linux/sound/soc/codecs/wm8991.c
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   1/*
   2 * wm8991.c  --  WM8991 ALSA Soc Audio driver
   3 *
   4 * Copyright 2007-2010 Wolfson Microelectronics PLC.
   5 * Author: Graeme Gregory
   6 *         Graeme.Gregory@wolfsonmicro.com
   7 *
   8 *  This program is free software; you can redistribute  it and/or modify it
   9 *  under  the terms of  the GNU General  Public License as published by the
  10 *  Free Software Foundation;  either version 2 of the  License, or (at your
  11 *  option) any later version.
  12 */
  13
  14#include <linux/module.h>
  15#include <linux/moduleparam.h>
  16#include <linux/kernel.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/slab.h>
  23#include <sound/core.h>
  24#include <sound/pcm.h>
  25#include <sound/pcm_params.h>
  26#include <sound/soc.h>
  27#include <sound/soc-dapm.h>
  28#include <sound/initval.h>
  29#include <sound/tlv.h>
  30#include <asm/div64.h>
  31
  32#include "wm8991.h"
  33
  34struct wm8991_priv {
  35        struct regmap *regmap;
  36        unsigned int pcmclk;
  37};
  38
  39static const struct reg_default wm8991_reg_defaults[] = {
  40        {  1, 0x0000 },     /* R1  - Power Management (1) */
  41        {  2, 0x6000 },     /* R2  - Power Management (2) */
  42        {  3, 0x0000 },     /* R3  - Power Management (3) */
  43        {  4, 0x4050 },     /* R4  - Audio Interface (1) */
  44        {  5, 0x4000 },     /* R5  - Audio Interface (2) */
  45        {  6, 0x01C8 },     /* R6  - Clocking (1) */
  46        {  7, 0x0000 },     /* R7  - Clocking (2) */
  47        {  8, 0x0040 },     /* R8  - Audio Interface (3) */
  48        {  9, 0x0040 },     /* R9  - Audio Interface (4) */
  49        { 10, 0x0004 },     /* R10 - DAC CTRL */
  50        { 11, 0x00C0 },     /* R11 - Left DAC Digital Volume */
  51        { 12, 0x00C0 },     /* R12 - Right DAC Digital Volume */
  52        { 13, 0x0000 },     /* R13 - Digital Side Tone */
  53        { 14, 0x0100 },     /* R14 - ADC CTRL */
  54        { 15, 0x00C0 },     /* R15 - Left ADC Digital Volume */
  55        { 16, 0x00C0 },     /* R16 - Right ADC Digital Volume */
  56
  57        { 18, 0x0000 },     /* R18 - GPIO CTRL 1 */
  58        { 19, 0x1000 },     /* R19 - GPIO1 & GPIO2 */
  59        { 20, 0x1010 },     /* R20 - GPIO3 & GPIO4 */
  60        { 21, 0x1010 },     /* R21 - GPIO5 & GPIO6 */
  61        { 22, 0x8000 },     /* R22 - GPIOCTRL 2 */
  62        { 23, 0x0800 },     /* R23 - GPIO_POL */
  63        { 24, 0x008B },     /* R24 - Left Line Input 1&2 Volume */
  64        { 25, 0x008B },     /* R25 - Left Line Input 3&4 Volume */
  65        { 26, 0x008B },     /* R26 - Right Line Input 1&2 Volume */
  66        { 27, 0x008B },     /* R27 - Right Line Input 3&4 Volume */
  67        { 28, 0x0000 },     /* R28 - Left Output Volume */
  68        { 29, 0x0000 },     /* R29 - Right Output Volume */
  69        { 30, 0x0066 },     /* R30 - Line Outputs Volume */
  70        { 31, 0x0022 },     /* R31 - Out3/4 Volume */
  71        { 32, 0x0079 },     /* R32 - Left OPGA Volume */
  72        { 33, 0x0079 },     /* R33 - Right OPGA Volume */
  73        { 34, 0x0003 },     /* R34 - Speaker Volume */
  74        { 35, 0x0003 },     /* R35 - ClassD1 */
  75
  76        { 37, 0x0100 },     /* R37 - ClassD3 */
  77
  78        { 39, 0x0000 },     /* R39 - Input Mixer1 */
  79        { 40, 0x0000 },     /* R40 - Input Mixer2 */
  80        { 41, 0x0000 },     /* R41 - Input Mixer3 */
  81        { 42, 0x0000 },     /* R42 - Input Mixer4 */
  82        { 43, 0x0000 },     /* R43 - Input Mixer5 */
  83        { 44, 0x0000 },     /* R44 - Input Mixer6 */
  84        { 45, 0x0000 },     /* R45 - Output Mixer1 */
  85        { 46, 0x0000 },     /* R46 - Output Mixer2 */
  86        { 47, 0x0000 },     /* R47 - Output Mixer3 */
  87        { 48, 0x0000 },     /* R48 - Output Mixer4 */
  88        { 49, 0x0000 },     /* R49 - Output Mixer5 */
  89        { 50, 0x0000 },     /* R50 - Output Mixer6 */
  90        { 51, 0x0180 },     /* R51 - Out3/4 Mixer */
  91        { 52, 0x0000 },     /* R52 - Line Mixer1 */
  92        { 53, 0x0000 },     /* R53 - Line Mixer2 */
  93        { 54, 0x0000 },     /* R54 - Speaker Mixer */
  94        { 55, 0x0000 },     /* R55 - Additional Control */
  95        { 56, 0x0000 },     /* R56 - AntiPOP1 */
  96        { 57, 0x0000 },     /* R57 - AntiPOP2 */
  97        { 58, 0x0000 },     /* R58 - MICBIAS */
  98
  99        { 60, 0x0008 },     /* R60 - PLL1 */
 100        { 61, 0x0031 },     /* R61 - PLL2 */
 101        { 62, 0x0026 },     /* R62 - PLL3 */
 102};
 103
 104static bool wm8991_volatile(struct device *dev, unsigned int reg)
 105{
 106        switch (reg) {
 107        case WM8991_RESET:
 108                return true;
 109        default:
 110                return false;
 111        }
 112}
 113
 114static const DECLARE_TLV_DB_LINEAR(rec_mix_tlv, -1500, 600);
 115static const DECLARE_TLV_DB_LINEAR(in_pga_tlv, -1650, 3000);
 116static const DECLARE_TLV_DB_LINEAR(out_mix_tlv, 0, -2100);
 117static const DECLARE_TLV_DB_LINEAR(out_pga_tlv, -7300, 600);
 118static const DECLARE_TLV_DB_LINEAR(out_omix_tlv, -600, 0);
 119static const DECLARE_TLV_DB_LINEAR(out_dac_tlv, -7163, 0);
 120static const DECLARE_TLV_DB_LINEAR(in_adc_tlv, -7163, 1763);
 121static const DECLARE_TLV_DB_LINEAR(out_sidetone_tlv, -3600, 0);
 122
 123static int wm899x_outpga_put_volsw_vu(struct snd_kcontrol *kcontrol,
 124                                      struct snd_ctl_elem_value *ucontrol)
 125{
 126        struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 127        int reg = kcontrol->private_value & 0xff;
 128        int ret;
 129        u16 val;
 130
 131        ret = snd_soc_put_volsw(kcontrol, ucontrol);
 132        if (ret < 0)
 133                return ret;
 134
 135        /* now hit the volume update bits (always bit 8) */
 136        val = snd_soc_read(codec, reg);
 137        return snd_soc_write(codec, reg, val | 0x0100);
 138}
 139
 140static const char *wm8991_digital_sidetone[] =
 141{"None", "Left ADC", "Right ADC", "Reserved"};
 142
 143static SOC_ENUM_SINGLE_DECL(wm8991_left_digital_sidetone_enum,
 144                            WM8991_DIGITAL_SIDE_TONE,
 145                            WM8991_ADC_TO_DACL_SHIFT,
 146                            wm8991_digital_sidetone);
 147
 148static SOC_ENUM_SINGLE_DECL(wm8991_right_digital_sidetone_enum,
 149                            WM8991_DIGITAL_SIDE_TONE,
 150                            WM8991_ADC_TO_DACR_SHIFT,
 151                            wm8991_digital_sidetone);
 152
 153static const char *wm8991_adcmode[] =
 154{"Hi-fi mode", "Voice mode 1", "Voice mode 2", "Voice mode 3"};
 155
 156static SOC_ENUM_SINGLE_DECL(wm8991_right_adcmode_enum,
 157                            WM8991_ADC_CTRL,
 158                            WM8991_ADC_HPF_CUT_SHIFT,
 159                            wm8991_adcmode);
 160
 161static const struct snd_kcontrol_new wm8991_snd_controls[] = {
 162        /* INMIXL */
 163        SOC_SINGLE("LIN12 PGA Boost", WM8991_INPUT_MIXER3, WM8991_L12MNBST_BIT, 1, 0),
 164        SOC_SINGLE("LIN34 PGA Boost", WM8991_INPUT_MIXER3, WM8991_L34MNBST_BIT, 1, 0),
 165        /* INMIXR */
 166        SOC_SINGLE("RIN12 PGA Boost", WM8991_INPUT_MIXER3, WM8991_R12MNBST_BIT, 1, 0),
 167        SOC_SINGLE("RIN34 PGA Boost", WM8991_INPUT_MIXER3, WM8991_R34MNBST_BIT, 1, 0),
 168
 169        /* LOMIX */
 170        SOC_SINGLE_TLV("LOMIX LIN3 Bypass Volume", WM8991_OUTPUT_MIXER3,
 171                WM8991_LLI3LOVOL_SHIFT, WM8991_LLI3LOVOL_MASK, 1, out_mix_tlv),
 172        SOC_SINGLE_TLV("LOMIX RIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER3,
 173                WM8991_LR12LOVOL_SHIFT, WM8991_LR12LOVOL_MASK, 1, out_mix_tlv),
 174        SOC_SINGLE_TLV("LOMIX LIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER3,
 175                WM8991_LL12LOVOL_SHIFT, WM8991_LL12LOVOL_MASK, 1, out_mix_tlv),
 176        SOC_SINGLE_TLV("LOMIX RIN3 Bypass Volume", WM8991_OUTPUT_MIXER5,
 177                WM8991_LRI3LOVOL_SHIFT, WM8991_LRI3LOVOL_MASK, 1, out_mix_tlv),
 178        SOC_SINGLE_TLV("LOMIX AINRMUX Bypass Volume", WM8991_OUTPUT_MIXER5,
 179                WM8991_LRBLOVOL_SHIFT, WM8991_LRBLOVOL_MASK, 1, out_mix_tlv),
 180        SOC_SINGLE_TLV("LOMIX AINLMUX Bypass Volume", WM8991_OUTPUT_MIXER5,
 181                WM8991_LRBLOVOL_SHIFT, WM8991_LRBLOVOL_MASK, 1, out_mix_tlv),
 182
 183        /* ROMIX */
 184        SOC_SINGLE_TLV("ROMIX RIN3 Bypass Volume", WM8991_OUTPUT_MIXER4,
 185                WM8991_RRI3ROVOL_SHIFT, WM8991_RRI3ROVOL_MASK, 1, out_mix_tlv),
 186        SOC_SINGLE_TLV("ROMIX LIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER4,
 187                WM8991_RL12ROVOL_SHIFT, WM8991_RL12ROVOL_MASK, 1, out_mix_tlv),
 188        SOC_SINGLE_TLV("ROMIX RIN12 PGA Bypass Volume", WM8991_OUTPUT_MIXER4,
 189                WM8991_RR12ROVOL_SHIFT, WM8991_RR12ROVOL_MASK, 1, out_mix_tlv),
 190        SOC_SINGLE_TLV("ROMIX LIN3 Bypass Volume", WM8991_OUTPUT_MIXER6,
 191                WM8991_RLI3ROVOL_SHIFT, WM8991_RLI3ROVOL_MASK, 1, out_mix_tlv),
 192        SOC_SINGLE_TLV("ROMIX AINLMUX Bypass Volume", WM8991_OUTPUT_MIXER6,
 193                WM8991_RLBROVOL_SHIFT, WM8991_RLBROVOL_MASK, 1, out_mix_tlv),
 194        SOC_SINGLE_TLV("ROMIX AINRMUX Bypass Volume", WM8991_OUTPUT_MIXER6,
 195                WM8991_RRBROVOL_SHIFT, WM8991_RRBROVOL_MASK, 1, out_mix_tlv),
 196
 197        /* LOUT */
 198        SOC_WM899X_OUTPGA_SINGLE_R_TLV("LOUT Volume", WM8991_LEFT_OUTPUT_VOLUME,
 199                WM8991_LOUTVOL_SHIFT, WM8991_LOUTVOL_MASK, 0, out_pga_tlv),
 200        SOC_SINGLE("LOUT ZC", WM8991_LEFT_OUTPUT_VOLUME, WM8991_LOZC_BIT, 1, 0),
 201
 202        /* ROUT */
 203        SOC_WM899X_OUTPGA_SINGLE_R_TLV("ROUT Volume", WM8991_RIGHT_OUTPUT_VOLUME,
 204                WM8991_ROUTVOL_SHIFT, WM8991_ROUTVOL_MASK, 0, out_pga_tlv),
 205        SOC_SINGLE("ROUT ZC", WM8991_RIGHT_OUTPUT_VOLUME, WM8991_ROZC_BIT, 1, 0),
 206
 207        /* LOPGA */
 208        SOC_WM899X_OUTPGA_SINGLE_R_TLV("LOPGA Volume", WM8991_LEFT_OPGA_VOLUME,
 209                WM8991_LOPGAVOL_SHIFT, WM8991_LOPGAVOL_MASK, 0, out_pga_tlv),
 210        SOC_SINGLE("LOPGA ZC Switch", WM8991_LEFT_OPGA_VOLUME,
 211                WM8991_LOPGAZC_BIT, 1, 0),
 212
 213        /* ROPGA */
 214        SOC_WM899X_OUTPGA_SINGLE_R_TLV("ROPGA Volume", WM8991_RIGHT_OPGA_VOLUME,
 215                WM8991_ROPGAVOL_SHIFT, WM8991_ROPGAVOL_MASK, 0, out_pga_tlv),
 216        SOC_SINGLE("ROPGA ZC Switch", WM8991_RIGHT_OPGA_VOLUME,
 217                WM8991_ROPGAZC_BIT, 1, 0),
 218
 219        SOC_SINGLE("LON Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
 220                WM8991_LONMUTE_BIT, 1, 0),
 221        SOC_SINGLE("LOP Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
 222                WM8991_LOPMUTE_BIT, 1, 0),
 223        SOC_SINGLE("LOP Attenuation Switch", WM8991_LINE_OUTPUTS_VOLUME,
 224                WM8991_LOATTN_BIT, 1, 0),
 225        SOC_SINGLE("RON Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
 226                WM8991_RONMUTE_BIT, 1, 0),
 227        SOC_SINGLE("ROP Mute Switch", WM8991_LINE_OUTPUTS_VOLUME,
 228                WM8991_ROPMUTE_BIT, 1, 0),
 229        SOC_SINGLE("ROP Attenuation Switch", WM8991_LINE_OUTPUTS_VOLUME,
 230                WM8991_ROATTN_BIT, 1, 0),
 231
 232        SOC_SINGLE("OUT3 Mute Switch", WM8991_OUT3_4_VOLUME,
 233                WM8991_OUT3MUTE_BIT, 1, 0),
 234        SOC_SINGLE("OUT3 Attenuation Switch", WM8991_OUT3_4_VOLUME,
 235                WM8991_OUT3ATTN_BIT, 1, 0),
 236
 237        SOC_SINGLE("OUT4 Mute Switch", WM8991_OUT3_4_VOLUME,
 238                WM8991_OUT4MUTE_BIT, 1, 0),
 239        SOC_SINGLE("OUT4 Attenuation Switch", WM8991_OUT3_4_VOLUME,
 240                WM8991_OUT4ATTN_BIT, 1, 0),
 241
 242        SOC_SINGLE("Speaker Mode Switch", WM8991_CLASSD1,
 243                WM8991_CDMODE_BIT, 1, 0),
 244
 245        SOC_SINGLE("Speaker Output Attenuation Volume", WM8991_SPEAKER_VOLUME,
 246                WM8991_SPKVOL_SHIFT, WM8991_SPKVOL_MASK, 0),
 247        SOC_SINGLE("Speaker DC Boost Volume", WM8991_CLASSD3,
 248                WM8991_DCGAIN_SHIFT, WM8991_DCGAIN_MASK, 0),
 249        SOC_SINGLE("Speaker AC Boost Volume", WM8991_CLASSD3,
 250                WM8991_ACGAIN_SHIFT, WM8991_ACGAIN_MASK, 0),
 251
 252        SOC_WM899X_OUTPGA_SINGLE_R_TLV("Left DAC Digital Volume",
 253                WM8991_LEFT_DAC_DIGITAL_VOLUME,
 254                WM8991_DACL_VOL_SHIFT,
 255                WM8991_DACL_VOL_MASK,
 256                0,
 257                out_dac_tlv),
 258
 259        SOC_WM899X_OUTPGA_SINGLE_R_TLV("Right DAC Digital Volume",
 260                WM8991_RIGHT_DAC_DIGITAL_VOLUME,
 261                WM8991_DACR_VOL_SHIFT,
 262                WM8991_DACR_VOL_MASK,
 263                0,
 264                out_dac_tlv),
 265
 266        SOC_ENUM("Left Digital Sidetone", wm8991_left_digital_sidetone_enum),
 267        SOC_ENUM("Right Digital Sidetone", wm8991_right_digital_sidetone_enum),
 268
 269        SOC_SINGLE_TLV("Left Digital Sidetone Volume", WM8991_DIGITAL_SIDE_TONE,
 270                WM8991_ADCL_DAC_SVOL_SHIFT, WM8991_ADCL_DAC_SVOL_MASK, 0,
 271                out_sidetone_tlv),
 272        SOC_SINGLE_TLV("Right Digital Sidetone Volume", WM8991_DIGITAL_SIDE_TONE,
 273                WM8991_ADCR_DAC_SVOL_SHIFT, WM8991_ADCR_DAC_SVOL_MASK, 0,
 274                out_sidetone_tlv),
 275
 276        SOC_SINGLE("ADC Digital High Pass Filter Switch", WM8991_ADC_CTRL,
 277                WM8991_ADC_HPF_ENA_BIT, 1, 0),
 278
 279        SOC_ENUM("ADC HPF Mode", wm8991_right_adcmode_enum),
 280
 281        SOC_WM899X_OUTPGA_SINGLE_R_TLV("Left ADC Digital Volume",
 282                WM8991_LEFT_ADC_DIGITAL_VOLUME,
 283                WM8991_ADCL_VOL_SHIFT,
 284                WM8991_ADCL_VOL_MASK,
 285                0,
 286                in_adc_tlv),
 287
 288        SOC_WM899X_OUTPGA_SINGLE_R_TLV("Right ADC Digital Volume",
 289                WM8991_RIGHT_ADC_DIGITAL_VOLUME,
 290                WM8991_ADCR_VOL_SHIFT,
 291                WM8991_ADCR_VOL_MASK,
 292                0,
 293                in_adc_tlv),
 294
 295        SOC_WM899X_OUTPGA_SINGLE_R_TLV("LIN12 Volume",
 296                WM8991_LEFT_LINE_INPUT_1_2_VOLUME,
 297                WM8991_LIN12VOL_SHIFT,
 298                WM8991_LIN12VOL_MASK,
 299                0,
 300                in_pga_tlv),
 301
 302        SOC_SINGLE("LIN12 ZC Switch", WM8991_LEFT_LINE_INPUT_1_2_VOLUME,
 303                WM8991_LI12ZC_BIT, 1, 0),
 304
 305        SOC_SINGLE("LIN12 Mute Switch", WM8991_LEFT_LINE_INPUT_1_2_VOLUME,
 306                WM8991_LI12MUTE_BIT, 1, 0),
 307
 308        SOC_WM899X_OUTPGA_SINGLE_R_TLV("LIN34 Volume",
 309                WM8991_LEFT_LINE_INPUT_3_4_VOLUME,
 310                WM8991_LIN34VOL_SHIFT,
 311                WM8991_LIN34VOL_MASK,
 312                0,
 313                in_pga_tlv),
 314
 315        SOC_SINGLE("LIN34 ZC Switch", WM8991_LEFT_LINE_INPUT_3_4_VOLUME,
 316                WM8991_LI34ZC_BIT, 1, 0),
 317
 318        SOC_SINGLE("LIN34 Mute Switch", WM8991_LEFT_LINE_INPUT_3_4_VOLUME,
 319                WM8991_LI34MUTE_BIT, 1, 0),
 320
 321        SOC_WM899X_OUTPGA_SINGLE_R_TLV("RIN12 Volume",
 322                WM8991_RIGHT_LINE_INPUT_1_2_VOLUME,
 323                WM8991_RIN12VOL_SHIFT,
 324                WM8991_RIN12VOL_MASK,
 325                0,
 326                in_pga_tlv),
 327
 328        SOC_SINGLE("RIN12 ZC Switch", WM8991_RIGHT_LINE_INPUT_1_2_VOLUME,
 329                WM8991_RI12ZC_BIT, 1, 0),
 330
 331        SOC_SINGLE("RIN12 Mute Switch", WM8991_RIGHT_LINE_INPUT_1_2_VOLUME,
 332                WM8991_RI12MUTE_BIT, 1, 0),
 333
 334        SOC_WM899X_OUTPGA_SINGLE_R_TLV("RIN34 Volume",
 335                WM8991_RIGHT_LINE_INPUT_3_4_VOLUME,
 336                WM8991_RIN34VOL_SHIFT,
 337                WM8991_RIN34VOL_MASK,
 338                0,
 339                in_pga_tlv),
 340
 341        SOC_SINGLE("RIN34 ZC Switch", WM8991_RIGHT_LINE_INPUT_3_4_VOLUME,
 342                WM8991_RI34ZC_BIT, 1, 0),
 343
 344        SOC_SINGLE("RIN34 Mute Switch", WM8991_RIGHT_LINE_INPUT_3_4_VOLUME,
 345                WM8991_RI34MUTE_BIT, 1, 0),
 346};
 347
 348/*
 349 * _DAPM_ Controls
 350 */
 351static int outmixer_event(struct snd_soc_dapm_widget *w,
 352                          struct snd_kcontrol *kcontrol, int event)
 353{
 354        struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
 355        u32 reg_shift = kcontrol->private_value & 0xfff;
 356        int ret = 0;
 357        u16 reg;
 358
 359        switch (reg_shift) {
 360        case WM8991_SPEAKER_MIXER | (WM8991_LDSPK_BIT << 8):
 361                reg = snd_soc_read(codec, WM8991_OUTPUT_MIXER1);
 362                if (reg & WM8991_LDLO) {
 363                        printk(KERN_WARNING
 364                               "Cannot set as Output Mixer 1 LDLO Set\n");
 365                        ret = -1;
 366                }
 367                break;
 368
 369        case WM8991_SPEAKER_MIXER | (WM8991_RDSPK_BIT << 8):
 370                reg = snd_soc_read(codec, WM8991_OUTPUT_MIXER2);
 371                if (reg & WM8991_RDRO) {
 372                        printk(KERN_WARNING
 373                               "Cannot set as Output Mixer 2 RDRO Set\n");
 374                        ret = -1;
 375                }
 376                break;
 377
 378        case WM8991_OUTPUT_MIXER1 | (WM8991_LDLO_BIT << 8):
 379                reg = snd_soc_read(codec, WM8991_SPEAKER_MIXER);
 380                if (reg & WM8991_LDSPK) {
 381                        printk(KERN_WARNING
 382                               "Cannot set as Speaker Mixer LDSPK Set\n");
 383                        ret = -1;
 384                }
 385                break;
 386
 387        case WM8991_OUTPUT_MIXER2 | (WM8991_RDRO_BIT << 8):
 388                reg = snd_soc_read(codec, WM8991_SPEAKER_MIXER);
 389                if (reg & WM8991_RDSPK) {
 390                        printk(KERN_WARNING
 391                               "Cannot set as Speaker Mixer RDSPK Set\n");
 392                        ret = -1;
 393                }
 394                break;
 395        }
 396
 397        return ret;
 398}
 399
 400/* INMIX dB values */
 401static const DECLARE_TLV_DB_LINEAR(in_mix_tlv, -1200, 600);
 402
 403/* Left In PGA Connections */
 404static const struct snd_kcontrol_new wm8991_dapm_lin12_pga_controls[] = {
 405        SOC_DAPM_SINGLE("LIN1 Switch", WM8991_INPUT_MIXER2, WM8991_LMN1_BIT, 1, 0),
 406        SOC_DAPM_SINGLE("LIN2 Switch", WM8991_INPUT_MIXER2, WM8991_LMP2_BIT, 1, 0),
 407};
 408
 409static const struct snd_kcontrol_new wm8991_dapm_lin34_pga_controls[] = {
 410        SOC_DAPM_SINGLE("LIN3 Switch", WM8991_INPUT_MIXER2, WM8991_LMN3_BIT, 1, 0),
 411        SOC_DAPM_SINGLE("LIN4 Switch", WM8991_INPUT_MIXER2, WM8991_LMP4_BIT, 1, 0),
 412};
 413
 414/* Right In PGA Connections */
 415static const struct snd_kcontrol_new wm8991_dapm_rin12_pga_controls[] = {
 416        SOC_DAPM_SINGLE("RIN1 Switch", WM8991_INPUT_MIXER2, WM8991_RMN1_BIT, 1, 0),
 417        SOC_DAPM_SINGLE("RIN2 Switch", WM8991_INPUT_MIXER2, WM8991_RMP2_BIT, 1, 0),
 418};
 419
 420static const struct snd_kcontrol_new wm8991_dapm_rin34_pga_controls[] = {
 421        SOC_DAPM_SINGLE("RIN3 Switch", WM8991_INPUT_MIXER2, WM8991_RMN3_BIT, 1, 0),
 422        SOC_DAPM_SINGLE("RIN4 Switch", WM8991_INPUT_MIXER2, WM8991_RMP4_BIT, 1, 0),
 423};
 424
 425/* INMIXL */
 426static const struct snd_kcontrol_new wm8991_dapm_inmixl_controls[] = {
 427        SOC_DAPM_SINGLE_TLV("Record Left Volume", WM8991_INPUT_MIXER3,
 428                WM8991_LDBVOL_SHIFT, WM8991_LDBVOL_MASK, 0, in_mix_tlv),
 429        SOC_DAPM_SINGLE_TLV("LIN2 Volume", WM8991_INPUT_MIXER5, WM8991_LI2BVOL_SHIFT,
 430                7, 0, in_mix_tlv),
 431        SOC_DAPM_SINGLE("LINPGA12 Switch", WM8991_INPUT_MIXER3, WM8991_L12MNB_BIT,
 432                1, 0),
 433        SOC_DAPM_SINGLE("LINPGA34 Switch", WM8991_INPUT_MIXER3, WM8991_L34MNB_BIT,
 434                1, 0),
 435};
 436
 437/* INMIXR */
 438static const struct snd_kcontrol_new wm8991_dapm_inmixr_controls[] = {
 439        SOC_DAPM_SINGLE_TLV("Record Right Volume", WM8991_INPUT_MIXER4,
 440                WM8991_RDBVOL_SHIFT, WM8991_RDBVOL_MASK, 0, in_mix_tlv),
 441        SOC_DAPM_SINGLE_TLV("RIN2 Volume", WM8991_INPUT_MIXER6, WM8991_RI2BVOL_SHIFT,
 442                7, 0, in_mix_tlv),
 443        SOC_DAPM_SINGLE("RINPGA12 Switch", WM8991_INPUT_MIXER3, WM8991_L12MNB_BIT,
 444                1, 0),
 445        SOC_DAPM_SINGLE("RINPGA34 Switch", WM8991_INPUT_MIXER3, WM8991_L34MNB_BIT,
 446                1, 0),
 447};
 448
 449/* AINLMUX */
 450static const char *wm8991_ainlmux[] =
 451{"INMIXL Mix", "RXVOICE Mix", "DIFFINL Mix"};
 452
 453static SOC_ENUM_SINGLE_DECL(wm8991_ainlmux_enum,
 454                            WM8991_INPUT_MIXER1, WM8991_AINLMODE_SHIFT,
 455                            wm8991_ainlmux);
 456
 457static const struct snd_kcontrol_new wm8991_dapm_ainlmux_controls =
 458        SOC_DAPM_ENUM("Route", wm8991_ainlmux_enum);
 459
 460/* DIFFINL */
 461
 462/* AINRMUX */
 463static const char *wm8991_ainrmux[] =
 464{"INMIXR Mix", "RXVOICE Mix", "DIFFINR Mix"};
 465
 466static SOC_ENUM_SINGLE_DECL(wm8991_ainrmux_enum,
 467                            WM8991_INPUT_MIXER1, WM8991_AINRMODE_SHIFT,
 468                            wm8991_ainrmux);
 469
 470static const struct snd_kcontrol_new wm8991_dapm_ainrmux_controls =
 471        SOC_DAPM_ENUM("Route", wm8991_ainrmux_enum);
 472
 473/* RXVOICE */
 474static const struct snd_kcontrol_new wm8991_dapm_rxvoice_controls[] = {
 475        SOC_DAPM_SINGLE_TLV("LIN4RXN", WM8991_INPUT_MIXER5, WM8991_LR4BVOL_SHIFT,
 476                WM8991_LR4BVOL_MASK, 0, in_mix_tlv),
 477        SOC_DAPM_SINGLE_TLV("RIN4RXP", WM8991_INPUT_MIXER6, WM8991_RL4BVOL_SHIFT,
 478                WM8991_RL4BVOL_MASK, 0, in_mix_tlv),
 479};
 480
 481/* LOMIX */
 482static const struct snd_kcontrol_new wm8991_dapm_lomix_controls[] = {
 483        SOC_DAPM_SINGLE("LOMIX Right ADC Bypass Switch", WM8991_OUTPUT_MIXER1,
 484                WM8991_LRBLO_BIT, 1, 0),
 485        SOC_DAPM_SINGLE("LOMIX Left ADC Bypass Switch", WM8991_OUTPUT_MIXER1,
 486                WM8991_LLBLO_BIT, 1, 0),
 487        SOC_DAPM_SINGLE("LOMIX RIN3 Bypass Switch", WM8991_OUTPUT_MIXER1,
 488                WM8991_LRI3LO_BIT, 1, 0),
 489        SOC_DAPM_SINGLE("LOMIX LIN3 Bypass Switch", WM8991_OUTPUT_MIXER1,
 490                WM8991_LLI3LO_BIT, 1, 0),
 491        SOC_DAPM_SINGLE("LOMIX RIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER1,
 492                WM8991_LR12LO_BIT, 1, 0),
 493        SOC_DAPM_SINGLE("LOMIX LIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER1,
 494                WM8991_LL12LO_BIT, 1, 0),
 495        SOC_DAPM_SINGLE("LOMIX Left DAC Switch", WM8991_OUTPUT_MIXER1,
 496                WM8991_LDLO_BIT, 1, 0),
 497};
 498
 499/* ROMIX */
 500static const struct snd_kcontrol_new wm8991_dapm_romix_controls[] = {
 501        SOC_DAPM_SINGLE("ROMIX Left ADC Bypass Switch", WM8991_OUTPUT_MIXER2,
 502                WM8991_RLBRO_BIT, 1, 0),
 503        SOC_DAPM_SINGLE("ROMIX Right ADC Bypass Switch", WM8991_OUTPUT_MIXER2,
 504                WM8991_RRBRO_BIT, 1, 0),
 505        SOC_DAPM_SINGLE("ROMIX LIN3 Bypass Switch", WM8991_OUTPUT_MIXER2,
 506                WM8991_RLI3RO_BIT, 1, 0),
 507        SOC_DAPM_SINGLE("ROMIX RIN3 Bypass Switch", WM8991_OUTPUT_MIXER2,
 508                WM8991_RRI3RO_BIT, 1, 0),
 509        SOC_DAPM_SINGLE("ROMIX LIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER2,
 510                WM8991_RL12RO_BIT, 1, 0),
 511        SOC_DAPM_SINGLE("ROMIX RIN12 PGA Bypass Switch", WM8991_OUTPUT_MIXER2,
 512                WM8991_RR12RO_BIT, 1, 0),
 513        SOC_DAPM_SINGLE("ROMIX Right DAC Switch", WM8991_OUTPUT_MIXER2,
 514                WM8991_RDRO_BIT, 1, 0),
 515};
 516
 517/* LONMIX */
 518static const struct snd_kcontrol_new wm8991_dapm_lonmix_controls[] = {
 519        SOC_DAPM_SINGLE("LONMIX Left Mixer PGA Switch", WM8991_LINE_MIXER1,
 520                WM8991_LLOPGALON_BIT, 1, 0),
 521        SOC_DAPM_SINGLE("LONMIX Right Mixer PGA Switch", WM8991_LINE_MIXER1,
 522                WM8991_LROPGALON_BIT, 1, 0),
 523        SOC_DAPM_SINGLE("LONMIX Inverted LOP Switch", WM8991_LINE_MIXER1,
 524                WM8991_LOPLON_BIT, 1, 0),
 525};
 526
 527/* LOPMIX */
 528static const struct snd_kcontrol_new wm8991_dapm_lopmix_controls[] = {
 529        SOC_DAPM_SINGLE("LOPMIX Right Mic Bypass Switch", WM8991_LINE_MIXER1,
 530                WM8991_LR12LOP_BIT, 1, 0),
 531        SOC_DAPM_SINGLE("LOPMIX Left Mic Bypass Switch", WM8991_LINE_MIXER1,
 532                WM8991_LL12LOP_BIT, 1, 0),
 533        SOC_DAPM_SINGLE("LOPMIX Left Mixer PGA Switch", WM8991_LINE_MIXER1,
 534                WM8991_LLOPGALOP_BIT, 1, 0),
 535};
 536
 537/* RONMIX */
 538static const struct snd_kcontrol_new wm8991_dapm_ronmix_controls[] = {
 539        SOC_DAPM_SINGLE("RONMIX Right Mixer PGA Switch", WM8991_LINE_MIXER2,
 540                WM8991_RROPGARON_BIT, 1, 0),
 541        SOC_DAPM_SINGLE("RONMIX Left Mixer PGA Switch", WM8991_LINE_MIXER2,
 542                WM8991_RLOPGARON_BIT, 1, 0),
 543        SOC_DAPM_SINGLE("RONMIX Inverted ROP Switch", WM8991_LINE_MIXER2,
 544                WM8991_ROPRON_BIT, 1, 0),
 545};
 546
 547/* ROPMIX */
 548static const struct snd_kcontrol_new wm8991_dapm_ropmix_controls[] = {
 549        SOC_DAPM_SINGLE("ROPMIX Left Mic Bypass Switch", WM8991_LINE_MIXER2,
 550                WM8991_RL12ROP_BIT, 1, 0),
 551        SOC_DAPM_SINGLE("ROPMIX Right Mic Bypass Switch", WM8991_LINE_MIXER2,
 552                WM8991_RR12ROP_BIT, 1, 0),
 553        SOC_DAPM_SINGLE("ROPMIX Right Mixer PGA Switch", WM8991_LINE_MIXER2,
 554                WM8991_RROPGAROP_BIT, 1, 0),
 555};
 556
 557/* OUT3MIX */
 558static const struct snd_kcontrol_new wm8991_dapm_out3mix_controls[] = {
 559        SOC_DAPM_SINGLE("OUT3MIX LIN4RXN Bypass Switch", WM8991_OUT3_4_MIXER,
 560                WM8991_LI4O3_BIT, 1, 0),
 561        SOC_DAPM_SINGLE("OUT3MIX Left Out PGA Switch", WM8991_OUT3_4_MIXER,
 562                WM8991_LPGAO3_BIT, 1, 0),
 563};
 564
 565/* OUT4MIX */
 566static const struct snd_kcontrol_new wm8991_dapm_out4mix_controls[] = {
 567        SOC_DAPM_SINGLE("OUT4MIX Right Out PGA Switch", WM8991_OUT3_4_MIXER,
 568                WM8991_RPGAO4_BIT, 1, 0),
 569        SOC_DAPM_SINGLE("OUT4MIX RIN4RXP Bypass Switch", WM8991_OUT3_4_MIXER,
 570                WM8991_RI4O4_BIT, 1, 0),
 571};
 572
 573/* SPKMIX */
 574static const struct snd_kcontrol_new wm8991_dapm_spkmix_controls[] = {
 575        SOC_DAPM_SINGLE("SPKMIX LIN2 Bypass Switch", WM8991_SPEAKER_MIXER,
 576                WM8991_LI2SPK_BIT, 1, 0),
 577        SOC_DAPM_SINGLE("SPKMIX LADC Bypass Switch", WM8991_SPEAKER_MIXER,
 578                WM8991_LB2SPK_BIT, 1, 0),
 579        SOC_DAPM_SINGLE("SPKMIX Left Mixer PGA Switch", WM8991_SPEAKER_MIXER,
 580                WM8991_LOPGASPK_BIT, 1, 0),
 581        SOC_DAPM_SINGLE("SPKMIX Left DAC Switch", WM8991_SPEAKER_MIXER,
 582                WM8991_LDSPK_BIT, 1, 0),
 583        SOC_DAPM_SINGLE("SPKMIX Right DAC Switch", WM8991_SPEAKER_MIXER,
 584                WM8991_RDSPK_BIT, 1, 0),
 585        SOC_DAPM_SINGLE("SPKMIX Right Mixer PGA Switch", WM8991_SPEAKER_MIXER,
 586                WM8991_ROPGASPK_BIT, 1, 0),
 587        SOC_DAPM_SINGLE("SPKMIX RADC Bypass Switch", WM8991_SPEAKER_MIXER,
 588                WM8991_RL12ROP_BIT, 1, 0),
 589        SOC_DAPM_SINGLE("SPKMIX RIN2 Bypass Switch", WM8991_SPEAKER_MIXER,
 590                WM8991_RI2SPK_BIT, 1, 0),
 591};
 592
 593static const struct snd_soc_dapm_widget wm8991_dapm_widgets[] = {
 594        /* Input Side */
 595        /* Input Lines */
 596        SND_SOC_DAPM_INPUT("LIN1"),
 597        SND_SOC_DAPM_INPUT("LIN2"),
 598        SND_SOC_DAPM_INPUT("LIN3"),
 599        SND_SOC_DAPM_INPUT("LIN4RXN"),
 600        SND_SOC_DAPM_INPUT("RIN3"),
 601        SND_SOC_DAPM_INPUT("RIN4RXP"),
 602        SND_SOC_DAPM_INPUT("RIN1"),
 603        SND_SOC_DAPM_INPUT("RIN2"),
 604        SND_SOC_DAPM_INPUT("Internal ADC Source"),
 605
 606        SND_SOC_DAPM_SUPPLY("INL", WM8991_POWER_MANAGEMENT_2,
 607                            WM8991_AINL_ENA_BIT, 0, NULL, 0),
 608        SND_SOC_DAPM_SUPPLY("INR", WM8991_POWER_MANAGEMENT_2,
 609                            WM8991_AINR_ENA_BIT, 0, NULL, 0),
 610
 611        /* DACs */
 612        SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8991_POWER_MANAGEMENT_2,
 613                WM8991_ADCL_ENA_BIT, 0),
 614        SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8991_POWER_MANAGEMENT_2,
 615                WM8991_ADCR_ENA_BIT, 0),
 616
 617        /* Input PGAs */
 618        SND_SOC_DAPM_MIXER("LIN12 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_LIN12_ENA_BIT,
 619                0, &wm8991_dapm_lin12_pga_controls[0],
 620                ARRAY_SIZE(wm8991_dapm_lin12_pga_controls)),
 621        SND_SOC_DAPM_MIXER("LIN34 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_LIN34_ENA_BIT,
 622                0, &wm8991_dapm_lin34_pga_controls[0],
 623                ARRAY_SIZE(wm8991_dapm_lin34_pga_controls)),
 624        SND_SOC_DAPM_MIXER("RIN12 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_RIN12_ENA_BIT,
 625                0, &wm8991_dapm_rin12_pga_controls[0],
 626                ARRAY_SIZE(wm8991_dapm_rin12_pga_controls)),
 627        SND_SOC_DAPM_MIXER("RIN34 PGA", WM8991_POWER_MANAGEMENT_2, WM8991_RIN34_ENA_BIT,
 628                0, &wm8991_dapm_rin34_pga_controls[0],
 629                ARRAY_SIZE(wm8991_dapm_rin34_pga_controls)),
 630
 631        /* INMIXL */
 632        SND_SOC_DAPM_MIXER("INMIXL", SND_SOC_NOPM, 0, 0,
 633                &wm8991_dapm_inmixl_controls[0],
 634                ARRAY_SIZE(wm8991_dapm_inmixl_controls)),
 635
 636        /* AINLMUX */
 637        SND_SOC_DAPM_MUX("AINLMUX", SND_SOC_NOPM, 0, 0,
 638                &wm8991_dapm_ainlmux_controls),
 639
 640        /* INMIXR */
 641        SND_SOC_DAPM_MIXER("INMIXR", SND_SOC_NOPM, 0, 0,
 642                &wm8991_dapm_inmixr_controls[0],
 643                ARRAY_SIZE(wm8991_dapm_inmixr_controls)),
 644
 645        /* AINRMUX */
 646        SND_SOC_DAPM_MUX("AINRMUX", SND_SOC_NOPM, 0, 0,
 647                &wm8991_dapm_ainrmux_controls),
 648
 649        /* Output Side */
 650        /* DACs */
 651        SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8991_POWER_MANAGEMENT_3,
 652                WM8991_DACL_ENA_BIT, 0),
 653        SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8991_POWER_MANAGEMENT_3,
 654                WM8991_DACR_ENA_BIT, 0),
 655
 656        /* LOMIX */
 657        SND_SOC_DAPM_MIXER_E("LOMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LOMIX_ENA_BIT,
 658                0, &wm8991_dapm_lomix_controls[0],
 659                ARRAY_SIZE(wm8991_dapm_lomix_controls),
 660                outmixer_event, SND_SOC_DAPM_PRE_REG),
 661
 662        /* LONMIX */
 663        SND_SOC_DAPM_MIXER("LONMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LON_ENA_BIT, 0,
 664                &wm8991_dapm_lonmix_controls[0],
 665                ARRAY_SIZE(wm8991_dapm_lonmix_controls)),
 666
 667        /* LOPMIX */
 668        SND_SOC_DAPM_MIXER("LOPMIX", WM8991_POWER_MANAGEMENT_3, WM8991_LOP_ENA_BIT, 0,
 669                &wm8991_dapm_lopmix_controls[0],
 670                ARRAY_SIZE(wm8991_dapm_lopmix_controls)),
 671
 672        /* OUT3MIX */
 673        SND_SOC_DAPM_MIXER("OUT3MIX", WM8991_POWER_MANAGEMENT_1, WM8991_OUT3_ENA_BIT, 0,
 674                &wm8991_dapm_out3mix_controls[0],
 675                ARRAY_SIZE(wm8991_dapm_out3mix_controls)),
 676
 677        /* SPKMIX */
 678        SND_SOC_DAPM_MIXER_E("SPKMIX", WM8991_POWER_MANAGEMENT_1, WM8991_SPK_ENA_BIT, 0,
 679                &wm8991_dapm_spkmix_controls[0],
 680                ARRAY_SIZE(wm8991_dapm_spkmix_controls), outmixer_event,
 681                SND_SOC_DAPM_PRE_REG),
 682
 683        /* OUT4MIX */
 684        SND_SOC_DAPM_MIXER("OUT4MIX", WM8991_POWER_MANAGEMENT_1, WM8991_OUT4_ENA_BIT, 0,
 685                &wm8991_dapm_out4mix_controls[0],
 686                ARRAY_SIZE(wm8991_dapm_out4mix_controls)),
 687
 688        /* ROPMIX */
 689        SND_SOC_DAPM_MIXER("ROPMIX", WM8991_POWER_MANAGEMENT_3, WM8991_ROP_ENA_BIT, 0,
 690                &wm8991_dapm_ropmix_controls[0],
 691                ARRAY_SIZE(wm8991_dapm_ropmix_controls)),
 692
 693        /* RONMIX */
 694        SND_SOC_DAPM_MIXER("RONMIX", WM8991_POWER_MANAGEMENT_3, WM8991_RON_ENA_BIT, 0,
 695                &wm8991_dapm_ronmix_controls[0],
 696                ARRAY_SIZE(wm8991_dapm_ronmix_controls)),
 697
 698        /* ROMIX */
 699        SND_SOC_DAPM_MIXER_E("ROMIX", WM8991_POWER_MANAGEMENT_3, WM8991_ROMIX_ENA_BIT,
 700                0, &wm8991_dapm_romix_controls[0],
 701                ARRAY_SIZE(wm8991_dapm_romix_controls),
 702                outmixer_event, SND_SOC_DAPM_PRE_REG),
 703
 704        /* LOUT PGA */
 705        SND_SOC_DAPM_PGA("LOUT PGA", WM8991_POWER_MANAGEMENT_1, WM8991_LOUT_ENA_BIT, 0,
 706                NULL, 0),
 707
 708        /* ROUT PGA */
 709        SND_SOC_DAPM_PGA("ROUT PGA", WM8991_POWER_MANAGEMENT_1, WM8991_ROUT_ENA_BIT, 0,
 710                NULL, 0),
 711
 712        /* LOPGA */
 713        SND_SOC_DAPM_PGA("LOPGA", WM8991_POWER_MANAGEMENT_3, WM8991_LOPGA_ENA_BIT, 0,
 714                NULL, 0),
 715
 716        /* ROPGA */
 717        SND_SOC_DAPM_PGA("ROPGA", WM8991_POWER_MANAGEMENT_3, WM8991_ROPGA_ENA_BIT, 0,
 718                NULL, 0),
 719
 720        /* MICBIAS */
 721        SND_SOC_DAPM_SUPPLY("MICBIAS", WM8991_POWER_MANAGEMENT_1,
 722                            WM8991_MICBIAS_ENA_BIT, 0, NULL, 0),
 723
 724        SND_SOC_DAPM_OUTPUT("LON"),
 725        SND_SOC_DAPM_OUTPUT("LOP"),
 726        SND_SOC_DAPM_OUTPUT("OUT3"),
 727        SND_SOC_DAPM_OUTPUT("LOUT"),
 728        SND_SOC_DAPM_OUTPUT("SPKN"),
 729        SND_SOC_DAPM_OUTPUT("SPKP"),
 730        SND_SOC_DAPM_OUTPUT("ROUT"),
 731        SND_SOC_DAPM_OUTPUT("OUT4"),
 732        SND_SOC_DAPM_OUTPUT("ROP"),
 733        SND_SOC_DAPM_OUTPUT("RON"),
 734        SND_SOC_DAPM_OUTPUT("OUT"),
 735
 736        SND_SOC_DAPM_OUTPUT("Internal DAC Sink"),
 737};
 738
 739static const struct snd_soc_dapm_route wm8991_dapm_routes[] = {
 740        /* Make DACs turn on when playing even if not mixed into any outputs */
 741        {"Internal DAC Sink", NULL, "Left DAC"},
 742        {"Internal DAC Sink", NULL, "Right DAC"},
 743
 744        /* Make ADCs turn on when recording even if not mixed from any inputs */
 745        {"Left ADC", NULL, "Internal ADC Source"},
 746        {"Right ADC", NULL, "Internal ADC Source"},
 747
 748        /* Input Side */
 749        {"INMIXL", NULL, "INL"},
 750        {"AINLMUX", NULL, "INL"},
 751        {"INMIXR", NULL, "INR"},
 752        {"AINRMUX", NULL, "INR"},
 753        /* LIN12 PGA */
 754        {"LIN12 PGA", "LIN1 Switch", "LIN1"},
 755        {"LIN12 PGA", "LIN2 Switch", "LIN2"},
 756        /* LIN34 PGA */
 757        {"LIN34 PGA", "LIN3 Switch", "LIN3"},
 758        {"LIN34 PGA", "LIN4 Switch", "LIN4RXN"},
 759        /* INMIXL */
 760        {"INMIXL", "Record Left Volume", "LOMIX"},
 761        {"INMIXL", "LIN2 Volume", "LIN2"},
 762        {"INMIXL", "LINPGA12 Switch", "LIN12 PGA"},
 763        {"INMIXL", "LINPGA34 Switch", "LIN34 PGA"},
 764        /* AINLMUX */
 765        {"AINLMUX", "INMIXL Mix", "INMIXL"},
 766        {"AINLMUX", "DIFFINL Mix", "LIN12 PGA"},
 767        {"AINLMUX", "DIFFINL Mix", "LIN34 PGA"},
 768        {"AINLMUX", "RXVOICE Mix", "LIN4RXN"},
 769        {"AINLMUX", "RXVOICE Mix", "RIN4RXP"},
 770        /* ADC */
 771        {"Left ADC", NULL, "AINLMUX"},
 772
 773        /* RIN12 PGA */
 774        {"RIN12 PGA", "RIN1 Switch", "RIN1"},
 775        {"RIN12 PGA", "RIN2 Switch", "RIN2"},
 776        /* RIN34 PGA */
 777        {"RIN34 PGA", "RIN3 Switch", "RIN3"},
 778        {"RIN34 PGA", "RIN4 Switch", "RIN4RXP"},
 779        /* INMIXL */
 780        {"INMIXR", "Record Right Volume", "ROMIX"},
 781        {"INMIXR", "RIN2 Volume", "RIN2"},
 782        {"INMIXR", "RINPGA12 Switch", "RIN12 PGA"},
 783        {"INMIXR", "RINPGA34 Switch", "RIN34 PGA"},
 784        /* AINRMUX */
 785        {"AINRMUX", "INMIXR Mix", "INMIXR"},
 786        {"AINRMUX", "DIFFINR Mix", "RIN12 PGA"},
 787        {"AINRMUX", "DIFFINR Mix", "RIN34 PGA"},
 788        {"AINRMUX", "RXVOICE Mix", "LIN4RXN"},
 789        {"AINRMUX", "RXVOICE Mix", "RIN4RXP"},
 790        /* ADC */
 791        {"Right ADC", NULL, "AINRMUX"},
 792
 793        /* LOMIX */
 794        {"LOMIX", "LOMIX RIN3 Bypass Switch", "RIN3"},
 795        {"LOMIX", "LOMIX LIN3 Bypass Switch", "LIN3"},
 796        {"LOMIX", "LOMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
 797        {"LOMIX", "LOMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
 798        {"LOMIX", "LOMIX Right ADC Bypass Switch", "AINRMUX"},
 799        {"LOMIX", "LOMIX Left ADC Bypass Switch", "AINLMUX"},
 800        {"LOMIX", "LOMIX Left DAC Switch", "Left DAC"},
 801
 802        /* ROMIX */
 803        {"ROMIX", "ROMIX RIN3 Bypass Switch", "RIN3"},
 804        {"ROMIX", "ROMIX LIN3 Bypass Switch", "LIN3"},
 805        {"ROMIX", "ROMIX LIN12 PGA Bypass Switch", "LIN12 PGA"},
 806        {"ROMIX", "ROMIX RIN12 PGA Bypass Switch", "RIN12 PGA"},
 807        {"ROMIX", "ROMIX Right ADC Bypass Switch", "AINRMUX"},
 808        {"ROMIX", "ROMIX Left ADC Bypass Switch", "AINLMUX"},
 809        {"ROMIX", "ROMIX Right DAC Switch", "Right DAC"},
 810
 811        /* SPKMIX */
 812        {"SPKMIX", "SPKMIX LIN2 Bypass Switch", "LIN2"},
 813        {"SPKMIX", "SPKMIX RIN2 Bypass Switch", "RIN2"},
 814        {"SPKMIX", "SPKMIX LADC Bypass Switch", "AINLMUX"},
 815        {"SPKMIX", "SPKMIX RADC Bypass Switch", "AINRMUX"},
 816        {"SPKMIX", "SPKMIX Left Mixer PGA Switch", "LOPGA"},
 817        {"SPKMIX", "SPKMIX Right Mixer PGA Switch", "ROPGA"},
 818        {"SPKMIX", "SPKMIX Right DAC Switch", "Right DAC"},
 819        {"SPKMIX", "SPKMIX Left DAC Switch", "Right DAC"},
 820
 821        /* LONMIX */
 822        {"LONMIX", "LONMIX Left Mixer PGA Switch", "LOPGA"},
 823        {"LONMIX", "LONMIX Right Mixer PGA Switch", "ROPGA"},
 824        {"LONMIX", "LONMIX Inverted LOP Switch", "LOPMIX"},
 825
 826        /* LOPMIX */
 827        {"LOPMIX", "LOPMIX Right Mic Bypass Switch", "RIN12 PGA"},
 828        {"LOPMIX", "LOPMIX Left Mic Bypass Switch", "LIN12 PGA"},
 829        {"LOPMIX", "LOPMIX Left Mixer PGA Switch", "LOPGA"},
 830
 831        /* OUT3MIX */
 832        {"OUT3MIX", "OUT3MIX LIN4RXN Bypass Switch", "LIN4RXN"},
 833        {"OUT3MIX", "OUT3MIX Left Out PGA Switch", "LOPGA"},
 834
 835        /* OUT4MIX */
 836        {"OUT4MIX", "OUT4MIX Right Out PGA Switch", "ROPGA"},
 837        {"OUT4MIX", "OUT4MIX RIN4RXP Bypass Switch", "RIN4RXP"},
 838
 839        /* RONMIX */
 840        {"RONMIX", "RONMIX Right Mixer PGA Switch", "ROPGA"},
 841        {"RONMIX", "RONMIX Left Mixer PGA Switch", "LOPGA"},
 842        {"RONMIX", "RONMIX Inverted ROP Switch", "ROPMIX"},
 843
 844        /* ROPMIX */
 845        {"ROPMIX", "ROPMIX Left Mic Bypass Switch", "LIN12 PGA"},
 846        {"ROPMIX", "ROPMIX Right Mic Bypass Switch", "RIN12 PGA"},
 847        {"ROPMIX", "ROPMIX Right Mixer PGA Switch", "ROPGA"},
 848
 849        /* Out Mixer PGAs */
 850        {"LOPGA", NULL, "LOMIX"},
 851        {"ROPGA", NULL, "ROMIX"},
 852
 853        {"LOUT PGA", NULL, "LOMIX"},
 854        {"ROUT PGA", NULL, "ROMIX"},
 855
 856        /* Output Pins */
 857        {"LON", NULL, "LONMIX"},
 858        {"LOP", NULL, "LOPMIX"},
 859        {"OUT", NULL, "OUT3MIX"},
 860        {"LOUT", NULL, "LOUT PGA"},
 861        {"SPKN", NULL, "SPKMIX"},
 862        {"ROUT", NULL, "ROUT PGA"},
 863        {"OUT4", NULL, "OUT4MIX"},
 864        {"ROP", NULL, "ROPMIX"},
 865        {"RON", NULL, "RONMIX"},
 866};
 867
 868/* PLL divisors */
 869struct _pll_div {
 870        u32 div2;
 871        u32 n;
 872        u32 k;
 873};
 874
 875/* The size in bits of the pll divide multiplied by 10
 876 * to allow rounding later */
 877#define FIXED_PLL_SIZE ((1 << 16) * 10)
 878
 879static void pll_factors(struct _pll_div *pll_div, unsigned int target,
 880                        unsigned int source)
 881{
 882        u64 Kpart;
 883        unsigned int K, Ndiv, Nmod;
 884
 885
 886        Ndiv = target / source;
 887        if (Ndiv < 6) {
 888                source >>= 1;
 889                pll_div->div2 = 1;
 890                Ndiv = target / source;
 891        } else
 892                pll_div->div2 = 0;
 893
 894        if ((Ndiv < 6) || (Ndiv > 12))
 895                printk(KERN_WARNING
 896                       "WM8991 N value outwith recommended range! N = %d\n", Ndiv);
 897
 898        pll_div->n = Ndiv;
 899        Nmod = target % source;
 900        Kpart = FIXED_PLL_SIZE * (long long)Nmod;
 901
 902        do_div(Kpart, source);
 903
 904        K = Kpart & 0xFFFFFFFF;
 905
 906        /* Check if we need to round */
 907        if ((K % 10) >= 5)
 908                K += 5;
 909
 910        /* Move down to proper range now rounding is done */
 911        K /= 10;
 912
 913        pll_div->k = K;
 914}
 915
 916static int wm8991_set_dai_pll(struct snd_soc_dai *codec_dai,
 917                              int pll_id, int src, unsigned int freq_in, unsigned int freq_out)
 918{
 919        u16 reg;
 920        struct snd_soc_codec *codec = codec_dai->codec;
 921        struct _pll_div pll_div;
 922
 923        if (freq_in && freq_out) {
 924                pll_factors(&pll_div, freq_out * 4, freq_in);
 925
 926                /* Turn on PLL */
 927                reg = snd_soc_read(codec, WM8991_POWER_MANAGEMENT_2);
 928                reg |= WM8991_PLL_ENA;
 929                snd_soc_write(codec, WM8991_POWER_MANAGEMENT_2, reg);
 930
 931                /* sysclk comes from PLL */
 932                reg = snd_soc_read(codec, WM8991_CLOCKING_2);
 933                snd_soc_write(codec, WM8991_CLOCKING_2, reg | WM8991_SYSCLK_SRC);
 934
 935                /* set up N , fractional mode and pre-divisor if necessary */
 936                snd_soc_write(codec, WM8991_PLL1, pll_div.n | WM8991_SDM |
 937                              (pll_div.div2 ? WM8991_PRESCALE : 0));
 938                snd_soc_write(codec, WM8991_PLL2, (u8)(pll_div.k>>8));
 939                snd_soc_write(codec, WM8991_PLL3, (u8)(pll_div.k & 0xFF));
 940        } else {
 941                /* Turn on PLL */
 942                reg = snd_soc_read(codec, WM8991_POWER_MANAGEMENT_2);
 943                reg &= ~WM8991_PLL_ENA;
 944                snd_soc_write(codec, WM8991_POWER_MANAGEMENT_2, reg);
 945        }
 946        return 0;
 947}
 948
 949/*
 950 * Set's ADC and Voice DAC format.
 951 */
 952static int wm8991_set_dai_fmt(struct snd_soc_dai *codec_dai,
 953                              unsigned int fmt)
 954{
 955        struct snd_soc_codec *codec = codec_dai->codec;
 956        u16 audio1, audio3;
 957
 958        audio1 = snd_soc_read(codec, WM8991_AUDIO_INTERFACE_1);
 959        audio3 = snd_soc_read(codec, WM8991_AUDIO_INTERFACE_3);
 960
 961        /* set master/slave audio interface */
 962        switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 963        case SND_SOC_DAIFMT_CBS_CFS:
 964                audio3 &= ~WM8991_AIF_MSTR1;
 965                break;
 966        case SND_SOC_DAIFMT_CBM_CFM:
 967                audio3 |= WM8991_AIF_MSTR1;
 968                break;
 969        default:
 970                return -EINVAL;
 971        }
 972
 973        audio1 &= ~WM8991_AIF_FMT_MASK;
 974
 975        /* interface format */
 976        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 977        case SND_SOC_DAIFMT_I2S:
 978                audio1 |= WM8991_AIF_TMF_I2S;
 979                audio1 &= ~WM8991_AIF_LRCLK_INV;
 980                break;
 981        case SND_SOC_DAIFMT_RIGHT_J:
 982                audio1 |= WM8991_AIF_TMF_RIGHTJ;
 983                audio1 &= ~WM8991_AIF_LRCLK_INV;
 984                break;
 985        case SND_SOC_DAIFMT_LEFT_J:
 986                audio1 |= WM8991_AIF_TMF_LEFTJ;
 987                audio1 &= ~WM8991_AIF_LRCLK_INV;
 988                break;
 989        case SND_SOC_DAIFMT_DSP_A:
 990                audio1 |= WM8991_AIF_TMF_DSP;
 991                audio1 &= ~WM8991_AIF_LRCLK_INV;
 992                break;
 993        case SND_SOC_DAIFMT_DSP_B:
 994                audio1 |= WM8991_AIF_TMF_DSP | WM8991_AIF_LRCLK_INV;
 995                break;
 996        default:
 997                return -EINVAL;
 998        }
 999
1000        snd_soc_write(codec, WM8991_AUDIO_INTERFACE_1, audio1);
1001        snd_soc_write(codec, WM8991_AUDIO_INTERFACE_3, audio3);
1002        return 0;
1003}
1004
1005static int wm8991_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1006                                 int div_id, int div)
1007{
1008        struct snd_soc_codec *codec = codec_dai->codec;
1009        u16 reg;
1010
1011        switch (div_id) {
1012        case WM8991_MCLK_DIV:
1013                reg = snd_soc_read(codec, WM8991_CLOCKING_2) &
1014                      ~WM8991_MCLK_DIV_MASK;
1015                snd_soc_write(codec, WM8991_CLOCKING_2, reg | div);
1016                break;
1017        case WM8991_DACCLK_DIV:
1018                reg = snd_soc_read(codec, WM8991_CLOCKING_2) &
1019                      ~WM8991_DAC_CLKDIV_MASK;
1020                snd_soc_write(codec, WM8991_CLOCKING_2, reg | div);
1021                break;
1022        case WM8991_ADCCLK_DIV:
1023                reg = snd_soc_read(codec, WM8991_CLOCKING_2) &
1024                      ~WM8991_ADC_CLKDIV_MASK;
1025                snd_soc_write(codec, WM8991_CLOCKING_2, reg | div);
1026                break;
1027        case WM8991_BCLK_DIV:
1028                reg = snd_soc_read(codec, WM8991_CLOCKING_1) &
1029                      ~WM8991_BCLK_DIV_MASK;
1030                snd_soc_write(codec, WM8991_CLOCKING_1, reg | div);
1031                break;
1032        default:
1033                return -EINVAL;
1034        }
1035
1036        return 0;
1037}
1038
1039/*
1040 * Set PCM DAI bit size and sample rate.
1041 */
1042static int wm8991_hw_params(struct snd_pcm_substream *substream,
1043                            struct snd_pcm_hw_params *params,
1044                            struct snd_soc_dai *dai)
1045{
1046        struct snd_soc_codec *codec = dai->codec;
1047        u16 audio1 = snd_soc_read(codec, WM8991_AUDIO_INTERFACE_1);
1048
1049        audio1 &= ~WM8991_AIF_WL_MASK;
1050        /* bit size */
1051        switch (params_width(params)) {
1052        case 16:
1053                break;
1054        case 20:
1055                audio1 |= WM8991_AIF_WL_20BITS;
1056                break;
1057        case 24:
1058                audio1 |= WM8991_AIF_WL_24BITS;
1059                break;
1060        case 32:
1061                audio1 |= WM8991_AIF_WL_32BITS;
1062                break;
1063        }
1064
1065        snd_soc_write(codec, WM8991_AUDIO_INTERFACE_1, audio1);
1066        return 0;
1067}
1068
1069static int wm8991_mute(struct snd_soc_dai *dai, int mute)
1070{
1071        struct snd_soc_codec *codec = dai->codec;
1072        u16 val;
1073
1074        val  = snd_soc_read(codec, WM8991_DAC_CTRL) & ~WM8991_DAC_MUTE;
1075        if (mute)
1076                snd_soc_write(codec, WM8991_DAC_CTRL, val | WM8991_DAC_MUTE);
1077        else
1078                snd_soc_write(codec, WM8991_DAC_CTRL, val);
1079        return 0;
1080}
1081
1082static int wm8991_set_bias_level(struct snd_soc_codec *codec,
1083                                 enum snd_soc_bias_level level)
1084{
1085        struct wm8991_priv *wm8991 = snd_soc_codec_get_drvdata(codec);
1086        u16 val;
1087
1088        switch (level) {
1089        case SND_SOC_BIAS_ON:
1090                break;
1091
1092        case SND_SOC_BIAS_PREPARE:
1093                /* VMID=2*50k */
1094                val = snd_soc_read(codec, WM8991_POWER_MANAGEMENT_1) &
1095                      ~WM8991_VMID_MODE_MASK;
1096                snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, val | 0x2);
1097                break;
1098
1099        case SND_SOC_BIAS_STANDBY:
1100                if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
1101                        regcache_sync(wm8991->regmap);
1102                        /* Enable all output discharge bits */
1103                        snd_soc_write(codec, WM8991_ANTIPOP1, WM8991_DIS_LLINE |
1104                                      WM8991_DIS_RLINE | WM8991_DIS_OUT3 |
1105                                      WM8991_DIS_OUT4 | WM8991_DIS_LOUT |
1106                                      WM8991_DIS_ROUT);
1107
1108                        /* Enable POBCTRL, SOFT_ST, VMIDTOG and BUFDCOPEN */
1109                        snd_soc_write(codec, WM8991_ANTIPOP2, WM8991_SOFTST |
1110                                      WM8991_BUFDCOPEN | WM8991_POBCTRL |
1111                                      WM8991_VMIDTOG);
1112
1113                        /* Delay to allow output caps to discharge */
1114                        msleep(300);
1115
1116                        /* Disable VMIDTOG */
1117                        snd_soc_write(codec, WM8991_ANTIPOP2, WM8991_SOFTST |
1118                                      WM8991_BUFDCOPEN | WM8991_POBCTRL);
1119
1120                        /* disable all output discharge bits */
1121                        snd_soc_write(codec, WM8991_ANTIPOP1, 0);
1122
1123                        /* Enable outputs */
1124                        snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x1b00);
1125
1126                        msleep(50);
1127
1128                        /* Enable VMID at 2x50k */
1129                        snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x1f02);
1130
1131                        msleep(100);
1132
1133                        /* Enable VREF */
1134                        snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x1f03);
1135
1136                        msleep(600);
1137
1138                        /* Enable BUFIOEN */
1139                        snd_soc_write(codec, WM8991_ANTIPOP2, WM8991_SOFTST |
1140                                      WM8991_BUFDCOPEN | WM8991_POBCTRL |
1141                                      WM8991_BUFIOEN);
1142
1143                        /* Disable outputs */
1144                        snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x3);
1145
1146                        /* disable POBCTRL, SOFT_ST and BUFDCOPEN */
1147                        snd_soc_write(codec, WM8991_ANTIPOP2, WM8991_BUFIOEN);
1148                }
1149
1150                /* VMID=2*250k */
1151                val = snd_soc_read(codec, WM8991_POWER_MANAGEMENT_1) &
1152                      ~WM8991_VMID_MODE_MASK;
1153                snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, val | 0x4);
1154                break;
1155
1156        case SND_SOC_BIAS_OFF:
1157                /* Enable POBCTRL and SOFT_ST */
1158                snd_soc_write(codec, WM8991_ANTIPOP2, WM8991_SOFTST |
1159                              WM8991_POBCTRL | WM8991_BUFIOEN);
1160
1161                /* Enable POBCTRL, SOFT_ST and BUFDCOPEN */
1162                snd_soc_write(codec, WM8991_ANTIPOP2, WM8991_SOFTST |
1163                              WM8991_BUFDCOPEN | WM8991_POBCTRL |
1164                              WM8991_BUFIOEN);
1165
1166                /* mute DAC */
1167                val = snd_soc_read(codec, WM8991_DAC_CTRL);
1168                snd_soc_write(codec, WM8991_DAC_CTRL, val | WM8991_DAC_MUTE);
1169
1170                /* Enable any disabled outputs */
1171                snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x1f03);
1172
1173                /* Disable VMID */
1174                snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x1f01);
1175
1176                msleep(300);
1177
1178                /* Enable all output discharge bits */
1179                snd_soc_write(codec, WM8991_ANTIPOP1, WM8991_DIS_LLINE |
1180                              WM8991_DIS_RLINE | WM8991_DIS_OUT3 |
1181                              WM8991_DIS_OUT4 | WM8991_DIS_LOUT |
1182                              WM8991_DIS_ROUT);
1183
1184                /* Disable VREF */
1185                snd_soc_write(codec, WM8991_POWER_MANAGEMENT_1, 0x0);
1186
1187                /* disable POBCTRL, SOFT_ST and BUFDCOPEN */
1188                snd_soc_write(codec, WM8991_ANTIPOP2, 0x0);
1189                regcache_mark_dirty(wm8991->regmap);
1190                break;
1191        }
1192
1193        return 0;
1194}
1195
1196#define WM8991_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1197                        SNDRV_PCM_FMTBIT_S24_LE)
1198
1199static const struct snd_soc_dai_ops wm8991_ops = {
1200        .hw_params = wm8991_hw_params,
1201        .digital_mute = wm8991_mute,
1202        .set_fmt = wm8991_set_dai_fmt,
1203        .set_clkdiv = wm8991_set_dai_clkdiv,
1204        .set_pll = wm8991_set_dai_pll
1205};
1206
1207/*
1208 * The WM8991 supports 2 different and mutually exclusive DAI
1209 * configurations.
1210 *
1211 * 1. ADC/DAC on Primary Interface
1212 * 2. ADC on Primary Interface/DAC on secondary
1213 */
1214static struct snd_soc_dai_driver wm8991_dai = {
1215        /* ADC/DAC on primary */
1216        .name = "wm8991",
1217        .id = 1,
1218        .playback = {
1219                .stream_name = "Playback",
1220                .channels_min = 1,
1221                .channels_max = 2,
1222                .rates = SNDRV_PCM_RATE_8000_96000,
1223                .formats = WM8991_FORMATS
1224        },
1225        .capture = {
1226                .stream_name = "Capture",
1227                .channels_min = 1,
1228                .channels_max = 2,
1229                .rates = SNDRV_PCM_RATE_8000_96000,
1230                .formats = WM8991_FORMATS
1231        },
1232        .ops = &wm8991_ops
1233};
1234
1235static struct snd_soc_codec_driver soc_codec_dev_wm8991 = {
1236        .set_bias_level = wm8991_set_bias_level,
1237        .suspend_bias_off = true,
1238
1239        .controls = wm8991_snd_controls,
1240        .num_controls = ARRAY_SIZE(wm8991_snd_controls),
1241        .dapm_widgets = wm8991_dapm_widgets,
1242        .num_dapm_widgets = ARRAY_SIZE(wm8991_dapm_widgets),
1243        .dapm_routes = wm8991_dapm_routes,
1244        .num_dapm_routes = ARRAY_SIZE(wm8991_dapm_routes),
1245};
1246
1247static const struct regmap_config wm8991_regmap = {
1248        .reg_bits = 8,
1249        .val_bits = 16,
1250
1251        .max_register = WM8991_PLL3,
1252        .volatile_reg = wm8991_volatile,
1253        .reg_defaults = wm8991_reg_defaults,
1254        .num_reg_defaults = ARRAY_SIZE(wm8991_reg_defaults),
1255        .cache_type = REGCACHE_RBTREE,
1256};
1257
1258static int wm8991_i2c_probe(struct i2c_client *i2c,
1259                            const struct i2c_device_id *id)
1260{
1261        struct wm8991_priv *wm8991;
1262        unsigned int val;
1263        int ret;
1264
1265        wm8991 = devm_kzalloc(&i2c->dev, sizeof(*wm8991), GFP_KERNEL);
1266        if (!wm8991)
1267                return -ENOMEM;
1268
1269        wm8991->regmap = devm_regmap_init_i2c(i2c, &wm8991_regmap);
1270        if (IS_ERR(wm8991->regmap))
1271                return PTR_ERR(wm8991->regmap);
1272
1273        i2c_set_clientdata(i2c, wm8991);
1274
1275        ret = regmap_read(wm8991->regmap, WM8991_RESET, &val);
1276        if (ret != 0) {
1277                dev_err(&i2c->dev, "Failed to read device ID: %d\n", ret);
1278                return ret;
1279        }
1280        if (val != 0x8991) {
1281                dev_err(&i2c->dev, "Device with ID %x is not a WM8991\n", val);
1282                return -EINVAL;
1283        }
1284
1285        ret = regmap_write(wm8991->regmap, WM8991_RESET, 0);
1286        if (ret < 0) {
1287                dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
1288                return ret;
1289        }
1290
1291        regmap_update_bits(wm8991->regmap, WM8991_AUDIO_INTERFACE_4,
1292                           WM8991_ALRCGPIO1, WM8991_ALRCGPIO1);
1293
1294        regmap_update_bits(wm8991->regmap, WM8991_GPIO1_GPIO2,
1295                           WM8991_GPIO1_SEL_MASK, 1);
1296
1297        regmap_update_bits(wm8991->regmap, WM8991_POWER_MANAGEMENT_1,
1298                           WM8991_VREF_ENA | WM8991_VMID_MODE_MASK,
1299                           WM8991_VREF_ENA | WM8991_VMID_MODE_MASK);
1300
1301        regmap_update_bits(wm8991->regmap, WM8991_POWER_MANAGEMENT_2,
1302                           WM8991_OPCLK_ENA, WM8991_OPCLK_ENA);
1303
1304        regmap_write(wm8991->regmap, WM8991_DAC_CTRL, 0);
1305        regmap_write(wm8991->regmap, WM8991_LEFT_OUTPUT_VOLUME,
1306                     0x50 | (1<<8));
1307        regmap_write(wm8991->regmap, WM8991_RIGHT_OUTPUT_VOLUME,
1308                     0x50 | (1<<8));
1309
1310        ret = snd_soc_register_codec(&i2c->dev,
1311                                     &soc_codec_dev_wm8991, &wm8991_dai, 1);
1312
1313        return ret;
1314}
1315
1316static int wm8991_i2c_remove(struct i2c_client *client)
1317{
1318        snd_soc_unregister_codec(&client->dev);
1319
1320        return 0;
1321}
1322
1323static const struct i2c_device_id wm8991_i2c_id[] = {
1324        { "wm8991", 0 },
1325        { }
1326};
1327MODULE_DEVICE_TABLE(i2c, wm8991_i2c_id);
1328
1329static struct i2c_driver wm8991_i2c_driver = {
1330        .driver = {
1331                .name = "wm8991",
1332        },
1333        .probe = wm8991_i2c_probe,
1334        .remove = wm8991_i2c_remove,
1335        .id_table = wm8991_i2c_id,
1336};
1337
1338module_i2c_driver(wm8991_i2c_driver);
1339
1340MODULE_DESCRIPTION("ASoC WM8991 driver");
1341MODULE_AUTHOR("Graeme Gregory");
1342MODULE_LICENSE("GPL");
1343