linux/sound/soc/codecs/wm8510.c
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   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 */
  37static 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
  96static 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 */
 112struct wm8510_priv {
 113        struct regmap *regmap;
 114};
 115
 116static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
 117static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
 118static const char *wm8510_alc[] = { "ALC", "Limiter" };
 119
 120static 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
 127static const struct snd_kcontrol_new wm8510_snd_controls[] = {
 128
 129SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
 130
 131SOC_ENUM("DAC Companding", wm8510_enum[1]),
 132SOC_ENUM("ADC Companding", wm8510_enum[0]),
 133
 134SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
 135SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
 136
 137SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
 138
 139SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
 140SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
 141SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
 142
 143SOC_SINGLE("Capture Volume", WM8510_ADCVOL,  0, 127, 0),
 144
 145SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1,  8, 1, 0),
 146SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1,  4, 15, 0),
 147SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1,  0, 15, 0),
 148
 149SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2,  4, 7, 0),
 150SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2,  0, 15, 0),
 151
 152SOC_SINGLE("ALC Enable Switch", WM8510_ALC1,  8, 1, 0),
 153SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1,  3, 7, 0),
 154SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1,  0, 7, 0),
 155
 156SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2,  8, 1, 0),
 157SOC_SINGLE("ALC Capture Hold", WM8510_ALC2,  4, 7, 0),
 158SOC_SINGLE("ALC Capture Target", WM8510_ALC2,  0, 15, 0),
 159
 160SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
 161SOC_SINGLE("ALC Capture Decay", WM8510_ALC3,  4, 15, 0),
 162SOC_SINGLE("ALC Capture Attack", WM8510_ALC3,  0, 15, 0),
 163
 164SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE,  3, 1, 0),
 165SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE,  0, 7, 0),
 166
 167SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA,  7, 1, 0),
 168SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA,  0, 63, 0),
 169
 170SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL,  7, 1, 0),
 171SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL,  6, 1, 1),
 172SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL,  0, 63, 0),
 173SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
 174
 175SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST,  8, 1, 0),
 176SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
 177};
 178
 179/* Speaker Output Mixer */
 180static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
 181SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
 182SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
 183SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
 184};
 185
 186/* Mono Output Mixer */
 187static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
 188SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
 189SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
 190SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
 191};
 192
 193static const struct snd_kcontrol_new wm8510_boost_controls[] = {
 194SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA,  6, 1, 1),
 195SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
 196SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
 197};
 198
 199static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
 200SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
 201SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
 202SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
 203};
 204
 205static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
 206SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
 207        &wm8510_speaker_mixer_controls[0],
 208        ARRAY_SIZE(wm8510_speaker_mixer_controls)),
 209SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
 210        &wm8510_mono_mixer_controls[0],
 211        ARRAY_SIZE(wm8510_mono_mixer_controls)),
 212SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
 213SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
 214SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
 215SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
 216SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
 217SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
 218
 219SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
 220                   &wm8510_micpga_controls[0],
 221                   ARRAY_SIZE(wm8510_micpga_controls)),
 222SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
 223        &wm8510_boost_controls[0],
 224        ARRAY_SIZE(wm8510_boost_controls)),
 225
 226SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
 227
 228SND_SOC_DAPM_INPUT("MICN"),
 229SND_SOC_DAPM_INPUT("MICP"),
 230SND_SOC_DAPM_INPUT("AUX"),
 231SND_SOC_DAPM_OUTPUT("MONOOUT"),
 232SND_SOC_DAPM_OUTPUT("SPKOUTP"),
 233SND_SOC_DAPM_OUTPUT("SPKOUTN"),
 234};
 235
 236static 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
 268struct pll_ {
 269        unsigned int pre_div:4; /* prescale - 1 */
 270        unsigned int n:4;
 271        unsigned int k;
 272};
 273
 274static 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
 280static 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
 316static 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 */
 352static 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
 386static 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
 443static 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_width(params)) {
 453        case 16:
 454                break;
 455        case 20:
 456                iface |= 0x0020;
 457                break;
 458        case 24:
 459                iface |= 0x0040;
 460                break;
 461        case 32:
 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
 493static 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 */
 506static 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 (snd_soc_codec_get_bias_level(codec) == 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        return 0;
 542}
 543
 544#define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
 545                SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
 546                SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
 547
 548#define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 549        SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
 550
 551static const struct snd_soc_dai_ops wm8510_dai_ops = {
 552        .hw_params      = wm8510_pcm_hw_params,
 553        .digital_mute   = wm8510_mute,
 554        .set_fmt        = wm8510_set_dai_fmt,
 555        .set_clkdiv     = wm8510_set_dai_clkdiv,
 556        .set_pll        = wm8510_set_dai_pll,
 557};
 558
 559static struct snd_soc_dai_driver wm8510_dai = {
 560        .name = "wm8510-hifi",
 561        .playback = {
 562                .stream_name = "Playback",
 563                .channels_min = 2,
 564                .channels_max = 2,
 565                .rates = WM8510_RATES,
 566                .formats = WM8510_FORMATS,},
 567        .capture = {
 568                .stream_name = "Capture",
 569                .channels_min = 2,
 570                .channels_max = 2,
 571                .rates = WM8510_RATES,
 572                .formats = WM8510_FORMATS,},
 573        .ops = &wm8510_dai_ops,
 574        .symmetric_rates = 1,
 575};
 576
 577static int wm8510_probe(struct snd_soc_codec *codec)
 578{
 579        wm8510_reset(codec);
 580
 581        return 0;
 582}
 583
 584static struct snd_soc_codec_driver soc_codec_dev_wm8510 = {
 585        .probe =        wm8510_probe,
 586        .set_bias_level = wm8510_set_bias_level,
 587        .suspend_bias_off = true,
 588
 589        .controls = wm8510_snd_controls,
 590        .num_controls = ARRAY_SIZE(wm8510_snd_controls),
 591        .dapm_widgets = wm8510_dapm_widgets,
 592        .num_dapm_widgets = ARRAY_SIZE(wm8510_dapm_widgets),
 593        .dapm_routes = wm8510_dapm_routes,
 594        .num_dapm_routes = ARRAY_SIZE(wm8510_dapm_routes),
 595};
 596
 597static const struct of_device_id wm8510_of_match[] = {
 598        { .compatible = "wlf,wm8510" },
 599        { },
 600};
 601MODULE_DEVICE_TABLE(of, wm8510_of_match);
 602
 603static const struct regmap_config wm8510_regmap = {
 604        .reg_bits = 7,
 605        .val_bits = 9,
 606        .max_register = WM8510_MONOMIX,
 607
 608        .reg_defaults = wm8510_reg_defaults,
 609        .num_reg_defaults = ARRAY_SIZE(wm8510_reg_defaults),
 610        .cache_type = REGCACHE_RBTREE,
 611
 612        .volatile_reg = wm8510_volatile,
 613};
 614
 615#if defined(CONFIG_SPI_MASTER)
 616static int wm8510_spi_probe(struct spi_device *spi)
 617{
 618        struct wm8510_priv *wm8510;
 619        int ret;
 620
 621        wm8510 = devm_kzalloc(&spi->dev, sizeof(struct wm8510_priv),
 622                              GFP_KERNEL);
 623        if (wm8510 == NULL)
 624                return -ENOMEM;
 625
 626        wm8510->regmap = devm_regmap_init_spi(spi, &wm8510_regmap);
 627        if (IS_ERR(wm8510->regmap))
 628                return PTR_ERR(wm8510->regmap);
 629
 630        spi_set_drvdata(spi, wm8510);
 631
 632        ret = snd_soc_register_codec(&spi->dev,
 633                        &soc_codec_dev_wm8510, &wm8510_dai, 1);
 634
 635        return ret;
 636}
 637
 638static int wm8510_spi_remove(struct spi_device *spi)
 639{
 640        snd_soc_unregister_codec(&spi->dev);
 641        return 0;
 642}
 643
 644static struct spi_driver wm8510_spi_driver = {
 645        .driver = {
 646                .name   = "wm8510",
 647                .of_match_table = wm8510_of_match,
 648        },
 649        .probe          = wm8510_spi_probe,
 650        .remove         = wm8510_spi_remove,
 651};
 652#endif /* CONFIG_SPI_MASTER */
 653
 654#if IS_ENABLED(CONFIG_I2C)
 655static int wm8510_i2c_probe(struct i2c_client *i2c,
 656                            const struct i2c_device_id *id)
 657{
 658        struct wm8510_priv *wm8510;
 659        int ret;
 660
 661        wm8510 = devm_kzalloc(&i2c->dev, sizeof(struct wm8510_priv),
 662                              GFP_KERNEL);
 663        if (wm8510 == NULL)
 664                return -ENOMEM;
 665
 666        wm8510->regmap = devm_regmap_init_i2c(i2c, &wm8510_regmap);
 667        if (IS_ERR(wm8510->regmap))
 668                return PTR_ERR(wm8510->regmap);
 669
 670        i2c_set_clientdata(i2c, wm8510);
 671
 672        ret =  snd_soc_register_codec(&i2c->dev,
 673                        &soc_codec_dev_wm8510, &wm8510_dai, 1);
 674
 675        return ret;
 676}
 677
 678static int wm8510_i2c_remove(struct i2c_client *client)
 679{
 680        snd_soc_unregister_codec(&client->dev);
 681        return 0;
 682}
 683
 684static const struct i2c_device_id wm8510_i2c_id[] = {
 685        { "wm8510", 0 },
 686        { }
 687};
 688MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
 689
 690static struct i2c_driver wm8510_i2c_driver = {
 691        .driver = {
 692                .name = "wm8510",
 693                .of_match_table = wm8510_of_match,
 694        },
 695        .probe =    wm8510_i2c_probe,
 696        .remove =   wm8510_i2c_remove,
 697        .id_table = wm8510_i2c_id,
 698};
 699#endif
 700
 701static int __init wm8510_modinit(void)
 702{
 703        int ret = 0;
 704#if IS_ENABLED(CONFIG_I2C)
 705        ret = i2c_add_driver(&wm8510_i2c_driver);
 706        if (ret != 0) {
 707                printk(KERN_ERR "Failed to register WM8510 I2C driver: %d\n",
 708                       ret);
 709        }
 710#endif
 711#if defined(CONFIG_SPI_MASTER)
 712        ret = spi_register_driver(&wm8510_spi_driver);
 713        if (ret != 0) {
 714                printk(KERN_ERR "Failed to register WM8510 SPI driver: %d\n",
 715                       ret);
 716        }
 717#endif
 718        return ret;
 719}
 720module_init(wm8510_modinit);
 721
 722static void __exit wm8510_exit(void)
 723{
 724#if IS_ENABLED(CONFIG_I2C)
 725        i2c_del_driver(&wm8510_i2c_driver);
 726#endif
 727#if defined(CONFIG_SPI_MASTER)
 728        spi_unregister_driver(&wm8510_spi_driver);
 729#endif
 730}
 731module_exit(wm8510_exit);
 732
 733MODULE_DESCRIPTION("ASoC WM8510 driver");
 734MODULE_AUTHOR("Liam Girdwood");
 735MODULE_LICENSE("GPL");
 736