sound/soc/codecs/wm8995.c

   1 /*
   2  * wm8995.c  --  WM8995 ALSA SoC Audio driver
   3  *
   4  * Copyright 2010 Wolfson Microelectronics plc
   5  *
   6  * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
   7  *
   8  * Based on wm8994.c and wm_hubs.c by Mark Brown
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/module.h>
  16 #include <linux/moduleparam.h>
  17 #include <linux/init.h>
  18 #include <linux/delay.h>
  19 #include <linux/pm.h>
  20 #include <linux/i2c.h>
  21 #include <linux/regmap.h>
  22 #include <linux/spi/spi.h>
  23 #include <linux/regulator/consumer.h>
  24 #include <linux/slab.h>
  25 #include <sound/core.h>
  26 #include <sound/pcm.h>
  27 #include <sound/pcm_params.h>
  28 #include <sound/soc.h>
  29 #include <sound/soc-dapm.h>
  30 #include <sound/initval.h>
  31 #include <sound/tlv.h>
  32
  33 #include "wm8995.h"
  34
  35 #define WM8995_NUM_SUPPLIES 8
  36 static const char *wm8995_supply_names[WM8995_NUM_SUPPLIES] = {
  37         "DCVDD",
  38         "DBVDD1",
  39         "DBVDD2",
  40         "DBVDD3",
  41         "AVDD1",
  42         "AVDD2",
  43         "CPVDD",
  44         "MICVDD"
  45 };
  46
  47 static struct reg_default wm8995_reg_defaults[] = {
  48         { 0, 0x8995 },
  49         { 5, 0x0100 },
  50         { 16, 0x000b },
  51         { 17, 0x000b },
  52         { 24, 0x02c0 },
  53         { 25, 0x02c0 },
  54         { 26, 0x02c0 },
  55         { 27, 0x02c0 },
  56         { 28, 0x000f },
  57         { 32, 0x0005 },
  58         { 33, 0x0005 },
  59         { 40, 0x0003 },
  60         { 41, 0x0013 },
  61         { 48, 0x0004 },
  62         { 56, 0x09f8 },
  63         { 64, 0x1f25 },
  64         { 69, 0x0004 },
  65         { 82, 0xaaaa },
  66         { 84, 0x2a2a },
  67         { 146, 0x0060 },
  68         { 256, 0x0002 },
  69         { 257, 0x8004 },
  70         { 520, 0x0010 },
  71         { 528, 0x0083 },
  72         { 529, 0x0083 },
  73         { 548, 0x0c80 },
  74         { 580, 0x0c80 },
  75         { 768, 0x4050 },
  76         { 769, 0x4000 },
  77         { 771, 0x0040 },
  78         { 772, 0x0040 },
  79         { 773, 0x0040 },
  80         { 774, 0x0004 },
  81         { 775, 0x0100 },
  82         { 784, 0x4050 },
  83         { 785, 0x4000 },
  84         { 787, 0x0040 },
  85         { 788, 0x0040 },
  86         { 789, 0x0040 },
  87         { 1024, 0x00c0 },
  88         { 1025, 0x00c0 },
  89         { 1026, 0x00c0 },
  90         { 1027, 0x00c0 },
  91         { 1028, 0x00c0 },
  92         { 1029, 0x00c0 },
  93         { 1030, 0x00c0 },
  94         { 1031, 0x00c0 },
  95         { 1056, 0x0200 },
  96         { 1057, 0x0010 },
  97         { 1058, 0x0200 },
  98         { 1059, 0x0010 },
  99         { 1088, 0x0098 },
 100         { 1089, 0x0845 },
 101         { 1104, 0x0098 },
 102         { 1105, 0x0845 },
 103         { 1152, 0x6318 },
 104         { 1153, 0x6300 },
 105         { 1154, 0x0fca },
 106         { 1155, 0x0400 },
 107         { 1156, 0x00d8 },
 108         { 1157, 0x1eb5 },
 109         { 1158, 0xf145 },
 110         { 1159, 0x0b75 },
 111         { 1160, 0x01c5 },
 112         { 1161, 0x1c58 },
 113         { 1162, 0xf373 },
 114         { 1163, 0x0a54 },
 115         { 1164, 0x0558 },
 116         { 1165, 0x168e },
 117         { 1166, 0xf829 },
 118         { 1167, 0x07ad },
 119         { 1168, 0x1103 },
 120         { 1169, 0x0564 },
 121         { 1170, 0x0559 },
 122         { 1171, 0x4000 },
 123         { 1184, 0x6318 },
 124         { 1185, 0x6300 },
 125         { 1186, 0x0fca },
 126         { 1187, 0x0400 },
 127         { 1188, 0x00d8 },
 128         { 1189, 0x1eb5 },
 129         { 1190, 0xf145 },
 130         { 1191, 0x0b75 },
 131         { 1192, 0x01c5 },
 132         { 1193, 0x1c58 },
 133         { 1194, 0xf373 },
 134         { 1195, 0x0a54 },
 135         { 1196, 0x0558 },
 136         { 1197, 0x168e },
 137         { 1198, 0xf829 },
 138         { 1199, 0x07ad },
 139         { 1200, 0x1103 },
 140         { 1201, 0x0564 },
 141         { 1202, 0x0559 },
 142         { 1203, 0x4000 },
 143         { 1280, 0x00c0 },
 144         { 1281, 0x00c0 },
 145         { 1282, 0x00c0 },
 146         { 1283, 0x00c0 },
 147         { 1312, 0x0200 },
 148         { 1313, 0x0010 },
 149         { 1344, 0x0098 },
 150         { 1345, 0x0845 },
 151         { 1408, 0x6318 },
 152         { 1409, 0x6300 },
 153         { 1410, 0x0fca },
 154         { 1411, 0x0400 },
 155         { 1412, 0x00d8 },
 156         { 1413, 0x1eb5 },
 157         { 1414, 0xf145 },
 158         { 1415, 0x0b75 },
 159         { 1416, 0x01c5 },
 160         { 1417, 0x1c58 },
 161         { 1418, 0xf373 },
 162         { 1419, 0x0a54 },
 163         { 1420, 0x0558 },
 164         { 1421, 0x168e },
 165         { 1422, 0xf829 },
 166         { 1423, 0x07ad },
 167         { 1424, 0x1103 },
 168         { 1425, 0x0564 },
 169         { 1426, 0x0559 },
 170         { 1427, 0x4000 },
 171         { 1568, 0x0002 },
 172         { 1792, 0xa100 },
 173         { 1793, 0xa101 },
 174         { 1794, 0xa101 },
 175         { 1795, 0xa101 },
 176         { 1796, 0xa101 },
 177         { 1797, 0xa101 },
 178         { 1798, 0xa101 },
 179         { 1799, 0xa101 },
 180         { 1800, 0xa101 },
 181         { 1801, 0xa101 },
 182         { 1802, 0xa101 },
 183         { 1803, 0xa101 },
 184         { 1804, 0xa101 },
 185         { 1805, 0xa101 },
 186         { 1825, 0x0055 },
 187         { 1848, 0x3fff },
 188         { 1849, 0x1fff },
 189         { 2049, 0x0001 },
 190         { 2050, 0x0069 },
 191         { 2056, 0x0002 },
 192         { 2057, 0x0003 },
 193         { 2058, 0x0069 },
 194         { 12288, 0x0001 },
 195         { 12289, 0x0001 },
 196         { 12291, 0x0006 },
 197         { 12292, 0x0040 },
 198         { 12293, 0x0001 },
 199         { 12294, 0x000f },
 200         { 12295, 0x0006 },
 201         { 12296, 0x0001 },
 202         { 12297, 0x0003 },
 203         { 12298, 0x0104 },
 204         { 12300, 0x0060 },
 205         { 12301, 0x0011 },
 206         { 12302, 0x0401 },
 207         { 12304, 0x0050 },
 208         { 12305, 0x0003 },
 209         { 12306, 0x0100 },
 210         { 12308, 0x0051 },
 211         { 12309, 0x0003 },
 212         { 12310, 0x0104 },
 213         { 12311, 0x000a },
 214         { 12312, 0x0060 },
 215         { 12313, 0x003b },
 216         { 12314, 0x0502 },
 217         { 12315, 0x0100 },
 218         { 12316, 0x2fff },
 219         { 12320, 0x2fff },
 220         { 12324, 0x2fff },
 221         { 12328, 0x2fff },
 222         { 12332, 0x2fff },
 223         { 12336, 0x2fff },
 224         { 12340, 0x2fff },
 225         { 12344, 0x2fff },
 226         { 12348, 0x2fff },
 227         { 12352, 0x0001 },
 228         { 12353, 0x0001 },
 229         { 12355, 0x0006 },
 230         { 12356, 0x0040 },
 231         { 12357, 0x0001 },
 232         { 12358, 0x000f },
 233         { 12359, 0x0006 },
 234         { 12360, 0x0001 },
 235         { 12361, 0x0003 },
 236         { 12362, 0x0104 },
 237         { 12364, 0x0060 },
 238         { 12365, 0x0011 },
 239         { 12366, 0x0401 },
 240         { 12368, 0x0050 },
 241         { 12369, 0x0003 },
 242         { 12370, 0x0100 },
 243         { 12372, 0x0060 },
 244         { 12373, 0x003b },
 245         { 12374, 0x0502 },
 246         { 12375, 0x0100 },
 247         { 12376, 0x2fff },
 248         { 12380, 0x2fff },
 249         { 12384, 0x2fff },
 250         { 12388, 0x2fff },
 251         { 12392, 0x2fff },
 252         { 12396, 0x2fff },
 253         { 12400, 0x2fff },
 254         { 12404, 0x2fff },
 255         { 12408, 0x2fff },
 256         { 12412, 0x2fff },
 257         { 12416, 0x0001 },
 258         { 12417, 0x0001 },
 259         { 12419, 0x0006 },
 260         { 12420, 0x0040 },
 261         { 12421, 0x0001 },
 262         { 12422, 0x000f },
 263         { 12423, 0x0006 },
 264         { 12424, 0x0001 },
 265         { 12425, 0x0003 },
 266         { 12426, 0x0106 },
 267         { 12428, 0x0061 },
 268         { 12429, 0x0011 },
 269         { 12430, 0x0401 },
 270         { 12432, 0x0050 },
 271         { 12433, 0x0003 },
 272         { 12434, 0x0102 },
 273         { 12436, 0x0051 },
 274         { 12437, 0x0003 },
 275         { 12438, 0x0106 },
 276         { 12439, 0x000a },
 277         { 12440, 0x0061 },
 278         { 12441, 0x003b },
 279         { 12442, 0x0502 },
 280         { 12443, 0x0100 },
 281         { 12444, 0x2fff },
 282         { 12448, 0x2fff },
 283         { 12452, 0x2fff },
 284         { 12456, 0x2fff },
 285         { 12460, 0x2fff },
 286         { 12464, 0x2fff },
 287         { 12468, 0x2fff },
 288         { 12472, 0x2fff },
 289         { 12476, 0x2fff },
 290         { 12480, 0x0001 },
 291         { 12481, 0x0001 },
 292         { 12483, 0x0006 },
 293         { 12484, 0x0040 },
 294         { 12485, 0x0001 },
 295         { 12486, 0x000f },
 296         { 12487, 0x0006 },
 297         { 12488, 0x0001 },
 298         { 12489, 0x0003 },
 299         { 12490, 0x0106 },
 300         { 12492, 0x0061 },
 301         { 12493, 0x0011 },
 302         { 12494, 0x0401 },
 303         { 12496, 0x0050 },
 304         { 12497, 0x0003 },
 305         { 12498, 0x0102 },
 306         { 12500, 0x0061 },
 307         { 12501, 0x003b },
 308         { 12502, 0x0502 },
 309         { 12503, 0x0100 },
 310         { 12504, 0x2fff },
 311         { 12508, 0x2fff },
 312         { 12512, 0x2fff },
 313         { 12516, 0x2fff },
 314         { 12520, 0x2fff },
 315         { 12524, 0x2fff },
 316         { 12528, 0x2fff },
 317         { 12532, 0x2fff },
 318         { 12536, 0x2fff },
 319         { 12540, 0x2fff },
 320         { 12544, 0x0060 },
 321         { 12546, 0x0601 },
 322         { 12548, 0x0050 },
 323         { 12550, 0x0100 },
 324         { 12552, 0x0001 },
 325         { 12554, 0x0104 },
 326         { 12555, 0x0100 },
 327         { 12556, 0x2fff },
 328         { 12560, 0x2fff },
 329         { 12564, 0x2fff },
 330         { 12568, 0x2fff },
 331         { 12572, 0x2fff },
 332         { 12576, 0x2fff },
 333         { 12580, 0x2fff },
 334         { 12584, 0x2fff },
 335         { 12588, 0x2fff },
 336         { 12592, 0x2fff },
 337         { 12596, 0x2fff },
 338         { 12600, 0x2fff },
 339         { 12604, 0x2fff },
 340         { 12608, 0x0061 },
 341         { 12610, 0x0601 },
 342         { 12612, 0x0050 },
 343         { 12614, 0x0102 },
 344         { 12616, 0x0001 },
 345         { 12618, 0x0106 },
 346         { 12619, 0x0100 },
 347         { 12620, 0x2fff },
 348         { 12624, 0x2fff },
 349         { 12628, 0x2fff },
 350         { 12632, 0x2fff },
 351         { 12636, 0x2fff },
 352         { 12640, 0x2fff },
 353         { 12644, 0x2fff },
 354         { 12648, 0x2fff },
 355         { 12652, 0x2fff },
 356         { 12656, 0x2fff },
 357         { 12660, 0x2fff },
 358         { 12664, 0x2fff },
 359         { 12668, 0x2fff },
 360         { 12672, 0x0060 },
 361         { 12674, 0x0601 },
 362         { 12676, 0x0061 },
 363         { 12678, 0x0601 },
 364         { 12680, 0x0050 },
 365         { 12682, 0x0300 },
 366         { 12684, 0x0001 },
 367         { 12686, 0x0304 },
 368         { 12688, 0x0040 },
 369         { 12690, 0x000f },
 370         { 12692, 0x0001 },
 371         { 12695, 0x0100 },
 372 };
 373
 374 struct fll_config {
 375         int src;
 376         int in;
 377         int out;
 378 };
 379
 380 struct wm8995_priv {
 381         struct regmap *regmap;
 382         int sysclk[2];
 383         int mclk[2];
 384         int aifclk[2];
 385         struct fll_config fll[2], fll_suspend[2];
 386         struct regulator_bulk_data supplies[WM8995_NUM_SUPPLIES];
 387         struct notifier_block disable_nb[WM8995_NUM_SUPPLIES];
 388         struct snd_soc_codec *codec;
 389 };
 390
 391 /*
 392  * We can't use the same notifier block for more than one supply and
 393  * there's no way I can see to get from a callback to the caller
 394  * except container_of().
 395  */
 396 #define WM8995_REGULATOR_EVENT(n) \
 397 static int wm8995_regulator_event_##n(struct notifier_block *nb, \
 398                                       unsigned long event, void *data)    \
 399 { \
 400         struct wm8995_priv *wm8995 = container_of(nb, struct wm8995_priv, \
 401                                      disable_nb[n]); \
 402         if (event & REGULATOR_EVENT_DISABLE) { \
 403                 regcache_mark_dirty(wm8995->regmap);    \
 404         } \
 405         return 0; \
 406 }
 407
 408 WM8995_REGULATOR_EVENT(0)
 409 WM8995_REGULATOR_EVENT(1)
 410 WM8995_REGULATOR_EVENT(2)
 411 WM8995_REGULATOR_EVENT(3)
 412 WM8995_REGULATOR_EVENT(4)
 413 WM8995_REGULATOR_EVENT(5)
 414 WM8995_REGULATOR_EVENT(6)
 415 WM8995_REGULATOR_EVENT(7)
 416
 417 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
 418 static const DECLARE_TLV_DB_SCALE(in1lr_pga_tlv, -1650, 150, 0);
 419 static const DECLARE_TLV_DB_SCALE(in1l_boost_tlv, 0, 600, 0);
 420 static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 150, 0);
 421
 422 static const char *in1l_text[] = {
 423         "Differential", "Single-ended IN1LN", "Single-ended IN1LP"
 424 };
 425
 426 static SOC_ENUM_SINGLE_DECL(in1l_enum, WM8995_LEFT_LINE_INPUT_CONTROL,
 427                             2, in1l_text);
 428
 429 static const char *in1r_text[] = {
 430         "Differential", "Single-ended IN1RN", "Single-ended IN1RP"
 431 };
 432
 433 static SOC_ENUM_SINGLE_DECL(in1r_enum, WM8995_LEFT_LINE_INPUT_CONTROL,
 434                             0, in1r_text);
 435
 436 static const char *dmic_src_text[] = {
 437         "DMICDAT1", "DMICDAT2", "DMICDAT3"
 438 };
 439
 440 static SOC_ENUM_SINGLE_DECL(dmic_src1_enum, WM8995_POWER_MANAGEMENT_5,
 441                             8, dmic_src_text);
 442 static SOC_ENUM_SINGLE_DECL(dmic_src2_enum, WM8995_POWER_MANAGEMENT_5,
 443                             6, dmic_src_text);
 444
 445 static const struct snd_kcontrol_new wm8995_snd_controls[] = {
 446         SOC_DOUBLE_R_TLV("DAC1 Volume", WM8995_DAC1_LEFT_VOLUME,
 447                 WM8995_DAC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 448         SOC_DOUBLE_R("DAC1 Switch", WM8995_DAC1_LEFT_VOLUME,
 449                 WM8995_DAC1_RIGHT_VOLUME, 9, 1, 1),
 450
 451         SOC_DOUBLE_R_TLV("DAC2 Volume", WM8995_DAC2_LEFT_VOLUME,
 452                 WM8995_DAC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 453         SOC_DOUBLE_R("DAC2 Switch", WM8995_DAC2_LEFT_VOLUME,
 454                 WM8995_DAC2_RIGHT_VOLUME, 9, 1, 1),
 455
 456         SOC_DOUBLE_R_TLV("AIF1DAC1 Volume", WM8995_AIF1_DAC1_LEFT_VOLUME,
 457                 WM8995_AIF1_DAC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 458         SOC_DOUBLE_R_TLV("AIF1DAC2 Volume", WM8995_AIF1_DAC2_LEFT_VOLUME,
 459                 WM8995_AIF1_DAC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 460         SOC_DOUBLE_R_TLV("AIF2DAC Volume", WM8995_AIF2_DAC_LEFT_VOLUME,
 461                 WM8995_AIF2_DAC_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 462
 463         SOC_DOUBLE_R_TLV("IN1LR Volume", WM8995_LEFT_LINE_INPUT_1_VOLUME,
 464                 WM8995_RIGHT_LINE_INPUT_1_VOLUME, 0, 31, 0, in1lr_pga_tlv),
 465
 466         SOC_SINGLE_TLV("IN1L Boost", WM8995_LEFT_LINE_INPUT_CONTROL,
 467                 4, 3, 0, in1l_boost_tlv),
 468
 469         SOC_ENUM("IN1L Mode", in1l_enum),
 470         SOC_ENUM("IN1R Mode", in1r_enum),
 471
 472         SOC_ENUM("DMIC1 SRC", dmic_src1_enum),
 473         SOC_ENUM("DMIC2 SRC", dmic_src2_enum),
 474
 475         SOC_DOUBLE_TLV("DAC1 Sidetone Volume", WM8995_DAC1_MIXER_VOLUMES, 0, 5,
 476                 24, 0, sidetone_tlv),
 477         SOC_DOUBLE_TLV("DAC2 Sidetone Volume", WM8995_DAC2_MIXER_VOLUMES, 0, 5,
 478                 24, 0, sidetone_tlv),
 479
 480         SOC_DOUBLE_R_TLV("AIF1ADC1 Volume", WM8995_AIF1_ADC1_LEFT_VOLUME,
 481                 WM8995_AIF1_ADC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 482         SOC_DOUBLE_R_TLV("AIF1ADC2 Volume", WM8995_AIF1_ADC2_LEFT_VOLUME,
 483                 WM8995_AIF1_ADC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
 484         SOC_DOUBLE_R_TLV("AIF2ADC Volume", WM8995_AIF2_ADC_LEFT_VOLUME,
 485                 WM8995_AIF2_ADC_RIGHT_VOLUME, 0, 96, 0, digital_tlv)
 486 };
 487
 488 static void wm8995_update_class_w(struct snd_soc_codec *codec)
 489 {
 490         int enable = 1;
 491         int source = 0;  /* GCC flow analysis can't track enable */
 492         int reg, reg_r;
 493
 494         /* We also need the same setting for L/R and only one path */
 495         reg = snd_soc_read(codec, WM8995_DAC1_LEFT_MIXER_ROUTING);
 496         switch (reg) {
 497         case WM8995_AIF2DACL_TO_DAC1L:
 498                 dev_dbg(codec->dev, "Class W source AIF2DAC\n");
 499                 source = 2 << WM8995_CP_DYN_SRC_SEL_SHIFT;
 500                 break;
 501         case WM8995_AIF1DAC2L_TO_DAC1L:
 502                 dev_dbg(codec->dev, "Class W source AIF1DAC2\n");
 503                 source = 1 << WM8995_CP_DYN_SRC_SEL_SHIFT;
 504                 break;
 505         case WM8995_AIF1DAC1L_TO_DAC1L:
 506                 dev_dbg(codec->dev, "Class W source AIF1DAC1\n");
 507                 source = 0 << WM8995_CP_DYN_SRC_SEL_SHIFT;
 508                 break;
 509         default:
 510                 dev_dbg(codec->dev, "DAC mixer setting: %x\n", reg);
 511                 enable = 0;
 512                 break;
 513         }
 514
 515         reg_r = snd_soc_read(codec, WM8995_DAC1_RIGHT_MIXER_ROUTING);
 516         if (reg_r != reg) {
 517                 dev_dbg(codec->dev, "Left and right DAC mixers different\n");
 518                 enable = 0;
 519         }
 520
 521         if (enable) {
 522                 dev_dbg(codec->dev, "Class W enabled\n");
 523                 snd_soc_update_bits(codec, WM8995_CLASS_W_1,
 524                                     WM8995_CP_DYN_PWR_MASK |
 525                                     WM8995_CP_DYN_SRC_SEL_MASK,
 526                                     source | WM8995_CP_DYN_PWR);
 527         } else {
 528                 dev_dbg(codec->dev, "Class W disabled\n");
 529                 snd_soc_update_bits(codec, WM8995_CLASS_W_1,
 530                                     WM8995_CP_DYN_PWR_MASK, 0);
 531         }
 532 }
 533
 534 static int check_clk_sys(struct snd_soc_dapm_widget *source,
 535                          struct snd_soc_dapm_widget *sink)
 536 {
 537         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
 565         codec = w->codec;
 566
 567         switch (event) {
 568         case SND_SOC_DAPM_PRE_PMU:
 569                 /* Enable the headphone amp */
 570                 snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 571                                     WM8995_HPOUT1L_ENA_MASK |
 572                                     WM8995_HPOUT1R_ENA_MASK,
 573                                     WM8995_HPOUT1L_ENA |
 574                                     WM8995_HPOUT1R_ENA);
 575
 576                 /* Enable the second stage */
 577                 snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1,
 578                                     WM8995_HPOUT1L_DLY_MASK |
 579                                     WM8995_HPOUT1R_DLY_MASK,
 580                                     WM8995_HPOUT1L_DLY |
 581                                     WM8995_HPOUT1R_DLY);
 582                 break;
 583         case SND_SOC_DAPM_PRE_PMD:
 584                 snd_soc_update_bits(codec, WM8995_CHARGE_PUMP_1,
 585                                     WM8995_CP_ENA_MASK, 0);
 586                 break;
 587         }
 588
 589         return 0;
 590 }
 591
 592 static void dc_servo_cmd(struct snd_soc_codec *codec,
 593                          unsigned int reg, unsigned int val, unsigned int mask)
 594 {
 595         int timeout = 10;
 596
 597         dev_dbg(codec->dev, "%s: reg = %#x, val = %#x, mask = %#x\n",
 598                 __func__, reg, val, mask);
 599
 600         snd_soc_write(codec, reg, val);
 601         while (timeout--) {
 602                 msleep(10);
 603                 val = snd_soc_read(codec, WM8995_DC_SERVO_READBACK_0);
 604                 if ((val & mask) == mask)
 605                         return;
 606         }
 607
 608         dev_err(codec->dev, "Timed out waiting for DC Servo\n");
 609 }
 610
 611 static int hp_event(struct snd_soc_dapm_widget *w,
 612                     struct snd_kcontrol *kcontrol, int event)
 613 {
 614         struct snd_soc_codec *codec;
 615         unsigned int reg;
 616
 617         codec = w->codec;
 618         reg = snd_soc_read(codec, WM8995_ANALOGUE_HP_1);
 619
 620         switch (event) {
 621         case SND_SOC_DAPM_POST_PMU:
 622                 snd_soc_update_bits(codec, WM8995_CHARGE_PUMP_1,
 623                                     WM8995_CP_ENA_MASK, WM8995_CP_ENA);
 624
 625                 msleep(5);
 626
 627                 snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 628                                     WM8995_HPOUT1L_ENA_MASK |
 629                                     WM8995_HPOUT1R_ENA_MASK,
 630                                     WM8995_HPOUT1L_ENA | WM8995_HPOUT1R_ENA);
 631
 632                 udelay(20);
 633
 634                 reg |= WM8995_HPOUT1L_DLY | WM8995_HPOUT1R_DLY;
 635                 snd_soc_write(codec, WM8995_ANALOGUE_HP_1, reg);
 636
 637                 snd_soc_write(codec, WM8995_DC_SERVO_1, WM8995_DCS_ENA_CHAN_0 |
 638                               WM8995_DCS_ENA_CHAN_1);
 639
 640                 dc_servo_cmd(codec, WM8995_DC_SERVO_2,
 641                              WM8995_DCS_TRIG_STARTUP_0 |
 642                              WM8995_DCS_TRIG_STARTUP_1,
 643                              WM8995_DCS_TRIG_DAC_WR_0 |
 644                              WM8995_DCS_TRIG_DAC_WR_1);
 645
 646                 reg |= WM8995_HPOUT1R_OUTP | WM8995_HPOUT1R_RMV_SHORT |
 647                        WM8995_HPOUT1L_OUTP | WM8995_HPOUT1L_RMV_SHORT;
 648                 snd_soc_write(codec, WM8995_ANALOGUE_HP_1, reg);
 649
 650                 break;
 651         case SND_SOC_DAPM_PRE_PMD:
 652                 snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1,
 653                                     WM8995_HPOUT1L_OUTP_MASK |
 654                                     WM8995_HPOUT1R_OUTP_MASK |
 655                                     WM8995_HPOUT1L_RMV_SHORT_MASK |
 656                                     WM8995_HPOUT1R_RMV_SHORT_MASK, 0);
 657
 658                 snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1,
 659                                     WM8995_HPOUT1L_DLY_MASK |
 660                                     WM8995_HPOUT1R_DLY_MASK, 0);
 661
 662                 snd_soc_write(codec, WM8995_DC_SERVO_1, 0);
 663
 664                 snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 665                                     WM8995_HPOUT1L_ENA_MASK |
 666                                     WM8995_HPOUT1R_ENA_MASK,
 667                                     0);
 668                 break;
 669         }
 670
 671         return 0;
 672 }
 673
 674 static int configure_aif_clock(struct snd_soc_codec *codec, int aif)
 675 {
 676         struct wm8995_priv *wm8995;
 677         int rate;
 678         int reg1 = 0;
 679         int offset;
 680
 681         wm8995 = snd_soc_codec_get_drvdata(codec);
 682
 683         if (aif)
 684                 offset = 4;
 685         else
 686                 offset = 0;
 687
 688         switch (wm8995->sysclk[aif]) {
 689         case WM8995_SYSCLK_MCLK1:
 690                 rate = wm8995->mclk[0];
 691                 break;
 692         case WM8995_SYSCLK_MCLK2:
 693                 reg1 |= 0x8;
 694                 rate = wm8995->mclk[1];
 695                 break;
 696         case WM8995_SYSCLK_FLL1:
 697                 reg1 |= 0x10;
 698                 rate = wm8995->fll[0].out;
 699                 break;
 700         case WM8995_SYSCLK_FLL2:
 701                 reg1 |= 0x18;
 702                 rate = wm8995->fll[1].out;
 703                 break;
 704         default:
 705                 return -EINVAL;
 706         }
 707
 708         if (rate >= 13500000) {
 709                 rate /= 2;
 710                 reg1 |= WM8995_AIF1CLK_DIV;
 711
 712                 dev_dbg(codec->dev, "Dividing AIF%d clock to %dHz\n",
 713                         aif + 1, rate);
 714         }
 715
 716         wm8995->aifclk[aif] = rate;
 717
 718         snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1 + offset,
 719                             WM8995_AIF1CLK_SRC_MASK | WM8995_AIF1CLK_DIV_MASK,
 720                             reg1);
 721         return 0;
 722 }
 723
 724 static int configure_clock(struct snd_soc_codec *codec)
 725 {
 726         struct wm8995_priv *wm8995;
 727         int change, new;
 728
 729         wm8995 = snd_soc_codec_get_drvdata(codec);
 730
 731         /* Bring up the AIF clocks first */
 732         configure_aif_clock(codec, 0);
 733         configure_aif_clock(codec, 1);
 734
 735         /*
 736          * Then switch CLK_SYS over to the higher of them; a change
 737          * can only happen as a result of a clocking change which can
 738          * only be made outside of DAPM so we can safely redo the
 739          * clocking.
 740          */
 741
 742         /* If they're equal it doesn't matter which is used */
 743         if (wm8995->aifclk[0] == wm8995->aifclk[1])
 744                 return 0;
 745
 746         if (wm8995->aifclk[0] < wm8995->aifclk[1])
 747                 new = WM8995_SYSCLK_SRC;
 748         else
 749                 new = 0;
 750
 751         change = snd_soc_update_bits(codec, WM8995_CLOCKING_1,
 752                                      WM8995_SYSCLK_SRC_MASK, new);
 753         if (!change)
 754                 return 0;
 755
 756         snd_soc_dapm_sync(&codec->dapm);
 757
 758         return 0;
 759 }
 760
 761 static int clk_sys_event(struct snd_soc_dapm_widget *w,
 762                          struct snd_kcontrol *kcontrol, int event)
 763 {
 764         struct snd_soc_codec *codec;
 765
 766         codec = w->codec;
 767
 768         switch (event) {
 769         case SND_SOC_DAPM_PRE_PMU:
 770                 return configure_clock(codec);
 771
 772         case SND_SOC_DAPM_POST_PMD:
 773                 configure_clock(codec);
 774                 break;
 775         }
 776
 777         return 0;
 778 }
 779
 780 static const char *sidetone_text[] = {
 781         "ADC/DMIC1", "DMIC2",
 782 };
 783
 784 static SOC_ENUM_SINGLE_DECL(sidetone1_enum, WM8995_SIDETONE, 0, sidetone_text);
 785
 786 static const struct snd_kcontrol_new sidetone1_mux =
 787         SOC_DAPM_ENUM("Left Sidetone Mux", sidetone1_enum);
 788
 789 static SOC_ENUM_SINGLE_DECL(sidetone2_enum, WM8995_SIDETONE, 1, sidetone_text);
 790
 791 static const struct snd_kcontrol_new sidetone2_mux =
 792         SOC_DAPM_ENUM("Right Sidetone Mux", sidetone2_enum);
 793
 794 static const struct snd_kcontrol_new aif1adc1l_mix[] = {
 795         SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING,
 796                 1, 1, 0),
 797         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING,
 798                 0, 1, 0),
 799 };
 800
 801 static const struct snd_kcontrol_new aif1adc1r_mix[] = {
 802         SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING,
 803                 1, 1, 0),
 804         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING,
 805                 0, 1, 0),
 806 };
 807
 808 static const struct snd_kcontrol_new aif1adc2l_mix[] = {
 809         SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING,
 810                 1, 1, 0),
 811         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING,
 812                 0, 1, 0),
 813 };
 814
 815 static const struct snd_kcontrol_new aif1adc2r_mix[] = {
 816         SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING,
 817                 1, 1, 0),
 818         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING,
 819                 0, 1, 0),
 820 };
 821
 822 static const struct snd_kcontrol_new dac1l_mix[] = {
 823         WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 824                 5, 1, 0),
 825         WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 826                 4, 1, 0),
 827         WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 828                 2, 1, 0),
 829         WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 830                 1, 1, 0),
 831         WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 832                 0, 1, 0),
 833 };
 834
 835 static const struct snd_kcontrol_new dac1r_mix[] = {
 836         WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 837                 5, 1, 0),
 838         WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 839                 4, 1, 0),
 840         WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 841                 2, 1, 0),
 842         WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 843                 1, 1, 0),
 844         WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 845                 0, 1, 0),
 846 };
 847
 848 static const struct snd_kcontrol_new aif2dac2l_mix[] = {
 849         SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 850                 5, 1, 0),
 851         SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 852                 4, 1, 0),
 853         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 854                 2, 1, 0),
 855         SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 856                 1, 1, 0),
 857         SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 858                 0, 1, 0),
 859 };
 860
 861 static const struct snd_kcontrol_new aif2dac2r_mix[] = {
 862         SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 863                 5, 1, 0),
 864         SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 865                 4, 1, 0),
 866         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 867                 2, 1, 0),
 868         SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 869                 1, 1, 0),
 870         SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 871                 0, 1, 0),
 872 };
 873
 874 static const struct snd_kcontrol_new in1l_pga =
 875         SOC_DAPM_SINGLE("IN1L Switch", WM8995_POWER_MANAGEMENT_2, 5, 1, 0);
 876
 877 static const struct snd_kcontrol_new in1r_pga =
 878         SOC_DAPM_SINGLE("IN1R Switch", WM8995_POWER_MANAGEMENT_2, 4, 1, 0);
 879
 880 static const char *adc_mux_text[] = {
 881         "ADC",
 882         "DMIC",
 883 };
 884
 885 static SOC_ENUM_SINGLE_VIRT_DECL(adc_enum, adc_mux_text);
 886
 887 static const struct snd_kcontrol_new adcl_mux =
 888         SOC_DAPM_ENUM_VIRT("ADCL Mux", adc_enum);
 889
 890 static const struct snd_kcontrol_new adcr_mux =
 891         SOC_DAPM_ENUM_VIRT("ADCR Mux", adc_enum);
 892
 893 static const char *spk_src_text[] = {
 894         "DAC1L", "DAC1R", "DAC2L", "DAC2R"
 895 };
 896
 897 static SOC_ENUM_SINGLE_DECL(spk1l_src_enum, WM8995_LEFT_PDM_SPEAKER_1,
 898                             0, spk_src_text);
 899 static SOC_ENUM_SINGLE_DECL(spk1r_src_enum, WM8995_RIGHT_PDM_SPEAKER_1,
 900                             0, spk_src_text);
 901 static SOC_ENUM_SINGLE_DECL(spk2l_src_enum, WM8995_LEFT_PDM_SPEAKER_2,
 902                             0, spk_src_text);
 903 static SOC_ENUM_SINGLE_DECL(spk2r_src_enum, WM8995_RIGHT_PDM_SPEAKER_2,
 904                             0, spk_src_text);
 905
 906 static const struct snd_kcontrol_new spk1l_mux =
 907         SOC_DAPM_ENUM("SPK1L SRC", spk1l_src_enum);
 908 static const struct snd_kcontrol_new spk1r_mux =
 909         SOC_DAPM_ENUM("SPK1R SRC", spk1r_src_enum);
 910 static const struct snd_kcontrol_new spk2l_mux =
 911         SOC_DAPM_ENUM("SPK2L SRC", spk2l_src_enum);
 912 static const struct snd_kcontrol_new spk2r_mux =
 913         SOC_DAPM_ENUM("SPK2R SRC", spk2r_src_enum);
 914
 915 static const struct snd_soc_dapm_widget wm8995_dapm_widgets[] = {
 916         SND_SOC_DAPM_INPUT("DMIC1DAT"),
 917         SND_SOC_DAPM_INPUT("DMIC2DAT"),
 918
 919         SND_SOC_DAPM_INPUT("IN1L"),
 920         SND_SOC_DAPM_INPUT("IN1R"),
 921
 922         SND_SOC_DAPM_MIXER("IN1L PGA", SND_SOC_NOPM, 0, 0,
 923                 &in1l_pga, 1),
 924         SND_SOC_DAPM_MIXER("IN1R PGA", SND_SOC_NOPM, 0, 0,
 925                 &in1r_pga, 1),
 926
 927         SND_SOC_DAPM_SUPPLY("MICBIAS1", WM8995_POWER_MANAGEMENT_1, 8, 0,
 928                             NULL, 0),
 929         SND_SOC_DAPM_SUPPLY("MICBIAS2", WM8995_POWER_MANAGEMENT_1, 9, 0,
 930                             NULL, 0),
 931
 932         SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8995_AIF1_CLOCKING_1, 0, 0, NULL, 0),
 933         SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8995_AIF2_CLOCKING_1, 0, 0, NULL, 0),
 934         SND_SOC_DAPM_SUPPLY("DSP1CLK", WM8995_CLOCKING_1, 3, 0, NULL, 0),
 935         SND_SOC_DAPM_SUPPLY("DSP2CLK", WM8995_CLOCKING_1, 2, 0, NULL, 0),
 936         SND_SOC_DAPM_SUPPLY("SYSDSPCLK", WM8995_CLOCKING_1, 1, 0, NULL, 0),
 937         SND_SOC_DAPM_SUPPLY("CLK_SYS", SND_SOC_NOPM, 0, 0, clk_sys_event,
 938                 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 939
 940         SND_SOC_DAPM_AIF_OUT("AIF1ADC1L", "AIF1 Capture", 0,
 941                 WM8995_POWER_MANAGEMENT_3, 9, 0),
 942         SND_SOC_DAPM_AIF_OUT("AIF1ADC1R", "AIF1 Capture", 0,
 943                 WM8995_POWER_MANAGEMENT_3, 8, 0),
 944         SND_SOC_DAPM_AIF_OUT("AIF1ADCDAT", "AIF1 Capture", 0,
 945         SND_SOC_NOPM, 0, 0),
 946         SND_SOC_DAPM_AIF_OUT("AIF1ADC2L", "AIF1 Capture",
 947                 0, WM8995_POWER_MANAGEMENT_3, 11, 0),
 948         SND_SOC_DAPM_AIF_OUT("AIF1ADC2R", "AIF1 Capture",
 949                 0, WM8995_POWER_MANAGEMENT_3, 10, 0),
 950
 951         SND_SOC_DAPM_VIRT_MUX("ADCL Mux", SND_SOC_NOPM, 1, 0,
 952                 &adcl_mux),
 953         SND_SOC_DAPM_VIRT_MUX("ADCR Mux", SND_SOC_NOPM, 0, 0,
 954                 &adcr_mux),
 955
 956         SND_SOC_DAPM_ADC("DMIC2L", NULL, WM8995_POWER_MANAGEMENT_3, 5, 0),
 957         SND_SOC_DAPM_ADC("DMIC2R", NULL, WM8995_POWER_MANAGEMENT_3, 4, 0),
 958         SND_SOC_DAPM_ADC("DMIC1L", NULL, WM8995_POWER_MANAGEMENT_3, 3, 0),
 959         SND_SOC_DAPM_ADC("DMIC1R", NULL, WM8995_POWER_MANAGEMENT_3, 2, 0),
 960
 961         SND_SOC_DAPM_ADC("ADCL", NULL, WM8995_POWER_MANAGEMENT_3, 1, 0),
 962         SND_SOC_DAPM_ADC("ADCR", NULL, WM8995_POWER_MANAGEMENT_3, 0, 0),
 963
 964         SND_SOC_DAPM_MIXER("AIF1ADC1L Mixer", SND_SOC_NOPM, 0, 0,
 965                 aif1adc1l_mix, ARRAY_SIZE(aif1adc1l_mix)),
 966         SND_SOC_DAPM_MIXER("AIF1ADC1R Mixer", SND_SOC_NOPM, 0, 0,
 967                 aif1adc1r_mix, ARRAY_SIZE(aif1adc1r_mix)),
 968         SND_SOC_DAPM_MIXER("AIF1ADC2L Mixer", SND_SOC_NOPM, 0, 0,
 969                 aif1adc2l_mix, ARRAY_SIZE(aif1adc2l_mix)),
 970         SND_SOC_DAPM_MIXER("AIF1ADC2R Mixer", SND_SOC_NOPM, 0, 0,
 971                 aif1adc2r_mix, ARRAY_SIZE(aif1adc2r_mix)),
 972
 973         SND_SOC_DAPM_AIF_IN("AIF1DAC1L", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 974                 9, 0),
 975         SND_SOC_DAPM_AIF_IN("AIF1DAC1R", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 976                 8, 0),
 977         SND_SOC_DAPM_AIF_IN("AIF1DACDAT", "AIF1 Playback", 0, SND_SOC_NOPM,
 978                 0, 0),
 979
 980         SND_SOC_DAPM_AIF_IN("AIF1DAC2L", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 981                 11, 0),
 982         SND_SOC_DAPM_AIF_IN("AIF1DAC2R", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 983                 10, 0),
 984
 985         SND_SOC_DAPM_MIXER("AIF2DAC2L Mixer", SND_SOC_NOPM, 0, 0,
 986                 aif2dac2l_mix, ARRAY_SIZE(aif2dac2l_mix)),
 987         SND_SOC_DAPM_MIXER("AIF2DAC2R Mixer", SND_SOC_NOPM, 0, 0,
 988                 aif2dac2r_mix, ARRAY_SIZE(aif2dac2r_mix)),
 989
 990         SND_SOC_DAPM_DAC("DAC2L", NULL, WM8995_POWER_MANAGEMENT_4, 3, 0),
 991         SND_SOC_DAPM_DAC("DAC2R", NULL, WM8995_POWER_MANAGEMENT_4, 2, 0),
 992         SND_SOC_DAPM_DAC("DAC1L", NULL, WM8995_POWER_MANAGEMENT_4, 1, 0),
 993         SND_SOC_DAPM_DAC("DAC1R", NULL, WM8995_POWER_MANAGEMENT_4, 0, 0),
 994
 995         SND_SOC_DAPM_MIXER("DAC1L Mixer", SND_SOC_NOPM, 0, 0, dac1l_mix,
 996                 ARRAY_SIZE(dac1l_mix)),
 997         SND_SOC_DAPM_MIXER("DAC1R Mixer", SND_SOC_NOPM, 0, 0, dac1r_mix,
 998                 ARRAY_SIZE(dac1r_mix)),
 999
1000         SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &sidetone1_mux),
1001         SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &sidetone2_mux),
1002
1003         SND_SOC_DAPM_PGA_E("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
1004                 hp_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1005
1006         SND_SOC_DAPM_SUPPLY("Headphone Supply", SND_SOC_NOPM, 0, 0,
1007                 hp_supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1008
1009         SND_SOC_DAPM_MUX("SPK1L Driver", WM8995_LEFT_PDM_SPEAKER_1,
1010                 4, 0, &spk1l_mux),
1011         SND_SOC_DAPM_MUX("SPK1R Driver", WM8995_RIGHT_PDM_SPEAKER_1,
1012                 4, 0, &spk1r_mux),
1013         SND_SOC_DAPM_MUX("SPK2L Driver", WM8995_LEFT_PDM_SPEAKER_2,
1014                 4, 0, &spk2l_mux),
1015         SND_SOC_DAPM_MUX("SPK2R Driver", WM8995_RIGHT_PDM_SPEAKER_2,
1016                 4, 0, &spk2r_mux),
1017
1018         SND_SOC_DAPM_SUPPLY("LDO2", WM8995_POWER_MANAGEMENT_2, 1, 0, NULL, 0),
1019
1020         SND_SOC_DAPM_OUTPUT("HP1L"),
1021         SND_SOC_DAPM_OUTPUT("HP1R"),
1022         SND_SOC_DAPM_OUTPUT("SPK1L"),
1023         SND_SOC_DAPM_OUTPUT("SPK1R"),
1024         SND_SOC_DAPM_OUTPUT("SPK2L"),
1025         SND_SOC_DAPM_OUTPUT("SPK2R")
1026 };
1027
1028 static const struct snd_soc_dapm_route wm8995_intercon[] = {
1029         { "CLK_SYS", NULL, "AIF1CLK", check_clk_sys },
1030         { "CLK_SYS", NULL, "AIF2CLK", check_clk_sys },
1031
1032         { "DSP1CLK", NULL, "CLK_SYS" },
1033         { "DSP2CLK", NULL, "CLK_SYS" },
1034         { "SYSDSPCLK", NULL, "CLK_SYS" },
1035
1036         { "AIF1ADC1L", NULL, "AIF1CLK" },
1037         { "AIF1ADC1L", NULL, "DSP1CLK" },
1038         { "AIF1ADC1R", NULL, "AIF1CLK" },
1039         { "AIF1ADC1R", NULL, "DSP1CLK" },
1040         { "AIF1ADC1R", NULL, "SYSDSPCLK" },
1041
1042         { "AIF1ADC2L", NULL, "AIF1CLK" },
1043         { "AIF1ADC2L", NULL, "DSP1CLK" },
1044         { "AIF1ADC2R", NULL, "AIF1CLK" },
1045         { "AIF1ADC2R", NULL, "DSP1CLK" },
1046         { "AIF1ADC2R", NULL, "SYSDSPCLK" },
1047
1048         { "DMIC1L", NULL, "DMIC1DAT" },
1049         { "DMIC1L", NULL, "CLK_SYS" },
1050         { "DMIC1R", NULL, "DMIC1DAT" },
1051         { "DMIC1R", NULL, "CLK_SYS" },
1052         { "DMIC2L", NULL, "DMIC2DAT" },
1053         { "DMIC2L", NULL, "CLK_SYS" },
1054         { "DMIC2R", NULL, "DMIC2DAT" },
1055         { "DMIC2R", NULL, "CLK_SYS" },
1056
1057         { "ADCL", NULL, "AIF1CLK" },
1058         { "ADCL", NULL, "DSP1CLK" },
1059         { "ADCL", NULL, "SYSDSPCLK" },
1060
1061         { "ADCR", NULL, "AIF1CLK" },
1062         { "ADCR", NULL, "DSP1CLK" },
1063         { "ADCR", NULL, "SYSDSPCLK" },
1064
1065         { "IN1L PGA", "IN1L Switch", "IN1L" },
1066         { "IN1R PGA", "IN1R Switch", "IN1R" },
1067         { "IN1L PGA", NULL, "LDO2" },
1068         { "IN1R PGA", NULL, "LDO2" },
1069
1070         { "ADCL", NULL, "IN1L PGA" },
1071         { "ADCR", NULL, "IN1R PGA" },
1072
1073         { "ADCL Mux", "ADC", "ADCL" },
1074         { "ADCL Mux", "DMIC", "DMIC1L" },
1075         { "ADCR Mux", "ADC", "ADCR" },
1076         { "ADCR Mux", "DMIC", "DMIC1R" },
1077
1078         /* AIF1 outputs */
1079         { "AIF1ADC1L", NULL, "AIF1ADC1L Mixer" },
1080         { "AIF1ADC1L Mixer", "ADC/DMIC Switch", "ADCL Mux" },
1081
1082         { "AIF1ADC1R", NULL, "AIF1ADC1R Mixer" },
1083         { "AIF1ADC1R Mixer", "ADC/DMIC Switch", "ADCR Mux" },
1084
1085         { "AIF1ADC2L", NULL, "AIF1ADC2L Mixer" },
1086         { "AIF1ADC2L Mixer", "DMIC Switch", "DMIC2L" },
1087
1088         { "AIF1ADC2R", NULL, "AIF1ADC2R Mixer" },
1089         { "AIF1ADC2R Mixer", "DMIC Switch", "DMIC2R" },
1090
1091         /* Sidetone */
1092         { "Left Sidetone", "ADC/DMIC1", "AIF1ADC1L" },
1093         { "Left Sidetone", "DMIC2", "AIF1ADC2L" },
1094         { "Right Sidetone", "ADC/DMIC1", "AIF1ADC1R" },
1095         { "Right Sidetone", "DMIC2", "AIF1ADC2R" },
1096
1097         { "AIF1DAC1L", NULL, "AIF1CLK" },
1098         { "AIF1DAC1L", NULL, "DSP1CLK" },
1099         { "AIF1DAC1R", NULL, "AIF1CLK" },
1100         { "AIF1DAC1R", NULL, "DSP1CLK" },
1101         { "AIF1DAC1R", NULL, "SYSDSPCLK" },
1102
1103         { "AIF1DAC2L", NULL, "AIF1CLK" },
1104         { "AIF1DAC2L", NULL, "DSP1CLK" },
1105         { "AIF1DAC2R", NULL, "AIF1CLK" },
1106         { "AIF1DAC2R", NULL, "DSP1CLK" },
1107         { "AIF1DAC2R", NULL, "SYSDSPCLK" },
1108
1109         { "DAC1L", NULL, "AIF1CLK" },
1110         { "DAC1L", NULL, "DSP1CLK" },
1111         { "DAC1L", NULL, "SYSDSPCLK" },
1112
1113         { "DAC1R", NULL, "AIF1CLK" },
1114         { "DAC1R", NULL, "DSP1CLK" },
1115         { "DAC1R", NULL, "SYSDSPCLK" },
1116
1117         { "AIF1DAC1L", NULL, "AIF1DACDAT" },
1118         { "AIF1DAC1R", NULL, "AIF1DACDAT" },
1119         { "AIF1DAC2L", NULL, "AIF1DACDAT" },
1120         { "AIF1DAC2R", NULL, "AIF1DACDAT" },
1121
1122         /* DAC1 inputs */
1123         { "DAC1L", NULL, "DAC1L Mixer" },
1124         { "DAC1L Mixer", "AIF1.1 Switch", "AIF1DAC1L" },
1125         { "DAC1L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
1126         { "DAC1L Mixer", "Left Sidetone Switch", "Left Sidetone" },
1127         { "DAC1L Mixer", "Right Sidetone Switch", "Right Sidetone" },
1128
1129         { "DAC1R", NULL, "DAC1R Mixer" },
1130         { "DAC1R Mixer", "AIF1.1 Switch", "AIF1DAC1R" },
1131         { "DAC1R Mixer", "AIF1.2 Switch", "AIF1DAC2R" },
1132         { "DAC1R Mixer", "Left Sidetone Switch", "Left Sidetone" },
1133         { "DAC1R Mixer", "Right Sidetone Switch", "Right Sidetone" },
1134
1135         /* DAC2/AIF2 outputs */
1136         { "DAC2L", NULL, "AIF2DAC2L Mixer" },
1137         { "AIF2DAC2L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
1138         { "AIF2DAC2L Mixer", "AIF1.1 Switch", "AIF1DAC1L" },
1139
1140         { "DAC2R", NULL, "AIF2DAC2R Mixer" },
1141         { "AIF2DAC2R Mixer", "AIF1.2 Switch", "AIF1DAC2R" },
1142         { "AIF2DAC2R Mixer", "AIF1.1 Switch", "AIF1DAC1R" },
1143
1144         /* Output stages */
1145         { "Headphone PGA", NULL, "DAC1L" },
1146         { "Headphone PGA", NULL, "DAC1R" },
1147
1148         { "Headphone PGA", NULL, "DAC2L" },
1149         { "Headphone PGA", NULL, "DAC2R" },
1150
1151         { "Headphone PGA", NULL, "Headphone Supply" },
1152         { "Headphone PGA", NULL, "CLK_SYS" },
1153         { "Headphone PGA", NULL, "LDO2" },
1154
1155         { "HP1L", NULL, "Headphone PGA" },
1156         { "HP1R", NULL, "Headphone PGA" },
1157
1158         { "SPK1L Driver", "DAC1L", "DAC1L" },
1159         { "SPK1L Driver", "DAC1R", "DAC1R" },
1160         { "SPK1L Driver", "DAC2L", "DAC2L" },
1161         { "SPK1L Driver", "DAC2R", "DAC2R" },
1162         { "SPK1L Driver", NULL, "CLK_SYS" },
1163
1164         { "SPK1R Driver", "DAC1L", "DAC1L" },
1165         { "SPK1R Driver", "DAC1R", "DAC1R" },
1166         { "SPK1R Driver", "DAC2L", "DAC2L" },
1167         { "SPK1R Driver", "DAC2R", "DAC2R" },
1168         { "SPK1R Driver", NULL, "CLK_SYS" },
1169
1170         { "SPK2L Driver", "DAC1L", "DAC1L" },
1171         { "SPK2L Driver", "DAC1R", "DAC1R" },
1172         { "SPK2L Driver", "DAC2L", "DAC2L" },
1173         { "SPK2L Driver", "DAC2R", "DAC2R" },
1174         { "SPK2L Driver", NULL, "CLK_SYS" },
1175
1176         { "SPK2R Driver", "DAC1L", "DAC1L" },
1177         { "SPK2R Driver", "DAC1R", "DAC1R" },
1178         { "SPK2R Driver", "DAC2L", "DAC2L" },
1179         { "SPK2R Driver", "DAC2R", "DAC2R" },
1180         { "SPK2R Driver", NULL, "CLK_SYS" },
1181
1182         { "SPK1L", NULL, "SPK1L Driver" },
1183         { "SPK1R", NULL, "SPK1R Driver" },
1184         { "SPK2L", NULL, "SPK2L Driver" },
1185         { "SPK2R", NULL, "SPK2R Driver" }
1186 };
1187
1188 static bool wm8995_readable(struct device *dev, unsigned int reg)
1189 {
1190         switch (reg) {
1191         case WM8995_SOFTWARE_RESET:
1192         case WM8995_POWER_MANAGEMENT_1:
1193         case WM8995_POWER_MANAGEMENT_2:
1194         case WM8995_POWER_MANAGEMENT_3:
1195         case WM8995_POWER_MANAGEMENT_4:
1196         case WM8995_POWER_MANAGEMENT_5:
1197         case WM8995_LEFT_LINE_INPUT_1_VOLUME:
1198         case WM8995_RIGHT_LINE_INPUT_1_VOLUME:
1199         case WM8995_LEFT_LINE_INPUT_CONTROL:
1200         case WM8995_DAC1_LEFT_VOLUME:
1201         case WM8995_DAC1_RIGHT_VOLUME:
1202         case WM8995_DAC2_LEFT_VOLUME:
1203         case WM8995_DAC2_RIGHT_VOLUME:
1204         case WM8995_OUTPUT_VOLUME_ZC_1:
1205         case WM8995_MICBIAS_1:
1206         case WM8995_MICBIAS_2:
1207         case WM8995_LDO_1:
1208         case WM8995_LDO_2:
1209         case WM8995_ACCESSORY_DETECT_MODE1:
1210         case WM8995_ACCESSORY_DETECT_MODE2:
1211         case WM8995_HEADPHONE_DETECT1:
1212         case WM8995_HEADPHONE_DETECT2:
1213         case WM8995_MIC_DETECT_1:
1214         case WM8995_MIC_DETECT_2:
1215         case WM8995_CHARGE_PUMP_1:
1216         case WM8995_CLASS_W_1:
1217         case WM8995_DC_SERVO_1:
1218         case WM8995_DC_SERVO_2:
1219         case WM8995_DC_SERVO_3:
1220         case WM8995_DC_SERVO_5:
1221         case WM8995_DC_SERVO_6:
1222         case WM8995_DC_SERVO_7:
1223         case WM8995_DC_SERVO_READBACK_0:
1224         case WM8995_ANALOGUE_HP_1:
1225         case WM8995_ANALOGUE_HP_2:
1226         case WM8995_CHIP_REVISION:
1227         case WM8995_CONTROL_INTERFACE_1:
1228         case WM8995_CONTROL_INTERFACE_2:
1229         case WM8995_WRITE_SEQUENCER_CTRL_1:
1230         case WM8995_WRITE_SEQUENCER_CTRL_2:
1231         case WM8995_AIF1_CLOCKING_1:
1232         case WM8995_AIF1_CLOCKING_2:
1233         case WM8995_AIF2_CLOCKING_1:
1234         case WM8995_AIF2_CLOCKING_2:
1235         case WM8995_CLOCKING_1:
1236         case WM8995_CLOCKING_2:
1237         case WM8995_AIF1_RATE:
1238         case WM8995_AIF2_RATE:
1239         case WM8995_RATE_STATUS:
1240         case WM8995_FLL1_CONTROL_1:
1241         case WM8995_FLL1_CONTROL_2:
1242         case WM8995_FLL1_CONTROL_3:
1243         case WM8995_FLL1_CONTROL_4:
1244         case WM8995_FLL1_CONTROL_5:
1245         case WM8995_FLL2_CONTROL_1:
1246         case WM8995_FLL2_CONTROL_2:
1247         case WM8995_FLL2_CONTROL_3:
1248         case WM8995_FLL2_CONTROL_4:
1249         case WM8995_FLL2_CONTROL_5:
1250         case WM8995_AIF1_CONTROL_1:
1251         case WM8995_AIF1_CONTROL_2:
1252         case WM8995_AIF1_MASTER_SLAVE:
1253         case WM8995_AIF1_BCLK:
1254         case WM8995_AIF1ADC_LRCLK:
1255         case WM8995_AIF1DAC_LRCLK:
1256         case WM8995_AIF1DAC_DATA:
1257         case WM8995_AIF1ADC_DATA:
1258         case WM8995_AIF2_CONTROL_1:
1259         case WM8995_AIF2_CONTROL_2:
1260         case WM8995_AIF2_MASTER_SLAVE:
1261         case WM8995_AIF2_BCLK:
1262         case WM8995_AIF2ADC_LRCLK:
1263         case WM8995_AIF2DAC_LRCLK:
1264         case WM8995_AIF2DAC_DATA:
1265         case WM8995_AIF2ADC_DATA:
1266         case WM8995_AIF1_ADC1_LEFT_VOLUME:
1267         case WM8995_AIF1_ADC1_RIGHT_VOLUME:
1268         case WM8995_AIF1_DAC1_LEFT_VOLUME:
1269         case WM8995_AIF1_DAC1_RIGHT_VOLUME:
1270         case WM8995_AIF1_ADC2_LEFT_VOLUME:
1271         case WM8995_AIF1_ADC2_RIGHT_VOLUME:
1272         case WM8995_AIF1_DAC2_LEFT_VOLUME:
1273         case WM8995_AIF1_DAC2_RIGHT_VOLUME:
1274         case WM8995_AIF1_ADC1_FILTERS:
1275         case WM8995_AIF1_ADC2_FILTERS:
1276         case WM8995_AIF1_DAC1_FILTERS_1:
1277         case WM8995_AIF1_DAC1_FILTERS_2:
1278         case WM8995_AIF1_DAC2_FILTERS_1:
1279         case WM8995_AIF1_DAC2_FILTERS_2:
1280         case WM8995_AIF1_DRC1_1:
1281         case WM8995_AIF1_DRC1_2:
1282         case WM8995_AIF1_DRC1_3:
1283         case WM8995_AIF1_DRC1_4:
1284         case WM8995_AIF1_DRC1_5:
1285         case WM8995_AIF1_DRC2_1:
1286         case WM8995_AIF1_DRC2_2:
1287         case WM8995_AIF1_DRC2_3:
1288         case WM8995_AIF1_DRC2_4:
1289         case WM8995_AIF1_DRC2_5:
1290         case WM8995_AIF1_DAC1_EQ_GAINS_1:
1291         case WM8995_AIF1_DAC1_EQ_GAINS_2:
1292         case WM8995_AIF1_DAC1_EQ_BAND_1_A:
1293         case WM8995_AIF1_DAC1_EQ_BAND_1_B:
1294         case WM8995_AIF1_DAC1_EQ_BAND_1_PG:
1295         case WM8995_AIF1_DAC1_EQ_BAND_2_A:
1296         case WM8995_AIF1_DAC1_EQ_BAND_2_B:
1297         case WM8995_AIF1_DAC1_EQ_BAND_2_C:
1298         case WM8995_AIF1_DAC1_EQ_BAND_2_PG:
1299         case WM8995_AIF1_DAC1_EQ_BAND_3_A:
1300         case WM8995_AIF1_DAC1_EQ_BAND_3_B:
1301         case WM8995_AIF1_DAC1_EQ_BAND_3_C:
1302         case WM8995_AIF1_DAC1_EQ_BAND_3_PG:
1303         case WM8995_AIF1_DAC1_EQ_BAND_4_A:
1304         case WM8995_AIF1_DAC1_EQ_BAND_4_B:
1305         case WM8995_AIF1_DAC1_EQ_BAND_4_C:
1306         case WM8995_AIF1_DAC1_EQ_BAND_4_PG:
1307         case WM8995_AIF1_DAC1_EQ_BAND_5_A:
1308         case WM8995_AIF1_DAC1_EQ_BAND_5_B:
1309         case WM8995_AIF1_DAC1_EQ_BAND_5_PG:
1310         case WM8995_AIF1_DAC2_EQ_GAINS_1:
1311         case WM8995_AIF1_DAC2_EQ_GAINS_2:
1312         case WM8995_AIF1_DAC2_EQ_BAND_1_A:
1313         case WM8995_AIF1_DAC2_EQ_BAND_1_B:
1314         case WM8995_AIF1_DAC2_EQ_BAND_1_PG:
1315         case WM8995_AIF1_DAC2_EQ_BAND_2_A:
1316         case WM8995_AIF1_DAC2_EQ_BAND_2_B:
1317         case WM8995_AIF1_DAC2_EQ_BAND_2_C:
1318         case WM8995_AIF1_DAC2_EQ_BAND_2_PG:
1319         case WM8995_AIF1_DAC2_EQ_BAND_3_A:
1320         case WM8995_AIF1_DAC2_EQ_BAND_3_B:
1321         case WM8995_AIF1_DAC2_EQ_BAND_3_C:
1322         case WM8995_AIF1_DAC2_EQ_BAND_3_PG:
1323         case WM8995_AIF1_DAC2_EQ_BAND_4_A:
1324         case WM8995_AIF1_DAC2_EQ_BAND_4_B:
1325         case WM8995_AIF1_DAC2_EQ_BAND_4_C:
1326         case WM8995_AIF1_DAC2_EQ_BAND_4_PG:
1327         case WM8995_AIF1_DAC2_EQ_BAND_5_A:
1328         case WM8995_AIF1_DAC2_EQ_BAND_5_B:
1329         case WM8995_AIF1_DAC2_EQ_BAND_5_PG:
1330         case WM8995_AIF2_ADC_LEFT_VOLUME:
1331         case WM8995_AIF2_ADC_RIGHT_VOLUME:
1332         case WM8995_AIF2_DAC_LEFT_VOLUME:
1333         case WM8995_AIF2_DAC_RIGHT_VOLUME:
1334         case WM8995_AIF2_ADC_FILTERS:
1335         case WM8995_AIF2_DAC_FILTERS_1:
1336         case WM8995_AIF2_DAC_FILTERS_2:
1337         case WM8995_AIF2_DRC_1:
1338         case WM8995_AIF2_DRC_2:
1339         case WM8995_AIF2_DRC_3:
1340         case WM8995_AIF2_DRC_4:
1341         case WM8995_AIF2_DRC_5:
1342         case WM8995_AIF2_EQ_GAINS_1:
1343         case WM8995_AIF2_EQ_GAINS_2:
1344         case WM8995_AIF2_EQ_BAND_1_A:
1345         case WM8995_AIF2_EQ_BAND_1_B:
1346         case WM8995_AIF2_EQ_BAND_1_PG:
1347         case WM8995_AIF2_EQ_BAND_2_A:
1348         case WM8995_AIF2_EQ_BAND_2_B:
1349         case WM8995_AIF2_EQ_BAND_2_C:
1350         case WM8995_AIF2_EQ_BAND_2_PG:
1351         case WM8995_AIF2_EQ_BAND_3_A:
1352         case WM8995_AIF2_EQ_BAND_3_B:
1353         case WM8995_AIF2_EQ_BAND_3_C:
1354         case WM8995_AIF2_EQ_BAND_3_PG:
1355         case WM8995_AIF2_EQ_BAND_4_A:
1356         case WM8995_AIF2_EQ_BAND_4_B:
1357         case WM8995_AIF2_EQ_BAND_4_C:
1358         case WM8995_AIF2_EQ_BAND_4_PG:
1359         case WM8995_AIF2_EQ_BAND_5_A:
1360         case WM8995_AIF2_EQ_BAND_5_B:
1361         case WM8995_AIF2_EQ_BAND_5_PG:
1362         case WM8995_DAC1_MIXER_VOLUMES:
1363         case WM8995_DAC1_LEFT_MIXER_ROUTING:
1364         case WM8995_DAC1_RIGHT_MIXER_ROUTING:
1365         case WM8995_DAC2_MIXER_VOLUMES:
1366         case WM8995_DAC2_LEFT_MIXER_ROUTING:
1367         case WM8995_DAC2_RIGHT_MIXER_ROUTING:
1368         case WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING:
1369         case WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING:
1370         case WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING:
1371         case WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING:
1372         case WM8995_DAC_SOFTMUTE:
1373         case WM8995_OVERSAMPLING:
1374         case WM8995_SIDETONE:
1375         case WM8995_GPIO_1:
1376         case WM8995_GPIO_2:
1377         case WM8995_GPIO_3:
1378         case WM8995_GPIO_4:
1379         case WM8995_GPIO_5:
1380         case WM8995_GPIO_6:
1381         case WM8995_GPIO_7:
1382         case WM8995_GPIO_8:
1383         case WM8995_GPIO_9:
1384         case WM8995_GPIO_10:
1385         case WM8995_GPIO_11:
1386         case WM8995_GPIO_12:
1387         case WM8995_GPIO_13:
1388         case WM8995_GPIO_14:
1389         case WM8995_PULL_CONTROL_1:
1390         case WM8995_PULL_CONTROL_2:
1391         case WM8995_INTERRUPT_STATUS_1:
1392         case WM8995_INTERRUPT_STATUS_2:
1393         case WM8995_INTERRUPT_RAW_STATUS_2:
1394         case WM8995_INTERRUPT_STATUS_1_MASK:
1395         case WM8995_INTERRUPT_STATUS_2_MASK:
1396         case WM8995_INTERRUPT_CONTROL:
1397         case WM8995_LEFT_PDM_SPEAKER_1:
1398         case WM8995_RIGHT_PDM_SPEAKER_1:
1399         case WM8995_PDM_SPEAKER_1_MUTE_SEQUENCE:
1400         case WM8995_LEFT_PDM_SPEAKER_2:
1401         case WM8995_RIGHT_PDM_SPEAKER_2:
1402         case WM8995_PDM_SPEAKER_2_MUTE_SEQUENCE:
1403                 return true;
1404         default:
1405                 return false;
1406         }
1407 }
1408
1409 static bool wm8995_volatile(struct device *dev, unsigned int reg)
1410 {
1411         switch (reg) {
1412         case WM8995_SOFTWARE_RESET:
1413         case WM8995_DC_SERVO_READBACK_0:
1414         case WM8995_INTERRUPT_STATUS_1:
1415         case WM8995_INTERRUPT_STATUS_2:
1416         case WM8995_INTERRUPT_CONTROL:
1417         case WM8995_ACCESSORY_DETECT_MODE1:
1418         case WM8995_ACCESSORY_DETECT_MODE2:
1419         case WM8995_HEADPHONE_DETECT1:
1420         case WM8995_HEADPHONE_DETECT2:
1421         case WM8995_RATE_STATUS:
1422                 return true;
1423         default:
1424                 return false;
1425         }
1426 }
1427
1428 static int wm8995_aif_mute(struct snd_soc_dai *dai, int mute)
1429 {
1430         struct snd_soc_codec *codec = dai->codec;
1431         int mute_reg;
1432
1433         switch (dai->id) {
1434         case 0:
1435                 mute_reg = WM8995_AIF1_DAC1_FILTERS_1;
1436                 break;
1437         case 1:
1438                 mute_reg = WM8995_AIF2_DAC_FILTERS_1;
1439                 break;
1440         default:
1441                 return -EINVAL;
1442         }
1443
1444         snd_soc_update_bits(codec, mute_reg, WM8995_AIF1DAC1_MUTE_MASK,
1445                             !!mute << WM8995_AIF1DAC1_MUTE_SHIFT);
1446         return 0;
1447 }
1448
1449 static int wm8995_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1450 {
1451         struct snd_soc_codec *codec;
1452         int master;
1453         int aif;
1454
1455         codec = dai->codec;
1456
1457         master = 0;
1458         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1459         case SND_SOC_DAIFMT_CBS_CFS:
1460                 break;
1461         case SND_SOC_DAIFMT_CBM_CFM:
1462                 master = WM8995_AIF1_MSTR;
1463                 break;
1464         default:
1465                 dev_err(dai->dev, "Unknown master/slave configuration\n");
1466                 return -EINVAL;
1467         }
1468
1469         aif = 0;
1470         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1471         case SND_SOC_DAIFMT_DSP_B:
1472                 aif |= WM8995_AIF1_LRCLK_INV;
1473         case SND_SOC_DAIFMT_DSP_A:
1474                 aif |= (0x3 << WM8995_AIF1_FMT_SHIFT);
1475                 break;
1476         case SND_SOC_DAIFMT_I2S:
1477                 aif |= (0x2 << WM8995_AIF1_FMT_SHIFT);
1478                 break;
1479         case SND_SOC_DAIFMT_RIGHT_J:
1480                 break;
1481         case SND_SOC_DAIFMT_LEFT_J:
1482                 aif |= (0x1 << WM8995_AIF1_FMT_SHIFT);
1483                 break;
1484         default:
1485                 dev_err(dai->dev, "Unknown dai format\n");
1486                 return -EINVAL;
1487         }
1488
1489         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1490         case SND_SOC_DAIFMT_DSP_A:
1491         case SND_SOC_DAIFMT_DSP_B:
1492                 /* frame inversion not valid for DSP modes */
1493                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1494                 case SND_SOC_DAIFMT_NB_NF:
1495                         break;
1496                 case SND_SOC_DAIFMT_IB_NF:
1497                         aif |= WM8995_AIF1_BCLK_INV;
1498                         break;
1499                 default:
1500                         return -EINVAL;
1501                 }
1502                 break;
1503
1504         case SND_SOC_DAIFMT_I2S:
1505         case SND_SOC_DAIFMT_RIGHT_J:
1506         case SND_SOC_DAIFMT_LEFT_J:
1507                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1508                 case SND_SOC_DAIFMT_NB_NF:
1509                         break;
1510                 case SND_SOC_DAIFMT_IB_IF:
1511                         aif |= WM8995_AIF1_BCLK_INV | WM8995_AIF1_LRCLK_INV;
1512                         break;
1513                 case SND_SOC_DAIFMT_IB_NF:
1514                         aif |= WM8995_AIF1_BCLK_INV;
1515                         break;
1516                 case SND_SOC_DAIFMT_NB_IF:
1517                         aif |= WM8995_AIF1_LRCLK_INV;
1518                         break;
1519                 default:
1520                         return -EINVAL;
1521                 }
1522                 break;
1523         default:
1524                 return -EINVAL;
1525         }
1526
1527         snd_soc_update_bits(codec, WM8995_AIF1_CONTROL_1,
1528                             WM8995_AIF1_BCLK_INV_MASK |
1529                             WM8995_AIF1_LRCLK_INV_MASK |
1530                             WM8995_AIF1_FMT_MASK, aif);
1531         snd_soc_update_bits(codec, WM8995_AIF1_MASTER_SLAVE,
1532                             WM8995_AIF1_MSTR_MASK, master);
1533         return 0;
1534 }
1535
1536 static const int srs[] = {
1537         8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100,
1538         48000, 88200, 96000
1539 };
1540
1541 static const int fs_ratios[] = {
1542         -1 /* reserved */,
1543         128, 192, 256, 384, 512, 768, 1024, 1408, 1536
1544 };
1545
1546 static const int bclk_divs[] = {
1547         10, 15, 20, 30, 40, 55, 60, 80, 110, 120, 160, 220, 240, 320, 440, 480
1548 };
1549
1550 static int wm8995_hw_params(struct snd_pcm_substream *substream,
1551                             struct snd_pcm_hw_params *params,
1552                             struct snd_soc_dai *dai)
1553 {
1554         struct snd_soc_codec *codec;
1555         struct wm8995_priv *wm8995;
1556         int aif1_reg;
1557         int bclk_reg;
1558         int lrclk_reg;
1559         int rate_reg;
1560         int bclk_rate;
1561         int aif1;
1562         int lrclk, bclk;
1563         int i, rate_val, best, best_val, cur_val;
1564
1565         codec = dai->codec;
1566         wm8995 = snd_soc_codec_get_drvdata(codec);
1567
1568         switch (dai->id) {
1569         case 0:
1570                 aif1_reg = WM8995_AIF1_CONTROL_1;
1571                 bclk_reg = WM8995_AIF1_BCLK;
1572                 rate_reg = WM8995_AIF1_RATE;
1573                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* ||
1574                         wm8995->lrclk_shared[0] */) {
1575                         lrclk_reg = WM8995_AIF1DAC_LRCLK;
1576                 } else {
1577                         lrclk_reg = WM8995_AIF1ADC_LRCLK;
1578                         dev_dbg(codec->dev, "AIF1 using split LRCLK\n");
1579                 }
1580                 break;
1581         case 1:
1582                 aif1_reg = WM8995_AIF2_CONTROL_1;
1583                 bclk_reg = WM8995_AIF2_BCLK;
1584                 rate_reg = WM8995_AIF2_RATE;
1585                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* ||
1586                     wm8995->lrclk_shared[1] */) {
1587                         lrclk_reg = WM8995_AIF2DAC_LRCLK;
1588                 } else {
1589                         lrclk_reg = WM8995_AIF2ADC_LRCLK;
1590                         dev_dbg(codec->dev, "AIF2 using split LRCLK\n");
1591                 }
1592                 break;
1593         default:
1594                 return -EINVAL;
1595         }
1596
1597         bclk_rate = snd_soc_params_to_bclk(params);
1598         if (bclk_rate < 0)
1599                 return bclk_rate;
1600
1601         aif1 = 0;
1602         switch (params_format(params)) {
1603         case SNDRV_PCM_FORMAT_S16_LE:
1604                 break;
1605         case SNDRV_PCM_FORMAT_S20_3LE:
1606                 aif1 |= (0x1 << WM8995_AIF1_WL_SHIFT);
1607                 break;
1608         case SNDRV_PCM_FORMAT_S24_LE:
1609                 aif1 |= (0x2 << WM8995_AIF1_WL_SHIFT);
1610                 break;
1611         case SNDRV_PCM_FORMAT_S32_LE:
1612                 aif1 |= (0x3 << WM8995_AIF1_WL_SHIFT);
1613                 break;
1614         default:
1615                 dev_err(dai->dev, "Unsupported word length %u\n",
1616                         params_format(params));
1617                 return -EINVAL;
1618         }
1619
1620         /* try to find a suitable sample rate */
1621         for (i = 0; i < ARRAY_SIZE(srs); ++i)
1622                 if (srs[i] == params_rate(params))
1623                         break;
1624         if (i == ARRAY_SIZE(srs)) {
1625                 dev_err(dai->dev, "Sample rate %d is not supported\n",
1626                         params_rate(params));
1627                 return -EINVAL;
1628         }
1629         rate_val = i << WM8995_AIF1_SR_SHIFT;
1630
1631         dev_dbg(dai->dev, "Sample rate is %dHz\n", srs[i]);
1632         dev_dbg(dai->dev, "AIF%dCLK is %dHz, target BCLK %dHz\n",
1633                 dai->id + 1, wm8995->aifclk[dai->id], bclk_rate);
1634
1635         /* AIFCLK/fs ratio; look for a close match in either direction */
1636         best = 1;
1637         best_val = abs((fs_ratios[1] * params_rate(params))
1638                        - wm8995->aifclk[dai->id]);
1639         for (i = 2; i < ARRAY_SIZE(fs_ratios); i++) {
1640                 cur_val = abs((fs_ratios[i] * params_rate(params))
1641                               - wm8995->aifclk[dai->id]);
1642                 if (cur_val >= best_val)
1643                         continue;
1644                 best = i;
1645                 best_val = cur_val;
1646         }
1647         rate_val |= best;
1648
1649         dev_dbg(dai->dev, "Selected AIF%dCLK/fs = %d\n",
1650                 dai->id + 1, fs_ratios[best]);
1651
1652         /*
1653          * We may not get quite the right frequency if using
1654          * approximate clocks so look for the closest match that is
1655          * higher than the target (we need to ensure that there enough
1656          * BCLKs to clock out the samples).
1657          */
1658         best = 0;
1659         bclk = 0;
1660         for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
1661                 cur_val = (wm8995->aifclk[dai->id] * 10 / bclk_divs[i]) - bclk_rate;
1662                 if (cur_val < 0) /* BCLK table is sorted */
1663                         break;
1664                 best = i;
1665         }
1666         bclk |= best << WM8995_AIF1_BCLK_DIV_SHIFT;
1667
1668         bclk_rate = wm8995->aifclk[dai->id] * 10 / bclk_divs[best];
1669         dev_dbg(dai->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n",
1670                 bclk_divs[best], bclk_rate);
1671
1672         lrclk = bclk_rate / params_rate(params);
1673         dev_dbg(dai->dev, "Using LRCLK rate %d for actual LRCLK %dHz\n",
1674                 lrclk, bclk_rate / lrclk);
1675
1676         snd_soc_update_bits(codec, aif1_reg,
1677                             WM8995_AIF1_WL_MASK, aif1);
1678         snd_soc_update_bits(codec, bclk_reg,
1679                             WM8995_AIF1_BCLK_DIV_MASK, bclk);
1680         snd_soc_update_bits(codec, lrclk_reg,
1681                             WM8995_AIF1DAC_RATE_MASK, lrclk);
1682         snd_soc_update_bits(codec, rate_reg,
1683                             WM8995_AIF1_SR_MASK |
1684                             WM8995_AIF1CLK_RATE_MASK, rate_val);
1685         return 0;
1686 }
1687
1688 static int wm8995_set_tristate(struct snd_soc_dai *codec_dai, int tristate)
1689 {
1690         struct snd_soc_codec *codec = codec_dai->codec;
1691         int reg, val, mask;
1692
1693         switch (codec_dai->id) {
1694         case 0:
1695                 reg = WM8995_AIF1_MASTER_SLAVE;
1696                 mask = WM8995_AIF1_TRI;
1697                 break;
1698         case 1:
1699                 reg = WM8995_AIF2_MASTER_SLAVE;
1700                 mask = WM8995_AIF2_TRI;
1701                 break;
1702         case 2:
1703                 reg = WM8995_POWER_MANAGEMENT_5;
1704                 mask = WM8995_AIF3_TRI;
1705                 break;
1706         default:
1707                 return -EINVAL;
1708         }
1709
1710         if (tristate)
1711                 val = mask;
1712         else
1713                 val = 0;
1714
1715         return snd_soc_update_bits(codec, reg, mask, val);
1716 }
1717
1718 /* The size in bits of the FLL divide multiplied by 10
1719  * to allow rounding later */
1720 #define FIXED_FLL_SIZE ((1 << 16) * 10)
1721
1722 struct fll_div {
1723         u16 outdiv;
1724         u16 n;
1725         u16 k;
1726         u16 clk_ref_div;
1727         u16 fll_fratio;
1728 };
1729
1730 static int wm8995_get_fll_config(struct fll_div *fll,
1731                                  int freq_in, int freq_out)
1732 {
1733         u64 Kpart;
1734         unsigned int K, Ndiv, Nmod;
1735
1736         pr_debug("FLL input=%dHz, output=%dHz\n", freq_in, freq_out);
1737
1738         /* Scale the input frequency down to <= 13.5MHz */
1739         fll->clk_ref_div = 0;
1740         while (freq_in > 13500000) {
1741                 fll->clk_ref_div++;
1742                 freq_in /= 2;
1743
1744                 if (fll->clk_ref_div > 3)
1745                         return -EINVAL;
1746         }
1747         pr_debug("CLK_REF_DIV=%d, Fref=%dHz\n", fll->clk_ref_div, freq_in);
1748
1749         /* Scale the output to give 90MHz<=Fvco<=100MHz */
1750         fll->outdiv = 3;
1751         while (freq_out * (fll->outdiv + 1) < 90000000) {
1752                 fll->outdiv++;
1753                 if (fll->outdiv > 63)
1754                         return -EINVAL;
1755         }
1756         freq_out *= fll->outdiv + 1;
1757         pr_debug("OUTDIV=%d, Fvco=%dHz\n", fll->outdiv, freq_out);
1758
1759         if (freq_in > 1000000) {
1760                 fll->fll_fratio = 0;
1761         } else if (freq_in > 256000) {
1762                 fll->fll_fratio = 1;
1763                 freq_in *= 2;
1764         } else if (freq_in > 128000) {
1765                 fll->fll_fratio = 2;
1766                 freq_in *= 4;
1767         } else if (freq_in > 64000) {
1768                 fll->fll_fratio = 3;
1769                 freq_in *= 8;
1770         } else {
1771                 fll->fll_fratio = 4;
1772                 freq_in *= 16;
1773         }
1774         pr_debug("FLL_FRATIO=%d, Fref=%dHz\n", fll->fll_fratio, freq_in);
1775
1776         /* Now, calculate N.K */
1777         Ndiv = freq_out / freq_in;
1778
1779         fll->n = Ndiv;
1780         Nmod = freq_out % freq_in;
1781         pr_debug("Nmod=%d\n", Nmod);
1782
1783         /* Calculate fractional part - scale up so we can round. */
1784         Kpart = FIXED_FLL_SIZE * (long long)Nmod;
1785
1786         do_div(Kpart, freq_in);
1787
1788         K = Kpart & 0xFFFFFFFF;
1789
1790         if ((K % 10) >= 5)
1791                 K += 5;
1792
1793         /* Move down to proper range now rounding is done */
1794         fll->k = K / 10;
1795
1796         pr_debug("N=%x K=%x\n", fll->n, fll->k);
1797
1798         return 0;
1799 }
1800
1801 static int wm8995_set_fll(struct snd_soc_dai *dai, int id,
1802                           int src, unsigned int freq_in,
1803                           unsigned int freq_out)
1804 {
1805         struct snd_soc_codec *codec;
1806         struct wm8995_priv *wm8995;
1807         int reg_offset, ret;
1808         struct fll_div fll;
1809         u16 reg, aif1, aif2;
1810
1811         codec = dai->codec;
1812         wm8995 = snd_soc_codec_get_drvdata(codec);
1813
1814         aif1 = snd_soc_read(codec, WM8995_AIF1_CLOCKING_1)
1815                & WM8995_AIF1CLK_ENA;
1816
1817         aif2 = snd_soc_read(codec, WM8995_AIF2_CLOCKING_1)
1818                & WM8995_AIF2CLK_ENA;
1819
1820         switch (id) {
1821         case WM8995_FLL1:
1822                 reg_offset = 0;
1823                 id = 0;
1824                 break;
1825         case WM8995_FLL2:
1826                 reg_offset = 0x20;
1827                 id = 1;
1828                 break;
1829         default:
1830                 return -EINVAL;
1831         }
1832
1833         switch (src) {
1834         case 0:
1835                 /* Allow no source specification when stopping */
1836                 if (freq_out)
1837                         return -EINVAL;
1838                 break;
1839         case WM8995_FLL_SRC_MCLK1:
1840         case WM8995_FLL_SRC_MCLK2:
1841         case WM8995_FLL_SRC_LRCLK:
1842         case WM8995_FLL_SRC_BCLK:
1843                 break;
1844         default:
1845                 return -EINVAL;
1846         }
1847
1848         /* Are we changing anything? */
1849         if (wm8995->fll[id].src == src &&
1850             wm8995->fll[id].in == freq_in && wm8995->fll[id].out == freq_out)
1851                 return 0;
1852
1853         /* If we're stopping the FLL redo the old config - no
1854          * registers will actually be written but we avoid GCC flow
1855          * analysis bugs spewing warnings.
1856          */
1857         if (freq_out)
1858                 ret = wm8995_get_fll_config(&fll, freq_in, freq_out);
1859         else
1860                 ret = wm8995_get_fll_config(&fll, wm8995->fll[id].in,
1861                                             wm8995->fll[id].out);
1862         if (ret < 0)
1863                 return ret;
1864
1865         /* Gate the AIF clocks while we reclock */
1866         snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1,
1867                             WM8995_AIF1CLK_ENA_MASK, 0);
1868         snd_soc_update_bits(codec, WM8995_AIF2_CLOCKING_1,
1869                             WM8995_AIF2CLK_ENA_MASK, 0);
1870
1871         /* We always need to disable the FLL while reconfiguring */
1872         snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_1 + reg_offset,
1873                             WM8995_FLL1_ENA_MASK, 0);
1874
1875         reg = (fll.outdiv << WM8995_FLL1_OUTDIV_SHIFT) |
1876               (fll.fll_fratio << WM8995_FLL1_FRATIO_SHIFT);
1877         snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_2 + reg_offset,
1878                             WM8995_FLL1_OUTDIV_MASK |
1879                             WM8995_FLL1_FRATIO_MASK, reg);
1880
1881         snd_soc_write(codec, WM8995_FLL1_CONTROL_3 + reg_offset, fll.k);
1882
1883         snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_4 + reg_offset,
1884                             WM8995_FLL1_N_MASK,
1885                             fll.n << WM8995_FLL1_N_SHIFT);
1886
1887         snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_5 + reg_offset,
1888                             WM8995_FLL1_REFCLK_DIV_MASK |
1889                             WM8995_FLL1_REFCLK_SRC_MASK,
1890                             (fll.clk_ref_div << WM8995_FLL1_REFCLK_DIV_SHIFT) |
1891                             (src - 1));
1892
1893         if (freq_out)
1894                 snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_1 + reg_offset,
1895                                     WM8995_FLL1_ENA_MASK, WM8995_FLL1_ENA);
1896
1897         wm8995->fll[id].in = freq_in;
1898         wm8995->fll[id].out = freq_out;
1899         wm8995->fll[id].src = src;
1900
1901         /* Enable any gated AIF clocks */
1902         snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1,
1903                             WM8995_AIF1CLK_ENA_MASK, aif1);
1904         snd_soc_update_bits(codec, WM8995_AIF2_CLOCKING_1,
1905                             WM8995_AIF2CLK_ENA_MASK, aif2);
1906
1907         configure_clock(codec);
1908
1909         return 0;
1910 }
1911
1912 static int wm8995_set_dai_sysclk(struct snd_soc_dai *dai,
1913                                  int clk_id, unsigned int freq, int dir)
1914 {
1915         struct snd_soc_codec *codec;
1916         struct wm8995_priv *wm8995;
1917
1918         codec = dai->codec;
1919         wm8995 = snd_soc_codec_get_drvdata(codec);
1920
1921         switch (dai->id) {
1922         case 0:
1923         case 1:
1924                 break;
1925         default:
1926                 /* AIF3 shares clocking with AIF1/2 */
1927                 return -EINVAL;
1928         }
1929
1930         switch (clk_id) {
1931         case WM8995_SYSCLK_MCLK1:
1932                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1;
1933                 wm8995->mclk[0] = freq;
1934                 dev_dbg(dai->dev, "AIF%d using MCLK1 at %uHz\n",
1935                         dai->id + 1, freq);
1936                 break;
1937         case WM8995_SYSCLK_MCLK2:
1938                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1;
1939                 wm8995->mclk[1] = freq;
1940                 dev_dbg(dai->dev, "AIF%d using MCLK2 at %uHz\n",
1941                         dai->id + 1, freq);
1942                 break;
1943         case WM8995_SYSCLK_FLL1:
1944                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL1;
1945                 dev_dbg(dai->dev, "AIF%d using FLL1\n", dai->id + 1);
1946                 break;
1947         case WM8995_SYSCLK_FLL2:
1948                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL2;
1949                 dev_dbg(dai->dev, "AIF%d using FLL2\n", dai->id + 1);
1950                 break;
1951         case WM8995_SYSCLK_OPCLK:
1952         default:
1953                 dev_err(dai->dev, "Unknown clock source %d\n", clk_id);
1954                 return -EINVAL;
1955         }
1956
1957         configure_clock(codec);
1958
1959         return 0;
1960 }
1961
1962 static int wm8995_set_bias_level(struct snd_soc_codec *codec,
1963                                  enum snd_soc_bias_level level)
1964 {
1965         struct wm8995_priv *wm8995;
1966         int ret;
1967
1968         wm8995 = snd_soc_codec_get_drvdata(codec);
1969         switch (level) {
1970         case SND_SOC_BIAS_ON:
1971         case SND_SOC_BIAS_PREPARE:
1972                 break;
1973         case SND_SOC_BIAS_STANDBY:
1974                 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
1975                         ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies),
1976                                                     wm8995->supplies);
1977                         if (ret)
1978                                 return ret;
1979
1980                         ret = regcache_sync(wm8995->regmap);
1981                         if (ret) {
1982                                 dev_err(codec->dev,
1983                                         "Failed to sync cache: %d\n", ret);
1984                                 return ret;
1985                         }
1986
1987                         snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
1988                                             WM8995_BG_ENA_MASK, WM8995_BG_ENA);
1989                 }
1990                 break;
1991         case SND_SOC_BIAS_OFF:
1992                 snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
1993                                     WM8995_BG_ENA_MASK, 0);
1994                 regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies),
1995                                        wm8995->supplies);
1996                 break;
1997         }
1998
1999         codec->dapm.bias_level = level;
2000         return 0;
2001 }
2002
2003 #ifdef CONFIG_PM
2004 static int wm8995_suspend(struct snd_soc_codec *codec)
2005 {
2006         wm8995_set_bias_level(codec, SND_SOC_BIAS_OFF);
2007         return 0;
2008 }
2009
2010 static int wm8995_resume(struct snd_soc_codec *codec)
2011 {
2012         wm8995_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
2013         return 0;
2014 }
2015 #else
2016 #define wm8995_suspend NULL
2017 #define wm8995_resume NULL
2018 #endif
2019
2020 static int wm8995_remove(struct snd_soc_codec *codec)
2021 {
2022         struct wm8995_priv *wm8995;
2023         int i;
2024
2025         wm8995 = snd_soc_codec_get_drvdata(codec);
2026         wm8995_set_bias_level(codec, SND_SOC_BIAS_OFF);
2027
2028         for (i = 0; i < ARRAY_SIZE(wm8995->supplies); ++i)
2029                 regulator_unregister_notifier(wm8995->supplies[i].consumer,
2030                                               &wm8995->disable_nb[i]);
2031
2032         regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2033         return 0;
2034 }
2035
2036 static int wm8995_probe(struct snd_soc_codec *codec)
2037 {
2038         struct wm8995_priv *wm8995;
2039         int i;
2040         int ret;
2041
2042         wm8995 = snd_soc_codec_get_drvdata(codec);
2043         wm8995->codec = codec;
2044
2045         for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++)
2046                 wm8995->supplies[i].supply = wm8995_supply_names[i];
2047
2048         ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8995->supplies),
2049                                  wm8995->supplies);
2050         if (ret) {
2051                 dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
2052                 return ret;
2053         }
2054
2055         wm8995->disable_nb[0].notifier_call = wm8995_regulator_event_0;
2056         wm8995->disable_nb[1].notifier_call = wm8995_regulator_event_1;
2057         wm8995->disable_nb[2].notifier_call = wm8995_regulator_event_2;
2058         wm8995->disable_nb[3].notifier_call = wm8995_regulator_event_3;
2059         wm8995->disable_nb[4].notifier_call = wm8995_regulator_event_4;
2060         wm8995->disable_nb[5].notifier_call = wm8995_regulator_event_5;
2061         wm8995->disable_nb[6].notifier_call = wm8995_regulator_event_6;
2062         wm8995->disable_nb[7].notifier_call = wm8995_regulator_event_7;
2063
2064         /* This should really be moved into the regulator core */
2065         for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++) {
2066                 ret = regulator_register_notifier(wm8995->supplies[i].consumer,
2067                                                   &wm8995->disable_nb[i]);
2068                 if (ret) {
2069                         dev_err(codec->dev,
2070                                 "Failed to register regulator notifier: %d\n",
2071                                 ret);
2072                 }
2073         }
2074
2075         ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies),
2076                                     wm8995->supplies);
2077         if (ret) {
2078                 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
2079                 goto err_reg_get;
2080         }
2081
2082         ret = snd_soc_read(codec, WM8995_SOFTWARE_RESET);
2083         if (ret < 0) {
2084                 dev_err(codec->dev, "Failed to read device ID: %d\n", ret);
2085                 goto err_reg_enable;
2086         }
2087
2088         if (ret != 0x8995) {
2089                 dev_err(codec->dev, "Invalid device ID: %#x\n", ret);
2090                 ret = -EINVAL;
2091                 goto err_reg_enable;
2092         }
2093
2094         ret = snd_soc_write(codec, WM8995_SOFTWARE_RESET, 0);
2095         if (ret < 0) {
2096                 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
2097                 goto err_reg_enable;
2098         }
2099
2100         wm8995_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
2101
2102         /* Latch volume updates (right only; we always do left then right). */
2103         snd_soc_update_bits(codec, WM8995_AIF1_DAC1_RIGHT_VOLUME,
2104                             WM8995_AIF1DAC1_VU_MASK, WM8995_AIF1DAC1_VU);
2105         snd_soc_update_bits(codec, WM8995_AIF1_DAC2_RIGHT_VOLUME,
2106                             WM8995_AIF1DAC2_VU_MASK, WM8995_AIF1DAC2_VU);
2107         snd_soc_update_bits(codec, WM8995_AIF2_DAC_RIGHT_VOLUME,
2108                             WM8995_AIF2DAC_VU_MASK, WM8995_AIF2DAC_VU);
2109         snd_soc_update_bits(codec, WM8995_AIF1_ADC1_RIGHT_VOLUME,
2110                             WM8995_AIF1ADC1_VU_MASK, WM8995_AIF1ADC1_VU);
2111         snd_soc_update_bits(codec, WM8995_AIF1_ADC2_RIGHT_VOLUME,
2112                             WM8995_AIF1ADC2_VU_MASK, WM8995_AIF1ADC2_VU);
2113         snd_soc_update_bits(codec, WM8995_AIF2_ADC_RIGHT_VOLUME,
2114                             WM8995_AIF2ADC_VU_MASK, WM8995_AIF1ADC2_VU);
2115         snd_soc_update_bits(codec, WM8995_DAC1_RIGHT_VOLUME,
2116                             WM8995_DAC1_VU_MASK, WM8995_DAC1_VU);
2117         snd_soc_update_bits(codec, WM8995_DAC2_RIGHT_VOLUME,
2118                             WM8995_DAC2_VU_MASK, WM8995_DAC2_VU);
2119         snd_soc_update_bits(codec, WM8995_RIGHT_LINE_INPUT_1_VOLUME,
2120                             WM8995_IN1_VU_MASK, WM8995_IN1_VU);
2121
2122         wm8995_update_class_w(codec);
2123
2124         snd_soc_add_codec_controls(codec, wm8995_snd_controls,
2125                              ARRAY_SIZE(wm8995_snd_controls));
2126         snd_soc_dapm_new_controls(&codec->dapm, wm8995_dapm_widgets,
2127                                   ARRAY_SIZE(wm8995_dapm_widgets));
2128         snd_soc_dapm_add_routes(&codec->dapm, wm8995_intercon,
2129                                 ARRAY_SIZE(wm8995_intercon));
2130
2131         return 0;
2132
2133 err_reg_enable:
2134         regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2135 err_reg_get:
2136         regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2137         return ret;
2138 }
2139
2140 #define WM8995_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
2141                         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
2142
2143 static const struct snd_soc_dai_ops wm8995_aif1_dai_ops = {
2144         .set_sysclk = wm8995_set_dai_sysclk,
2145         .set_fmt = wm8995_set_dai_fmt,
2146         .hw_params = wm8995_hw_params,
2147         .digital_mute = wm8995_aif_mute,
2148         .set_pll = wm8995_set_fll,
2149         .set_tristate = wm8995_set_tristate,
2150 };
2151
2152 static const struct snd_soc_dai_ops wm8995_aif2_dai_ops = {
2153         .set_sysclk = wm8995_set_dai_sysclk,
2154         .set_fmt = wm8995_set_dai_fmt,
2155         .hw_params = wm8995_hw_params,
2156         .digital_mute = wm8995_aif_mute,
2157         .set_pll = wm8995_set_fll,
2158         .set_tristate = wm8995_set_tristate,
2159 };
2160
2161 static const struct snd_soc_dai_ops wm8995_aif3_dai_ops = {
2162         .set_tristate = wm8995_set_tristate,
2163 };
2164
2165 static struct snd_soc_dai_driver wm8995_dai[] = {
2166         {
2167                 .name = "wm8995-aif1",
2168                 .playback = {
2169                         .stream_name = "AIF1 Playback",
2170                         .channels_min = 2,
2171                         .channels_max = 2,
2172                         .rates = SNDRV_PCM_RATE_8000_96000,
2173                         .formats = WM8995_FORMATS
2174                 },
2175                 .capture = {
2176                         .stream_name = "AIF1 Capture",
2177                         .channels_min = 2,
2178                         .channels_max = 2,
2179                         .rates = SNDRV_PCM_RATE_8000_48000,
2180                         .formats = WM8995_FORMATS
2181                 },
2182                 .ops = &wm8995_aif1_dai_ops
2183         },
2184         {
2185                 .name = "wm8995-aif2",
2186                 .playback = {
2187                         .stream_name = "AIF2 Playback",
2188                         .channels_min = 2,
2189                         .channels_max = 2,
2190                         .rates = SNDRV_PCM_RATE_8000_96000,
2191                         .formats = WM8995_FORMATS
2192                 },
2193                 .capture = {
2194                         .stream_name = "AIF2 Capture",
2195                         .channels_min = 2,
2196                         .channels_max = 2,
2197                         .rates = SNDRV_PCM_RATE_8000_48000,
2198                         .formats = WM8995_FORMATS
2199                 },
2200                 .ops = &wm8995_aif2_dai_ops
2201         },
2202         {
2203                 .name = "wm8995-aif3",
2204                 .playback = {
2205                         .stream_name = "AIF3 Playback",
2206                         .channels_min = 2,
2207                         .channels_max = 2,
2208                         .rates = SNDRV_PCM_RATE_8000_96000,
2209                         .formats = WM8995_FORMATS
2210                 },
2211                 .capture = {
2212                         .stream_name = "AIF3 Capture",
2213                         .channels_min = 2,
2214                         .channels_max = 2,
2215                         .rates = SNDRV_PCM_RATE_8000_48000,
2216                         .formats = WM8995_FORMATS
2217                 },
2218                 .ops = &wm8995_aif3_dai_ops
2219         }
2220 };
2221
2222 static struct snd_soc_codec_driver soc_codec_dev_wm8995 = {
2223         .probe = wm8995_probe,
2224         .remove = wm8995_remove,
2225         .suspend = wm8995_suspend,
2226         .resume = wm8995_resume,
2227         .set_bias_level = wm8995_set_bias_level,
2228         .idle_bias_off = true,
2229 };
2230
2231 static struct regmap_config wm8995_regmap = {
2232         .reg_bits = 16,
2233         .val_bits = 16,
2234
2235         .max_register = WM8995_MAX_REGISTER,
2236         .reg_defaults = wm8995_reg_defaults,
2237         .num_reg_defaults = ARRAY_SIZE(wm8995_reg_defaults),
2238         .volatile_reg = wm8995_volatile,
2239         .readable_reg = wm8995_readable,
2240         .cache_type = REGCACHE_RBTREE,
2241 };
2242
2243 #if defined(CONFIG_SPI_MASTER)
2244 static int wm8995_spi_probe(struct spi_device *spi)
2245 {
2246         struct wm8995_priv *wm8995;
2247         int ret;
2248
2249         wm8995 = devm_kzalloc(&spi->dev, sizeof(*wm8995), GFP_KERNEL);
2250         if (!wm8995)
2251                 return -ENOMEM;
2252
2253         spi_set_drvdata(spi, wm8995);
2254
2255         wm8995->regmap = devm_regmap_init_spi(spi, &wm8995_regmap);
2256         if (IS_ERR(wm8995->regmap)) {
2257                 ret = PTR_ERR(wm8995->regmap);
2258                 dev_err(&spi->dev, "Failed to register regmap: %d\n", ret);
2259                 return ret;
2260         }
2261
2262         ret = snd_soc_register_codec(&spi->dev,
2263                                      &soc_codec_dev_wm8995, wm8995_dai,
2264                                      ARRAY_SIZE(wm8995_dai));
2265         return ret;
2266 }
2267
2268 static int wm8995_spi_remove(struct spi_device *spi)
2269 {
2270         snd_soc_unregister_codec(&spi->dev);
2271         return 0;
2272 }
2273
2274 static struct spi_driver wm8995_spi_driver = {
2275         .driver = {
2276                 .name = "wm8995",
2277                 .owner = THIS_MODULE,
2278         },
2279         .probe = wm8995_spi_probe,
2280         .remove = wm8995_spi_remove
2281 };
2282 #endif
2283
2284 #if IS_ENABLED(CONFIG_I2C)
2285 static int wm8995_i2c_probe(struct i2c_client *i2c,
2286                             const struct i2c_device_id *id)
2287 {
2288         struct wm8995_priv *wm8995;
2289         int ret;
2290
2291         wm8995 = devm_kzalloc(&i2c->dev, sizeof(*wm8995), GFP_KERNEL);
2292         if (!wm8995)
2293                 return -ENOMEM;
2294
2295         i2c_set_clientdata(i2c, wm8995);
2296
2297         wm8995->regmap = devm_regmap_init_i2c(i2c, &wm8995_regmap);
2298         if (IS_ERR(wm8995->regmap)) {
2299                 ret = PTR_ERR(wm8995->regmap);
2300                 dev_err(&i2c->dev, "Failed to register regmap: %d\n", ret);
2301                 return ret;
2302         }
2303
2304         ret = snd_soc_register_codec(&i2c->dev,
2305                                      &soc_codec_dev_wm8995, wm8995_dai,
2306                                      ARRAY_SIZE(wm8995_dai));
2307         if (ret < 0)
2308                 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
2309
2310         return ret;
2311 }
2312
2313 static int wm8995_i2c_remove(struct i2c_client *client)
2314 {
2315         snd_soc_unregister_codec(&client->dev);
2316         return 0;
2317 }
2318
2319 static const struct i2c_device_id wm8995_i2c_id[] = {
2320         {"wm8995", 0},
2321         {}
2322 };
2323
2324 MODULE_DEVICE_TABLE(i2c, wm8995_i2c_id);
2325
2326 static struct i2c_driver wm8995_i2c_driver = {
2327         .driver = {
2328                 .name = "wm8995",
2329                 .owner = THIS_MODULE,
2330         },
2331         .probe = wm8995_i2c_probe,
2332         .remove = wm8995_i2c_remove,
2333         .id_table = wm8995_i2c_id
2334 };
2335 #endif
2336
2337 static int __init wm8995_modinit(void)
2338 {
2339         int ret = 0;
2340
2341 #if IS_ENABLED(CONFIG_I2C)
2342         ret = i2c_add_driver(&wm8995_i2c_driver);
2343         if (ret) {
2344                 printk(KERN_ERR "Failed to register wm8995 I2C driver: %d\n",
2345                        ret);
2346         }
2347 #endif
2348 #if defined(CONFIG_SPI_MASTER)
2349         ret = spi_register_driver(&wm8995_spi_driver);
2350         if (ret) {
2351                 printk(KERN_ERR "Failed to register wm8995 SPI driver: %d\n",
2352                        ret);
2353         }
2354 #endif
2355         return ret;
2356 }
2357
2358 module_init(wm8995_modinit);
2359
2360 static void __exit wm8995_exit(void)
2361 {
2362 #if IS_ENABLED(CONFIG_I2C)
2363         i2c_del_driver(&wm8995_i2c_driver);
2364 #endif
2365 #if defined(CONFIG_SPI_MASTER)
2366         spi_unregister_driver(&wm8995_spi_driver);
2367 #endif
2368 }
2369
2370 module_exit(wm8995_exit);
2371
2372 MODULE_DESCRIPTION("ASoC WM8995 driver");
2373 MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>");
2374 MODULE_LICENSE("GPL");