sound/soc/codecs/wm8510.c

   1 /*
   2  * wm8510.c  --  WM8510 ALSA Soc Audio driver
   3  *
   4  * Copyright 2006 Wolfson Microelectronics PLC.
   5  *
   6  * Author: Liam Girdwood <lrg@slimlogic.co.uk>
   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/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/delay.h>
  18 #include <linux/pm.h>
  19 #include <linux/i2c.h>
  20 #include <linux/spi/spi.h>
  21 #include <linux/slab.h>
  22 #include <linux/of_device.h>
  23 #include <linux/regmap.h>
  24 #include <sound/core.h>
  25 #include <sound/pcm.h>
  26 #include <sound/pcm_params.h>
  27 #include <sound/soc.h>
  28 #include <sound/initval.h>
  29
  30 #include "wm8510.h"
  31
  32 /*
  33  * wm8510 register cache
  34  * We can't read the WM8510 register space when we are
  35  * using 2 wire for device control, so we cache them instead.
  36  */
  37 static const struct reg_default wm8510_reg_defaults[] = {
  38         {  1, 0x0000 },
  39         {  2, 0x0000 },
  40         {  3, 0x0000 },
  41         {  4, 0x0050 },
  42         {  5, 0x0000 },
  43         {  6, 0x0140 },
  44         {  7, 0x0000 },
  45         {  8, 0x0000 },
  46         {  9, 0x0000 },
  47         { 10, 0x0000 },
  48         { 11, 0x00ff },
  49         { 12, 0x0000 },
  50         { 13, 0x0000 },
  51         { 14, 0x0100 },
  52         { 15, 0x00ff },
  53         { 16, 0x0000 },
  54         { 17, 0x0000 },
  55         { 18, 0x012c },
  56         { 19, 0x002c },
  57         { 20, 0x002c },
  58         { 21, 0x002c },
  59         { 22, 0x002c },
  60         { 23, 0x0000 },
  61         { 24, 0x0032 },
  62         { 25, 0x0000 },
  63         { 26, 0x0000 },
  64         { 27, 0x0000 },
  65         { 28, 0x0000 },
  66         { 29, 0x0000 },
  67         { 30, 0x0000 },
  68         { 31, 0x0000 },
  69         { 32, 0x0038 },
  70         { 33, 0x000b },
  71         { 34, 0x0032 },
  72         { 35, 0x0000 },
  73         { 36, 0x0008 },
  74         { 37, 0x000c },
  75         { 38, 0x0093 },
  76         { 39, 0x00e9 },
  77         { 40, 0x0000 },
  78         { 41, 0x0000 },
  79         { 42, 0x0000 },
  80         { 43, 0x0000 },
  81         { 44, 0x0003 },
  82         { 45, 0x0010 },
  83         { 46, 0x0000 },
  84         { 47, 0x0000 },
  85         { 48, 0x0000 },
  86         { 49, 0x0002 },
  87         { 50, 0x0001 },
  88         { 51, 0x0000 },
  89         { 52, 0x0000 },
  90         { 53, 0x0000 },
  91         { 54, 0x0039 },
  92         { 55, 0x0000 },
  93         { 56, 0x0001 },
  94 };
  95
  96 static bool wm8510_volatile(struct device *dev, unsigned int reg)
  97 {
  98         switch (reg) {
  99         case WM8510_RESET:
 100                 return true;
 101         default:
 102                 return false;
 103         }
 104 }
 105
 106 #define WM8510_POWER1_BIASEN  0x08
 107 #define WM8510_POWER1_BUFIOEN 0x10
 108
 109 #define wm8510_reset(c) snd_soc_write(c, WM8510_RESET, 0)
 110
 111 /* codec private data */
 112 struct wm8510_priv {
 113         struct regmap *regmap;
 114 };
 115
 116 static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
 117 static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
 118 static const char *wm8510_alc[] = { "ALC", "Limiter" };
 119
 120 static const struct soc_enum wm8510_enum[] = {
 121         SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */
 122         SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */
 123         SOC_ENUM_SINGLE(WM8510_DAC,  4, 4, wm8510_deemp),
 124         SOC_ENUM_SINGLE(WM8510_ALC3,  8, 2, wm8510_alc),
 125 };
 126
 127 static const struct snd_kcontrol_new wm8510_snd_controls[] = {
 128
 129 SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
 130
 131 SOC_ENUM("DAC Companding", wm8510_enum[1]),
 132 SOC_ENUM("ADC Companding", wm8510_enum[0]),
 133
 134 SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
 135 SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
 136
 137 SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
 138
 139 SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
 140 SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
 141 SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
 142
 143 SOC_SINGLE("Capture Volume", WM8510_ADCVOL,  0, 127, 0),
 144
 145 SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1,  8, 1, 0),
 146 SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1,  4, 15, 0),
 147 SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1,  0, 15, 0),
 148
 149 SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2,  4, 7, 0),
 150 SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2,  0, 15, 0),
 151
 152 SOC_SINGLE("ALC Enable Switch", WM8510_ALC1,  8, 1, 0),
 153 SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1,  3, 7, 0),
 154 SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1,  0, 7, 0),
 155
 156 SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2,  8, 1, 0),
 157 SOC_SINGLE("ALC Capture Hold", WM8510_ALC2,  4, 7, 0),
 158 SOC_SINGLE("ALC Capture Target", WM8510_ALC2,  0, 15, 0),
 159
 160 SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
 161 SOC_SINGLE("ALC Capture Decay", WM8510_ALC3,  4, 15, 0),
 162 SOC_SINGLE("ALC Capture Attack", WM8510_ALC3,  0, 15, 0),
 163
 164 SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE,  3, 1, 0),
 165 SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE,  0, 7, 0),
 166
 167 SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA,  7, 1, 0),
 168 SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA,  0, 63, 0),
 169
 170 SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL,  7, 1, 0),
 171 SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL,  6, 1, 1),
 172 SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL,  0, 63, 0),
 173 SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
 174
 175 SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST,  8, 1, 0),
 176 SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
 177 };
 178
 179 /* Speaker Output Mixer */
 180 static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
 181 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
 182 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
 183 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
 184 };
 185
 186 /* Mono Output Mixer */
 187 static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
 188 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
 189 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
 190 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
 191 };
 192
 193 static const struct snd_kcontrol_new wm8510_boost_controls[] = {
 194 SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA,  6, 1, 1),
 195 SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
 196 SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
 197 };
 198
 199 static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
 200 SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
 201 SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
 202 SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
 203 };
 204
 205 static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
 206 SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
 207         &wm8510_speaker_mixer_controls[0],
 208         ARRAY_SIZE(wm8510_speaker_mixer_controls)),
 209 SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
 210         &wm8510_mono_mixer_controls[0],
 211         ARRAY_SIZE(wm8510_mono_mixer_controls)),
 212 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
 213 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
 214 SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
 215 SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
 216 SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
 217 SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
 218
 219 SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
 220                    &wm8510_micpga_controls[0],
 221                    ARRAY_SIZE(wm8510_micpga_controls)),
 222 SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
 223         &wm8510_boost_controls[0],
 224         ARRAY_SIZE(wm8510_boost_controls)),
 225
 226 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
 227
 228 SND_SOC_DAPM_INPUT("MICN"),
 229 SND_SOC_DAPM_INPUT("MICP"),
 230 SND_SOC_DAPM_INPUT("AUX"),
 231 SND_SOC_DAPM_OUTPUT("MONOOUT"),
 232 SND_SOC_DAPM_OUTPUT("SPKOUTP"),
 233 SND_SOC_DAPM_OUTPUT("SPKOUTN"),
 234 };
 235
 236 static const struct snd_soc_dapm_route wm8510_dapm_routes[] = {
 237         /* Mono output mixer */
 238         {"Mono Mixer", "PCM Playback Switch", "DAC"},
 239         {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
 240         {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
 241
 242         /* Speaker output mixer */
 243         {"Speaker Mixer", "PCM Playback Switch", "DAC"},
 244         {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
 245         {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
 246
 247         /* Outputs */
 248         {"Mono Out", NULL, "Mono Mixer"},
 249         {"MONOOUT", NULL, "Mono Out"},
 250         {"SpkN Out", NULL, "Speaker Mixer"},
 251         {"SpkP Out", NULL, "Speaker Mixer"},
 252         {"SPKOUTN", NULL, "SpkN Out"},
 253         {"SPKOUTP", NULL, "SpkP Out"},
 254
 255         /* Microphone PGA */
 256         {"Mic PGA", "MICN Switch", "MICN"},
 257         {"Mic PGA", "MICP Switch", "MICP"},
 258         { "Mic PGA", "AUX Switch", "Aux Input" },
 259
 260         /* Boost Mixer */
 261         {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
 262         {"Boost Mixer", "Mic Volume", "MICP"},
 263         {"Boost Mixer", "Aux Volume", "Aux Input"},
 264
 265         {"ADC", NULL, "Boost Mixer"},
 266 };
 267
 268 struct pll_ {
 269         unsigned int pre_div:4; /* prescale - 1 */
 270         unsigned int n:4;
 271         unsigned int k;
 272 };
 273
 274 static struct pll_ pll_div;
 275
 276 /* The size in bits of the pll divide multiplied by 10
 277  * to allow rounding later */
 278 #define FIXED_PLL_SIZE ((1 << 24) * 10)
 279
 280 static void pll_factors(unsigned int target, unsigned int source)
 281 {
 282         unsigned long long Kpart;
 283         unsigned int K, Ndiv, Nmod;
 284
 285         Ndiv = target / source;
 286         if (Ndiv < 6) {
 287                 source >>= 1;
 288                 pll_div.pre_div = 1;
 289                 Ndiv = target / source;
 290         } else
 291                 pll_div.pre_div = 0;
 292
 293         if ((Ndiv < 6) || (Ndiv > 12))
 294                 printk(KERN_WARNING
 295                         "WM8510 N value %u outwith recommended range!d\n",
 296                         Ndiv);
 297
 298         pll_div.n = Ndiv;
 299         Nmod = target % source;
 300         Kpart = FIXED_PLL_SIZE * (long long)Nmod;
 301
 302         do_div(Kpart, source);
 303
 304         K = Kpart & 0xFFFFFFFF;
 305
 306         /* Check if we need to round */
 307         if ((K % 10) >= 5)
 308                 K += 5;
 309
 310         /* Move down to proper range now rounding is done */
 311         K /= 10;
 312
 313         pll_div.k = K;
 314 }
 315
 316 static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
 317                 int source, unsigned int freq_in, unsigned int freq_out)
 318 {
 319         struct snd_soc_codec *codec = codec_dai->codec;
 320         u16 reg;
 321
 322         if (freq_in == 0 || freq_out == 0) {
 323                 /* Clock CODEC directly from MCLK */
 324                 reg = snd_soc_read(codec, WM8510_CLOCK);
 325                 snd_soc_write(codec, WM8510_CLOCK, reg & 0x0ff);
 326
 327                 /* Turn off PLL */
 328                 reg = snd_soc_read(codec, WM8510_POWER1);
 329                 snd_soc_write(codec, WM8510_POWER1, reg & 0x1df);
 330                 return 0;
 331         }
 332
 333         pll_factors(freq_out*4, freq_in);
 334
 335         snd_soc_write(codec, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
 336         snd_soc_write(codec, WM8510_PLLK1, pll_div.k >> 18);
 337         snd_soc_write(codec, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
 338         snd_soc_write(codec, WM8510_PLLK3, pll_div.k & 0x1ff);
 339         reg = snd_soc_read(codec, WM8510_POWER1);
 340         snd_soc_write(codec, WM8510_POWER1, reg | 0x020);
 341
 342         /* Run CODEC from PLL instead of MCLK */
 343         reg = snd_soc_read(codec, WM8510_CLOCK);
 344         snd_soc_write(codec, WM8510_CLOCK, reg | 0x100);
 345
 346         return 0;
 347 }
 348
 349 /*
 350  * Configure WM8510 clock dividers.
 351  */
 352 static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
 353                 int div_id, int div)
 354 {
 355         struct snd_soc_codec *codec = codec_dai->codec;
 356         u16 reg;
 357
 358         switch (div_id) {
 359         case WM8510_OPCLKDIV:
 360                 reg = snd_soc_read(codec, WM8510_GPIO) & 0x1cf;
 361                 snd_soc_write(codec, WM8510_GPIO, reg | div);
 362                 break;
 363         case WM8510_MCLKDIV:
 364                 reg = snd_soc_read(codec, WM8510_CLOCK) & 0x11f;
 365                 snd_soc_write(codec, WM8510_CLOCK, reg | div);
 366                 break;
 367         case WM8510_ADCCLK:
 368                 reg = snd_soc_read(codec, WM8510_ADC) & 0x1f7;
 369                 snd_soc_write(codec, WM8510_ADC, reg | div);
 370                 break;
 371         case WM8510_DACCLK:
 372                 reg = snd_soc_read(codec, WM8510_DAC) & 0x1f7;
 373                 snd_soc_write(codec, WM8510_DAC, reg | div);
 374                 break;
 375         case WM8510_BCLKDIV:
 376                 reg = snd_soc_read(codec, WM8510_CLOCK) & 0x1e3;
 377                 snd_soc_write(codec, WM8510_CLOCK, reg | div);
 378                 break;
 379         default:
 380                 return -EINVAL;
 381         }
 382
 383         return 0;
 384 }
 385
 386 static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai,
 387                 unsigned int fmt)
 388 {
 389         struct snd_soc_codec *codec = codec_dai->codec;
 390         u16 iface = 0;
 391         u16 clk = snd_soc_read(codec, WM8510_CLOCK) & 0x1fe;
 392
 393         /* set master/slave audio interface */
 394         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 395         case SND_SOC_DAIFMT_CBM_CFM:
 396                 clk |= 0x0001;
 397                 break;
 398         case SND_SOC_DAIFMT_CBS_CFS:
 399                 break;
 400         default:
 401                 return -EINVAL;
 402         }
 403
 404         /* interface format */
 405         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 406         case SND_SOC_DAIFMT_I2S:
 407                 iface |= 0x0010;
 408                 break;
 409         case SND_SOC_DAIFMT_RIGHT_J:
 410                 break;
 411         case SND_SOC_DAIFMT_LEFT_J:
 412                 iface |= 0x0008;
 413                 break;
 414         case SND_SOC_DAIFMT_DSP_A:
 415                 iface |= 0x00018;
 416                 break;
 417         default:
 418                 return -EINVAL;
 419         }
 420
 421         /* clock inversion */
 422         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 423         case SND_SOC_DAIFMT_NB_NF:
 424                 break;
 425         case SND_SOC_DAIFMT_IB_IF:
 426                 iface |= 0x0180;
 427                 break;
 428         case SND_SOC_DAIFMT_IB_NF:
 429                 iface |= 0x0100;
 430                 break;
 431         case SND_SOC_DAIFMT_NB_IF:
 432                 iface |= 0x0080;
 433                 break;
 434         default:
 435                 return -EINVAL;
 436         }
 437
 438         snd_soc_write(codec, WM8510_IFACE, iface);
 439         snd_soc_write(codec, WM8510_CLOCK, clk);
 440         return 0;
 441 }
 442
 443 static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
 444                                 struct snd_pcm_hw_params *params,
 445                                 struct snd_soc_dai *dai)
 446 {
 447         struct snd_soc_codec *codec = dai->codec;
 448         u16 iface = snd_soc_read(codec, WM8510_IFACE) & 0x19f;
 449         u16 adn = snd_soc_read(codec, WM8510_ADD) & 0x1f1;
 450
 451         /* bit size */
 452         switch (params_format(params)) {
 453         case SNDRV_PCM_FORMAT_S16_LE:
 454                 break;
 455         case SNDRV_PCM_FORMAT_S20_3LE:
 456                 iface |= 0x0020;
 457                 break;
 458         case SNDRV_PCM_FORMAT_S24_LE:
 459                 iface |= 0x0040;
 460                 break;
 461         case SNDRV_PCM_FORMAT_S32_LE:
 462                 iface |= 0x0060;
 463                 break;
 464         }
 465
 466         /* filter coefficient */
 467         switch (params_rate(params)) {
 468         case 8000:
 469                 adn |= 0x5 << 1;
 470                 break;
 471         case 11025:
 472                 adn |= 0x4 << 1;
 473                 break;
 474         case 16000:
 475                 adn |= 0x3 << 1;
 476                 break;
 477         case 22050:
 478                 adn |= 0x2 << 1;
 479                 break;
 480         case 32000:
 481                 adn |= 0x1 << 1;
 482                 break;
 483         case 44100:
 484         case 48000:
 485                 break;
 486         }
 487
 488         snd_soc_write(codec, WM8510_IFACE, iface);
 489         snd_soc_write(codec, WM8510_ADD, adn);
 490         return 0;
 491 }
 492
 493 static int wm8510_mute(struct snd_soc_dai *dai, int mute)
 494 {
 495         struct snd_soc_codec *codec = dai->codec;
 496         u16 mute_reg = snd_soc_read(codec, WM8510_DAC) & 0xffbf;
 497
 498         if (mute)
 499                 snd_soc_write(codec, WM8510_DAC, mute_reg | 0x40);
 500         else
 501                 snd_soc_write(codec, WM8510_DAC, mute_reg);
 502         return 0;
 503 }
 504
 505 /* liam need to make this lower power with dapm */
 506 static int wm8510_set_bias_level(struct snd_soc_codec *codec,
 507         enum snd_soc_bias_level level)
 508 {
 509         struct wm8510_priv *wm8510 = snd_soc_codec_get_drvdata(codec);
 510         u16 power1 = snd_soc_read(codec, WM8510_POWER1) & ~0x3;
 511
 512         switch (level) {
 513         case SND_SOC_BIAS_ON:
 514         case SND_SOC_BIAS_PREPARE:
 515                 power1 |= 0x1;  /* VMID 50k */
 516                 snd_soc_write(codec, WM8510_POWER1, power1);
 517                 break;
 518
 519         case SND_SOC_BIAS_STANDBY:
 520                 power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN;
 521
 522                 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
 523                         regcache_sync(wm8510->regmap);
 524
 525                         /* Initial cap charge at VMID 5k */
 526                         snd_soc_write(codec, WM8510_POWER1, power1 | 0x3);
 527                         mdelay(100);
 528                 }
 529
 530                 power1 |= 0x2;  /* VMID 500k */
 531                 snd_soc_write(codec, WM8510_POWER1, power1);
 532                 break;
 533
 534         case SND_SOC_BIAS_OFF:
 535                 snd_soc_write(codec, WM8510_POWER1, 0);
 536                 snd_soc_write(codec, WM8510_POWER2, 0);
 537                 snd_soc_write(codec, WM8510_POWER3, 0);
 538                 break;
 539         }
 540
 541         codec->dapm.bias_level = level;
 542         return 0;
 543 }
 544
 545 #define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
 546                 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
 547                 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
 548
 549 #define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 550         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
 551
 552 static const struct snd_soc_dai_ops wm8510_dai_ops = {
 553         .hw_params      = wm8510_pcm_hw_params,
 554         .digital_mute   = wm8510_mute,
 555         .set_fmt        = wm8510_set_dai_fmt,
 556         .set_clkdiv     = wm8510_set_dai_clkdiv,
 557         .set_pll        = wm8510_set_dai_pll,
 558 };
 559
 560 static struct snd_soc_dai_driver wm8510_dai = {
 561         .name = "wm8510-hifi",
 562         .playback = {
 563                 .stream_name = "Playback",
 564                 .channels_min = 2,
 565                 .channels_max = 2,
 566                 .rates = WM8510_RATES,
 567                 .formats = WM8510_FORMATS,},
 568         .capture = {
 569                 .stream_name = "Capture",
 570                 .channels_min = 2,
 571                 .channels_max = 2,
 572                 .rates = WM8510_RATES,
 573                 .formats = WM8510_FORMATS,},
 574         .ops = &wm8510_dai_ops,
 575         .symmetric_rates = 1,
 576 };
 577
 578 static int wm8510_suspend(struct snd_soc_codec *codec)
 579 {
 580         wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
 581         return 0;
 582 }
 583
 584 static int wm8510_resume(struct snd_soc_codec *codec)
 585 {
 586         wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 587         return 0;
 588 }
 589
 590 static int wm8510_probe(struct snd_soc_codec *codec)
 591 {
 592         int ret;
 593
 594         ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP);
 595         if (ret < 0) {
 596                 printk(KERN_ERR "wm8510: failed to set cache I/O: %d\n", ret);
 597                 return ret;
 598         }
 599
 600         wm8510_reset(codec);
 601
 602         /* power on device */
 603         wm8510_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 604
 605         return ret;
 606 }
 607
 608 /* power down chip */
 609 static int wm8510_remove(struct snd_soc_codec *codec)
 610 {
 611         wm8510_set_bias_level(codec, SND_SOC_BIAS_OFF);
 612         return 0;
 613 }
 614
 615 static struct snd_soc_codec_driver soc_codec_dev_wm8510 = {
 616         .probe =        wm8510_probe,
 617         .remove =       wm8510_remove,
 618         .suspend =      wm8510_suspend,
 619         .resume =       wm8510_resume,
 620         .set_bias_level = wm8510_set_bias_level,
 621
 622         .controls = wm8510_snd_controls,
 623         .num_controls = ARRAY_SIZE(wm8510_snd_controls),
 624         .dapm_widgets = wm8510_dapm_widgets,
 625         .num_dapm_widgets = ARRAY_SIZE(wm8510_dapm_widgets),
 626         .dapm_routes = wm8510_dapm_routes,
 627         .num_dapm_routes = ARRAY_SIZE(wm8510_dapm_routes),
 628 };
 629
 630 static const struct of_device_id wm8510_of_match[] = {
 631         { .compatible = "wlf,wm8510" },
 632         { },
 633 };
 634
 635 static const struct regmap_config wm8510_regmap = {
 636         .reg_bits = 7,
 637         .val_bits = 9,
 638         .max_register = WM8510_MONOMIX,
 639
 640         .reg_defaults = wm8510_reg_defaults,
 641         .num_reg_defaults = ARRAY_SIZE(wm8510_reg_defaults),
 642         .cache_type = REGCACHE_RBTREE,
 643
 644         .volatile_reg = wm8510_volatile,
 645 };
 646
 647 #if defined(CONFIG_SPI_MASTER)
 648 static int wm8510_spi_probe(struct spi_device *spi)
 649 {
 650         struct wm8510_priv *wm8510;
 651         int ret;
 652
 653         wm8510 = devm_kzalloc(&spi->dev, sizeof(struct wm8510_priv),
 654                               GFP_KERNEL);
 655         if (wm8510 == NULL)
 656                 return -ENOMEM;
 657
 658         wm8510->regmap = devm_regmap_init_spi(spi, &wm8510_regmap);
 659         if (IS_ERR(wm8510->regmap))
 660                 return PTR_ERR(wm8510->regmap);
 661
 662         spi_set_drvdata(spi, wm8510);
 663
 664         ret = snd_soc_register_codec(&spi->dev,
 665                         &soc_codec_dev_wm8510, &wm8510_dai, 1);
 666
 667         return ret;
 668 }
 669
 670 static int wm8510_spi_remove(struct spi_device *spi)
 671 {
 672         snd_soc_unregister_codec(&spi->dev);
 673         return 0;
 674 }
 675
 676 static struct spi_driver wm8510_spi_driver = {
 677         .driver = {
 678                 .name   = "wm8510",
 679                 .owner  = THIS_MODULE,
 680                 .of_match_table = wm8510_of_match,
 681         },
 682         .probe          = wm8510_spi_probe,
 683         .remove         = wm8510_spi_remove,
 684 };
 685 #endif /* CONFIG_SPI_MASTER */
 686
 687 #if IS_ENABLED(CONFIG_I2C)
 688 static int wm8510_i2c_probe(struct i2c_client *i2c,
 689                             const struct i2c_device_id *id)
 690 {
 691         struct wm8510_priv *wm8510;
 692         int ret;
 693
 694         wm8510 = devm_kzalloc(&i2c->dev, sizeof(struct wm8510_priv),
 695                               GFP_KERNEL);
 696         if (wm8510 == NULL)
 697                 return -ENOMEM;
 698
 699         wm8510->regmap = devm_regmap_init_i2c(i2c, &wm8510_regmap);
 700         if (IS_ERR(wm8510->regmap))
 701                 return PTR_ERR(wm8510->regmap);
 702
 703         i2c_set_clientdata(i2c, wm8510);
 704
 705         ret =  snd_soc_register_codec(&i2c->dev,
 706                         &soc_codec_dev_wm8510, &wm8510_dai, 1);
 707
 708         return ret;
 709 }
 710
 711 static int wm8510_i2c_remove(struct i2c_client *client)
 712 {
 713         snd_soc_unregister_codec(&client->dev);
 714         return 0;
 715 }
 716
 717 static const struct i2c_device_id wm8510_i2c_id[] = {
 718         { "wm8510", 0 },
 719         { }
 720 };
 721 MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
 722
 723 static struct i2c_driver wm8510_i2c_driver = {
 724         .driver = {
 725                 .name = "wm8510",
 726                 .owner = THIS_MODULE,
 727                 .of_match_table = wm8510_of_match,
 728         },
 729         .probe =    wm8510_i2c_probe,
 730         .remove =   wm8510_i2c_remove,
 731         .id_table = wm8510_i2c_id,
 732 };
 733 #endif
 734
 735 static int __init wm8510_modinit(void)
 736 {
 737         int ret = 0;
 738 #if IS_ENABLED(CONFIG_I2C)
 739         ret = i2c_add_driver(&wm8510_i2c_driver);
 740         if (ret != 0) {
 741                 printk(KERN_ERR "Failed to register WM8510 I2C driver: %d\n",
 742                        ret);
 743         }
 744 #endif
 745 #if defined(CONFIG_SPI_MASTER)
 746         ret = spi_register_driver(&wm8510_spi_driver);
 747         if (ret != 0) {
 748                 printk(KERN_ERR "Failed to register WM8510 SPI driver: %d\n",
 749                        ret);
 750         }
 751 #endif
 752         return ret;
 753 }
 754 module_init(wm8510_modinit);
 755
 756 static void __exit wm8510_exit(void)
 757 {
 758 #if IS_ENABLED(CONFIG_I2C)
 759         i2c_del_driver(&wm8510_i2c_driver);
 760 #endif
 761 #if defined(CONFIG_SPI_MASTER)
 762         spi_unregister_driver(&wm8510_spi_driver);
 763 #endif
 764 }
 765 module_exit(wm8510_exit);
 766
 767 MODULE_DESCRIPTION("ASoC WM8510 driver");
 768 MODULE_AUTHOR("Liam Girdwood");
 769 MODULE_LICENSE("GPL");