linux/sound/soc/codecs/wm8995.c
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   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
  36static 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
  47static 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
 374struct fll_config {
 375        int src;
 376        int in;
 377        int out;
 378};
 379
 380struct 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) \
 397static 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
 408WM8995_REGULATOR_EVENT(0)
 409WM8995_REGULATOR_EVENT(1)
 410WM8995_REGULATOR_EVENT(2)
 411WM8995_REGULATOR_EVENT(3)
 412WM8995_REGULATOR_EVENT(4)
 413WM8995_REGULATOR_EVENT(5)
 414WM8995_REGULATOR_EVENT(6)
 415WM8995_REGULATOR_EVENT(7)
 416
 417static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
 418static const DECLARE_TLV_DB_SCALE(in1lr_pga_tlv, -1650, 150, 0);
 419static const DECLARE_TLV_DB_SCALE(in1l_boost_tlv, 0, 600, 0);
 420static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 150, 0);
 421
 422static const char *in1l_text[] = {
 423        "Differential", "Single-ended IN1LN", "Single-ended IN1LP"
 424};
 425
 426static const SOC_ENUM_SINGLE_DECL(in1l_enum, WM8995_LEFT_LINE_INPUT_CONTROL,
 427                                  2, in1l_text);
 428
 429static const char *in1r_text[] = {
 430        "Differential", "Single-ended IN1RN", "Single-ended IN1RP"
 431};
 432
 433static const SOC_ENUM_SINGLE_DECL(in1r_enum, WM8995_LEFT_LINE_INPUT_CONTROL,
 434                                  0, in1r_text);
 435
 436static const char *dmic_src_text[] = {
 437        "DMICDAT1", "DMICDAT2", "DMICDAT3"
 438};
 439
 440static const SOC_ENUM_SINGLE_DECL(dmic_src1_enum, WM8995_POWER_MANAGEMENT_5,
 441                                  8, dmic_src_text);
 442static const SOC_ENUM_SINGLE_DECL(dmic_src2_enum, WM8995_POWER_MANAGEMENT_5,
 443                                  6, dmic_src_text);
 444
 445static 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
 488static 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
 534static 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
 549static int wm8995_put_class_w(struct snd_kcontrol *kcontrol,
 550                              struct snd_ctl_elem_value *ucontrol)
 551{
 552        struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
 553        struct snd_soc_dapm_widget *w = wlist->widgets[0];
 554        struct snd_soc_codec *codec;
 555        int ret;
 556
 557        codec = w->codec;
 558        ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
 559        wm8995_update_class_w(codec);
 560        return ret;
 561}
 562
 563static int hp_supply_event(struct snd_soc_dapm_widget *w,
 564                           struct snd_kcontrol *kcontrol, int event)
 565{
 566        struct snd_soc_codec *codec;
 567        struct wm8995_priv *wm8995;
 568
 569        codec = w->codec;
 570        wm8995 = snd_soc_codec_get_drvdata(codec);
 571
 572        switch (event) {
 573        case SND_SOC_DAPM_PRE_PMU:
 574                /* Enable the headphone amp */
 575                snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 576                                    WM8995_HPOUT1L_ENA_MASK |
 577                                    WM8995_HPOUT1R_ENA_MASK,
 578                                    WM8995_HPOUT1L_ENA |
 579                                    WM8995_HPOUT1R_ENA);
 580
 581                /* Enable the second stage */
 582                snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1,
 583                                    WM8995_HPOUT1L_DLY_MASK |
 584                                    WM8995_HPOUT1R_DLY_MASK,
 585                                    WM8995_HPOUT1L_DLY |
 586                                    WM8995_HPOUT1R_DLY);
 587                break;
 588        case SND_SOC_DAPM_PRE_PMD:
 589                snd_soc_update_bits(codec, WM8995_CHARGE_PUMP_1,
 590                                    WM8995_CP_ENA_MASK, 0);
 591                break;
 592        }
 593
 594        return 0;
 595}
 596
 597static void dc_servo_cmd(struct snd_soc_codec *codec,
 598                         unsigned int reg, unsigned int val, unsigned int mask)
 599{
 600        int timeout = 10;
 601
 602        dev_dbg(codec->dev, "%s: reg = %#x, val = %#x, mask = %#x\n",
 603                __func__, reg, val, mask);
 604
 605        snd_soc_write(codec, reg, val);
 606        while (timeout--) {
 607                msleep(10);
 608                val = snd_soc_read(codec, WM8995_DC_SERVO_READBACK_0);
 609                if ((val & mask) == mask)
 610                        return;
 611        }
 612
 613        dev_err(codec->dev, "Timed out waiting for DC Servo\n");
 614}
 615
 616static int hp_event(struct snd_soc_dapm_widget *w,
 617                    struct snd_kcontrol *kcontrol, int event)
 618{
 619        struct snd_soc_codec *codec;
 620        unsigned int reg;
 621
 622        codec = w->codec;
 623        reg = snd_soc_read(codec, WM8995_ANALOGUE_HP_1);
 624
 625        switch (event) {
 626        case SND_SOC_DAPM_POST_PMU:
 627                snd_soc_update_bits(codec, WM8995_CHARGE_PUMP_1,
 628                                    WM8995_CP_ENA_MASK, WM8995_CP_ENA);
 629
 630                msleep(5);
 631
 632                snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 633                                    WM8995_HPOUT1L_ENA_MASK |
 634                                    WM8995_HPOUT1R_ENA_MASK,
 635                                    WM8995_HPOUT1L_ENA | WM8995_HPOUT1R_ENA);
 636
 637                udelay(20);
 638
 639                reg |= WM8995_HPOUT1L_DLY | WM8995_HPOUT1R_DLY;
 640                snd_soc_write(codec, WM8995_ANALOGUE_HP_1, reg);
 641
 642                snd_soc_write(codec, WM8995_DC_SERVO_1, WM8995_DCS_ENA_CHAN_0 |
 643                              WM8995_DCS_ENA_CHAN_1);
 644
 645                dc_servo_cmd(codec, WM8995_DC_SERVO_2,
 646                             WM8995_DCS_TRIG_STARTUP_0 |
 647                             WM8995_DCS_TRIG_STARTUP_1,
 648                             WM8995_DCS_TRIG_DAC_WR_0 |
 649                             WM8995_DCS_TRIG_DAC_WR_1);
 650
 651                reg |= WM8995_HPOUT1R_OUTP | WM8995_HPOUT1R_RMV_SHORT |
 652                       WM8995_HPOUT1L_OUTP | WM8995_HPOUT1L_RMV_SHORT;
 653                snd_soc_write(codec, WM8995_ANALOGUE_HP_1, reg);
 654
 655                break;
 656        case SND_SOC_DAPM_PRE_PMD:
 657                snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1,
 658                                    WM8995_HPOUT1L_OUTP_MASK |
 659                                    WM8995_HPOUT1R_OUTP_MASK |
 660                                    WM8995_HPOUT1L_RMV_SHORT_MASK |
 661                                    WM8995_HPOUT1R_RMV_SHORT_MASK, 0);
 662
 663                snd_soc_update_bits(codec, WM8995_ANALOGUE_HP_1,
 664                                    WM8995_HPOUT1L_DLY_MASK |
 665                                    WM8995_HPOUT1R_DLY_MASK, 0);
 666
 667                snd_soc_write(codec, WM8995_DC_SERVO_1, 0);
 668
 669                snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
 670                                    WM8995_HPOUT1L_ENA_MASK |
 671                                    WM8995_HPOUT1R_ENA_MASK,
 672                                    0);
 673                break;
 674        }
 675
 676        return 0;
 677}
 678
 679static int configure_aif_clock(struct snd_soc_codec *codec, int aif)
 680{
 681        struct wm8995_priv *wm8995;
 682        int rate;
 683        int reg1 = 0;
 684        int offset;
 685
 686        wm8995 = snd_soc_codec_get_drvdata(codec);
 687
 688        if (aif)
 689                offset = 4;
 690        else
 691                offset = 0;
 692
 693        switch (wm8995->sysclk[aif]) {
 694        case WM8995_SYSCLK_MCLK1:
 695                rate = wm8995->mclk[0];
 696                break;
 697        case WM8995_SYSCLK_MCLK2:
 698                reg1 |= 0x8;
 699                rate = wm8995->mclk[1];
 700                break;
 701        case WM8995_SYSCLK_FLL1:
 702                reg1 |= 0x10;
 703                rate = wm8995->fll[0].out;
 704                break;
 705        case WM8995_SYSCLK_FLL2:
 706                reg1 |= 0x18;
 707                rate = wm8995->fll[1].out;
 708                break;
 709        default:
 710                return -EINVAL;
 711        }
 712
 713        if (rate >= 13500000) {
 714                rate /= 2;
 715                reg1 |= WM8995_AIF1CLK_DIV;
 716
 717                dev_dbg(codec->dev, "Dividing AIF%d clock to %dHz\n",
 718                        aif + 1, rate);
 719        }
 720
 721        wm8995->aifclk[aif] = rate;
 722
 723        snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1 + offset,
 724                            WM8995_AIF1CLK_SRC_MASK | WM8995_AIF1CLK_DIV_MASK,
 725                            reg1);
 726        return 0;
 727}
 728
 729static int configure_clock(struct snd_soc_codec *codec)
 730{
 731        struct wm8995_priv *wm8995;
 732        int change, new;
 733
 734        wm8995 = snd_soc_codec_get_drvdata(codec);
 735
 736        /* Bring up the AIF clocks first */
 737        configure_aif_clock(codec, 0);
 738        configure_aif_clock(codec, 1);
 739
 740        /*
 741         * Then switch CLK_SYS over to the higher of them; a change
 742         * can only happen as a result of a clocking change which can
 743         * only be made outside of DAPM so we can safely redo the
 744         * clocking.
 745         */
 746
 747        /* If they're equal it doesn't matter which is used */
 748        if (wm8995->aifclk[0] == wm8995->aifclk[1])
 749                return 0;
 750
 751        if (wm8995->aifclk[0] < wm8995->aifclk[1])
 752                new = WM8995_SYSCLK_SRC;
 753        else
 754                new = 0;
 755
 756        change = snd_soc_update_bits(codec, WM8995_CLOCKING_1,
 757                                     WM8995_SYSCLK_SRC_MASK, new);
 758        if (!change)
 759                return 0;
 760
 761        snd_soc_dapm_sync(&codec->dapm);
 762
 763        return 0;
 764}
 765
 766static int clk_sys_event(struct snd_soc_dapm_widget *w,
 767                         struct snd_kcontrol *kcontrol, int event)
 768{
 769        struct snd_soc_codec *codec;
 770
 771        codec = w->codec;
 772
 773        switch (event) {
 774        case SND_SOC_DAPM_PRE_PMU:
 775                return configure_clock(codec);
 776
 777        case SND_SOC_DAPM_POST_PMD:
 778                configure_clock(codec);
 779                break;
 780        }
 781
 782        return 0;
 783}
 784
 785static const char *sidetone_text[] = {
 786        "ADC/DMIC1", "DMIC2",
 787};
 788
 789static const struct soc_enum sidetone1_enum =
 790        SOC_ENUM_SINGLE(WM8995_SIDETONE, 0, 2, sidetone_text);
 791
 792static const struct snd_kcontrol_new sidetone1_mux =
 793        SOC_DAPM_ENUM("Left Sidetone Mux", sidetone1_enum);
 794
 795static const struct soc_enum sidetone2_enum =
 796        SOC_ENUM_SINGLE(WM8995_SIDETONE, 1, 2, sidetone_text);
 797
 798static const struct snd_kcontrol_new sidetone2_mux =
 799        SOC_DAPM_ENUM("Right Sidetone Mux", sidetone2_enum);
 800
 801static const struct snd_kcontrol_new aif1adc1l_mix[] = {
 802        SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING,
 803                1, 1, 0),
 804        SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING,
 805                0, 1, 0),
 806};
 807
 808static const struct snd_kcontrol_new aif1adc1r_mix[] = {
 809        SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING,
 810                1, 1, 0),
 811        SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING,
 812                0, 1, 0),
 813};
 814
 815static const struct snd_kcontrol_new aif1adc2l_mix[] = {
 816        SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING,
 817                1, 1, 0),
 818        SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING,
 819                0, 1, 0),
 820};
 821
 822static const struct snd_kcontrol_new aif1adc2r_mix[] = {
 823        SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING,
 824                1, 1, 0),
 825        SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING,
 826                0, 1, 0),
 827};
 828
 829static const struct snd_kcontrol_new dac1l_mix[] = {
 830        WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 831                5, 1, 0),
 832        WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 833                4, 1, 0),
 834        WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 835                2, 1, 0),
 836        WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 837                1, 1, 0),
 838        WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
 839                0, 1, 0),
 840};
 841
 842static const struct snd_kcontrol_new dac1r_mix[] = {
 843        WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 844                5, 1, 0),
 845        WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 846                4, 1, 0),
 847        WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 848                2, 1, 0),
 849        WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 850                1, 1, 0),
 851        WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
 852                0, 1, 0),
 853};
 854
 855static const struct snd_kcontrol_new aif2dac2l_mix[] = {
 856        SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 857                5, 1, 0),
 858        SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 859                4, 1, 0),
 860        SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 861                2, 1, 0),
 862        SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 863                1, 1, 0),
 864        SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
 865                0, 1, 0),
 866};
 867
 868static const struct snd_kcontrol_new aif2dac2r_mix[] = {
 869        SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 870                5, 1, 0),
 871        SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 872                4, 1, 0),
 873        SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 874                2, 1, 0),
 875        SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 876                1, 1, 0),
 877        SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
 878                0, 1, 0),
 879};
 880
 881static const struct snd_kcontrol_new in1l_pga =
 882        SOC_DAPM_SINGLE("IN1L Switch", WM8995_POWER_MANAGEMENT_2, 5, 1, 0);
 883
 884static const struct snd_kcontrol_new in1r_pga =
 885        SOC_DAPM_SINGLE("IN1R Switch", WM8995_POWER_MANAGEMENT_2, 4, 1, 0);
 886
 887static const char *adc_mux_text[] = {
 888        "ADC",
 889        "DMIC",
 890};
 891
 892static const struct soc_enum adc_enum =
 893        SOC_ENUM_SINGLE(0, 0, 2, adc_mux_text);
 894
 895static const struct snd_kcontrol_new adcl_mux =
 896        SOC_DAPM_ENUM_VIRT("ADCL Mux", adc_enum);
 897
 898static const struct snd_kcontrol_new adcr_mux =
 899        SOC_DAPM_ENUM_VIRT("ADCR Mux", adc_enum);
 900
 901static const char *spk_src_text[] = {
 902        "DAC1L", "DAC1R", "DAC2L", "DAC2R"
 903};
 904
 905static const SOC_ENUM_SINGLE_DECL(spk1l_src_enum, WM8995_LEFT_PDM_SPEAKER_1,
 906                                  0, spk_src_text);
 907static const SOC_ENUM_SINGLE_DECL(spk1r_src_enum, WM8995_RIGHT_PDM_SPEAKER_1,
 908                                  0, spk_src_text);
 909static const SOC_ENUM_SINGLE_DECL(spk2l_src_enum, WM8995_LEFT_PDM_SPEAKER_2,
 910                                  0, spk_src_text);
 911static const SOC_ENUM_SINGLE_DECL(spk2r_src_enum, WM8995_RIGHT_PDM_SPEAKER_2,
 912                                  0, spk_src_text);
 913
 914static const struct snd_kcontrol_new spk1l_mux =
 915        SOC_DAPM_ENUM("SPK1L SRC", spk1l_src_enum);
 916static const struct snd_kcontrol_new spk1r_mux =
 917        SOC_DAPM_ENUM("SPK1R SRC", spk1r_src_enum);
 918static const struct snd_kcontrol_new spk2l_mux =
 919        SOC_DAPM_ENUM("SPK2L SRC", spk2l_src_enum);
 920static const struct snd_kcontrol_new spk2r_mux =
 921        SOC_DAPM_ENUM("SPK2R SRC", spk2r_src_enum);
 922
 923static const struct snd_soc_dapm_widget wm8995_dapm_widgets[] = {
 924        SND_SOC_DAPM_INPUT("DMIC1DAT"),
 925        SND_SOC_DAPM_INPUT("DMIC2DAT"),
 926
 927        SND_SOC_DAPM_INPUT("IN1L"),
 928        SND_SOC_DAPM_INPUT("IN1R"),
 929
 930        SND_SOC_DAPM_MIXER("IN1L PGA", SND_SOC_NOPM, 0, 0,
 931                &in1l_pga, 1),
 932        SND_SOC_DAPM_MIXER("IN1R PGA", SND_SOC_NOPM, 0, 0,
 933                &in1r_pga, 1),
 934
 935        SND_SOC_DAPM_SUPPLY("MICBIAS1", WM8995_POWER_MANAGEMENT_1, 8, 0,
 936                            NULL, 0),
 937        SND_SOC_DAPM_SUPPLY("MICBIAS2", WM8995_POWER_MANAGEMENT_1, 9, 0,
 938                            NULL, 0),
 939
 940        SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8995_AIF1_CLOCKING_1, 0, 0, NULL, 0),
 941        SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8995_AIF2_CLOCKING_1, 0, 0, NULL, 0),
 942        SND_SOC_DAPM_SUPPLY("DSP1CLK", WM8995_CLOCKING_1, 3, 0, NULL, 0),
 943        SND_SOC_DAPM_SUPPLY("DSP2CLK", WM8995_CLOCKING_1, 2, 0, NULL, 0),
 944        SND_SOC_DAPM_SUPPLY("SYSDSPCLK", WM8995_CLOCKING_1, 1, 0, NULL, 0),
 945        SND_SOC_DAPM_SUPPLY("CLK_SYS", SND_SOC_NOPM, 0, 0, clk_sys_event,
 946                SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 947
 948        SND_SOC_DAPM_AIF_OUT("AIF1ADC1L", "AIF1 Capture", 0,
 949                WM8995_POWER_MANAGEMENT_3, 9, 0),
 950        SND_SOC_DAPM_AIF_OUT("AIF1ADC1R", "AIF1 Capture", 0,
 951                WM8995_POWER_MANAGEMENT_3, 8, 0),
 952        SND_SOC_DAPM_AIF_OUT("AIF1ADCDAT", "AIF1 Capture", 0,
 953        SND_SOC_NOPM, 0, 0),
 954        SND_SOC_DAPM_AIF_OUT("AIF1ADC2L", "AIF1 Capture",
 955                0, WM8995_POWER_MANAGEMENT_3, 11, 0),
 956        SND_SOC_DAPM_AIF_OUT("AIF1ADC2R", "AIF1 Capture",
 957                0, WM8995_POWER_MANAGEMENT_3, 10, 0),
 958
 959        SND_SOC_DAPM_VIRT_MUX("ADCL Mux", SND_SOC_NOPM, 1, 0,
 960                &adcl_mux),
 961        SND_SOC_DAPM_VIRT_MUX("ADCR Mux", SND_SOC_NOPM, 0, 0,
 962                &adcr_mux),
 963
 964        SND_SOC_DAPM_ADC("DMIC2L", NULL, WM8995_POWER_MANAGEMENT_3, 5, 0),
 965        SND_SOC_DAPM_ADC("DMIC2R", NULL, WM8995_POWER_MANAGEMENT_3, 4, 0),
 966        SND_SOC_DAPM_ADC("DMIC1L", NULL, WM8995_POWER_MANAGEMENT_3, 3, 0),
 967        SND_SOC_DAPM_ADC("DMIC1R", NULL, WM8995_POWER_MANAGEMENT_3, 2, 0),
 968
 969        SND_SOC_DAPM_ADC("ADCL", NULL, WM8995_POWER_MANAGEMENT_3, 1, 0),
 970        SND_SOC_DAPM_ADC("ADCR", NULL, WM8995_POWER_MANAGEMENT_3, 0, 0),
 971
 972        SND_SOC_DAPM_MIXER("AIF1ADC1L Mixer", SND_SOC_NOPM, 0, 0,
 973                aif1adc1l_mix, ARRAY_SIZE(aif1adc1l_mix)),
 974        SND_SOC_DAPM_MIXER("AIF1ADC1R Mixer", SND_SOC_NOPM, 0, 0,
 975                aif1adc1r_mix, ARRAY_SIZE(aif1adc1r_mix)),
 976        SND_SOC_DAPM_MIXER("AIF1ADC2L Mixer", SND_SOC_NOPM, 0, 0,
 977                aif1adc2l_mix, ARRAY_SIZE(aif1adc2l_mix)),
 978        SND_SOC_DAPM_MIXER("AIF1ADC2R Mixer", SND_SOC_NOPM, 0, 0,
 979                aif1adc2r_mix, ARRAY_SIZE(aif1adc2r_mix)),
 980
 981        SND_SOC_DAPM_AIF_IN("AIF1DAC1L", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 982                9, 0),
 983        SND_SOC_DAPM_AIF_IN("AIF1DAC1R", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 984                8, 0),
 985        SND_SOC_DAPM_AIF_IN("AIF1DACDAT", "AIF1 Playback", 0, SND_SOC_NOPM,
 986                0, 0),
 987
 988        SND_SOC_DAPM_AIF_IN("AIF1DAC2L", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 989                11, 0),
 990        SND_SOC_DAPM_AIF_IN("AIF1DAC2R", NULL, 0, WM8995_POWER_MANAGEMENT_4,
 991                10, 0),
 992
 993        SND_SOC_DAPM_MIXER("AIF2DAC2L Mixer", SND_SOC_NOPM, 0, 0,
 994                aif2dac2l_mix, ARRAY_SIZE(aif2dac2l_mix)),
 995        SND_SOC_DAPM_MIXER("AIF2DAC2R Mixer", SND_SOC_NOPM, 0, 0,
 996                aif2dac2r_mix, ARRAY_SIZE(aif2dac2r_mix)),
 997
 998        SND_SOC_DAPM_DAC("DAC2L", NULL, WM8995_POWER_MANAGEMENT_4, 3, 0),
 999        SND_SOC_DAPM_DAC("DAC2R", NULL, WM8995_POWER_MANAGEMENT_4, 2, 0),
1000        SND_SOC_DAPM_DAC("DAC1L", NULL, WM8995_POWER_MANAGEMENT_4, 1, 0),
1001        SND_SOC_DAPM_DAC("DAC1R", NULL, WM8995_POWER_MANAGEMENT_4, 0, 0),
1002
1003        SND_SOC_DAPM_MIXER("DAC1L Mixer", SND_SOC_NOPM, 0, 0, dac1l_mix,
1004                ARRAY_SIZE(dac1l_mix)),
1005        SND_SOC_DAPM_MIXER("DAC1R Mixer", SND_SOC_NOPM, 0, 0, dac1r_mix,
1006                ARRAY_SIZE(dac1r_mix)),
1007
1008        SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &sidetone1_mux),
1009        SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &sidetone2_mux),
1010
1011        SND_SOC_DAPM_PGA_E("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
1012                hp_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1013
1014        SND_SOC_DAPM_SUPPLY("Headphone Supply", SND_SOC_NOPM, 0, 0,
1015                hp_supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1016
1017        SND_SOC_DAPM_MUX("SPK1L Driver", WM8995_LEFT_PDM_SPEAKER_1,
1018                4, 0, &spk1l_mux),
1019        SND_SOC_DAPM_MUX("SPK1R Driver", WM8995_RIGHT_PDM_SPEAKER_1,
1020                4, 0, &spk1r_mux),
1021        SND_SOC_DAPM_MUX("SPK2L Driver", WM8995_LEFT_PDM_SPEAKER_2,
1022                4, 0, &spk2l_mux),
1023        SND_SOC_DAPM_MUX("SPK2R Driver", WM8995_RIGHT_PDM_SPEAKER_2,
1024                4, 0, &spk2r_mux),
1025
1026        SND_SOC_DAPM_SUPPLY("LDO2", WM8995_POWER_MANAGEMENT_2, 1, 0, NULL, 0),
1027
1028        SND_SOC_DAPM_OUTPUT("HP1L"),
1029        SND_SOC_DAPM_OUTPUT("HP1R"),
1030        SND_SOC_DAPM_OUTPUT("SPK1L"),
1031        SND_SOC_DAPM_OUTPUT("SPK1R"),
1032        SND_SOC_DAPM_OUTPUT("SPK2L"),
1033        SND_SOC_DAPM_OUTPUT("SPK2R")
1034};
1035
1036static const struct snd_soc_dapm_route wm8995_intercon[] = {
1037        { "CLK_SYS", NULL, "AIF1CLK", check_clk_sys },
1038        { "CLK_SYS", NULL, "AIF2CLK", check_clk_sys },
1039
1040        { "DSP1CLK", NULL, "CLK_SYS" },
1041        { "DSP2CLK", NULL, "CLK_SYS" },
1042        { "SYSDSPCLK", NULL, "CLK_SYS" },
1043
1044        { "AIF1ADC1L", NULL, "AIF1CLK" },
1045        { "AIF1ADC1L", NULL, "DSP1CLK" },
1046        { "AIF1ADC1R", NULL, "AIF1CLK" },
1047        { "AIF1ADC1R", NULL, "DSP1CLK" },
1048        { "AIF1ADC1R", NULL, "SYSDSPCLK" },
1049
1050        { "AIF1ADC2L", NULL, "AIF1CLK" },
1051        { "AIF1ADC2L", NULL, "DSP1CLK" },
1052        { "AIF1ADC2R", NULL, "AIF1CLK" },
1053        { "AIF1ADC2R", NULL, "DSP1CLK" },
1054        { "AIF1ADC2R", NULL, "SYSDSPCLK" },
1055
1056        { "DMIC1L", NULL, "DMIC1DAT" },
1057        { "DMIC1L", NULL, "CLK_SYS" },
1058        { "DMIC1R", NULL, "DMIC1DAT" },
1059        { "DMIC1R", NULL, "CLK_SYS" },
1060        { "DMIC2L", NULL, "DMIC2DAT" },
1061        { "DMIC2L", NULL, "CLK_SYS" },
1062        { "DMIC2R", NULL, "DMIC2DAT" },
1063        { "DMIC2R", NULL, "CLK_SYS" },
1064
1065        { "ADCL", NULL, "AIF1CLK" },
1066        { "ADCL", NULL, "DSP1CLK" },
1067        { "ADCL", NULL, "SYSDSPCLK" },
1068
1069        { "ADCR", NULL, "AIF1CLK" },
1070        { "ADCR", NULL, "DSP1CLK" },
1071        { "ADCR", NULL, "SYSDSPCLK" },
1072
1073        { "IN1L PGA", "IN1L Switch", "IN1L" },
1074        { "IN1R PGA", "IN1R Switch", "IN1R" },
1075        { "IN1L PGA", NULL, "LDO2" },
1076        { "IN1R PGA", NULL, "LDO2" },
1077
1078        { "ADCL", NULL, "IN1L PGA" },
1079        { "ADCR", NULL, "IN1R PGA" },
1080
1081        { "ADCL Mux", "ADC", "ADCL" },
1082        { "ADCL Mux", "DMIC", "DMIC1L" },
1083        { "ADCR Mux", "ADC", "ADCR" },
1084        { "ADCR Mux", "DMIC", "DMIC1R" },
1085
1086        /* AIF1 outputs */
1087        { "AIF1ADC1L", NULL, "AIF1ADC1L Mixer" },
1088        { "AIF1ADC1L Mixer", "ADC/DMIC Switch", "ADCL Mux" },
1089
1090        { "AIF1ADC1R", NULL, "AIF1ADC1R Mixer" },
1091        { "AIF1ADC1R Mixer", "ADC/DMIC Switch", "ADCR Mux" },
1092
1093        { "AIF1ADC2L", NULL, "AIF1ADC2L Mixer" },
1094        { "AIF1ADC2L Mixer", "DMIC Switch", "DMIC2L" },
1095
1096        { "AIF1ADC2R", NULL, "AIF1ADC2R Mixer" },
1097        { "AIF1ADC2R Mixer", "DMIC Switch", "DMIC2R" },
1098
1099        /* Sidetone */
1100        { "Left Sidetone", "ADC/DMIC1", "AIF1ADC1L" },
1101        { "Left Sidetone", "DMIC2", "AIF1ADC2L" },
1102        { "Right Sidetone", "ADC/DMIC1", "AIF1ADC1R" },
1103        { "Right Sidetone", "DMIC2", "AIF1ADC2R" },
1104
1105        { "AIF1DAC1L", NULL, "AIF1CLK" },
1106        { "AIF1DAC1L", NULL, "DSP1CLK" },
1107        { "AIF1DAC1R", NULL, "AIF1CLK" },
1108        { "AIF1DAC1R", NULL, "DSP1CLK" },
1109        { "AIF1DAC1R", NULL, "SYSDSPCLK" },
1110
1111        { "AIF1DAC2L", NULL, "AIF1CLK" },
1112        { "AIF1DAC2L", NULL, "DSP1CLK" },
1113        { "AIF1DAC2R", NULL, "AIF1CLK" },
1114        { "AIF1DAC2R", NULL, "DSP1CLK" },
1115        { "AIF1DAC2R", NULL, "SYSDSPCLK" },
1116
1117        { "DAC1L", NULL, "AIF1CLK" },
1118        { "DAC1L", NULL, "DSP1CLK" },
1119        { "DAC1L", NULL, "SYSDSPCLK" },
1120
1121        { "DAC1R", NULL, "AIF1CLK" },
1122        { "DAC1R", NULL, "DSP1CLK" },
1123        { "DAC1R", NULL, "SYSDSPCLK" },
1124
1125        { "AIF1DAC1L", NULL, "AIF1DACDAT" },
1126        { "AIF1DAC1R", NULL, "AIF1DACDAT" },
1127        { "AIF1DAC2L", NULL, "AIF1DACDAT" },
1128        { "AIF1DAC2R", NULL, "AIF1DACDAT" },
1129
1130        /* DAC1 inputs */
1131        { "DAC1L", NULL, "DAC1L Mixer" },
1132        { "DAC1L Mixer", "AIF1.1 Switch", "AIF1DAC1L" },
1133        { "DAC1L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
1134        { "DAC1L Mixer", "Left Sidetone Switch", "Left Sidetone" },
1135        { "DAC1L Mixer", "Right Sidetone Switch", "Right Sidetone" },
1136
1137        { "DAC1R", NULL, "DAC1R Mixer" },
1138        { "DAC1R Mixer", "AIF1.1 Switch", "AIF1DAC1R" },
1139        { "DAC1R Mixer", "AIF1.2 Switch", "AIF1DAC2R" },
1140        { "DAC1R Mixer", "Left Sidetone Switch", "Left Sidetone" },
1141        { "DAC1R Mixer", "Right Sidetone Switch", "Right Sidetone" },
1142
1143        /* DAC2/AIF2 outputs */
1144        { "DAC2L", NULL, "AIF2DAC2L Mixer" },
1145        { "AIF2DAC2L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
1146        { "AIF2DAC2L Mixer", "AIF1.1 Switch", "AIF1DAC1L" },
1147
1148        { "DAC2R", NULL, "AIF2DAC2R Mixer" },
1149        { "AIF2DAC2R Mixer", "AIF1.2 Switch", "AIF1DAC2R" },
1150        { "AIF2DAC2R Mixer", "AIF1.1 Switch", "AIF1DAC1R" },
1151
1152        /* Output stages */
1153        { "Headphone PGA", NULL, "DAC1L" },
1154        { "Headphone PGA", NULL, "DAC1R" },
1155
1156        { "Headphone PGA", NULL, "DAC2L" },
1157        { "Headphone PGA", NULL, "DAC2R" },
1158
1159        { "Headphone PGA", NULL, "Headphone Supply" },
1160        { "Headphone PGA", NULL, "CLK_SYS" },
1161        { "Headphone PGA", NULL, "LDO2" },
1162
1163        { "HP1L", NULL, "Headphone PGA" },
1164        { "HP1R", NULL, "Headphone PGA" },
1165
1166        { "SPK1L Driver", "DAC1L", "DAC1L" },
1167        { "SPK1L Driver", "DAC1R", "DAC1R" },
1168        { "SPK1L Driver", "DAC2L", "DAC2L" },
1169        { "SPK1L Driver", "DAC2R", "DAC2R" },
1170        { "SPK1L Driver", NULL, "CLK_SYS" },
1171
1172        { "SPK1R Driver", "DAC1L", "DAC1L" },
1173        { "SPK1R Driver", "DAC1R", "DAC1R" },
1174        { "SPK1R Driver", "DAC2L", "DAC2L" },
1175        { "SPK1R Driver", "DAC2R", "DAC2R" },
1176        { "SPK1R Driver", NULL, "CLK_SYS" },
1177
1178        { "SPK2L Driver", "DAC1L", "DAC1L" },
1179        { "SPK2L Driver", "DAC1R", "DAC1R" },
1180        { "SPK2L Driver", "DAC2L", "DAC2L" },
1181        { "SPK2L Driver", "DAC2R", "DAC2R" },
1182        { "SPK2L Driver", NULL, "CLK_SYS" },
1183
1184        { "SPK2R Driver", "DAC1L", "DAC1L" },
1185        { "SPK2R Driver", "DAC1R", "DAC1R" },
1186        { "SPK2R Driver", "DAC2L", "DAC2L" },
1187        { "SPK2R Driver", "DAC2R", "DAC2R" },
1188        { "SPK2R Driver", NULL, "CLK_SYS" },
1189
1190        { "SPK1L", NULL, "SPK1L Driver" },
1191        { "SPK1R", NULL, "SPK1R Driver" },
1192        { "SPK2L", NULL, "SPK2L Driver" },
1193        { "SPK2R", NULL, "SPK2R Driver" }
1194};
1195
1196static bool wm8995_readable(struct device *dev, unsigned int reg)
1197{
1198        switch (reg) {
1199        case WM8995_SOFTWARE_RESET:
1200        case WM8995_POWER_MANAGEMENT_1:
1201        case WM8995_POWER_MANAGEMENT_2:
1202        case WM8995_POWER_MANAGEMENT_3:
1203        case WM8995_POWER_MANAGEMENT_4:
1204        case WM8995_POWER_MANAGEMENT_5:
1205        case WM8995_LEFT_LINE_INPUT_1_VOLUME:
1206        case WM8995_RIGHT_LINE_INPUT_1_VOLUME:
1207        case WM8995_LEFT_LINE_INPUT_CONTROL:
1208        case WM8995_DAC1_LEFT_VOLUME:
1209        case WM8995_DAC1_RIGHT_VOLUME:
1210        case WM8995_DAC2_LEFT_VOLUME:
1211        case WM8995_DAC2_RIGHT_VOLUME:
1212        case WM8995_OUTPUT_VOLUME_ZC_1:
1213        case WM8995_MICBIAS_1:
1214        case WM8995_MICBIAS_2:
1215        case WM8995_LDO_1:
1216        case WM8995_LDO_2:
1217        case WM8995_ACCESSORY_DETECT_MODE1:
1218        case WM8995_ACCESSORY_DETECT_MODE2:
1219        case WM8995_HEADPHONE_DETECT1:
1220        case WM8995_HEADPHONE_DETECT2:
1221        case WM8995_MIC_DETECT_1:
1222        case WM8995_MIC_DETECT_2:
1223        case WM8995_CHARGE_PUMP_1:
1224        case WM8995_CLASS_W_1:
1225        case WM8995_DC_SERVO_1:
1226        case WM8995_DC_SERVO_2:
1227        case WM8995_DC_SERVO_3:
1228        case WM8995_DC_SERVO_5:
1229        case WM8995_DC_SERVO_6:
1230        case WM8995_DC_SERVO_7:
1231        case WM8995_DC_SERVO_READBACK_0:
1232        case WM8995_ANALOGUE_HP_1:
1233        case WM8995_ANALOGUE_HP_2:
1234        case WM8995_CHIP_REVISION:
1235        case WM8995_CONTROL_INTERFACE_1:
1236        case WM8995_CONTROL_INTERFACE_2:
1237        case WM8995_WRITE_SEQUENCER_CTRL_1:
1238        case WM8995_WRITE_SEQUENCER_CTRL_2:
1239        case WM8995_AIF1_CLOCKING_1:
1240        case WM8995_AIF1_CLOCKING_2:
1241        case WM8995_AIF2_CLOCKING_1:
1242        case WM8995_AIF2_CLOCKING_2:
1243        case WM8995_CLOCKING_1:
1244        case WM8995_CLOCKING_2:
1245        case WM8995_AIF1_RATE:
1246        case WM8995_AIF2_RATE:
1247        case WM8995_RATE_STATUS:
1248        case WM8995_FLL1_CONTROL_1:
1249        case WM8995_FLL1_CONTROL_2:
1250        case WM8995_FLL1_CONTROL_3:
1251        case WM8995_FLL1_CONTROL_4:
1252        case WM8995_FLL1_CONTROL_5:
1253        case WM8995_FLL2_CONTROL_1:
1254        case WM8995_FLL2_CONTROL_2:
1255        case WM8995_FLL2_CONTROL_3:
1256        case WM8995_FLL2_CONTROL_4:
1257        case WM8995_FLL2_CONTROL_5:
1258        case WM8995_AIF1_CONTROL_1:
1259        case WM8995_AIF1_CONTROL_2:
1260        case WM8995_AIF1_MASTER_SLAVE:
1261        case WM8995_AIF1_BCLK:
1262        case WM8995_AIF1ADC_LRCLK:
1263        case WM8995_AIF1DAC_LRCLK:
1264        case WM8995_AIF1DAC_DATA:
1265        case WM8995_AIF1ADC_DATA:
1266        case WM8995_AIF2_CONTROL_1:
1267        case WM8995_AIF2_CONTROL_2:
1268        case WM8995_AIF2_MASTER_SLAVE:
1269        case WM8995_AIF2_BCLK:
1270        case WM8995_AIF2ADC_LRCLK:
1271        case WM8995_AIF2DAC_LRCLK:
1272        case WM8995_AIF2DAC_DATA:
1273        case WM8995_AIF2ADC_DATA:
1274        case WM8995_AIF1_ADC1_LEFT_VOLUME:
1275        case WM8995_AIF1_ADC1_RIGHT_VOLUME:
1276        case WM8995_AIF1_DAC1_LEFT_VOLUME:
1277        case WM8995_AIF1_DAC1_RIGHT_VOLUME:
1278        case WM8995_AIF1_ADC2_LEFT_VOLUME:
1279        case WM8995_AIF1_ADC2_RIGHT_VOLUME:
1280        case WM8995_AIF1_DAC2_LEFT_VOLUME:
1281        case WM8995_AIF1_DAC2_RIGHT_VOLUME:
1282        case WM8995_AIF1_ADC1_FILTERS:
1283        case WM8995_AIF1_ADC2_FILTERS:
1284        case WM8995_AIF1_DAC1_FILTERS_1:
1285        case WM8995_AIF1_DAC1_FILTERS_2:
1286        case WM8995_AIF1_DAC2_FILTERS_1:
1287        case WM8995_AIF1_DAC2_FILTERS_2:
1288        case WM8995_AIF1_DRC1_1:
1289        case WM8995_AIF1_DRC1_2:
1290        case WM8995_AIF1_DRC1_3:
1291        case WM8995_AIF1_DRC1_4:
1292        case WM8995_AIF1_DRC1_5:
1293        case WM8995_AIF1_DRC2_1:
1294        case WM8995_AIF1_DRC2_2:
1295        case WM8995_AIF1_DRC2_3:
1296        case WM8995_AIF1_DRC2_4:
1297        case WM8995_AIF1_DRC2_5:
1298        case WM8995_AIF1_DAC1_EQ_GAINS_1:
1299        case WM8995_AIF1_DAC1_EQ_GAINS_2:
1300        case WM8995_AIF1_DAC1_EQ_BAND_1_A:
1301        case WM8995_AIF1_DAC1_EQ_BAND_1_B:
1302        case WM8995_AIF1_DAC1_EQ_BAND_1_PG:
1303        case WM8995_AIF1_DAC1_EQ_BAND_2_A:
1304        case WM8995_AIF1_DAC1_EQ_BAND_2_B:
1305        case WM8995_AIF1_DAC1_EQ_BAND_2_C:
1306        case WM8995_AIF1_DAC1_EQ_BAND_2_PG:
1307        case WM8995_AIF1_DAC1_EQ_BAND_3_A:
1308        case WM8995_AIF1_DAC1_EQ_BAND_3_B:
1309        case WM8995_AIF1_DAC1_EQ_BAND_3_C:
1310        case WM8995_AIF1_DAC1_EQ_BAND_3_PG:
1311        case WM8995_AIF1_DAC1_EQ_BAND_4_A:
1312        case WM8995_AIF1_DAC1_EQ_BAND_4_B:
1313        case WM8995_AIF1_DAC1_EQ_BAND_4_C:
1314        case WM8995_AIF1_DAC1_EQ_BAND_4_PG:
1315        case WM8995_AIF1_DAC1_EQ_BAND_5_A:
1316        case WM8995_AIF1_DAC1_EQ_BAND_5_B:
1317        case WM8995_AIF1_DAC1_EQ_BAND_5_PG:
1318        case WM8995_AIF1_DAC2_EQ_GAINS_1:
1319        case WM8995_AIF1_DAC2_EQ_GAINS_2:
1320        case WM8995_AIF1_DAC2_EQ_BAND_1_A:
1321        case WM8995_AIF1_DAC2_EQ_BAND_1_B:
1322        case WM8995_AIF1_DAC2_EQ_BAND_1_PG:
1323        case WM8995_AIF1_DAC2_EQ_BAND_2_A:
1324        case WM8995_AIF1_DAC2_EQ_BAND_2_B:
1325        case WM8995_AIF1_DAC2_EQ_BAND_2_C:
1326        case WM8995_AIF1_DAC2_EQ_BAND_2_PG:
1327        case WM8995_AIF1_DAC2_EQ_BAND_3_A:
1328        case WM8995_AIF1_DAC2_EQ_BAND_3_B:
1329        case WM8995_AIF1_DAC2_EQ_BAND_3_C:
1330        case WM8995_AIF1_DAC2_EQ_BAND_3_PG:
1331        case WM8995_AIF1_DAC2_EQ_BAND_4_A:
1332        case WM8995_AIF1_DAC2_EQ_BAND_4_B:
1333        case WM8995_AIF1_DAC2_EQ_BAND_4_C:
1334        case WM8995_AIF1_DAC2_EQ_BAND_4_PG:
1335        case WM8995_AIF1_DAC2_EQ_BAND_5_A:
1336        case WM8995_AIF1_DAC2_EQ_BAND_5_B:
1337        case WM8995_AIF1_DAC2_EQ_BAND_5_PG:
1338        case WM8995_AIF2_ADC_LEFT_VOLUME:
1339        case WM8995_AIF2_ADC_RIGHT_VOLUME:
1340        case WM8995_AIF2_DAC_LEFT_VOLUME:
1341        case WM8995_AIF2_DAC_RIGHT_VOLUME:
1342        case WM8995_AIF2_ADC_FILTERS:
1343        case WM8995_AIF2_DAC_FILTERS_1:
1344        case WM8995_AIF2_DAC_FILTERS_2:
1345        case WM8995_AIF2_DRC_1:
1346        case WM8995_AIF2_DRC_2:
1347        case WM8995_AIF2_DRC_3:
1348        case WM8995_AIF2_DRC_4:
1349        case WM8995_AIF2_DRC_5:
1350        case WM8995_AIF2_EQ_GAINS_1:
1351        case WM8995_AIF2_EQ_GAINS_2:
1352        case WM8995_AIF2_EQ_BAND_1_A:
1353        case WM8995_AIF2_EQ_BAND_1_B:
1354        case WM8995_AIF2_EQ_BAND_1_PG:
1355        case WM8995_AIF2_EQ_BAND_2_A:
1356        case WM8995_AIF2_EQ_BAND_2_B:
1357        case WM8995_AIF2_EQ_BAND_2_C:
1358        case WM8995_AIF2_EQ_BAND_2_PG:
1359        case WM8995_AIF2_EQ_BAND_3_A:
1360        case WM8995_AIF2_EQ_BAND_3_B:
1361        case WM8995_AIF2_EQ_BAND_3_C:
1362        case WM8995_AIF2_EQ_BAND_3_PG:
1363        case WM8995_AIF2_EQ_BAND_4_A:
1364        case WM8995_AIF2_EQ_BAND_4_B:
1365        case WM8995_AIF2_EQ_BAND_4_C:
1366        case WM8995_AIF2_EQ_BAND_4_PG:
1367        case WM8995_AIF2_EQ_BAND_5_A:
1368        case WM8995_AIF2_EQ_BAND_5_B:
1369        case WM8995_AIF2_EQ_BAND_5_PG:
1370        case WM8995_DAC1_MIXER_VOLUMES:
1371        case WM8995_DAC1_LEFT_MIXER_ROUTING:
1372        case WM8995_DAC1_RIGHT_MIXER_ROUTING:
1373        case WM8995_DAC2_MIXER_VOLUMES:
1374        case WM8995_DAC2_LEFT_MIXER_ROUTING:
1375        case WM8995_DAC2_RIGHT_MIXER_ROUTING:
1376        case WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING:
1377        case WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING:
1378        case WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING:
1379        case WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING:
1380        case WM8995_DAC_SOFTMUTE:
1381        case WM8995_OVERSAMPLING:
1382        case WM8995_SIDETONE:
1383        case WM8995_GPIO_1:
1384        case WM8995_GPIO_2:
1385        case WM8995_GPIO_3:
1386        case WM8995_GPIO_4:
1387        case WM8995_GPIO_5:
1388        case WM8995_GPIO_6:
1389        case WM8995_GPIO_7:
1390        case WM8995_GPIO_8:
1391        case WM8995_GPIO_9:
1392        case WM8995_GPIO_10:
1393        case WM8995_GPIO_11:
1394        case WM8995_GPIO_12:
1395        case WM8995_GPIO_13:
1396        case WM8995_GPIO_14:
1397        case WM8995_PULL_CONTROL_1:
1398        case WM8995_PULL_CONTROL_2:
1399        case WM8995_INTERRUPT_STATUS_1:
1400        case WM8995_INTERRUPT_STATUS_2:
1401        case WM8995_INTERRUPT_RAW_STATUS_2:
1402        case WM8995_INTERRUPT_STATUS_1_MASK:
1403        case WM8995_INTERRUPT_STATUS_2_MASK:
1404        case WM8995_INTERRUPT_CONTROL:
1405        case WM8995_LEFT_PDM_SPEAKER_1:
1406        case WM8995_RIGHT_PDM_SPEAKER_1:
1407        case WM8995_PDM_SPEAKER_1_MUTE_SEQUENCE:
1408        case WM8995_LEFT_PDM_SPEAKER_2:
1409        case WM8995_RIGHT_PDM_SPEAKER_2:
1410        case WM8995_PDM_SPEAKER_2_MUTE_SEQUENCE:
1411                return true;
1412        default:
1413                return false;
1414        }
1415}
1416
1417static bool wm8995_volatile(struct device *dev, unsigned int reg)
1418{
1419        switch (reg) {
1420        case WM8995_SOFTWARE_RESET:
1421        case WM8995_DC_SERVO_READBACK_0:
1422        case WM8995_INTERRUPT_STATUS_1:
1423        case WM8995_INTERRUPT_STATUS_2:
1424        case WM8995_INTERRUPT_CONTROL:
1425        case WM8995_ACCESSORY_DETECT_MODE1:
1426        case WM8995_ACCESSORY_DETECT_MODE2:
1427        case WM8995_HEADPHONE_DETECT1:
1428        case WM8995_HEADPHONE_DETECT2:
1429        case WM8995_RATE_STATUS:
1430                return true;
1431        default:
1432                return false;
1433        }
1434}
1435
1436static int wm8995_aif_mute(struct snd_soc_dai *dai, int mute)
1437{
1438        struct snd_soc_codec *codec = dai->codec;
1439        int mute_reg;
1440
1441        switch (dai->id) {
1442        case 0:
1443                mute_reg = WM8995_AIF1_DAC1_FILTERS_1;
1444                break;
1445        case 1:
1446                mute_reg = WM8995_AIF2_DAC_FILTERS_1;
1447                break;
1448        default:
1449                return -EINVAL;
1450        }
1451
1452        snd_soc_update_bits(codec, mute_reg, WM8995_AIF1DAC1_MUTE_MASK,
1453                            !!mute << WM8995_AIF1DAC1_MUTE_SHIFT);
1454        return 0;
1455}
1456
1457static int wm8995_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1458{
1459        struct snd_soc_codec *codec;
1460        int master;
1461        int aif;
1462
1463        codec = dai->codec;
1464
1465        master = 0;
1466        switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1467        case SND_SOC_DAIFMT_CBS_CFS:
1468                break;
1469        case SND_SOC_DAIFMT_CBM_CFM:
1470                master = WM8995_AIF1_MSTR;
1471                break;
1472        default:
1473                dev_err(dai->dev, "Unknown master/slave configuration\n");
1474                return -EINVAL;
1475        }
1476
1477        aif = 0;
1478        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1479        case SND_SOC_DAIFMT_DSP_B:
1480                aif |= WM8995_AIF1_LRCLK_INV;
1481        case SND_SOC_DAIFMT_DSP_A:
1482                aif |= (0x3 << WM8995_AIF1_FMT_SHIFT);
1483                break;
1484        case SND_SOC_DAIFMT_I2S:
1485                aif |= (0x2 << WM8995_AIF1_FMT_SHIFT);
1486                break;
1487        case SND_SOC_DAIFMT_RIGHT_J:
1488                break;
1489        case SND_SOC_DAIFMT_LEFT_J:
1490                aif |= (0x1 << WM8995_AIF1_FMT_SHIFT);
1491                break;
1492        default:
1493                dev_err(dai->dev, "Unknown dai format\n");
1494                return -EINVAL;
1495        }
1496
1497        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1498        case SND_SOC_DAIFMT_DSP_A:
1499        case SND_SOC_DAIFMT_DSP_B:
1500                /* frame inversion not valid for DSP modes */
1501                switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1502                case SND_SOC_DAIFMT_NB_NF:
1503                        break;
1504                case SND_SOC_DAIFMT_IB_NF:
1505                        aif |= WM8995_AIF1_BCLK_INV;
1506                        break;
1507                default:
1508                        return -EINVAL;
1509                }
1510                break;
1511
1512        case SND_SOC_DAIFMT_I2S:
1513        case SND_SOC_DAIFMT_RIGHT_J:
1514        case SND_SOC_DAIFMT_LEFT_J:
1515                switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1516                case SND_SOC_DAIFMT_NB_NF:
1517                        break;
1518                case SND_SOC_DAIFMT_IB_IF:
1519                        aif |= WM8995_AIF1_BCLK_INV | WM8995_AIF1_LRCLK_INV;
1520                        break;
1521                case SND_SOC_DAIFMT_IB_NF:
1522                        aif |= WM8995_AIF1_BCLK_INV;
1523                        break;
1524                case SND_SOC_DAIFMT_NB_IF:
1525                        aif |= WM8995_AIF1_LRCLK_INV;
1526                        break;
1527                default:
1528                        return -EINVAL;
1529                }
1530                break;
1531        default:
1532                return -EINVAL;
1533        }
1534
1535        snd_soc_update_bits(codec, WM8995_AIF1_CONTROL_1,
1536                            WM8995_AIF1_BCLK_INV_MASK |
1537                            WM8995_AIF1_LRCLK_INV_MASK |
1538                            WM8995_AIF1_FMT_MASK, aif);
1539        snd_soc_update_bits(codec, WM8995_AIF1_MASTER_SLAVE,
1540                            WM8995_AIF1_MSTR_MASK, master);
1541        return 0;
1542}
1543
1544static const int srs[] = {
1545        8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100,
1546        48000, 88200, 96000
1547};
1548
1549static const int fs_ratios[] = {
1550        -1 /* reserved */,
1551        128, 192, 256, 384, 512, 768, 1024, 1408, 1536
1552};
1553
1554static const int bclk_divs[] = {
1555        10, 15, 20, 30, 40, 55, 60, 80, 110, 120, 160, 220, 240, 320, 440, 480
1556};
1557
1558static int wm8995_hw_params(struct snd_pcm_substream *substream,
1559                            struct snd_pcm_hw_params *params,
1560                            struct snd_soc_dai *dai)
1561{
1562        struct snd_soc_codec *codec;
1563        struct wm8995_priv *wm8995;
1564        int aif1_reg;
1565        int bclk_reg;
1566        int lrclk_reg;
1567        int rate_reg;
1568        int bclk_rate;
1569        int aif1;
1570        int lrclk, bclk;
1571        int i, rate_val, best, best_val, cur_val;
1572
1573        codec = dai->codec;
1574        wm8995 = snd_soc_codec_get_drvdata(codec);
1575
1576        switch (dai->id) {
1577        case 0:
1578                aif1_reg = WM8995_AIF1_CONTROL_1;
1579                bclk_reg = WM8995_AIF1_BCLK;
1580                rate_reg = WM8995_AIF1_RATE;
1581                if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* ||
1582                        wm8995->lrclk_shared[0] */) {
1583                        lrclk_reg = WM8995_AIF1DAC_LRCLK;
1584                } else {
1585                        lrclk_reg = WM8995_AIF1ADC_LRCLK;
1586                        dev_dbg(codec->dev, "AIF1 using split LRCLK\n");
1587                }
1588                break;
1589        case 1:
1590                aif1_reg = WM8995_AIF2_CONTROL_1;
1591                bclk_reg = WM8995_AIF2_BCLK;
1592                rate_reg = WM8995_AIF2_RATE;
1593                if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* ||
1594                    wm8995->lrclk_shared[1] */) {
1595                        lrclk_reg = WM8995_AIF2DAC_LRCLK;
1596                } else {
1597                        lrclk_reg = WM8995_AIF2ADC_LRCLK;
1598                        dev_dbg(codec->dev, "AIF2 using split LRCLK\n");
1599                }
1600                break;
1601        default:
1602                return -EINVAL;
1603        }
1604
1605        bclk_rate = snd_soc_params_to_bclk(params);
1606        if (bclk_rate < 0)
1607                return bclk_rate;
1608
1609        aif1 = 0;
1610        switch (params_format(params)) {
1611        case SNDRV_PCM_FORMAT_S16_LE:
1612                break;
1613        case SNDRV_PCM_FORMAT_S20_3LE:
1614                aif1 |= (0x1 << WM8995_AIF1_WL_SHIFT);
1615                break;
1616        case SNDRV_PCM_FORMAT_S24_LE:
1617                aif1 |= (0x2 << WM8995_AIF1_WL_SHIFT);
1618                break;
1619        case SNDRV_PCM_FORMAT_S32_LE:
1620                aif1 |= (0x3 << WM8995_AIF1_WL_SHIFT);
1621                break;
1622        default:
1623                dev_err(dai->dev, "Unsupported word length %u\n",
1624                        params_format(params));
1625                return -EINVAL;
1626        }
1627
1628        /* try to find a suitable sample rate */
1629        for (i = 0; i < ARRAY_SIZE(srs); ++i)
1630                if (srs[i] == params_rate(params))
1631                        break;
1632        if (i == ARRAY_SIZE(srs)) {
1633                dev_err(dai->dev, "Sample rate %d is not supported\n",
1634                        params_rate(params));
1635                return -EINVAL;
1636        }
1637        rate_val = i << WM8995_AIF1_SR_SHIFT;
1638
1639        dev_dbg(dai->dev, "Sample rate is %dHz\n", srs[i]);
1640        dev_dbg(dai->dev, "AIF%dCLK is %dHz, target BCLK %dHz\n",
1641                dai->id + 1, wm8995->aifclk[dai->id], bclk_rate);
1642
1643        /* AIFCLK/fs ratio; look for a close match in either direction */
1644        best = 1;
1645        best_val = abs((fs_ratios[1] * params_rate(params))
1646                       - wm8995->aifclk[dai->id]);
1647        for (i = 2; i < ARRAY_SIZE(fs_ratios); i++) {
1648                cur_val = abs((fs_ratios[i] * params_rate(params))
1649                              - wm8995->aifclk[dai->id]);
1650                if (cur_val >= best_val)
1651                        continue;
1652                best = i;
1653                best_val = cur_val;
1654        }
1655        rate_val |= best;
1656
1657        dev_dbg(dai->dev, "Selected AIF%dCLK/fs = %d\n",
1658                dai->id + 1, fs_ratios[best]);
1659
1660        /*
1661         * We may not get quite the right frequency if using
1662         * approximate clocks so look for the closest match that is
1663         * higher than the target (we need to ensure that there enough
1664         * BCLKs to clock out the samples).
1665         */
1666        best = 0;
1667        bclk = 0;
1668        for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
1669                cur_val = (wm8995->aifclk[dai->id] * 10 / bclk_divs[i]) - bclk_rate;
1670                if (cur_val < 0) /* BCLK table is sorted */
1671                        break;
1672                best = i;
1673        }
1674        bclk |= best << WM8995_AIF1_BCLK_DIV_SHIFT;
1675
1676        bclk_rate = wm8995->aifclk[dai->id] * 10 / bclk_divs[best];
1677        dev_dbg(dai->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n",
1678                bclk_divs[best], bclk_rate);
1679
1680        lrclk = bclk_rate / params_rate(params);
1681        dev_dbg(dai->dev, "Using LRCLK rate %d for actual LRCLK %dHz\n",
1682                lrclk, bclk_rate / lrclk);
1683
1684        snd_soc_update_bits(codec, aif1_reg,
1685                            WM8995_AIF1_WL_MASK, aif1);
1686        snd_soc_update_bits(codec, bclk_reg,
1687                            WM8995_AIF1_BCLK_DIV_MASK, bclk);
1688        snd_soc_update_bits(codec, lrclk_reg,
1689                            WM8995_AIF1DAC_RATE_MASK, lrclk);
1690        snd_soc_update_bits(codec, rate_reg,
1691                            WM8995_AIF1_SR_MASK |
1692                            WM8995_AIF1CLK_RATE_MASK, rate_val);
1693        return 0;
1694}
1695
1696static int wm8995_set_tristate(struct snd_soc_dai *codec_dai, int tristate)
1697{
1698        struct snd_soc_codec *codec = codec_dai->codec;
1699        int reg, val, mask;
1700
1701        switch (codec_dai->id) {
1702        case 0:
1703                reg = WM8995_AIF1_MASTER_SLAVE;
1704                mask = WM8995_AIF1_TRI;
1705                break;
1706        case 1:
1707                reg = WM8995_AIF2_MASTER_SLAVE;
1708                mask = WM8995_AIF2_TRI;
1709                break;
1710        case 2:
1711                reg = WM8995_POWER_MANAGEMENT_5;
1712                mask = WM8995_AIF3_TRI;
1713                break;
1714        default:
1715                return -EINVAL;
1716        }
1717
1718        if (tristate)
1719                val = mask;
1720        else
1721                val = 0;
1722
1723        return snd_soc_update_bits(codec, reg, mask, val);
1724}
1725
1726/* The size in bits of the FLL divide multiplied by 10
1727 * to allow rounding later */
1728#define FIXED_FLL_SIZE ((1 << 16) * 10)
1729
1730struct fll_div {
1731        u16 outdiv;
1732        u16 n;
1733        u16 k;
1734        u16 clk_ref_div;
1735        u16 fll_fratio;
1736};
1737
1738static int wm8995_get_fll_config(struct fll_div *fll,
1739                                 int freq_in, int freq_out)
1740{
1741        u64 Kpart;
1742        unsigned int K, Ndiv, Nmod;
1743
1744        pr_debug("FLL input=%dHz, output=%dHz\n", freq_in, freq_out);
1745
1746        /* Scale the input frequency down to <= 13.5MHz */
1747        fll->clk_ref_div = 0;
1748        while (freq_in > 13500000) {
1749                fll->clk_ref_div++;
1750                freq_in /= 2;
1751
1752                if (fll->clk_ref_div > 3)
1753                        return -EINVAL;
1754        }
1755        pr_debug("CLK_REF_DIV=%d, Fref=%dHz\n", fll->clk_ref_div, freq_in);
1756
1757        /* Scale the output to give 90MHz<=Fvco<=100MHz */
1758        fll->outdiv = 3;
1759        while (freq_out * (fll->outdiv + 1) < 90000000) {
1760                fll->outdiv++;
1761                if (fll->outdiv > 63)
1762                        return -EINVAL;
1763        }
1764        freq_out *= fll->outdiv + 1;
1765        pr_debug("OUTDIV=%d, Fvco=%dHz\n", fll->outdiv, freq_out);
1766
1767        if (freq_in > 1000000) {
1768                fll->fll_fratio = 0;
1769        } else if (freq_in > 256000) {
1770                fll->fll_fratio = 1;
1771                freq_in *= 2;
1772        } else if (freq_in > 128000) {
1773                fll->fll_fratio = 2;
1774                freq_in *= 4;
1775        } else if (freq_in > 64000) {
1776                fll->fll_fratio = 3;
1777                freq_in *= 8;
1778        } else {
1779                fll->fll_fratio = 4;
1780                freq_in *= 16;
1781        }
1782        pr_debug("FLL_FRATIO=%d, Fref=%dHz\n", fll->fll_fratio, freq_in);
1783
1784        /* Now, calculate N.K */
1785        Ndiv = freq_out / freq_in;
1786
1787        fll->n = Ndiv;
1788        Nmod = freq_out % freq_in;
1789        pr_debug("Nmod=%d\n", Nmod);
1790
1791        /* Calculate fractional part - scale up so we can round. */
1792        Kpart = FIXED_FLL_SIZE * (long long)Nmod;
1793
1794        do_div(Kpart, freq_in);
1795
1796        K = Kpart & 0xFFFFFFFF;
1797
1798        if ((K % 10) >= 5)
1799                K += 5;
1800
1801        /* Move down to proper range now rounding is done */
1802        fll->k = K / 10;
1803
1804        pr_debug("N=%x K=%x\n", fll->n, fll->k);
1805
1806        return 0;
1807}
1808
1809static int wm8995_set_fll(struct snd_soc_dai *dai, int id,
1810                          int src, unsigned int freq_in,
1811                          unsigned int freq_out)
1812{
1813        struct snd_soc_codec *codec;
1814        struct wm8995_priv *wm8995;
1815        int reg_offset, ret;
1816        struct fll_div fll;
1817        u16 reg, aif1, aif2;
1818
1819        codec = dai->codec;
1820        wm8995 = snd_soc_codec_get_drvdata(codec);
1821
1822        aif1 = snd_soc_read(codec, WM8995_AIF1_CLOCKING_1)
1823               & WM8995_AIF1CLK_ENA;
1824
1825        aif2 = snd_soc_read(codec, WM8995_AIF2_CLOCKING_1)
1826               & WM8995_AIF2CLK_ENA;
1827
1828        switch (id) {
1829        case WM8995_FLL1:
1830                reg_offset = 0;
1831                id = 0;
1832                break;
1833        case WM8995_FLL2:
1834                reg_offset = 0x20;
1835                id = 1;
1836                break;
1837        default:
1838                return -EINVAL;
1839        }
1840
1841        switch (src) {
1842        case 0:
1843                /* Allow no source specification when stopping */
1844                if (freq_out)
1845                        return -EINVAL;
1846                break;
1847        case WM8995_FLL_SRC_MCLK1:
1848        case WM8995_FLL_SRC_MCLK2:
1849        case WM8995_FLL_SRC_LRCLK:
1850        case WM8995_FLL_SRC_BCLK:
1851                break;
1852        default:
1853                return -EINVAL;
1854        }
1855
1856        /* Are we changing anything? */
1857        if (wm8995->fll[id].src == src &&
1858            wm8995->fll[id].in == freq_in && wm8995->fll[id].out == freq_out)
1859                return 0;
1860
1861        /* If we're stopping the FLL redo the old config - no
1862         * registers will actually be written but we avoid GCC flow
1863         * analysis bugs spewing warnings.
1864         */
1865        if (freq_out)
1866                ret = wm8995_get_fll_config(&fll, freq_in, freq_out);
1867        else
1868                ret = wm8995_get_fll_config(&fll, wm8995->fll[id].in,
1869                                            wm8995->fll[id].out);
1870        if (ret < 0)
1871                return ret;
1872
1873        /* Gate the AIF clocks while we reclock */
1874        snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1,
1875                            WM8995_AIF1CLK_ENA_MASK, 0);
1876        snd_soc_update_bits(codec, WM8995_AIF2_CLOCKING_1,
1877                            WM8995_AIF2CLK_ENA_MASK, 0);
1878
1879        /* We always need to disable the FLL while reconfiguring */
1880        snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_1 + reg_offset,
1881                            WM8995_FLL1_ENA_MASK, 0);
1882
1883        reg = (fll.outdiv << WM8995_FLL1_OUTDIV_SHIFT) |
1884              (fll.fll_fratio << WM8995_FLL1_FRATIO_SHIFT);
1885        snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_2 + reg_offset,
1886                            WM8995_FLL1_OUTDIV_MASK |
1887                            WM8995_FLL1_FRATIO_MASK, reg);
1888
1889        snd_soc_write(codec, WM8995_FLL1_CONTROL_3 + reg_offset, fll.k);
1890
1891        snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_4 + reg_offset,
1892                            WM8995_FLL1_N_MASK,
1893                            fll.n << WM8995_FLL1_N_SHIFT);
1894
1895        snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_5 + reg_offset,
1896                            WM8995_FLL1_REFCLK_DIV_MASK |
1897                            WM8995_FLL1_REFCLK_SRC_MASK,
1898                            (fll.clk_ref_div << WM8995_FLL1_REFCLK_DIV_SHIFT) |
1899                            (src - 1));
1900
1901        if (freq_out)
1902                snd_soc_update_bits(codec, WM8995_FLL1_CONTROL_1 + reg_offset,
1903                                    WM8995_FLL1_ENA_MASK, WM8995_FLL1_ENA);
1904
1905        wm8995->fll[id].in = freq_in;
1906        wm8995->fll[id].out = freq_out;
1907        wm8995->fll[id].src = src;
1908
1909        /* Enable any gated AIF clocks */
1910        snd_soc_update_bits(codec, WM8995_AIF1_CLOCKING_1,
1911                            WM8995_AIF1CLK_ENA_MASK, aif1);
1912        snd_soc_update_bits(codec, WM8995_AIF2_CLOCKING_1,
1913                            WM8995_AIF2CLK_ENA_MASK, aif2);
1914
1915        configure_clock(codec);
1916
1917        return 0;
1918}
1919
1920static int wm8995_set_dai_sysclk(struct snd_soc_dai *dai,
1921                                 int clk_id, unsigned int freq, int dir)
1922{
1923        struct snd_soc_codec *codec;
1924        struct wm8995_priv *wm8995;
1925
1926        codec = dai->codec;
1927        wm8995 = snd_soc_codec_get_drvdata(codec);
1928
1929        switch (dai->id) {
1930        case 0:
1931        case 1:
1932                break;
1933        default:
1934                /* AIF3 shares clocking with AIF1/2 */
1935                return -EINVAL;
1936        }
1937
1938        switch (clk_id) {
1939        case WM8995_SYSCLK_MCLK1:
1940                wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1;
1941                wm8995->mclk[0] = freq;
1942                dev_dbg(dai->dev, "AIF%d using MCLK1 at %uHz\n",
1943                        dai->id + 1, freq);
1944                break;
1945        case WM8995_SYSCLK_MCLK2:
1946                wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1;
1947                wm8995->mclk[1] = freq;
1948                dev_dbg(dai->dev, "AIF%d using MCLK2 at %uHz\n",
1949                        dai->id + 1, freq);
1950                break;
1951        case WM8995_SYSCLK_FLL1:
1952                wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL1;
1953                dev_dbg(dai->dev, "AIF%d using FLL1\n", dai->id + 1);
1954                break;
1955        case WM8995_SYSCLK_FLL2:
1956                wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL2;
1957                dev_dbg(dai->dev, "AIF%d using FLL2\n", dai->id + 1);
1958                break;
1959        case WM8995_SYSCLK_OPCLK:
1960        default:
1961                dev_err(dai->dev, "Unknown clock source %d\n", clk_id);
1962                return -EINVAL;
1963        }
1964
1965        configure_clock(codec);
1966
1967        return 0;
1968}
1969
1970static int wm8995_set_bias_level(struct snd_soc_codec *codec,
1971                                 enum snd_soc_bias_level level)
1972{
1973        struct wm8995_priv *wm8995;
1974        int ret;
1975
1976        wm8995 = snd_soc_codec_get_drvdata(codec);
1977        switch (level) {
1978        case SND_SOC_BIAS_ON:
1979        case SND_SOC_BIAS_PREPARE:
1980                break;
1981        case SND_SOC_BIAS_STANDBY:
1982                if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
1983                        ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies),
1984                                                    wm8995->supplies);
1985                        if (ret)
1986                                return ret;
1987
1988                        ret = regcache_sync(wm8995->regmap);
1989                        if (ret) {
1990                                dev_err(codec->dev,
1991                                        "Failed to sync cache: %d\n", ret);
1992                                return ret;
1993                        }
1994
1995                        snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
1996                                            WM8995_BG_ENA_MASK, WM8995_BG_ENA);
1997                }
1998                break;
1999        case SND_SOC_BIAS_OFF:
2000                snd_soc_update_bits(codec, WM8995_POWER_MANAGEMENT_1,
2001                                    WM8995_BG_ENA_MASK, 0);
2002                regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies),
2003                                       wm8995->supplies);
2004                break;
2005        }
2006
2007        codec->dapm.bias_level = level;
2008        return 0;
2009}
2010
2011#ifdef CONFIG_PM
2012static int wm8995_suspend(struct snd_soc_codec *codec)
2013{
2014        wm8995_set_bias_level(codec, SND_SOC_BIAS_OFF);
2015        return 0;
2016}
2017
2018static int wm8995_resume(struct snd_soc_codec *codec)
2019{
2020        wm8995_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
2021        return 0;
2022}
2023#else
2024#define wm8995_suspend NULL
2025#define wm8995_resume NULL
2026#endif
2027
2028static int wm8995_remove(struct snd_soc_codec *codec)
2029{
2030        struct wm8995_priv *wm8995;
2031        int i;
2032
2033        wm8995 = snd_soc_codec_get_drvdata(codec);
2034        wm8995_set_bias_level(codec, SND_SOC_BIAS_OFF);
2035
2036        for (i = 0; i < ARRAY_SIZE(wm8995->supplies); ++i)
2037                regulator_unregister_notifier(wm8995->supplies[i].consumer,
2038                                              &wm8995->disable_nb[i]);
2039
2040        regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2041        return 0;
2042}
2043
2044static int wm8995_probe(struct snd_soc_codec *codec)
2045{
2046        struct wm8995_priv *wm8995;
2047        int i;
2048        int ret;
2049
2050        wm8995 = snd_soc_codec_get_drvdata(codec);
2051        wm8995->codec = codec;
2052
2053        codec->control_data = wm8995->regmap;
2054        ret = snd_soc_codec_set_cache_io(codec, 16, 16, SND_SOC_REGMAP);
2055        if (ret < 0) {
2056                dev_err(codec->dev, "Failed to set cache i/o: %d\n", ret);
2057                return ret;
2058        }
2059
2060        for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++)
2061                wm8995->supplies[i].supply = wm8995_supply_names[i];
2062
2063        ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8995->supplies),
2064                                 wm8995->supplies);
2065        if (ret) {
2066                dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
2067                return ret;
2068        }
2069
2070        wm8995->disable_nb[0].notifier_call = wm8995_regulator_event_0;
2071        wm8995->disable_nb[1].notifier_call = wm8995_regulator_event_1;
2072        wm8995->disable_nb[2].notifier_call = wm8995_regulator_event_2;
2073        wm8995->disable_nb[3].notifier_call = wm8995_regulator_event_3;
2074        wm8995->disable_nb[4].notifier_call = wm8995_regulator_event_4;
2075        wm8995->disable_nb[5].notifier_call = wm8995_regulator_event_5;
2076        wm8995->disable_nb[6].notifier_call = wm8995_regulator_event_6;
2077        wm8995->disable_nb[7].notifier_call = wm8995_regulator_event_7;
2078
2079        /* This should really be moved into the regulator core */
2080        for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++) {
2081                ret = regulator_register_notifier(wm8995->supplies[i].consumer,
2082                                                  &wm8995->disable_nb[i]);
2083                if (ret) {
2084                        dev_err(codec->dev,
2085                                "Failed to register regulator notifier: %d\n",
2086                                ret);
2087                }
2088        }
2089
2090        ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies),
2091                                    wm8995->supplies);
2092        if (ret) {
2093                dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
2094                goto err_reg_get;
2095        }
2096
2097        ret = snd_soc_read(codec, WM8995_SOFTWARE_RESET);
2098        if (ret < 0) {
2099                dev_err(codec->dev, "Failed to read device ID: %d\n", ret);
2100                goto err_reg_enable;
2101        }
2102
2103        if (ret != 0x8995) {
2104                dev_err(codec->dev, "Invalid device ID: %#x\n", ret);
2105                ret = -EINVAL;
2106                goto err_reg_enable;
2107        }
2108
2109        ret = snd_soc_write(codec, WM8995_SOFTWARE_RESET, 0);
2110        if (ret < 0) {
2111                dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
2112                goto err_reg_enable;
2113        }
2114
2115        wm8995_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
2116
2117        /* Latch volume updates (right only; we always do left then right). */
2118        snd_soc_update_bits(codec, WM8995_AIF1_DAC1_RIGHT_VOLUME,
2119                            WM8995_AIF1DAC1_VU_MASK, WM8995_AIF1DAC1_VU);
2120        snd_soc_update_bits(codec, WM8995_AIF1_DAC2_RIGHT_VOLUME,
2121                            WM8995_AIF1DAC2_VU_MASK, WM8995_AIF1DAC2_VU);
2122        snd_soc_update_bits(codec, WM8995_AIF2_DAC_RIGHT_VOLUME,
2123                            WM8995_AIF2DAC_VU_MASK, WM8995_AIF2DAC_VU);
2124        snd_soc_update_bits(codec, WM8995_AIF1_ADC1_RIGHT_VOLUME,
2125                            WM8995_AIF1ADC1_VU_MASK, WM8995_AIF1ADC1_VU);
2126        snd_soc_update_bits(codec, WM8995_AIF1_ADC2_RIGHT_VOLUME,
2127                            WM8995_AIF1ADC2_VU_MASK, WM8995_AIF1ADC2_VU);
2128        snd_soc_update_bits(codec, WM8995_AIF2_ADC_RIGHT_VOLUME,
2129                            WM8995_AIF2ADC_VU_MASK, WM8995_AIF1ADC2_VU);
2130        snd_soc_update_bits(codec, WM8995_DAC1_RIGHT_VOLUME,
2131                            WM8995_DAC1_VU_MASK, WM8995_DAC1_VU);
2132        snd_soc_update_bits(codec, WM8995_DAC2_RIGHT_VOLUME,
2133                            WM8995_DAC2_VU_MASK, WM8995_DAC2_VU);
2134        snd_soc_update_bits(codec, WM8995_RIGHT_LINE_INPUT_1_VOLUME,
2135                            WM8995_IN1_VU_MASK, WM8995_IN1_VU);
2136
2137        wm8995_update_class_w(codec);
2138
2139        snd_soc_add_codec_controls(codec, wm8995_snd_controls,
2140                             ARRAY_SIZE(wm8995_snd_controls));
2141        snd_soc_dapm_new_controls(&codec->dapm, wm8995_dapm_widgets,
2142                                  ARRAY_SIZE(wm8995_dapm_widgets));
2143        snd_soc_dapm_add_routes(&codec->dapm, wm8995_intercon,
2144                                ARRAY_SIZE(wm8995_intercon));
2145
2146        return 0;
2147
2148err_reg_enable:
2149        regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2150err_reg_get:
2151        regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2152        return ret;
2153}
2154
2155#define WM8995_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
2156                        SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
2157
2158static const struct snd_soc_dai_ops wm8995_aif1_dai_ops = {
2159        .set_sysclk = wm8995_set_dai_sysclk,
2160        .set_fmt = wm8995_set_dai_fmt,
2161        .hw_params = wm8995_hw_params,
2162        .digital_mute = wm8995_aif_mute,
2163        .set_pll = wm8995_set_fll,
2164        .set_tristate = wm8995_set_tristate,
2165};
2166
2167static const struct snd_soc_dai_ops wm8995_aif2_dai_ops = {
2168        .set_sysclk = wm8995_set_dai_sysclk,
2169        .set_fmt = wm8995_set_dai_fmt,
2170        .hw_params = wm8995_hw_params,
2171        .digital_mute = wm8995_aif_mute,
2172        .set_pll = wm8995_set_fll,
2173        .set_tristate = wm8995_set_tristate,
2174};
2175
2176static const struct snd_soc_dai_ops wm8995_aif3_dai_ops = {
2177        .set_tristate = wm8995_set_tristate,
2178};
2179
2180static struct snd_soc_dai_driver wm8995_dai[] = {
2181        {
2182                .name = "wm8995-aif1",
2183                .playback = {
2184                        .stream_name = "AIF1 Playback",
2185                        .channels_min = 2,
2186                        .channels_max = 2,
2187                        .rates = SNDRV_PCM_RATE_8000_96000,
2188                        .formats = WM8995_FORMATS
2189                },
2190                .capture = {
2191                        .stream_name = "AIF1 Capture",
2192                        .channels_min = 2,
2193                        .channels_max = 2,
2194                        .rates = SNDRV_PCM_RATE_8000_48000,
2195                        .formats = WM8995_FORMATS
2196                },
2197                .ops = &wm8995_aif1_dai_ops
2198        },
2199        {
2200                .name = "wm8995-aif2",
2201                .playback = {
2202                        .stream_name = "AIF2 Playback",
2203                        .channels_min = 2,
2204                        .channels_max = 2,
2205                        .rates = SNDRV_PCM_RATE_8000_96000,
2206                        .formats = WM8995_FORMATS
2207                },
2208                .capture = {
2209                        .stream_name = "AIF2 Capture",
2210                        .channels_min = 2,
2211                        .channels_max = 2,
2212                        .rates = SNDRV_PCM_RATE_8000_48000,
2213                        .formats = WM8995_FORMATS
2214                },
2215                .ops = &wm8995_aif2_dai_ops
2216        },
2217        {
2218                .name = "wm8995-aif3",
2219                .playback = {
2220                        .stream_name = "AIF3 Playback",
2221                        .channels_min = 2,
2222                        .channels_max = 2,
2223                        .rates = SNDRV_PCM_RATE_8000_96000,
2224                        .formats = WM8995_FORMATS
2225                },
2226                .capture = {
2227                        .stream_name = "AIF3 Capture",
2228                        .channels_min = 2,
2229                        .channels_max = 2,
2230                        .rates = SNDRV_PCM_RATE_8000_48000,
2231                        .formats = WM8995_FORMATS
2232                },
2233                .ops = &wm8995_aif3_dai_ops
2234        }
2235};
2236
2237static struct snd_soc_codec_driver soc_codec_dev_wm8995 = {
2238        .probe = wm8995_probe,
2239        .remove = wm8995_remove,
2240        .suspend = wm8995_suspend,
2241        .resume = wm8995_resume,
2242        .set_bias_level = wm8995_set_bias_level,
2243        .idle_bias_off = true,
2244};
2245
2246static struct regmap_config wm8995_regmap = {
2247        .reg_bits = 16,
2248        .val_bits = 16,
2249
2250        .max_register = WM8995_MAX_REGISTER,
2251        .reg_defaults = wm8995_reg_defaults,
2252        .num_reg_defaults = ARRAY_SIZE(wm8995_reg_defaults),
2253        .volatile_reg = wm8995_volatile,
2254        .readable_reg = wm8995_readable,
2255        .cache_type = REGCACHE_RBTREE,
2256};
2257
2258#if defined(CONFIG_SPI_MASTER)
2259static int wm8995_spi_probe(struct spi_device *spi)
2260{
2261        struct wm8995_priv *wm8995;
2262        int ret;
2263
2264        wm8995 = devm_kzalloc(&spi->dev, sizeof(*wm8995), GFP_KERNEL);
2265        if (!wm8995)
2266                return -ENOMEM;
2267
2268        spi_set_drvdata(spi, wm8995);
2269
2270        wm8995->regmap = devm_regmap_init_spi(spi, &wm8995_regmap);
2271        if (IS_ERR(wm8995->regmap)) {
2272                ret = PTR_ERR(wm8995->regmap);
2273                dev_err(&spi->dev, "Failed to register regmap: %d\n", ret);
2274                return ret;
2275        }
2276
2277        ret = snd_soc_register_codec(&spi->dev,
2278                                     &soc_codec_dev_wm8995, wm8995_dai,
2279                                     ARRAY_SIZE(wm8995_dai));
2280        return ret;
2281}
2282
2283static int wm8995_spi_remove(struct spi_device *spi)
2284{
2285        snd_soc_unregister_codec(&spi->dev);
2286        return 0;
2287}
2288
2289static struct spi_driver wm8995_spi_driver = {
2290        .driver = {
2291                .name = "wm8995",
2292                .owner = THIS_MODULE,
2293        },
2294        .probe = wm8995_spi_probe,
2295        .remove = wm8995_spi_remove
2296};
2297#endif
2298
2299#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
2300static int wm8995_i2c_probe(struct i2c_client *i2c,
2301                            const struct i2c_device_id *id)
2302{
2303        struct wm8995_priv *wm8995;
2304        int ret;
2305
2306        wm8995 = devm_kzalloc(&i2c->dev, sizeof(*wm8995), GFP_KERNEL);
2307        if (!wm8995)
2308                return -ENOMEM;
2309
2310        i2c_set_clientdata(i2c, wm8995);
2311
2312        wm8995->regmap = devm_regmap_init_i2c(i2c, &wm8995_regmap);
2313        if (IS_ERR(wm8995->regmap)) {
2314                ret = PTR_ERR(wm8995->regmap);
2315                dev_err(&i2c->dev, "Failed to register regmap: %d\n", ret);
2316                return ret;
2317        }
2318
2319        ret = snd_soc_register_codec(&i2c->dev,
2320                                     &soc_codec_dev_wm8995, wm8995_dai,
2321                                     ARRAY_SIZE(wm8995_dai));
2322        if (ret < 0)
2323                dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
2324
2325        return ret;
2326}
2327
2328static int wm8995_i2c_remove(struct i2c_client *client)
2329{
2330        snd_soc_unregister_codec(&client->dev);
2331        return 0;
2332}
2333
2334static const struct i2c_device_id wm8995_i2c_id[] = {
2335        {"wm8995", 0},
2336        {}
2337};
2338
2339MODULE_DEVICE_TABLE(i2c, wm8995_i2c_id);
2340
2341static struct i2c_driver wm8995_i2c_driver = {
2342        .driver = {
2343                .name = "wm8995",
2344                .owner = THIS_MODULE,
2345        },
2346        .probe = wm8995_i2c_probe,
2347        .remove = wm8995_i2c_remove,
2348        .id_table = wm8995_i2c_id
2349};
2350#endif
2351
2352static int __init wm8995_modinit(void)
2353{
2354        int ret = 0;
2355
2356#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
2357        ret = i2c_add_driver(&wm8995_i2c_driver);
2358        if (ret) {
2359                printk(KERN_ERR "Failed to register wm8995 I2C driver: %d\n",
2360                       ret);
2361        }
2362#endif
2363#if defined(CONFIG_SPI_MASTER)
2364        ret = spi_register_driver(&wm8995_spi_driver);
2365        if (ret) {
2366                printk(KERN_ERR "Failed to register wm8995 SPI driver: %d\n",
2367                       ret);
2368        }
2369#endif
2370        return ret;
2371}
2372
2373module_init(wm8995_modinit);
2374
2375static void __exit wm8995_exit(void)
2376{
2377#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
2378        i2c_del_driver(&wm8995_i2c_driver);
2379#endif
2380#if defined(CONFIG_SPI_MASTER)
2381        spi_unregister_driver(&wm8995_spi_driver);
2382#endif
2383}
2384
2385module_exit(wm8995_exit);
2386
2387MODULE_DESCRIPTION("ASoC WM8995 driver");
2388MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>");
2389MODULE_LICENSE("GPL");
2390