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 const 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 const 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 const SOC_ENUM_SINGLE_DECL(dmic_src1_enum, WM8995_POWER_MANAGEMENT_5,
 441                                   8, dmic_src_text);
 442 static const 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         unsigned int reg;
 538         const char *clk;
 539
 540         reg = snd_soc_read(source->codec, WM8995_CLOCKING_1);
 541         /* Check what we're currently using for CLK_SYS */
 542         if (reg & WM8995_SYSCLK_SRC)
 543                 clk = "AIF2CLK";
 544         else
 545                 clk = "AIF1CLK";
 546         return !strcmp(source->name, clk);
 547 }
 548
 549 static int wm8995_put_class_w(struct snd_kcontrol *kcontrol,
 550                               struct snd_ctl_elem_value *ucontrol)
 551 {
 552         struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol);
 553         int ret;
 554
 555         ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
 556         wm8995_update_class_w(codec);
 557         return ret;
 558 }
 559
 560 static int hp_supply_event(struct snd_soc_dapm_widget *w,
 561                            struct snd_kcontrol *kcontrol, int event)
 562 {
 563         struct snd_soc_codec *codec;
 564         struct wm8995_priv *wm8995;
 565
 566         codec = w->codec;
 567         wm8995 = snd_soc_codec_get_drvdata(codec);
 568
 569         switch (event) {
 570         case SND_SOC_DAPM_PRE_PMU:
 571                 /* Enable the headphone amp */
 572                 snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 573                                     WM8995_HPOUT1L_ENA_MASK |
 574                                     WM8995_HPOUT1R_ENA_MASK,
 575                                     WM8995_HPOUT1L_ENA |
 576                                     WM8995_HPOUT1R_ENA);
 577
 578                 /* Enable the second stage */
 579                 snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1,
 580                                     WM8995_HPOUT1L_DLY_MASK |
 581                                     WM8995_HPOUT1R_DLY_MASK,
 582                                     WM8995_HPOUT1L_DLY |
 583                                     WM8995_HPOUT1R_DLY);
 584                 break;
 585         case SND_SOC_DAPM_PRE_PMD:
 586                 snd_soc_update_bits(codec, WM8995_CHARGE_PUMP_1,
 587                                     WM8995_CP_ENA_MASK, 0);
 588                 break;
 589         }
 590
 591         return 0;
 592 }
 593
 594 static void dc_servo_cmd(struct snd_soc_codec *codec,
 595                          unsigned int reg, unsigned int val, unsigned int mask)
 596 {
 597         int timeout = 10;
 598
 599         dev_dbg(codec->dev, "%s: reg = %#x, val = %#x, mask = %#x\n",
 600                 __func__, reg, val, mask);
 601
 602         snd_soc_write(codec, reg, val);
 603         while (timeout--) {
 604                 msleep(10);
 605                 val = snd_soc_read(codec, WM8995_DC_SERVO_READBACK_0);
 606                 if ((val & mask) == mask)
 607                         return;
 608         }
 609
 610         dev_err(codec->dev, "Timed out waiting for DC Servo\n");
 611 }
 612
 613 static int hp_event(struct snd_soc_dapm_widget *w,
 614                     struct snd_kcontrol *kcontrol, int event)
 615 {
 616         struct snd_soc_codec *codec;
 617         unsigned int reg;
 618
 619         codec = w->codec;
 620         reg = snd_soc_read(codec, WM8995_ANALOGUE_HP_1);
 621
 622         switch (event) {
 623         case SND_SOC_DAPM_POST_PMU:
 624                 snd_soc_update_bits(codec, WM8995_CHARGE_PUMP_1,
 625                                     WM8995_CP_ENA_MASK, WM8995_CP_ENA);
 626
 627                 msleep(5);
 628
 629                 snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 630                                     WM8995_HPOUT1L_ENA_MASK |
 631                                     WM8995_HPOUT1R_ENA_MASK,
 632                                     WM8995_HPOUT1L_ENA | WM8995_HPOUT1R_ENA);
 633
 634                 udelay(20);
 635
 636                 reg |= WM8995_HPOUT1L_DLY | WM8995_HPOUT1R_DLY;
 637                 snd_soc_write(codec, WM8995_ANALOGUE_HP_1, reg);
 638
 639                 snd_soc_write(codec, WM8995_DC_SERVO_1, WM8995_DCS_ENA_CHAN_0 |
 640                               WM8995_DCS_ENA_CHAN_1);
 641
 642                 dc_servo_cmd(codec, WM8995_DC_SERVO_2,
 643                              WM8995_DCS_TRIG_STARTUP_0 |
 644                              WM8995_DCS_TRIG_STARTUP_1,
 645                              WM8995_DCS_TRIG_DAC_WR_0 |
 646                              WM8995_DCS_TRIG_DAC_WR_1);
 647
 648                 reg |= WM8995_HPOUT1R_OUTP | WM8995_HPOUT1R_RMV_SHORT |
 649                        WM8995_HPOUT1L_OUTP | WM8995_HPOUT1L_RMV_SHORT;
 650                 snd_soc_write(codec, WM8995_ANALOGUE_HP_1, reg);
 651
 652                 break;
 653         case SND_SOC_DAPM_PRE_PMD:
 654                 snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1,
 655                                     WM8995_HPOUT1L_OUTP_MASK |
 656                                     WM8995_HPOUT1R_OUTP_MASK |
 657                                     WM8995_HPOUT1L_RMV_SHORT_MASK |
 658                                     WM8995_HPOUT1R_RMV_SHORT_MASK, 0);
 659
 660                 snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1,
 661                                     WM8995_HPOUT1L_DLY_MASK |
 662                                     WM8995_HPOUT1R_DLY_MASK, 0);
 663
 664                 snd_soc_write(codec, WM8995_DC_SERVO_1, 0);
 665
 666                 snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 667                                     WM8995_HPOUT1L_ENA_MASK |
 668                                     WM8995_HPOUT1R_ENA_MASK,
 669                                     0);
 670                 break;
 671         }
 672
 673         return 0;
 674 }
 675
 676 static int configure_aif_clock(struct snd_soc_codec *codec, int aif)
 677 {
 678         struct wm8995_priv *wm8995;
 679         int rate;
 680         int reg1 = 0;
 681         int offset;
 682
 683         wm8995 = snd_soc_codec_get_drvdata(codec);
 684
 685         if (aif)
 686                 offset = 4;
 687         else
 688                 offset = 0;
 689
 690         switch (wm8995->sysclk[aif]) {
 691         case WM8995_SYSCLK_MCLK1:
 692                 rate = wm8995->mclk[0];
 693                 break;
 694         case WM8995_SYSCLK_MCLK2:
 695                 reg1 |= 0x8;
 696                 rate = wm8995->mclk[1];
 697                 break;
 698         case WM8995_SYSCLK_FLL1:
 699                 reg1 |= 0x10;
 700                 rate = wm8995->fll[0].out;
 701                 break;
 702         case WM8995_SYSCLK_FLL2:
 703                 reg1 |= 0x18;
 704                 rate = wm8995->fll[1].out;
 705                 break;
 706         default:
 707                 return -EINVAL;
 708         }
 709
 710         if (rate >= 13500000) {
 711                 rate /= 2;
 712                 reg1 |= WM8995_AIF1CLK_DIV;
 713
 714                 dev_dbg(codec->dev, "Dividing AIF%d clock to %dHz\n",
 715                         aif + 1, rate);
 716         }
 717
 718         wm8995->aifclk[aif] = rate;
 719
 720         snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1 + offset,
 721                             WM8995_AIF1CLK_SRC_MASK | WM8995_AIF1CLK_DIV_MASK,
 722                             reg1);
 723         return 0;
 724 }
 725
 726 static int configure_clock(struct snd_soc_codec *codec)
 727 {
 728         struct wm8995_priv *wm8995;
 729         int change, new;
 730
 731         wm8995 = snd_soc_codec_get_drvdata(codec);
 732
 733         /* Bring up the AIF clocks first */
 734         configure_aif_clock(codec, 0);
 735         configure_aif_clock(codec, 1);
 736
 737         /*
 738          * Then switch CLK_SYS over to the higher of them; a change
 739          * can only happen as a result of a clocking change which can
 740          * only be made outside of DAPM so we can safely redo the
 741          * clocking.
 742          */
 743
 744         /* If they're equal it doesn't matter which is used */
 745         if (wm8995->aifclk[0] == wm8995->aifclk[1])
 746                 return 0;
 747
 748         if (wm8995->aifclk[0] < wm8995->aifclk[1])
 749                 new = WM8995_SYSCLK_SRC;
 750         else
 751                 new = 0;
 752
 753         change = snd_soc_update_bits(codec, WM8995_CLOCKING_1,
 754                                      WM8995_SYSCLK_SRC_MASK, new);
 755         if (!change)
 756                 return 0;
 757
 758         snd_soc_dapm_sync(&codec->dapm);
 759
 760         return 0;
 761 }
 762
 763 static int clk_sys_event(struct snd_soc_dapm_widget *w,
 764                          struct snd_kcontrol *kcontrol, int event)
 765 {
 766         struct snd_soc_codec *codec;
 767
 768         codec = w->codec;
 769
 770         switch (event) {
 771         case SND_SOC_DAPM_PRE_PMU:
 772                 return configure_clock(codec);
 773
 774         case SND_SOC_DAPM_POST_PMD:
 775                 configure_clock(codec);
 776                 break;
 777         }
 778
 779         return 0;
 780 }
 781
 782 static const char *sidetone_text[] = {
 783         "ADC/DMIC1", "DMIC2",
 784 };
 785
 786 static const struct soc_enum sidetone1_enum =
 787         SOC_ENUM_SINGLE(WM8995_SIDETONE, 0, 2, sidetone_text);
 788
 789 static const struct snd_kcontrol_new sidetone1_mux =
 790         SOC_DAPM_ENUM("Left Sidetone Mux", sidetone1_enum);
 791
 792 static const struct soc_enum sidetone2_enum =
 793         SOC_ENUM_SINGLE(WM8995_SIDETONE, 1, 2, sidetone_text);
 794
 795 static const struct snd_kcontrol_new sidetone2_mux =
 796         SOC_DAPM_ENUM("Right Sidetone Mux", sidetone2_enum);
 797
 798 static const struct snd_kcontrol_new aif1adc1l_mix[] = {
 799         SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING,
 800                 1, 1, 0),
 801         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING,
 802                 0, 1, 0),
 803 };
 804
 805 static const struct snd_kcontrol_new aif1adc1r_mix[] = {
 806         SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING,
 807                 1, 1, 0),
 808         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING,
 809                 0, 1, 0),
 810 };
 811
 812 static const struct snd_kcontrol_new aif1adc2l_mix[] = {
 813         SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING,
 814                 1, 1, 0),
 815         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING,
 816                 0, 1, 0),
 817 };
 818
 819 static const struct snd_kcontrol_new aif1adc2r_mix[] = {
 820         SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING,
 821                 1, 1, 0),
 822         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING,
 823                 0, 1, 0),
 824 };
 825
 826 static const struct snd_kcontrol_new dac1l_mix[] = {
 827         WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 828                 5, 1, 0),
 829         WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 830                 4, 1, 0),
 831         WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 832                 2, 1, 0),
 833         WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 834                 1, 1, 0),
 835         WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 836                 0, 1, 0),
 837 };
 838
 839 static const struct snd_kcontrol_new dac1r_mix[] = {
 840         WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 841                 5, 1, 0),
 842         WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 843                 4, 1, 0),
 844         WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 845                 2, 1, 0),
 846         WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 847                 1, 1, 0),
 848         WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 849                 0, 1, 0),
 850 };
 851
 852 static const struct snd_kcontrol_new aif2dac2l_mix[] = {
 853         SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 854                 5, 1, 0),
 855         SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 856                 4, 1, 0),
 857         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 858                 2, 1, 0),
 859         SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 860                 1, 1, 0),
 861         SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 862                 0, 1, 0),
 863 };
 864
 865 static const struct snd_kcontrol_new aif2dac2r_mix[] = {
 866         SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 867                 5, 1, 0),
 868         SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 869                 4, 1, 0),
 870         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 871                 2, 1, 0),
 872         SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 873                 1, 1, 0),
 874         SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 875                 0, 1, 0),
 876 };
 877
 878 static const struct snd_kcontrol_new in1l_pga =
 879         SOC_DAPM_SINGLE("IN1L Switch", WM8995_POWER_MANAGEMENT_2, 5, 1, 0);
 880
 881 static const struct snd_kcontrol_new in1r_pga =
 882         SOC_DAPM_SINGLE("IN1R Switch", WM8995_POWER_MANAGEMENT_2, 4, 1, 0);
 883
 884 static const char *adc_mux_text[] = {
 885         "ADC",
 886         "DMIC",
 887 };
 888
 889 static const struct soc_enum adc_enum =
 890         SOC_ENUM_SINGLE(0, 0, 2, adc_mux_text);
 891
 892 static const struct snd_kcontrol_new adcl_mux =
 893         SOC_DAPM_ENUM_VIRT("ADCL Mux", adc_enum);
 894
 895 static const struct snd_kcontrol_new adcr_mux =
 896         SOC_DAPM_ENUM_VIRT("ADCR Mux", adc_enum);
 897
 898 static const char *spk_src_text[] = {
 899         "DAC1L", "DAC1R", "DAC2L", "DAC2R"
 900 };
 901
 902 static const SOC_ENUM_SINGLE_DECL(spk1l_src_enum, WM8995_LEFT_PDM_SPEAKER_1,
 903                                   0, spk_src_text);
 904 static const SOC_ENUM_SINGLE_DECL(spk1r_src_enum, WM8995_RIGHT_PDM_SPEAKER_1,
 905                                   0, spk_src_text);
 906 static const SOC_ENUM_SINGLE_DECL(spk2l_src_enum, WM8995_LEFT_PDM_SPEAKER_2,
 907                                   0, spk_src_text);
 908 static const SOC_ENUM_SINGLE_DECL(spk2r_src_enum, WM8995_RIGHT_PDM_SPEAKER_2,
 909                                   0, spk_src_text);
 910
 911 static const struct snd_kcontrol_new spk1l_mux =
 912         SOC_DAPM_ENUM("SPK1L SRC", spk1l_src_enum);
 913 static const struct snd_kcontrol_new spk1r_mux =
 914         SOC_DAPM_ENUM("SPK1R SRC", spk1r_src_enum);
 915 static const struct snd_kcontrol_new spk2l_mux =
 916         SOC_DAPM_ENUM("SPK2L SRC", spk2l_src_enum);
 917 static const struct snd_kcontrol_new spk2r_mux =
 918         SOC_DAPM_ENUM("SPK2R SRC", spk2r_src_enum);
 919
 920 static const struct snd_soc_dapm_widget wm8995_dapm_widgets[] = {
 921         SND_SOC_DAPM_INPUT("DMIC1DAT"),
 922         SND_SOC_DAPM_INPUT("DMIC2DAT"),
 923
 924         SND_SOC_DAPM_INPUT("IN1L"),
 925         SND_SOC_DAPM_INPUT("IN1R"),
 926
 927         SND_SOC_DAPM_MIXER("IN1L PGA", SND_SOC_NOPM, 0, 0,
 928                 &in1l_pga, 1),
 929         SND_SOC_DAPM_MIXER("IN1R PGA", SND_SOC_NOPM, 0, 0,
 930                 &in1r_pga, 1),
 931
 932         SND_SOC_DAPM_SUPPLY("MICBIAS1", WM8995_POWER_MANAGEMENT_1, 8, 0,
 933                             NULL, 0),
 934         SND_SOC_DAPM_SUPPLY("MICBIAS2", WM8995_POWER_MANAGEMENT_1, 9, 0,
 935                             NULL, 0),
 936
 937         SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8995_AIF1_CLOCKING_1, 0, 0, NULL, 0),
 938         SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8995_AIF2_CLOCKING_1, 0, 0, NULL, 0),
 939         SND_SOC_DAPM_SUPPLY("DSP1CLK", WM8995_CLOCKING_1, 3, 0, NULL, 0),
 940         SND_SOC_DAPM_SUPPLY("DSP2CLK", WM8995_CLOCKING_1, 2, 0, NULL, 0),
 941         SND_SOC_DAPM_SUPPLY("SYSDSPCLK", WM8995_CLOCKING_1, 1, 0, NULL, 0),
 942         SND_SOC_DAPM_SUPPLY("CLK_SYS", SND_SOC_NOPM, 0, 0, clk_sys_event,
 943                 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 944
 945         SND_SOC_DAPM_AIF_OUT("AIF1ADC1L", "AIF1 Capture", 0,
 946                 WM8995_POWER_MANAGEMENT_3, 9, 0),
 947         SND_SOC_DAPM_AIF_OUT("AIF1ADC1R", "AIF1 Capture", 0,
 948                 WM8995_POWER_MANAGEMENT_3, 8, 0),
 949         SND_SOC_DAPM_AIF_OUT("AIF1ADCDAT", "AIF1 Capture", 0,
 950         SND_SOC_NOPM, 0, 0),
 951         SND_SOC_DAPM_AIF_OUT("AIF1ADC2L", "AIF1 Capture",
 952                 0, WM8995_POWER_MANAGEMENT_3, 11, 0),
 953         SND_SOC_DAPM_AIF_OUT("AIF1ADC2R", "AIF1 Capture",
 954                 0, WM8995_POWER_MANAGEMENT_3, 10, 0),
 955
 956         SND_SOC_DAPM_VIRT_MUX("ADCL Mux", SND_SOC_NOPM, 1, 0,
 957                 &adcl_mux),
 958         SND_SOC_DAPM_VIRT_MUX("ADCR Mux", SND_SOC_NOPM, 0, 0,
 959                 &adcr_mux),
 960
 961         SND_SOC_DAPM_ADC("DMIC2L", NULL, WM8995_POWER_MANAGEMENT_3, 5, 0),
 962         SND_SOC_DAPM_ADC("DMIC2R", NULL, WM8995_POWER_MANAGEMENT_3, 4, 0),
 963         SND_SOC_DAPM_ADC("DMIC1L", NULL, WM8995_POWER_MANAGEMENT_3, 3, 0),
 964         SND_SOC_DAPM_ADC("DMIC1R", NULL, WM8995_POWER_MANAGEMENT_3, 2, 0),
 965
 966         SND_SOC_DAPM_ADC("ADCL", NULL, WM8995_POWER_MANAGEMENT_3, 1, 0),
 967         SND_SOC_DAPM_ADC("ADCR", NULL, WM8995_POWER_MANAGEMENT_3, 0, 0),
 968
 969         SND_SOC_DAPM_MIXER("AIF1ADC1L Mixer", SND_SOC_NOPM, 0, 0,
 970                 aif1adc1l_mix, ARRAY_SIZE(aif1adc1l_mix)),
 971         SND_SOC_DAPM_MIXER("AIF1ADC1R Mixer", SND_SOC_NOPM, 0, 0,
 972                 aif1adc1r_mix, ARRAY_SIZE(aif1adc1r_mix)),
 973         SND_SOC_DAPM_MIXER("AIF1ADC2L Mixer", SND_SOC_NOPM, 0, 0,
 974                 aif1adc2l_mix, ARRAY_SIZE(aif1adc2l_mix)),
 975         SND_SOC_DAPM_MIXER("AIF1ADC2R Mixer", SND_SOC_NOPM, 0, 0,
 976                 aif1adc2r_mix, ARRAY_SIZE(aif1adc2r_mix)),
 977
 978         SND_SOC_DAPM_AIF_IN("AIF1DAC1L", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 979                 9, 0),
 980         SND_SOC_DAPM_AIF_IN("AIF1DAC1R", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 981                 8, 0),
 982         SND_SOC_DAPM_AIF_IN("AIF1DACDAT", "AIF1 Playback", 0, SND_SOC_NOPM,
 983                 0, 0),
 984
 985         SND_SOC_DAPM_AIF_IN("AIF1DAC2L", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 986                 11, 0),
 987         SND_SOC_DAPM_AIF_IN("AIF1DAC2R", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 988                 10, 0),
 989
 990         SND_SOC_DAPM_MIXER("AIF2DAC2L Mixer", SND_SOC_NOPM, 0, 0,
 991                 aif2dac2l_mix, ARRAY_SIZE(aif2dac2l_mix)),
 992         SND_SOC_DAPM_MIXER("AIF2DAC2R Mixer", SND_SOC_NOPM, 0, 0,
 993                 aif2dac2r_mix, ARRAY_SIZE(aif2dac2r_mix)),
 994
 995         SND_SOC_DAPM_DAC("DAC2L", NULL, WM8995_POWER_MANAGEMENT_4, 3, 0),
 996         SND_SOC_DAPM_DAC("DAC2R", NULL, WM8995_POWER_MANAGEMENT_4, 2, 0),
 997         SND_SOC_DAPM_DAC("DAC1L", NULL, WM8995_POWER_MANAGEMENT_4, 1, 0),
 998         SND_SOC_DAPM_DAC("DAC1R", NULL, WM8995_POWER_MANAGEMENT_4, 0, 0),
 999
1000         SND_SOC_DAPM_MIXER("DAC1L Mixer", SND_SOC_NOPM, 0, 0, dac1l_mix,
1001                 ARRAY_SIZE(dac1l_mix)),
1002         SND_SOC_DAPM_MIXER("DAC1R Mixer", SND_SOC_NOPM, 0, 0, dac1r_mix,
1003                 ARRAY_SIZE(dac1r_mix)),
1004
1005         SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &sidetone1_mux),
1006         SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &sidetone2_mux),
1007
1008         SND_SOC_DAPM_PGA_E("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
1009                 hp_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1010
1011         SND_SOC_DAPM_SUPPLY("Headphone Supply", SND_SOC_NOPM, 0, 0,
1012                 hp_supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1013
1014         SND_SOC_DAPM_MUX("SPK1L Driver", WM8995_LEFT_PDM_SPEAKER_1,
1015                 4, 0, &spk1l_mux),
1016         SND_SOC_DAPM_MUX("SPK1R Driver", WM8995_RIGHT_PDM_SPEAKER_1,
1017                 4, 0, &spk1r_mux),
1018         SND_SOC_DAPM_MUX("SPK2L Driver", WM8995_LEFT_PDM_SPEAKER_2,
1019                 4, 0, &spk2l_mux),
1020         SND_SOC_DAPM_MUX("SPK2R Driver", WM8995_RIGHT_PDM_SPEAKER_2,
1021                 4, 0, &spk2r_mux),
1022
1023         SND_SOC_DAPM_SUPPLY("LDO2", WM8995_POWER_MANAGEMENT_2, 1, 0, NULL, 0),
1024
1025         SND_SOC_DAPM_OUTPUT("HP1L"),
1026         SND_SOC_DAPM_OUTPUT("HP1R"),
1027         SND_SOC_DAPM_OUTPUT("SPK1L"),
1028         SND_SOC_DAPM_OUTPUT("SPK1R"),
1029         SND_SOC_DAPM_OUTPUT("SPK2L"),
1030         SND_SOC_DAPM_OUTPUT("SPK2R")
1031 };
1032
1033 static const struct snd_soc_dapm_route wm8995_intercon[] = {
1034         { "CLK_SYS", NULL, "AIF1CLK", check_clk_sys },
1035         { "CLK_SYS", NULL, "AIF2CLK", check_clk_sys },
1036
1037         { "DSP1CLK", NULL, "CLK_SYS" },
1038         { "DSP2CLK", NULL, "CLK_SYS" },
1039         { "SYSDSPCLK", NULL, "CLK_SYS" },
1040
1041         { "AIF1ADC1L", NULL, "AIF1CLK" },
1042         { "AIF1ADC1L", NULL, "DSP1CLK" },
1043         { "AIF1ADC1R", NULL, "AIF1CLK" },
1044         { "AIF1ADC1R", NULL, "DSP1CLK" },
1045         { "AIF1ADC1R", NULL, "SYSDSPCLK" },
1046
1047         { "AIF1ADC2L", NULL, "AIF1CLK" },
1048         { "AIF1ADC2L", NULL, "DSP1CLK" },
1049         { "AIF1ADC2R", NULL, "AIF1CLK" },
1050         { "AIF1ADC2R", NULL, "DSP1CLK" },
1051         { "AIF1ADC2R", NULL, "SYSDSPCLK" },
1052
1053         { "DMIC1L", NULL, "DMIC1DAT" },
1054         { "DMIC1L", NULL, "CLK_SYS" },
1055         { "DMIC1R", NULL, "DMIC1DAT" },
1056         { "DMIC1R", NULL, "CLK_SYS" },
1057         { "DMIC2L", NULL, "DMIC2DAT" },
1058         { "DMIC2L", NULL, "CLK_SYS" },
1059         { "DMIC2R", NULL, "DMIC2DAT" },
1060         { "DMIC2R", NULL, "CLK_SYS" },
1061
1062         { "ADCL", NULL, "AIF1CLK" },
1063         { "ADCL", NULL, "DSP1CLK" },
1064         { "ADCL", NULL, "SYSDSPCLK" },
1065
1066         { "ADCR", NULL, "AIF1CLK" },
1067         { "ADCR", NULL, "DSP1CLK" },
1068         { "ADCR", NULL, "SYSDSPCLK" },
1069
1070         { "IN1L PGA", "IN1L Switch", "IN1L" },
1071         { "IN1R PGA", "IN1R Switch", "IN1R" },
1072         { "IN1L PGA", NULL, "LDO2" },
1073         { "IN1R PGA", NULL, "LDO2" },
1074
1075         { "ADCL", NULL, "IN1L PGA" },
1076         { "ADCR", NULL, "IN1R PGA" },
1077
1078         { "ADCL Mux", "ADC", "ADCL" },
1079         { "ADCL Mux", "DMIC", "DMIC1L" },
1080         { "ADCR Mux", "ADC", "ADCR" },
1081         { "ADCR Mux", "DMIC", "DMIC1R" },
1082
1083         /* AIF1 outputs */
1084         { "AIF1ADC1L", NULL, "AIF1ADC1L Mixer" },
1085         { "AIF1ADC1L Mixer", "ADC/DMIC Switch", "ADCL Mux" },
1086
1087         { "AIF1ADC1R", NULL, "AIF1ADC1R Mixer" },
1088         { "AIF1ADC1R Mixer", "ADC/DMIC Switch", "ADCR Mux" },
1089
1090         { "AIF1ADC2L", NULL, "AIF1ADC2L Mixer" },
1091         { "AIF1ADC2L Mixer", "DMIC Switch", "DMIC2L" },
1092
1093         { "AIF1ADC2R", NULL, "AIF1ADC2R Mixer" },
1094         { "AIF1ADC2R Mixer", "DMIC Switch", "DMIC2R" },
1095
1096         /* Sidetone */
1097         { "Left Sidetone", "ADC/DMIC1", "AIF1ADC1L" },
1098         { "Left Sidetone", "DMIC2", "AIF1ADC2L" },
1099         { "Right Sidetone", "ADC/DMIC1", "AIF1ADC1R" },
1100         { "Right Sidetone", "DMIC2", "AIF1ADC2R" },
1101
1102         { "AIF1DAC1L", NULL, "AIF1CLK" },
1103         { "AIF1DAC1L", NULL, "DSP1CLK" },
1104         { "AIF1DAC1R", NULL, "AIF1CLK" },
1105         { "AIF1DAC1R", NULL, "DSP1CLK" },
1106         { "AIF1DAC1R", NULL, "SYSDSPCLK" },
1107
1108         { "AIF1DAC2L", NULL, "AIF1CLK" },
1109         { "AIF1DAC2L", NULL, "DSP1CLK" },
1110         { "AIF1DAC2R", NULL, "AIF1CLK" },
1111         { "AIF1DAC2R", NULL, "DSP1CLK" },
1112         { "AIF1DAC2R", NULL, "SYSDSPCLK" },
1113
1114         { "DAC1L", NULL, "AIF1CLK" },
1115         { "DAC1L", NULL, "DSP1CLK" },
1116         { "DAC1L", NULL, "SYSDSPCLK" },
1117
1118         { "DAC1R", NULL, "AIF1CLK" },
1119         { "DAC1R", NULL, "DSP1CLK" },
1120         { "DAC1R", NULL, "SYSDSPCLK" },
1121
1122         { "AIF1DAC1L", NULL, "AIF1DACDAT" },
1123         { "AIF1DAC1R", NULL, "AIF1DACDAT" },
1124         { "AIF1DAC2L", NULL, "AIF1DACDAT" },
1125         { "AIF1DAC2R", NULL, "AIF1DACDAT" },
1126
1127         /* DAC1 inputs */
1128         { "DAC1L", NULL, "DAC1L Mixer" },
1129         { "DAC1L Mixer", "AIF1.1 Switch", "AIF1DAC1L" },
1130         { "DAC1L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
1131         { "DAC1L Mixer", "Left Sidetone Switch", "Left Sidetone" },
1132         { "DAC1L Mixer", "Right Sidetone Switch", "Right Sidetone" },
1133
1134         { "DAC1R", NULL, "DAC1R Mixer" },
1135         { "DAC1R Mixer", "AIF1.1 Switch", "AIF1DAC1R" },
1136         { "DAC1R Mixer", "AIF1.2 Switch", "AIF1DAC2R" },
1137         { "DAC1R Mixer", "Left Sidetone Switch", "Left Sidetone" },
1138         { "DAC1R Mixer", "Right Sidetone Switch", "Right Sidetone" },
1139
1140         /* DAC2/AIF2 outputs */
1141         { "DAC2L", NULL, "AIF2DAC2L Mixer" },
1142         { "AIF2DAC2L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
1143         { "AIF2DAC2L Mixer", "AIF1.1 Switch", "AIF1DAC1L" },
1144
1145         { "DAC2R", NULL, "AIF2DAC2R Mixer" },
1146         { "AIF2DAC2R Mixer", "AIF1.2 Switch", "AIF1DAC2R" },
1147         { "AIF2DAC2R Mixer", "AIF1.1 Switch", "AIF1DAC1R" },
1148
1149         /* Output stages */
1150         { "Headphone PGA", NULL, "DAC1L" },
1151         { "Headphone PGA", NULL, "DAC1R" },
1152
1153         { "Headphone PGA", NULL, "DAC2L" },
1154         { "Headphone PGA", NULL, "DAC2R" },
1155
1156         { "Headphone PGA", NULL, "Headphone Supply" },
1157         { "Headphone PGA", NULL, "CLK_SYS" },
1158         { "Headphone PGA", NULL, "LDO2" },
1159
1160         { "HP1L", NULL, "Headphone PGA" },
1161         { "HP1R", NULL, "Headphone PGA" },
1162
1163         { "SPK1L Driver", "DAC1L", "DAC1L" },
1164         { "SPK1L Driver", "DAC1R", "DAC1R" },
1165         { "SPK1L Driver", "DAC2L", "DAC2L" },
1166         { "SPK1L Driver", "DAC2R", "DAC2R" },
1167         { "SPK1L Driver", NULL, "CLK_SYS" },
1168
1169         { "SPK1R Driver", "DAC1L", "DAC1L" },
1170         { "SPK1R Driver", "DAC1R", "DAC1R" },
1171         { "SPK1R Driver", "DAC2L", "DAC2L" },
1172         { "SPK1R Driver", "DAC2R", "DAC2R" },
1173         { "SPK1R Driver", NULL, "CLK_SYS" },
1174
1175         { "SPK2L Driver", "DAC1L", "DAC1L" },
1176         { "SPK2L Driver", "DAC1R", "DAC1R" },
1177         { "SPK2L Driver", "DAC2L", "DAC2L" },
1178         { "SPK2L Driver", "DAC2R", "DAC2R" },
1179         { "SPK2L Driver", NULL, "CLK_SYS" },
1180
1181         { "SPK2R Driver", "DAC1L", "DAC1L" },
1182         { "SPK2R Driver", "DAC1R", "DAC1R" },
1183         { "SPK2R Driver", "DAC2L", "DAC2L" },
1184         { "SPK2R Driver", "DAC2R", "DAC2R" },
1185         { "SPK2R Driver", NULL, "CLK_SYS" },
1186
1187         { "SPK1L", NULL, "SPK1L Driver" },
1188         { "SPK1R", NULL, "SPK1R Driver" },
1189         { "SPK2L", NULL, "SPK2L Driver" },
1190         { "SPK2R", NULL, "SPK2R Driver" }
1191 };
1192
1193 static bool wm8995_readable(struct device *dev, unsigned int reg)
1194 {
1195         switch (reg) {
1196         case WM8995_SOFTWARE_RESET:
1197         case WM8995_POWER_MANAGEMENT_1:
1198         case WM8995_POWER_MANAGEMENT_2:
1199         case WM8995_POWER_MANAGEMENT_3:
1200         case WM8995_POWER_MANAGEMENT_4:
1201         case WM8995_POWER_MANAGEMENT_5:
1202         case WM8995_LEFT_LINE_INPUT_1_VOLUME:
1203         case WM8995_RIGHT_LINE_INPUT_1_VOLUME:
1204         case WM8995_LEFT_LINE_INPUT_CONTROL:
1205         case WM8995_DAC1_LEFT_VOLUME:
1206         case WM8995_DAC1_RIGHT_VOLUME:
1207         case WM8995_DAC2_LEFT_VOLUME:
1208         case WM8995_DAC2_RIGHT_VOLUME:
1209         case WM8995_OUTPUT_VOLUME_ZC_1:
1210         case WM8995_MICBIAS_1:
1211         case WM8995_MICBIAS_2:
1212         case WM8995_LDO_1:
1213         case WM8995_LDO_2:
1214         case WM8995_ACCESSORY_DETECT_MODE1:
1215         case WM8995_ACCESSORY_DETECT_MODE2:
1216         case WM8995_HEADPHONE_DETECT1:
1217         case WM8995_HEADPHONE_DETECT2:
1218         case WM8995_MIC_DETECT_1:
1219         case WM8995_MIC_DETECT_2:
1220         case WM8995_CHARGE_PUMP_1:
1221         case WM8995_CLASS_W_1:
1222         case WM8995_DC_SERVO_1:
1223         case WM8995_DC_SERVO_2:
1224         case WM8995_DC_SERVO_3:
1225         case WM8995_DC_SERVO_5:
1226         case WM8995_DC_SERVO_6:
1227         case WM8995_DC_SERVO_7:
1228         case WM8995_DC_SERVO_READBACK_0:
1229         case WM8995_ANALOGUE_HP_1:
1230         case WM8995_ANALOGUE_HP_2:
1231         case WM8995_CHIP_REVISION:
1232         case WM8995_CONTROL_INTERFACE_1:
1233         case WM8995_CONTROL_INTERFACE_2:
1234         case WM8995_WRITE_SEQUENCER_CTRL_1:
1235         case WM8995_WRITE_SEQUENCER_CTRL_2:
1236         case WM8995_AIF1_CLOCKING_1:
1237         case WM8995_AIF1_CLOCKING_2:
1238         case WM8995_AIF2_CLOCKING_1:
1239         case WM8995_AIF2_CLOCKING_2:
1240         case WM8995_CLOCKING_1:
1241         case WM8995_CLOCKING_2:
1242         case WM8995_AIF1_RATE:
1243         case WM8995_AIF2_RATE:
1244         case WM8995_RATE_STATUS:
1245         case WM8995_FLL1_CONTROL_1:
1246         case WM8995_FLL1_CONTROL_2:
1247         case WM8995_FLL1_CONTROL_3:
1248         case WM8995_FLL1_CONTROL_4:
1249         case WM8995_FLL1_CONTROL_5:
1250         case WM8995_FLL2_CONTROL_1:
1251         case WM8995_FLL2_CONTROL_2:
1252         case WM8995_FLL2_CONTROL_3:
1253         case WM8995_FLL2_CONTROL_4:
1254         case WM8995_FLL2_CONTROL_5:
1255         case WM8995_AIF1_CONTROL_1:
1256         case WM8995_AIF1_CONTROL_2:
1257         case WM8995_AIF1_MASTER_SLAVE:
1258         case WM8995_AIF1_BCLK:
1259         case WM8995_AIF1ADC_LRCLK:
1260         case WM8995_AIF1DAC_LRCLK:
1261         case WM8995_AIF1DAC_DATA:
1262         case WM8995_AIF1ADC_DATA:
1263         case WM8995_AIF2_CONTROL_1:
1264         case WM8995_AIF2_CONTROL_2:
1265         case WM8995_AIF2_MASTER_SLAVE:
1266         case WM8995_AIF2_BCLK:
1267         case WM8995_AIF2ADC_LRCLK:
1268         case WM8995_AIF2DAC_LRCLK:
1269         case WM8995_AIF2DAC_DATA:
1270         case WM8995_AIF2ADC_DATA:
1271         case WM8995_AIF1_ADC1_LEFT_VOLUME:
1272         case WM8995_AIF1_ADC1_RIGHT_VOLUME:
1273         case WM8995_AIF1_DAC1_LEFT_VOLUME:
1274         case WM8995_AIF1_DAC1_RIGHT_VOLUME:
1275         case WM8995_AIF1_ADC2_LEFT_VOLUME:
1276         case WM8995_AIF1_ADC2_RIGHT_VOLUME:
1277         case WM8995_AIF1_DAC2_LEFT_VOLUME:
1278         case WM8995_AIF1_DAC2_RIGHT_VOLUME:
1279         case WM8995_AIF1_ADC1_FILTERS:
1280         case WM8995_AIF1_ADC2_FILTERS:
1281         case WM8995_AIF1_DAC1_FILTERS_1:
1282         case WM8995_AIF1_DAC1_FILTERS_2:
1283         case WM8995_AIF1_DAC2_FILTERS_1:
1284         case WM8995_AIF1_DAC2_FILTERS_2:
1285         case WM8995_AIF1_DRC1_1:
1286         case WM8995_AIF1_DRC1_2:
1287         case WM8995_AIF1_DRC1_3:
1288         case WM8995_AIF1_DRC1_4:
1289         case WM8995_AIF1_DRC1_5:
1290         case WM8995_AIF1_DRC2_1:
1291         case WM8995_AIF1_DRC2_2:
1292         case WM8995_AIF1_DRC2_3:
1293         case WM8995_AIF1_DRC2_4:
1294         case WM8995_AIF1_DRC2_5:
1295         case WM8995_AIF1_DAC1_EQ_GAINS_1:
1296         case WM8995_AIF1_DAC1_EQ_GAINS_2:
1297         case WM8995_AIF1_DAC1_EQ_BAND_1_A:
1298         case WM8995_AIF1_DAC1_EQ_BAND_1_B:
1299         case WM8995_AIF1_DAC1_EQ_BAND_1_PG:
1300         case WM8995_AIF1_DAC1_EQ_BAND_2_A:
1301         case WM8995_AIF1_DAC1_EQ_BAND_2_B:
1302         case WM8995_AIF1_DAC1_EQ_BAND_2_C:
1303         case WM8995_AIF1_DAC1_EQ_BAND_2_PG:
1304         case WM8995_AIF1_DAC1_EQ_BAND_3_A:
1305         case WM8995_AIF1_DAC1_EQ_BAND_3_B:
1306         case WM8995_AIF1_DAC1_EQ_BAND_3_C:
1307         case WM8995_AIF1_DAC1_EQ_BAND_3_PG:
1308         case WM8995_AIF1_DAC1_EQ_BAND_4_A:
1309         case WM8995_AIF1_DAC1_EQ_BAND_4_B:
1310         case WM8995_AIF1_DAC1_EQ_BAND_4_C:
1311         case WM8995_AIF1_DAC1_EQ_BAND_4_PG:
1312         case WM8995_AIF1_DAC1_EQ_BAND_5_A:
1313         case WM8995_AIF1_DAC1_EQ_BAND_5_B:
1314         case WM8995_AIF1_DAC1_EQ_BAND_5_PG:
1315         case WM8995_AIF1_DAC2_EQ_GAINS_1:
1316         case WM8995_AIF1_DAC2_EQ_GAINS_2:
1317         case WM8995_AIF1_DAC2_EQ_BAND_1_A:
1318         case WM8995_AIF1_DAC2_EQ_BAND_1_B:
1319         case WM8995_AIF1_DAC2_EQ_BAND_1_PG:
1320         case WM8995_AIF1_DAC2_EQ_BAND_2_A:
1321         case WM8995_AIF1_DAC2_EQ_BAND_2_B:
1322         case WM8995_AIF1_DAC2_EQ_BAND_2_C:
1323         case WM8995_AIF1_DAC2_EQ_BAND_2_PG:
1324         case WM8995_AIF1_DAC2_EQ_BAND_3_A:
1325         case WM8995_AIF1_DAC2_EQ_BAND_3_B:
1326         case WM8995_AIF1_DAC2_EQ_BAND_3_C:
1327         case WM8995_AIF1_DAC2_EQ_BAND_3_PG:
1328         case WM8995_AIF1_DAC2_EQ_BAND_4_A:
1329         case WM8995_AIF1_DAC2_EQ_BAND_4_B:
1330         case WM8995_AIF1_DAC2_EQ_BAND_4_C:
1331         case WM8995_AIF1_DAC2_EQ_BAND_4_PG:
1332         case WM8995_AIF1_DAC2_EQ_BAND_5_A:
1333         case WM8995_AIF1_DAC2_EQ_BAND_5_B:
1334         case WM8995_AIF1_DAC2_EQ_BAND_5_PG:
1335         case WM8995_AIF2_ADC_LEFT_VOLUME:
1336         case WM8995_AIF2_ADC_RIGHT_VOLUME:
1337         case WM8995_AIF2_DAC_LEFT_VOLUME:
1338         case WM8995_AIF2_DAC_RIGHT_VOLUME:
1339         case WM8995_AIF2_ADC_FILTERS:
1340         case WM8995_AIF2_DAC_FILTERS_1:
1341         case WM8995_AIF2_DAC_FILTERS_2:
1342         case WM8995_AIF2_DRC_1:
1343         case WM8995_AIF2_DRC_2:
1344         case WM8995_AIF2_DRC_3:
1345         case WM8995_AIF2_DRC_4:
1346         case WM8995_AIF2_DRC_5:
1347         case WM8995_AIF2_EQ_GAINS_1:
1348         case WM8995_AIF2_EQ_GAINS_2:
1349         case WM8995_AIF2_EQ_BAND_1_A:
1350         case WM8995_AIF2_EQ_BAND_1_B:
1351         case WM8995_AIF2_EQ_BAND_1_PG:
1352         case WM8995_AIF2_EQ_BAND_2_A:
1353         case WM8995_AIF2_EQ_BAND_2_B:
1354         case WM8995_AIF2_EQ_BAND_2_C:
1355         case WM8995_AIF2_EQ_BAND_2_PG:
1356         case WM8995_AIF2_EQ_BAND_3_A:
1357         case WM8995_AIF2_EQ_BAND_3_B:
1358         case WM8995_AIF2_EQ_BAND_3_C:
1359         case WM8995_AIF2_EQ_BAND_3_PG:
1360         case WM8995_AIF2_EQ_BAND_4_A:
1361         case WM8995_AIF2_EQ_BAND_4_B:
1362         case WM8995_AIF2_EQ_BAND_4_C:
1363         case WM8995_AIF2_EQ_BAND_4_PG:
1364         case WM8995_AIF2_EQ_BAND_5_A:
1365         case WM8995_AIF2_EQ_BAND_5_B:
1366         case WM8995_AIF2_EQ_BAND_5_PG:
1367         case WM8995_DAC1_MIXER_VOLUMES:
1368         case WM8995_DAC1_LEFT_MIXER_ROUTING:
1369         case WM8995_DAC1_RIGHT_MIXER_ROUTING:
1370         case WM8995_DAC2_MIXER_VOLUMES:
1371         case WM8995_DAC2_LEFT_MIXER_ROUTING:
1372         case WM8995_DAC2_RIGHT_MIXER_ROUTING:
1373         case WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING:
1374         case WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING:
1375         case WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING:
1376         case WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING:
1377         case WM8995_DAC_SOFTMUTE:
1378         case WM8995_OVERSAMPLING:
1379         case WM8995_SIDETONE:
1380         case WM8995_GPIO_1:
1381         case WM8995_GPIO_2:
1382         case WM8995_GPIO_3:
1383         case WM8995_GPIO_4:
1384         case WM8995_GPIO_5:
1385         case WM8995_GPIO_6:
1386         case WM8995_GPIO_7:
1387         case WM8995_GPIO_8:
1388         case WM8995_GPIO_9:
1389         case WM8995_GPIO_10:
1390         case WM8995_GPIO_11:
1391         case WM8995_GPIO_12:
1392         case WM8995_GPIO_13:
1393         case WM8995_GPIO_14:
1394         case WM8995_PULL_CONTROL_1:
1395         case WM8995_PULL_CONTROL_2:
1396         case WM8995_INTERRUPT_STATUS_1:
1397         case WM8995_INTERRUPT_STATUS_2:
1398         case WM8995_INTERRUPT_RAW_STATUS_2:
1399         case WM8995_INTERRUPT_STATUS_1_MASK:
1400         case WM8995_INTERRUPT_STATUS_2_MASK:
1401         case WM8995_INTERRUPT_CONTROL:
1402         case WM8995_LEFT_PDM_SPEAKER_1:
1403         case WM8995_RIGHT_PDM_SPEAKER_1:
1404         case WM8995_PDM_SPEAKER_1_MUTE_SEQUENCE:
1405         case WM8995_LEFT_PDM_SPEAKER_2:
1406         case WM8995_RIGHT_PDM_SPEAKER_2:
1407         case WM8995_PDM_SPEAKER_2_MUTE_SEQUENCE:
1408                 return true;
1409         default:
1410                 return false;
1411         }
1412 }
1413
1414 static bool wm8995_volatile(struct device *dev, unsigned int reg)
1415 {
1416         switch (reg) {
1417         case WM8995_SOFTWARE_RESET:
1418         case WM8995_DC_SERVO_READBACK_0:
1419         case WM8995_INTERRUPT_STATUS_1:
1420         case WM8995_INTERRUPT_STATUS_2:
1421         case WM8995_INTERRUPT_CONTROL:
1422         case WM8995_ACCESSORY_DETECT_MODE1:
1423         case WM8995_ACCESSORY_DETECT_MODE2:
1424         case WM8995_HEADPHONE_DETECT1:
1425         case WM8995_HEADPHONE_DETECT2:
1426         case WM8995_RATE_STATUS:
1427                 return true;
1428         default:
1429                 return false;
1430         }
1431 }
1432
1433 static int wm8995_aif_mute(struct snd_soc_dai *dai, int mute)
1434 {
1435         struct snd_soc_codec *codec = dai->codec;
1436         int mute_reg;
1437
1438         switch (dai->id) {
1439         case 0:
1440                 mute_reg = WM8995_AIF1_DAC1_FILTERS_1;
1441                 break;
1442         case 1:
1443                 mute_reg = WM8995_AIF2_DAC_FILTERS_1;
1444                 break;
1445         default:
1446                 return -EINVAL;
1447         }
1448
1449         snd_soc_update_bits(codec, mute_reg, WM8995_AIF1DAC1_MUTE_MASK,
1450                             !!mute << WM8995_AIF1DAC1_MUTE_SHIFT);
1451         return 0;
1452 }
1453
1454 static int wm8995_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1455 {
1456         struct snd_soc_codec *codec;
1457         int master;
1458         int aif;
1459
1460         codec = dai->codec;
1461
1462         master = 0;
1463         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1464         case SND_SOC_DAIFMT_CBS_CFS:
1465                 break;
1466         case SND_SOC_DAIFMT_CBM_CFM:
1467                 master = WM8995_AIF1_MSTR;
1468                 break;
1469         default:
1470                 dev_err(dai->dev, "Unknown master/slave configuration\n");
1471                 return -EINVAL;
1472         }
1473
1474         aif = 0;
1475         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1476         case SND_SOC_DAIFMT_DSP_B:
1477                 aif |= WM8995_AIF1_LRCLK_INV;
1478         case SND_SOC_DAIFMT_DSP_A:
1479                 aif |= (0x3 << WM8995_AIF1_FMT_SHIFT);
1480                 break;
1481         case SND_SOC_DAIFMT_I2S:
1482                 aif |= (0x2 << WM8995_AIF1_FMT_SHIFT);
1483                 break;
1484         case SND_SOC_DAIFMT_RIGHT_J:
1485                 break;
1486         case SND_SOC_DAIFMT_LEFT_J:
1487                 aif |= (0x1 << WM8995_AIF1_FMT_SHIFT);
1488                 break;
1489         default:
1490                 dev_err(dai->dev, "Unknown dai format\n");
1491                 return -EINVAL;
1492         }
1493
1494         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1495         case SND_SOC_DAIFMT_DSP_A:
1496         case SND_SOC_DAIFMT_DSP_B:
1497                 /* frame inversion not valid for DSP modes */
1498                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1499                 case SND_SOC_DAIFMT_NB_NF:
1500                         break;
1501                 case SND_SOC_DAIFMT_IB_NF:
1502                         aif |= WM8995_AIF1_BCLK_INV;
1503                         break;
1504                 default:
1505                         return -EINVAL;
1506                 }
1507                 break;
1508
1509         case SND_SOC_DAIFMT_I2S:
1510         case SND_SOC_DAIFMT_RIGHT_J:
1511         case SND_SOC_DAIFMT_LEFT_J:
1512                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1513                 case SND_SOC_DAIFMT_NB_NF:
1514                         break;
1515                 case SND_SOC_DAIFMT_IB_IF:
1516                         aif |= WM8995_AIF1_BCLK_INV | WM8995_AIF1_LRCLK_INV;
1517                         break;
1518                 case SND_SOC_DAIFMT_IB_NF:
1519                         aif |= WM8995_AIF1_BCLK_INV;
1520                         break;
1521                 case SND_SOC_DAIFMT_NB_IF:
1522                         aif |= WM8995_AIF1_LRCLK_INV;
1523                         break;
1524                 default:
1525                         return -EINVAL;
1526                 }
1527                 break;
1528         default:
1529                 return -EINVAL;
1530         }
1531
1532         snd_soc_update_bits(codec, WM8995_AIF1_CONTROL_1,
1533                             WM8995_AIF1_BCLK_INV_MASK |
1534                             WM8995_AIF1_LRCLK_INV_MASK |
1535                             WM8995_AIF1_FMT_MASK, aif);
1536         snd_soc_update_bits(codec, WM8995_AIF1_MASTER_SLAVE,
1537                             WM8995_AIF1_MSTR_MASK, master);
1538         return 0;
1539 }
1540
1541 static const int srs[] = {
1542         8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100,
1543         48000, 88200, 96000
1544 };
1545
1546 static const int fs_ratios[] = {
1547         -1 /* reserved */,
1548         128, 192, 256, 384, 512, 768, 1024, 1408, 1536
1549 };
1550
1551 static const int bclk_divs[] = {
1552         10, 15, 20, 30, 40, 55, 60, 80, 110, 120, 160, 220, 240, 320, 440, 480
1553 };
1554
1555 static int wm8995_hw_params(struct snd_pcm_substream *substream,
1556                             struct snd_pcm_hw_params *params,
1557                             struct snd_soc_dai *dai)
1558 {
1559         struct snd_soc_codec *codec;
1560         struct wm8995_priv *wm8995;
1561         int aif1_reg;
1562         int bclk_reg;
1563         int lrclk_reg;
1564         int rate_reg;
1565         int bclk_rate;
1566         int aif1;
1567         int lrclk, bclk;
1568         int i, rate_val, best, best_val, cur_val;
1569
1570         codec = dai->codec;
1571         wm8995 = snd_soc_codec_get_drvdata(codec);
1572
1573         switch (dai->id) {
1574         case 0:
1575                 aif1_reg = WM8995_AIF1_CONTROL_1;
1576                 bclk_reg = WM8995_AIF1_BCLK;
1577                 rate_reg = WM8995_AIF1_RATE;
1578                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* ||
1579                         wm8995->lrclk_shared[0] */) {
1580                         lrclk_reg = WM8995_AIF1DAC_LRCLK;
1581                 } else {
1582                         lrclk_reg = WM8995_AIF1ADC_LRCLK;
1583                         dev_dbg(codec->dev, "AIF1 using split LRCLK\n");
1584                 }
1585                 break;
1586         case 1:
1587                 aif1_reg = WM8995_AIF2_CONTROL_1;
1588                 bclk_reg = WM8995_AIF2_BCLK;
1589                 rate_reg = WM8995_AIF2_RATE;
1590                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* ||
1591                     wm8995->lrclk_shared[1] */) {
1592                         lrclk_reg = WM8995_AIF2DAC_LRCLK;
1593                 } else {
1594                         lrclk_reg = WM8995_AIF2ADC_LRCLK;
1595                         dev_dbg(codec->dev, "AIF2 using split LRCLK\n");
1596                 }
1597                 break;
1598         default:
1599                 return -EINVAL;
1600         }
1601
1602         bclk_rate = snd_soc_params_to_bclk(params);
1603         if (bclk_rate < 0)
1604                 return bclk_rate;
1605
1606         aif1 = 0;
1607         switch (params_format(params)) {
1608         case SNDRV_PCM_FORMAT_S16_LE:
1609                 break;
1610         case SNDRV_PCM_FORMAT_S20_3LE:
1611                 aif1 |= (0x1 << WM8995_AIF1_WL_SHIFT);
1612                 break;
1613         case SNDRV_PCM_FORMAT_S24_LE:
1614                 aif1 |= (0x2 << WM8995_AIF1_WL_SHIFT);
1615                 break;
1616         case SNDRV_PCM_FORMAT_S32_LE:
1617                 aif1 |= (0x3 << WM8995_AIF1_WL_SHIFT);
1618                 break;
1619         default:
1620                 dev_err(dai->dev, "Unsupported word length %u\n",
1621                         params_format(params));
1622                 return -EINVAL;
1623         }
1624
1625         /* try to find a suitable sample rate */
1626         for (i = 0; i < ARRAY_SIZE(srs); ++i)
1627                 if (srs[i] == params_rate(params))
1628                         break;
1629         if (i == ARRAY_SIZE(srs)) {
1630                 dev_err(dai->dev, "Sample rate %d is not supported\n",
1631                         params_rate(params));
1632                 return -EINVAL;
1633         }
1634         rate_val = i << WM8995_AIF1_SR_SHIFT;
1635
1636         dev_dbg(dai->dev, "Sample rate is %dHz\n", srs[i]);
1637         dev_dbg(dai->dev, "AIF%dCLK is %dHz, target BCLK %dHz\n",
1638                 dai->id + 1, wm8995->aifclk[dai->id], bclk_rate);
1639
1640         /* AIFCLK/fs ratio; look for a close match in either direction */
1641         best = 1;
1642         best_val = abs((fs_ratios[1] * params_rate(params))
1643                        - wm8995->aifclk[dai->id]);
1644         for (i = 2; i < ARRAY_SIZE(fs_ratios); i++) {
1645                 cur_val = abs((fs_ratios[i] * params_rate(params))
1646                               - wm8995->aifclk[dai->id]);
1647                 if (cur_val >= best_val)
1648                         continue;
1649                 best = i;
1650                 best_val = cur_val;
1651         }
1652         rate_val |= best;
1653
1654         dev_dbg(dai->dev, "Selected AIF%dCLK/fs = %d\n",
1655                 dai->id + 1, fs_ratios[best]);
1656
1657         /*
1658          * We may not get quite the right frequency if using
1659          * approximate clocks so look for the closest match that is
1660          * higher than the target (we need to ensure that there enough
1661          * BCLKs to clock out the samples).
1662          */
1663         best = 0;
1664         bclk = 0;
1665         for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
1666                 cur_val = (wm8995->aifclk[dai->id] * 10 / bclk_divs[i]) - bclk_rate;
1667                 if (cur_val < 0) /* BCLK table is sorted */
1668                         break;
1669                 best = i;
1670         }
1671         bclk |= best << WM8995_AIF1_BCLK_DIV_SHIFT;
1672
1673         bclk_rate = wm8995->aifclk[dai->id] * 10 / bclk_divs[best];
1674         dev_dbg(dai->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n",
1675                 bclk_divs[best], bclk_rate);
1676
1677         lrclk = bclk_rate / params_rate(params);
1678         dev_dbg(dai->dev, "Using LRCLK rate %d for actual LRCLK %dHz\n",
1679                 lrclk, bclk_rate / lrclk);
1680
1681         snd_soc_update_bits(codec, aif1_reg,
1682                             WM8995_AIF1_WL_MASK, aif1);
1683         snd_soc_update_bits(codec, bclk_reg,
1684                             WM8995_AIF1_BCLK_DIV_MASK, bclk);
1685         snd_soc_update_bits(codec, lrclk_reg,
1686                             WM8995_AIF1DAC_RATE_MASK, lrclk);
1687         snd_soc_update_bits(codec, rate_reg,
1688                             WM8995_AIF1_SR_MASK |
1689                             WM8995_AIF1CLK_RATE_MASK, rate_val);
1690         return 0;
1691 }
1692
1693 static int wm8995_set_tristate(struct snd_soc_dai *codec_dai, int tristate)
1694 {
1695         struct snd_soc_codec *codec = codec_dai->codec;
1696         int reg, val, mask;
1697
1698         switch (codec_dai->id) {
1699         case 0:
1700                 reg = WM8995_AIF1_MASTER_SLAVE;
1701                 mask = WM8995_AIF1_TRI;
1702                 break;
1703         case 1:
1704                 reg = WM8995_AIF2_MASTER_SLAVE;
1705                 mask = WM8995_AIF2_TRI;
1706                 break;
1707         case 2:
1708                 reg = WM8995_POWER_MANAGEMENT_5;
1709                 mask = WM8995_AIF3_TRI;
1710                 break;
1711         default:
1712                 return -EINVAL;
1713         }
1714
1715         if (tristate)
1716                 val = mask;
1717         else
1718                 val = 0;
1719
1720         return snd_soc_update_bits(codec, reg, mask, val);
1721 }
1722
1723 /* The size in bits of the FLL divide multiplied by 10
1724  * to allow rounding later */
1725 #define FIXED_FLL_SIZE ((1 << 16) * 10)
1726
1727 struct fll_div {
1728         u16 outdiv;
1729         u16 n;
1730         u16 k;
1731         u16 clk_ref_div;
1732         u16 fll_fratio;
1733 };
1734
1735 static int wm8995_get_fll_config(struct fll_div *fll,
1736                                  int freq_in, int freq_out)
1737 {
1738         u64 Kpart;
1739         unsigned int K, Ndiv, Nmod;
1740
1741         pr_debug("FLL input=%dHz, output=%dHz\n", freq_in, freq_out);
1742
1743         /* Scale the input frequency down to <= 13.5MHz */
1744         fll->clk_ref_div = 0;
1745         while (freq_in > 13500000) {
1746                 fll->clk_ref_div++;
1747                 freq_in /= 2;
1748
1749                 if (fll->clk_ref_div > 3)
1750                         return -EINVAL;
1751         }
1752         pr_debug("CLK_REF_DIV=%d, Fref=%dHz\n", fll->clk_ref_div, freq_in);
1753
1754         /* Scale the output to give 90MHz<=Fvco<=100MHz */
1755         fll->outdiv = 3;
1756         while (freq_out * (fll->outdiv + 1) < 90000000) {
1757                 fll->outdiv++;
1758                 if (fll->outdiv > 63)
1759                         return -EINVAL;
1760         }
1761         freq_out *= fll->outdiv + 1;
1762         pr_debug("OUTDIV=%d, Fvco=%dHz\n", fll->outdiv, freq_out);
1763
1764         if (freq_in > 1000000) {
1765                 fll->fll_fratio = 0;
1766         } else if (freq_in > 256000) {
1767                 fll->fll_fratio = 1;
1768                 freq_in *= 2;
1769         } else if (freq_in > 128000) {
1770                 fll->fll_fratio = 2;
1771                 freq_in *= 4;
1772         } else if (freq_in > 64000) {
1773                 fll->fll_fratio = 3;
1774                 freq_in *= 8;
1775         } else {
1776                 fll->fll_fratio = 4;
1777                 freq_in *= 16;
1778         }
1779         pr_debug("FLL_FRATIO=%d, Fref=%dHz\n", fll->fll_fratio, freq_in);
1780
1781         /* Now, calculate N.K */
1782         Ndiv = freq_out / freq_in;
1783
1784         fll->n = Ndiv;
1785         Nmod = freq_out % freq_in;
1786         pr_debug("Nmod=%d\n", Nmod);
1787
1788         /* Calculate fractional part - scale up so we can round. */
1789         Kpart = FIXED_FLL_SIZE * (long long)Nmod;
1790
1791         do_div(Kpart, freq_in);
1792
1793         K = Kpart & 0xFFFFFFFF;
1794
1795         if ((K % 10) >= 5)
1796                 K += 5;
1797
1798         /* Move down to proper range now rounding is done */
1799         fll->k = K / 10;
1800
1801         pr_debug("N=%x K=%x\n", fll->n, fll->k);
1802
1803         return 0;
1804 }
1805
1806 static int wm8995_set_fll(struct snd_soc_dai *dai, int id,
1807                           int src, unsigned int freq_in,
1808                           unsigned int freq_out)
1809 {
1810         struct snd_soc_codec *codec;
1811         struct wm8995_priv *wm8995;
1812         int reg_offset, ret;
1813         struct fll_div fll;
1814         u16 reg, aif1, aif2;
1815
1816         codec = dai->codec;
1817         wm8995 = snd_soc_codec_get_drvdata(codec);
1818
1819         aif1 = snd_soc_read(codec, WM8995_AIF1_CLOCKING_1)
1820                & WM8995_AIF1CLK_ENA;
1821
1822         aif2 = snd_soc_read(codec, WM8995_AIF2_CLOCKING_1)
1823                & WM8995_AIF2CLK_ENA;
1824
1825         switch (id) {
1826         case WM8995_FLL1:
1827                 reg_offset = 0;
1828                 id = 0;
1829                 break;
1830         case WM8995_FLL2:
1831                 reg_offset = 0x20;
1832                 id = 1;
1833                 break;
1834         default:
1835                 return -EINVAL;
1836         }
1837
1838         switch (src) {
1839         case 0:
1840                 /* Allow no source specification when stopping */
1841                 if (freq_out)
1842                         return -EINVAL;
1843                 break;
1844         case WM8995_FLL_SRC_MCLK1:
1845         case WM8995_FLL_SRC_MCLK2:
1846         case WM8995_FLL_SRC_LRCLK:
1847         case WM8995_FLL_SRC_BCLK:
1848                 break;
1849         default:
1850                 return -EINVAL;
1851         }
1852
1853         /* Are we changing anything? */
1854         if (wm8995->fll[id].src == src &&
1855             wm8995->fll[id].in == freq_in && wm8995->fll[id].out == freq_out)
1856                 return 0;
1857
1858         /* If we're stopping the FLL redo the old config - no
1859          * registers will actually be written but we avoid GCC flow
1860          * analysis bugs spewing warnings.
1861          */
1862         if (freq_out)
1863                 ret = wm8995_get_fll_config(&fll, freq_in, freq_out);
1864         else
1865                 ret = wm8995_get_fll_config(&fll, wm8995->fll[id].in,
1866                                             wm8995->fll[id].out);
1867         if (ret < 0)
1868                 return ret;
1869
1870         /* Gate the AIF clocks while we reclock */
1871         snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1,
1872                             WM8995_AIF1CLK_ENA_MASK, 0);
1873         snd_soc_update_bits(codec, WM8995_AIF2_CLOCKING_1,
1874                             WM8995_AIF2CLK_ENA_MASK, 0);
1875
1876         /* We always need to disable the FLL while reconfiguring */
1877         snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_1 + reg_offset,
1878                             WM8995_FLL1_ENA_MASK, 0);
1879
1880         reg = (fll.outdiv << WM8995_FLL1_OUTDIV_SHIFT) |
1881               (fll.fll_fratio << WM8995_FLL1_FRATIO_SHIFT);
1882         snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_2 + reg_offset,
1883                             WM8995_FLL1_OUTDIV_MASK |
1884                             WM8995_FLL1_FRATIO_MASK, reg);
1885
1886         snd_soc_write(codec, WM8995_FLL1_CONTROL_3 + reg_offset, fll.k);
1887
1888         snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_4 + reg_offset,
1889                             WM8995_FLL1_N_MASK,
1890                             fll.n << WM8995_FLL1_N_SHIFT);
1891
1892         snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_5 + reg_offset,
1893                             WM8995_FLL1_REFCLK_DIV_MASK |
1894                             WM8995_FLL1_REFCLK_SRC_MASK,
1895                             (fll.clk_ref_div << WM8995_FLL1_REFCLK_DIV_SHIFT) |
1896                             (src - 1));
1897
1898         if (freq_out)
1899                 snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_1 + reg_offset,
1900                                     WM8995_FLL1_ENA_MASK, WM8995_FLL1_ENA);
1901
1902         wm8995->fll[id].in = freq_in;
1903         wm8995->fll[id].out = freq_out;
1904         wm8995->fll[id].src = src;
1905
1906         /* Enable any gated AIF clocks */
1907         snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1,
1908                             WM8995_AIF1CLK_ENA_MASK, aif1);
1909         snd_soc_update_bits(codec, WM8995_AIF2_CLOCKING_1,
1910                             WM8995_AIF2CLK_ENA_MASK, aif2);
1911
1912         configure_clock(codec);
1913
1914         return 0;
1915 }
1916
1917 static int wm8995_set_dai_sysclk(struct snd_soc_dai *dai,
1918                                  int clk_id, unsigned int freq, int dir)
1919 {
1920         struct snd_soc_codec *codec;
1921         struct wm8995_priv *wm8995;
1922
1923         codec = dai->codec;
1924         wm8995 = snd_soc_codec_get_drvdata(codec);
1925
1926         switch (dai->id) {
1927         case 0:
1928         case 1:
1929                 break;
1930         default:
1931                 /* AIF3 shares clocking with AIF1/2 */
1932                 return -EINVAL;
1933         }
1934
1935         switch (clk_id) {
1936         case WM8995_SYSCLK_MCLK1:
1937                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1;
1938                 wm8995->mclk[0] = freq;
1939                 dev_dbg(dai->dev, "AIF%d using MCLK1 at %uHz\n",
1940                         dai->id + 1, freq);
1941                 break;
1942         case WM8995_SYSCLK_MCLK2:
1943                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1;
1944                 wm8995->mclk[1] = freq;
1945                 dev_dbg(dai->dev, "AIF%d using MCLK2 at %uHz\n",
1946                         dai->id + 1, freq);
1947                 break;
1948         case WM8995_SYSCLK_FLL1:
1949                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL1;
1950                 dev_dbg(dai->dev, "AIF%d using FLL1\n", dai->id + 1);
1951                 break;
1952         case WM8995_SYSCLK_FLL2:
1953                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL2;
1954                 dev_dbg(dai->dev, "AIF%d using FLL2\n", dai->id + 1);
1955                 break;
1956         case WM8995_SYSCLK_OPCLK:
1957         default:
1958                 dev_err(dai->dev, "Unknown clock source %d\n", clk_id);
1959                 return -EINVAL;
1960         }
1961
1962         configure_clock(codec);
1963
1964         return 0;
1965 }
1966
1967 static int wm8995_set_bias_level(struct snd_soc_codec *codec,
1968                                  enum snd_soc_bias_level level)
1969 {
1970         struct wm8995_priv *wm8995;
1971         int ret;
1972
1973         wm8995 = snd_soc_codec_get_drvdata(codec);
1974         switch (level) {
1975         case SND_SOC_BIAS_ON:
1976         case SND_SOC_BIAS_PREPARE:
1977                 break;
1978         case SND_SOC_BIAS_STANDBY:
1979                 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
1980                         ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies),
1981                                                     wm8995->supplies);
1982                         if (ret)
1983                                 return ret;
1984
1985                         ret = regcache_sync(wm8995->regmap);
1986                         if (ret) {
1987                                 dev_err(codec->dev,
1988                                         "Failed to sync cache: %d\n", ret);
1989                                 return ret;
1990                         }
1991
1992                         snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
1993                                             WM8995_BG_ENA_MASK, WM8995_BG_ENA);
1994                 }
1995                 break;
1996         case SND_SOC_BIAS_OFF:
1997                 snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
1998                                     WM8995_BG_ENA_MASK, 0);
1999                 regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies),
2000                                        wm8995->supplies);
2001                 break;
2002         }
2003
2004         codec->dapm.bias_level = level;
2005         return 0;
2006 }
2007
2008 #ifdef CONFIG_PM
2009 static int wm8995_suspend(struct snd_soc_codec *codec)
2010 {
2011         wm8995_set_bias_level(codec, SND_SOC_BIAS_OFF);
2012         return 0;
2013 }
2014
2015 static int wm8995_resume(struct snd_soc_codec *codec)
2016 {
2017         wm8995_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
2018         return 0;
2019 }
2020 #else
2021 #define wm8995_suspend NULL
2022 #define wm8995_resume NULL
2023 #endif
2024
2025 static int wm8995_remove(struct snd_soc_codec *codec)
2026 {
2027         struct wm8995_priv *wm8995;
2028         int i;
2029
2030         wm8995 = snd_soc_codec_get_drvdata(codec);
2031         wm8995_set_bias_level(codec, SND_SOC_BIAS_OFF);
2032
2033         for (i = 0; i < ARRAY_SIZE(wm8995->supplies); ++i)
2034                 regulator_unregister_notifier(wm8995->supplies[i].consumer,
2035                                               &wm8995->disable_nb[i]);
2036
2037         regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2038         return 0;
2039 }
2040
2041 static int wm8995_probe(struct snd_soc_codec *codec)
2042 {
2043         struct wm8995_priv *wm8995;
2044         int i;
2045         int ret;
2046
2047         wm8995 = snd_soc_codec_get_drvdata(codec);
2048         wm8995->codec = codec;
2049
2050         codec->control_data = wm8995->regmap;
2051         ret = snd_soc_codec_set_cache_io(codec, 16, 16, SND_SOC_REGMAP);
2052         if (ret < 0) {
2053                 dev_err(codec->dev, "Failed to set cache i/o: %d\n", ret);
2054                 return ret;
2055         }
2056
2057         for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++)
2058                 wm8995->supplies[i].supply = wm8995_supply_names[i];
2059
2060         ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8995->supplies),
2061                                  wm8995->supplies);
2062         if (ret) {
2063                 dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
2064                 return ret;
2065         }
2066
2067         wm8995->disable_nb[0].notifier_call = wm8995_regulator_event_0;
2068         wm8995->disable_nb[1].notifier_call = wm8995_regulator_event_1;
2069         wm8995->disable_nb[2].notifier_call = wm8995_regulator_event_2;
2070         wm8995->disable_nb[3].notifier_call = wm8995_regulator_event_3;
2071         wm8995->disable_nb[4].notifier_call = wm8995_regulator_event_4;
2072         wm8995->disable_nb[5].notifier_call = wm8995_regulator_event_5;
2073         wm8995->disable_nb[6].notifier_call = wm8995_regulator_event_6;
2074         wm8995->disable_nb[7].notifier_call = wm8995_regulator_event_7;
2075
2076         /* This should really be moved into the regulator core */
2077         for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++) {
2078                 ret = regulator_register_notifier(wm8995->supplies[i].consumer,
2079                                                   &wm8995->disable_nb[i]);
2080                 if (ret) {
2081                         dev_err(codec->dev,
2082                                 "Failed to register regulator notifier: %d\n",
2083                                 ret);
2084                 }
2085         }
2086
2087         ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies),
2088                                     wm8995->supplies);
2089         if (ret) {
2090                 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
2091                 goto err_reg_get;
2092         }
2093
2094         ret = snd_soc_read(codec, WM8995_SOFTWARE_RESET);
2095         if (ret < 0) {
2096                 dev_err(codec->dev, "Failed to read device ID: %d\n", ret);
2097                 goto err_reg_enable;
2098         }
2099
2100         if (ret != 0x8995) {
2101                 dev_err(codec->dev, "Invalid device ID: %#x\n", ret);
2102                 ret = -EINVAL;
2103                 goto err_reg_enable;
2104         }
2105
2106         ret = snd_soc_write(codec, WM8995_SOFTWARE_RESET, 0);
2107         if (ret < 0) {
2108                 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
2109                 goto err_reg_enable;
2110         }
2111
2112         wm8995_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
2113
2114         /* Latch volume updates (right only; we always do left then right). */
2115         snd_soc_update_bits(codec, WM8995_AIF1_DAC1_RIGHT_VOLUME,
2116                             WM8995_AIF1DAC1_VU_MASK, WM8995_AIF1DAC1_VU);
2117         snd_soc_update_bits(codec, WM8995_AIF1_DAC2_RIGHT_VOLUME,
2118                             WM8995_AIF1DAC2_VU_MASK, WM8995_AIF1DAC2_VU);
2119         snd_soc_update_bits(codec, WM8995_AIF2_DAC_RIGHT_VOLUME,
2120                             WM8995_AIF2DAC_VU_MASK, WM8995_AIF2DAC_VU);
2121         snd_soc_update_bits(codec, WM8995_AIF1_ADC1_RIGHT_VOLUME,
2122                             WM8995_AIF1ADC1_VU_MASK, WM8995_AIF1ADC1_VU);
2123         snd_soc_update_bits(codec, WM8995_AIF1_ADC2_RIGHT_VOLUME,
2124                             WM8995_AIF1ADC2_VU_MASK, WM8995_AIF1ADC2_VU);
2125         snd_soc_update_bits(codec, WM8995_AIF2_ADC_RIGHT_VOLUME,
2126                             WM8995_AIF2ADC_VU_MASK, WM8995_AIF1ADC2_VU);
2127         snd_soc_update_bits(codec, WM8995_DAC1_RIGHT_VOLUME,
2128                             WM8995_DAC1_VU_MASK, WM8995_DAC1_VU);
2129         snd_soc_update_bits(codec, WM8995_DAC2_RIGHT_VOLUME,
2130                             WM8995_DAC2_VU_MASK, WM8995_DAC2_VU);
2131         snd_soc_update_bits(codec, WM8995_RIGHT_LINE_INPUT_1_VOLUME,
2132                             WM8995_IN1_VU_MASK, WM8995_IN1_VU);
2133
2134         wm8995_update_class_w(codec);
2135
2136         snd_soc_add_codec_controls(codec, wm8995_snd_controls,
2137                              ARRAY_SIZE(wm8995_snd_controls));
2138         snd_soc_dapm_new_controls(&codec->dapm, wm8995_dapm_widgets,
2139                                   ARRAY_SIZE(wm8995_dapm_widgets));
2140         snd_soc_dapm_add_routes(&codec->dapm, wm8995_intercon,
2141                                 ARRAY_SIZE(wm8995_intercon));
2142
2143         return 0;
2144
2145 err_reg_enable:
2146         regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2147 err_reg_get:
2148         regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2149         return ret;
2150 }
2151
2152 #define WM8995_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
2153                         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
2154
2155 static const struct snd_soc_dai_ops wm8995_aif1_dai_ops = {
2156         .set_sysclk = wm8995_set_dai_sysclk,
2157         .set_fmt = wm8995_set_dai_fmt,
2158         .hw_params = wm8995_hw_params,
2159         .digital_mute = wm8995_aif_mute,
2160         .set_pll = wm8995_set_fll,
2161         .set_tristate = wm8995_set_tristate,
2162 };
2163
2164 static const struct snd_soc_dai_ops wm8995_aif2_dai_ops = {
2165         .set_sysclk = wm8995_set_dai_sysclk,
2166         .set_fmt = wm8995_set_dai_fmt,
2167         .hw_params = wm8995_hw_params,
2168         .digital_mute = wm8995_aif_mute,
2169         .set_pll = wm8995_set_fll,
2170         .set_tristate = wm8995_set_tristate,
2171 };
2172
2173 static const struct snd_soc_dai_ops wm8995_aif3_dai_ops = {
2174         .set_tristate = wm8995_set_tristate,
2175 };
2176
2177 static struct snd_soc_dai_driver wm8995_dai[] = {
2178         {
2179                 .name = "wm8995-aif1",
2180                 .playback = {
2181                         .stream_name = "AIF1 Playback",
2182                         .channels_min = 2,
2183                         .channels_max = 2,
2184                         .rates = SNDRV_PCM_RATE_8000_96000,
2185                         .formats = WM8995_FORMATS
2186                 },
2187                 .capture = {
2188                         .stream_name = "AIF1 Capture",
2189                         .channels_min = 2,
2190                         .channels_max = 2,
2191                         .rates = SNDRV_PCM_RATE_8000_48000,
2192                         .formats = WM8995_FORMATS
2193                 },
2194                 .ops = &wm8995_aif1_dai_ops
2195         },
2196         {
2197                 .name = "wm8995-aif2",
2198                 .playback = {
2199                         .stream_name = "AIF2 Playback",
2200                         .channels_min = 2,
2201                         .channels_max = 2,
2202                         .rates = SNDRV_PCM_RATE_8000_96000,
2203                         .formats = WM8995_FORMATS
2204                 },
2205                 .capture = {
2206                         .stream_name = "AIF2 Capture",
2207                         .channels_min = 2,
2208                         .channels_max = 2,
2209                         .rates = SNDRV_PCM_RATE_8000_48000,
2210                         .formats = WM8995_FORMATS
2211                 },
2212                 .ops = &wm8995_aif2_dai_ops
2213         },
2214         {
2215                 .name = "wm8995-aif3",
2216                 .playback = {
2217                         .stream_name = "AIF3 Playback",
2218                         .channels_min = 2,
2219                         .channels_max = 2,
2220                         .rates = SNDRV_PCM_RATE_8000_96000,
2221                         .formats = WM8995_FORMATS
2222                 },
2223                 .capture = {
2224                         .stream_name = "AIF3 Capture",
2225                         .channels_min = 2,
2226                         .channels_max = 2,
2227                         .rates = SNDRV_PCM_RATE_8000_48000,
2228                         .formats = WM8995_FORMATS
2229                 },
2230                 .ops = &wm8995_aif3_dai_ops
2231         }
2232 };
2233
2234 static struct snd_soc_codec_driver soc_codec_dev_wm8995 = {
2235         .probe = wm8995_probe,
2236         .remove = wm8995_remove,
2237         .suspend = wm8995_suspend,
2238         .resume = wm8995_resume,
2239         .set_bias_level = wm8995_set_bias_level,
2240         .idle_bias_off = true,
2241 };
2242
2243 static struct regmap_config wm8995_regmap = {
2244         .reg_bits = 16,
2245         .val_bits = 16,
2246
2247         .max_register = WM8995_MAX_REGISTER,
2248         .reg_defaults = wm8995_reg_defaults,
2249         .num_reg_defaults = ARRAY_SIZE(wm8995_reg_defaults),
2250         .volatile_reg = wm8995_volatile,
2251         .readable_reg = wm8995_readable,
2252         .cache_type = REGCACHE_RBTREE,
2253 };
2254
2255 #if defined(CONFIG_SPI_MASTER)
2256 static int wm8995_spi_probe(struct spi_device *spi)
2257 {
2258         struct wm8995_priv *wm8995;
2259         int ret;
2260
2261         wm8995 = devm_kzalloc(&spi->dev, sizeof(*wm8995), GFP_KERNEL);
2262         if (!wm8995)
2263                 return -ENOMEM;
2264
2265         spi_set_drvdata(spi, wm8995);
2266
2267         wm8995->regmap = devm_regmap_init_spi(spi, &wm8995_regmap);
2268         if (IS_ERR(wm8995->regmap)) {
2269                 ret = PTR_ERR(wm8995->regmap);
2270                 dev_err(&spi->dev, "Failed to register regmap: %d\n", ret);
2271                 return ret;
2272         }
2273
2274         ret = snd_soc_register_codec(&spi->dev,
2275                                      &soc_codec_dev_wm8995, wm8995_dai,
2276                                      ARRAY_SIZE(wm8995_dai));
2277         return ret;
2278 }
2279
2280 static int wm8995_spi_remove(struct spi_device *spi)
2281 {
2282         snd_soc_unregister_codec(&spi->dev);
2283         return 0;
2284 }
2285
2286 static struct spi_driver wm8995_spi_driver = {
2287         .driver = {
2288                 .name = "wm8995",
2289                 .owner = THIS_MODULE,
2290         },
2291         .probe = wm8995_spi_probe,
2292         .remove = wm8995_spi_remove
2293 };
2294 #endif
2295
2296 #if IS_ENABLED(CONFIG_I2C)
2297 static int wm8995_i2c_probe(struct i2c_client *i2c,
2298                             const struct i2c_device_id *id)
2299 {
2300         struct wm8995_priv *wm8995;
2301         int ret;
2302
2303         wm8995 = devm_kzalloc(&i2c->dev, sizeof(*wm8995), GFP_KERNEL);
2304         if (!wm8995)
2305                 return -ENOMEM;
2306
2307         i2c_set_clientdata(i2c, wm8995);
2308
2309         wm8995->regmap = devm_regmap_init_i2c(i2c, &wm8995_regmap);
2310         if (IS_ERR(wm8995->regmap)) {
2311                 ret = PTR_ERR(wm8995->regmap);
2312                 dev_err(&i2c->dev, "Failed to register regmap: %d\n", ret);
2313                 return ret;
2314         }
2315
2316         ret = snd_soc_register_codec(&i2c->dev,
2317                                      &soc_codec_dev_wm8995, wm8995_dai,
2318                                      ARRAY_SIZE(wm8995_dai));
2319         if (ret < 0)
2320                 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
2321
2322         return ret;
2323 }
2324
2325 static int wm8995_i2c_remove(struct i2c_client *client)
2326 {
2327         snd_soc_unregister_codec(&client->dev);
2328         return 0;
2329 }
2330
2331 static const struct i2c_device_id wm8995_i2c_id[] = {
2332         {"wm8995", 0},
2333         {}
2334 };
2335
2336 MODULE_DEVICE_TABLE(i2c, wm8995_i2c_id);
2337
2338 static struct i2c_driver wm8995_i2c_driver = {
2339         .driver = {
2340                 .name = "wm8995",
2341                 .owner = THIS_MODULE,
2342         },
2343         .probe = wm8995_i2c_probe,
2344         .remove = wm8995_i2c_remove,
2345         .id_table = wm8995_i2c_id
2346 };
2347 #endif
2348
2349 static int __init wm8995_modinit(void)
2350 {
2351         int ret = 0;
2352
2353 #if IS_ENABLED(CONFIG_I2C)
2354         ret = i2c_add_driver(&wm8995_i2c_driver);
2355         if (ret) {
2356                 printk(KERN_ERR "Failed to register wm8995 I2C driver: %d\n",
2357                        ret);
2358         }
2359 #endif
2360 #if defined(CONFIG_SPI_MASTER)
2361         ret = spi_register_driver(&wm8995_spi_driver);
2362         if (ret) {
2363                 printk(KERN_ERR "Failed to register wm8995 SPI driver: %d\n",
2364                        ret);
2365         }
2366 #endif
2367         return ret;
2368 }
2369
2370 module_init(wm8995_modinit);
2371
2372 static void __exit wm8995_exit(void)
2373 {
2374 #if IS_ENABLED(CONFIG_I2C)
2375         i2c_del_driver(&wm8995_i2c_driver);
2376 #endif
2377 #if defined(CONFIG_SPI_MASTER)
2378         spi_unregister_driver(&wm8995_spi_driver);
2379 #endif
2380 }
2381
2382 module_exit(wm8995_exit);
2383
2384 MODULE_DESCRIPTION("ASoC WM8995 driver");
2385 MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>");
2386 MODULE_LICENSE("GPL");