8, 0),

SND_SOC_DAPM_MIXER("DSP2TXL", WM8915_POWER_MANAGEMENT_5, 11, 0,
		   dsp2txl, ARRAY_SIZE(dsp2txl)),
SND_SOC_DAPM_MIXER("DSP2TXR", WM8915_POWER_MANAGEMENT_5, 10, 0,
		   dsp2txr, ARRAY_SIZE(dsp2txr)),
SND_SOC_DAPM_MIXER("DSP1TXL", WM8915_POWER_MANAGEMENT_5, 9, 0,
		   dsp1txl, ARRAY_SIZE(dsp1txl)),
SND_SOC_DAPM_MIXER("DSP1TXR", WM8915_POWER_MANAGEMENT_5, 8, 0,
		   dsp1txr, ARRAY_SIZE(dsp1txr)),

SND_SOC_DAPM_MIXER("DAC2L Mixer", SND_SOC_NOPM, 0, 0,
		   dac2l_mix, ARRAY_SIZE(dac2l_mix)),
SND_SOC_DAPM_MIXER("DAC2R Mixer", SND_SOC_NOPM, 0, 0,
		   dac2r_mix, ARRAY_SIZE(dac2r_mix)),
SND_SOC_DAPM_MIXER("DAC1L Mixer", SND_SOC_NOPM, 0, 0,
		   dac1l_mix, ARRAY_SIZE(dac1l_mix)),
SND_SOC_DAPM_MIXER("DAC1R Mixer", SND_SOC_NOPM, 0, 0,
		   dac1r_mix, ARRAY_SIZE(dac1r_mix)),

SND_SOC_DAPM_DAC("DAC2L", NULL, WM8915_POWER_MANAGEMENT_5, 3, 0),
SND_SOC_DAPM_DAC("DAC2R", NULL, WM8915_POWER_MANAGEMENT_5, 2, 0),
SND_SOC_DAPM_DAC("DAC1L", NULL, WM8915_POWER_MANAGEMENT_5, 1, 0),
SND_SOC_DAPM_DAC("DAC1R", NULL, WM8915_POWER_MANAGEMENT_5, 0, 0),

SND_SOC_DAPM_AIF_IN("AIF2RX1", "AIF2 Playback", 1,
		    WM8915_POWER_MANAGEMENT_4, 9, 0),
SND_SOC_DAPM_AIF_IN("AIF2RX0", "AIF2 Playback", 2,
		    WM8915_POWER_MANAGEMENT_4, 8, 0),

SND_SOC_DAPM_AIF_IN("AIF2TX1", "AIF2 Capture", 1,
		    WM8915_POWER_MANAGEMENT_6, 9, 0),
SND_SOC_DAPM_AIF_IN("AIF2TX0", "AIF2 Capture", 2,
		    WM8915_POWER_MANAGEMENT_6, 8, 0),

SND_SOC_DAPM_AIF_IN("AIF1RX5", "AIF1 Playback", 5,
		    WM8915_POWER_MANAGEMENT_4, 5, 0),
SND_SOC_DAPM_AIF_IN("AIF1RX4", "AIF1 Playback", 4,
		    WM8915_POWER_MANAGEMENT_4, 4, 0),
SND_SOC_DAPM_AIF_IN("AIF1RX3", "AIF1 Playback", 3,
		    WM8915_POWER_MANAGEMENT_4, 3, 0),
SND_SOC_DAPM_AIF_IN("AIF1RX2", "AIF1 Playback", 2,
		    WM8915_POWER_MANAGEMENT_4, 2, 0),
SND_SOC_DAPM_AIF_IN("AIF1RX1", "AIF1 Playback", 1,
		    WM8915_POWER_MANAGEMENT_4, 1, 0),
SND_SOC_DAPM_AIF_IN("AIF1RX0", "AIF1 Playback", 0,
		    WM8915_POWER_MANAGEMENT_4, 0, 0),

SND_SOC_DAPM_AIF_OUT("AIF1TX5", "AIF1 Capture", 5,
		     WM8915_POWER_MANAGEMENT_6, 5, 0),
SND_SOC_DAPM_AIF_OUT("AIF1TX4", "AIF1 Capture", 4,
		     WM8915_POWER_MANAGEMENT_6, 4, 0),
SND_SOC_DAPM_AIF_OUT("AIF1TX3", "AIF1 Capture", 3,
		     WM8915_POWER_MANAGEMENT_6, 3, 0),
SND_SOC_DAPM_AIF_OUT("AIF1TX2", "AIF1 Capture", 2,
		     WM8915_POWER_MANAGEMENT_6, 2, 0),
SND_SOC_DAPM_AIF_OUT("AIF1TX1", "AIF1 Capture", 1,
		     WM8915_POWER_MANAGEMENT_6, 1, 0),
SND_SOC_DAPM_AIF_OUT("AIF1TX0", "AIF1 Capture", 0,
		     WM8915_POWER_MANAGEMENT_6, 0, 0),

/* We route as stereo pairs so define some dummy widgets to squash
 * things down for now.  RXA = 0,1, RXB = 2,3 and so on */
SND_SOC_DAPM_PGA("AIF1RXA", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("AIF1RXB", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("AIF1RXC", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("AIF2RX", SND_SOC_NOPM, 0, 0, NULL, 0),
SND_SOC_DAPM_PGA("DSP2TX", SND_SOC_NOPM, 0, 0, NULL, 0),

SND_SOC_DAPM_MUX("DSP1RX", SND_SOC_NOPM, 0, 0, &dsp1rx),
SND_SOC_DAPM_MUX("DSP2RX", SND_SOC_NOPM, 0, 0, &dsp2rx),
SND_SOC_DAPM_MUX("AIF2TX", SND_SOC_NOPM, 0, 0, &aif2tx),

SND_SOC_DAPM_MUX("SPKL", SND_SOC_NOPM, 0, 0, &spkl_mux),
SND_SOC_DAPM_MUX("SPKR", SND_SOC_NOPM, 0, 0, &spkr_mux),
SND_SOC_DAPM_PGA("SPKL PGA", WM8915_LEFT_PDM_SPEAKER, 4, 0, NULL, 0),
SND_SOC_DAPM_PGA("SPKR PGA", WM8915_RIGHT_PDM_SPEAKER, 4, 0, NULL, 0),

SND_SOC_DAPM_PGA_S("HPOUT2L PGA", 0, WM8915_POWER_MANAGEMENT_1, 7, 0, NULL, 0),
SND_SOC_DAPM_PGA_S("HPOUT2L_DLY", 1, WM8915_ANALOGUE_HP_2, 5, 0, NULL, 0),
SND_SOC_DAPM_PGA_S("HPOUT2L_DCS", 2, WM8915_DC_SERVO_1, 2, 0, dcs_start,
		   SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_PGA_S("HPOUT2L_OUTP", 3, WM8915_ANALOGUE_HP_2, 6, 0, NULL, 0),
SND_SOC_DAPM_PGA_S("HPOUT2L_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT2L, 0,
		   rmv_short_event,
		   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),

SND_SOC_DAPM_PGA_S("HPOUT2R PGA", 0, WM8915_POWER_MANAGEMENT_1, 6, 0,NULL, 0),
SND_SOC_DAPM_PGA_S("HPOUT2R_DLY", 1, WM8915_ANALOGUE_HP_2, 1, 0, NULL, 0),
SND_SOC_DAPM_PGA_S("HPOUT2R_DCS", 2, WM8915_DC_SERVO_1, 3, 0, dcs_start,
		   SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_PGA_S("HPOUT2R_OUTP", 3, WM8915_ANALOGUE_HP_2, 2, 0, NULL, 0),
SND_SOC_DAPM_PGA_S("HPOUT2R_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT2R, 0,
		   rmv_short_event,
		   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),

SND_SOC_DAPM_PGA_S("HPOUT1L PGA", 0, WM8915_POWER_MANAGEMENT_1, 5, 0, NULL, 0),
SND_SOC_DAPM_PGA_S("HPOUT1L_DLY", 1, WM8915_ANALOGUE_HP_1, 5, 0, NULL, 0),
SND_SOC_DAPM_PGA_S("HPOUT1L_DCS", 2, WM8915_DC_SERVO_1, 0, 0, dcs_start,
		   SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_PGA_S("HPOUT1L_OUTP", 3, WM8915_ANALOGUE_HP_1, 6, 0, NULL, 0),
SND_SOC_DAPM_PGA_S("HPOUT1L_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT1L, 0,
		   rmv_short_event,
		   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),

SND_SOC_DAPM_PGA_S("HPOUT1R PGA", 0, WM8915_POWER_MANAGEMENT_1, 4, 0, NULL, 0),
SND_SOC_DAPM_PGA_S("HPOUT1R_DLY", 1, WM8915_ANALOGUE_HP_1, 1, 0, NULL, 0),
SND_SOC_DAPM_PGA_S("HPOUT1R_DCS", 2, WM8915_DC_SERVO_1, 1, 0, dcs_start,
		   SND_SOC_DAPM_POST_PMU),
SND_SOC_DAPM_PGA_S("HPOUT1R_OUTP", 3, WM8915_ANALOGUE_HP_1, 2, 0, NULL, 0),
SND_SOC_DAPM_PGA_S("HPOUT1R_RMV_SHORT", 3, SND_SOC_NOPM, HPOUT1R, 0,
		   rmv_short_event,
		   SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),

SND_SOC_DAPM_OUTPUT("HPOUT1L"),
SND_SOC_DAPM_OUTPUT("HPOUT1R"),
SND_SOC_DAPM_OUTPUT("HPOUT2L"),
SND_SOC_DAPM_OUTPUT("HPOUT2R"),
SND_SOC_DAPM_OUTPUT("SPKDAT"),
};

static const struct snd_soc_dapm_route wm8915_dapm_routes[] = {
	{ "AIFCLK", NULL, "SYSCLK" },
	{ "SYSDSPCLK", NULL, "SYSCLK" },
	{ "Charge Pump", NULL, "SYSCLK" },

	{ "MICB1", NULL, "LDO2" },
	{ "MICB2", NULL, "LDO2" },

	{ "IN1L PGA", NULL, "IN2LN" },
	{ "IN1L PGA", NULL, "IN2LP" },
	{ "IN1L PGA", NULL, "IN1LN" },
	{ "IN1L PGA", NULL, "IN1LP" },

	{ "IN1R PGA", NULL, "IN2RN" },
	{ "IN1R PGA", NULL, "IN2RP" },
	{ "IN1R PGA", NULL, "IN1RN" },
	{ "IN1R PGA", NULL, "IN1RP" },

	{ "ADCL", NULL, "IN1L PGA" },

	{ "ADCR", NULL, "IN1R PGA" },

	{ "DMIC1L", NULL, "DMIC1DAT" },
	{ "DMIC1R", NULL, "DMIC1DAT" },
	{ "DMIC2L", NULL, "DMIC2DAT" },
	{ "DMIC2R", NULL, "DMIC2DAT" },

	{ "DMIC2L", NULL, "DMIC2" },
	{ "DMIC2R", NULL, "DMIC2" },
	{ "DMIC1L", NULL, "DMIC1" },
	{ "DMIC1R", NULL, "DMIC1" },

	{ "IN1L Mux", "ADC", "ADCL" },
	{ "IN1L Mux", "DMIC1", "DMIC1L" },
	{ "IN1L Mux", "DMIC2", "DMIC2L" },

	{ "IN1R Mux", "ADC", "ADCR" },
	{ "IN1R Mux", "DMIC1", "DMIC1R" },
	{ "IN1R Mux", "DMIC2", "DMIC2R" },

	{ "IN2L Mux", "ADC", "ADCL" },
	{ "IN2L Mux", "DMIC1", "DMIC1L" },
	{ "IN2L Mux", "DMIC2", "DMIC2L" },

	{ "IN2R Mux", "ADC", "ADCR" },
	{ "IN2R Mux", "DMIC1", "DMIC1R" },
	{ "IN2R Mux", "DMIC2", "DMIC2R" },

	{ "Left Sidetone", "IN1", "IN1L Mux" },
	{ "Left Sidetone", "IN2", "IN2L Mux" },

	{ "Right Sidetone", "IN1", "IN1R Mux" },
	{ "Right Sidetone", "IN2", "IN2R Mux" },

	{ "DSP1TXL", "IN1 Switch", "IN1L Mux" },
	{ "DSP1TXR", "IN1 Switch", "IN1R Mux" },

	{ "DSP2TXL", "IN1 Switch", "IN2L Mux" },
	{ "DSP2TXR", "IN1 Switch", "IN2R Mux" },

	{ "AIF1TX0", NULL, "DSP1TXL" },
	{ "AIF1TX1", NULL, "DSP1TXR" },
	{ "AIF1TX2", NULL, "DSP2TXL" },
	{ "AIF1TX3", NULL, "DSP2TXR" },
	{ "AIF1TX4", NULL, "AIF2RX0" },
	{ "AIF1TX5", NULL, "AIF2RX1" },

	{ "AIF1RX0", NULL, "AIFCLK" },
	{ "AIF1RX1", NULL, "AIFCLK" },
	{ "AIF1RX2", NULL, "AIFCLK" },
	{ "AIF1RX3", NULL, "AIFCLK" },
	{ "AIF1RX4", NULL, "AIFCLK" },
	{ "AIF1RX5", NULL, "AIFCLK" },

	{ "AIF2RX0", NULL, "AIFCLK" },
	{ "AIF2RX1", NULL, "AIFCLK" },

	{ "DSP1RXL", NULL, "SYSDSPCLK" },
	{ "DSP1RXR", NULL, "SYSDSPCLK" },
	{ "DSP2RXL", NULL, "SYSDSPCLK" },
	{ "DSP2RXR", NULL, "SYSDSPCLK" },
	{ "DSP1TXL", NULL, "SYSDSPCLK" },
	{ "DSP1TXR", NULL, "SYSDSPCLK" },
	{ "DSP2TXL", NULL, "SYSDSPCLK" },
	{ "DSP2TXR", NULL, "SYSDSPCLK" },

	{ "AIF1RXA", NULL, "AIF1RX0" },
	{ "AIF1RXA", NULL, "AIF1RX1" },
	{ "AIF1RXB", NULL, "AIF1RX2" },
	{ "AIF1RXB", NULL, "AIF1RX3" },
	{ "AIF1RXC", NULL, "AIF1RX4" },
	{ "AIF1RXC", NULL, "AIF1RX5" },

	{ "AIF2RX", NULL, "AIF2RX0" },
	{ "AIF2RX", NULL, "AIF2RX1" },

	{ "AIF2TX", "DSP2", "DSP2TX" },
	{ "AIF2TX", "DSP1", "DSP1RX" },
	{ "AIF2TX", "AIF1", "AIF1RXC" },

	{ "DSP1RXL", NULL, "DSP1RX" },
	{ "DSP1RXR", NULL, "DSP1RX" },
	{ "DSP2RXL", NULL, "DSP2RX" },
	{ "DSP2RXR", NULL, "DSP2RX" },

	{ "DSP2TX", NULL, "DSP2TXL" },
	{ "DSP2TX", NULL, "DSP2TXR" },

	{ "DSP1RX", "AIF1", "AIF1RXA" },
	{ "DSP1RX", "AIF2", "AIF2RX" },

	{ "DSP2RX", "AIF1", "AIF1RXB" },
	{ "DSP2RX", "AIF2", "AIF2RX" },

	{ "DAC2L Mixer", "DSP2 Switch", "DSP2RXL" },
	{ "DAC2L Mixer", "DSP1 Switch", "DSP1RXL" },
	{ "DAC2L Mixer", "Right Sidetone Switch", "Right Sidetone" },
	{ "DAC2L Mixer", "Left Sidetone Switch", "Left Sidetone" },

	{ "DAC2R Mixer", "DSP2 Switch", "DSP2RXR" },
	{ "DAC2R Mixer", "DSP1 Switch", "DSP1RXR" },
	{ "DAC2R Mixer", "Right Sidetone Switch", "Right Sidetone" },
	{ "DAC2R Mixer", "Left Sidetone Switch", "Left Sidetone" },

	{ "DAC1L Mixer", "DSP2 Switch", "DSP2RXL" },
	{ "DAC1L Mixer", "DSP1 Switch", "DSP1RXL" },
	{ "DAC1L Mixer", "Right Sidetone Switch", "Right Sidetone" },
	{ "DAC1L Mixer", "Left Sidetone Switch", "Left Sidetone" },

	{ "DAC1R Mixer", "DSP2 Switch", "DSP2RXR" },
	{ "DAC1R Mixer", "DSP1 Switch", "DSP1RXR" },
	{ "DAC1R Mixer", "Right Sidetone Switch", "Right Sidetone" },
	{ "DAC1R Mixer", "Left Sidetone Switch", "Left Sidetone" },

	{ "DAC1L", NULL, "DAC1L Mixer" },
	{ "DAC1R", NULL, "DAC1R Mixer" },
	{ "DAC2L", NULL, "DAC2L Mixer" },
	{ "DAC2R", NULL, "DAC2R Mixer" },

	{ "HPOUT2L PGA", NULL, "Charge Pump" },
	{ "HPOUT2L PGA", NULL, "DAC2L" },
	{ "HPOUT2L_DLY", NULL, "HPOUT2L PGA" },
	{ "HPOUT2L_DCS", NULL, "HPOUT2L_DLY" },
	{ "HPOUT2L_OUTP", NULL, "HPOUT2L_DCS" },
	{ "HPOUT2L_RMV_SHORT", NULL, "HPOUT2L_OUTP" },

	{ "HPOUT2R PGA", NULL, "Charge Pump" },
	{ "HPOUT2R PGA", NULL, "DAC2R" },
	{ "HPOUT2R_DLY", NULL, "HPOUT2R PGA" },
	{ "HPOUT2R_DCS", NULL, "HPOUT2R_DLY" },
	{ "HPOUT2R_OUTP", NULL, "HPOUT2R_DCS" },
	{ "HPOUT2R_RMV_SHORT", NULL, "HPOUT2R_OUTP" },

	{ "HPOUT1L PGA", NULL, "Charge Pump" },
	{ "HPOUT1L PGA", NULL, "DAC1L" },
	{ "HPOUT1L_DLY", NULL, "HPOUT1L PGA" },
	{ "HPOUT1L_DCS", NULL, "HPOUT1L_DLY" },
	{ "HPOUT1L_OUTP", NULL, "HPOUT1L_DCS" },
	{ "HPOUT1L_RMV_SHORT", NULL, "HPOUT1L_OUTP" },

	{ "HPOUT1R PGA", NULL, "Charge Pump" },
	{ "HPOUT1R PGA", NULL, "DAC1R" },
	{ "HPOUT1R_DLY", NULL, "HPOUT1R PGA" },
	{ "HPOUT1R_DCS", NULL, "HPOUT1R_DLY" },
	{ "HPOUT1R_OUTP", NULL, "HPOUT1R_DCS" },
	{ "HPOUT1R_RMV_SHORT", NULL, "HPOUT1R_OUTP" },

	{ "HPOUT2L", NULL, "HPOUT2L_RMV_SHORT" },
	{ "HPOUT2R", NULL, "HPOUT2R_RMV_SHORT" },
	{ "HPOUT1L", NULL, "HPOUT1L_RMV_SHORT" },
	{ "HPOUT1R", NULL, "HPOUT1R_RMV_SHORT" },

	{ "SPKL", "DAC1L", "DAC1L" },
	{ "SPKL", "DAC1R", "DAC1R" },
	{ "SPKL", "DAC2L", "DAC2L" },
	{ "SPKL", "DAC2R", "DAC2R" },

	{ "SPKR", "DAC1L", "DAC1L" },
	{ "SPKR", "DAC1R", "DAC1R" },
	{ "SPKR", "DAC2L", "DAC2L" },
	{ "SPKR", "DAC2R", "DAC2R" },

	{ "SPKL PGA", NULL, "SPKL" },
	{ "SPKR PGA", NULL, "SPKR" },

	{ "SPKDAT", NULL, "SPKL PGA" },
	{ "SPKDAT", NULL, "SPKR PGA" },
};

static int wm8915_readable_register(struct snd_soc_codec *codec,
				    unsigned int reg)
{
	/* Due to the sparseness of the register map the compiler
	 * output from an explicit switch statement ends up being much
	 * more efficient than a table.
	 */
	switch (reg) {
	case WM8915_SOFTWARE_RESET:
	case WM8915_POWER_MANAGEMENT_1:
	case WM8915_POWER_MANAGEMENT_2:
	case WM8915_POWER_MANAGEMENT_3:
	case WM8915_POWER_MANAGEMENT_4:
	case WM8915_POWER_MANAGEMENT_5:
	case WM8915_POWER_MANAGEMENT_6:
	case WM8915_POWER_MANAGEMENT_7:
	case WM8915_POWER_MANAGEMENT_8:
	case WM8915_LEFT_LINE_INPUT_VOLUME:
	case WM8915_RIGHT_LINE_INPUT_VOLUME:
	case WM8915_LINE_INPUT_CONTROL:
	case WM8915_DAC1_HPOUT1_VOLUME:
	case WM8915_DAC2_HPOUT2_VOLUME:
	case WM8915_DAC1_LEFT_VOLUME:
	case WM8915_DAC1_RIGHT_VOLUME:
	case WM8915_DAC2_LEFT_VOLUME:
	case WM8915_DAC2_RIGHT_VOLUME:
	case WM8915_OUTPUT1_LEFT_VOLUME:
	case WM8915_OUTPUT1_RIGHT_VOLUME:
	case WM8915_OUTPUT2_LEFT_VOLUME:
	case WM8915_OUTPUT2_RIGHT_VOLUME:
	case WM8915_MICBIAS_1:
	case WM8915_MICBIAS_2:
	case WM8915_LDO_1:
	case WM8915_LDO_2:
	case WM8915_ACCESSORY_DETECT_MODE_1:
	case WM8915_ACCESSORY_DETECT_MODE_2:
	case WM8915_HEADPHONE_DETECT_1:
	case WM8915_HEADPHONE_DETECT_2:
	case WM8915_MIC_DETECT_1:
	case WM8915_MIC_DETECT_2:
	case WM8915_MIC_DETECT_3:
	case WM8915_CHARGE_PUMP_1:
	case WM8915_CHARGE_PUMP_2:
	case WM8915_DC_SERVO_1:
	case WM8915_DC_SERVO_2:
	case WM8915_DC_SERVO_3:
	case WM8915_DC_SERVO_5:
	case WM8915_DC_SERVO_6:
	case WM8915_DC_SERVO_7:
	case WM8915_DC_SERVO_READBACK_0:
	case WM8915_ANALOGUE_HP_1:
	case WM8915_ANALOGUE_HP_2:
	case WM8915_CHIP_REVISION:
	case WM8915_CONTROL_INTERFACE_1:
	case WM8915_WRITE_SEQUENCER_CTRL_1:
	case WM8915_WRITE_SEQUENCER_CTRL_2:
	case WM8915_AIF_CLOCKING_1:
	case WM8915_AIF_CLOCKING_2:
	case WM8915_CLOCKING_1:
	case WM8915_CLOCKING_2:
	case WM8915_AIF_RATE:
	case WM8915_FLL_CONTROL_1:
	case WM8915_FLL_CONTROL_2:
	case WM8915_FLL_CONTROL_3:
	case WM8915_FLL_CONTROL_4:
	case WM8915_FLL_CONTROL_5:
	case WM8915_FLL_CONTROL_6:
	case WM8915_FLL_EFS_1:
	case WM8915_FLL_EFS_2:
	case WM8915_AIF1_CONTROL:
	case WM8915_AIF1_BCLK:
	case WM8915_AIF1_TX_LRCLK_1:
	case WM8915_AIF1_TX_LRCLK_2:
	case WM8915_AIF1_RX_LRCLK_1:
	case WM8915_AIF1_RX_LRCLK_2:
	case WM8915_AIF1TX_DATA_CONFIGURATION_1:
	case WM8915_AIF1TX_DATA_CONFIGURATION_2:
	case WM8915_AIF1RX_DATA_CONFIGURATION:
	case WM8915_AIF1TX_CHANNEL_0_CONFIGURATION:
	case WM8915_AIF1TX_CHANNEL_1_CONFIGURATION:
	case WM8915_AIF1TX_CHANNEL_2_CONFIGURATION:
	case WM8915_AIF1TX_CHANNEL_3_CONFIGURATION:
	case WM8915_AIF1TX_CHANNEL_4_CONFIGURATION:
	case WM8915_AIF1TX_CHANNEL_5_CONFIGURATION:
	case WM8915_AIF1RX_CHANNEL_0_CONFIGURATION:
	case WM8915_AIF1RX_CHANNEL_1_CONFIGURATION:
	case WM8915_AIF1RX_CHANNEL_2_CONFIGURATION:
	case WM8915_AIF1RX_CHANNEL_3_CONFIGURATION:
	case WM8915_AIF1RX_CHANNEL_4_CONFIGURATION:
	case WM8915_AIF1RX_CHANNEL_5_CONFIGURATION:
	case WM8915_AIF1RX_MONO_CONFIGURATION:
	case WM8915_AIF1TX_TEST:
	case WM8915_AIF2_CONTROL:
	case WM8915_AIF2_BCLK:
	case WM8915_AIF2_TX_LRCLK_1:
	case WM8915_AIF2_TX_LRCLK_2:
	case WM8915_AIF2_RX_LRCLK_1:
	case WM8915_AIF2_RX_LRCLK_2:
	case WM8915_AIF2TX_DATA_CONFIGURATION_1:
	case WM8915_AIF2TX_DATA_CONFIGURATION_2:
	case WM8915_AIF2RX_DATA_CONFIGURATION:
	case WM8915_AIF2TX_CHANNEL_0_CONFIGURATION:
	case WM8915_AIF2TX_CHANNEL_1_CONFIGURATION:
	case WM8915_AIF2RX_CHANNEL_0_CONFIGURATION:
	case WM8915_AIF2RX_CHANNEL_1_CONFIGURATION:
	case WM8915_AIF2RX_MONO_CONFIGURATION:
	case WM8915_AIF2TX_TEST:
	case WM8915_DSP1_TX_LEFT_VOLUME:
	case WM8915_DSP1_TX_RIGHT_VOLUME:
	case WM8915_DSP1_RX_LEFT_VOLUME:
	case WM8915_DSP1_RX_RIGHT_VOLUME:
	case WM8915_DSP1_TX_FILTERS:
	case WM8915_DSP1_RX_FILTERS_1:
	case WM8915_DSP1_RX_FILTERS_2:
	case WM8915_DSP1_DRC_1:
	case WM8915_DSP1_DRC_2:
	case WM8915_DSP1_DRC_3:
	case WM8915_DSP1_DRC_4:
	case WM8915_DSP1_DRC_5:
	case WM8915_DSP1_RX_EQ_GAINS_1:
	case WM8915_DSP1_RX_EQ_GAINS_2:
	case WM8915_DSP1_RX_EQ_BAND_1_A:
	case WM8915_DSP1_RX_EQ_BAND_1_B:
	case WM8915_DSP1_RX_EQ_BAND_1_PG:
	case WM8915_DSP1_RX_EQ_BAND_2_A:
	case WM8915_DSP1_RX_EQ_BAND_2_B:
	case WM8915_DSP1_RX_EQ_BAND_2_C:
	case WM8915_DSP1_RX_EQ_BAND_2_PG:
	case WM8915_DSP1_RX_EQ_BAND_3_A:
	case WM8915_DSP1_RX_EQ_BAND_3_B:
	case WM8915_DSP1_RX_EQ_BAND_3_C:
	case WM8915_DSP1_RX_EQ_BAND_3_PG:
	case WM8915_DSP1_RX_EQ_BAND_4_A:
	case WM8915_DSP1_RX_EQ_BAND_4_B:
	case WM8915_DSP1_RX_EQ_BAND_4_C:
	case WM8915_DSP1_RX_EQ_BAND_4_PG:
	case WM8915_DSP1_RX_EQ_BAND_5_A:
	case WM8915_DSP1_RX_EQ_BAND_5_B:
	case WM8915_DSP1_RX_EQ_BAND_5_PG:
	case WM8915_DSP2_TX_LEFT_VOLUME:
	case WM8915_DSP2_TX_RIGHT_VOLUME:
	case WM8915_DSP2_RX_LEFT_VOLUME:
	case WM8915_DSP2_RX_RIGHT_VOLUME:
	case WM8915_DSP2_TX_FILTERS:
	case WM8915_DSP2_RX_FILTERS_1:
	case WM8915_DSP2_RX_FILTERS_2:
	case WM8915_DSP2_DRC_1:
	case WM8915_DSP2_DRC_2:
	case WM8915_DSP2_DRC_3:
	case WM8915_DSP2_DRC_4:
	case WM8915_DSP2_DRC_5:
	case WM8915_DSP2_RX_EQ_GAINS_1:
	case WM8915_DSP2_RX_EQ_GAINS_2:
	case WM8915_DSP2_RX_EQ_BAND_1_A:
	case WM8915_DSP2_RX_EQ_BAND_1_B:
	case WM8915_DSP2_RX_EQ_BAND_1_PG:
	case WM8915_DSP2_RX_EQ_BAND_2_A:
	case WM8915_DSP2_RX_EQ_BAND_2_B:
	case WM8915_DSP2_RX_EQ_BAND_2_C:
	case WM8915_DSP2_RX_EQ_BAND_2_PG:
	case WM8915_DSP2_RX_EQ_BAND_3_A:
	case WM8915_DSP2_RX_EQ_BAND_3_B:
	case WM8915_DSP2_RX_EQ_BAND_3_C:
	case WM8915_DSP2_RX_EQ_BAND_3_PG:
	case WM8915_DSP2_RX_EQ_BAND_4_A:
	case WM8915_DSP2_RX_EQ_BAND_4_B:
	case WM8915_DSP2_RX_EQ_BAND_4_C:
	case WM8915_DSP2_RX_EQ_BAND_4_PG:
	case WM8915_DSP2_RX_EQ_BAND_5_A:
	case WM8915_DSP2_RX_EQ_BAND_5_B:
	case WM8915_DSP2_RX_EQ_BAND_5_PG:
	case WM8915_DAC1_MIXER_VOLUMES:
	case WM8915_DAC1_LEFT_MIXER_ROUTING:
	case WM8915_DAC1_RIGHT_MIXER_ROUTING:
	case WM8915_DAC2_MIXER_VOLUMES:
	case WM8915_DAC2_LEFT_MIXER_ROUTING:
	case WM8915_DAC2_RIGHT_MIXER_ROUTING:
	case WM8915_DSP1_TX_LEFT_MIXER_ROUTING:
	case WM8915_DSP1_TX_RIGHT_MIXER_ROUTING:
	case WM8915_DSP2_TX_LEFT_MIXER_ROUTING:
	case WM8915_DSP2_TX_RIGHT_MIXER_ROUTING:
	case WM8915_DSP_TX_MIXER_SELECT:
	case WM8915_DAC_SOFTMUTE:
	case WM8915_OVERSAMPLING:
	case WM8915_SIDETONE:
	case WM8915_GPIO_1:
	case WM8915_GPIO_2:
	case WM8915_GPIO_3:
	case WM8915_GPIO_4:
	case WM8915_GPIO_5:
	case WM8915_PULL_CONTROL_1:
	case WM8915_PULL_CONTROL_2:
	case WM8915_INTERRUPT_STATUS_1:
	case WM8915_INTERRUPT_STATUS_2:
	case WM8915_INTERRUPT_RAW_STATUS_2:
	case WM8915_INTERRUPT_STATUS_1_MASK:
	case WM8915_INTERRUPT_STATUS_2_MASK:
	case WM8915_INTERRUPT_CONTROL:
	case WM8915_LEFT_PDM_SPEAKER:
	case WM8915_RIGHT_PDM_SPEAKER:
	case WM8915_PDM_SPEAKER_MUTE_SEQUENCE:
	case WM8915_PDM_SPEAKER_VOLUME:
		return 1;
	default:
		return 0;
	}
}

static int wm8915_volatile_register(struct snd_soc_codec *codec,
				    unsigned int reg)
{
	switch (reg) {
	case WM8915_SOFTWARE_RESET:
	case WM8915_CHIP_REVISION:
	case WM8915_LDO_1:
	case WM8915_LDO_2:
	case WM8915_INTERRUPT_STATUS_1:
	case WM8915_INTERRUPT_STATUS_2:
	case WM8915_INTERRUPT_RAW_STATUS_2:
	case WM8915_DC_SERVO_READBACK_0:
	case WM8915_DC_SERVO_2:
	case WM8915_DC_SERVO_6:
	case WM8915_DC_SERVO_7:
	case WM8915_FLL_CONTROL_6:
	case WM8915_MIC_DETECT_3:
	case WM8915_HEADPHONE_DETECT_1:
	case WM8915_HEADPHONE_DETECT_2:
		return 1;
	default:
		return 0;
	}
}

static int wm8915_reset(struct snd_soc_codec *codec)
{
	return snd_soc_write(codec, WM8915_SOFTWARE_RESET, 0x8915);
}

static const int bclk_divs[] = {
	1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96
};

static void wm8915_update_bclk(struct snd_soc_codec *codec)
{
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	int aif, best, cur_val, bclk_rate, bclk_reg, i;

	/* Don't bother if we're in a low frequency idle mode that
	 * can't support audio.
	 */
	if (wm8915->sysclk < 64000)
		return;

	for (aif = 0; aif < WM8915_AIFS; aif++) {
		switch (aif) {
		case 0:
			bclk_reg = WM8915_AIF1_BCLK;
			break;
		case 1:
			bclk_reg = WM8915_AIF2_BCLK;
			break;
		}

		bclk_rate = wm8915->bclk_rate[aif];

		/* Pick a divisor for BCLK as close as we can get to ideal */
		best = 0;
		for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
			cur_val = (wm8915->sysclk / bclk_divs[i]) - bclk_rate;
			if (cur_val < 0) /* BCLK table is sorted */
				break;
			best = i;
		}
		bclk_rate = wm8915->sysclk / bclk_divs[best];
		dev_dbg(codec->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n",
			bclk_divs[best], bclk_rate);

		snd_soc_update_bits(codec, bclk_reg,
				    WM8915_AIF1_BCLK_DIV_MASK, best);
	}
}

static int wm8915_set_bias_level(struct snd_soc_codec *codec,
				 enum snd_soc_bias_level level)
{
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	int ret;

	switch (level) {
	case SND_SOC_BIAS_ON:
		break;

	case SND_SOC_BIAS_PREPARE:
		if (codec->dapm.bias_level == SND_SOC_BIAS_STANDBY) {
			snd_soc_update_bits(codec, WM8915_POWER_MANAGEMENT_1,
					    WM8915_BG_ENA, WM8915_BG_ENA);
			msleep(2);
		}
		break;

	case SND_SOC_BIAS_STANDBY:
		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
			ret = regulator_bulk_enable(ARRAY_SIZE(wm8915->supplies),
						    wm8915->supplies);
			if (ret != 0) {
				dev_err(codec->dev,
					"Failed to enable supplies: %d\n",
					ret);
				return ret;
			}

			if (wm8915->pdata.ldo_ena >= 0) {
				gpio_set_value_cansleep(wm8915->pdata.ldo_ena,
							1);
				msleep(5);
			}

			codec->cache_only = false;
			snd_soc_cache_sync(codec);
		}

		snd_soc_update_bits(codec, WM8915_POWER_MANAGEMENT_1,
				    WM8915_BG_ENA, 0);
		break;

	case SND_SOC_BIAS_OFF:
		codec->cache_only = true;
		if (wm8915->pdata.ldo_ena >= 0)
			gpio_set_value_cansleep(wm8915->pdata.ldo_ena, 0);
		regulator_bulk_disable(ARRAY_SIZE(wm8915->supplies),
				       wm8915->supplies);
		break;
	}

	codec->dapm.bias_level = level;

	return 0;
}

static int wm8915_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
	struct snd_soc_codec *codec = dai->codec;
	int aifctrl = 0;
	int bclk = 0;
	int lrclk_tx = 0;
	int lrclk_rx = 0;
	int aifctrl_reg, bclk_reg, lrclk_tx_reg, lrclk_rx_reg;

	switch (dai->id) {
	case 0:
		aifctrl_reg = WM8915_AIF1_CONTROL;
		bclk_reg = WM8915_AIF1_BCLK;
		lrclk_tx_reg = WM8915_AIF1_TX_LRCLK_2;
		lrclk_rx_reg = WM8915_AIF1_RX_LRCLK_2;
		break;
	case 1:
		aifctrl_reg = WM8915_AIF2_CONTROL;
		bclk_reg = WM8915_AIF2_BCLK;
		lrclk_tx_reg = WM8915_AIF2_TX_LRCLK_2;
		lrclk_rx_reg = WM8915_AIF2_RX_LRCLK_2;
		break;
	default:
		BUG();
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_NB_NF:
		break;
	case SND_SOC_DAIFMT_IB_NF:
		bclk |= WM8915_AIF1_BCLK_INV;
		break;
	case SND_SOC_DAIFMT_NB_IF:
		lrclk_tx |= WM8915_AIF1TX_LRCLK_INV;
		lrclk_rx |= WM8915_AIF1RX_LRCLK_INV;
		break;
	case SND_SOC_DAIFMT_IB_IF:
		bclk |= WM8915_AIF1_BCLK_INV;
		lrclk_tx |= WM8915_AIF1TX_LRCLK_INV;
		lrclk_rx |= WM8915_AIF1RX_LRCLK_INV;
		break;
	}

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBS_CFS:
		break;
	case SND_SOC_DAIFMT_CBS_CFM:
		lrclk_tx |= WM8915_AIF1TX_LRCLK_MSTR;
		lrclk_rx |= WM8915_AIF1RX_LRCLK_MSTR;
		break;
	case SND_SOC_DAIFMT_CBM_CFS:
		bclk |= WM8915_AIF1_BCLK_MSTR;
		break;
	case SND_SOC_DAIFMT_CBM_CFM:
		bclk |= WM8915_AIF1_BCLK_MSTR;
		lrclk_tx |= WM8915_AIF1TX_LRCLK_MSTR;
		lrclk_rx |= WM8915_AIF1RX_LRCLK_MSTR;
		break;
	default:
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_DSP_A:
		break;
	case SND_SOC_DAIFMT_DSP_B:
		aifctrl |= 1;
		break;
	case SND_SOC_DAIFMT_I2S:
		aifctrl |= 2;
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		aifctrl |= 3;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_update_bits(codec, aifctrl_reg, WM8915_AIF1_FMT_MASK, aifctrl);
	snd_soc_update_bits(codec, bclk_reg,
			    WM8915_AIF1_BCLK_INV | WM8915_AIF1_BCLK_MSTR,
			    bclk);
	snd_soc_update_bits(codec, lrclk_tx_reg,
			    WM8915_AIF1TX_LRCLK_INV |
			    WM8915_AIF1TX_LRCLK_MSTR,
			    lrclk_tx);
	snd_soc_update_bits(codec, lrclk_rx_reg,
			    WM8915_AIF1RX_LRCLK_INV |
			    WM8915_AIF1RX_LRCLK_MSTR,
			    lrclk_rx);

	return 0;
}

static const int dsp_divs[] = {
	48000, 32000, 16000, 8000
};

static int wm8915_hw_params(struct snd_pcm_substream *substream,
			    struct snd_pcm_hw_params *params,
			    struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	int bits, i, bclk_rate;
	int aifdata = 0;
	int lrclk = 0;
	int dsp = 0;
	int aifdata_reg, lrclk_reg, dsp_shift;

	switch (dai->id) {
	case 0:
		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
		    (snd_soc_read(codec, WM8915_GPIO_1)) & WM8915_GP1_FN_MASK) {
			aifdata_reg = WM8915_AIF1RX_DATA_CONFIGURATION;
			lrclk_reg = WM8915_AIF1_RX_LRCLK_1;
		} else {
			aifdata_reg = WM8915_AIF1TX_DATA_CONFIGURATION_1;
			lrclk_reg = WM8915_AIF1_TX_LRCLK_1;
		}
		dsp_shift = 0;
		break;
	case 1:
		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK ||
		    (snd_soc_read(codec, WM8915_GPIO_2)) & WM8915_GP2_FN_MASK) {
			aifdata_reg = WM8915_AIF2RX_DATA_CONFIGURATION;
			lrclk_reg = WM8915_AIF2_RX_LRCLK_1;
		} else {
			aifdata_reg = WM8915_AIF2TX_DATA_CONFIGURATION_1;
			lrclk_reg = WM8915_AIF2_TX_LRCLK_1;
		}
		dsp_shift = WM8915_DSP2_DIV_SHIFT;
		break;
	default:
		BUG();
		return -EINVAL;
	}

	bclk_rate = snd_soc_params_to_bclk(params);
	if (bclk_rate < 0) {
		dev_err(codec->dev, "Unsupported BCLK rate: %d\n", bclk_rate);
		return bclk_rate;
	}

	wm8915->bclk_rate[dai->id] = bclk_rate;
	wm8915->rx_rate[dai->id] = params_rate(params);

	/* Needs looking at for TDM */
	bits = snd_pcm_format_width(params_format(params));
	if (bits < 0)
		return bits;
	aifdata |= (bits << WM8915_AIF1TX_WL_SHIFT) | bits;

	for (i = 0; i < ARRAY_SIZE(dsp_divs); i++) {
		if (dsp_divs[i] == params_rate(params))
			break;
	}
	if (i == ARRAY_SIZE(dsp_divs)) {
		dev_err(codec->dev, "Unsupported sample rate %dHz\n",
			params_rate(params));
		return -EINVAL;
	}
	dsp |= i << dsp_shift;

	wm8915_update_bclk(codec);

	lrclk = bclk_rate / params_rate(params);
	dev_dbg(dai->dev, "Using LRCLK rate %d for actual LRCLK %dHz\n",
		lrclk, bclk_rate / lrclk);

	snd_soc_update_bits(codec, aifdata_reg,
			    WM8915_AIF1TX_WL_MASK |
			    WM8915_AIF1TX_SLOT_LEN_MASK,
			    aifdata);
	snd_soc_update_bits(codec, lrclk_reg, WM8915_AIF1RX_RATE_MASK,
			    lrclk);
	snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_2,
			    WM8915_DSP1_DIV_SHIFT << dsp_shift, dsp);

	return 0;
}

static int wm8915_set_sysclk(struct snd_soc_dai *dai,
		int clk_id, unsigned int freq, int dir)
{
	struct snd_soc_codec *codec = dai->codec;
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	int lfclk = 0;
	int ratediv = 0;
	int src;
	int old;

	if (freq == wm8915->sysclk && clk_id == wm8915->sysclk_src)
		return 0;

	/* Disable SYSCLK while we reconfigure */
	old = snd_soc_read(codec, WM8915_AIF_CLOCKING_1) & WM8915_SYSCLK_ENA;
	snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1,
			    WM8915_SYSCLK_ENA, 0);

	switch (clk_id) {
	case WM8915_SYSCLK_MCLK1:
		wm8915->sysclk = freq;
		src = 0;
		break;
	case WM8915_SYSCLK_MCLK2:
		wm8915->sysclk = freq;
		src = 1;
		break;
	case WM8915_SYSCLK_FLL:
		wm8915->sysclk = freq;
		src = 2;
		break;
	default:
		dev_err(codec->dev, "Unsupported clock source %d\n", clk_id);
		return -EINVAL;
	}

	switch (wm8915->sysclk) {
	case 6144000:
		snd_soc_update_bits(codec, WM8915_AIF_RATE,
				    WM8915_SYSCLK_RATE, 0);
		break;
	case 24576000:
		ratediv = WM8915_SYSCLK_DIV;
	case 12288000:
		snd_soc_update_bits(codec, WM8915_AIF_RATE,
				    WM8915_SYSCLK_RATE, WM8915_SYSCLK_RATE);
		break;
	case 32000:
	case 32768:
		lfclk = WM8915_LFCLK_ENA;
		break;
	default:
		dev_warn(codec->dev, "Unsupported clock rate %dHz\n",
			 wm8915->sysclk);
		return -EINVAL;
	}

	wm8915_update_bclk(codec);

	snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1,
			    WM8915_SYSCLK_SRC_MASK | WM8915_SYSCLK_DIV_MASK,
			    src << WM8915_SYSCLK_SRC_SHIFT | ratediv);
	snd_soc_update_bits(codec, WM8915_CLOCKING_1, WM8915_LFCLK_ENA, lfclk);
	snd_soc_update_bits(codec, WM8915_AIF_CLOCKING_1,
			    WM8915_SYSCLK_ENA, old);

	wm8915->sysclk_src = clk_id;

	return 0;
}

struct _fll_div {
	u16 fll_fratio;
	u16 fll_outdiv;
	u16 fll_refclk_div;
	u16 fll_loop_gain;
	u16 fll_ref_freq;
	u16 n;
	u16 theta;
	u16 lambda;
};

static struct {
	unsigned int min;
	unsigned int max;
	u16 fll_fratio;
	int ratio;
} fll_fratios[] = {
	{       0,    64000, 4, 16 },
	{   64000,   128000, 3,  8 },
	{  128000,   256000, 2,  4 },
	{  256000,  1000000, 1,  2 },
	{ 1000000, 13500000, 0,  1 },
};

static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
		       unsigned int Fout)
{
	unsigned int target;
	unsigned int div;
	unsigned int fratio, gcd_fll;
	int i;

	/* Fref must be <=13.5MHz */
	div = 1;
	fll_div->fll_refclk_div = 0;
	while ((Fref / div) > 13500000) {
		div *= 2;
		fll_div->fll_refclk_div++;

		if (div > 8) {
			pr_err("Can't scale %dMHz input down to <=13.5MHz\n",
			       Fref);
			return -EINVAL;
		}
	}

	pr_debug("FLL Fref=%u Fout=%u\n", Fref, Fout);

	/* Apply the division for our remaining calculations */
	Fref /= div;

	if (Fref >= 3000000)
		fll_div->fll_loop_gain = 5;
	else
		fll_div->fll_loop_gain = 0;

	if (Fref >= 48000)
		fll_div->fll_ref_freq = 0;
	else
		fll_div->fll_ref_freq = 1;

	/* Fvco should be 90-100MHz; don't check the upper bound */
	div = 2;
	while (Fout * div < 90000000) {
		div++;
		if (div > 64) {
			pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
			       Fout);
			return -EINVAL;
		}
	}
	target = Fout * div;
	fll_div->fll_outdiv = div - 1;

	pr_debug("FLL Fvco=%dHz\n", target);

	/* Find an appropraite FLL_FRATIO and factor it out of the target */
	for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
		if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
			fll_div->fll_fratio = fll_fratios[i].fll_fratio;
			fratio = fll_fratios[i].ratio;
			break;
		}
	}
	if (i == ARRAY_SIZE(fll_fratios)) {
		pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref);
		return -EINVAL;
	}

	fll_div->n = target / (fratio * Fref);

	if (target % Fref == 0) {
		fll_div->theta = 0;
		fll_div->lambda = 0;
	} else {
		gcd_fll = gcd(target, fratio * Fref);

		fll_div->theta = (target - (fll_div->n * fratio * Fref))
			/ gcd_fll;
		fll_div->lambda = (fratio * Fref) / gcd_fll;
	}

	pr_debug("FLL N=%x THETA=%x LAMBDA=%x\n",
		 fll_div->n, fll_div->theta, fll_div->lambda);
	pr_debug("FLL_FRATIO=%x FLL_OUTDIV=%x FLL_REFCLK_DIV=%x\n",
		 fll_div->fll_fratio, fll_div->fll_outdiv,
		 fll_div->fll_refclk_div);

	return 0;
}

static int wm8915_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
			  unsigned int Fref, unsigned int Fout)
{
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	struct i2c_client *i2c = to_i2c_client(codec->dev);
	struct _fll_div fll_div;
	unsigned long timeout;
	int ret, reg;

	/* Any change? */
	if (source == wm8915->fll_src && Fref == wm8915->fll_fref &&
	    Fout == wm8915->fll_fout)
		return 0;

	if (Fout == 0) {
		dev_dbg(codec->dev, "FLL disabled\n");

		wm8915->fll_fref = 0;
		wm8915->fll_fout = 0;

		snd_soc_update_bits(codec, WM8915_FLL_CONTROL_1,
				    WM8915_FLL_ENA, 0);

		return 0;
	}

	ret = fll_factors(&fll_div, Fref, Fout);
	if (ret != 0)
		return ret;

	switch (source) {
	case WM8915_FLL_MCLK1:
		reg = 0;
		break;
	case WM8915_FLL_MCLK2:
		reg = 1;
		break;
	case WM8915_FLL_DACLRCLK1:
		reg = 2;
		break;
	case WM8915_FLL_BCLK1:
		reg = 3;
		break;
	default:
		dev_err(codec->dev, "Unknown FLL source %d\n", ret);
		return -EINVAL;
	}

	reg |= fll_div.fll_refclk_div << WM8915_FLL_REFCLK_DIV_SHIFT;
	reg |= fll_div.fll_ref_freq << WM8915_FLL_REF_FREQ_SHIFT;

	snd_soc_update_bits(codec, WM8915_FLL_CONTROL_5,
			    WM8915_FLL_REFCLK_DIV_MASK | WM8915_FLL_REF_FREQ |
			    WM8915_FLL_REFCLK_SRC_MASK, reg);

	reg = 0;
	if (fll_div.theta || fll_div.lambda)
		reg |= WM8915_FLL_EFS_ENA | (3 << WM8915_FLL_LFSR_SEL_SHIFT);
	else
		reg |= 1 << WM8915_FLL_LFSR_SEL_SHIFT;
	snd_soc_write(codec, WM8915_FLL_EFS_2, reg);

	snd_soc_update_bits(codec, WM8915_FLL_CONTROL_2,
			    WM8915_FLL_OUTDIV_MASK |
			    WM8915_FLL_FRATIO_MASK,
			    (fll_div.fll_outdiv << WM8915_FLL_OUTDIV_SHIFT) |
			    (fll_div.fll_fratio));

	snd_soc_write(codec, WM8915_FLL_CONTROL_3, fll_div.theta);

	snd_soc_update_bits(codec, WM8915_FLL_CONTROL_4,
			    WM8915_FLL_N_MASK | WM8915_FLL_LOOP_GAIN_MASK,
			    (fll_div.n << WM8915_FLL_N_SHIFT) |
			    fll_div.fll_loop_gain);

	snd_soc_write(codec, WM8915_FLL_EFS_1, fll_div.lambda);

	snd_soc_update_bits(codec, WM8915_FLL_CONTROL_1,
			    WM8915_FLL_ENA, WM8915_FLL_ENA);

	/* The FLL supports live reconfiguration - kick that in case we were
	 * already enabled.
	 */
	snd_soc_write(codec, WM8915_FLL_CONTROL_6, WM8915_FLL_SWITCH_CLK);

	/* Wait for the FLL to lock, using the interrupt if possible */
	if (Fref > 1000000)
		timeout = usecs_to_jiffies(300);
	else
		timeout = msecs_to_jiffies(2);

	/* Allow substantially longer if we've actually got the IRQ */
	if (i2c->irq)
		timeout *= 1000;

	ret = wait_for_completion_timeout(&wm8915->fll_lock, timeout);

	if (ret == 0 && i2c->irq) {
		dev_err(codec->dev, "Timed out waiting for FLL\n");
		ret = -ETIMEDOUT;
	} else {
		ret = 0;
	}

	dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);

	wm8915->fll_fref = Fref;
	wm8915->fll_fout = Fout;
	wm8915->fll_src = source;

	return ret;
}

#ifdef CONFIG_GPIOLIB
static inline struct wm8915_priv *gpio_to_wm8915(struct gpio_chip *chip)
{
	return container_of(chip, struct wm8915_priv, gpio_chip);
}

static void wm8915_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
{
	struct wm8915_priv *wm8915 = gpio_to_wm8915(chip);
	struct snd_soc_codec *codec = wm8915->codec;

	snd_soc_update_bits(codec, WM8915_GPIO_1 + offset,
			    WM8915_GP1_LVL, !!value << WM8915_GP1_LVL_SHIFT);
}

static int wm8915_gpio_direction_out(struct gpio_chip *chip,
				     unsigned offset, int value)
{
	struct wm8915_priv *wm8915 = gpio_to_wm8915(chip);
	struct snd_soc_codec *codec = wm8915->codec;
	int val;

	val = (1 << WM8915_GP1_FN_SHIFT) | (!!value << WM8915_GP1_LVL_SHIFT);

	return snd_soc_update_bits(codec, WM8915_GPIO_1 + offset,
				   WM8915_GP1_FN_MASK | WM8915_GP1_DIR |
				   WM8915_GP1_LVL, val);
}

static int wm8915_gpio_get(struct gpio_chip *chip, unsigned offset)
{
	struct wm8915_priv *wm8915 = gpio_to_wm8915(chip);
	struct snd_soc_codec *codec = wm8915->codec;
	int ret;

	ret = snd_soc_read(codec, WM8915_GPIO_1 + offset);
	if (ret < 0)
		return ret;

	return (ret & WM8915_GP1_LVL) != 0;
}

static int wm8915_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
{
	struct wm8915_priv *wm8915 = gpio_to_wm8915(chip);
	struct snd_soc_codec *codec = wm8915->codec;

	return snd_soc_update_bits(codec, WM8915_GPIO_1 + offset,
				   WM8915_GP1_FN_MASK | WM8915_GP1_DIR,
				   (1 << WM8915_GP1_FN_SHIFT) |
				   (1 << WM8915_GP1_DIR_SHIFT));
}

static struct gpio_chip wm8915_template_chip = {
	.label			= "wm8915",
	.owner			= THIS_MODULE,
	.direction_output	= wm8915_gpio_direction_out,
	.set			= wm8915_gpio_set,
	.direction_input	= wm8915_gpio_direction_in,
	.get			= wm8915_gpio_get,
	.can_sleep		= 1,
};

static void wm8915_init_gpio(struct snd_soc_codec *codec)
{
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	int ret;

	wm8915->gpio_chip = wm8915_template_chip;
	wm8915->gpio_chip.ngpio = 5;
	wm8915->gpio_chip.dev = codec->dev;

	if (wm8915->pdata.gpio_base)
		wm8915->gpio_chip.base = wm8915->pdata.gpio_base;
	else
		wm8915->gpio_chip.base = -1;

	ret = gpiochip_add(&wm8915->gpio_chip);
	if (ret != 0)
		dev_err(codec->dev, "Failed to add GPIOs: %d\n", ret);
}

static void wm8915_free_gpio(struct snd_soc_codec *codec)
{
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	int ret;

	ret = gpiochip_remove(&wm8915->gpio_chip);
	if (ret != 0)
		dev_err(codec->dev, "Failed to remove GPIOs: %d\n", ret);
}
#else
static void wm8915_init_gpio(struct snd_soc_codec *codec)
{
}

static void wm8915_free_gpio(struct snd_soc_codec *codec)
{
}
#endif

/**
 * wm8915_detect - Enable default WM8915 jack detection
 *
 * The WM8915 has advanced accessory detection support for headsets.
 * This function provides a default implementation which integrates
 * the majority of this functionality with minimal user configuration.
 *
 * This will detect headset, headphone and short circuit button and
 * will also detect inverted microphone ground connections and update
 * the polarity of the connections.
 */
int wm8915_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
		  wm8915_polarity_fn polarity_cb)
{
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);

	wm8915->jack = jack;
	wm8915->detecting = true;
	wm8915->polarity_cb = polarity_cb;

	if (wm8915->polarity_cb)
		wm8915->polarity_cb(codec, 0);

	/* Clear discarge to avoid noise during detection */
	snd_soc_update_bits(codec, WM8915_MICBIAS_1,
			    WM8915_MICB1_DISCH, 0);
	snd_soc_update_bits(codec, WM8915_MICBIAS_2,
			    WM8915_MICB2_DISCH, 0);

	/* LDO2 powers the microphones, SYSCLK clocks detection */
	snd_soc_dapm_force_enable_pin(&codec->dapm, "LDO2");
	snd_soc_dapm_force_enable_pin(&codec->dapm, "SYSCLK");

	/* We start off just enabling microphone detection - even a
	 * plain headphone will trigger detection.
	 */
	snd_soc_update_bits(codec, WM8915_MIC_DETECT_1,
			    WM8915_MICD_ENA, WM8915_MICD_ENA);

	/* Slowest detection rate, gives debounce for initial detection */
	snd_soc_update_bits(codec, WM8915_MIC_DETECT_1,
			    WM8915_MICD_RATE_MASK,
			    WM8915_MICD_RATE_MASK);

	/* Enable interrupts and we're off */
	snd_soc_update_bits(codec, WM8915_INTERRUPT_STATUS_2_MASK,
			    WM8915_IM_MICD_EINT, 0);

	return 0;
}
EXPORT_SYMBOL_GPL(wm8915_detect);

static void wm8915_micd(struct snd_soc_codec *codec)
{
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	int val, reg;

	val = snd_soc_read(codec, WM8915_MIC_DETECT_3);

	dev_dbg(codec->dev, "Microphone event: %x\n", val);

	if (!(val & WM8915_MICD_VALID)) {
		dev_warn(codec->dev, "Microphone detection state invalid\n");
		return;
	}

	/* No accessory, reset everything and report removal */
	if (!(val & WM8915_MICD_STS)) {
		dev_dbg(codec->dev, "Jack removal detected\n");
		wm8915->jack_mic = false;
		wm8915->detecting = true;
		snd_soc_jack_report(wm8915->jack, 0,
				    SND_JACK_HEADSET | SND_JACK_BTN_0);
		snd_soc_update_bits(codec, WM8915_MIC_DETECT_1,
				    WM8915_MICD_RATE_MASK,
				    WM8915_MICD_RATE_MASK);
		return;
	}

	/* If the measurement is very high we've got a microphone but
	 * do a little debounce to account for mechanical issues.
	 */
	if (val & 0x400) {
		dev_dbg(codec->dev, "Microphone detected\n");
		snd_soc_jack_report(wm8915->jack, SND_JACK_HEADSET,
				    SND_JACK_HEADSET | SND_JACK_BTN_0);
		wm8915->jack_mic = true;
		wm8915->detecting = false;

		/* Increase poll rate to give better responsiveness
		 * for buttons */
		snd_soc_update_bits(codec, WM8915_MIC_DETECT_1,
				    WM8915_MICD_RATE_MASK,
				    5 << WM8915_MICD_RATE_SHIFT);
	}

	/* If we detected a lower impedence during initial startup
	 * then we probably have the wrong polarity, flip it.  Don't
	 * do this for the lowest impedences to speed up detection of
	 * plain headphones.
	 */
	if (wm8915->detecting && (val & 0x3f0)) {
		reg = snd_soc_read(codec, WM8915_ACCESSORY_DETECT_MODE_2);
		reg ^= WM8915_HPOUT1FB_SRC | WM8915_MICD_SRC |
			WM8915_MICD_BIAS_SRC;
		snd_soc_update_bits(codec, WM8915_ACCESSORY_DETECT_MODE_2,
				    WM8915_HPOUT1FB_SRC | WM8915_MICD_SRC |
				    WM8915_MICD_BIAS_SRC, reg);

		if (wm8915->polarity_cb)
			wm8915->polarity_cb(codec,
					    (reg & WM8915_MICD_SRC) != 0);

		dev_dbg(codec->dev, "Set microphone polarity to %d\n",
			(reg & WM8915_MICD_SRC) != 0);

		return;
	}

	/* Don't distinguish between buttons, just report any low
	 * impedence as BTN_0.
	 */
	if (val & 0x3fc) {
		if (wm8915->jack_mic) {
			dev_dbg(codec->dev, "Mic button detected\n");
			snd_soc_jack_report(wm8915->jack,
					    SND_JACK_HEADSET | SND_JACK_BTN_0,
					    SND_JACK_HEADSET | SND_JACK_BTN_0);
		} else {
			dev_dbg(codec->dev, "Headphone detected\n");
			snd_soc_jack_report(wm8915->jack,
					    SND_JACK_HEADPHONE,
					    SND_JACK_HEADSET |
					    SND_JACK_BTN_0);

			/* Increase the detection rate a bit for
			 * responsiveness.
			 */
			snd_soc_update_bits(codec, WM8915_MIC_DETECT_1,
					    WM8915_MICD_RATE_MASK,
					    7 << WM8915_MICD_RATE_SHIFT);

			wm8915->detecting = false;
		}
	}
}

static irqreturn_t wm8915_irq(int irq, void *data)
{
	struct snd_soc_codec *codec = data;
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	int irq_val;

	irq_val = snd_soc_read(codec, WM8915_INTERRUPT_STATUS_2);
	if (irq_val < 0) {
		dev_err(codec->dev, "Failed to read IRQ status: %d\n",
			irq_val);
		return IRQ_NONE;
	}
	irq_val &= ~snd_soc_read(codec, WM8915_INTERRUPT_STATUS_2_MASK);

	if (irq_val & (WM8915_DCS_DONE_01_EINT | WM8915_DCS_DONE_23_EINT)) {
		dev_dbg(codec->dev, "DC servo IRQ\n");
		complete(&wm8915->dcs_done);
	}

	if (irq_val & WM8915_FIFOS_ERR_EINT)
		dev_err(codec->dev, "Digital core FIFO error\n");

	if (irq_val & WM8915_FLL_LOCK_EINT) {
		dev_dbg(codec->dev, "FLL locked\n");
		complete(&wm8915->fll_lock);
	}

	if (irq_val & WM8915_MICD_EINT)
		wm8915_micd(codec);

	if (irq_val) {
		snd_soc_write(codec, WM8915_INTERRUPT_STATUS_2, irq_val);

		return IRQ_HANDLED;
	} else {
		return IRQ_NONE;
	}
}

static irqreturn_t wm8915_edge_irq(int irq, void *data)
{
	irqreturn_t ret = IRQ_NONE;
	irqreturn_t val;

	do {
		val = wm8915_irq(irq, data);
		if (val != IRQ_NONE)
			ret = val;
	} while (val != IRQ_NONE);

	return ret;
}

static void wm8915_retune_mobile_pdata(struct snd_soc_codec *codec)
{
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	struct wm8915_pdata *pdata = &wm8915->pdata;

	struct snd_kcontrol_new controls[] = {
		SOC_ENUM_EXT("DSP1 EQ Mode",
			     wm8915->retune_mobile_enum,
			     wm8915_get_retune_mobile_enum,
			     wm8915_put_retune_mobile_enum),
		SOC_ENUM_EXT("DSP2 EQ Mode",
			     wm8915->retune_mobile_enum,
			     wm8915_get_retune_mobile_enum,
			     wm8915_put_retune_mobile_enum),
	};
	int ret, i, j;
	const char **t;

	/* We need an array of texts for the enum API but the number
	 * of texts is likely to be less than the number of
	 * configurations due to the sample rate dependency of the
	 * configurations. */
	wm8915->num_retune_mobile_texts = 0;
	wm8915->retune_mobile_texts = NULL;
	for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) {
		for (j = 0; j < wm8915->num_retune_mobile_texts; j++) {
			if (strcmp(pdata->retune_mobile_cfgs[i].name,
				   wm8915->retune_mobile_texts[j]) == 0)
				break;
		}

		if (j != wm8915->num_retune_mobile_texts)
			continue;

		/* Expand the array... */
		t = krealloc(wm8915->retune_mobile_texts,
			     sizeof(char *) * 
			     (wm8915->num_retune_mobile_texts + 1),
			     GFP_KERNEL);
		if (t == NULL)
			continue;

		/* ...store the new entry... */
		t[wm8915->num_retune_mobile_texts] = 
			pdata->retune_mobile_cfgs[i].name;

		/* ...and remember the new version. */
		wm8915->num_retune_mobile_texts++;
		wm8915->retune_mobile_texts = t;
	}

	dev_dbg(codec->dev, "Allocated %d unique ReTune Mobile names\n",
		wm8915->num_retune_mobile_texts);

	wm8915->retune_mobile_enum.max = wm8915->num_retune_mobile_texts;
	wm8915->retune_mobile_enum.texts = wm8915->retune_mobile_texts;

	ret = snd_soc_add_controls(codec, controls, ARRAY_SIZE(controls));
	if (ret != 0)
		dev_err(codec->dev,
			"Failed to add ReTune Mobile controls: %d\n", ret);
}

static int wm8915_probe(struct snd_soc_codec *codec)
{
	int ret;
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	struct i2c_client *i2c = to_i2c_client(codec->dev);
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	int i, irq_flags;

	wm8915->codec = codec;

	init_completion(&wm8915->dcs_done);
	init_completion(&wm8915->fll_lock);

	dapm->idle_bias_off = true;
	dapm->bias_level = SND_SOC_BIAS_OFF;

	ret = snd_soc_codec_set_cache_io(codec, 16, 16, SND_SOC_I2C);
	if (ret != 0) {
		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
		goto err;
	}

	for (i = 0; i < ARRAY_SIZE(wm8915->supplies); i++)
		wm8915->supplies[i].supply = wm8915_supply_names[i];

	ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8915->supplies),
				 wm8915->supplies);
	if (ret != 0) {
		dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
		goto err;
	}

	wm8915->disable_nb[0].notifier_call = wm8915_regulator_event_0;
	wm8915->disable_nb[1].notifier_call = wm8915_regulator_event_1;
	wm8915->disable_nb[2].notifier_call = wm8915_regulator_event_2;
	wm8915->disable_nb[3].notifier_call = wm8915_regulator_event_3;

	/* This should really be moved into the regulator core */
	for (i = 0; i < ARRAY_SIZE(wm8915->supplies); i++) {
		ret = regulator_register_notifier(wm8915->supplies[i].consumer,
						  &wm8915->disable_nb[i]);
		if (ret != 0) {
			dev_err(codec->dev,
				"Failed to register regulator notifier: %d\n",
				ret);
		}
	}

	ret = regulator_bulk_enable(ARRAY_SIZE(wm8915->supplies),
				    wm8915->supplies);
	if (ret != 0) {
		dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
		goto err_get;
	}

	if (wm8915->pdata.ldo_ena >= 0) {
		gpio_set_value_cansleep(wm8915->pdata.ldo_ena, 1);
		msleep(5);
	}

	ret = snd_soc_read(codec, WM8915_SOFTWARE_RESET);
	if (ret < 0) {
		dev_err(codec->dev, "Failed to read ID register: %d\n", ret);
		goto err_enable;
	}
	if (ret != 0x8915) {
		dev_err(codec->dev, "Device is not a WM8915, ID %x\n", ret);
		ret = -EINVAL;
		goto err_enable;
	}

	ret = snd_soc_read(codec, WM8915_CHIP_REVISION);
	if (ret < 0) {
		dev_err(codec->dev, "Failed to read device revision: %d\n",
			ret);
		goto err_enable;
	}
	
	dev_info(codec->dev, "revision %c\n",
		 (ret & WM8915_CHIP_REV_MASK) + 'A');

	if (wm8915->pdata.ldo_ena >= 0) {
		gpio_set_value_cansleep(wm8915->pdata.ldo_ena, 0);
	} else {
		ret = wm8915_reset(codec);
		if (ret < 0) {
			dev_err(codec->dev, "Failed to issue reset\n");
			goto err_enable;
		}
	}

	codec->cache_only = true;

	/* Apply platform data settings */
	snd_soc_update_bits(codec, WM8915_LINE_INPUT_CONTROL,
			    WM8915_INL_MODE_MASK | WM8915_INR_MODE_MASK,
			    wm8915->pdata.inl_mode << WM8915_INL_MODE_SHIFT |
			    wm8915->pdata.inr_mode);

	for (i = 0; i < ARRAY_SIZE(wm8915->pdata.gpio_default); i++) {
		if (!wm8915->pdata.gpio_default[i])
			continue;

		snd_soc_write(codec, WM8915_GPIO_1 + i,
			      wm8915->pdata.gpio_default[i] & 0xffff);
	}

	if (wm8915->pdata.spkmute_seq)
		snd_soc_update_bits(codec, WM8915_PDM_SPEAKER_MUTE_SEQUENCE,
				    WM8915_SPK_MUTE_ENDIAN |
				    WM8915_SPK_MUTE_SEQ1_MASK,
				    wm8915->pdata.spkmute_seq);

	snd_soc_update_bits(codec, WM8915_ACCESSORY_DETECT_MODE_2,
			    WM8915_MICD_BIAS_SRC | WM8915_HPOUT1FB_SRC |
			    WM8915_MICD_SRC, wm8915->pdata.micdet_def);

	/* Latch volume update bits */
	snd_soc_update_bits(codec, WM8915_LEFT_LINE_INPUT_VOLUME,
			    WM8915_IN1_VU, WM8915_IN1_VU);
	snd_soc_update_bits(codec, WM8915_RIGHT_LINE_INPUT_VOLUME,
			    WM8915_IN1_VU, WM8915_IN1_VU);

	snd_soc_update_bits(codec, WM8915_DAC1_LEFT_VOLUME,
			    WM8915_DAC1_VU, WM8915_DAC1_VU);
	snd_soc_update_bits(codec, WM8915_DAC1_RIGHT_VOLUME,
			    WM8915_DAC1_VU, WM8915_DAC1_VU);
	snd_soc_update_bits(codec, WM8915_DAC2_LEFT_VOLUME,
			    WM8915_DAC2_VU, WM8915_DAC2_VU);
	snd_soc_update_bits(codec, WM8915_DAC2_RIGHT_VOLUME,
			    WM8915_DAC2_VU, WM8915_DAC2_VU);

	snd_soc_update_bits(codec, WM8915_OUTPUT1_LEFT_VOLUME,
			    WM8915_DAC1_VU, WM8915_DAC1_VU);
	snd_soc_update_bits(codec, WM8915_OUTPUT1_RIGHT_VOLUME,
			    WM8915_DAC1_VU, WM8915_DAC1_VU);
	snd_soc_update_bits(codec, WM8915_OUTPUT2_LEFT_VOLUME,
			    WM8915_DAC2_VU, WM8915_DAC2_VU);
	snd_soc_update_bits(codec, WM8915_OUTPUT2_RIGHT_VOLUME,
			    WM8915_DAC2_VU, WM8915_DAC2_VU);

	snd_soc_update_bits(codec, WM8915_DSP1_TX_LEFT_VOLUME,
			    WM8915_DSP1TX_VU, WM8915_DSP1TX_VU);
	snd_soc_update_bits(codec, WM8915_DSP1_TX_RIGHT_VOLUME,
			    WM8915_DSP1TX_VU, WM8915_DSP1TX_VU);
	snd_soc_update_bits(codec, WM8915_DSP2_TX_LEFT_VOLUME,
			    WM8915_DSP2TX_VU, WM8915_DSP2TX_VU);
	snd_soc_update_bits(codec, WM8915_DSP2_TX_RIGHT_VOLUME,
			    WM8915_DSP2TX_VU, WM8915_DSP2TX_VU);

	snd_soc_update_bits(codec, WM8915_DSP1_RX_LEFT_VOLUME,
			    WM8915_DSP1RX_VU, WM8915_DSP1RX_VU);
	snd_soc_update_bits(codec, WM8915_DSP1_RX_RIGHT_VOLUME,
			    WM8915_DSP1RX_VU, WM8915_DSP1RX_VU);
	snd_soc_update_bits(codec, WM8915_DSP2_RX_LEFT_VOLUME,
			    WM8915_DSP2RX_VU, WM8915_DSP2RX_VU);
	snd_soc_update_bits(codec, WM8915_DSP2_RX_RIGHT_VOLUME,
			    WM8915_DSP2RX_VU, WM8915_DSP2RX_VU);

	/* No support currently for the underclocked TDM modes and
	 * pick a default TDM layout with each channel pair working with
	 * slots 0 and 1. */
	snd_soc_update_bits(codec, WM8915_AIF1RX_CHANNEL_0_CONFIGURATION,
			    WM8915_AIF1RX_CHAN0_SLOTS_MASK |
			    WM8915_AIF1RX_CHAN0_START_SLOT_MASK,
			    1 << WM8915_AIF1RX_CHAN0_SLOTS_SHIFT | 0);
	snd_soc_update_bits(codec, WM8915_AIF1RX_CHANNEL_1_CONFIGURATION,
			    WM8915_AIF1RX_CHAN1_SLOTS_MASK |
			    WM8915_AIF1RX_CHAN1_START_SLOT_MASK,
			    1 << WM8915_AIF1RX_CHAN1_SLOTS_SHIFT | 1);
	snd_soc_update_bits(codec, WM8915_AIF1RX_CHANNEL_2_CONFIGURATION,
			    WM8915_AIF1RX_CHAN2_SLOTS_MASK |
			    WM8915_AIF1RX_CHAN2_START_SLOT_MASK,
			    1 << WM8915_AIF1RX_CHAN2_SLOTS_SHIFT | 0);
	snd_soc_update_bits(codec, WM8915_AIF1RX_CHANNEL_3_CONFIGURATION,
			    WM8915_AIF1RX_CHAN3_SLOTS_MASK |
			    WM8915_AIF1RX_CHAN0_START_SLOT_MASK,
			    1 << WM8915_AIF1RX_CHAN3_SLOTS_SHIFT | 1);
	snd_soc_update_bits(codec, WM8915_AIF1RX_CHANNEL_4_CONFIGURATION,
			    WM8915_AIF1RX_CHAN4_SLOTS_MASK |
			    WM8915_AIF1RX_CHAN0_START_SLOT_MASK,
			    1 << WM8915_AIF1RX_CHAN4_SLOTS_SHIFT | 0);
	snd_soc_update_bits(codec, WM8915_AIF1RX_CHANNEL_5_CONFIGURATION,
			    WM8915_AIF1RX_CHAN5_SLOTS_MASK |
			    WM8915_AIF1RX_CHAN0_START_SLOT_MASK,
			    1 << WM8915_AIF1RX_CHAN5_SLOTS_SHIFT | 1);

	snd_soc_update_bits(codec, WM8915_AIF2RX_CHANNEL_0_CONFIGURATION,
			    WM8915_AIF2RX_CHAN0_SLOTS_MASK |
			    WM8915_AIF2RX_CHAN0_START_SLOT_MASK,
			    1 << WM8915_AIF2RX_CHAN0_SLOTS_SHIFT | 0);
	snd_soc_update_bits(codec, WM8915_AIF2RX_CHANNEL_1_CONFIGURATION,
			    WM8915_AIF2RX_CHAN1_SLOTS_MASK |
			    WM8915_AIF2RX_CHAN1_START_SLOT_MASK,
			    1 << WM8915_AIF2RX_CHAN1_SLOTS_SHIFT | 1);

	snd_soc_update_bits(codec, WM8915_AIF1TX_CHANNEL_0_CONFIGURATION,
			    WM8915_AIF1TX_CHAN0_SLOTS_MASK |
			    WM8915_AIF1TX_CHAN0_START_SLOT_MASK,
			    1 << WM8915_AIF1TX_CHAN0_SLOTS_SHIFT | 0);
	snd_soc_update_bits(codec, WM8915_AIF1TX_CHANNEL_1_CONFIGURATION,
			    WM8915_AIF1TX_CHAN1_SLOTS_MASK |
			    WM8915_AIF1TX_CHAN0_START_SLOT_MASK,
			    1 << WM8915_AIF1TX_CHAN1_SLOTS_SHIFT | 1);
	snd_soc_update_bits(codec, WM8915_AIF1TX_CHANNEL_2_CONFIGURATION,
			    WM8915_AIF1TX_CHAN2_SLOTS_MASK |
			    WM8915_AIF1TX_CHAN0_START_SLOT_MASK,
			    1 << WM8915_AIF1TX_CHAN2_SLOTS_SHIFT | 0);
	snd_soc_update_bits(codec, WM8915_AIF1TX_CHANNEL_3_CONFIGURATION,
			    WM8915_AIF1TX_CHAN3_SLOTS_MASK |
			    WM8915_AIF1TX_CHAN0_START_SLOT_MASK,
			    1 << WM8915_AIF1TX_CHAN3_SLOTS_SHIFT | 1);
	snd_soc_update_bits(codec, WM8915_AIF1TX_CHANNEL_4_CONFIGURATION,
			    WM8915_AIF1TX_CHAN4_SLOTS_MASK |
			    WM8915_AIF1TX_CHAN0_START_SLOT_MASK,
			    1 << WM8915_AIF1TX_CHAN4_SLOTS_SHIFT | 0);
	snd_soc_update_bits(codec, WM8915_AIF1TX_CHANNEL_5_CONFIGURATION,
			    WM8915_AIF1TX_CHAN5_SLOTS_MASK |
			    WM8915_AIF1TX_CHAN0_START_SLOT_MASK,
			    1 << WM8915_AIF1TX_CHAN5_SLOTS_SHIFT | 1);

	snd_soc_update_bits(codec, WM8915_AIF2TX_CHANNEL_0_CONFIGURATION,
			    WM8915_AIF2TX_CHAN0_SLOTS_MASK |
			    WM8915_AIF2TX_CHAN0_START_SLOT_MASK,
			    1 << WM8915_AIF2TX_CHAN0_SLOTS_SHIFT | 0);
	snd_soc_update_bits(codec, WM8915_AIF1TX_CHANNEL_1_CONFIGURATION,
			    WM8915_AIF2TX_CHAN1_SLOTS_MASK |
			    WM8915_AIF2TX_CHAN1_START_SLOT_MASK,
			    1 << WM8915_AIF1TX_CHAN1_SLOTS_SHIFT | 1);

	if (wm8915->pdata.num_retune_mobile_cfgs)
		wm8915_retune_mobile_pdata(codec);
	else
		snd_soc_add_controls(codec, wm8915_eq_controls,
				     ARRAY_SIZE(wm8915_eq_controls));

	/* If the TX LRCLK pins are not in LRCLK mode configure the
	 * AIFs to source their clocks from the RX LRCLKs.
	 */
	if ((snd_soc_read(codec, WM8915_GPIO_1)))
		snd_soc_update_bits(codec, WM8915_AIF1_TX_LRCLK_2,
				    WM8915_AIF1TX_LRCLK_MODE,
				    WM8915_AIF1TX_LRCLK_MODE);

	if ((snd_soc_read(codec, WM8915_GPIO_2)))
		snd_soc_update_bits(codec, WM8915_AIF2_TX_LRCLK_2,
				    WM8915_AIF2TX_LRCLK_MODE,
				    WM8915_AIF2TX_LRCLK_MODE);

	regulator_bulk_disable(ARRAY_SIZE(wm8915->supplies), wm8915->supplies);

	wm8915_init_gpio(codec);

	if (i2c->irq) {
		if (wm8915->pdata.irq_flags)
			irq_flags = wm8915->pdata.irq_flags;
		else
			irq_flags = IRQF_TRIGGER_LOW;

		irq_flags |= IRQF_ONESHOT;

		if (irq_flags & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING))
			ret = request_threaded_irq(i2c->irq, NULL,
						   wm8915_edge_irq,
						   irq_flags, "wm8915", codec);
		else
			ret = request_threaded_irq(i2c->irq, NULL, wm8915_irq,
						   irq_flags, "wm8915", codec);

		if (ret == 0) {
			/* Unmask the interrupt */
			snd_soc_update_bits(codec, WM8915_INTERRUPT_CONTROL,
					    WM8915_IM_IRQ, 0);

			/* Enable error reporting and DC servo status */
			snd_soc_update_bits(codec,
					    WM8915_INTERRUPT_STATUS_2_MASK,
					    WM8915_IM_DCS_DONE_23_EINT |
					    WM8915_IM_DCS_DONE_01_EINT |
					    WM8915_IM_FLL_LOCK_EINT |
					    WM8915_IM_FIFOS_ERR_EINT,
					    0);
		} else {
			dev_err(codec->dev, "Failed to request IRQ: %d\n",
				ret);
		}
	}

	return 0;

err_enable:
	if (wm8915->pdata.ldo_ena >= 0)
		gpio_set_value_cansleep(wm8915->pdata.ldo_ena, 0);

	regulator_bulk_disable(ARRAY_SIZE(wm8915->supplies), wm8915->supplies);
err_get:
	regulator_bulk_free(ARRAY_SIZE(wm8915->supplies), wm8915->supplies);
err:
	return ret;
}

static int wm8915_remove(struct snd_soc_codec *codec)
{
	struct wm8915_priv *wm8915 = snd_soc_codec_get_drvdata(codec);
	struct i2c_client *i2c = to_i2c_client(codec->dev);
	int i;

	snd_soc_update_bits(codec, WM8915_INTERRUPT_CONTROL,
			    WM8915_IM_IRQ, WM8915_IM_IRQ);

	if (i2c->irq)
		free_irq(i2c->irq, codec);

	wm8915_free_gpio(codec);

	for (i = 0; i < ARRAY_SIZE(wm8915->supplies); i++)
		regulator_unregister_notifier(wm8915->supplies[i].consumer,
					      &wm8915->disable_nb[i]);
	regulator_bulk_free(ARRAY_SIZE(wm8915->supplies), wm8915->supplies);

	return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_wm8915 = {
	.probe =	wm8915_probe,
	.remove =	wm8915_remove,
	.set_bias_level = wm8915_set_bias_level,
	.seq_notifier = wm8915_seq_notifier,
	.reg_cache_size = WM8915_MAX_REGISTER + 1,
	.reg_word_size = sizeof(u16),
	.reg_cache_default = wm8915_reg,
	.volatile_register = wm8915_volatile_register,
	.readable_register = wm8915_readable_register,
	.compress_type = SND_SOC_RBTREE_COMPRESSION,
	.controls = wm8915_snd_controls,
	.num_controls = ARRAY_SIZE(wm8915_snd_controls),
	.dapm_widgets = wm8915_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(wm8915_dapm_widgets),
	.dapm_routes = wm8915_dapm_routes,
	.num_dapm_routes = ARRAY_SIZE(wm8915_dapm_routes),
	.set_pll = wm8915_set_fll,
};

#define WM8915_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |\
		      SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_48000)
#define WM8915_FORMATS (SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_S16_LE |\
			SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE |\
			SNDRV_PCM_FMTBIT_S32_LE)

static struct snd_soc_dai_ops wm8915_dai_ops = {
	.set_fmt = wm8915_set_fmt,
	.hw_params = wm8915_hw_params,
	.set_sysclk = wm8915_set_sysclk,
};

static struct snd_soc_dai_driver wm8915_dai[] = {
	{
		.name = "wm8915-aif1",
		.playback = {
			.stream_name = "AIF1 Playback",
			.channels_min = 1,
			.channels_max = 6,
			.rates = WM8915_RATES,
			.formats = WM8915_FORMATS,
		},
		.capture = {
			 .stream_name = "AIF1 Capture",
			 .channels_min = 1,
			 .channels_max = 6,
			 .rates = WM8915_RATES,
			 .formats = WM8915_FORMATS,
		 },
		.ops = &wm8915_dai_ops,
	},
	{
		.name = "wm8915-aif2",
		.playback = {
			.stream_name = "AIF2 Playback",
			.channels_min = 1,
			.channels_max = 2,
			.rates = WM8915_RATES,
			.formats = WM8915_FORMATS,
		},
		.capture = {
			 .stream_name = "AIF2 Capture",
			 .channels_min = 1,
			 .channels_max = 2,
			 .rates = WM8915_RATES,
			 .formats = WM8915_FORMATS,
		 },
		.ops = &wm8915_dai_ops,
	},
};

static __devinit int wm8915_i2c_probe(struct i2c_client *i2c,
				      const struct i2c_device_id *id)
{
	struct wm8915_priv *wm8915;
	int ret;

	wm8915 = kzalloc(sizeof(struct wm8915_priv), GFP_KERNEL);
	if (wm8915 == NULL)
		return -ENOMEM;

	i2c_set_clientdata(i2c, wm8915);

	if (dev_get_platdata(&i2c->dev))
		memcpy(&wm8915->pdata, dev_get_platdata(&i2c->dev),
		       sizeof(wm8915->pdata));

	if (wm8915->pdata.ldo_ena > 0) {
		ret = gpio_request_one(wm8915->pdata.ldo_ena,
				       GPIOF_OUT_INIT_LOW, "WM8915 ENA");
		if (ret < 0) {
			dev_err(&i2c->dev, "Failed to request GPIO %d: %d\n",
				wm8915->pdata.ldo_ena, ret);
			goto err;
		}
	}

	ret = snd_soc_register_codec(&i2c->dev,
				     &soc_codec_dev_wm8915, wm8915_dai,
				     ARRAY_SIZE(wm8915_dai));
	if (ret < 0)
		goto err_gpio;

	return ret;

err_gpio:
	if (wm8915->pdata.ldo_ena > 0)
		gpio_free(wm8915->pdata.ldo_ena);
err:
	kfree(wm8915);

	return ret;
}

static __devexit int wm8915_i2c_remove(struct i2c_client *client)
{
	struct wm8915_priv *wm8915 = i2c_get_clientdata(client);

	snd_soc_unregister_codec(&client->dev);
	if (wm8915->pdata.ldo_ena > 0)
		gpio_free(wm8915->pdata.ldo_ena);
	kfree(i2c_get_clientdata(client));
	return 0;
}

static const struct i2c_device_id wm8915_i2c_id[] = {
	{ "wm8915", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, wm8915_i2c_id);

static struct i2c_driver wm8915_i2c_driver = {
	.driver = {
		.name = "wm8915",
		.owner = THIS_MODULE,
	},
	.probe =    wm8915_i2c_probe,
	.remove =   __devexit_p(wm8915_i2c_remove),
	.id_table = wm8915_i2c_id,
};

static int __init wm8915_modinit(void)
{
	int ret;

	ret = i2c_add_driver(&wm8915_i2c_driver);
	if (ret != 0) {
		printk(KERN_ERR "Failed to register WM8915 I2C driver: %d\n",
		       ret);
	}

	return ret;
}
module_init(wm8915_modinit);

static void __exit wm8915_exit(void)
{
	i2c_del_driver(&wm8915_i2c_driver);
}
module_exit(wm8915_exit);

MODULE_DESCRIPTION("ASoC WM8915 driver");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_LICENSE("GPL");