sound/soc/codecs/tlv320aic23.c

   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  */
  37 static 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
  50 const 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 };
  59 EXPORT_SYMBOL(tlv320aic23_regmap);
  60
  61 static const char *rec_src_text[] = { "Line", "Mic" };
  62 static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};
  63
  64 static SOC_ENUM_SINGLE_DECL(rec_src_enum,
  65                             TLV320AIC23_ANLG, 2, rec_src_text);
  66
  67 static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =
  68 SOC_DAPM_ENUM("Input Select", rec_src_enum);
  69
  70 static SOC_ENUM_SINGLE_DECL(tlv320aic23_deemph,
  71                             TLV320AIC23_DIGT, 1, deemph_text);
  72
  73 static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);
  74 static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);
  75 static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0);
  76
  77 static 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_read32(component, TLV320AIC23_ANLG) & (~0x1C0);
  95         snd_soc_component_write(component, TLV320AIC23_ANLG, reg | (val << 6));
  96
  97         return 0;
  98 }
  99
 100 static 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_read32(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
 114 static 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 */
 131 static 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
 137 static 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
 159 static 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 */
 184 struct 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  */
 204 static 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))
 209 static 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)
 220 static 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 };
 224 static 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
 229 static 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
 241 static 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
 294 static 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_read32(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
 311 static 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
 333 static 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_read32(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
 379 static 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
 390 static 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_is_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
 407 static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute)
 408 {
 409         struct snd_soc_component *component = dai->component;
 410         u16 reg;
 411
 412         reg = snd_soc_component_read32(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
 424 static 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_read32(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                 /* fall through */
 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
 471 static 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
 479 static int tlv320aic23_set_bias_level(struct snd_soc_component *component,
 480                                       enum snd_soc_bias_level level)
 481 {
 482         u16 reg = snd_soc_component_read32(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
 511 static 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         .digital_mute   = tlv320aic23_mute,
 516         .set_fmt        = tlv320aic23_set_dai_fmt,
 517         .set_sysclk     = tlv320aic23_set_dai_sysclk,
 518 };
 519
 520 static struct snd_soc_dai_driver tlv320aic23_dai = {
 521         .name = "tlv320aic23-hifi",
 522         .playback = {
 523                      .stream_name = "Playback",
 524                      .channels_min = 2,
 525                      .channels_max = 2,
 526                      .rates = AIC23_RATES,
 527                      .formats = AIC23_FORMATS,},
 528         .capture = {
 529                     .stream_name = "Capture",
 530                     .channels_min = 2,
 531                     .channels_max = 2,
 532                     .rates = AIC23_RATES,
 533                     .formats = AIC23_FORMATS,},
 534         .ops = &tlv320aic23_dai_ops,
 535 };
 536
 537 static int tlv320aic23_resume(struct snd_soc_component *component)
 538 {
 539         struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
 540         regcache_mark_dirty(aic23->regmap);
 541         regcache_sync(aic23->regmap);
 542
 543         return 0;
 544 }
 545
 546 static int tlv320aic23_component_probe(struct snd_soc_component *component)
 547 {
 548         /* Reset codec */
 549         snd_soc_component_write(component, TLV320AIC23_RESET, 0);
 550
 551         snd_soc_component_write(component, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
 552
 553         /* Unmute input */
 554         snd_soc_component_update_bits(component, TLV320AIC23_LINVOL,
 555                             TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
 556
 557         snd_soc_component_update_bits(component, TLV320AIC23_RINVOL,
 558                             TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
 559
 560         snd_soc_component_update_bits(component, TLV320AIC23_ANLG,
 561                             TLV320AIC23_BYPASS_ON | TLV320AIC23_MICM_MUTED,
 562                             0);
 563
 564         /* Default output volume */
 565         snd_soc_component_write(component, TLV320AIC23_LCHNVOL,
 566                       TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
 567         snd_soc_component_write(component, TLV320AIC23_RCHNVOL,
 568                       TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
 569
 570         snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x1);
 571
 572         return 0;
 573 }
 574
 575 static const struct snd_soc_component_driver soc_component_dev_tlv320aic23 = {
 576         .probe                  = tlv320aic23_component_probe,
 577         .resume                 = tlv320aic23_resume,
 578         .set_bias_level         = tlv320aic23_set_bias_level,
 579         .controls               = tlv320aic23_snd_controls,
 580         .num_controls           = ARRAY_SIZE(tlv320aic23_snd_controls),
 581         .dapm_widgets           = tlv320aic23_dapm_widgets,
 582         .num_dapm_widgets       = ARRAY_SIZE(tlv320aic23_dapm_widgets),
 583         .dapm_routes            = tlv320aic23_intercon,
 584         .num_dapm_routes        = ARRAY_SIZE(tlv320aic23_intercon),
 585         .suspend_bias_off       = 1,
 586         .idle_bias_on           = 1,
 587         .use_pmdown_time        = 1,
 588         .endianness             = 1,
 589         .non_legacy_dai_naming  = 1,
 590 };
 591
 592 int tlv320aic23_probe(struct device *dev, struct regmap *regmap)
 593 {
 594         struct aic23 *aic23;
 595
 596         if (IS_ERR(regmap))
 597                 return PTR_ERR(regmap);
 598
 599         aic23 = devm_kzalloc(dev, sizeof(struct aic23), GFP_KERNEL);
 600         if (aic23 == NULL)
 601                 return -ENOMEM;
 602
 603         aic23->regmap = regmap;
 604
 605         dev_set_drvdata(dev, aic23);
 606
 607         return devm_snd_soc_register_component(dev,
 608                                       &soc_component_dev_tlv320aic23,
 609                                       &tlv320aic23_dai, 1);
 610 }
 611 EXPORT_SYMBOL(tlv320aic23_probe);
 612
 613 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
 614 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
 615 MODULE_LICENSE("GPL");