linux/sound/soc/codecs/wm8753.c
<<
>>
Prefs
   1/*
   2 * wm8753.c  --  WM8753 ALSA Soc Audio driver
   3 *
   4 * Copyright 2003-11 Wolfson Microelectronics PLC.
   5 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
   6 *
   7 *  This program is free software; you can redistribute  it and/or modify it
   8 *  under  the terms of  the GNU General  Public License as published by the
   9 *  Free Software Foundation;  either version 2 of the  License, or (at your
  10 *  option) any later version.
  11 *
  12 * Notes:
  13 *  The WM8753 is a low power, high quality stereo codec with integrated PCM
  14 *  codec designed for portable digital telephony applications.
  15 *
  16 * Dual DAI:-
  17 *
  18 * This driver support 2 DAI PCM's. This makes the default PCM available for
  19 * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for
  20 * voice.
  21 *
  22 * Please note that the voice PCM can be connected directly to a Bluetooth
  23 * codec or GSM modem and thus cannot be read or written to, although it is
  24 * available to be configured with snd_hw_params(), etc and kcontrols in the
  25 * normal alsa manner.
  26 *
  27 * Fast DAI switching:-
  28 *
  29 * The driver can now fast switch between the DAI configurations via a
  30 * an alsa kcontrol. This allows the PCM to remain open.
  31 *
  32 */
  33
  34#include <linux/module.h>
  35#include <linux/kernel.h>
  36#include <linux/init.h>
  37#include <linux/delay.h>
  38#include <linux/pm.h>
  39#include <linux/i2c.h>
  40#include <linux/of_device.h>
  41#include <linux/regmap.h>
  42#include <linux/spi/spi.h>
  43#include <linux/slab.h>
  44#include <sound/core.h>
  45#include <sound/pcm.h>
  46#include <sound/pcm_params.h>
  47#include <sound/soc.h>
  48#include <sound/initval.h>
  49#include <sound/tlv.h>
  50#include <asm/div64.h>
  51
  52#include "wm8753.h"
  53
  54static int caps_charge = 2000;
  55module_param(caps_charge, int, 0);
  56MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
  57
  58static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
  59                unsigned int fmt);
  60static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
  61                unsigned int fmt);
  62
  63/*
  64 * wm8753 register cache
  65 * We can't read the WM8753 register space when we
  66 * are using 2 wire for device control, so we cache them instead.
  67 */
  68static const struct reg_default wm8753_reg_defaults[] = {
  69        { 0x00, 0x0000 },
  70        { 0x01, 0x0008 },
  71        { 0x02, 0x0000 },
  72        { 0x03, 0x000a },
  73        { 0x04, 0x000a },
  74        { 0x05, 0x0033 },
  75        { 0x06, 0x0000 },
  76        { 0x07, 0x0007 },
  77        { 0x08, 0x00ff },
  78        { 0x09, 0x00ff },
  79        { 0x0a, 0x000f },
  80        { 0x0b, 0x000f },
  81        { 0x0c, 0x007b },
  82        { 0x0d, 0x0000 },
  83        { 0x0e, 0x0032 },
  84        { 0x0f, 0x0000 },
  85        { 0x10, 0x00c3 },
  86        { 0x11, 0x00c3 },
  87        { 0x12, 0x00c0 },
  88        { 0x13, 0x0000 },
  89        { 0x14, 0x0000 },
  90        { 0x15, 0x0000 },
  91        { 0x16, 0x0000 },
  92        { 0x17, 0x0000 },
  93        { 0x18, 0x0000 },
  94        { 0x19, 0x0000 },
  95        { 0x1a, 0x0000 },
  96        { 0x1b, 0x0000 },
  97        { 0x1c, 0x0000 },
  98        { 0x1d, 0x0000 },
  99        { 0x1e, 0x0000 },
 100        { 0x1f, 0x0000 },
 101        { 0x20, 0x0055 },
 102        { 0x21, 0x0005 },
 103        { 0x22, 0x0050 },
 104        { 0x23, 0x0055 },
 105        { 0x24, 0x0050 },
 106        { 0x25, 0x0055 },
 107        { 0x26, 0x0050 },
 108        { 0x27, 0x0055 },
 109        { 0x28, 0x0079 },
 110        { 0x29, 0x0079 },
 111        { 0x2a, 0x0079 },
 112        { 0x2b, 0x0079 },
 113        { 0x2c, 0x0079 },
 114        { 0x2d, 0x0000 },
 115        { 0x2e, 0x0000 },
 116        { 0x2f, 0x0000 },
 117        { 0x30, 0x0000 },
 118        { 0x31, 0x0097 },
 119        { 0x32, 0x0097 },
 120        { 0x33, 0x0000 },
 121        { 0x34, 0x0004 },
 122        { 0x35, 0x0000 },
 123        { 0x36, 0x0083 },
 124        { 0x37, 0x0024 },
 125        { 0x38, 0x01ba },
 126        { 0x39, 0x0000 },
 127        { 0x3a, 0x0083 },
 128        { 0x3b, 0x0024 },
 129        { 0x3c, 0x01ba },
 130        { 0x3d, 0x0000 },
 131        { 0x3e, 0x0000 },
 132        { 0x3f, 0x0000 },
 133};
 134
 135static bool wm8753_volatile(struct device *dev, unsigned int reg)
 136{
 137        return reg == WM8753_RESET;
 138}
 139
 140/* codec private data */
 141struct wm8753_priv {
 142        struct regmap *regmap;
 143        unsigned int sysclk;
 144        unsigned int pcmclk;
 145
 146        unsigned int voice_fmt;
 147        unsigned int hifi_fmt;
 148
 149        int dai_func;
 150        struct delayed_work charge_work;
 151};
 152
 153#define wm8753_reset(c) snd_soc_write(c, WM8753_RESET, 0)
 154
 155/*
 156 * WM8753 Controls
 157 */
 158static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
 159static const char *wm8753_base_filter[] =
 160        {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
 161        "100Hz @ 8kHz", "200Hz @ 8kHz"};
 162static const char *wm8753_treble[] = {"8kHz", "4kHz"};
 163static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
 164static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
 165static const char *wm8753_3d_func[] = {"Capture", "Playback"};
 166static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
 167static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
 168static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
 169static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
 170static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
 171static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
 172        "Line 1", "Line 2"};
 173static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
 174static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
 175static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
 176static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
 177static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
 178        "Right PGA"};
 179static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
 180        "Left + Right"};
 181static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
 182static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
 183static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
 184static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
 185static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
 186        "Analogue Mix Right", "Digital Mono Mix"};
 187static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
 188        "82Hz @ 8kHz", "170Hz @ 8kHz"};
 189static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
 190static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
 191static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
 192static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
 193        "Channel Swap"};
 194static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};
 195
 196static const struct soc_enum wm8753_enum[] = {
 197SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
 198SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
 199SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
 200SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
 201SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
 202SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
 203SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
 204SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
 205SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
 206SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
 207SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
 208SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
 209SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
 210SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
 211SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
 212SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
 213SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
 214SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
 215SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
 216SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
 217SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
 218SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
 219SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
 220SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
 221SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
 222SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
 223SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
 224SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
 225SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
 226};
 227
 228
 229static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
 230        struct snd_ctl_elem_value *ucontrol)
 231{
 232        struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 233        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
 234
 235        ucontrol->value.enumerated.item[0] = wm8753->dai_func;
 236        return 0;
 237}
 238
 239static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
 240        struct snd_ctl_elem_value *ucontrol)
 241{
 242        struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 243        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
 244        u16 ioctl;
 245
 246        if (wm8753->dai_func == ucontrol->value.enumerated.item[0])
 247                return 0;
 248
 249        if (snd_soc_codec_is_active(codec))
 250                return -EBUSY;
 251
 252        ioctl = snd_soc_read(codec, WM8753_IOCTL);
 253
 254        wm8753->dai_func = ucontrol->value.enumerated.item[0];
 255
 256        if (((ioctl >> 2) & 0x3) == wm8753->dai_func)
 257                return 1;
 258
 259        ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2);
 260        snd_soc_write(codec, WM8753_IOCTL, ioctl);
 261
 262
 263        wm8753_hifi_write_dai_fmt(codec, wm8753->hifi_fmt);
 264        wm8753_voice_write_dai_fmt(codec, wm8753->voice_fmt);
 265
 266        return 1;
 267}
 268
 269static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
 270static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
 271static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
 272static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
 273static const DECLARE_TLV_DB_RANGE(out_tlv,
 274        /* 0000000 - 0101111 = "Analogue mute" */
 275        0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
 276        48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0)
 277);
 278static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
 279static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
 280static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
 281
 282static const struct snd_kcontrol_new wm8753_snd_controls[] = {
 283SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
 284
 285SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
 286                 adc_tlv),
 287
 288SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
 289                 0, 127, 0, out_tlv),
 290SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
 291                 127, 0, out_tlv),
 292
 293SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
 294
 295SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
 296                 1, mix_tlv),
 297SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
 298                 7, 1, mix_tlv),
 299SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
 300                 1, voice_mix_tlv),
 301
 302SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
 303             1, 0),
 304SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
 305             1, 0),
 306
 307SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
 308SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
 309               mix_tlv),
 310SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
 311               voice_mix_tlv),
 312SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
 313
 314SOC_ENUM("Bass Boost", wm8753_enum[0]),
 315SOC_ENUM("Bass Filter", wm8753_enum[1]),
 316SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
 317
 318SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
 319SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
 320
 321SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
 322               rec_mix_tlv),
 323SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
 324               rec_mix_tlv),
 325
 326SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
 327                 pga_tlv),
 328SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
 329SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
 330
 331SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
 332SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
 333SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
 334
 335SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
 336SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
 337SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
 338SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
 339SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
 340SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
 341SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
 342SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
 343SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
 344SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
 345
 346SOC_ENUM("3D Function", wm8753_enum[5]),
 347SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
 348SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
 349SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
 350SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
 351
 352SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
 353SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
 354
 355SOC_ENUM("De-emphasis", wm8753_enum[8]),
 356SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
 357SOC_ENUM("Playback Phase", wm8753_enum[10]),
 358
 359SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
 360SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
 361
 362SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
 363
 364SOC_ENUM("ADC Data Select", wm8753_enum[27]),
 365SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
 366};
 367
 368/*
 369 * _DAPM_ Controls
 370 */
 371
 372/* Left Mixer */
 373static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
 374SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
 375SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
 376SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
 377SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
 378};
 379
 380/* Right mixer */
 381static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
 382SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
 383SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
 384SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
 385SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
 386};
 387
 388/* Mono mixer */
 389static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
 390SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
 391SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
 392SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
 393SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
 394SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
 395};
 396
 397/* Mono 2 Mux */
 398static const struct snd_kcontrol_new wm8753_mono2_controls =
 399SOC_DAPM_ENUM("Route", wm8753_enum[17]);
 400
 401/* Out 3 Mux */
 402static const struct snd_kcontrol_new wm8753_out3_controls =
 403SOC_DAPM_ENUM("Route", wm8753_enum[18]);
 404
 405/* Out 4 Mux */
 406static const struct snd_kcontrol_new wm8753_out4_controls =
 407SOC_DAPM_ENUM("Route", wm8753_enum[19]);
 408
 409/* ADC Mono Mix */
 410static const struct snd_kcontrol_new wm8753_adc_mono_controls =
 411SOC_DAPM_ENUM("Route", wm8753_enum[22]);
 412
 413/* Record mixer */
 414static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
 415SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
 416SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
 417SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
 418};
 419
 420/* Left ADC mux */
 421static const struct snd_kcontrol_new wm8753_adc_left_controls =
 422SOC_DAPM_ENUM("Route", wm8753_enum[21]);
 423
 424/* Right ADC mux */
 425static const struct snd_kcontrol_new wm8753_adc_right_controls =
 426SOC_DAPM_ENUM("Route", wm8753_enum[20]);
 427
 428/* MIC mux */
 429static const struct snd_kcontrol_new wm8753_mic_mux_controls =
 430SOC_DAPM_ENUM("Route", wm8753_enum[16]);
 431
 432/* ALC mixer */
 433static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
 434SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
 435SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
 436SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
 437SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
 438};
 439
 440/* Left Line mux */
 441static const struct snd_kcontrol_new wm8753_line_left_controls =
 442SOC_DAPM_ENUM("Route", wm8753_enum[14]);
 443
 444/* Right Line mux */
 445static const struct snd_kcontrol_new wm8753_line_right_controls =
 446SOC_DAPM_ENUM("Route", wm8753_enum[13]);
 447
 448/* Mono Line mux */
 449static const struct snd_kcontrol_new wm8753_line_mono_controls =
 450SOC_DAPM_ENUM("Route", wm8753_enum[12]);
 451
 452/* Line mux and mixer */
 453static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
 454SOC_DAPM_ENUM("Route", wm8753_enum[11]);
 455
 456/* Rx mux and mixer */
 457static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
 458SOC_DAPM_ENUM("Route", wm8753_enum[15]);
 459
 460/* Mic Selector Mux */
 461static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
 462SOC_DAPM_ENUM("Route", wm8753_enum[25]);
 463
 464static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
 465SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
 466SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
 467        &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
 468SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
 469SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
 470SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
 471SND_SOC_DAPM_OUTPUT("LOUT1"),
 472SND_SOC_DAPM_OUTPUT("LOUT2"),
 473SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
 474        &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
 475SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
 476SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
 477SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
 478SND_SOC_DAPM_OUTPUT("ROUT1"),
 479SND_SOC_DAPM_OUTPUT("ROUT2"),
 480SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
 481        &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
 482SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
 483SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
 484SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
 485SND_SOC_DAPM_OUTPUT("MONO1"),
 486SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
 487SND_SOC_DAPM_OUTPUT("MONO2"),
 488SND_SOC_DAPM_MIXER("Out3 Left + Right", SND_SOC_NOPM, 0, 0, NULL, 0),
 489SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
 490SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
 491SND_SOC_DAPM_OUTPUT("OUT3"),
 492SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
 493SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
 494SND_SOC_DAPM_OUTPUT("OUT4"),
 495SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
 496        &wm8753_record_mixer_controls[0],
 497        ARRAY_SIZE(wm8753_record_mixer_controls)),
 498SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
 499SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
 500SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
 501        &wm8753_adc_mono_controls),
 502SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
 503        &wm8753_adc_mono_controls),
 504SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
 505        &wm8753_adc_left_controls),
 506SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
 507        &wm8753_adc_right_controls),
 508SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
 509        &wm8753_mic_mux_controls),
 510SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
 511SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
 512SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
 513        &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
 514SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
 515        &wm8753_line_left_controls),
 516SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
 517        &wm8753_line_right_controls),
 518SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
 519        &wm8753_line_mono_controls),
 520SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
 521        &wm8753_line_mux_mix_controls),
 522SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
 523        &wm8753_rx_mux_mix_controls),
 524SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
 525SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
 526SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
 527        &wm8753_mic_sel_mux_controls),
 528SND_SOC_DAPM_INPUT("LINE1"),
 529SND_SOC_DAPM_INPUT("LINE2"),
 530SND_SOC_DAPM_INPUT("RXP"),
 531SND_SOC_DAPM_INPUT("RXN"),
 532SND_SOC_DAPM_INPUT("ACIN"),
 533SND_SOC_DAPM_OUTPUT("ACOP"),
 534SND_SOC_DAPM_INPUT("MIC1N"),
 535SND_SOC_DAPM_INPUT("MIC1"),
 536SND_SOC_DAPM_INPUT("MIC2N"),
 537SND_SOC_DAPM_INPUT("MIC2"),
 538SND_SOC_DAPM_VMID("VREF"),
 539};
 540
 541static const struct snd_soc_dapm_route wm8753_dapm_routes[] = {
 542        /* left mixer */
 543        {"Left Mixer", "Left Playback Switch", "Left DAC"},
 544        {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
 545        {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
 546        {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
 547
 548        /* right mixer */
 549        {"Right Mixer", "Right Playback Switch", "Right DAC"},
 550        {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
 551        {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
 552        {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
 553
 554        /* mono mixer */
 555        {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
 556        {"Mono Mixer", "Left Playback Switch", "Left DAC"},
 557        {"Mono Mixer", "Right Playback Switch", "Right DAC"},
 558        {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
 559        {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
 560
 561        /* left out */
 562        {"Left Out 1", NULL, "Left Mixer"},
 563        {"Left Out 2", NULL, "Left Mixer"},
 564        {"LOUT1", NULL, "Left Out 1"},
 565        {"LOUT2", NULL, "Left Out 2"},
 566
 567        /* right out */
 568        {"Right Out 1", NULL, "Right Mixer"},
 569        {"Right Out 2", NULL, "Right Mixer"},
 570        {"ROUT1", NULL, "Right Out 1"},
 571        {"ROUT2", NULL, "Right Out 2"},
 572
 573        /* mono 1 out */
 574        {"Mono Out 1", NULL, "Mono Mixer"},
 575        {"MONO1", NULL, "Mono Out 1"},
 576
 577        /* mono 2 out */
 578        {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
 579        {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
 580        {"Mono 2 Mux", "Left", "Left Mixer"},
 581        {"Mono 2 Mux", "Right", "Right Mixer"},
 582        {"Mono Out 2", NULL, "Mono 2 Mux"},
 583        {"MONO2", NULL, "Mono Out 2"},
 584
 585        /* out 3 */
 586        {"Out3 Left + Right", NULL, "Left Mixer"},
 587        {"Out3 Left + Right", NULL, "Right Mixer"},
 588        {"Out3 Mux", "VREF", "VREF"},
 589        {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
 590        {"Out3 Mux", "ROUT2", "ROUT2"},
 591        {"Out 3", NULL, "Out3 Mux"},
 592        {"OUT3", NULL, "Out 3"},
 593
 594        /* out 4 */
 595        {"Out4 Mux", "VREF", "VREF"},
 596        {"Out4 Mux", "Capture ST", "Playback Mixer"},
 597        {"Out4 Mux", "LOUT2", "LOUT2"},
 598        {"Out 4", NULL, "Out4 Mux"},
 599        {"OUT4", NULL, "Out 4"},
 600
 601        /* record mixer  */
 602        {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
 603        {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
 604        {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
 605
 606        /* Mic/SideTone Mux */
 607        {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
 608        {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
 609        {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
 610        {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
 611
 612        /* Capture Left Mux */
 613        {"Capture Left Mux", "PGA", "Left Capture Volume"},
 614        {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
 615        {"Capture Left Mux", "Line", "LINE1"},
 616
 617        /* Capture Right Mux */
 618        {"Capture Right Mux", "PGA", "Right Capture Volume"},
 619        {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
 620        {"Capture Right Mux", "Sidetone", "Playback Mixer"},
 621
 622        /* Mono Capture mixer-mux */
 623        {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
 624        {"Capture Left Mixer", "Stereo", "Capture Left Mux"},
 625        {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
 626        {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
 627        {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
 628        {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
 629        {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
 630        {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
 631        {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
 632        {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
 633
 634        /* ADC */
 635        {"Left ADC", NULL, "Capture Left Mixer"},
 636        {"Right ADC", NULL, "Capture Right Mixer"},
 637
 638        /* Left Capture Volume */
 639        {"Left Capture Volume", NULL, "ACIN"},
 640
 641        /* Right Capture Volume */
 642        {"Right Capture Volume", NULL, "Mic 2 Volume"},
 643
 644        /* ALC Mixer */
 645        {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
 646        {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
 647        {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
 648        {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
 649
 650        /* Line Left Mux */
 651        {"Line Left Mux", "Line 1", "LINE1"},
 652        {"Line Left Mux", "Rx Mix", "Rx Mixer"},
 653
 654        /* Line Right Mux */
 655        {"Line Right Mux", "Line 2", "LINE2"},
 656        {"Line Right Mux", "Rx Mix", "Rx Mixer"},
 657
 658        /* Line Mono Mux */
 659        {"Line Mono Mux", "Line Mix", "Line Mixer"},
 660        {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
 661
 662        /* Line Mixer/Mux */
 663        {"Line Mixer", "Line 1 + 2", "LINE1"},
 664        {"Line Mixer", "Line 1 - 2", "LINE1"},
 665        {"Line Mixer", "Line 1 + 2", "LINE2"},
 666        {"Line Mixer", "Line 1 - 2", "LINE2"},
 667        {"Line Mixer", "Line 1", "LINE1"},
 668        {"Line Mixer", "Line 2", "LINE2"},
 669
 670        /* Rx Mixer/Mux */
 671        {"Rx Mixer", "RXP - RXN", "RXP"},
 672        {"Rx Mixer", "RXP + RXN", "RXP"},
 673        {"Rx Mixer", "RXP - RXN", "RXN"},
 674        {"Rx Mixer", "RXP + RXN", "RXN"},
 675        {"Rx Mixer", "RXP", "RXP"},
 676        {"Rx Mixer", "RXN", "RXN"},
 677
 678        /* Mic 1 Volume */
 679        {"Mic 1 Volume", NULL, "MIC1N"},
 680        {"Mic 1 Volume", NULL, "Mic Selection Mux"},
 681
 682        /* Mic 2 Volume */
 683        {"Mic 2 Volume", NULL, "MIC2N"},
 684        {"Mic 2 Volume", NULL, "MIC2"},
 685
 686        /* Mic Selector Mux */
 687        {"Mic Selection Mux", "Mic 1", "MIC1"},
 688        {"Mic Selection Mux", "Mic 2", "MIC2N"},
 689        {"Mic Selection Mux", "Mic 3", "MIC2"},
 690
 691        /* ACOP */
 692        {"ACOP", NULL, "ALC Mixer"},
 693};
 694
 695/* PLL divisors */
 696struct _pll_div {
 697        u32 div2:1;
 698        u32 n:4;
 699        u32 k:24;
 700};
 701
 702/* The size in bits of the pll divide multiplied by 10
 703 * to allow rounding later */
 704#define FIXED_PLL_SIZE ((1 << 22) * 10)
 705
 706static void pll_factors(struct _pll_div *pll_div, unsigned int target,
 707        unsigned int source)
 708{
 709        u64 Kpart;
 710        unsigned int K, Ndiv, Nmod;
 711
 712        Ndiv = target / source;
 713        if (Ndiv < 6) {
 714                source >>= 1;
 715                pll_div->div2 = 1;
 716                Ndiv = target / source;
 717        } else
 718                pll_div->div2 = 0;
 719
 720        if ((Ndiv < 6) || (Ndiv > 12))
 721                printk(KERN_WARNING
 722                        "wm8753: unsupported N = %u\n", Ndiv);
 723
 724        pll_div->n = Ndiv;
 725        Nmod = target % source;
 726        Kpart = FIXED_PLL_SIZE * (long long)Nmod;
 727
 728        do_div(Kpart, source);
 729
 730        K = Kpart & 0xFFFFFFFF;
 731
 732        /* Check if we need to round */
 733        if ((K % 10) >= 5)
 734                K += 5;
 735
 736        /* Move down to proper range now rounding is done */
 737        K /= 10;
 738
 739        pll_div->k = K;
 740}
 741
 742static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
 743                int source, unsigned int freq_in, unsigned int freq_out)
 744{
 745        u16 reg, enable;
 746        int offset;
 747        struct snd_soc_codec *codec = codec_dai->codec;
 748
 749        if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
 750                return -ENODEV;
 751
 752        if (pll_id == WM8753_PLL1) {
 753                offset = 0;
 754                enable = 0x10;
 755                reg = snd_soc_read(codec, WM8753_CLOCK) & 0xffef;
 756        } else {
 757                offset = 4;
 758                enable = 0x8;
 759                reg = snd_soc_read(codec, WM8753_CLOCK) & 0xfff7;
 760        }
 761
 762        if (!freq_in || !freq_out) {
 763                /* disable PLL  */
 764                snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
 765                snd_soc_write(codec, WM8753_CLOCK, reg);
 766                return 0;
 767        } else {
 768                u16 value = 0;
 769                struct _pll_div pll_div;
 770
 771                pll_factors(&pll_div, freq_out * 8, freq_in);
 772
 773                /* set up N and K PLL divisor ratios */
 774                /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
 775                value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
 776                snd_soc_write(codec, WM8753_PLL1CTL2 + offset, value);
 777
 778                /* bits 8:0 = PLL_K[17:9] */
 779                value = (pll_div.k & 0x03fe00) >> 9;
 780                snd_soc_write(codec, WM8753_PLL1CTL3 + offset, value);
 781
 782                /* bits 8:0 = PLL_K[8:0] */
 783                value = pll_div.k & 0x0001ff;
 784                snd_soc_write(codec, WM8753_PLL1CTL4 + offset, value);
 785
 786                /* set PLL as input and enable */
 787                snd_soc_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
 788                        (pll_div.div2 << 3));
 789                snd_soc_write(codec, WM8753_CLOCK, reg | enable);
 790        }
 791        return 0;
 792}
 793
 794struct _coeff_div {
 795        u32 mclk;
 796        u32 rate;
 797        u8 sr:5;
 798        u8 usb:1;
 799};
 800
 801/* codec hifi mclk (after PLL) clock divider coefficients */
 802static const struct _coeff_div coeff_div[] = {
 803        /* 8k */
 804        {12288000, 8000, 0x6, 0x0},
 805        {11289600, 8000, 0x16, 0x0},
 806        {18432000, 8000, 0x7, 0x0},
 807        {16934400, 8000, 0x17, 0x0},
 808        {12000000, 8000, 0x6, 0x1},
 809
 810        /* 11.025k */
 811        {11289600, 11025, 0x18, 0x0},
 812        {16934400, 11025, 0x19, 0x0},
 813        {12000000, 11025, 0x19, 0x1},
 814
 815        /* 16k */
 816        {12288000, 16000, 0xa, 0x0},
 817        {18432000, 16000, 0xb, 0x0},
 818        {12000000, 16000, 0xa, 0x1},
 819
 820        /* 22.05k */
 821        {11289600, 22050, 0x1a, 0x0},
 822        {16934400, 22050, 0x1b, 0x0},
 823        {12000000, 22050, 0x1b, 0x1},
 824
 825        /* 32k */
 826        {12288000, 32000, 0xc, 0x0},
 827        {18432000, 32000, 0xd, 0x0},
 828        {12000000, 32000, 0xa, 0x1},
 829
 830        /* 44.1k */
 831        {11289600, 44100, 0x10, 0x0},
 832        {16934400, 44100, 0x11, 0x0},
 833        {12000000, 44100, 0x11, 0x1},
 834
 835        /* 48k */
 836        {12288000, 48000, 0x0, 0x0},
 837        {18432000, 48000, 0x1, 0x0},
 838        {12000000, 48000, 0x0, 0x1},
 839
 840        /* 88.2k */
 841        {11289600, 88200, 0x1e, 0x0},
 842        {16934400, 88200, 0x1f, 0x0},
 843        {12000000, 88200, 0x1f, 0x1},
 844
 845        /* 96k */
 846        {12288000, 96000, 0xe, 0x0},
 847        {18432000, 96000, 0xf, 0x0},
 848        {12000000, 96000, 0xe, 0x1},
 849};
 850
 851static int get_coeff(int mclk, int rate)
 852{
 853        int i;
 854
 855        for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
 856                if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
 857                        return i;
 858        }
 859        return -EINVAL;
 860}
 861
 862/*
 863 * Clock after PLL and dividers
 864 */
 865static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 866                int clk_id, unsigned int freq, int dir)
 867{
 868        struct snd_soc_codec *codec = codec_dai->codec;
 869        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
 870
 871        switch (freq) {
 872        case 11289600:
 873        case 12000000:
 874        case 12288000:
 875        case 16934400:
 876        case 18432000:
 877                if (clk_id == WM8753_MCLK) {
 878                        wm8753->sysclk = freq;
 879                        return 0;
 880                } else if (clk_id == WM8753_PCMCLK) {
 881                        wm8753->pcmclk = freq;
 882                        return 0;
 883                }
 884                break;
 885        }
 886        return -EINVAL;
 887}
 888
 889/*
 890 * Set's ADC and Voice DAC format.
 891 */
 892static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec *codec,
 893                unsigned int fmt)
 894{
 895        u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01ec;
 896
 897        /* interface format */
 898        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 899        case SND_SOC_DAIFMT_I2S:
 900                voice |= 0x0002;
 901                break;
 902        case SND_SOC_DAIFMT_RIGHT_J:
 903                break;
 904        case SND_SOC_DAIFMT_LEFT_J:
 905                voice |= 0x0001;
 906                break;
 907        case SND_SOC_DAIFMT_DSP_A:
 908                voice |= 0x0003;
 909                break;
 910        case SND_SOC_DAIFMT_DSP_B:
 911                voice |= 0x0013;
 912                break;
 913        default:
 914                return -EINVAL;
 915        }
 916
 917        snd_soc_write(codec, WM8753_PCM, voice);
 918        return 0;
 919}
 920
 921/*
 922 * Set PCM DAI bit size and sample rate.
 923 */
 924static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
 925                                struct snd_pcm_hw_params *params,
 926                                struct snd_soc_dai *dai)
 927{
 928        struct snd_soc_codec *codec = dai->codec;
 929        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
 930        u16 voice = snd_soc_read(codec, WM8753_PCM) & 0x01f3;
 931        u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x017f;
 932
 933        /* bit size */
 934        switch (params_width(params)) {
 935        case 16:
 936                break;
 937        case 20:
 938                voice |= 0x0004;
 939                break;
 940        case 24:
 941                voice |= 0x0008;
 942                break;
 943        case 32:
 944                voice |= 0x000c;
 945                break;
 946        }
 947
 948        /* sample rate */
 949        if (params_rate(params) * 384 == wm8753->pcmclk)
 950                srate |= 0x80;
 951        snd_soc_write(codec, WM8753_SRATE1, srate);
 952
 953        snd_soc_write(codec, WM8753_PCM, voice);
 954        return 0;
 955}
 956
 957/*
 958 * Set's PCM dai fmt and BCLK.
 959 */
 960static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec *codec,
 961                unsigned int fmt)
 962{
 963        u16 voice, ioctl;
 964
 965        voice = snd_soc_read(codec, WM8753_PCM) & 0x011f;
 966        ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x015d;
 967
 968        /* set master/slave audio interface */
 969        switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 970        case SND_SOC_DAIFMT_CBS_CFS:
 971                break;
 972        case SND_SOC_DAIFMT_CBM_CFM:
 973                ioctl |= 0x2;
 974        case SND_SOC_DAIFMT_CBM_CFS:
 975                voice |= 0x0040;
 976                break;
 977        default:
 978                return -EINVAL;
 979        }
 980
 981        /* clock inversion */
 982        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 983        case SND_SOC_DAIFMT_DSP_A:
 984        case SND_SOC_DAIFMT_DSP_B:
 985                /* frame inversion not valid for DSP modes */
 986                switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 987                case SND_SOC_DAIFMT_NB_NF:
 988                        break;
 989                case SND_SOC_DAIFMT_IB_NF:
 990                        voice |= 0x0080;
 991                        break;
 992                default:
 993                        return -EINVAL;
 994                }
 995                break;
 996        case SND_SOC_DAIFMT_I2S:
 997        case SND_SOC_DAIFMT_RIGHT_J:
 998        case SND_SOC_DAIFMT_LEFT_J:
 999                voice &= ~0x0010;
1000                switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1001                case SND_SOC_DAIFMT_NB_NF:
1002                        break;
1003                case SND_SOC_DAIFMT_IB_IF:
1004                        voice |= 0x0090;
1005                        break;
1006                case SND_SOC_DAIFMT_IB_NF:
1007                        voice |= 0x0080;
1008                        break;
1009                case SND_SOC_DAIFMT_NB_IF:
1010                        voice |= 0x0010;
1011                        break;
1012                default:
1013                        return -EINVAL;
1014                }
1015                break;
1016        default:
1017                return -EINVAL;
1018        }
1019
1020        snd_soc_write(codec, WM8753_PCM, voice);
1021        snd_soc_write(codec, WM8753_IOCTL, ioctl);
1022        return 0;
1023}
1024
1025static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1026                int div_id, int div)
1027{
1028        struct snd_soc_codec *codec = codec_dai->codec;
1029        u16 reg;
1030
1031        switch (div_id) {
1032        case WM8753_PCMDIV:
1033                reg = snd_soc_read(codec, WM8753_CLOCK) & 0x003f;
1034                snd_soc_write(codec, WM8753_CLOCK, reg | div);
1035                break;
1036        case WM8753_BCLKDIV:
1037                reg = snd_soc_read(codec, WM8753_SRATE2) & 0x01c7;
1038                snd_soc_write(codec, WM8753_SRATE2, reg | div);
1039                break;
1040        case WM8753_VXCLKDIV:
1041                reg = snd_soc_read(codec, WM8753_SRATE2) & 0x003f;
1042                snd_soc_write(codec, WM8753_SRATE2, reg | div);
1043                break;
1044        default:
1045                return -EINVAL;
1046        }
1047        return 0;
1048}
1049
1050/*
1051 * Set's HiFi DAC format.
1052 */
1053static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec *codec,
1054                unsigned int fmt)
1055{
1056        u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01e0;
1057
1058        /* interface format */
1059        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1060        case SND_SOC_DAIFMT_I2S:
1061                hifi |= 0x0002;
1062                break;
1063        case SND_SOC_DAIFMT_RIGHT_J:
1064                break;
1065        case SND_SOC_DAIFMT_LEFT_J:
1066                hifi |= 0x0001;
1067                break;
1068        case SND_SOC_DAIFMT_DSP_A:
1069                hifi |= 0x0003;
1070                break;
1071        case SND_SOC_DAIFMT_DSP_B:
1072                hifi |= 0x0013;
1073                break;
1074        default:
1075                return -EINVAL;
1076        }
1077
1078        snd_soc_write(codec, WM8753_HIFI, hifi);
1079        return 0;
1080}
1081
1082/*
1083 * Set's I2S DAI format.
1084 */
1085static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec *codec,
1086                unsigned int fmt)
1087{
1088        u16 ioctl, hifi;
1089
1090        hifi = snd_soc_read(codec, WM8753_HIFI) & 0x011f;
1091        ioctl = snd_soc_read(codec, WM8753_IOCTL) & 0x00ae;
1092
1093        /* set master/slave audio interface */
1094        switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1095        case SND_SOC_DAIFMT_CBS_CFS:
1096                break;
1097        case SND_SOC_DAIFMT_CBM_CFM:
1098                ioctl |= 0x1;
1099        case SND_SOC_DAIFMT_CBM_CFS:
1100                hifi |= 0x0040;
1101                break;
1102        default:
1103                return -EINVAL;
1104        }
1105
1106        /* clock inversion */
1107        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1108        case SND_SOC_DAIFMT_DSP_A:
1109        case SND_SOC_DAIFMT_DSP_B:
1110                /* frame inversion not valid for DSP modes */
1111                switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1112                case SND_SOC_DAIFMT_NB_NF:
1113                        break;
1114                case SND_SOC_DAIFMT_IB_NF:
1115                        hifi |= 0x0080;
1116                        break;
1117                default:
1118                        return -EINVAL;
1119                }
1120                break;
1121        case SND_SOC_DAIFMT_I2S:
1122        case SND_SOC_DAIFMT_RIGHT_J:
1123        case SND_SOC_DAIFMT_LEFT_J:
1124                hifi &= ~0x0010;
1125                switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1126                case SND_SOC_DAIFMT_NB_NF:
1127                        break;
1128                case SND_SOC_DAIFMT_IB_IF:
1129                        hifi |= 0x0090;
1130                        break;
1131                case SND_SOC_DAIFMT_IB_NF:
1132                        hifi |= 0x0080;
1133                        break;
1134                case SND_SOC_DAIFMT_NB_IF:
1135                        hifi |= 0x0010;
1136                        break;
1137                default:
1138                        return -EINVAL;
1139                }
1140                break;
1141        default:
1142                return -EINVAL;
1143        }
1144
1145        snd_soc_write(codec, WM8753_HIFI, hifi);
1146        snd_soc_write(codec, WM8753_IOCTL, ioctl);
1147        return 0;
1148}
1149
1150/*
1151 * Set PCM DAI bit size and sample rate.
1152 */
1153static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1154                                struct snd_pcm_hw_params *params,
1155                                struct snd_soc_dai *dai)
1156{
1157        struct snd_soc_codec *codec = dai->codec;
1158        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1159        u16 srate = snd_soc_read(codec, WM8753_SRATE1) & 0x01c0;
1160        u16 hifi = snd_soc_read(codec, WM8753_HIFI) & 0x01f3;
1161        int coeff;
1162
1163        /* is digital filter coefficient valid ? */
1164        coeff = get_coeff(wm8753->sysclk, params_rate(params));
1165        if (coeff < 0) {
1166                printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1167                return coeff;
1168        }
1169        snd_soc_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1170                coeff_div[coeff].usb);
1171
1172        /* bit size */
1173        switch (params_width(params)) {
1174        case 16:
1175                break;
1176        case 20:
1177                hifi |= 0x0004;
1178                break;
1179        case 24:
1180                hifi |= 0x0008;
1181                break;
1182        case 32:
1183                hifi |= 0x000c;
1184                break;
1185        }
1186
1187        snd_soc_write(codec, WM8753_HIFI, hifi);
1188        return 0;
1189}
1190
1191static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec *codec,
1192                unsigned int fmt)
1193{
1194        u16 clock;
1195
1196        /* set clk source as pcmclk */
1197        clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1198        snd_soc_write(codec, WM8753_CLOCK, clock);
1199
1200        return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1201}
1202
1203static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec *codec,
1204                unsigned int fmt)
1205{
1206        return wm8753_hdac_set_dai_fmt(codec, fmt);
1207}
1208
1209static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec *codec,
1210                unsigned int fmt)
1211{
1212        u16 clock;
1213
1214        /* set clk source as pcmclk */
1215        clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1216        snd_soc_write(codec, WM8753_CLOCK, clock);
1217
1218        return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1219}
1220
1221static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec *codec,
1222                unsigned int fmt)
1223{
1224        u16 clock;
1225
1226        /* set clk source as mclk */
1227        clock = snd_soc_read(codec, WM8753_CLOCK) & 0xfffb;
1228        snd_soc_write(codec, WM8753_CLOCK, clock | 0x4);
1229
1230        if (wm8753_hdac_set_dai_fmt(codec, fmt) < 0)
1231                return -EINVAL;
1232        return wm8753_vdac_adc_set_dai_fmt(codec, fmt);
1233}
1234
1235static int wm8753_hifi_write_dai_fmt(struct snd_soc_codec *codec,
1236                unsigned int fmt)
1237{
1238        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1239        int ret = 0;
1240
1241        switch (wm8753->dai_func) {
1242        case 0:
1243                ret = wm8753_mode1h_set_dai_fmt(codec, fmt);
1244                break;
1245        case 1:
1246                ret = wm8753_mode2_set_dai_fmt(codec, fmt);
1247                break;
1248        case 2:
1249        case 3:
1250                ret = wm8753_mode3_4_set_dai_fmt(codec, fmt);
1251                break;
1252        default:
1253                 break;
1254        }
1255        if (ret)
1256                return ret;
1257
1258        return wm8753_i2s_set_dai_fmt(codec, fmt);
1259}
1260
1261static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
1262                unsigned int fmt)
1263{
1264        struct snd_soc_codec *codec = codec_dai->codec;
1265        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1266
1267        wm8753->hifi_fmt = fmt;
1268
1269        return wm8753_hifi_write_dai_fmt(codec, fmt);
1270};
1271
1272static int wm8753_voice_write_dai_fmt(struct snd_soc_codec *codec,
1273                unsigned int fmt)
1274{
1275        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1276        int ret = 0;
1277
1278        if (wm8753->dai_func != 0)
1279                return 0;
1280
1281        ret = wm8753_mode1v_set_dai_fmt(codec, fmt);
1282        if (ret)
1283                return ret;
1284        ret = wm8753_pcm_set_dai_fmt(codec, fmt);
1285        if (ret)
1286                return ret;
1287
1288        return 0;
1289};
1290
1291static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
1292                unsigned int fmt)
1293{
1294        struct snd_soc_codec *codec = codec_dai->codec;
1295        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1296
1297        wm8753->voice_fmt = fmt;
1298
1299        return wm8753_voice_write_dai_fmt(codec, fmt);
1300};
1301
1302static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1303{
1304        struct snd_soc_codec *codec = dai->codec;
1305        u16 mute_reg = snd_soc_read(codec, WM8753_DAC) & 0xfff7;
1306        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1307
1308        /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1309         * make sure we check if they are not both active when we mute */
1310        if (mute && wm8753->dai_func == 1) {
1311                if (!snd_soc_codec_is_active(codec))
1312                        snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1313        } else {
1314                if (mute)
1315                        snd_soc_write(codec, WM8753_DAC, mute_reg | 0x8);
1316                else
1317                        snd_soc_write(codec, WM8753_DAC, mute_reg);
1318        }
1319
1320        return 0;
1321}
1322
1323static void wm8753_charge_work(struct work_struct *work)
1324{
1325        struct wm8753_priv *wm8753 =
1326                container_of(work, struct wm8753_priv, charge_work.work);
1327
1328        /* Set to 500k */
1329        regmap_update_bits(wm8753->regmap, WM8753_PWR1, 0x0180, 0x0100);
1330}
1331
1332static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1333                                 enum snd_soc_bias_level level)
1334{
1335        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1336        u16 pwr_reg = snd_soc_read(codec, WM8753_PWR1) & 0xfe3e;
1337
1338        switch (level) {
1339        case SND_SOC_BIAS_ON:
1340                /* set vmid to 50k and unmute dac */
1341                snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1342                break;
1343        case SND_SOC_BIAS_PREPARE:
1344                /* Wait until fully charged */
1345                flush_delayed_work(&wm8753->charge_work);
1346                break;
1347        case SND_SOC_BIAS_STANDBY:
1348                if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
1349                        /* set vmid to 5k for quick power up */
1350                        snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1351                        schedule_delayed_work(&wm8753->charge_work,
1352                                msecs_to_jiffies(caps_charge));
1353                } else {
1354                        /* mute dac and set vmid to 500k, enable VREF */
1355                        snd_soc_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1356                }
1357                break;
1358        case SND_SOC_BIAS_OFF:
1359                cancel_delayed_work_sync(&wm8753->charge_work);
1360                snd_soc_write(codec, WM8753_PWR1, 0x0001);
1361                break;
1362        }
1363        return 0;
1364}
1365
1366#define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1367                SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1368                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1369                SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1370
1371#define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1372        SNDRV_PCM_FMTBIT_S24_LE)
1373
1374/*
1375 * The WM8753 supports up to 4 different and mutually exclusive DAI
1376 * configurations. This gives 2 PCM's available for use, hifi and voice.
1377 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1378 * is connected between the wm8753 and a BT codec or GSM modem.
1379 *
1380 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1381 * 2. Voice over HIFI DAI - HIFI disabled
1382 * 3. Voice disabled - HIFI over HIFI
1383 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1384 */
1385static const struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = {
1386        .hw_params      = wm8753_i2s_hw_params,
1387        .digital_mute   = wm8753_mute,
1388        .set_fmt        = wm8753_hifi_set_dai_fmt,
1389        .set_clkdiv     = wm8753_set_dai_clkdiv,
1390        .set_pll        = wm8753_set_dai_pll,
1391        .set_sysclk     = wm8753_set_dai_sysclk,
1392};
1393
1394static const struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = {
1395        .hw_params      = wm8753_pcm_hw_params,
1396        .digital_mute   = wm8753_mute,
1397        .set_fmt        = wm8753_voice_set_dai_fmt,
1398        .set_clkdiv     = wm8753_set_dai_clkdiv,
1399        .set_pll        = wm8753_set_dai_pll,
1400        .set_sysclk     = wm8753_set_dai_sysclk,
1401};
1402
1403static struct snd_soc_dai_driver wm8753_dai[] = {
1404/* DAI HiFi mode 1 */
1405{       .name = "wm8753-hifi",
1406        .playback = {
1407                .stream_name = "HiFi Playback",
1408                .channels_min = 1,
1409                .channels_max = 2,
1410                .rates = WM8753_RATES,
1411                .formats = WM8753_FORMATS
1412        },
1413        .capture = { /* dummy for fast DAI switching */
1414                .stream_name = "Capture",
1415                .channels_min = 1,
1416                .channels_max = 2,
1417                .rates = WM8753_RATES,
1418                .formats = WM8753_FORMATS
1419        },
1420        .ops = &wm8753_dai_ops_hifi_mode,
1421},
1422/* DAI Voice mode 1 */
1423{       .name = "wm8753-voice",
1424        .playback = {
1425                .stream_name = "Voice Playback",
1426                .channels_min = 1,
1427                .channels_max = 1,
1428                .rates = WM8753_RATES,
1429                .formats = WM8753_FORMATS,
1430        },
1431        .capture = {
1432                .stream_name = "Capture",
1433                .channels_min = 1,
1434                .channels_max = 2,
1435                .rates = WM8753_RATES,
1436                .formats = WM8753_FORMATS,
1437        },
1438        .ops = &wm8753_dai_ops_voice_mode,
1439},
1440};
1441
1442static int wm8753_resume(struct snd_soc_codec *codec)
1443{
1444        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1445
1446        regcache_sync(wm8753->regmap);
1447
1448        return 0;
1449}
1450
1451static int wm8753_probe(struct snd_soc_codec *codec)
1452{
1453        struct wm8753_priv *wm8753 = snd_soc_codec_get_drvdata(codec);
1454        int ret;
1455
1456        INIT_DELAYED_WORK(&wm8753->charge_work, wm8753_charge_work);
1457
1458        ret = wm8753_reset(codec);
1459        if (ret < 0) {
1460                dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
1461                return ret;
1462        }
1463
1464        wm8753->dai_func = 0;
1465
1466        /* set the update bits */
1467        snd_soc_update_bits(codec, WM8753_LDAC, 0x0100, 0x0100);
1468        snd_soc_update_bits(codec, WM8753_RDAC, 0x0100, 0x0100);
1469        snd_soc_update_bits(codec, WM8753_LADC, 0x0100, 0x0100);
1470        snd_soc_update_bits(codec, WM8753_RADC, 0x0100, 0x0100);
1471        snd_soc_update_bits(codec, WM8753_LOUT1V, 0x0100, 0x0100);
1472        snd_soc_update_bits(codec, WM8753_ROUT1V, 0x0100, 0x0100);
1473        snd_soc_update_bits(codec, WM8753_LOUT2V, 0x0100, 0x0100);
1474        snd_soc_update_bits(codec, WM8753_ROUT2V, 0x0100, 0x0100);
1475        snd_soc_update_bits(codec, WM8753_LINVOL, 0x0100, 0x0100);
1476        snd_soc_update_bits(codec, WM8753_RINVOL, 0x0100, 0x0100);
1477
1478        return 0;
1479}
1480
1481static const struct snd_soc_codec_driver soc_codec_dev_wm8753 = {
1482        .probe =        wm8753_probe,
1483        .resume =       wm8753_resume,
1484        .set_bias_level = wm8753_set_bias_level,
1485        .suspend_bias_off = true,
1486
1487        .component_driver = {
1488                .controls               = wm8753_snd_controls,
1489                .num_controls           = ARRAY_SIZE(wm8753_snd_controls),
1490                .dapm_widgets           = wm8753_dapm_widgets,
1491                .num_dapm_widgets       = ARRAY_SIZE(wm8753_dapm_widgets),
1492                .dapm_routes            = wm8753_dapm_routes,
1493                .num_dapm_routes        = ARRAY_SIZE(wm8753_dapm_routes),
1494        },
1495};
1496
1497static const struct of_device_id wm8753_of_match[] = {
1498        { .compatible = "wlf,wm8753", },
1499        { }
1500};
1501MODULE_DEVICE_TABLE(of, wm8753_of_match);
1502
1503static const struct regmap_config wm8753_regmap = {
1504        .reg_bits = 7,
1505        .val_bits = 9,
1506
1507        .max_register = WM8753_ADCTL2,
1508        .volatile_reg = wm8753_volatile,
1509
1510        .cache_type = REGCACHE_RBTREE,
1511        .reg_defaults = wm8753_reg_defaults,
1512        .num_reg_defaults = ARRAY_SIZE(wm8753_reg_defaults),
1513};
1514
1515#if defined(CONFIG_SPI_MASTER)
1516static int wm8753_spi_probe(struct spi_device *spi)
1517{
1518        struct wm8753_priv *wm8753;
1519        int ret;
1520
1521        wm8753 = devm_kzalloc(&spi->dev, sizeof(struct wm8753_priv),
1522                              GFP_KERNEL);
1523        if (wm8753 == NULL)
1524                return -ENOMEM;
1525
1526        spi_set_drvdata(spi, wm8753);
1527
1528        wm8753->regmap = devm_regmap_init_spi(spi, &wm8753_regmap);
1529        if (IS_ERR(wm8753->regmap)) {
1530                ret = PTR_ERR(wm8753->regmap);
1531                dev_err(&spi->dev, "Failed to allocate register map: %d\n",
1532                        ret);
1533                return ret;
1534        }
1535
1536        ret = snd_soc_register_codec(&spi->dev, &soc_codec_dev_wm8753,
1537                                     wm8753_dai, ARRAY_SIZE(wm8753_dai));
1538        if (ret != 0)
1539                dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret);
1540
1541        return ret;
1542}
1543
1544static int wm8753_spi_remove(struct spi_device *spi)
1545{
1546        snd_soc_unregister_codec(&spi->dev);
1547        return 0;
1548}
1549
1550static struct spi_driver wm8753_spi_driver = {
1551        .driver = {
1552                .name   = "wm8753",
1553                .of_match_table = wm8753_of_match,
1554        },
1555        .probe          = wm8753_spi_probe,
1556        .remove         = wm8753_spi_remove,
1557};
1558#endif /* CONFIG_SPI_MASTER */
1559
1560#if IS_ENABLED(CONFIG_I2C)
1561static int wm8753_i2c_probe(struct i2c_client *i2c,
1562                            const struct i2c_device_id *id)
1563{
1564        struct wm8753_priv *wm8753;
1565        int ret;
1566
1567        wm8753 = devm_kzalloc(&i2c->dev, sizeof(struct wm8753_priv),
1568                              GFP_KERNEL);
1569        if (wm8753 == NULL)
1570                return -ENOMEM;
1571
1572        i2c_set_clientdata(i2c, wm8753);
1573
1574        wm8753->regmap = devm_regmap_init_i2c(i2c, &wm8753_regmap);
1575        if (IS_ERR(wm8753->regmap)) {
1576                ret = PTR_ERR(wm8753->regmap);
1577                dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1578                        ret);
1579                return ret;
1580        }
1581
1582        ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_wm8753,
1583                                     wm8753_dai, ARRAY_SIZE(wm8753_dai));
1584        if (ret != 0)
1585                dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
1586
1587        return ret;
1588}
1589
1590static int wm8753_i2c_remove(struct i2c_client *client)
1591{
1592        snd_soc_unregister_codec(&client->dev);
1593        return 0;
1594}
1595
1596static const struct i2c_device_id wm8753_i2c_id[] = {
1597        { "wm8753", 0 },
1598        { }
1599};
1600MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1601
1602static struct i2c_driver wm8753_i2c_driver = {
1603        .driver = {
1604                .name = "wm8753",
1605                .of_match_table = wm8753_of_match,
1606        },
1607        .probe =    wm8753_i2c_probe,
1608        .remove =   wm8753_i2c_remove,
1609        .id_table = wm8753_i2c_id,
1610};
1611#endif
1612
1613static int __init wm8753_modinit(void)
1614{
1615        int ret = 0;
1616#if IS_ENABLED(CONFIG_I2C)
1617        ret = i2c_add_driver(&wm8753_i2c_driver);
1618        if (ret != 0) {
1619                printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
1620                       ret);
1621        }
1622#endif
1623#if defined(CONFIG_SPI_MASTER)
1624        ret = spi_register_driver(&wm8753_spi_driver);
1625        if (ret != 0) {
1626                printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
1627                       ret);
1628        }
1629#endif
1630        return ret;
1631}
1632module_init(wm8753_modinit);
1633
1634static void __exit wm8753_exit(void)
1635{
1636#if IS_ENABLED(CONFIG_I2C)
1637        i2c_del_driver(&wm8753_i2c_driver);
1638#endif
1639#if defined(CONFIG_SPI_MASTER)
1640        spi_unregister_driver(&wm8753_spi_driver);
1641#endif
1642}
1643module_exit(wm8753_exit);
1644
1645MODULE_DESCRIPTION("ASoC WM8753 driver");
1646MODULE_AUTHOR("Liam Girdwood");
1647MODULE_LICENSE("GPL");
1648