kernel/sound/soc/codecs/wm8960.c

   1 /*
   2  * wm8960.c  --  WM8960 ALSA SoC Audio driver
   3  *
   4  * Copyright 2007-11 Wolfson Microelectronics, plc
   5  *
   6  * Author: Liam Girdwood
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/module.h>
  14 #include <linux/moduleparam.h>
  15 #include <linux/init.h>
  16 #include <linux/delay.h>
  17 #include <linux/pm.h>
  18 #include <linux/clk.h>
  19 #include <linux/i2c.h>
  20 #include <linux/slab.h>
  21 #include <sound/core.h>
  22 #include <sound/pcm.h>
  23 #include <sound/pcm_params.h>
  24 #include <sound/soc.h>
  25 #include <sound/initval.h>
  26 #include <sound/tlv.h>
  27 #include <sound/wm8960.h>
  28
  29 #include "wm8960.h"
  30
  31 /* R25 - Power 1 */
  32 #define WM8960_VMID_MASK 0x180
  33 #define WM8960_VREF      0x40
  34
  35 /* R26 - Power 2 */
  36 #define WM8960_PWR2_LOUT1       0x40
  37 #define WM8960_PWR2_ROUT1       0x20
  38 #define WM8960_PWR2_OUT3        0x02
  39
  40 /* R28 - Anti-pop 1 */
  41 #define WM8960_POBCTRL   0x80
  42 #define WM8960_BUFDCOPEN 0x10
  43 #define WM8960_BUFIOEN   0x08
  44 #define WM8960_SOFT_ST   0x04
  45 #define WM8960_HPSTBY    0x01
  46
  47 /* R29 - Anti-pop 2 */
  48 #define WM8960_DISOP     0x40
  49 #define WM8960_DRES_MASK 0x30
  50
  51 /*
  52  * wm8960 register cache
  53  * We can't read the WM8960 register space when we are
  54  * using 2 wire for device control, so we cache them instead.
  55  */
  56 static const struct reg_default wm8960_reg_defaults[] = {
  57         {  0x0, 0x00a7 },
  58         {  0x1, 0x00a7 },
  59         {  0x2, 0x0000 },
  60         {  0x3, 0x0000 },
  61         {  0x4, 0x0000 },
  62         {  0x5, 0x0008 },
  63         {  0x6, 0x0000 },
  64         {  0x7, 0x000a },
  65         {  0x8, 0x01c0 },
  66         {  0x9, 0x0000 },
  67         {  0xa, 0x00ff },
  68         {  0xb, 0x00ff },
  69
  70         { 0x10, 0x0000 },
  71         { 0x11, 0x007b },
  72         { 0x12, 0x0100 },
  73         { 0x13, 0x0032 },
  74         { 0x14, 0x0000 },
  75         { 0x15, 0x00c3 },
  76         { 0x16, 0x00c3 },
  77         { 0x17, 0x01c0 },
  78         { 0x18, 0x0000 },
  79         { 0x19, 0x0000 },
  80         { 0x1a, 0x0000 },
  81         { 0x1b, 0x0000 },
  82         { 0x1c, 0x0000 },
  83         { 0x1d, 0x0000 },
  84
  85         { 0x20, 0x0100 },
  86         { 0x21, 0x0100 },
  87         { 0x22, 0x0050 },
  88
  89         { 0x25, 0x0050 },
  90         { 0x26, 0x0000 },
  91         { 0x27, 0x0000 },
  92         { 0x28, 0x0000 },
  93         { 0x29, 0x0000 },
  94         { 0x2a, 0x0040 },
  95         { 0x2b, 0x0000 },
  96         { 0x2c, 0x0000 },
  97         { 0x2d, 0x0050 },
  98         { 0x2e, 0x0050 },
  99         { 0x2f, 0x0000 },
 100         { 0x30, 0x0002 },
 101         { 0x31, 0x0037 },
 102
 103         { 0x33, 0x0080 },
 104         { 0x34, 0x0008 },
 105         { 0x35, 0x0031 },
 106         { 0x36, 0x0026 },
 107         { 0x37, 0x00e9 },
 108 };
 109
 110 static bool wm8960_volatile(struct device *dev, unsigned int reg)
 111 {
 112         switch (reg) {
 113         case WM8960_RESET:
 114                 return true;
 115         default:
 116                 return false;
 117         }
 118 }
 119
 120 struct wm8960_priv {
 121         struct clk *mclk;
 122         struct regmap *regmap;
 123         int (*set_bias_level)(struct snd_soc_codec *,
 124                               enum snd_soc_bias_level level);
 125         struct snd_soc_dapm_widget *lout1;
 126         struct snd_soc_dapm_widget *rout1;
 127         struct snd_soc_dapm_widget *out3;
 128         bool deemph;
 129         int playback_fs;
 130         struct wm8960_data pdata;
 131 };
 132
 133 #define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0)
 134
 135 /* enumerated controls */
 136 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
 137         "Right Inverted", "Stereo Inversion"};
 138 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
 139 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
 140 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
 141 static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
 142
 143 static const struct soc_enum wm8960_enum[] = {
 144         SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
 145         SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
 146         SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
 147         SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
 148         SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
 149         SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
 150 };
 151
 152 static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
 153
 154 static int wm8960_set_deemph(struct snd_soc_codec *codec)
 155 {
 156         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 157         int val, i, best;
 158
 159         /* If we're using deemphasis select the nearest available sample
 160          * rate.
 161          */
 162         if (wm8960->deemph) {
 163                 best = 1;
 164                 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
 165                         if (abs(deemph_settings[i] - wm8960->playback_fs) <
 166                             abs(deemph_settings[best] - wm8960->playback_fs))
 167                                 best = i;
 168                 }
 169
 170                 val = best << 1;
 171         } else {
 172                 val = 0;
 173         }
 174
 175         dev_dbg(codec->dev, "Set deemphasis %d\n", val);
 176
 177         return snd_soc_update_bits(codec, WM8960_DACCTL1,
 178                                    0x6, val);
 179 }
 180
 181 static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
 182                              struct snd_ctl_elem_value *ucontrol)
 183 {
 184         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 185         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 186
 187         ucontrol->value.integer.value[0] = wm8960->deemph;
 188         return 0;
 189 }
 190
 191 static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
 192                              struct snd_ctl_elem_value *ucontrol)
 193 {
 194         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
 195         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 196         int deemph = ucontrol->value.integer.value[0];
 197
 198         if (deemph > 1)
 199                 return -EINVAL;
 200
 201         wm8960->deemph = deemph;
 202
 203         return wm8960_set_deemph(codec);
 204 }
 205
 206 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9700, 50, 0);
 207 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
 208 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
 209 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
 210 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1);
 211
 212 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
 213 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
 214                  0, 63, 0, adc_tlv),
 215 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
 216         6, 1, 0),
 217 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
 218         7, 1, 0),
 219
 220 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
 221                WM8960_INBMIX1, 4, 7, 0, boost_tlv),
 222 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
 223                WM8960_INBMIX1, 1, 7, 0, boost_tlv),
 224 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
 225                WM8960_INBMIX2, 4, 7, 0, boost_tlv),
 226 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
 227                WM8960_INBMIX2, 1, 7, 0, boost_tlv),
 228
 229 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
 230                  0, 255, 0, dac_tlv),
 231
 232 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
 233                  0, 127, 0, out_tlv),
 234 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
 235         7, 1, 0),
 236
 237 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
 238                  0, 127, 0, out_tlv),
 239 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
 240         7, 1, 0),
 241 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
 242 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
 243
 244 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
 245 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
 246 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
 247
 248 SOC_ENUM("DAC Polarity", wm8960_enum[1]),
 249 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
 250                     wm8960_get_deemph, wm8960_put_deemph),
 251
 252 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
 253 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
 254 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
 255 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
 256
 257 SOC_ENUM("ALC Function", wm8960_enum[4]),
 258 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
 259 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
 260 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
 261 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
 262 SOC_ENUM("ALC Mode", wm8960_enum[5]),
 263 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
 264 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
 265
 266 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
 267 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
 268
 269 SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC,
 270         0, 255, 0, adc_tlv),
 271
 272 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
 273                WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
 274 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
 275                WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
 276 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
 277                WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
 278 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
 279                WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
 280 };
 281
 282 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
 283 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
 284 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
 285 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
 286 };
 287
 288 static const struct snd_kcontrol_new wm8960_lin[] = {
 289 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
 290 };
 291
 292 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
 293 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
 294 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
 295 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
 296 };
 297
 298 static const struct snd_kcontrol_new wm8960_rin[] = {
 299 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
 300 };
 301
 302 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
 303 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
 304 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
 305 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
 306 };
 307
 308 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
 309 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
 310 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
 311 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
 312 };
 313
 314 static const struct snd_kcontrol_new wm8960_mono_out[] = {
 315 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
 316 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
 317 };
 318
 319 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
 320 SND_SOC_DAPM_INPUT("LINPUT1"),
 321 SND_SOC_DAPM_INPUT("RINPUT1"),
 322 SND_SOC_DAPM_INPUT("LINPUT2"),
 323 SND_SOC_DAPM_INPUT("RINPUT2"),
 324 SND_SOC_DAPM_INPUT("LINPUT3"),
 325 SND_SOC_DAPM_INPUT("RINPUT3"),
 326
 327 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
 328
 329 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
 330                    wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
 331 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
 332                    wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
 333
 334 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
 335                    wm8960_lin, ARRAY_SIZE(wm8960_lin)),
 336 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
 337                    wm8960_rin, ARRAY_SIZE(wm8960_rin)),
 338
 339 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0),
 340 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0),
 341
 342 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
 343 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
 344
 345 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
 346         &wm8960_loutput_mixer[0],
 347         ARRAY_SIZE(wm8960_loutput_mixer)),
 348 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
 349         &wm8960_routput_mixer[0],
 350         ARRAY_SIZE(wm8960_routput_mixer)),
 351
 352 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
 353 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
 354
 355 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
 356 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
 357
 358 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
 359 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
 360
 361 SND_SOC_DAPM_OUTPUT("SPK_LP"),
 362 SND_SOC_DAPM_OUTPUT("SPK_LN"),
 363 SND_SOC_DAPM_OUTPUT("HP_L"),
 364 SND_SOC_DAPM_OUTPUT("HP_R"),
 365 SND_SOC_DAPM_OUTPUT("SPK_RP"),
 366 SND_SOC_DAPM_OUTPUT("SPK_RN"),
 367 SND_SOC_DAPM_OUTPUT("OUT3"),
 368 };
 369
 370 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
 371 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
 372         &wm8960_mono_out[0],
 373         ARRAY_SIZE(wm8960_mono_out)),
 374 };
 375
 376 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
 377 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
 378 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
 379 };
 380
 381 static const struct snd_soc_dapm_route audio_paths[] = {
 382         { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
 383         { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
 384         { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
 385
 386         { "Left Input Mixer", "Boost Switch", "Left Boost Mixer", },
 387         { "Left Input Mixer", NULL, "LINPUT1", },  /* Really Boost Switch */
 388         { "Left Input Mixer", NULL, "LINPUT2" },
 389         { "Left Input Mixer", NULL, "LINPUT3" },
 390
 391         { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
 392         { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
 393         { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
 394
 395         { "Right Input Mixer", "Boost Switch", "Right Boost Mixer", },
 396         { "Right Input Mixer", NULL, "RINPUT1", },  /* Really Boost Switch */
 397         { "Right Input Mixer", NULL, "RINPUT2" },
 398         { "Right Input Mixer", NULL, "RINPUT3" },
 399
 400         { "Left ADC", NULL, "Left Input Mixer" },
 401         { "Right ADC", NULL, "Right Input Mixer" },
 402
 403         { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
 404         { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer"} ,
 405         { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
 406
 407         { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
 408         { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" } ,
 409         { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
 410
 411         { "LOUT1 PGA", NULL, "Left Output Mixer" },
 412         { "ROUT1 PGA", NULL, "Right Output Mixer" },
 413
 414         { "HP_L", NULL, "LOUT1 PGA" },
 415         { "HP_R", NULL, "ROUT1 PGA" },
 416
 417         { "Left Speaker PGA", NULL, "Left Output Mixer" },
 418         { "Right Speaker PGA", NULL, "Right Output Mixer" },
 419
 420         { "Left Speaker Output", NULL, "Left Speaker PGA" },
 421         { "Right Speaker Output", NULL, "Right Speaker PGA" },
 422
 423         { "SPK_LN", NULL, "Left Speaker Output" },
 424         { "SPK_LP", NULL, "Left Speaker Output" },
 425         { "SPK_RN", NULL, "Right Speaker Output" },
 426         { "SPK_RP", NULL, "Right Speaker Output" },
 427 };
 428
 429 static const struct snd_soc_dapm_route audio_paths_out3[] = {
 430         { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
 431         { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
 432
 433         { "OUT3", NULL, "Mono Output Mixer", }
 434 };
 435
 436 static const struct snd_soc_dapm_route audio_paths_capless[] = {
 437         { "HP_L", NULL, "OUT3 VMID" },
 438         { "HP_R", NULL, "OUT3 VMID" },
 439
 440         { "OUT3 VMID", NULL, "Left Output Mixer" },
 441         { "OUT3 VMID", NULL, "Right Output Mixer" },
 442 };
 443
 444 static int wm8960_add_widgets(struct snd_soc_codec *codec)
 445 {
 446         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 447         struct wm8960_data *pdata = &wm8960->pdata;
 448         struct snd_soc_dapm_context *dapm = &codec->dapm;
 449         struct snd_soc_dapm_widget *w;
 450
 451         snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
 452                                   ARRAY_SIZE(wm8960_dapm_widgets));
 453
 454         snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
 455
 456         /* In capless mode OUT3 is used to provide VMID for the
 457          * headphone outputs, otherwise it is used as a mono mixer.
 458          */
 459         if (pdata && pdata->capless) {
 460                 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
 461                                           ARRAY_SIZE(wm8960_dapm_widgets_capless));
 462
 463                 snd_soc_dapm_add_routes(dapm, audio_paths_capless,
 464                                         ARRAY_SIZE(audio_paths_capless));
 465         } else {
 466                 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
 467                                           ARRAY_SIZE(wm8960_dapm_widgets_out3));
 468
 469                 snd_soc_dapm_add_routes(dapm, audio_paths_out3,
 470                                         ARRAY_SIZE(audio_paths_out3));
 471         }
 472
 473         /* We need to power up the headphone output stage out of
 474          * sequence for capless mode.  To save scanning the widget
 475          * list each time to find the desired power state do so now
 476          * and save the result.
 477          */
 478         list_for_each_entry(w, &codec->component.card->widgets, list) {
 479                 if (w->dapm != &codec->dapm)
 480                         continue;
 481                 if (strcmp(w->name, "LOUT1 PGA") == 0)
 482                         wm8960->lout1 = w;
 483                 if (strcmp(w->name, "ROUT1 PGA") == 0)
 484                         wm8960->rout1 = w;
 485                 if (strcmp(w->name, "OUT3 VMID") == 0)
 486                         wm8960->out3 = w;
 487         }
 488
 489         return 0;
 490 }
 491
 492 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
 493                 unsigned int fmt)
 494 {
 495         struct snd_soc_codec *codec = codec_dai->codec;
 496         u16 iface = 0;
 497
 498         /* set master/slave audio interface */
 499         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 500         case SND_SOC_DAIFMT_CBM_CFM:
 501                 iface |= 0x0040;
 502                 break;
 503         case SND_SOC_DAIFMT_CBS_CFS:
 504                 break;
 505         default:
 506                 return -EINVAL;
 507         }
 508
 509         /* interface format */
 510         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 511         case SND_SOC_DAIFMT_I2S:
 512                 iface |= 0x0002;
 513                 break;
 514         case SND_SOC_DAIFMT_RIGHT_J:
 515                 break;
 516         case SND_SOC_DAIFMT_LEFT_J:
 517                 iface |= 0x0001;
 518                 break;
 519         case SND_SOC_DAIFMT_DSP_A:
 520                 iface |= 0x0003;
 521                 break;
 522         case SND_SOC_DAIFMT_DSP_B:
 523                 iface |= 0x0013;
 524                 break;
 525         default:
 526                 return -EINVAL;
 527         }
 528
 529         /* clock inversion */
 530         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 531         case SND_SOC_DAIFMT_NB_NF:
 532                 break;
 533         case SND_SOC_DAIFMT_IB_IF:
 534                 iface |= 0x0090;
 535                 break;
 536         case SND_SOC_DAIFMT_IB_NF:
 537                 iface |= 0x0080;
 538                 break;
 539         case SND_SOC_DAIFMT_NB_IF:
 540                 iface |= 0x0010;
 541                 break;
 542         default:
 543                 return -EINVAL;
 544         }
 545
 546         /* set iface */
 547         snd_soc_write(codec, WM8960_IFACE1, iface);
 548         return 0;
 549 }
 550
 551 static struct {
 552         int rate;
 553         unsigned int val;
 554 } alc_rates[] = {
 555         { 48000, 0 },
 556         { 44100, 0 },
 557         { 32000, 1 },
 558         { 22050, 2 },
 559         { 24000, 2 },
 560         { 16000, 3 },
 561         { 11025, 4 },
 562         { 12000, 4 },
 563         {  8000, 5 },
 564 };
 565
 566 static int wm8960_hw_params(struct snd_pcm_substream *substream,
 567                             struct snd_pcm_hw_params *params,
 568                             struct snd_soc_dai *dai)
 569 {
 570         struct snd_soc_codec *codec = dai->codec;
 571         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 572         u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
 573         int i;
 574
 575         /* bit size */
 576         switch (params_width(params)) {
 577         case 16:
 578                 break;
 579         case 20:
 580                 iface |= 0x0004;
 581                 break;
 582         case 24:
 583                 iface |= 0x0008;
 584                 break;
 585         default:
 586                 dev_err(codec->dev, "unsupported width %d\n",
 587                         params_width(params));
 588                 return -EINVAL;
 589         }
 590
 591         /* Update filters for the new rate */
 592         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 593                 wm8960->playback_fs = params_rate(params);
 594                 wm8960_set_deemph(codec);
 595         } else {
 596                 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
 597                         if (alc_rates[i].rate == params_rate(params))
 598                                 snd_soc_update_bits(codec,
 599                                                     WM8960_ADDCTL3, 0x7,
 600                                                     alc_rates[i].val);
 601         }
 602
 603         /* set iface */
 604         snd_soc_write(codec, WM8960_IFACE1, iface);
 605         return 0;
 606 }
 607
 608 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
 609 {
 610         struct snd_soc_codec *codec = dai->codec;
 611
 612         if (mute)
 613                 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8);
 614         else
 615                 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0);
 616         return 0;
 617 }
 618
 619 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
 620                                       enum snd_soc_bias_level level)
 621 {
 622         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 623         int ret;
 624
 625         switch (level) {
 626         case SND_SOC_BIAS_ON:
 627                 break;
 628
 629         case SND_SOC_BIAS_PREPARE:
 630                 switch (codec->dapm.bias_level) {
 631                 case SND_SOC_BIAS_STANDBY:
 632                         if (!IS_ERR(wm8960->mclk)) {
 633                                 ret = clk_prepare_enable(wm8960->mclk);
 634                                 if (ret) {
 635                                         dev_err(codec->dev,
 636                                                 "Failed to enable MCLK: %d\n",
 637                                                 ret);
 638                                         return ret;
 639                                 }
 640                         }
 641
 642                         /* Set VMID to 2x50k */
 643                         snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80);
 644                         break;
 645
 646                 case SND_SOC_BIAS_ON:
 647                         if (!IS_ERR(wm8960->mclk))
 648                                 clk_disable_unprepare(wm8960->mclk);
 649                         break;
 650
 651                 default:
 652                         break;
 653                 }
 654
 655                 break;
 656
 657         case SND_SOC_BIAS_STANDBY:
 658                 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
 659                         regcache_sync(wm8960->regmap);
 660
 661                         /* Enable anti-pop features */
 662                         snd_soc_write(codec, WM8960_APOP1,
 663                                       WM8960_POBCTRL | WM8960_SOFT_ST |
 664                                       WM8960_BUFDCOPEN | WM8960_BUFIOEN);
 665
 666                         /* Enable & ramp VMID at 2x50k */
 667                         snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80);
 668                         msleep(100);
 669
 670                         /* Enable VREF */
 671                         snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF,
 672                                             WM8960_VREF);
 673
 674                         /* Disable anti-pop features */
 675                         snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
 676                 }
 677
 678                 /* Set VMID to 2x250k */
 679                 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100);
 680                 break;
 681
 682         case SND_SOC_BIAS_OFF:
 683                 /* Enable anti-pop features */
 684                 snd_soc_write(codec, WM8960_APOP1,
 685                              WM8960_POBCTRL | WM8960_SOFT_ST |
 686                              WM8960_BUFDCOPEN | WM8960_BUFIOEN);
 687
 688                 /* Disable VMID and VREF, let them discharge */
 689                 snd_soc_write(codec, WM8960_POWER1, 0);
 690                 msleep(600);
 691                 break;
 692         }
 693
 694         codec->dapm.bias_level = level;
 695
 696         return 0;
 697 }
 698
 699 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
 700                                          enum snd_soc_bias_level level)
 701 {
 702         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 703         int reg, ret;
 704
 705         switch (level) {
 706         case SND_SOC_BIAS_ON:
 707                 break;
 708
 709         case SND_SOC_BIAS_PREPARE:
 710                 switch (codec->dapm.bias_level) {
 711                 case SND_SOC_BIAS_STANDBY:
 712                         /* Enable anti pop mode */
 713                         snd_soc_update_bits(codec, WM8960_APOP1,
 714                                             WM8960_POBCTRL | WM8960_SOFT_ST |
 715                                             WM8960_BUFDCOPEN,
 716                                             WM8960_POBCTRL | WM8960_SOFT_ST |
 717                                             WM8960_BUFDCOPEN);
 718
 719                         /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
 720                         reg = 0;
 721                         if (wm8960->lout1 && wm8960->lout1->power)
 722                                 reg |= WM8960_PWR2_LOUT1;
 723                         if (wm8960->rout1 && wm8960->rout1->power)
 724                                 reg |= WM8960_PWR2_ROUT1;
 725                         if (wm8960->out3 && wm8960->out3->power)
 726                                 reg |= WM8960_PWR2_OUT3;
 727                         snd_soc_update_bits(codec, WM8960_POWER2,
 728                                             WM8960_PWR2_LOUT1 |
 729                                             WM8960_PWR2_ROUT1 |
 730                                             WM8960_PWR2_OUT3, reg);
 731
 732                         /* Enable VMID at 2*50k */
 733                         snd_soc_update_bits(codec, WM8960_POWER1,
 734                                             WM8960_VMID_MASK, 0x80);
 735
 736                         /* Ramp */
 737                         msleep(100);
 738
 739                         /* Enable VREF */
 740                         snd_soc_update_bits(codec, WM8960_POWER1,
 741                                             WM8960_VREF, WM8960_VREF);
 742
 743                         msleep(100);
 744
 745                         if (!IS_ERR(wm8960->mclk)) {
 746                                 ret = clk_prepare_enable(wm8960->mclk);
 747                                 if (ret) {
 748                                         dev_err(codec->dev,
 749                                                 "Failed to enable MCLK: %d\n",
 750                                                 ret);
 751                                         return ret;
 752                                 }
 753                         }
 754                         break;
 755
 756                 case SND_SOC_BIAS_ON:
 757                         if (!IS_ERR(wm8960->mclk))
 758                                 clk_disable_unprepare(wm8960->mclk);
 759
 760                         /* Enable anti-pop mode */
 761                         snd_soc_update_bits(codec, WM8960_APOP1,
 762                                             WM8960_POBCTRL | WM8960_SOFT_ST |
 763                                             WM8960_BUFDCOPEN,
 764                                             WM8960_POBCTRL | WM8960_SOFT_ST |
 765                                             WM8960_BUFDCOPEN);
 766
 767                         /* Disable VMID and VREF */
 768                         snd_soc_update_bits(codec, WM8960_POWER1,
 769                                             WM8960_VREF | WM8960_VMID_MASK, 0);
 770                         break;
 771
 772                 case SND_SOC_BIAS_OFF:
 773                         regcache_sync(wm8960->regmap);
 774                         break;
 775                 default:
 776                         break;
 777                 }
 778                 break;
 779
 780         case SND_SOC_BIAS_STANDBY:
 781                 switch (codec->dapm.bias_level) {
 782                 case SND_SOC_BIAS_PREPARE:
 783                         /* Disable HP discharge */
 784                         snd_soc_update_bits(codec, WM8960_APOP2,
 785                                             WM8960_DISOP | WM8960_DRES_MASK,
 786                                             0);
 787
 788                         /* Disable anti-pop features */
 789                         snd_soc_update_bits(codec, WM8960_APOP1,
 790                                             WM8960_POBCTRL | WM8960_SOFT_ST |
 791                                             WM8960_BUFDCOPEN,
 792                                             WM8960_POBCTRL | WM8960_SOFT_ST |
 793                                             WM8960_BUFDCOPEN);
 794                         break;
 795
 796                 default:
 797                         break;
 798                 }
 799                 break;
 800
 801         case SND_SOC_BIAS_OFF:
 802                 break;
 803         }
 804
 805         codec->dapm.bias_level = level;
 806
 807         return 0;
 808 }
 809
 810 /* PLL divisors */
 811 struct _pll_div {
 812         u32 pre_div:1;
 813         u32 n:4;
 814         u32 k:24;
 815 };
 816
 817 /* The size in bits of the pll divide multiplied by 10
 818  * to allow rounding later */
 819 #define FIXED_PLL_SIZE ((1 << 24) * 10)
 820
 821 static int pll_factors(unsigned int source, unsigned int target,
 822                        struct _pll_div *pll_div)
 823 {
 824         unsigned long long Kpart;
 825         unsigned int K, Ndiv, Nmod;
 826
 827         pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
 828
 829         /* Scale up target to PLL operating frequency */
 830         target *= 4;
 831
 832         Ndiv = target / source;
 833         if (Ndiv < 6) {
 834                 source >>= 1;
 835                 pll_div->pre_div = 1;
 836                 Ndiv = target / source;
 837         } else
 838                 pll_div->pre_div = 0;
 839
 840         if ((Ndiv < 6) || (Ndiv > 12)) {
 841                 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
 842                 return -EINVAL;
 843         }
 844
 845         pll_div->n = Ndiv;
 846         Nmod = target % source;
 847         Kpart = FIXED_PLL_SIZE * (long long)Nmod;
 848
 849         do_div(Kpart, source);
 850
 851         K = Kpart & 0xFFFFFFFF;
 852
 853         /* Check if we need to round */
 854         if ((K % 10) >= 5)
 855                 K += 5;
 856
 857         /* Move down to proper range now rounding is done */
 858         K /= 10;
 859
 860         pll_div->k = K;
 861
 862         pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
 863                  pll_div->n, pll_div->k, pll_div->pre_div);
 864
 865         return 0;
 866 }
 867
 868 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
 869                 int source, unsigned int freq_in, unsigned int freq_out)
 870 {
 871         struct snd_soc_codec *codec = codec_dai->codec;
 872         u16 reg;
 873         static struct _pll_div pll_div;
 874         int ret;
 875
 876         if (freq_in && freq_out) {
 877                 ret = pll_factors(freq_in, freq_out, &pll_div);
 878                 if (ret != 0)
 879                         return ret;
 880         }
 881
 882         /* Disable the PLL: even if we are changing the frequency the
 883          * PLL needs to be disabled while we do so. */
 884         snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0);
 885         snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0);
 886
 887         if (!freq_in || !freq_out)
 888                 return 0;
 889
 890         reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
 891         reg |= pll_div.pre_div << 4;
 892         reg |= pll_div.n;
 893
 894         if (pll_div.k) {
 895                 reg |= 0x20;
 896
 897                 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 16) & 0xff);
 898                 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 8) & 0xff);
 899                 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0xff);
 900         }
 901         snd_soc_write(codec, WM8960_PLL1, reg);
 902
 903         /* Turn it on */
 904         snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1);
 905         msleep(250);
 906         snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1);
 907
 908         return 0;
 909 }
 910
 911 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
 912                 int div_id, int div)
 913 {
 914         struct snd_soc_codec *codec = codec_dai->codec;
 915         u16 reg;
 916
 917         switch (div_id) {
 918         case WM8960_SYSCLKDIV:
 919                 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
 920                 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
 921                 break;
 922         case WM8960_DACDIV:
 923                 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
 924                 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
 925                 break;
 926         case WM8960_OPCLKDIV:
 927                 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
 928                 snd_soc_write(codec, WM8960_PLL1, reg | div);
 929                 break;
 930         case WM8960_DCLKDIV:
 931                 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
 932                 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
 933                 break;
 934         case WM8960_TOCLKSEL:
 935                 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
 936                 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
 937                 break;
 938         default:
 939                 return -EINVAL;
 940         }
 941
 942         return 0;
 943 }
 944
 945 static int wm8960_set_bias_level(struct snd_soc_codec *codec,
 946                                  enum snd_soc_bias_level level)
 947 {
 948         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 949
 950         return wm8960->set_bias_level(codec, level);
 951 }
 952
 953 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
 954
 955 #define WM8960_FORMATS \
 956         (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
 957         SNDRV_PCM_FMTBIT_S24_LE)
 958
 959 static const struct snd_soc_dai_ops wm8960_dai_ops = {
 960         .hw_params = wm8960_hw_params,
 961         .digital_mute = wm8960_mute,
 962         .set_fmt = wm8960_set_dai_fmt,
 963         .set_clkdiv = wm8960_set_dai_clkdiv,
 964         .set_pll = wm8960_set_dai_pll,
 965 };
 966
 967 static struct snd_soc_dai_driver wm8960_dai = {
 968         .name = "wm8960-hifi",
 969         .playback = {
 970                 .stream_name = "Playback",
 971                 .channels_min = 1,
 972                 .channels_max = 2,
 973                 .rates = WM8960_RATES,
 974                 .formats = WM8960_FORMATS,},
 975         .capture = {
 976                 .stream_name = "Capture",
 977                 .channels_min = 1,
 978                 .channels_max = 2,
 979                 .rates = WM8960_RATES,
 980                 .formats = WM8960_FORMATS,},
 981         .ops = &wm8960_dai_ops,
 982         .symmetric_rates = 1,
 983 };
 984
 985 static int wm8960_probe(struct snd_soc_codec *codec)
 986 {
 987         struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
 988         struct wm8960_data *pdata = &wm8960->pdata;
 989
 990         if (pdata->capless)
 991                 wm8960->set_bias_level = wm8960_set_bias_level_capless;
 992         else
 993                 wm8960->set_bias_level = wm8960_set_bias_level_out3;
 994
 995         snd_soc_add_codec_controls(codec, wm8960_snd_controls,
 996                                      ARRAY_SIZE(wm8960_snd_controls));
 997         wm8960_add_widgets(codec);
 998
 999         return 0;
1000 }
1001
1002 static struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
1003         .probe =        wm8960_probe,
1004         .set_bias_level = wm8960_set_bias_level,
1005         .suspend_bias_off = true,
1006 };
1007
1008 static const struct regmap_config wm8960_regmap = {
1009         .reg_bits = 7,
1010         .val_bits = 9,
1011         .max_register = WM8960_PLL4,
1012
1013         .reg_defaults = wm8960_reg_defaults,
1014         .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
1015         .cache_type = REGCACHE_RBTREE,
1016
1017         .volatile_reg = wm8960_volatile,
1018 };
1019
1020 static void wm8960_set_pdata_from_of(struct i2c_client *i2c,
1021                                 struct wm8960_data *pdata)
1022 {
1023         const struct device_node *np = i2c->dev.of_node;
1024
1025         if (of_property_read_bool(np, "wlf,capless"))
1026                 pdata->capless = true;
1027
1028         if (of_property_read_bool(np, "wlf,shared-lrclk"))
1029                 pdata->shared_lrclk = true;
1030 }
1031
1032 static int wm8960_i2c_probe(struct i2c_client *i2c,
1033                             const struct i2c_device_id *id)
1034 {
1035         struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
1036         struct wm8960_priv *wm8960;
1037         int ret;
1038
1039         wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
1040                               GFP_KERNEL);
1041         if (wm8960 == NULL)
1042                 return -ENOMEM;
1043
1044         wm8960->mclk = devm_clk_get(&i2c->dev, "mclk");
1045         if (IS_ERR(wm8960->mclk)) {
1046                 if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER)
1047                         return -EPROBE_DEFER;
1048         }
1049
1050         wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
1051         if (IS_ERR(wm8960->regmap))
1052                 return PTR_ERR(wm8960->regmap);
1053
1054         if (pdata)
1055                 memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data));
1056         else if (i2c->dev.of_node)
1057                 wm8960_set_pdata_from_of(i2c, &wm8960->pdata);
1058
1059         ret = wm8960_reset(wm8960->regmap);
1060         if (ret != 0) {
1061                 dev_err(&i2c->dev, "Failed to issue reset\n");
1062                 return ret;
1063         }
1064
1065         if (wm8960->pdata.shared_lrclk) {
1066                 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
1067                                          0x4, 0x4);
1068                 if (ret != 0) {
1069                         dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
1070                                 ret);
1071                         return ret;
1072                 }
1073         }
1074
1075         /* Latch the update bits */
1076         regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100);
1077         regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100);
1078         regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100);
1079         regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100);
1080         regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100);
1081         regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100);
1082         regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100);
1083         regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100);
1084         regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100);
1085         regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100);
1086
1087         i2c_set_clientdata(i2c, wm8960);
1088
1089         ret = snd_soc_register_codec(&i2c->dev,
1090                         &soc_codec_dev_wm8960, &wm8960_dai, 1);
1091
1092         return ret;
1093 }
1094
1095 static int wm8960_i2c_remove(struct i2c_client *client)
1096 {
1097         snd_soc_unregister_codec(&client->dev);
1098         return 0;
1099 }
1100
1101 static const struct i2c_device_id wm8960_i2c_id[] = {
1102         { "wm8960", 0 },
1103         { }
1104 };
1105 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1106
1107 static const struct of_device_id wm8960_of_match[] = {
1108        { .compatible = "wlf,wm8960", },
1109        { }
1110 };
1111 MODULE_DEVICE_TABLE(of, wm8960_of_match);
1112
1113 static struct i2c_driver wm8960_i2c_driver = {
1114         .driver = {
1115                 .name = "wm8960",
1116                 .owner = THIS_MODULE,
1117                 .of_match_table = wm8960_of_match,
1118         },
1119         .probe =    wm8960_i2c_probe,
1120         .remove =   wm8960_i2c_remove,
1121         .id_table = wm8960_i2c_id,
1122 };
1123
1124 module_i2c_driver(wm8960_i2c_driver);
1125
1126 MODULE_DESCRIPTION("ASoC WM8960 driver");
1127 MODULE_AUTHOR("Liam Girdwood");
1128 MODULE_LICENSE("GPL");