sound/soc/codecs/ak4641.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * ak4641.c  --  AK4641 ALSA Soc Audio driver
   4  *
   5  * Copyright (C) 2008 Harald Welte <laforge@gnufiish.org>
   6  * Copyright (C) 2011 Dmitry Artamonow <mad_soft@inbox.ru>
   7  *
   8  * Based on ak4535.c by Richard Purdie
   9  */
  10
  11 #include <linux/module.h>
  12 #include <linux/init.h>
  13 #include <linux/delay.h>
  14 #include <linux/gpio.h>
  15 #include <linux/pm.h>
  16 #include <linux/i2c.h>
  17 #include <linux/regmap.h>
  18 #include <linux/slab.h>
  19 #include <sound/core.h>
  20 #include <sound/pcm.h>
  21 #include <sound/pcm_params.h>
  22 #include <sound/soc.h>
  23 #include <sound/initval.h>
  24 #include <sound/tlv.h>
  25 #include <sound/ak4641.h>
  26
  27 /* AK4641 register space */
  28 #define AK4641_PM1              0x00
  29 #define AK4641_PM2              0x01
  30 #define AK4641_SIG1             0x02
  31 #define AK4641_SIG2             0x03
  32 #define AK4641_MODE1            0x04
  33 #define AK4641_MODE2            0x05
  34 #define AK4641_DAC              0x06
  35 #define AK4641_MIC              0x07
  36 #define AK4641_TIMER            0x08
  37 #define AK4641_ALC1             0x09
  38 #define AK4641_ALC2             0x0a
  39 #define AK4641_PGA              0x0b
  40 #define AK4641_LATT             0x0c
  41 #define AK4641_RATT             0x0d
  42 #define AK4641_VOL              0x0e
  43 #define AK4641_STATUS           0x0f
  44 #define AK4641_EQLO             0x10
  45 #define AK4641_EQMID            0x11
  46 #define AK4641_EQHI             0x12
  47 #define AK4641_BTIF             0x13
  48
  49 /* codec private data */
  50 struct ak4641_priv {
  51         struct regmap *regmap;
  52         unsigned int sysclk;
  53         int deemph;
  54         int playback_fs;
  55 };
  56
  57 /*
  58  * ak4641 register cache
  59  */
  60 static const struct reg_default ak4641_reg_defaults[] = {
  61         {  0, 0x00 }, {  1, 0x80 }, {  2, 0x00 }, {  3, 0x80 },
  62         {  4, 0x02 }, {  5, 0x00 }, {  6, 0x11 }, {  7, 0x05 },
  63         {  8, 0x00 }, {  9, 0x00 }, { 10, 0x36 }, { 11, 0x10 },
  64         { 12, 0x00 }, { 13, 0x00 }, { 14, 0x57 }, { 15, 0x00 },
  65         { 16, 0x88 }, { 17, 0x88 }, { 18, 0x08 }, { 19, 0x08 }
  66 };
  67
  68 static const int deemph_settings[] = {44100, 0, 48000, 32000};
  69
  70 static int ak4641_set_deemph(struct snd_soc_component *component)
  71 {
  72         struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(component);
  73         int i, best = 0;
  74
  75         for (i = 0 ; i < ARRAY_SIZE(deemph_settings); i++) {
  76                 /* if deemphasis is on, select the nearest available rate */
  77                 if (ak4641->deemph && deemph_settings[i] != 0 &&
  78                     abs(deemph_settings[i] - ak4641->playback_fs) <
  79                     abs(deemph_settings[best] - ak4641->playback_fs))
  80                         best = i;
  81
  82                 if (!ak4641->deemph && deemph_settings[i] == 0)
  83                         best = i;
  84         }
  85
  86         dev_dbg(component->dev, "Set deemphasis %d\n", best);
  87
  88         return snd_soc_component_update_bits(component, AK4641_DAC, 0x3, best);
  89 }
  90
  91 static int ak4641_put_deemph(struct snd_kcontrol *kcontrol,
  92                                 struct snd_ctl_elem_value *ucontrol)
  93 {
  94         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
  95         struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(component);
  96         int deemph = ucontrol->value.integer.value[0];
  97
  98         if (deemph > 1)
  99                 return -EINVAL;
 100
 101         ak4641->deemph = deemph;
 102
 103         return ak4641_set_deemph(component);
 104 }
 105
 106 static int ak4641_get_deemph(struct snd_kcontrol *kcontrol,
 107                                 struct snd_ctl_elem_value *ucontrol)
 108 {
 109         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 110         struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(component);
 111
 112         ucontrol->value.integer.value[0] = ak4641->deemph;
 113         return 0;
 114 };
 115
 116 static const char *ak4641_mono_out[] = {"(L + R)/2", "Hi-Z"};
 117 static const char *ak4641_hp_out[] = {"Stereo", "Mono"};
 118 static const char *ak4641_mic_select[] = {"Internal", "External"};
 119 static const char *ak4641_mic_or_dac[] = {"Microphone", "Voice DAC"};
 120
 121
 122 static const DECLARE_TLV_DB_SCALE(mono_gain_tlv, -1700, 2300, 0);
 123 static const DECLARE_TLV_DB_SCALE(mic_boost_tlv, 0, 2000, 0);
 124 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1050, 150, 0);
 125 static const DECLARE_TLV_DB_SCALE(master_tlv, -12750, 50, 0);
 126 static const DECLARE_TLV_DB_SCALE(mic_stereo_sidetone_tlv, -2700, 300, 0);
 127 static const DECLARE_TLV_DB_SCALE(mic_mono_sidetone_tlv, -400, 400, 0);
 128 static const DECLARE_TLV_DB_SCALE(capture_tlv, -800, 50, 0);
 129 static const DECLARE_TLV_DB_SCALE(alc_tlv, -800, 50, 0);
 130 static const DECLARE_TLV_DB_SCALE(aux_in_tlv, -2100, 300, 0);
 131
 132
 133 static SOC_ENUM_SINGLE_DECL(ak4641_mono_out_enum,
 134                             AK4641_SIG1, 6, ak4641_mono_out);
 135 static SOC_ENUM_SINGLE_DECL(ak4641_hp_out_enum,
 136                             AK4641_MODE2, 2, ak4641_hp_out);
 137 static SOC_ENUM_SINGLE_DECL(ak4641_mic_select_enum,
 138                             AK4641_MIC, 1, ak4641_mic_select);
 139 static SOC_ENUM_SINGLE_DECL(ak4641_mic_or_dac_enum,
 140                             AK4641_BTIF, 4, ak4641_mic_or_dac);
 141
 142 static const struct snd_kcontrol_new ak4641_snd_controls[] = {
 143         SOC_ENUM("Mono 1 Output", ak4641_mono_out_enum),
 144         SOC_SINGLE_TLV("Mono 1 Gain Volume", AK4641_SIG1, 7, 1, 1,
 145                                                         mono_gain_tlv),
 146         SOC_ENUM("Headphone Output", ak4641_hp_out_enum),
 147         SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0,
 148                                         ak4641_get_deemph, ak4641_put_deemph),
 149
 150         SOC_SINGLE_TLV("Mic Boost Volume", AK4641_MIC, 0, 1, 0, mic_boost_tlv),
 151
 152         SOC_SINGLE("ALC Operation Time", AK4641_TIMER, 0, 3, 0),
 153         SOC_SINGLE("ALC Recovery Time", AK4641_TIMER, 2, 3, 0),
 154         SOC_SINGLE("ALC ZC Time", AK4641_TIMER, 4, 3, 0),
 155
 156         SOC_SINGLE("ALC 1 Switch", AK4641_ALC1, 5, 1, 0),
 157
 158         SOC_SINGLE_TLV("ALC Volume", AK4641_ALC2, 0, 71, 0, alc_tlv),
 159         SOC_SINGLE("Left Out Enable Switch", AK4641_SIG2, 1, 1, 0),
 160         SOC_SINGLE("Right Out Enable Switch", AK4641_SIG2, 0, 1, 0),
 161
 162         SOC_SINGLE_TLV("Capture Volume", AK4641_PGA, 0, 71, 0, capture_tlv),
 163
 164         SOC_DOUBLE_R_TLV("Master Playback Volume", AK4641_LATT,
 165                                 AK4641_RATT, 0, 255, 1, master_tlv),
 166
 167         SOC_SINGLE_TLV("AUX In Volume", AK4641_VOL, 0, 15, 0, aux_in_tlv),
 168
 169         SOC_SINGLE("Equalizer Switch", AK4641_DAC, 2, 1, 0),
 170         SOC_SINGLE_TLV("EQ1 100 Hz Volume", AK4641_EQLO, 0, 15, 1, eq_tlv),
 171         SOC_SINGLE_TLV("EQ2 250 Hz Volume", AK4641_EQLO, 4, 15, 1, eq_tlv),
 172         SOC_SINGLE_TLV("EQ3 1 kHz Volume", AK4641_EQMID, 0, 15, 1, eq_tlv),
 173         SOC_SINGLE_TLV("EQ4 3.5 kHz Volume", AK4641_EQMID, 4, 15, 1, eq_tlv),
 174         SOC_SINGLE_TLV("EQ5 10 kHz Volume", AK4641_EQHI, 0, 15, 1, eq_tlv),
 175 };
 176
 177 /* Mono 1 Mixer */
 178 static const struct snd_kcontrol_new ak4641_mono1_mixer_controls[] = {
 179         SOC_DAPM_SINGLE_TLV("Mic Mono Sidetone Volume", AK4641_VOL, 7, 1, 0,
 180                                                 mic_mono_sidetone_tlv),
 181         SOC_DAPM_SINGLE("Mic Mono Sidetone Switch", AK4641_SIG1, 4, 1, 0),
 182         SOC_DAPM_SINGLE("Mono Playback Switch", AK4641_SIG1, 5, 1, 0),
 183 };
 184
 185 /* Stereo Mixer */
 186 static const struct snd_kcontrol_new ak4641_stereo_mixer_controls[] = {
 187         SOC_DAPM_SINGLE_TLV("Mic Sidetone Volume", AK4641_VOL, 4, 7, 0,
 188                                                 mic_stereo_sidetone_tlv),
 189         SOC_DAPM_SINGLE("Mic Sidetone Switch", AK4641_SIG2, 4, 1, 0),
 190         SOC_DAPM_SINGLE("Playback Switch", AK4641_SIG2, 7, 1, 0),
 191         SOC_DAPM_SINGLE("Aux Bypass Switch", AK4641_SIG2, 5, 1, 0),
 192 };
 193
 194 /* Input Mixer */
 195 static const struct snd_kcontrol_new ak4641_input_mixer_controls[] = {
 196         SOC_DAPM_SINGLE("Mic Capture Switch", AK4641_MIC, 2, 1, 0),
 197         SOC_DAPM_SINGLE("Aux Capture Switch", AK4641_MIC, 5, 1, 0),
 198 };
 199
 200 /* Mic mux */
 201 static const struct snd_kcontrol_new ak4641_mic_mux_control =
 202         SOC_DAPM_ENUM("Mic Select", ak4641_mic_select_enum);
 203
 204 /* Input mux */
 205 static const struct snd_kcontrol_new ak4641_input_mux_control =
 206         SOC_DAPM_ENUM("Input Select", ak4641_mic_or_dac_enum);
 207
 208 /* mono 2 switch */
 209 static const struct snd_kcontrol_new ak4641_mono2_control =
 210         SOC_DAPM_SINGLE("Switch", AK4641_SIG1, 0, 1, 0);
 211
 212 /* ak4641 dapm widgets */
 213 static const struct snd_soc_dapm_widget ak4641_dapm_widgets[] = {
 214         SND_SOC_DAPM_MIXER("Stereo Mixer", SND_SOC_NOPM, 0, 0,
 215                 &ak4641_stereo_mixer_controls[0],
 216                 ARRAY_SIZE(ak4641_stereo_mixer_controls)),
 217         SND_SOC_DAPM_MIXER("Mono1 Mixer", SND_SOC_NOPM, 0, 0,
 218                 &ak4641_mono1_mixer_controls[0],
 219                 ARRAY_SIZE(ak4641_mono1_mixer_controls)),
 220         SND_SOC_DAPM_MIXER("Input Mixer", SND_SOC_NOPM, 0, 0,
 221                 &ak4641_input_mixer_controls[0],
 222                 ARRAY_SIZE(ak4641_input_mixer_controls)),
 223         SND_SOC_DAPM_MUX("Mic Mux", SND_SOC_NOPM, 0, 0,
 224                 &ak4641_mic_mux_control),
 225         SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0,
 226                 &ak4641_input_mux_control),
 227         SND_SOC_DAPM_SWITCH("Mono 2 Enable", SND_SOC_NOPM, 0, 0,
 228                 &ak4641_mono2_control),
 229
 230         SND_SOC_DAPM_OUTPUT("LOUT"),
 231         SND_SOC_DAPM_OUTPUT("ROUT"),
 232         SND_SOC_DAPM_OUTPUT("MOUT1"),
 233         SND_SOC_DAPM_OUTPUT("MOUT2"),
 234         SND_SOC_DAPM_OUTPUT("MICOUT"),
 235
 236         SND_SOC_DAPM_ADC("ADC", "HiFi Capture", AK4641_PM1, 0, 0),
 237         SND_SOC_DAPM_PGA("Mic", AK4641_PM1, 1, 0, NULL, 0),
 238         SND_SOC_DAPM_PGA("AUX In", AK4641_PM1, 2, 0, NULL, 0),
 239         SND_SOC_DAPM_PGA("Mono Out", AK4641_PM1, 3, 0, NULL, 0),
 240         SND_SOC_DAPM_PGA("Line Out", AK4641_PM1, 4, 0, NULL, 0),
 241
 242         SND_SOC_DAPM_DAC("DAC", "HiFi Playback", AK4641_PM2, 0, 0),
 243         SND_SOC_DAPM_PGA("Mono Out 2", AK4641_PM2, 3, 0, NULL, 0),
 244
 245         SND_SOC_DAPM_ADC("Voice ADC", "Voice Capture", AK4641_BTIF, 0, 0),
 246         SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", AK4641_BTIF, 1, 0),
 247
 248         SND_SOC_DAPM_MICBIAS("Mic Int Bias", AK4641_MIC, 3, 0),
 249         SND_SOC_DAPM_MICBIAS("Mic Ext Bias", AK4641_MIC, 4, 0),
 250
 251         SND_SOC_DAPM_INPUT("MICIN"),
 252         SND_SOC_DAPM_INPUT("MICEXT"),
 253         SND_SOC_DAPM_INPUT("AUX"),
 254         SND_SOC_DAPM_INPUT("AIN"),
 255 };
 256
 257 static const struct snd_soc_dapm_route ak4641_audio_map[] = {
 258         /* Stereo Mixer */
 259         {"Stereo Mixer", "Playback Switch", "DAC"},
 260         {"Stereo Mixer", "Mic Sidetone Switch", "Input Mux"},
 261         {"Stereo Mixer", "Aux Bypass Switch", "AUX In"},
 262
 263         /* Mono 1 Mixer */
 264         {"Mono1 Mixer", "Mic Mono Sidetone Switch", "Input Mux"},
 265         {"Mono1 Mixer", "Mono Playback Switch", "DAC"},
 266
 267         /* Mic */
 268         {"Mic", NULL, "AIN"},
 269         {"Mic Mux", "Internal", "Mic Int Bias"},
 270         {"Mic Mux", "External", "Mic Ext Bias"},
 271         {"Mic Int Bias", NULL, "MICIN"},
 272         {"Mic Ext Bias", NULL, "MICEXT"},
 273         {"MICOUT", NULL, "Mic Mux"},
 274
 275         /* Input Mux */
 276         {"Input Mux", "Microphone", "Mic"},
 277         {"Input Mux", "Voice DAC", "Voice DAC"},
 278
 279         /* Line Out */
 280         {"LOUT", NULL, "Line Out"},
 281         {"ROUT", NULL, "Line Out"},
 282         {"Line Out", NULL, "Stereo Mixer"},
 283
 284         /* Mono 1 Out */
 285         {"MOUT1", NULL, "Mono Out"},
 286         {"Mono Out", NULL, "Mono1 Mixer"},
 287
 288         /* Mono 2 Out */
 289         {"MOUT2", NULL, "Mono 2 Enable"},
 290         {"Mono 2 Enable", "Switch", "Mono Out 2"},
 291         {"Mono Out 2", NULL, "Stereo Mixer"},
 292
 293         {"Voice ADC", NULL, "Mono 2 Enable"},
 294
 295         /* Aux In */
 296         {"AUX In", NULL, "AUX"},
 297
 298         /* ADC */
 299         {"ADC", NULL, "Input Mixer"},
 300         {"Input Mixer", "Mic Capture Switch", "Mic"},
 301         {"Input Mixer", "Aux Capture Switch", "AUX In"},
 302 };
 303
 304 static int ak4641_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 305         int clk_id, unsigned int freq, int dir)
 306 {
 307         struct snd_soc_component *component = codec_dai->component;
 308         struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(component);
 309
 310         ak4641->sysclk = freq;
 311         return 0;
 312 }
 313
 314 static int ak4641_i2s_hw_params(struct snd_pcm_substream *substream,
 315                                  struct snd_pcm_hw_params *params,
 316                                  struct snd_soc_dai *dai)
 317 {
 318         struct snd_soc_component *component = dai->component;
 319         struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(component);
 320         int rate = params_rate(params), fs = 256;
 321         u8 mode2;
 322
 323         if (rate)
 324                 fs = ak4641->sysclk / rate;
 325         else
 326                 return -EINVAL;
 327
 328         /* set fs */
 329         switch (fs) {
 330         case 1024:
 331                 mode2 = (0x2 << 5);
 332                 break;
 333         case 512:
 334                 mode2 = (0x1 << 5);
 335                 break;
 336         case 256:
 337                 mode2 = (0x0 << 5);
 338                 break;
 339         default:
 340                 dev_err(component->dev, "Error: unsupported fs=%d\n", fs);
 341                 return -EINVAL;
 342         }
 343
 344         snd_soc_component_update_bits(component, AK4641_MODE2, (0x3 << 5), mode2);
 345
 346         /* Update de-emphasis filter for the new rate */
 347         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 348                 ak4641->playback_fs = rate;
 349                 ak4641_set_deemph(component);
 350         }
 351
 352         return 0;
 353 }
 354
 355 static int ak4641_pcm_set_dai_fmt(struct snd_soc_dai *codec_dai,
 356                                   unsigned int fmt)
 357 {
 358         struct snd_soc_component *component = codec_dai->component;
 359         u8 btif;
 360         int ret;
 361
 362         /* interface format */
 363         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 364         case SND_SOC_DAIFMT_I2S:
 365                 btif = (0x3 << 5);
 366                 break;
 367         case SND_SOC_DAIFMT_LEFT_J:
 368                 btif = (0x2 << 5);
 369                 break;
 370         case SND_SOC_DAIFMT_DSP_A:      /* MSB after FRM */
 371                 btif = (0x0 << 5);
 372                 break;
 373         case SND_SOC_DAIFMT_DSP_B:      /* MSB during FRM */
 374                 btif = (0x1 << 5);
 375                 break;
 376         default:
 377                 return -EINVAL;
 378         }
 379
 380         ret = snd_soc_component_update_bits(component, AK4641_BTIF, (0x3 << 5), btif);
 381         if (ret < 0)
 382                 return ret;
 383
 384         return 0;
 385 }
 386
 387 static int ak4641_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai,
 388                 unsigned int fmt)
 389 {
 390         struct snd_soc_component *component = codec_dai->component;
 391         u8 mode1 = 0;
 392
 393         /* interface format */
 394         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 395         case SND_SOC_DAIFMT_I2S:
 396                 mode1 = 0x02;
 397                 break;
 398         case SND_SOC_DAIFMT_LEFT_J:
 399                 mode1 = 0x01;
 400                 break;
 401         default:
 402                 return -EINVAL;
 403         }
 404
 405         return snd_soc_component_write(component, AK4641_MODE1, mode1);
 406 }
 407
 408 static int ak4641_mute(struct snd_soc_dai *dai, int mute)
 409 {
 410         struct snd_soc_component *component = dai->component;
 411
 412         return snd_soc_component_update_bits(component, AK4641_DAC, 0x20, mute ? 0x20 : 0);
 413 }
 414
 415 static int ak4641_set_bias_level(struct snd_soc_component *component,
 416         enum snd_soc_bias_level level)
 417 {
 418         struct ak4641_priv *ak4641 = snd_soc_component_get_drvdata(component);
 419         struct ak4641_platform_data *pdata = component->dev->platform_data;
 420         int ret;
 421
 422         switch (level) {
 423         case SND_SOC_BIAS_ON:
 424                 /* unmute */
 425                 snd_soc_component_update_bits(component, AK4641_DAC, 0x20, 0);
 426                 break;
 427         case SND_SOC_BIAS_PREPARE:
 428                 /* mute */
 429                 snd_soc_component_update_bits(component, AK4641_DAC, 0x20, 0x20);
 430                 break;
 431         case SND_SOC_BIAS_STANDBY:
 432                 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
 433                         if (pdata && gpio_is_valid(pdata->gpio_power))
 434                                 gpio_set_value(pdata->gpio_power, 1);
 435                         mdelay(1);
 436                         if (pdata && gpio_is_valid(pdata->gpio_npdn))
 437                                 gpio_set_value(pdata->gpio_npdn, 1);
 438                         mdelay(1);
 439
 440                         ret = regcache_sync(ak4641->regmap);
 441                         if (ret) {
 442                                 dev_err(component->dev,
 443                                         "Failed to sync cache: %d\n", ret);
 444                                 return ret;
 445                         }
 446                 }
 447                 snd_soc_component_update_bits(component, AK4641_PM1, 0x80, 0x80);
 448                 snd_soc_component_update_bits(component, AK4641_PM2, 0x80, 0);
 449                 break;
 450         case SND_SOC_BIAS_OFF:
 451                 snd_soc_component_update_bits(component, AK4641_PM1, 0x80, 0);
 452                 if (pdata && gpio_is_valid(pdata->gpio_npdn))
 453                         gpio_set_value(pdata->gpio_npdn, 0);
 454                 if (pdata && gpio_is_valid(pdata->gpio_power))
 455                         gpio_set_value(pdata->gpio_power, 0);
 456                 regcache_mark_dirty(ak4641->regmap);
 457                 break;
 458         }
 459         return 0;
 460 }
 461
 462 #define AK4641_RATES    (SNDRV_PCM_RATE_8000_48000)
 463 #define AK4641_RATES_BT (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
 464                          SNDRV_PCM_RATE_16000)
 465 #define AK4641_FORMATS  (SNDRV_PCM_FMTBIT_S16_LE)
 466
 467 static const struct snd_soc_dai_ops ak4641_i2s_dai_ops = {
 468         .hw_params    = ak4641_i2s_hw_params,
 469         .set_fmt      = ak4641_i2s_set_dai_fmt,
 470         .digital_mute = ak4641_mute,
 471         .set_sysclk   = ak4641_set_dai_sysclk,
 472 };
 473
 474 static const struct snd_soc_dai_ops ak4641_pcm_dai_ops = {
 475         .hw_params    = NULL, /* rates are controlled by BT chip */
 476         .set_fmt      = ak4641_pcm_set_dai_fmt,
 477         .digital_mute = ak4641_mute,
 478         .set_sysclk   = ak4641_set_dai_sysclk,
 479 };
 480
 481 static struct snd_soc_dai_driver ak4641_dai[] = {
 482 {
 483         .name = "ak4641-hifi",
 484         .id = 1,
 485         .playback = {
 486                 .stream_name = "HiFi Playback",
 487                 .channels_min = 1,
 488                 .channels_max = 2,
 489                 .rates = AK4641_RATES,
 490                 .formats = AK4641_FORMATS,
 491         },
 492         .capture = {
 493                 .stream_name = "HiFi Capture",
 494                 .channels_min = 1,
 495                 .channels_max = 2,
 496                 .rates = AK4641_RATES,
 497                 .formats = AK4641_FORMATS,
 498         },
 499         .ops = &ak4641_i2s_dai_ops,
 500         .symmetric_rates = 1,
 501 },
 502 {
 503         .name = "ak4641-voice",
 504         .id = 1,
 505         .playback = {
 506                 .stream_name = "Voice Playback",
 507                 .channels_min = 1,
 508                 .channels_max = 1,
 509                 .rates = AK4641_RATES_BT,
 510                 .formats = AK4641_FORMATS,
 511         },
 512         .capture = {
 513                 .stream_name = "Voice Capture",
 514                 .channels_min = 1,
 515                 .channels_max = 1,
 516                 .rates = AK4641_RATES_BT,
 517                 .formats = AK4641_FORMATS,
 518         },
 519         .ops = &ak4641_pcm_dai_ops,
 520         .symmetric_rates = 1,
 521 },
 522 };
 523
 524 static const struct snd_soc_component_driver soc_component_dev_ak4641 = {
 525         .controls               = ak4641_snd_controls,
 526         .num_controls           = ARRAY_SIZE(ak4641_snd_controls),
 527         .dapm_widgets           = ak4641_dapm_widgets,
 528         .num_dapm_widgets       = ARRAY_SIZE(ak4641_dapm_widgets),
 529         .dapm_routes            = ak4641_audio_map,
 530         .num_dapm_routes        = ARRAY_SIZE(ak4641_audio_map),
 531         .set_bias_level         = ak4641_set_bias_level,
 532         .suspend_bias_off       = 1,
 533         .idle_bias_on           = 1,
 534         .use_pmdown_time        = 1,
 535         .endianness             = 1,
 536         .non_legacy_dai_naming  = 1,
 537 };
 538
 539 static const struct regmap_config ak4641_regmap = {
 540         .reg_bits = 8,
 541         .val_bits = 8,
 542
 543         .max_register = AK4641_BTIF,
 544         .reg_defaults = ak4641_reg_defaults,
 545         .num_reg_defaults = ARRAY_SIZE(ak4641_reg_defaults),
 546         .cache_type = REGCACHE_RBTREE,
 547 };
 548
 549 static int ak4641_i2c_probe(struct i2c_client *i2c,
 550                             const struct i2c_device_id *id)
 551 {
 552         struct ak4641_platform_data *pdata = i2c->dev.platform_data;
 553         struct ak4641_priv *ak4641;
 554         int ret;
 555
 556         ak4641 = devm_kzalloc(&i2c->dev, sizeof(struct ak4641_priv),
 557                               GFP_KERNEL);
 558         if (!ak4641)
 559                 return -ENOMEM;
 560
 561         ak4641->regmap = devm_regmap_init_i2c(i2c, &ak4641_regmap);
 562         if (IS_ERR(ak4641->regmap))
 563                 return PTR_ERR(ak4641->regmap);
 564
 565         if (pdata) {
 566                 if (gpio_is_valid(pdata->gpio_power)) {
 567                         ret = gpio_request_one(pdata->gpio_power,
 568                                         GPIOF_OUT_INIT_LOW, "ak4641 power");
 569                         if (ret)
 570                                 goto err_out;
 571                 }
 572                 if (gpio_is_valid(pdata->gpio_npdn)) {
 573                         ret = gpio_request_one(pdata->gpio_npdn,
 574                                         GPIOF_OUT_INIT_LOW, "ak4641 npdn");
 575                         if (ret)
 576                                 goto err_gpio;
 577
 578                         udelay(1); /* > 150 ns */
 579                         gpio_set_value(pdata->gpio_npdn, 1);
 580                 }
 581         }
 582
 583         i2c_set_clientdata(i2c, ak4641);
 584
 585         ret = devm_snd_soc_register_component(&i2c->dev,
 586                                 &soc_component_dev_ak4641,
 587                                 ak4641_dai, ARRAY_SIZE(ak4641_dai));
 588         if (ret != 0)
 589                 goto err_gpio2;
 590
 591         return 0;
 592
 593 err_gpio2:
 594         if (pdata) {
 595                 if (gpio_is_valid(pdata->gpio_power))
 596                         gpio_set_value(pdata->gpio_power, 0);
 597                 if (gpio_is_valid(pdata->gpio_npdn))
 598                         gpio_free(pdata->gpio_npdn);
 599         }
 600 err_gpio:
 601         if (pdata && gpio_is_valid(pdata->gpio_power))
 602                 gpio_free(pdata->gpio_power);
 603 err_out:
 604         return ret;
 605 }
 606
 607 static int ak4641_i2c_remove(struct i2c_client *i2c)
 608 {
 609         struct ak4641_platform_data *pdata = i2c->dev.platform_data;
 610
 611         if (pdata) {
 612                 if (gpio_is_valid(pdata->gpio_power)) {
 613                         gpio_set_value(pdata->gpio_power, 0);
 614                         gpio_free(pdata->gpio_power);
 615                 }
 616                 if (gpio_is_valid(pdata->gpio_npdn))
 617                         gpio_free(pdata->gpio_npdn);
 618         }
 619
 620         return 0;
 621 }
 622
 623 static const struct i2c_device_id ak4641_i2c_id[] = {
 624         { "ak4641", 0 },
 625         { }
 626 };
 627 MODULE_DEVICE_TABLE(i2c, ak4641_i2c_id);
 628
 629 static struct i2c_driver ak4641_i2c_driver = {
 630         .driver = {
 631                 .name = "ak4641",
 632         },
 633         .probe =    ak4641_i2c_probe,
 634         .remove =   ak4641_i2c_remove,
 635         .id_table = ak4641_i2c_id,
 636 };
 637
 638 module_i2c_driver(ak4641_i2c_driver);
 639
 640 MODULE_DESCRIPTION("SoC AK4641 driver");
 641 MODULE_AUTHOR("Harald Welte <laforge@gnufiish.org>");
 642 MODULE_LICENSE("GPL");