sound/soc/codecs/wm8995.c

   1 /*
   2  * wm8995.c  --  WM8995 ALSA SoC Audio driver
   3  *
   4  * Copyright 2010 Wolfson Microelectronics plc
   5  *
   6  * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
   7  *
   8  * Based on wm8994.c and wm_hubs.c by Mark Brown
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/module.h>
  16 #include <linux/moduleparam.h>
  17 #include <linux/init.h>
  18 #include <linux/delay.h>
  19 #include <linux/pm.h>
  20 #include <linux/i2c.h>
  21 #include <linux/regmap.h>
  22 #include <linux/spi/spi.h>
  23 #include <linux/regulator/consumer.h>
  24 #include <linux/slab.h>
  25 #include <sound/core.h>
  26 #include <sound/pcm.h>
  27 #include <sound/pcm_params.h>
  28 #include <sound/soc.h>
  29 #include <sound/soc-dapm.h>
  30 #include <sound/initval.h>
  31 #include <sound/tlv.h>
  32
  33 #include "wm8995.h"
  34
  35 #define WM8995_NUM_SUPPLIES 8
  36 static const char *wm8995_supply_names[WM8995_NUM_SUPPLIES] = {
  37         "DCVDD",
  38         "DBVDD1",
  39         "DBVDD2",
  40         "DBVDD3",
  41         "AVDD1",
  42         "AVDD2",
  43         "CPVDD",
  44         "MICVDD"
  45 };
  46
  47 static struct reg_default wm8995_reg_defaults[] = {
  48         { 0, 0x8995 },
  49         { 5, 0x0100 },
  50         { 16, 0x000b },
  51         { 17, 0x000b },
  52         { 24, 0x02c0 },
  53         { 25, 0x02c0 },
  54         { 26, 0x02c0 },
  55         { 27, 0x02c0 },
  56         { 28, 0x000f },
  57         { 32, 0x0005 },
  58         { 33, 0x0005 },
  59         { 40, 0x0003 },
  60         { 41, 0x0013 },
  61         { 48, 0x0004 },
  62         { 56, 0x09f8 },
  63         { 64, 0x1f25 },
  64         { 69, 0x0004 },
  65         { 82, 0xaaaa },
  66         { 84, 0x2a2a },
  67         { 146, 0x0060 },
  68         { 256, 0x0002 },
  69         { 257, 0x8004 },
  70         { 520, 0x0010 },
  71         { 528, 0x0083 },
  72         { 529, 0x0083 },
  73         { 548, 0x0c80 },
  74         { 580, 0x0c80 },
  75         { 768, 0x4050 },
  76         { 769, 0x4000 },
  77         { 771, 0x0040 },
  78         { 772, 0x0040 },
  79         { 773, 0x0040 },
  80         { 774, 0x0004 },
  81         { 775, 0x0100 },
  82         { 784, 0x4050 },
  83         { 785, 0x4000 },
  84         { 787, 0x0040 },
  85         { 788, 0x0040 },
  86         { 789, 0x0040 },
  87         { 1024, 0x00c0 },
  88         { 1025, 0x00c0 },
  89         { 1026, 0x00c0 },
  90         { 1027, 0x00c0 },
  91         { 1028, 0x00c0 },
  92         { 1029, 0x00c0 },
  93         { 1030, 0x00c0 },
  94         { 1031, 0x00c0 },
  95         { 1056, 0x0200 },
  96         { 1057, 0x0010 },
  97         { 1058, 0x0200 },
  98         { 1059, 0x0010 },
  99         { 1088, 0x0098 },
 100         { 1089, 0x0845 },
 101         { 1104, 0x0098 },
 102         { 1105, 0x0845 },
 103         { 1152, 0x6318 },
 104         { 1153, 0x6300 },
 105         { 1154, 0x0fca },
 106         { 1155, 0x0400 },
 107         { 1156, 0x00d8 },
 108         { 1157, 0x1eb5 },
 109         { 1158, 0xf145 },
 110         { 1159, 0x0b75 },
 111         { 1160, 0x01c5 },
 112         { 1161, 0x1c58 },
 113         { 1162, 0xf373 },
 114         { 1163, 0x0a54 },
 115         { 1164, 0x0558 },
 116         { 1165, 0x168e },
 117         { 1166, 0xf829 },
 118         { 1167, 0x07ad },
 119         { 1168, 0x1103 },
 120         { 1169, 0x0564 },
 121         { 1170, 0x0559 },
 122         { 1171, 0x4000 },
 123         { 1184, 0x6318 },
 124         { 1185, 0x6300 },
 125         { 1186, 0x0fca },
 126         { 1187, 0x0400 },
 127         { 1188, 0x00d8 },
 128         { 1189, 0x1eb5 },
 129         { 1190, 0xf145 },
 130         { 1191, 0x0b75 },
 131         { 1192, 0x01c5 },
 132         { 1193, 0x1c58 },
 133         { 1194, 0xf373 },
 134         { 1195, 0x0a54 },
 135         { 1196, 0x0558 },
 136         { 1197, 0x168e },
 137         { 1198, 0xf829 },
 138         { 1199, 0x07ad },
 139         { 1200, 0x1103 },
 140         { 1201, 0x0564 },
 141         { 1202, 0x0559 },
 142         { 1203, 0x4000 },
 143         { 1280, 0x00c0 },
 144         { 1281, 0x00c0 },
 145         { 1282, 0x00c0 },
 146         { 1283, 0x00c0 },
 147         { 1312, 0x0200 },
 148         { 1313, 0x0010 },
 149         { 1344, 0x0098 },
 150         { 1345, 0x0845 },
 151         { 1408, 0x6318 },
 152         { 1409, 0x6300 },
 153         { 1410, 0x0fca },
 154         { 1411, 0x0400 },
 155         { 1412, 0x00d8 },
 156         { 1413, 0x1eb5 },
 157         { 1414, 0xf145 },
 158         { 1415, 0x0b75 },
 159         { 1416, 0x01c5 },
 160         { 1417, 0x1c58 },
 161         { 1418, 0xf373 },
 162         { 1419, 0x0a54 },
 163         { 1420, 0x0558 },
 164         { 1421, 0x168e },
 165         { 1422, 0xf829 },
 166         { 1423, 0x07ad },
 167         { 1424, 0x1103 },
 168         { 1425, 0x0564 },
 169         { 1426, 0x0559 },
 170         { 1427, 0x4000 },
 171         { 1568, 0x0002 },
 172         { 1792, 0xa100 },
 173         { 1793, 0xa101 },
 174         { 1794, 0xa101 },
 175         { 1795, 0xa101 },
 176         { 1796, 0xa101 },
 177         { 1797, 0xa101 },
 178         { 1798, 0xa101 },
 179         { 1799, 0xa101 },
 180         { 1800, 0xa101 },
 181         { 1801, 0xa101 },
 182         { 1802, 0xa101 },
 183         { 1803, 0xa101 },
 184         { 1804, 0xa101 },
 185         { 1805, 0xa101 },
 186         { 1825, 0x0055 },
 187         { 1848, 0x3fff },
 188         { 1849, 0x1fff },
 189         { 2049, 0x0001 },
 190         { 2050, 0x0069 },
 191         { 2056, 0x0002 },
 192         { 2057, 0x0003 },
 193         { 2058, 0x0069 },
 194         { 12288, 0x0001 },
 195         { 12289, 0x0001 },
 196         { 12291, 0x0006 },
 197         { 12292, 0x0040 },
 198         { 12293, 0x0001 },
 199         { 12294, 0x000f },
 200         { 12295, 0x0006 },
 201         { 12296, 0x0001 },
 202         { 12297, 0x0003 },
 203         { 12298, 0x0104 },
 204         { 12300, 0x0060 },
 205         { 12301, 0x0011 },
 206         { 12302, 0x0401 },
 207         { 12304, 0x0050 },
 208         { 12305, 0x0003 },
 209         { 12306, 0x0100 },
 210         { 12308, 0x0051 },
 211         { 12309, 0x0003 },
 212         { 12310, 0x0104 },
 213         { 12311, 0x000a },
 214         { 12312, 0x0060 },
 215         { 12313, 0x003b },
 216         { 12314, 0x0502 },
 217         { 12315, 0x0100 },
 218         { 12316, 0x2fff },
 219         { 12320, 0x2fff },
 220         { 12324, 0x2fff },
 221         { 12328, 0x2fff },
 222         { 12332, 0x2fff },
 223         { 12336, 0x2fff },
 224         { 12340, 0x2fff },
 225         { 12344, 0x2fff },
 226         { 12348, 0x2fff },
 227         { 12352, 0x0001 },
 228         { 12353, 0x0001 },
 229         { 12355, 0x0006 },
 230         { 12356, 0x0040 },
 231         { 12357, 0x0001 },
 232         { 12358, 0x000f },
 233         { 12359, 0x0006 },
 234         { 12360, 0x0001 },
 235         { 12361, 0x0003 },
 236         { 12362, 0x0104 },
 237         { 12364, 0x0060 },
 238         { 12365, 0x0011 },
 239         { 12366, 0x0401 },
 240         { 12368, 0x0050 },
 241         { 12369, 0x0003 },
 242         { 12370, 0x0100 },
 243         { 12372, 0x0060 },
 244         { 12373, 0x003b },
 245         { 12374, 0x0502 },
 246         { 12375, 0x0100 },
 247         { 12376, 0x2fff },
 248         { 12380, 0x2fff },
 249         { 12384, 0x2fff },
 250         { 12388, 0x2fff },
 251         { 12392, 0x2fff },
 252         { 12396, 0x2fff },
 253         { 12400, 0x2fff },
 254         { 12404, 0x2fff },
 255         { 12408, 0x2fff },
 256         { 12412, 0x2fff },
 257         { 12416, 0x0001 },
 258         { 12417, 0x0001 },
 259         { 12419, 0x0006 },
 260         { 12420, 0x0040 },
 261         { 12421, 0x0001 },
 262         { 12422, 0x000f },
 263         { 12423, 0x0006 },
 264         { 12424, 0x0001 },
 265         { 12425, 0x0003 },
 266         { 12426, 0x0106 },
 267         { 12428, 0x0061 },
 268         { 12429, 0x0011 },
 269         { 12430, 0x0401 },
 270         { 12432, 0x0050 },
 271         { 12433, 0x0003 },
 272         { 12434, 0x0102 },
 273         { 12436, 0x0051 },
 274         { 12437, 0x0003 },
 275         { 12438, 0x0106 },
 276         { 12439, 0x000a },
 277         { 12440, 0x0061 },
 278         { 12441, 0x003b },
 279         { 12442, 0x0502 },
 280         { 12443, 0x0100 },
 281         { 12444, 0x2fff },
 282         { 12448, 0x2fff },
 283         { 12452, 0x2fff },
 284         { 12456, 0x2fff },
 285         { 12460, 0x2fff },
 286         { 12464, 0x2fff },
 287         { 12468, 0x2fff },
 288         { 12472, 0x2fff },
 289         { 12476, 0x2fff },
 290         { 12480, 0x0001 },
 291         { 12481, 0x0001 },
 292         { 12483, 0x0006 },
 293         { 12484, 0x0040 },
 294         { 12485, 0x0001 },
 295         { 12486, 0x000f },
 296         { 12487, 0x0006 },
 297         { 12488, 0x0001 },
 298         { 12489, 0x0003 },
 299         { 12490, 0x0106 },
 300         { 12492, 0x0061 },
 301         { 12493, 0x0011 },
 302         { 12494, 0x0401 },
 303         { 12496, 0x0050 },
 304         { 12497, 0x0003 },
 305         { 12498, 0x0102 },
 306         { 12500, 0x0061 },
 307         { 12501, 0x003b },
 308         { 12502, 0x0502 },
 309         { 12503, 0x0100 },
 310         { 12504, 0x2fff },
 311         { 12508, 0x2fff },
 312         { 12512, 0x2fff },
 313         { 12516, 0x2fff },
 314         { 12520, 0x2fff },
 315         { 12524, 0x2fff },
 316         { 12528, 0x2fff },
 317         { 12532, 0x2fff },
 318         { 12536, 0x2fff },
 319         { 12540, 0x2fff },
 320         { 12544, 0x0060 },
 321         { 12546, 0x0601 },
 322         { 12548, 0x0050 },
 323         { 12550, 0x0100 },
 324         { 12552, 0x0001 },
 325         { 12554, 0x0104 },
 326         { 12555, 0x0100 },
 327         { 12556, 0x2fff },
 328         { 12560, 0x2fff },
 329         { 12564, 0x2fff },
 330         { 12568, 0x2fff },
 331         { 12572, 0x2fff },
 332         { 12576, 0x2fff },
 333         { 12580, 0x2fff },
 334         { 12584, 0x2fff },
 335         { 12588, 0x2fff },
 336         { 12592, 0x2fff },
 337         { 12596, 0x2fff },
 338         { 12600, 0x2fff },
 339         { 12604, 0x2fff },
 340         { 12608, 0x0061 },
 341         { 12610, 0x0601 },
 342         { 12612, 0x0050 },
 343         { 12614, 0x0102 },
 344         { 12616, 0x0001 },
 345         { 12618, 0x0106 },
 346         { 12619, 0x0100 },
 347         { 12620, 0x2fff },
 348         { 12624, 0x2fff },
 349         { 12628, 0x2fff },
 350         { 12632, 0x2fff },
 351         { 12636, 0x2fff },
 352         { 12640, 0x2fff },
 353         { 12644, 0x2fff },
 354         { 12648, 0x2fff },
 355         { 12652, 0x2fff },
 356         { 12656, 0x2fff },
 357         { 12660, 0x2fff },
 358         { 12664, 0x2fff },
 359         { 12668, 0x2fff },
 360         { 12672, 0x0060 },
 361         { 12674, 0x0601 },
 362         { 12676, 0x0061 },
 363         { 12678, 0x0601 },
 364         { 12680, 0x0050 },
 365         { 12682, 0x0300 },
 366         { 12684, 0x0001 },
 367         { 12686, 0x0304 },
 368         { 12688, 0x0040 },
 369         { 12690, 0x000f },
 370         { 12692, 0x0001 },
 371         { 12695, 0x0100 },
 372 };
 373
 374 struct fll_config {
 375         int src;
 376         int in;
 377         int out;
 378 };
 379
 380 struct wm8995_priv {
 381         struct regmap *regmap;
 382         int sysclk[2];
 383         int mclk[2];
 384         int aifclk[2];
 385         struct fll_config fll[2], fll_suspend[2];
 386         struct regulator_bulk_data supplies[WM8995_NUM_SUPPLIES];
 387         struct notifier_block disable_nb[WM8995_NUM_SUPPLIES];
 388         struct snd_soc_codec *codec;
 389 };
 390
 391 /*
 392  * We can't use the same notifier block for more than one supply and
 393  * there's no way I can see to get from a callback to the caller
 394  * except container_of().
 395  */
 396 #define WM8995_REGULATOR_EVENT(n) \
 397 static int wm8995_regulator_event_##n(struct notifier_block *nb, \
 398                                       unsigned long event, void *data)    \
 399 { \
 400         struct wm8995_priv *wm8995 = container_of(nb, struct wm8995_priv, \
 401                                      disable_nb[n]); \
 402         if (event & REGULATOR_EVENT_DISABLE) { \
 403                 regcache_mark_dirty(wm8995->regmap);    \
 404         } \
 405         return 0; \
 406 }
 407
 408 WM8995_REGULATOR_EVENT(0)
 409 WM8995_REGULATOR_EVENT(1)
 410 WM8995_REGULATOR_EVENT(2)
 411 WM8995_REGULATOR_EVENT(3)
 412 WM8995_REGULATOR_EVENT(4)
 413 WM8995_REGULATOR_EVENT(5)
 414 WM8995_REGULATOR_EVENT(6)
 415 WM8995_REGULATOR_EVENT(7)
 416
 417 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
 418 static const DECLARE_TLV_DB_SCALE(in1lr_pga_tlv, -1650, 150, 0);
 419 static const DECLARE_TLV_DB_SCALE(in1l_boost_tlv, 0, 600, 0);
 420 static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 150, 0);
 421
 422 static const char *in1l_text[] = {
 423         "Differential", "Single-ended IN1LN", "Single-ended IN1LP"
 424 };
 425
 426 static SOC_ENUM_SINGLE_DECL(in1l_enum, WM8995_LEFT_LINE_INPUT_CONTROL,
 427                             2, in1l_text);
 428
 429 static const char *in1r_text[] = {
 430         "Differential", "Single-ended IN1RN", "Single-ended IN1RP"
 431 };
 432
 433 static SOC_ENUM_SINGLE_DECL(in1r_enum, WM8995_LEFT_LINE_INPUT_CONTROL,
 434                             0, in1r_text);
 435
 436 static const char *dmic_src_text[] = {
 437         "DMICDAT1", "DMICDAT2", "DMICDAT3"
 438 };
 439
 440 static SOC_ENUM_SINGLE_DECL(dmic_src1_enum, WM8995_POWER_MANAGEMENT_5,
 441                             8, dmic_src_text);
 442 static SOC_ENUM_SINGLE_DECL(dmic_src2_enum, WM8995_POWER_MANAGEMENT_5,
 443                             6, dmic_src_text);
 444
 445 static const struct snd_kcontrol_new wm8995_snd_controls[] = {
 446         SOC_DOUBLE_R_TLV("DAC1 Volume", WM8995_DAC1_LEFT_VOLUME,
 447                 WM8995_DAC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 448         SOC_DOUBLE_R("DAC1 Switch", WM8995_DAC1_LEFT_VOLUME,
 449                 WM8995_DAC1_RIGHT_VOLUME, 9, 1, 1),
 450
 451         SOC_DOUBLE_R_TLV("DAC2 Volume", WM8995_DAC2_LEFT_VOLUME,
 452                 WM8995_DAC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 453         SOC_DOUBLE_R("DAC2 Switch", WM8995_DAC2_LEFT_VOLUME,
 454                 WM8995_DAC2_RIGHT_VOLUME, 9, 1, 1),
 455
 456         SOC_DOUBLE_R_TLV("AIF1DAC1 Volume", WM8995_AIF1_DAC1_LEFT_VOLUME,
 457                 WM8995_AIF1_DAC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 458         SOC_DOUBLE_R_TLV("AIF1DAC2 Volume", WM8995_AIF1_DAC2_LEFT_VOLUME,
 459                 WM8995_AIF1_DAC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 460         SOC_DOUBLE_R_TLV("AIF2DAC Volume", WM8995_AIF2_DAC_LEFT_VOLUME,
 461                 WM8995_AIF2_DAC_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 462
 463         SOC_DOUBLE_R_TLV("IN1LR Volume", WM8995_LEFT_LINE_INPUT_1_VOLUME,
 464                 WM8995_RIGHT_LINE_INPUT_1_VOLUME, 0, 31, 0, in1lr_pga_tlv),
 465
 466         SOC_SINGLE_TLV("IN1L Boost", WM8995_LEFT_LINE_INPUT_CONTROL,
 467                 4, 3, 0, in1l_boost_tlv),
 468
 469         SOC_ENUM("IN1L Mode", in1l_enum),
 470         SOC_ENUM("IN1R Mode", in1r_enum),
 471
 472         SOC_ENUM("DMIC1 SRC", dmic_src1_enum),
 473         SOC_ENUM("DMIC2 SRC", dmic_src2_enum),
 474
 475         SOC_DOUBLE_TLV("DAC1 Sidetone Volume", WM8995_DAC1_MIXER_VOLUMES, 0, 5,
 476                 24, 0, sidetone_tlv),
 477         SOC_DOUBLE_TLV("DAC2 Sidetone Volume", WM8995_DAC2_MIXER_VOLUMES, 0, 5,
 478                 24, 0, sidetone_tlv),
 479
 480         SOC_DOUBLE_R_TLV("AIF1ADC1 Volume", WM8995_AIF1_ADC1_LEFT_VOLUME,
 481                 WM8995_AIF1_ADC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 482         SOC_DOUBLE_R_TLV("AIF1ADC2 Volume", WM8995_AIF1_ADC2_LEFT_VOLUME,
 483                 WM8995_AIF1_ADC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 484         SOC_DOUBLE_R_TLV("AIF2ADC Volume", WM8995_AIF2_ADC_LEFT_VOLUME,
 485                 WM8995_AIF2_ADC_RIGHT_VOLUME, 0, 96, 0, digital_tlv)
 486 };
 487
 488 static void wm8995_update_class_w(struct snd_soc_codec *codec)
 489 {
 490         int enable = 1;
 491         int source = 0;  /* GCC flow analysis can't track enable */
 492         int reg, reg_r;
 493
 494         /* We also need the same setting for L/R and only one path */
 495         reg = snd_soc_read(codec, WM8995_DAC1_LEFT_MIXER_ROUTING);
 496         switch (reg) {
 497         case WM8995_AIF2DACL_TO_DAC1L:
 498                 dev_dbg(codec->dev, "Class W source AIF2DAC\n");
 499                 source = 2 << WM8995_CP_DYN_SRC_SEL_SHIFT;
 500                 break;
 501         case WM8995_AIF1DAC2L_TO_DAC1L:
 502                 dev_dbg(codec->dev, "Class W source AIF1DAC2\n");
 503                 source = 1 << WM8995_CP_DYN_SRC_SEL_SHIFT;
 504                 break;
 505         case WM8995_AIF1DAC1L_TO_DAC1L:
 506                 dev_dbg(codec->dev, "Class W source AIF1DAC1\n");
 507                 source = 0 << WM8995_CP_DYN_SRC_SEL_SHIFT;
 508                 break;
 509         default:
 510                 dev_dbg(codec->dev, "DAC mixer setting: %x\n", reg);
 511                 enable = 0;
 512                 break;
 513         }
 514
 515         reg_r = snd_soc_read(codec, WM8995_DAC1_RIGHT_MIXER_ROUTING);
 516         if (reg_r != reg) {
 517                 dev_dbg(codec->dev, "Left and right DAC mixers different\n");
 518                 enable = 0;
 519         }
 520
 521         if (enable) {
 522                 dev_dbg(codec->dev, "Class W enabled\n");
 523                 snd_soc_update_bits(codec, WM8995_CLASS_W_1,
 524                                     WM8995_CP_DYN_PWR_MASK |
 525                                     WM8995_CP_DYN_SRC_SEL_MASK,
 526                                     source | WM8995_CP_DYN_PWR);
 527         } else {
 528                 dev_dbg(codec->dev, "Class W disabled\n");
 529                 snd_soc_update_bits(codec, WM8995_CLASS_W_1,
 530                                     WM8995_CP_DYN_PWR_MASK, 0);
 531         }
 532 }
 533
 534 static int check_clk_sys(struct snd_soc_dapm_widget *source,
 535                          struct snd_soc_dapm_widget *sink)
 536 {
 537         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(source->dapm);
 538         unsigned int reg;
 539         const char *clk;
 540
 541         reg = snd_soc_read(codec, WM8995_CLOCKING_1);
 542         /* Check what we're currently using for CLK_SYS */
 543         if (reg & WM8995_SYSCLK_SRC)
 544                 clk = "AIF2CLK";
 545         else
 546                 clk = "AIF1CLK";
 547         return !strcmp(source->name, clk);
 548 }
 549
 550 static int wm8995_put_class_w(struct snd_kcontrol *kcontrol,
 551                               struct snd_ctl_elem_value *ucontrol)
 552 {
 553         struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol);
 554         int ret;
 555
 556         ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
 557         wm8995_update_class_w(codec);
 558         return ret;
 559 }
 560
 561 static int hp_supply_event(struct snd_soc_dapm_widget *w,
 562                            struct snd_kcontrol *kcontrol, int event)
 563 {
 564         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
 565
 566         switch (event) {
 567         case SND_SOC_DAPM_PRE_PMU:
 568                 /* Enable the headphone amp */
 569                 snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 570                                     WM8995_HPOUT1L_ENA_MASK |
 571                                     WM8995_HPOUT1R_ENA_MASK,
 572                                     WM8995_HPOUT1L_ENA |
 573                                     WM8995_HPOUT1R_ENA);
 574
 575                 /* Enable the second stage */
 576                 snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1,
 577                                     WM8995_HPOUT1L_DLY_MASK |
 578                                     WM8995_HPOUT1R_DLY_MASK,
 579                                     WM8995_HPOUT1L_DLY |
 580                                     WM8995_HPOUT1R_DLY);
 581                 break;
 582         case SND_SOC_DAPM_PRE_PMD:
 583                 snd_soc_update_bits(codec, WM8995_CHARGE_PUMP_1,
 584                                     WM8995_CP_ENA_MASK, 0);
 585                 break;
 586         }
 587
 588         return 0;
 589 }
 590
 591 static void dc_servo_cmd(struct snd_soc_codec *codec,
 592                          unsigned int reg, unsigned int val, unsigned int mask)
 593 {
 594         int timeout = 10;
 595
 596         dev_dbg(codec->dev, "%s: reg = %#x, val = %#x, mask = %#x\n",
 597                 __func__, reg, val, mask);
 598
 599         snd_soc_write(codec, reg, val);
 600         while (timeout--) {
 601                 msleep(10);
 602                 val = snd_soc_read(codec, WM8995_DC_SERVO_READBACK_0);
 603                 if ((val & mask) == mask)
 604                         return;
 605         }
 606
 607         dev_err(codec->dev, "Timed out waiting for DC Servo\n");
 608 }
 609
 610 static int hp_event(struct snd_soc_dapm_widget *w,
 611                     struct snd_kcontrol *kcontrol, int event)
 612 {
 613         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
 614         unsigned int reg;
 615
 616         reg = snd_soc_read(codec, WM8995_ANALOGUE_HP_1);
 617
 618         switch (event) {
 619         case SND_SOC_DAPM_POST_PMU:
 620                 snd_soc_update_bits(codec, WM8995_CHARGE_PUMP_1,
 621                                     WM8995_CP_ENA_MASK, WM8995_CP_ENA);
 622
 623                 msleep(5);
 624
 625                 snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 626                                     WM8995_HPOUT1L_ENA_MASK |
 627                                     WM8995_HPOUT1R_ENA_MASK,
 628                                     WM8995_HPOUT1L_ENA | WM8995_HPOUT1R_ENA);
 629
 630                 udelay(20);
 631
 632                 reg |= WM8995_HPOUT1L_DLY | WM8995_HPOUT1R_DLY;
 633                 snd_soc_write(codec, WM8995_ANALOGUE_HP_1, reg);
 634
 635                 snd_soc_write(codec, WM8995_DC_SERVO_1, WM8995_DCS_ENA_CHAN_0 |
 636                               WM8995_DCS_ENA_CHAN_1);
 637
 638                 dc_servo_cmd(codec, WM8995_DC_SERVO_2,
 639                              WM8995_DCS_TRIG_STARTUP_0 |
 640                              WM8995_DCS_TRIG_STARTUP_1,
 641                              WM8995_DCS_TRIG_DAC_WR_0 |
 642                              WM8995_DCS_TRIG_DAC_WR_1);
 643
 644                 reg |= WM8995_HPOUT1R_OUTP | WM8995_HPOUT1R_RMV_SHORT |
 645                        WM8995_HPOUT1L_OUTP | WM8995_HPOUT1L_RMV_SHORT;
 646                 snd_soc_write(codec, WM8995_ANALOGUE_HP_1, reg);
 647
 648                 break;
 649         case SND_SOC_DAPM_PRE_PMD:
 650                 snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1,
 651                                     WM8995_HPOUT1L_OUTP_MASK |
 652                                     WM8995_HPOUT1R_OUTP_MASK |
 653                                     WM8995_HPOUT1L_RMV_SHORT_MASK |
 654                                     WM8995_HPOUT1R_RMV_SHORT_MASK, 0);
 655
 656                 snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1,
 657                                     WM8995_HPOUT1L_DLY_MASK |
 658                                     WM8995_HPOUT1R_DLY_MASK, 0);
 659
 660                 snd_soc_write(codec, WM8995_DC_SERVO_1, 0);
 661
 662                 snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 663                                     WM8995_HPOUT1L_ENA_MASK |
 664                                     WM8995_HPOUT1R_ENA_MASK,
 665                                     0);
 666                 break;
 667         }
 668
 669         return 0;
 670 }
 671
 672 static int configure_aif_clock(struct snd_soc_codec *codec, int aif)
 673 {
 674         struct wm8995_priv *wm8995;
 675         int rate;
 676         int reg1 = 0;
 677         int offset;
 678
 679         wm8995 = snd_soc_codec_get_drvdata(codec);
 680
 681         if (aif)
 682                 offset = 4;
 683         else
 684                 offset = 0;
 685
 686         switch (wm8995->sysclk[aif]) {
 687         case WM8995_SYSCLK_MCLK1:
 688                 rate = wm8995->mclk[0];
 689                 break;
 690         case WM8995_SYSCLK_MCLK2:
 691                 reg1 |= 0x8;
 692                 rate = wm8995->mclk[1];
 693                 break;
 694         case WM8995_SYSCLK_FLL1:
 695                 reg1 |= 0x10;
 696                 rate = wm8995->fll[0].out;
 697                 break;
 698         case WM8995_SYSCLK_FLL2:
 699                 reg1 |= 0x18;
 700                 rate = wm8995->fll[1].out;
 701                 break;
 702         default:
 703                 return -EINVAL;
 704         }
 705
 706         if (rate >= 13500000) {
 707                 rate /= 2;
 708                 reg1 |= WM8995_AIF1CLK_DIV;
 709
 710                 dev_dbg(codec->dev, "Dividing AIF%d clock to %dHz\n",
 711                         aif + 1, rate);
 712         }
 713
 714         wm8995->aifclk[aif] = rate;
 715
 716         snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1 + offset,
 717                             WM8995_AIF1CLK_SRC_MASK | WM8995_AIF1CLK_DIV_MASK,
 718                             reg1);
 719         return 0;
 720 }
 721
 722 static int configure_clock(struct snd_soc_codec *codec)
 723 {
 724         struct wm8995_priv *wm8995;
 725         int change, new;
 726
 727         wm8995 = snd_soc_codec_get_drvdata(codec);
 728
 729         /* Bring up the AIF clocks first */
 730         configure_aif_clock(codec, 0);
 731         configure_aif_clock(codec, 1);
 732
 733         /*
 734          * Then switch CLK_SYS over to the higher of them; a change
 735          * can only happen as a result of a clocking change which can
 736          * only be made outside of DAPM so we can safely redo the
 737          * clocking.
 738          */
 739
 740         /* If they're equal it doesn't matter which is used */
 741         if (wm8995->aifclk[0] == wm8995->aifclk[1])
 742                 return 0;
 743
 744         if (wm8995->aifclk[0] < wm8995->aifclk[1])
 745                 new = WM8995_SYSCLK_SRC;
 746         else
 747                 new = 0;
 748
 749         change = snd_soc_update_bits(codec, WM8995_CLOCKING_1,
 750                                      WM8995_SYSCLK_SRC_MASK, new);
 751         if (!change)
 752                 return 0;
 753
 754         snd_soc_dapm_sync(&codec->dapm);
 755
 756         return 0;
 757 }
 758
 759 static int clk_sys_event(struct snd_soc_dapm_widget *w,
 760                          struct snd_kcontrol *kcontrol, int event)
 761 {
 762         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
 763
 764         switch (event) {
 765         case SND_SOC_DAPM_PRE_PMU:
 766                 return configure_clock(codec);
 767
 768         case SND_SOC_DAPM_POST_PMD:
 769                 configure_clock(codec);
 770                 break;
 771         }
 772
 773         return 0;
 774 }
 775
 776 static const char *sidetone_text[] = {
 777         "ADC/DMIC1", "DMIC2",
 778 };
 779
 780 static SOC_ENUM_SINGLE_DECL(sidetone1_enum, WM8995_SIDETONE, 0, sidetone_text);
 781
 782 static const struct snd_kcontrol_new sidetone1_mux =
 783         SOC_DAPM_ENUM("Left Sidetone Mux", sidetone1_enum);
 784
 785 static SOC_ENUM_SINGLE_DECL(sidetone2_enum, WM8995_SIDETONE, 1, sidetone_text);
 786
 787 static const struct snd_kcontrol_new sidetone2_mux =
 788         SOC_DAPM_ENUM("Right Sidetone Mux", sidetone2_enum);
 789
 790 static const struct snd_kcontrol_new aif1adc1l_mix[] = {
 791         SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING,
 792                 1, 1, 0),
 793         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING,
 794                 0, 1, 0),
 795 };
 796
 797 static const struct snd_kcontrol_new aif1adc1r_mix[] = {
 798         SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING,
 799                 1, 1, 0),
 800         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING,
 801                 0, 1, 0),
 802 };
 803
 804 static const struct snd_kcontrol_new aif1adc2l_mix[] = {
 805         SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING,
 806                 1, 1, 0),
 807         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING,
 808                 0, 1, 0),
 809 };
 810
 811 static const struct snd_kcontrol_new aif1adc2r_mix[] = {
 812         SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING,
 813                 1, 1, 0),
 814         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING,
 815                 0, 1, 0),
 816 };
 817
 818 static const struct snd_kcontrol_new dac1l_mix[] = {
 819         WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 820                 5, 1, 0),
 821         WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 822                 4, 1, 0),
 823         WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 824                 2, 1, 0),
 825         WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 826                 1, 1, 0),
 827         WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 828                 0, 1, 0),
 829 };
 830
 831 static const struct snd_kcontrol_new dac1r_mix[] = {
 832         WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 833                 5, 1, 0),
 834         WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 835                 4, 1, 0),
 836         WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 837                 2, 1, 0),
 838         WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 839                 1, 1, 0),
 840         WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 841                 0, 1, 0),
 842 };
 843
 844 static const struct snd_kcontrol_new aif2dac2l_mix[] = {
 845         SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 846                 5, 1, 0),
 847         SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 848                 4, 1, 0),
 849         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 850                 2, 1, 0),
 851         SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 852                 1, 1, 0),
 853         SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 854                 0, 1, 0),
 855 };
 856
 857 static const struct snd_kcontrol_new aif2dac2r_mix[] = {
 858         SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 859                 5, 1, 0),
 860         SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 861                 4, 1, 0),
 862         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 863                 2, 1, 0),
 864         SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 865                 1, 1, 0),
 866         SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 867                 0, 1, 0),
 868 };
 869
 870 static const struct snd_kcontrol_new in1l_pga =
 871         SOC_DAPM_SINGLE("IN1L Switch", WM8995_POWER_MANAGEMENT_2, 5, 1, 0);
 872
 873 static const struct snd_kcontrol_new in1r_pga =
 874         SOC_DAPM_SINGLE("IN1R Switch", WM8995_POWER_MANAGEMENT_2, 4, 1, 0);
 875
 876 static const char *adc_mux_text[] = {
 877         "ADC",
 878         "DMIC",
 879 };
 880
 881 static SOC_ENUM_SINGLE_VIRT_DECL(adc_enum, adc_mux_text);
 882
 883 static const struct snd_kcontrol_new adcl_mux =
 884         SOC_DAPM_ENUM("ADCL Mux", adc_enum);
 885
 886 static const struct snd_kcontrol_new adcr_mux =
 887         SOC_DAPM_ENUM("ADCR Mux", adc_enum);
 888
 889 static const char *spk_src_text[] = {
 890         "DAC1L", "DAC1R", "DAC2L", "DAC2R"
 891 };
 892
 893 static SOC_ENUM_SINGLE_DECL(spk1l_src_enum, WM8995_LEFT_PDM_SPEAKER_1,
 894                             0, spk_src_text);
 895 static SOC_ENUM_SINGLE_DECL(spk1r_src_enum, WM8995_RIGHT_PDM_SPEAKER_1,
 896                             0, spk_src_text);
 897 static SOC_ENUM_SINGLE_DECL(spk2l_src_enum, WM8995_LEFT_PDM_SPEAKER_2,
 898                             0, spk_src_text);
 899 static SOC_ENUM_SINGLE_DECL(spk2r_src_enum, WM8995_RIGHT_PDM_SPEAKER_2,
 900                             0, spk_src_text);
 901
 902 static const struct snd_kcontrol_new spk1l_mux =
 903         SOC_DAPM_ENUM("SPK1L SRC", spk1l_src_enum);
 904 static const struct snd_kcontrol_new spk1r_mux =
 905         SOC_DAPM_ENUM("SPK1R SRC", spk1r_src_enum);
 906 static const struct snd_kcontrol_new spk2l_mux =
 907         SOC_DAPM_ENUM("SPK2L SRC", spk2l_src_enum);
 908 static const struct snd_kcontrol_new spk2r_mux =
 909         SOC_DAPM_ENUM("SPK2R SRC", spk2r_src_enum);
 910
 911 static const struct snd_soc_dapm_widget wm8995_dapm_widgets[] = {
 912         SND_SOC_DAPM_INPUT("DMIC1DAT"),
 913         SND_SOC_DAPM_INPUT("DMIC2DAT"),
 914
 915         SND_SOC_DAPM_INPUT("IN1L"),
 916         SND_SOC_DAPM_INPUT("IN1R"),
 917
 918         SND_SOC_DAPM_MIXER("IN1L PGA", SND_SOC_NOPM, 0, 0,
 919                 &in1l_pga, 1),
 920         SND_SOC_DAPM_MIXER("IN1R PGA", SND_SOC_NOPM, 0, 0,
 921                 &in1r_pga, 1),
 922
 923         SND_SOC_DAPM_SUPPLY("MICBIAS1", WM8995_POWER_MANAGEMENT_1, 8, 0,
 924                             NULL, 0),
 925         SND_SOC_DAPM_SUPPLY("MICBIAS2", WM8995_POWER_MANAGEMENT_1, 9, 0,
 926                             NULL, 0),
 927
 928         SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8995_AIF1_CLOCKING_1, 0, 0, NULL, 0),
 929         SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8995_AIF2_CLOCKING_1, 0, 0, NULL, 0),
 930         SND_SOC_DAPM_SUPPLY("DSP1CLK", WM8995_CLOCKING_1, 3, 0, NULL, 0),
 931         SND_SOC_DAPM_SUPPLY("DSP2CLK", WM8995_CLOCKING_1, 2, 0, NULL, 0),
 932         SND_SOC_DAPM_SUPPLY("SYSDSPCLK", WM8995_CLOCKING_1, 1, 0, NULL, 0),
 933         SND_SOC_DAPM_SUPPLY("CLK_SYS", SND_SOC_NOPM, 0, 0, clk_sys_event,
 934                 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 935
 936         SND_SOC_DAPM_AIF_OUT("AIF1ADC1L", "AIF1 Capture", 0,
 937                 WM8995_POWER_MANAGEMENT_3, 9, 0),
 938         SND_SOC_DAPM_AIF_OUT("AIF1ADC1R", "AIF1 Capture", 0,
 939                 WM8995_POWER_MANAGEMENT_3, 8, 0),
 940         SND_SOC_DAPM_AIF_OUT("AIF1ADCDAT", "AIF1 Capture", 0,
 941         SND_SOC_NOPM, 0, 0),
 942         SND_SOC_DAPM_AIF_OUT("AIF1ADC2L", "AIF1 Capture",
 943                 0, WM8995_POWER_MANAGEMENT_3, 11, 0),
 944         SND_SOC_DAPM_AIF_OUT("AIF1ADC2R", "AIF1 Capture",
 945                 0, WM8995_POWER_MANAGEMENT_3, 10, 0),
 946
 947         SND_SOC_DAPM_MUX("ADCL Mux", SND_SOC_NOPM, 1, 0, &adcl_mux),
 948         SND_SOC_DAPM_MUX("ADCR Mux", SND_SOC_NOPM, 0, 0, &adcr_mux),
 949
 950         SND_SOC_DAPM_ADC("DMIC2L", NULL, WM8995_POWER_MANAGEMENT_3, 5, 0),
 951         SND_SOC_DAPM_ADC("DMIC2R", NULL, WM8995_POWER_MANAGEMENT_3, 4, 0),
 952         SND_SOC_DAPM_ADC("DMIC1L", NULL, WM8995_POWER_MANAGEMENT_3, 3, 0),
 953         SND_SOC_DAPM_ADC("DMIC1R", NULL, WM8995_POWER_MANAGEMENT_3, 2, 0),
 954
 955         SND_SOC_DAPM_ADC("ADCL", NULL, WM8995_POWER_MANAGEMENT_3, 1, 0),
 956         SND_SOC_DAPM_ADC("ADCR", NULL, WM8995_POWER_MANAGEMENT_3, 0, 0),
 957
 958         SND_SOC_DAPM_MIXER("AIF1ADC1L Mixer", SND_SOC_NOPM, 0, 0,
 959                 aif1adc1l_mix, ARRAY_SIZE(aif1adc1l_mix)),
 960         SND_SOC_DAPM_MIXER("AIF1ADC1R Mixer", SND_SOC_NOPM, 0, 0,
 961                 aif1adc1r_mix, ARRAY_SIZE(aif1adc1r_mix)),
 962         SND_SOC_DAPM_MIXER("AIF1ADC2L Mixer", SND_SOC_NOPM, 0, 0,
 963                 aif1adc2l_mix, ARRAY_SIZE(aif1adc2l_mix)),
 964         SND_SOC_DAPM_MIXER("AIF1ADC2R Mixer", SND_SOC_NOPM, 0, 0,
 965                 aif1adc2r_mix, ARRAY_SIZE(aif1adc2r_mix)),
 966
 967         SND_SOC_DAPM_AIF_IN("AIF1DAC1L", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 968                 9, 0),
 969         SND_SOC_DAPM_AIF_IN("AIF1DAC1R", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 970                 8, 0),
 971         SND_SOC_DAPM_AIF_IN("AIF1DACDAT", "AIF1 Playback", 0, SND_SOC_NOPM,
 972                 0, 0),
 973
 974         SND_SOC_DAPM_AIF_IN("AIF1DAC2L", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 975                 11, 0),
 976         SND_SOC_DAPM_AIF_IN("AIF1DAC2R", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 977                 10, 0),
 978
 979         SND_SOC_DAPM_MIXER("AIF2DAC2L Mixer", SND_SOC_NOPM, 0, 0,
 980                 aif2dac2l_mix, ARRAY_SIZE(aif2dac2l_mix)),
 981         SND_SOC_DAPM_MIXER("AIF2DAC2R Mixer", SND_SOC_NOPM, 0, 0,
 982                 aif2dac2r_mix, ARRAY_SIZE(aif2dac2r_mix)),
 983
 984         SND_SOC_DAPM_DAC("DAC2L", NULL, WM8995_POWER_MANAGEMENT_4, 3, 0),
 985         SND_SOC_DAPM_DAC("DAC2R", NULL, WM8995_POWER_MANAGEMENT_4, 2, 0),
 986         SND_SOC_DAPM_DAC("DAC1L", NULL, WM8995_POWER_MANAGEMENT_4, 1, 0),
 987         SND_SOC_DAPM_DAC("DAC1R", NULL, WM8995_POWER_MANAGEMENT_4, 0, 0),
 988
 989         SND_SOC_DAPM_MIXER("DAC1L Mixer", SND_SOC_NOPM, 0, 0, dac1l_mix,
 990                 ARRAY_SIZE(dac1l_mix)),
 991         SND_SOC_DAPM_MIXER("DAC1R Mixer", SND_SOC_NOPM, 0, 0, dac1r_mix,
 992                 ARRAY_SIZE(dac1r_mix)),
 993
 994         SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &sidetone1_mux),
 995         SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &sidetone2_mux),
 996
 997         SND_SOC_DAPM_PGA_E("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
 998                 hp_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 999
1000         SND_SOC_DAPM_SUPPLY("Headphone Supply", SND_SOC_NOPM, 0, 0,
1001                 hp_supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1002
1003         SND_SOC_DAPM_MUX("SPK1L Driver", WM8995_LEFT_PDM_SPEAKER_1,
1004                 4, 0, &spk1l_mux),
1005         SND_SOC_DAPM_MUX("SPK1R Driver", WM8995_RIGHT_PDM_SPEAKER_1,
1006                 4, 0, &spk1r_mux),
1007         SND_SOC_DAPM_MUX("SPK2L Driver", WM8995_LEFT_PDM_SPEAKER_2,
1008                 4, 0, &spk2l_mux),
1009         SND_SOC_DAPM_MUX("SPK2R Driver", WM8995_RIGHT_PDM_SPEAKER_2,
1010                 4, 0, &spk2r_mux),
1011
1012         SND_SOC_DAPM_SUPPLY("LDO2", WM8995_POWER_MANAGEMENT_2, 1, 0, NULL, 0),
1013
1014         SND_SOC_DAPM_OUTPUT("HP1L"),
1015         SND_SOC_DAPM_OUTPUT("HP1R"),
1016         SND_SOC_DAPM_OUTPUT("SPK1L"),
1017         SND_SOC_DAPM_OUTPUT("SPK1R"),
1018         SND_SOC_DAPM_OUTPUT("SPK2L"),
1019         SND_SOC_DAPM_OUTPUT("SPK2R")
1020 };
1021
1022 static const struct snd_soc_dapm_route wm8995_intercon[] = {
1023         { "CLK_SYS", NULL, "AIF1CLK", check_clk_sys },
1024         { "CLK_SYS", NULL, "AIF2CLK", check_clk_sys },
1025
1026         { "DSP1CLK", NULL, "CLK_SYS" },
1027         { "DSP2CLK", NULL, "CLK_SYS" },
1028         { "SYSDSPCLK", NULL, "CLK_SYS" },
1029
1030         { "AIF1ADC1L", NULL, "AIF1CLK" },
1031         { "AIF1ADC1L", NULL, "DSP1CLK" },
1032         { "AIF1ADC1R", NULL, "AIF1CLK" },
1033         { "AIF1ADC1R", NULL, "DSP1CLK" },
1034         { "AIF1ADC1R", NULL, "SYSDSPCLK" },
1035
1036         { "AIF1ADC2L", NULL, "AIF1CLK" },
1037         { "AIF1ADC2L", NULL, "DSP1CLK" },
1038         { "AIF1ADC2R", NULL, "AIF1CLK" },
1039         { "AIF1ADC2R", NULL, "DSP1CLK" },
1040         { "AIF1ADC2R", NULL, "SYSDSPCLK" },
1041
1042         { "DMIC1L", NULL, "DMIC1DAT" },
1043         { "DMIC1L", NULL, "CLK_SYS" },
1044         { "DMIC1R", NULL, "DMIC1DAT" },
1045         { "DMIC1R", NULL, "CLK_SYS" },
1046         { "DMIC2L", NULL, "DMIC2DAT" },
1047         { "DMIC2L", NULL, "CLK_SYS" },
1048         { "DMIC2R", NULL, "DMIC2DAT" },
1049         { "DMIC2R", NULL, "CLK_SYS" },
1050
1051         { "ADCL", NULL, "AIF1CLK" },
1052         { "ADCL", NULL, "DSP1CLK" },
1053         { "ADCL", NULL, "SYSDSPCLK" },
1054
1055         { "ADCR", NULL, "AIF1CLK" },
1056         { "ADCR", NULL, "DSP1CLK" },
1057         { "ADCR", NULL, "SYSDSPCLK" },
1058
1059         { "IN1L PGA", "IN1L Switch", "IN1L" },
1060         { "IN1R PGA", "IN1R Switch", "IN1R" },
1061         { "IN1L PGA", NULL, "LDO2" },
1062         { "IN1R PGA", NULL, "LDO2" },
1063
1064         { "ADCL", NULL, "IN1L PGA" },
1065         { "ADCR", NULL, "IN1R PGA" },
1066
1067         { "ADCL Mux", "ADC", "ADCL" },
1068         { "ADCL Mux", "DMIC", "DMIC1L" },
1069         { "ADCR Mux", "ADC", "ADCR" },
1070         { "ADCR Mux", "DMIC", "DMIC1R" },
1071
1072         /* AIF1 outputs */
1073         { "AIF1ADC1L", NULL, "AIF1ADC1L Mixer" },
1074         { "AIF1ADC1L Mixer", "ADC/DMIC Switch", "ADCL Mux" },
1075
1076         { "AIF1ADC1R", NULL, "AIF1ADC1R Mixer" },
1077         { "AIF1ADC1R Mixer", "ADC/DMIC Switch", "ADCR Mux" },
1078
1079         { "AIF1ADC2L", NULL, "AIF1ADC2L Mixer" },
1080         { "AIF1ADC2L Mixer", "DMIC Switch", "DMIC2L" },
1081
1082         { "AIF1ADC2R", NULL, "AIF1ADC2R Mixer" },
1083         { "AIF1ADC2R Mixer", "DMIC Switch", "DMIC2R" },
1084
1085         /* Sidetone */
1086         { "Left Sidetone", "ADC/DMIC1", "AIF1ADC1L" },
1087         { "Left Sidetone", "DMIC2", "AIF1ADC2L" },
1088         { "Right Sidetone", "ADC/DMIC1", "AIF1ADC1R" },
1089         { "Right Sidetone", "DMIC2", "AIF1ADC2R" },
1090
1091         { "AIF1DAC1L", NULL, "AIF1CLK" },
1092         { "AIF1DAC1L", NULL, "DSP1CLK" },
1093         { "AIF1DAC1R", NULL, "AIF1CLK" },
1094         { "AIF1DAC1R", NULL, "DSP1CLK" },
1095         { "AIF1DAC1R", NULL, "SYSDSPCLK" },
1096
1097         { "AIF1DAC2L", NULL, "AIF1CLK" },
1098         { "AIF1DAC2L", NULL, "DSP1CLK" },
1099         { "AIF1DAC2R", NULL, "AIF1CLK" },
1100         { "AIF1DAC2R", NULL, "DSP1CLK" },
1101         { "AIF1DAC2R", NULL, "SYSDSPCLK" },
1102
1103         { "DAC1L", NULL, "AIF1CLK" },
1104         { "DAC1L", NULL, "DSP1CLK" },
1105         { "DAC1L", NULL, "SYSDSPCLK" },
1106
1107         { "DAC1R", NULL, "AIF1CLK" },
1108         { "DAC1R", NULL, "DSP1CLK" },
1109         { "DAC1R", NULL, "SYSDSPCLK" },
1110
1111         { "AIF1DAC1L", NULL, "AIF1DACDAT" },
1112         { "AIF1DAC1R", NULL, "AIF1DACDAT" },
1113         { "AIF1DAC2L", NULL, "AIF1DACDAT" },
1114         { "AIF1DAC2R", NULL, "AIF1DACDAT" },
1115
1116         /* DAC1 inputs */
1117         { "DAC1L", NULL, "DAC1L Mixer" },
1118         { "DAC1L Mixer", "AIF1.1 Switch", "AIF1DAC1L" },
1119         { "DAC1L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
1120         { "DAC1L Mixer", "Left Sidetone Switch", "Left Sidetone" },
1121         { "DAC1L Mixer", "Right Sidetone Switch", "Right Sidetone" },
1122
1123         { "DAC1R", NULL, "DAC1R Mixer" },
1124         { "DAC1R Mixer", "AIF1.1 Switch", "AIF1DAC1R" },
1125         { "DAC1R Mixer", "AIF1.2 Switch", "AIF1DAC2R" },
1126         { "DAC1R Mixer", "Left Sidetone Switch", "Left Sidetone" },
1127         { "DAC1R Mixer", "Right Sidetone Switch", "Right Sidetone" },
1128
1129         /* DAC2/AIF2 outputs */
1130         { "DAC2L", NULL, "AIF2DAC2L Mixer" },
1131         { "AIF2DAC2L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
1132         { "AIF2DAC2L Mixer", "AIF1.1 Switch", "AIF1DAC1L" },
1133
1134         { "DAC2R", NULL, "AIF2DAC2R Mixer" },
1135         { "AIF2DAC2R Mixer", "AIF1.2 Switch", "AIF1DAC2R" },
1136         { "AIF2DAC2R Mixer", "AIF1.1 Switch", "AIF1DAC1R" },
1137
1138         /* Output stages */
1139         { "Headphone PGA", NULL, "DAC1L" },
1140         { "Headphone PGA", NULL, "DAC1R" },
1141
1142         { "Headphone PGA", NULL, "DAC2L" },
1143         { "Headphone PGA", NULL, "DAC2R" },
1144
1145         { "Headphone PGA", NULL, "Headphone Supply" },
1146         { "Headphone PGA", NULL, "CLK_SYS" },
1147         { "Headphone PGA", NULL, "LDO2" },
1148
1149         { "HP1L", NULL, "Headphone PGA" },
1150         { "HP1R", NULL, "Headphone PGA" },
1151
1152         { "SPK1L Driver", "DAC1L", "DAC1L" },
1153         { "SPK1L Driver", "DAC1R", "DAC1R" },
1154         { "SPK1L Driver", "DAC2L", "DAC2L" },
1155         { "SPK1L Driver", "DAC2R", "DAC2R" },
1156         { "SPK1L Driver", NULL, "CLK_SYS" },
1157
1158         { "SPK1R Driver", "DAC1L", "DAC1L" },
1159         { "SPK1R Driver", "DAC1R", "DAC1R" },
1160         { "SPK1R Driver", "DAC2L", "DAC2L" },
1161         { "SPK1R Driver", "DAC2R", "DAC2R" },
1162         { "SPK1R Driver", NULL, "CLK_SYS" },
1163
1164         { "SPK2L Driver", "DAC1L", "DAC1L" },
1165         { "SPK2L Driver", "DAC1R", "DAC1R" },
1166         { "SPK2L Driver", "DAC2L", "DAC2L" },
1167         { "SPK2L Driver", "DAC2R", "DAC2R" },
1168         { "SPK2L Driver", NULL, "CLK_SYS" },
1169
1170         { "SPK2R Driver", "DAC1L", "DAC1L" },
1171         { "SPK2R Driver", "DAC1R", "DAC1R" },
1172         { "SPK2R Driver", "DAC2L", "DAC2L" },
1173         { "SPK2R Driver", "DAC2R", "DAC2R" },
1174         { "SPK2R Driver", NULL, "CLK_SYS" },
1175
1176         { "SPK1L", NULL, "SPK1L Driver" },
1177         { "SPK1R", NULL, "SPK1R Driver" },
1178         { "SPK2L", NULL, "SPK2L Driver" },
1179         { "SPK2R", NULL, "SPK2R Driver" }
1180 };
1181
1182 static bool wm8995_readable(struct device *dev, unsigned int reg)
1183 {
1184         switch (reg) {
1185         case WM8995_SOFTWARE_RESET:
1186         case WM8995_POWER_MANAGEMENT_1:
1187         case WM8995_POWER_MANAGEMENT_2:
1188         case WM8995_POWER_MANAGEMENT_3:
1189         case WM8995_POWER_MANAGEMENT_4:
1190         case WM8995_POWER_MANAGEMENT_5:
1191         case WM8995_LEFT_LINE_INPUT_1_VOLUME:
1192         case WM8995_RIGHT_LINE_INPUT_1_VOLUME:
1193         case WM8995_LEFT_LINE_INPUT_CONTROL:
1194         case WM8995_DAC1_LEFT_VOLUME:
1195         case WM8995_DAC1_RIGHT_VOLUME:
1196         case WM8995_DAC2_LEFT_VOLUME:
1197         case WM8995_DAC2_RIGHT_VOLUME:
1198         case WM8995_OUTPUT_VOLUME_ZC_1:
1199         case WM8995_MICBIAS_1:
1200         case WM8995_MICBIAS_2:
1201         case WM8995_LDO_1:
1202         case WM8995_LDO_2:
1203         case WM8995_ACCESSORY_DETECT_MODE1:
1204         case WM8995_ACCESSORY_DETECT_MODE2:
1205         case WM8995_HEADPHONE_DETECT1:
1206         case WM8995_HEADPHONE_DETECT2:
1207         case WM8995_MIC_DETECT_1:
1208         case WM8995_MIC_DETECT_2:
1209         case WM8995_CHARGE_PUMP_1:
1210         case WM8995_CLASS_W_1:
1211         case WM8995_DC_SERVO_1:
1212         case WM8995_DC_SERVO_2:
1213         case WM8995_DC_SERVO_3:
1214         case WM8995_DC_SERVO_5:
1215         case WM8995_DC_SERVO_6:
1216         case WM8995_DC_SERVO_7:
1217         case WM8995_DC_SERVO_READBACK_0:
1218         case WM8995_ANALOGUE_HP_1:
1219         case WM8995_ANALOGUE_HP_2:
1220         case WM8995_CHIP_REVISION:
1221         case WM8995_CONTROL_INTERFACE_1:
1222         case WM8995_CONTROL_INTERFACE_2:
1223         case WM8995_WRITE_SEQUENCER_CTRL_1:
1224         case WM8995_WRITE_SEQUENCER_CTRL_2:
1225         case WM8995_AIF1_CLOCKING_1:
1226         case WM8995_AIF1_CLOCKING_2:
1227         case WM8995_AIF2_CLOCKING_1:
1228         case WM8995_AIF2_CLOCKING_2:
1229         case WM8995_CLOCKING_1:
1230         case WM8995_CLOCKING_2:
1231         case WM8995_AIF1_RATE:
1232         case WM8995_AIF2_RATE:
1233         case WM8995_RATE_STATUS:
1234         case WM8995_FLL1_CONTROL_1:
1235         case WM8995_FLL1_CONTROL_2:
1236         case WM8995_FLL1_CONTROL_3:
1237         case WM8995_FLL1_CONTROL_4:
1238         case WM8995_FLL1_CONTROL_5:
1239         case WM8995_FLL2_CONTROL_1:
1240         case WM8995_FLL2_CONTROL_2:
1241         case WM8995_FLL2_CONTROL_3:
1242         case WM8995_FLL2_CONTROL_4:
1243         case WM8995_FLL2_CONTROL_5:
1244         case WM8995_AIF1_CONTROL_1:
1245         case WM8995_AIF1_CONTROL_2:
1246         case WM8995_AIF1_MASTER_SLAVE:
1247         case WM8995_AIF1_BCLK:
1248         case WM8995_AIF1ADC_LRCLK:
1249         case WM8995_AIF1DAC_LRCLK:
1250         case WM8995_AIF1DAC_DATA:
1251         case WM8995_AIF1ADC_DATA:
1252         case WM8995_AIF2_CONTROL_1:
1253         case WM8995_AIF2_CONTROL_2:
1254         case WM8995_AIF2_MASTER_SLAVE:
1255         case WM8995_AIF2_BCLK:
1256         case WM8995_AIF2ADC_LRCLK:
1257         case WM8995_AIF2DAC_LRCLK:
1258         case WM8995_AIF2DAC_DATA:
1259         case WM8995_AIF2ADC_DATA:
1260         case WM8995_AIF1_ADC1_LEFT_VOLUME:
1261         case WM8995_AIF1_ADC1_RIGHT_VOLUME:
1262         case WM8995_AIF1_DAC1_LEFT_VOLUME:
1263         case WM8995_AIF1_DAC1_RIGHT_VOLUME:
1264         case WM8995_AIF1_ADC2_LEFT_VOLUME:
1265         case WM8995_AIF1_ADC2_RIGHT_VOLUME:
1266         case WM8995_AIF1_DAC2_LEFT_VOLUME:
1267         case WM8995_AIF1_DAC2_RIGHT_VOLUME:
1268         case WM8995_AIF1_ADC1_FILTERS:
1269         case WM8995_AIF1_ADC2_FILTERS:
1270         case WM8995_AIF1_DAC1_FILTERS_1:
1271         case WM8995_AIF1_DAC1_FILTERS_2:
1272         case WM8995_AIF1_DAC2_FILTERS_1:
1273         case WM8995_AIF1_DAC2_FILTERS_2:
1274         case WM8995_AIF1_DRC1_1:
1275         case WM8995_AIF1_DRC1_2:
1276         case WM8995_AIF1_DRC1_3:
1277         case WM8995_AIF1_DRC1_4:
1278         case WM8995_AIF1_DRC1_5:
1279         case WM8995_AIF1_DRC2_1:
1280         case WM8995_AIF1_DRC2_2:
1281         case WM8995_AIF1_DRC2_3:
1282         case WM8995_AIF1_DRC2_4:
1283         case WM8995_AIF1_DRC2_5:
1284         case WM8995_AIF1_DAC1_EQ_GAINS_1:
1285         case WM8995_AIF1_DAC1_EQ_GAINS_2:
1286         case WM8995_AIF1_DAC1_EQ_BAND_1_A:
1287         case WM8995_AIF1_DAC1_EQ_BAND_1_B:
1288         case WM8995_AIF1_DAC1_EQ_BAND_1_PG:
1289         case WM8995_AIF1_DAC1_EQ_BAND_2_A:
1290         case WM8995_AIF1_DAC1_EQ_BAND_2_B:
1291         case WM8995_AIF1_DAC1_EQ_BAND_2_C:
1292         case WM8995_AIF1_DAC1_EQ_BAND_2_PG:
1293         case WM8995_AIF1_DAC1_EQ_BAND_3_A:
1294         case WM8995_AIF1_DAC1_EQ_BAND_3_B:
1295         case WM8995_AIF1_DAC1_EQ_BAND_3_C:
1296         case WM8995_AIF1_DAC1_EQ_BAND_3_PG:
1297         case WM8995_AIF1_DAC1_EQ_BAND_4_A:
1298         case WM8995_AIF1_DAC1_EQ_BAND_4_B:
1299         case WM8995_AIF1_DAC1_EQ_BAND_4_C:
1300         case WM8995_AIF1_DAC1_EQ_BAND_4_PG:
1301         case WM8995_AIF1_DAC1_EQ_BAND_5_A:
1302         case WM8995_AIF1_DAC1_EQ_BAND_5_B:
1303         case WM8995_AIF1_DAC1_EQ_BAND_5_PG:
1304         case WM8995_AIF1_DAC2_EQ_GAINS_1:
1305         case WM8995_AIF1_DAC2_EQ_GAINS_2:
1306         case WM8995_AIF1_DAC2_EQ_BAND_1_A:
1307         case WM8995_AIF1_DAC2_EQ_BAND_1_B:
1308         case WM8995_AIF1_DAC2_EQ_BAND_1_PG:
1309         case WM8995_AIF1_DAC2_EQ_BAND_2_A:
1310         case WM8995_AIF1_DAC2_EQ_BAND_2_B:
1311         case WM8995_AIF1_DAC2_EQ_BAND_2_C:
1312         case WM8995_AIF1_DAC2_EQ_BAND_2_PG:
1313         case WM8995_AIF1_DAC2_EQ_BAND_3_A:
1314         case WM8995_AIF1_DAC2_EQ_BAND_3_B:
1315         case WM8995_AIF1_DAC2_EQ_BAND_3_C:
1316         case WM8995_AIF1_DAC2_EQ_BAND_3_PG:
1317         case WM8995_AIF1_DAC2_EQ_BAND_4_A:
1318         case WM8995_AIF1_DAC2_EQ_BAND_4_B:
1319         case WM8995_AIF1_DAC2_EQ_BAND_4_C:
1320         case WM8995_AIF1_DAC2_EQ_BAND_4_PG:
1321         case WM8995_AIF1_DAC2_EQ_BAND_5_A:
1322         case WM8995_AIF1_DAC2_EQ_BAND_5_B:
1323         case WM8995_AIF1_DAC2_EQ_BAND_5_PG:
1324         case WM8995_AIF2_ADC_LEFT_VOLUME:
1325         case WM8995_AIF2_ADC_RIGHT_VOLUME:
1326         case WM8995_AIF2_DAC_LEFT_VOLUME:
1327         case WM8995_AIF2_DAC_RIGHT_VOLUME:
1328         case WM8995_AIF2_ADC_FILTERS:
1329         case WM8995_AIF2_DAC_FILTERS_1:
1330         case WM8995_AIF2_DAC_FILTERS_2:
1331         case WM8995_AIF2_DRC_1:
1332         case WM8995_AIF2_DRC_2:
1333         case WM8995_AIF2_DRC_3:
1334         case WM8995_AIF2_DRC_4:
1335         case WM8995_AIF2_DRC_5:
1336         case WM8995_AIF2_EQ_GAINS_1:
1337         case WM8995_AIF2_EQ_GAINS_2:
1338         case WM8995_AIF2_EQ_BAND_1_A:
1339         case WM8995_AIF2_EQ_BAND_1_B:
1340         case WM8995_AIF2_EQ_BAND_1_PG:
1341         case WM8995_AIF2_EQ_BAND_2_A:
1342         case WM8995_AIF2_EQ_BAND_2_B:
1343         case WM8995_AIF2_EQ_BAND_2_C:
1344         case WM8995_AIF2_EQ_BAND_2_PG:
1345         case WM8995_AIF2_EQ_BAND_3_A:
1346         case WM8995_AIF2_EQ_BAND_3_B:
1347         case WM8995_AIF2_EQ_BAND_3_C:
1348         case WM8995_AIF2_EQ_BAND_3_PG:
1349         case WM8995_AIF2_EQ_BAND_4_A:
1350         case WM8995_AIF2_EQ_BAND_4_B:
1351         case WM8995_AIF2_EQ_BAND_4_C:
1352         case WM8995_AIF2_EQ_BAND_4_PG:
1353         case WM8995_AIF2_EQ_BAND_5_A:
1354         case WM8995_AIF2_EQ_BAND_5_B:
1355         case WM8995_AIF2_EQ_BAND_5_PG:
1356         case WM8995_DAC1_MIXER_VOLUMES:
1357         case WM8995_DAC1_LEFT_MIXER_ROUTING:
1358         case WM8995_DAC1_RIGHT_MIXER_ROUTING:
1359         case WM8995_DAC2_MIXER_VOLUMES:
1360         case WM8995_DAC2_LEFT_MIXER_ROUTING:
1361         case WM8995_DAC2_RIGHT_MIXER_ROUTING:
1362         case WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING:
1363         case WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING:
1364         case WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING:
1365         case WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING:
1366         case WM8995_DAC_SOFTMUTE:
1367         case WM8995_OVERSAMPLING:
1368         case WM8995_SIDETONE:
1369         case WM8995_GPIO_1:
1370         case WM8995_GPIO_2:
1371         case WM8995_GPIO_3:
1372         case WM8995_GPIO_4:
1373         case WM8995_GPIO_5:
1374         case WM8995_GPIO_6:
1375         case WM8995_GPIO_7:
1376         case WM8995_GPIO_8:
1377         case WM8995_GPIO_9:
1378         case WM8995_GPIO_10:
1379         case WM8995_GPIO_11:
1380         case WM8995_GPIO_12:
1381         case WM8995_GPIO_13:
1382         case WM8995_GPIO_14:
1383         case WM8995_PULL_CONTROL_1:
1384         case WM8995_PULL_CONTROL_2:
1385         case WM8995_INTERRUPT_STATUS_1:
1386         case WM8995_INTERRUPT_STATUS_2:
1387         case WM8995_INTERRUPT_RAW_STATUS_2:
1388         case WM8995_INTERRUPT_STATUS_1_MASK:
1389         case WM8995_INTERRUPT_STATUS_2_MASK:
1390         case WM8995_INTERRUPT_CONTROL:
1391         case WM8995_LEFT_PDM_SPEAKER_1:
1392         case WM8995_RIGHT_PDM_SPEAKER_1:
1393         case WM8995_PDM_SPEAKER_1_MUTE_SEQUENCE:
1394         case WM8995_LEFT_PDM_SPEAKER_2:
1395         case WM8995_RIGHT_PDM_SPEAKER_2:
1396         case WM8995_PDM_SPEAKER_2_MUTE_SEQUENCE:
1397                 return true;
1398         default:
1399                 return false;
1400         }
1401 }
1402
1403 static bool wm8995_volatile(struct device *dev, unsigned int reg)
1404 {
1405         switch (reg) {
1406         case WM8995_SOFTWARE_RESET:
1407         case WM8995_DC_SERVO_READBACK_0:
1408         case WM8995_INTERRUPT_STATUS_1:
1409         case WM8995_INTERRUPT_STATUS_2:
1410         case WM8995_INTERRUPT_CONTROL:
1411         case WM8995_ACCESSORY_DETECT_MODE1:
1412         case WM8995_ACCESSORY_DETECT_MODE2:
1413         case WM8995_HEADPHONE_DETECT1:
1414         case WM8995_HEADPHONE_DETECT2:
1415         case WM8995_RATE_STATUS:
1416                 return true;
1417         default:
1418                 return false;
1419         }
1420 }
1421
1422 static int wm8995_aif_mute(struct snd_soc_dai *dai, int mute)
1423 {
1424         struct snd_soc_codec *codec = dai->codec;
1425         int mute_reg;
1426
1427         switch (dai->id) {
1428         case 0:
1429                 mute_reg = WM8995_AIF1_DAC1_FILTERS_1;
1430                 break;
1431         case 1:
1432                 mute_reg = WM8995_AIF2_DAC_FILTERS_1;
1433                 break;
1434         default:
1435                 return -EINVAL;
1436         }
1437
1438         snd_soc_update_bits(codec, mute_reg, WM8995_AIF1DAC1_MUTE_MASK,
1439                             !!mute << WM8995_AIF1DAC1_MUTE_SHIFT);
1440         return 0;
1441 }
1442
1443 static int wm8995_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1444 {
1445         struct snd_soc_codec *codec;
1446         int master;
1447         int aif;
1448
1449         codec = dai->codec;
1450
1451         master = 0;
1452         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1453         case SND_SOC_DAIFMT_CBS_CFS:
1454                 break;
1455         case SND_SOC_DAIFMT_CBM_CFM:
1456                 master = WM8995_AIF1_MSTR;
1457                 break;
1458         default:
1459                 dev_err(dai->dev, "Unknown master/slave configuration\n");
1460                 return -EINVAL;
1461         }
1462
1463         aif = 0;
1464         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1465         case SND_SOC_DAIFMT_DSP_B:
1466                 aif |= WM8995_AIF1_LRCLK_INV;
1467         case SND_SOC_DAIFMT_DSP_A:
1468                 aif |= (0x3 << WM8995_AIF1_FMT_SHIFT);
1469                 break;
1470         case SND_SOC_DAIFMT_I2S:
1471                 aif |= (0x2 << WM8995_AIF1_FMT_SHIFT);
1472                 break;
1473         case SND_SOC_DAIFMT_RIGHT_J:
1474                 break;
1475         case SND_SOC_DAIFMT_LEFT_J:
1476                 aif |= (0x1 << WM8995_AIF1_FMT_SHIFT);
1477                 break;
1478         default:
1479                 dev_err(dai->dev, "Unknown dai format\n");
1480                 return -EINVAL;
1481         }
1482
1483         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1484         case SND_SOC_DAIFMT_DSP_A:
1485         case SND_SOC_DAIFMT_DSP_B:
1486                 /* frame inversion not valid for DSP modes */
1487                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1488                 case SND_SOC_DAIFMT_NB_NF:
1489                         break;
1490                 case SND_SOC_DAIFMT_IB_NF:
1491                         aif |= WM8995_AIF1_BCLK_INV;
1492                         break;
1493                 default:
1494                         return -EINVAL;
1495                 }
1496                 break;
1497
1498         case SND_SOC_DAIFMT_I2S:
1499         case SND_SOC_DAIFMT_RIGHT_J:
1500         case SND_SOC_DAIFMT_LEFT_J:
1501                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1502                 case SND_SOC_DAIFMT_NB_NF:
1503                         break;
1504                 case SND_SOC_DAIFMT_IB_IF:
1505                         aif |= WM8995_AIF1_BCLK_INV | WM8995_AIF1_LRCLK_INV;
1506                         break;
1507                 case SND_SOC_DAIFMT_IB_NF:
1508                         aif |= WM8995_AIF1_BCLK_INV;
1509                         break;
1510                 case SND_SOC_DAIFMT_NB_IF:
1511                         aif |= WM8995_AIF1_LRCLK_INV;
1512                         break;
1513                 default:
1514                         return -EINVAL;
1515                 }
1516                 break;
1517         default:
1518                 return -EINVAL;
1519         }
1520
1521         snd_soc_update_bits(codec, WM8995_AIF1_CONTROL_1,
1522                             WM8995_AIF1_BCLK_INV_MASK |
1523                             WM8995_AIF1_LRCLK_INV_MASK |
1524                             WM8995_AIF1_FMT_MASK, aif);
1525         snd_soc_update_bits(codec, WM8995_AIF1_MASTER_SLAVE,
1526                             WM8995_AIF1_MSTR_MASK, master);
1527         return 0;
1528 }
1529
1530 static const int srs[] = {
1531         8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100,
1532         48000, 88200, 96000
1533 };
1534
1535 static const int fs_ratios[] = {
1536         -1 /* reserved */,
1537         128, 192, 256, 384, 512, 768, 1024, 1408, 1536
1538 };
1539
1540 static const int bclk_divs[] = {
1541         10, 15, 20, 30, 40, 55, 60, 80, 110, 120, 160, 220, 240, 320, 440, 480
1542 };
1543
1544 static int wm8995_hw_params(struct snd_pcm_substream *substream,
1545                             struct snd_pcm_hw_params *params,
1546                             struct snd_soc_dai *dai)
1547 {
1548         struct snd_soc_codec *codec;
1549         struct wm8995_priv *wm8995;
1550         int aif1_reg;
1551         int bclk_reg;
1552         int lrclk_reg;
1553         int rate_reg;
1554         int bclk_rate;
1555         int aif1;
1556         int lrclk, bclk;
1557         int i, rate_val, best, best_val, cur_val;
1558
1559         codec = dai->codec;
1560         wm8995 = snd_soc_codec_get_drvdata(codec);
1561
1562         switch (dai->id) {
1563         case 0:
1564                 aif1_reg = WM8995_AIF1_CONTROL_1;
1565                 bclk_reg = WM8995_AIF1_BCLK;
1566                 rate_reg = WM8995_AIF1_RATE;
1567                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* ||
1568                         wm8995->lrclk_shared[0] */) {
1569                         lrclk_reg = WM8995_AIF1DAC_LRCLK;
1570                 } else {
1571                         lrclk_reg = WM8995_AIF1ADC_LRCLK;
1572                         dev_dbg(codec->dev, "AIF1 using split LRCLK\n");
1573                 }
1574                 break;
1575         case 1:
1576                 aif1_reg = WM8995_AIF2_CONTROL_1;
1577                 bclk_reg = WM8995_AIF2_BCLK;
1578                 rate_reg = WM8995_AIF2_RATE;
1579                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* ||
1580                     wm8995->lrclk_shared[1] */) {
1581                         lrclk_reg = WM8995_AIF2DAC_LRCLK;
1582                 } else {
1583                         lrclk_reg = WM8995_AIF2ADC_LRCLK;
1584                         dev_dbg(codec->dev, "AIF2 using split LRCLK\n");
1585                 }
1586                 break;
1587         default:
1588                 return -EINVAL;
1589         }
1590
1591         bclk_rate = snd_soc_params_to_bclk(params);
1592         if (bclk_rate < 0)
1593                 return bclk_rate;
1594
1595         aif1 = 0;
1596         switch (params_width(params)) {
1597         case 16:
1598                 break;
1599         case 20:
1600                 aif1 |= (0x1 << WM8995_AIF1_WL_SHIFT);
1601                 break;
1602         case 24:
1603                 aif1 |= (0x2 << WM8995_AIF1_WL_SHIFT);
1604                 break;
1605         case 32:
1606                 aif1 |= (0x3 << WM8995_AIF1_WL_SHIFT);
1607                 break;
1608         default:
1609                 dev_err(dai->dev, "Unsupported word length %u\n",
1610                         params_width(params));
1611                 return -EINVAL;
1612         }
1613
1614         /* try to find a suitable sample rate */
1615         for (i = 0; i < ARRAY_SIZE(srs); ++i)
1616                 if (srs[i] == params_rate(params))
1617                         break;
1618         if (i == ARRAY_SIZE(srs)) {
1619                 dev_err(dai->dev, "Sample rate %d is not supported\n",
1620                         params_rate(params));
1621                 return -EINVAL;
1622         }
1623         rate_val = i << WM8995_AIF1_SR_SHIFT;
1624
1625         dev_dbg(dai->dev, "Sample rate is %dHz\n", srs[i]);
1626         dev_dbg(dai->dev, "AIF%dCLK is %dHz, target BCLK %dHz\n",
1627                 dai->id + 1, wm8995->aifclk[dai->id], bclk_rate);
1628
1629         /* AIFCLK/fs ratio; look for a close match in either direction */
1630         best = 1;
1631         best_val = abs((fs_ratios[1] * params_rate(params))
1632                        - wm8995->aifclk[dai->id]);
1633         for (i = 2; i < ARRAY_SIZE(fs_ratios); i++) {
1634                 cur_val = abs((fs_ratios[i] * params_rate(params))
1635                               - wm8995->aifclk[dai->id]);
1636                 if (cur_val >= best_val)
1637                         continue;
1638                 best = i;
1639                 best_val = cur_val;
1640         }
1641         rate_val |= best;
1642
1643         dev_dbg(dai->dev, "Selected AIF%dCLK/fs = %d\n",
1644                 dai->id + 1, fs_ratios[best]);
1645
1646         /*
1647          * We may not get quite the right frequency if using
1648          * approximate clocks so look for the closest match that is
1649          * higher than the target (we need to ensure that there enough
1650          * BCLKs to clock out the samples).
1651          */
1652         best = 0;
1653         bclk = 0;
1654         for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
1655                 cur_val = (wm8995->aifclk[dai->id] * 10 / bclk_divs[i]) - bclk_rate;
1656                 if (cur_val < 0) /* BCLK table is sorted */
1657                         break;
1658                 best = i;
1659         }
1660         bclk |= best << WM8995_AIF1_BCLK_DIV_SHIFT;
1661
1662         bclk_rate = wm8995->aifclk[dai->id] * 10 / bclk_divs[best];
1663         dev_dbg(dai->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n",
1664                 bclk_divs[best], bclk_rate);
1665
1666         lrclk = bclk_rate / params_rate(params);
1667         dev_dbg(dai->dev, "Using LRCLK rate %d for actual LRCLK %dHz\n",
1668                 lrclk, bclk_rate / lrclk);
1669
1670         snd_soc_update_bits(codec, aif1_reg,
1671                             WM8995_AIF1_WL_MASK, aif1);
1672         snd_soc_update_bits(codec, bclk_reg,
1673                             WM8995_AIF1_BCLK_DIV_MASK, bclk);
1674         snd_soc_update_bits(codec, lrclk_reg,
1675                             WM8995_AIF1DAC_RATE_MASK, lrclk);
1676         snd_soc_update_bits(codec, rate_reg,
1677                             WM8995_AIF1_SR_MASK |
1678                             WM8995_AIF1CLK_RATE_MASK, rate_val);
1679         return 0;
1680 }
1681
1682 static int wm8995_set_tristate(struct snd_soc_dai *codec_dai, int tristate)
1683 {
1684         struct snd_soc_codec *codec = codec_dai->codec;
1685         int reg, val, mask;
1686
1687         switch (codec_dai->id) {
1688         case 0:
1689                 reg = WM8995_AIF1_MASTER_SLAVE;
1690                 mask = WM8995_AIF1_TRI;
1691                 break;
1692         case 1:
1693                 reg = WM8995_AIF2_MASTER_SLAVE;
1694                 mask = WM8995_AIF2_TRI;
1695                 break;
1696         case 2:
1697                 reg = WM8995_POWER_MANAGEMENT_5;
1698                 mask = WM8995_AIF3_TRI;
1699                 break;
1700         default:
1701                 return -EINVAL;
1702         }
1703
1704         if (tristate)
1705                 val = mask;
1706         else
1707                 val = 0;
1708
1709         return snd_soc_update_bits(codec, reg, mask, val);
1710 }
1711
1712 /* The size in bits of the FLL divide multiplied by 10
1713  * to allow rounding later */
1714 #define FIXED_FLL_SIZE ((1 << 16) * 10)
1715
1716 struct fll_div {
1717         u16 outdiv;
1718         u16 n;
1719         u16 k;
1720         u16 clk_ref_div;
1721         u16 fll_fratio;
1722 };
1723
1724 static int wm8995_get_fll_config(struct fll_div *fll,
1725                                  int freq_in, int freq_out)
1726 {
1727         u64 Kpart;
1728         unsigned int K, Ndiv, Nmod;
1729
1730         pr_debug("FLL input=%dHz, output=%dHz\n", freq_in, freq_out);
1731
1732         /* Scale the input frequency down to <= 13.5MHz */
1733         fll->clk_ref_div = 0;
1734         while (freq_in > 13500000) {
1735                 fll->clk_ref_div++;
1736                 freq_in /= 2;
1737
1738                 if (fll->clk_ref_div > 3)
1739                         return -EINVAL;
1740         }
1741         pr_debug("CLK_REF_DIV=%d, Fref=%dHz\n", fll->clk_ref_div, freq_in);
1742
1743         /* Scale the output to give 90MHz<=Fvco<=100MHz */
1744         fll->outdiv = 3;
1745         while (freq_out * (fll->outdiv + 1) < 90000000) {
1746                 fll->outdiv++;
1747                 if (fll->outdiv > 63)
1748                         return -EINVAL;
1749         }
1750         freq_out *= fll->outdiv + 1;
1751         pr_debug("OUTDIV=%d, Fvco=%dHz\n", fll->outdiv, freq_out);
1752
1753         if (freq_in > 1000000) {
1754                 fll->fll_fratio = 0;
1755         } else if (freq_in > 256000) {
1756                 fll->fll_fratio = 1;
1757                 freq_in *= 2;
1758         } else if (freq_in > 128000) {
1759                 fll->fll_fratio = 2;
1760                 freq_in *= 4;
1761         } else if (freq_in > 64000) {
1762                 fll->fll_fratio = 3;
1763                 freq_in *= 8;
1764         } else {
1765                 fll->fll_fratio = 4;
1766                 freq_in *= 16;
1767         }
1768         pr_debug("FLL_FRATIO=%d, Fref=%dHz\n", fll->fll_fratio, freq_in);
1769
1770         /* Now, calculate N.K */
1771         Ndiv = freq_out / freq_in;
1772
1773         fll->n = Ndiv;
1774         Nmod = freq_out % freq_in;
1775         pr_debug("Nmod=%d\n", Nmod);
1776
1777         /* Calculate fractional part - scale up so we can round. */
1778         Kpart = FIXED_FLL_SIZE * (long long)Nmod;
1779
1780         do_div(Kpart, freq_in);
1781
1782         K = Kpart & 0xFFFFFFFF;
1783
1784         if ((K % 10) >= 5)
1785                 K += 5;
1786
1787         /* Move down to proper range now rounding is done */
1788         fll->k = K / 10;
1789
1790         pr_debug("N=%x K=%x\n", fll->n, fll->k);
1791
1792         return 0;
1793 }
1794
1795 static int wm8995_set_fll(struct snd_soc_dai *dai, int id,
1796                           int src, unsigned int freq_in,
1797                           unsigned int freq_out)
1798 {
1799         struct snd_soc_codec *codec;
1800         struct wm8995_priv *wm8995;
1801         int reg_offset, ret;
1802         struct fll_div fll;
1803         u16 reg, aif1, aif2;
1804
1805         codec = dai->codec;
1806         wm8995 = snd_soc_codec_get_drvdata(codec);
1807
1808         aif1 = snd_soc_read(codec, WM8995_AIF1_CLOCKING_1)
1809                & WM8995_AIF1CLK_ENA;
1810
1811         aif2 = snd_soc_read(codec, WM8995_AIF2_CLOCKING_1)
1812                & WM8995_AIF2CLK_ENA;
1813
1814         switch (id) {
1815         case WM8995_FLL1:
1816                 reg_offset = 0;
1817                 id = 0;
1818                 break;
1819         case WM8995_FLL2:
1820                 reg_offset = 0x20;
1821                 id = 1;
1822                 break;
1823         default:
1824                 return -EINVAL;
1825         }
1826
1827         switch (src) {
1828         case 0:
1829                 /* Allow no source specification when stopping */
1830                 if (freq_out)
1831                         return -EINVAL;
1832                 break;
1833         case WM8995_FLL_SRC_MCLK1:
1834         case WM8995_FLL_SRC_MCLK2:
1835         case WM8995_FLL_SRC_LRCLK:
1836         case WM8995_FLL_SRC_BCLK:
1837                 break;
1838         default:
1839                 return -EINVAL;
1840         }
1841
1842         /* Are we changing anything? */
1843         if (wm8995->fll[id].src == src &&
1844             wm8995->fll[id].in == freq_in && wm8995->fll[id].out == freq_out)
1845                 return 0;
1846
1847         /* If we're stopping the FLL redo the old config - no
1848          * registers will actually be written but we avoid GCC flow
1849          * analysis bugs spewing warnings.
1850          */
1851         if (freq_out)
1852                 ret = wm8995_get_fll_config(&fll, freq_in, freq_out);
1853         else
1854                 ret = wm8995_get_fll_config(&fll, wm8995->fll[id].in,
1855                                             wm8995->fll[id].out);
1856         if (ret < 0)
1857                 return ret;
1858
1859         /* Gate the AIF clocks while we reclock */
1860         snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1,
1861                             WM8995_AIF1CLK_ENA_MASK, 0);
1862         snd_soc_update_bits(codec, WM8995_AIF2_CLOCKING_1,
1863                             WM8995_AIF2CLK_ENA_MASK, 0);
1864
1865         /* We always need to disable the FLL while reconfiguring */
1866         snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_1 + reg_offset,
1867                             WM8995_FLL1_ENA_MASK, 0);
1868
1869         reg = (fll.outdiv << WM8995_FLL1_OUTDIV_SHIFT) |
1870               (fll.fll_fratio << WM8995_FLL1_FRATIO_SHIFT);
1871         snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_2 + reg_offset,
1872                             WM8995_FLL1_OUTDIV_MASK |
1873                             WM8995_FLL1_FRATIO_MASK, reg);
1874
1875         snd_soc_write(codec, WM8995_FLL1_CONTROL_3 + reg_offset, fll.k);
1876
1877         snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_4 + reg_offset,
1878                             WM8995_FLL1_N_MASK,
1879                             fll.n << WM8995_FLL1_N_SHIFT);
1880
1881         snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_5 + reg_offset,
1882                             WM8995_FLL1_REFCLK_DIV_MASK |
1883                             WM8995_FLL1_REFCLK_SRC_MASK,
1884                             (fll.clk_ref_div << WM8995_FLL1_REFCLK_DIV_SHIFT) |
1885                             (src - 1));
1886
1887         if (freq_out)
1888                 snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_1 + reg_offset,
1889                                     WM8995_FLL1_ENA_MASK, WM8995_FLL1_ENA);
1890
1891         wm8995->fll[id].in = freq_in;
1892         wm8995->fll[id].out = freq_out;
1893         wm8995->fll[id].src = src;
1894
1895         /* Enable any gated AIF clocks */
1896         snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1,
1897                             WM8995_AIF1CLK_ENA_MASK, aif1);
1898         snd_soc_update_bits(codec, WM8995_AIF2_CLOCKING_1,
1899                             WM8995_AIF2CLK_ENA_MASK, aif2);
1900
1901         configure_clock(codec);
1902
1903         return 0;
1904 }
1905
1906 static int wm8995_set_dai_sysclk(struct snd_soc_dai *dai,
1907                                  int clk_id, unsigned int freq, int dir)
1908 {
1909         struct snd_soc_codec *codec;
1910         struct wm8995_priv *wm8995;
1911
1912         codec = dai->codec;
1913         wm8995 = snd_soc_codec_get_drvdata(codec);
1914
1915         switch (dai->id) {
1916         case 0:
1917         case 1:
1918                 break;
1919         default:
1920                 /* AIF3 shares clocking with AIF1/2 */
1921                 return -EINVAL;
1922         }
1923
1924         switch (clk_id) {
1925         case WM8995_SYSCLK_MCLK1:
1926                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1;
1927                 wm8995->mclk[0] = freq;
1928                 dev_dbg(dai->dev, "AIF%d using MCLK1 at %uHz\n",
1929                         dai->id + 1, freq);
1930                 break;
1931         case WM8995_SYSCLK_MCLK2:
1932                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1;
1933                 wm8995->mclk[1] = freq;
1934                 dev_dbg(dai->dev, "AIF%d using MCLK2 at %uHz\n",
1935                         dai->id + 1, freq);
1936                 break;
1937         case WM8995_SYSCLK_FLL1:
1938                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL1;
1939                 dev_dbg(dai->dev, "AIF%d using FLL1\n", dai->id + 1);
1940                 break;
1941         case WM8995_SYSCLK_FLL2:
1942                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL2;
1943                 dev_dbg(dai->dev, "AIF%d using FLL2\n", dai->id + 1);
1944                 break;
1945         case WM8995_SYSCLK_OPCLK:
1946         default:
1947                 dev_err(dai->dev, "Unknown clock source %d\n", clk_id);
1948                 return -EINVAL;
1949         }
1950
1951         configure_clock(codec);
1952
1953         return 0;
1954 }
1955
1956 static int wm8995_set_bias_level(struct snd_soc_codec *codec,
1957                                  enum snd_soc_bias_level level)
1958 {
1959         struct wm8995_priv *wm8995;
1960         int ret;
1961
1962         wm8995 = snd_soc_codec_get_drvdata(codec);
1963         switch (level) {
1964         case SND_SOC_BIAS_ON:
1965         case SND_SOC_BIAS_PREPARE:
1966                 break;
1967         case SND_SOC_BIAS_STANDBY:
1968                 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
1969                         ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies),
1970                                                     wm8995->supplies);
1971                         if (ret)
1972                                 return ret;
1973
1974                         ret = regcache_sync(wm8995->regmap);
1975                         if (ret) {
1976                                 dev_err(codec->dev,
1977                                         "Failed to sync cache: %d\n", ret);
1978                                 return ret;
1979                         }
1980
1981                         snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
1982                                             WM8995_BG_ENA_MASK, WM8995_BG_ENA);
1983                 }
1984                 break;
1985         case SND_SOC_BIAS_OFF:
1986                 snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
1987                                     WM8995_BG_ENA_MASK, 0);
1988                 regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies),
1989                                        wm8995->supplies);
1990                 break;
1991         }
1992
1993         codec->dapm.bias_level = level;
1994         return 0;
1995 }
1996
1997 static int wm8995_remove(struct snd_soc_codec *codec)
1998 {
1999         struct wm8995_priv *wm8995;
2000         int i;
2001
2002         wm8995 = snd_soc_codec_get_drvdata(codec);
2003
2004         for (i = 0; i < ARRAY_SIZE(wm8995->supplies); ++i)
2005                 regulator_unregister_notifier(wm8995->supplies[i].consumer,
2006                                               &wm8995->disable_nb[i]);
2007
2008         regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2009         return 0;
2010 }
2011
2012 static int wm8995_probe(struct snd_soc_codec *codec)
2013 {
2014         struct wm8995_priv *wm8995;
2015         int i;
2016         int ret;
2017
2018         wm8995 = snd_soc_codec_get_drvdata(codec);
2019         wm8995->codec = codec;
2020
2021         for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++)
2022                 wm8995->supplies[i].supply = wm8995_supply_names[i];
2023
2024         ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8995->supplies),
2025                                  wm8995->supplies);
2026         if (ret) {
2027                 dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
2028                 return ret;
2029         }
2030
2031         wm8995->disable_nb[0].notifier_call = wm8995_regulator_event_0;
2032         wm8995->disable_nb[1].notifier_call = wm8995_regulator_event_1;
2033         wm8995->disable_nb[2].notifier_call = wm8995_regulator_event_2;
2034         wm8995->disable_nb[3].notifier_call = wm8995_regulator_event_3;
2035         wm8995->disable_nb[4].notifier_call = wm8995_regulator_event_4;
2036         wm8995->disable_nb[5].notifier_call = wm8995_regulator_event_5;
2037         wm8995->disable_nb[6].notifier_call = wm8995_regulator_event_6;
2038         wm8995->disable_nb[7].notifier_call = wm8995_regulator_event_7;
2039
2040         /* This should really be moved into the regulator core */
2041         for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++) {
2042                 ret = regulator_register_notifier(wm8995->supplies[i].consumer,
2043                                                   &wm8995->disable_nb[i]);
2044                 if (ret) {
2045                         dev_err(codec->dev,
2046                                 "Failed to register regulator notifier: %d\n",
2047                                 ret);
2048                 }
2049         }
2050
2051         ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies),
2052                                     wm8995->supplies);
2053         if (ret) {
2054                 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
2055                 goto err_reg_get;
2056         }
2057
2058         ret = snd_soc_read(codec, WM8995_SOFTWARE_RESET);
2059         if (ret < 0) {
2060                 dev_err(codec->dev, "Failed to read device ID: %d\n", ret);
2061                 goto err_reg_enable;
2062         }
2063
2064         if (ret != 0x8995) {
2065                 dev_err(codec->dev, "Invalid device ID: %#x\n", ret);
2066                 ret = -EINVAL;
2067                 goto err_reg_enable;
2068         }
2069
2070         ret = snd_soc_write(codec, WM8995_SOFTWARE_RESET, 0);
2071         if (ret < 0) {
2072                 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
2073                 goto err_reg_enable;
2074         }
2075
2076         /* Latch volume updates (right only; we always do left then right). */
2077         snd_soc_update_bits(codec, WM8995_AIF1_DAC1_RIGHT_VOLUME,
2078                             WM8995_AIF1DAC1_VU_MASK, WM8995_AIF1DAC1_VU);
2079         snd_soc_update_bits(codec, WM8995_AIF1_DAC2_RIGHT_VOLUME,
2080                             WM8995_AIF1DAC2_VU_MASK, WM8995_AIF1DAC2_VU);
2081         snd_soc_update_bits(codec, WM8995_AIF2_DAC_RIGHT_VOLUME,
2082                             WM8995_AIF2DAC_VU_MASK, WM8995_AIF2DAC_VU);
2083         snd_soc_update_bits(codec, WM8995_AIF1_ADC1_RIGHT_VOLUME,
2084                             WM8995_AIF1ADC1_VU_MASK, WM8995_AIF1ADC1_VU);
2085         snd_soc_update_bits(codec, WM8995_AIF1_ADC2_RIGHT_VOLUME,
2086                             WM8995_AIF1ADC2_VU_MASK, WM8995_AIF1ADC2_VU);
2087         snd_soc_update_bits(codec, WM8995_AIF2_ADC_RIGHT_VOLUME,
2088                             WM8995_AIF2ADC_VU_MASK, WM8995_AIF1ADC2_VU);
2089         snd_soc_update_bits(codec, WM8995_DAC1_RIGHT_VOLUME,
2090                             WM8995_DAC1_VU_MASK, WM8995_DAC1_VU);
2091         snd_soc_update_bits(codec, WM8995_DAC2_RIGHT_VOLUME,
2092                             WM8995_DAC2_VU_MASK, WM8995_DAC2_VU);
2093         snd_soc_update_bits(codec, WM8995_RIGHT_LINE_INPUT_1_VOLUME,
2094                             WM8995_IN1_VU_MASK, WM8995_IN1_VU);
2095
2096         wm8995_update_class_w(codec);
2097
2098         return 0;
2099
2100 err_reg_enable:
2101         regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2102 err_reg_get:
2103         regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2104         return ret;
2105 }
2106
2107 #define WM8995_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
2108                         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
2109
2110 static const struct snd_soc_dai_ops wm8995_aif1_dai_ops = {
2111         .set_sysclk = wm8995_set_dai_sysclk,
2112         .set_fmt = wm8995_set_dai_fmt,
2113         .hw_params = wm8995_hw_params,
2114         .digital_mute = wm8995_aif_mute,
2115         .set_pll = wm8995_set_fll,
2116         .set_tristate = wm8995_set_tristate,
2117 };
2118
2119 static const struct snd_soc_dai_ops wm8995_aif2_dai_ops = {
2120         .set_sysclk = wm8995_set_dai_sysclk,
2121         .set_fmt = wm8995_set_dai_fmt,
2122         .hw_params = wm8995_hw_params,
2123         .digital_mute = wm8995_aif_mute,
2124         .set_pll = wm8995_set_fll,
2125         .set_tristate = wm8995_set_tristate,
2126 };
2127
2128 static const struct snd_soc_dai_ops wm8995_aif3_dai_ops = {
2129         .set_tristate = wm8995_set_tristate,
2130 };
2131
2132 static struct snd_soc_dai_driver wm8995_dai[] = {
2133         {
2134                 .name = "wm8995-aif1",
2135                 .playback = {
2136                         .stream_name = "AIF1 Playback",
2137                         .channels_min = 2,
2138                         .channels_max = 2,
2139                         .rates = SNDRV_PCM_RATE_8000_96000,
2140                         .formats = WM8995_FORMATS
2141                 },
2142                 .capture = {
2143                         .stream_name = "AIF1 Capture",
2144                         .channels_min = 2,
2145                         .channels_max = 2,
2146                         .rates = SNDRV_PCM_RATE_8000_48000,
2147                         .formats = WM8995_FORMATS
2148                 },
2149                 .ops = &wm8995_aif1_dai_ops
2150         },
2151         {
2152                 .name = "wm8995-aif2",
2153                 .playback = {
2154                         .stream_name = "AIF2 Playback",
2155                         .channels_min = 2,
2156                         .channels_max = 2,
2157                         .rates = SNDRV_PCM_RATE_8000_96000,
2158                         .formats = WM8995_FORMATS
2159                 },
2160                 .capture = {
2161                         .stream_name = "AIF2 Capture",
2162                         .channels_min = 2,
2163                         .channels_max = 2,
2164                         .rates = SNDRV_PCM_RATE_8000_48000,
2165                         .formats = WM8995_FORMATS
2166                 },
2167                 .ops = &wm8995_aif2_dai_ops
2168         },
2169         {
2170                 .name = "wm8995-aif3",
2171                 .playback = {
2172                         .stream_name = "AIF3 Playback",
2173                         .channels_min = 2,
2174                         .channels_max = 2,
2175                         .rates = SNDRV_PCM_RATE_8000_96000,
2176                         .formats = WM8995_FORMATS
2177                 },
2178                 .capture = {
2179                         .stream_name = "AIF3 Capture",
2180                         .channels_min = 2,
2181                         .channels_max = 2,
2182                         .rates = SNDRV_PCM_RATE_8000_48000,
2183                         .formats = WM8995_FORMATS
2184                 },
2185                 .ops = &wm8995_aif3_dai_ops
2186         }
2187 };
2188
2189 static struct snd_soc_codec_driver soc_codec_dev_wm8995 = {
2190         .probe = wm8995_probe,
2191         .remove = wm8995_remove,
2192         .set_bias_level = wm8995_set_bias_level,
2193         .idle_bias_off = true,
2194
2195         .controls = wm8995_snd_controls,
2196         .num_controls = ARRAY_SIZE(wm8995_snd_controls),
2197         .dapm_widgets = wm8995_dapm_widgets,
2198         .num_dapm_widgets = ARRAY_SIZE(wm8995_dapm_widgets),
2199         .dapm_routes = wm8995_intercon,
2200         .num_dapm_routes = ARRAY_SIZE(wm8995_intercon),
2201 };
2202
2203 static struct regmap_config wm8995_regmap = {
2204         .reg_bits = 16,
2205         .val_bits = 16,
2206
2207         .max_register = WM8995_MAX_REGISTER,
2208         .reg_defaults = wm8995_reg_defaults,
2209         .num_reg_defaults = ARRAY_SIZE(wm8995_reg_defaults),
2210         .volatile_reg = wm8995_volatile,
2211         .readable_reg = wm8995_readable,
2212         .cache_type = REGCACHE_RBTREE,
2213 };
2214
2215 #if defined(CONFIG_SPI_MASTER)
2216 static int wm8995_spi_probe(struct spi_device *spi)
2217 {
2218         struct wm8995_priv *wm8995;
2219         int ret;
2220
2221         wm8995 = devm_kzalloc(&spi->dev, sizeof(*wm8995), GFP_KERNEL);
2222         if (!wm8995)
2223                 return -ENOMEM;
2224
2225         spi_set_drvdata(spi, wm8995);
2226
2227         wm8995->regmap = devm_regmap_init_spi(spi, &wm8995_regmap);
2228         if (IS_ERR(wm8995->regmap)) {
2229                 ret = PTR_ERR(wm8995->regmap);
2230                 dev_err(&spi->dev, "Failed to register regmap: %d\n", ret);
2231                 return ret;
2232         }
2233
2234         ret = snd_soc_register_codec(&spi->dev,
2235                                      &soc_codec_dev_wm8995, wm8995_dai,
2236                                      ARRAY_SIZE(wm8995_dai));
2237         return ret;
2238 }
2239
2240 static int wm8995_spi_remove(struct spi_device *spi)
2241 {
2242         snd_soc_unregister_codec(&spi->dev);
2243         return 0;
2244 }
2245
2246 static struct spi_driver wm8995_spi_driver = {
2247         .driver = {
2248                 .name = "wm8995",
2249                 .owner = THIS_MODULE,
2250         },
2251         .probe = wm8995_spi_probe,
2252         .remove = wm8995_spi_remove
2253 };
2254 #endif
2255
2256 #if IS_ENABLED(CONFIG_I2C)
2257 static int wm8995_i2c_probe(struct i2c_client *i2c,
2258                             const struct i2c_device_id *id)
2259 {
2260         struct wm8995_priv *wm8995;
2261         int ret;
2262
2263         wm8995 = devm_kzalloc(&i2c->dev, sizeof(*wm8995), GFP_KERNEL);
2264         if (!wm8995)
2265                 return -ENOMEM;
2266
2267         i2c_set_clientdata(i2c, wm8995);
2268
2269         wm8995->regmap = devm_regmap_init_i2c(i2c, &wm8995_regmap);
2270         if (IS_ERR(wm8995->regmap)) {
2271                 ret = PTR_ERR(wm8995->regmap);
2272                 dev_err(&i2c->dev, "Failed to register regmap: %d\n", ret);
2273                 return ret;
2274         }
2275
2276         ret = snd_soc_register_codec(&i2c->dev,
2277                                      &soc_codec_dev_wm8995, wm8995_dai,
2278                                      ARRAY_SIZE(wm8995_dai));
2279         if (ret < 0)
2280                 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
2281
2282         return ret;
2283 }
2284
2285 static int wm8995_i2c_remove(struct i2c_client *client)
2286 {
2287         snd_soc_unregister_codec(&client->dev);
2288         return 0;
2289 }
2290
2291 static const struct i2c_device_id wm8995_i2c_id[] = {
2292         {"wm8995", 0},
2293         {}
2294 };
2295
2296 MODULE_DEVICE_TABLE(i2c, wm8995_i2c_id);
2297
2298 static struct i2c_driver wm8995_i2c_driver = {
2299         .driver = {
2300                 .name = "wm8995",
2301                 .owner = THIS_MODULE,
2302         },
2303         .probe = wm8995_i2c_probe,
2304         .remove = wm8995_i2c_remove,
2305         .id_table = wm8995_i2c_id
2306 };
2307 #endif
2308
2309 static int __init wm8995_modinit(void)
2310 {
2311         int ret = 0;
2312
2313 #if IS_ENABLED(CONFIG_I2C)
2314         ret = i2c_add_driver(&wm8995_i2c_driver);
2315         if (ret) {
2316                 printk(KERN_ERR "Failed to register wm8995 I2C driver: %d\n",
2317                        ret);
2318         }
2319 #endif
2320 #if defined(CONFIG_SPI_MASTER)
2321         ret = spi_register_driver(&wm8995_spi_driver);
2322         if (ret) {
2323                 printk(KERN_ERR "Failed to register wm8995 SPI driver: %d\n",
2324                        ret);
2325         }
2326 #endif
2327         return ret;
2328 }
2329
2330 module_init(wm8995_modinit);
2331
2332 static void __exit wm8995_exit(void)
2333 {
2334 #if IS_ENABLED(CONFIG_I2C)
2335         i2c_del_driver(&wm8995_i2c_driver);
2336 #endif
2337 #if defined(CONFIG_SPI_MASTER)
2338         spi_unregister_driver(&wm8995_spi_driver);
2339 #endif
2340 }
2341
2342 module_exit(wm8995_exit);
2343
2344 MODULE_DESCRIPTION("ASoC WM8995 driver");
2345 MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>");
2346 MODULE_LICENSE("GPL");