linux/sound/soc/codecs/tlv320aic23.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * ALSA SoC TLV320AIC23 codec driver
   4 *
   5 * Author:      Arun KS, <arunks@mistralsolutions.com>
   6 * Copyright:   (C) 2008 Mistral Solutions Pvt Ltd.,
   7 *
   8 * Based on sound/soc/codecs/wm8731.c by Richard Purdie
   9 *
  10 * Notes:
  11 *  The AIC23 is a driver for a low power stereo audio
  12 *  codec tlv320aic23
  13 *
  14 *  The machine layer should disable unsupported inputs/outputs by
  15 *  snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc.
  16 */
  17
  18#include <linux/module.h>
  19#include <linux/moduleparam.h>
  20#include <linux/init.h>
  21#include <linux/delay.h>
  22#include <linux/pm.h>
  23#include <linux/regmap.h>
  24#include <linux/slab.h>
  25#include <sound/core.h>
  26#include <sound/pcm.h>
  27#include <sound/pcm_params.h>
  28#include <sound/soc.h>
  29#include <sound/tlv.h>
  30#include <sound/initval.h>
  31
  32#include "tlv320aic23.h"
  33
  34/*
  35 * AIC23 register cache
  36 */
  37static const struct reg_default tlv320aic23_reg[] = {
  38        {  0, 0x0097 },
  39        {  1, 0x0097 },
  40        {  2, 0x00F9 },
  41        {  3, 0x00F9 },
  42        {  4, 0x001A },
  43        {  5, 0x0004 },
  44        {  6, 0x0007 },
  45        {  7, 0x0001 },
  46        {  8, 0x0020 },
  47        {  9, 0x0000 },
  48};
  49
  50const struct regmap_config tlv320aic23_regmap = {
  51        .reg_bits = 7,
  52        .val_bits = 9,
  53
  54        .max_register = TLV320AIC23_RESET,
  55        .reg_defaults = tlv320aic23_reg,
  56        .num_reg_defaults = ARRAY_SIZE(tlv320aic23_reg),
  57        .cache_type = REGCACHE_RBTREE,
  58};
  59EXPORT_SYMBOL(tlv320aic23_regmap);
  60
  61static const char *rec_src_text[] = { "Line", "Mic" };
  62static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};
  63
  64static SOC_ENUM_SINGLE_DECL(rec_src_enum,
  65                            TLV320AIC23_ANLG, 2, rec_src_text);
  66
  67static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =
  68SOC_DAPM_ENUM("Input Select", rec_src_enum);
  69
  70static SOC_ENUM_SINGLE_DECL(tlv320aic23_deemph,
  71                            TLV320AIC23_DIGT, 1, deemph_text);
  72
  73static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);
  74static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);
  75static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0);
  76
  77static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol,
  78        struct snd_ctl_elem_value *ucontrol)
  79{
  80        struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
  81        u16 val, reg;
  82
  83        val = (ucontrol->value.integer.value[0] & 0x07);
  84
  85        /* linear conversion to userspace
  86        * 000   =       -6db
  87        * 001   =       -9db
  88        * 010   =       -12db
  89        * 011   =       -18db (Min)
  90        * 100   =       0db (Max)
  91        */
  92        val = (val >= 4) ? 4  : (3 - val);
  93
  94        reg = snd_soc_component_read(component, TLV320AIC23_ANLG) & (~0x1C0);
  95        snd_soc_component_write(component, TLV320AIC23_ANLG, reg | (val << 6));
  96
  97        return 0;
  98}
  99
 100static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol,
 101        struct snd_ctl_elem_value *ucontrol)
 102{
 103        struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 104        u16 val;
 105
 106        val = snd_soc_component_read(component, TLV320AIC23_ANLG) & (0x1C0);
 107        val = val >> 6;
 108        val = (val >= 4) ? 4  : (3 -  val);
 109        ucontrol->value.integer.value[0] = val;
 110        return 0;
 111
 112}
 113
 114static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {
 115        SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL,
 116                         TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv),
 117        SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1),
 118        SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL,
 119                     TLV320AIC23_RINVOL, 7, 1, 0),
 120        SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL,
 121                         TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv),
 122        SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1),
 123        SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0),
 124        SOC_SINGLE_EXT_TLV("Sidetone Volume", TLV320AIC23_ANLG, 6, 4, 0,
 125                           snd_soc_tlv320aic23_get_volsw,
 126                           snd_soc_tlv320aic23_put_volsw, sidetone_vol_tlv),
 127        SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
 128};
 129
 130/* PGA Mixer controls for Line and Mic switch */
 131static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
 132        SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
 133        SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),
 134        SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),
 135};
 136
 137static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
 138        SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),
 139        SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),
 140        SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,
 141                         &tlv320aic23_rec_src_mux_controls),
 142        SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,
 143                           &tlv320aic23_output_mixer_controls[0],
 144                           ARRAY_SIZE(tlv320aic23_output_mixer_controls)),
 145        SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),
 146        SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),
 147
 148        SND_SOC_DAPM_OUTPUT("LHPOUT"),
 149        SND_SOC_DAPM_OUTPUT("RHPOUT"),
 150        SND_SOC_DAPM_OUTPUT("LOUT"),
 151        SND_SOC_DAPM_OUTPUT("ROUT"),
 152
 153        SND_SOC_DAPM_INPUT("LLINEIN"),
 154        SND_SOC_DAPM_INPUT("RLINEIN"),
 155
 156        SND_SOC_DAPM_INPUT("MICIN"),
 157};
 158
 159static const struct snd_soc_dapm_route tlv320aic23_intercon[] = {
 160        /* Output Mixer */
 161        {"Output Mixer", "Line Bypass Switch", "Line Input"},
 162        {"Output Mixer", "Playback Switch", "DAC"},
 163        {"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
 164
 165        /* Outputs */
 166        {"RHPOUT", NULL, "Output Mixer"},
 167        {"LHPOUT", NULL, "Output Mixer"},
 168        {"LOUT", NULL, "Output Mixer"},
 169        {"ROUT", NULL, "Output Mixer"},
 170
 171        /* Inputs */
 172        {"Line Input", NULL, "LLINEIN"},
 173        {"Line Input", NULL, "RLINEIN"},
 174        {"Mic Input", NULL, "MICIN"},
 175
 176        /* input mux */
 177        {"Capture Source", "Line", "Line Input"},
 178        {"Capture Source", "Mic", "Mic Input"},
 179        {"ADC", NULL, "Capture Source"},
 180
 181};
 182
 183/* AIC23 driver data */
 184struct aic23 {
 185        struct regmap *regmap;
 186        int mclk;
 187        int requested_adc;
 188        int requested_dac;
 189};
 190
 191/*
 192 * Common Crystals used
 193 * 11.2896 Mhz /128 = *88.2k  /192 = 58.8k
 194 * 12.0000 Mhz /125 = *96k    /136 = 88.235K
 195 * 12.2880 Mhz /128 = *96k    /192 = 64k
 196 * 16.9344 Mhz /128 = 132.3k /192 = *88.2k
 197 * 18.4320 Mhz /128 = 144k   /192 = *96k
 198 */
 199
 200/*
 201 * Normal BOSR 0-256/2 = 128, 1-384/2 = 192
 202 * USB BOSR 0-250/2 = 125, 1-272/2 = 136
 203 */
 204static const int bosr_usb_divisor_table[] = {
 205        128, 125, 192, 136
 206};
 207#define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7))
 208#define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11)        | (1<<15))
 209static const unsigned short sr_valid_mask[] = {
 210        LOWER_GROUP|UPPER_GROUP,        /* Normal, bosr - 0*/
 211        LOWER_GROUP,                    /* Usb, bosr - 0*/
 212        LOWER_GROUP|UPPER_GROUP,        /* Normal, bosr - 1*/
 213        UPPER_GROUP,                    /* Usb, bosr - 1*/
 214};
 215/*
 216 * Every divisor is a factor of 11*12
 217 */
 218#define SR_MULT (11*12)
 219#define A(x) (SR_MULT/x)
 220static const unsigned char sr_adc_mult_table[] = {
 221        A(2), A(2), A(12), A(12),  0, 0, A(3), A(1),
 222        A(2), A(2), A(11), A(11),  0, 0, 0, A(1)
 223};
 224static const unsigned char sr_dac_mult_table[] = {
 225        A(2), A(12), A(2), A(12),  0, 0, A(3), A(1),
 226        A(2), A(11), A(2), A(11),  0, 0, 0, A(1)
 227};
 228
 229static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc,
 230                int dac, int dac_l, int dac_h, int need_dac)
 231{
 232        if ((adc >= adc_l) && (adc <= adc_h) &&
 233                        (dac >= dac_l) && (dac <= dac_h)) {
 234                int diff_adc = need_adc - adc;
 235                int diff_dac = need_dac - dac;
 236                return abs(diff_adc) + abs(diff_dac);
 237        }
 238        return UINT_MAX;
 239}
 240
 241static int find_rate(int mclk, u32 need_adc, u32 need_dac)
 242{
 243        int i, j;
 244        int best_i = -1;
 245        int best_j = -1;
 246        int best_div = 0;
 247        unsigned best_score = UINT_MAX;
 248        int adc_l, adc_h, dac_l, dac_h;
 249
 250        need_adc *= SR_MULT;
 251        need_dac *= SR_MULT;
 252        /*
 253         * rates given are +/- 1/32
 254         */
 255        adc_l = need_adc - (need_adc >> 5);
 256        adc_h = need_adc + (need_adc >> 5);
 257        dac_l = need_dac - (need_dac >> 5);
 258        dac_h = need_dac + (need_dac >> 5);
 259        for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) {
 260                int base = mclk / bosr_usb_divisor_table[i];
 261                int mask = sr_valid_mask[i];
 262                for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table);
 263                                j++, mask >>= 1) {
 264                        int adc;
 265                        int dac;
 266                        int score;
 267                        if ((mask & 1) == 0)
 268                                continue;
 269                        adc = base * sr_adc_mult_table[j];
 270                        dac = base * sr_dac_mult_table[j];
 271                        score = get_score(adc, adc_l, adc_h, need_adc,
 272                                        dac, dac_l, dac_h, need_dac);
 273                        if (best_score > score) {
 274                                best_score = score;
 275                                best_i = i;
 276                                best_j = j;
 277                                best_div = 0;
 278                        }
 279                        score = get_score((adc >> 1), adc_l, adc_h, need_adc,
 280                                        (dac >> 1), dac_l, dac_h, need_dac);
 281                        /* prefer to have a /2 */
 282                        if ((score != UINT_MAX) && (best_score >= score)) {
 283                                best_score = score;
 284                                best_i = i;
 285                                best_j = j;
 286                                best_div = 1;
 287                        }
 288                }
 289        }
 290        return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT);
 291}
 292
 293#ifdef DEBUG
 294static void get_current_sample_rates(struct snd_soc_component *component, int mclk,
 295                u32 *sample_rate_adc, u32 *sample_rate_dac)
 296{
 297        int src = snd_soc_component_read(component, TLV320AIC23_SRATE);
 298        int sr = (src >> 2) & 0x0f;
 299        int val = (mclk / bosr_usb_divisor_table[src & 3]);
 300        int adc = (val * sr_adc_mult_table[sr]) / SR_MULT;
 301        int dac = (val * sr_dac_mult_table[sr]) / SR_MULT;
 302        if (src & TLV320AIC23_CLKIN_HALF) {
 303                adc >>= 1;
 304                dac >>= 1;
 305        }
 306        *sample_rate_adc = adc;
 307        *sample_rate_dac = dac;
 308}
 309#endif
 310
 311static int set_sample_rate_control(struct snd_soc_component *component, int mclk,
 312                u32 sample_rate_adc, u32 sample_rate_dac)
 313{
 314        /* Search for the right sample rate */
 315        int data = find_rate(mclk, sample_rate_adc, sample_rate_dac);
 316        if (data < 0) {
 317                printk(KERN_ERR "%s:Invalid rate %u,%u requested\n",
 318                                __func__, sample_rate_adc, sample_rate_dac);
 319                return -EINVAL;
 320        }
 321        snd_soc_component_write(component, TLV320AIC23_SRATE, data);
 322#ifdef DEBUG
 323        {
 324                u32 adc, dac;
 325                get_current_sample_rates(component, mclk, &adc, &dac);
 326                printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n",
 327                        adc, dac, data);
 328        }
 329#endif
 330        return 0;
 331}
 332
 333static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,
 334                                 struct snd_pcm_hw_params *params,
 335                                 struct snd_soc_dai *dai)
 336{
 337        struct snd_soc_component *component = dai->component;
 338        u16 iface_reg;
 339        int ret;
 340        struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
 341        u32 sample_rate_adc = aic23->requested_adc;
 342        u32 sample_rate_dac = aic23->requested_dac;
 343        u32 sample_rate = params_rate(params);
 344
 345        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 346                aic23->requested_dac = sample_rate_dac = sample_rate;
 347                if (!sample_rate_adc)
 348                        sample_rate_adc = sample_rate;
 349        } else {
 350                aic23->requested_adc = sample_rate_adc = sample_rate;
 351                if (!sample_rate_dac)
 352                        sample_rate_dac = sample_rate;
 353        }
 354        ret = set_sample_rate_control(component, aic23->mclk, sample_rate_adc,
 355                        sample_rate_dac);
 356        if (ret < 0)
 357                return ret;
 358
 359        iface_reg = snd_soc_component_read(component, TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);
 360
 361        switch (params_width(params)) {
 362        case 16:
 363                break;
 364        case 20:
 365                iface_reg |= (0x01 << 2);
 366                break;
 367        case 24:
 368                iface_reg |= (0x02 << 2);
 369                break;
 370        case 32:
 371                iface_reg |= (0x03 << 2);
 372                break;
 373        }
 374        snd_soc_component_write(component, TLV320AIC23_DIGT_FMT, iface_reg);
 375
 376        return 0;
 377}
 378
 379static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream,
 380                                   struct snd_soc_dai *dai)
 381{
 382        struct snd_soc_component *component = dai->component;
 383
 384        /* set active */
 385        snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0001);
 386
 387        return 0;
 388}
 389
 390static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,
 391                                 struct snd_soc_dai *dai)
 392{
 393        struct snd_soc_component *component = dai->component;
 394        struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
 395
 396        /* deactivate */
 397        if (!snd_soc_component_active(component)) {
 398                udelay(50);
 399                snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0);
 400        }
 401        if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 402                aic23->requested_dac = 0;
 403        else
 404                aic23->requested_adc = 0;
 405}
 406
 407static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute, int direction)
 408{
 409        struct snd_soc_component *component = dai->component;
 410        u16 reg;
 411
 412        reg = snd_soc_component_read(component, TLV320AIC23_DIGT);
 413        if (mute)
 414                reg |= TLV320AIC23_DACM_MUTE;
 415
 416        else
 417                reg &= ~TLV320AIC23_DACM_MUTE;
 418
 419        snd_soc_component_write(component, TLV320AIC23_DIGT, reg);
 420
 421        return 0;
 422}
 423
 424static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,
 425                                   unsigned int fmt)
 426{
 427        struct snd_soc_component *component = codec_dai->component;
 428        u16 iface_reg;
 429
 430        iface_reg = snd_soc_component_read(component, TLV320AIC23_DIGT_FMT) & (~0x03);
 431
 432        /* set master/slave audio interface */
 433        switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 434        case SND_SOC_DAIFMT_CBM_CFM:
 435                iface_reg |= TLV320AIC23_MS_MASTER;
 436                break;
 437        case SND_SOC_DAIFMT_CBS_CFS:
 438                iface_reg &= ~TLV320AIC23_MS_MASTER;
 439                break;
 440        default:
 441                return -EINVAL;
 442
 443        }
 444
 445        /* interface format */
 446        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 447        case SND_SOC_DAIFMT_I2S:
 448                iface_reg |= TLV320AIC23_FOR_I2S;
 449                break;
 450        case SND_SOC_DAIFMT_DSP_A:
 451                iface_reg |= TLV320AIC23_LRP_ON;
 452                fallthrough;
 453        case SND_SOC_DAIFMT_DSP_B:
 454                iface_reg |= TLV320AIC23_FOR_DSP;
 455                break;
 456        case SND_SOC_DAIFMT_RIGHT_J:
 457                break;
 458        case SND_SOC_DAIFMT_LEFT_J:
 459                iface_reg |= TLV320AIC23_FOR_LJUST;
 460                break;
 461        default:
 462                return -EINVAL;
 463
 464        }
 465
 466        snd_soc_component_write(component, TLV320AIC23_DIGT_FMT, iface_reg);
 467
 468        return 0;
 469}
 470
 471static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 472                                      int clk_id, unsigned int freq, int dir)
 473{
 474        struct aic23 *aic23 = snd_soc_dai_get_drvdata(codec_dai);
 475        aic23->mclk = freq;
 476        return 0;
 477}
 478
 479static int tlv320aic23_set_bias_level(struct snd_soc_component *component,
 480                                      enum snd_soc_bias_level level)
 481{
 482        u16 reg = snd_soc_component_read(component, TLV320AIC23_PWR) & 0x17f;
 483
 484        switch (level) {
 485        case SND_SOC_BIAS_ON:
 486                /* vref/mid, osc on, dac unmute */
 487                reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \
 488                        TLV320AIC23_DAC_OFF);
 489                snd_soc_component_write(component, TLV320AIC23_PWR, reg);
 490                break;
 491        case SND_SOC_BIAS_PREPARE:
 492                break;
 493        case SND_SOC_BIAS_STANDBY:
 494                /* everything off except vref/vmid, */
 495                snd_soc_component_write(component, TLV320AIC23_PWR,
 496                              reg | TLV320AIC23_CLK_OFF);
 497                break;
 498        case SND_SOC_BIAS_OFF:
 499                /* everything off, dac mute, inactive */
 500                snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0);
 501                snd_soc_component_write(component, TLV320AIC23_PWR, 0x1ff);
 502                break;
 503        }
 504        return 0;
 505}
 506
 507#define AIC23_RATES     SNDRV_PCM_RATE_8000_96000
 508#define AIC23_FORMATS   (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
 509                         SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
 510
 511static const struct snd_soc_dai_ops tlv320aic23_dai_ops = {
 512        .prepare        = tlv320aic23_pcm_prepare,
 513        .hw_params      = tlv320aic23_hw_params,
 514        .shutdown       = tlv320aic23_shutdown,
 515        .mute_stream    = tlv320aic23_mute,
 516        .set_fmt        = tlv320aic23_set_dai_fmt,
 517        .set_sysclk     = tlv320aic23_set_dai_sysclk,
 518        .no_capture_mute = 1,
 519};
 520
 521static struct snd_soc_dai_driver tlv320aic23_dai = {
 522        .name = "tlv320aic23-hifi",
 523        .playback = {
 524                     .stream_name = "Playback",
 525                     .channels_min = 2,
 526                     .channels_max = 2,
 527                     .rates = AIC23_RATES,
 528                     .formats = AIC23_FORMATS,},
 529        .capture = {
 530                    .stream_name = "Capture",
 531                    .channels_min = 2,
 532                    .channels_max = 2,
 533                    .rates = AIC23_RATES,
 534                    .formats = AIC23_FORMATS,},
 535        .ops = &tlv320aic23_dai_ops,
 536};
 537
 538static int tlv320aic23_resume(struct snd_soc_component *component)
 539{
 540        struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
 541        regcache_mark_dirty(aic23->regmap);
 542        regcache_sync(aic23->regmap);
 543
 544        return 0;
 545}
 546
 547static int tlv320aic23_component_probe(struct snd_soc_component *component)
 548{
 549        /* Reset codec */
 550        snd_soc_component_write(component, TLV320AIC23_RESET, 0);
 551
 552        snd_soc_component_write(component, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
 553
 554        /* Unmute input */
 555        snd_soc_component_update_bits(component, TLV320AIC23_LINVOL,
 556                            TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
 557
 558        snd_soc_component_update_bits(component, TLV320AIC23_RINVOL,
 559                            TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
 560
 561        snd_soc_component_update_bits(component, TLV320AIC23_ANLG,
 562                            TLV320AIC23_BYPASS_ON | TLV320AIC23_MICM_MUTED,
 563                            0);
 564
 565        /* Default output volume */
 566        snd_soc_component_write(component, TLV320AIC23_LCHNVOL,
 567                      TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
 568        snd_soc_component_write(component, TLV320AIC23_RCHNVOL,
 569                      TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
 570
 571        snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x1);
 572
 573        return 0;
 574}
 575
 576static const struct snd_soc_component_driver soc_component_dev_tlv320aic23 = {
 577        .probe                  = tlv320aic23_component_probe,
 578        .resume                 = tlv320aic23_resume,
 579        .set_bias_level         = tlv320aic23_set_bias_level,
 580        .controls               = tlv320aic23_snd_controls,
 581        .num_controls           = ARRAY_SIZE(tlv320aic23_snd_controls),
 582        .dapm_widgets           = tlv320aic23_dapm_widgets,
 583        .num_dapm_widgets       = ARRAY_SIZE(tlv320aic23_dapm_widgets),
 584        .dapm_routes            = tlv320aic23_intercon,
 585        .num_dapm_routes        = ARRAY_SIZE(tlv320aic23_intercon),
 586        .suspend_bias_off       = 1,
 587        .idle_bias_on           = 1,
 588        .use_pmdown_time        = 1,
 589        .endianness             = 1,
 590        .non_legacy_dai_naming  = 1,
 591};
 592
 593int tlv320aic23_probe(struct device *dev, struct regmap *regmap)
 594{
 595        struct aic23 *aic23;
 596
 597        if (IS_ERR(regmap))
 598                return PTR_ERR(regmap);
 599
 600        aic23 = devm_kzalloc(dev, sizeof(struct aic23), GFP_KERNEL);
 601        if (aic23 == NULL)
 602                return -ENOMEM;
 603
 604        aic23->regmap = regmap;
 605
 606        dev_set_drvdata(dev, aic23);
 607
 608        return devm_snd_soc_register_component(dev,
 609                                      &soc_component_dev_tlv320aic23,
 610                                      &tlv320aic23_dai, 1);
 611}
 612EXPORT_SYMBOL(tlv320aic23_probe);
 613
 614MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
 615MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
 616MODULE_LICENSE("GPL");
 617
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