sound/soc/codecs/da7210.c

   1 /*
   2  * DA7210 ALSA Soc codec driver
   3  *
   4  * Copyright (c) 2009 Dialog Semiconductor
   5  * Written by David Chen <Dajun.chen@diasemi.com>
   6  *
   7  * Copyright (C) 2009 Renesas Solutions Corp.
   8  * Cleanups by Kuninori Morimoto <morimoto.kuninori@renesas.com>
   9  *
  10  * Tested on SuperH Ecovec24 board with S16/S24 LE in 48KHz using I2S
  11  *
  12  * This program is free software; you can redistribute  it and/or modify it
  13  * under  the terms of  the GNU General  Public License as published by the
  14  * Free Software Foundation;  either version 2 of the  License, or (at your
  15  * option) any later version.
  16  */
  17
  18 #include <linux/delay.h>
  19 #include <linux/i2c.h>
  20 #include <linux/platform_device.h>
  21 #include <linux/slab.h>
  22 #include <sound/pcm.h>
  23 #include <sound/pcm_params.h>
  24 #include <sound/soc.h>
  25 #include <sound/initval.h>
  26 #include <sound/tlv.h>
  27
  28 /* DA7210 register space */
  29 #define DA7210_STATUS                   0x02
  30 #define DA7210_STARTUP1                 0x03
  31 #define DA7210_MIC_L                    0x07
  32 #define DA7210_MIC_R                    0x08
  33 #define DA7210_INMIX_L                  0x0D
  34 #define DA7210_INMIX_R                  0x0E
  35 #define DA7210_ADC_HPF                  0x0F
  36 #define DA7210_ADC                      0x10
  37 #define DA7210_DAC_HPF                  0x14
  38 #define DA7210_DAC_L                    0x15
  39 #define DA7210_DAC_R                    0x16
  40 #define DA7210_DAC_SEL                  0x17
  41 #define DA7210_OUTMIX_L                 0x1C
  42 #define DA7210_OUTMIX_R                 0x1D
  43 #define DA7210_HP_L_VOL                 0x21
  44 #define DA7210_HP_R_VOL                 0x22
  45 #define DA7210_HP_CFG                   0x23
  46 #define DA7210_DAI_SRC_SEL              0x25
  47 #define DA7210_DAI_CFG1                 0x26
  48 #define DA7210_DAI_CFG3                 0x28
  49 #define DA7210_PLL_DIV1                 0x29
  50 #define DA7210_PLL_DIV2                 0x2A
  51 #define DA7210_PLL_DIV3                 0x2B
  52 #define DA7210_PLL                      0x2C
  53 #define DA7210_A_HID_UNLOCK             0x8A
  54 #define DA7210_A_TEST_UNLOCK            0x8B
  55 #define DA7210_A_PLL1                   0x90
  56 #define DA7210_A_CP_MODE                0xA7
  57
  58 /* STARTUP1 bit fields */
  59 #define DA7210_SC_MST_EN                (1 << 0)
  60
  61 /* MIC_L bit fields */
  62 #define DA7210_MICBIAS_EN               (1 << 6)
  63 #define DA7210_MIC_L_EN                 (1 << 7)
  64
  65 /* MIC_R bit fields */
  66 #define DA7210_MIC_R_EN                 (1 << 7)
  67
  68 /* INMIX_L bit fields */
  69 #define DA7210_IN_L_EN                  (1 << 7)
  70
  71 /* INMIX_R bit fields */
  72 #define DA7210_IN_R_EN                  (1 << 7)
  73
  74 /* ADC bit fields */
  75 #define DA7210_ADC_L_EN                 (1 << 3)
  76 #define DA7210_ADC_R_EN                 (1 << 7)
  77
  78 /* DAC/ADC HPF fields */
  79 #define DA7210_VOICE_F0_MASK            (0x7 << 4)
  80 #define DA7210_VOICE_F0_25              (1 << 4)
  81 #define DA7210_VOICE_EN                 (1 << 7)
  82
  83 /* DAC_SEL bit fields */
  84 #define DA7210_DAC_L_SRC_DAI_L          (4 << 0)
  85 #define DA7210_DAC_L_EN                 (1 << 3)
  86 #define DA7210_DAC_R_SRC_DAI_R          (5 << 4)
  87 #define DA7210_DAC_R_EN                 (1 << 7)
  88
  89 /* OUTMIX_L bit fields */
  90 #define DA7210_OUT_L_EN                 (1 << 7)
  91
  92 /* OUTMIX_R bit fields */
  93 #define DA7210_OUT_R_EN                 (1 << 7)
  94
  95 /* HP_CFG bit fields */
  96 #define DA7210_HP_2CAP_MODE             (1 << 1)
  97 #define DA7210_HP_SENSE_EN              (1 << 2)
  98 #define DA7210_HP_L_EN                  (1 << 3)
  99 #define DA7210_HP_MODE                  (1 << 6)
 100 #define DA7210_HP_R_EN                  (1 << 7)
 101
 102 /* DAI_SRC_SEL bit fields */
 103 #define DA7210_DAI_OUT_L_SRC            (6 << 0)
 104 #define DA7210_DAI_OUT_R_SRC            (7 << 4)
 105
 106 /* DAI_CFG1 bit fields */
 107 #define DA7210_DAI_WORD_S16_LE          (0 << 0)
 108 #define DA7210_DAI_WORD_S24_LE          (2 << 0)
 109 #define DA7210_DAI_FLEN_64BIT           (1 << 2)
 110 #define DA7210_DAI_MODE_MASTER          (1 << 7)
 111
 112 /* DAI_CFG3 bit fields */
 113 #define DA7210_DAI_FORMAT_I2SMODE       (0 << 0)
 114 #define DA7210_DAI_OE                   (1 << 3)
 115 #define DA7210_DAI_EN                   (1 << 7)
 116
 117 /*PLL_DIV3 bit fields */
 118 #define DA7210_MCLK_RANGE_10_20_MHZ     (1 << 4)
 119 #define DA7210_PLL_BYP                  (1 << 6)
 120
 121 /* PLL bit fields */
 122 #define DA7210_PLL_FS_MASK              (0xF << 0)
 123 #define DA7210_PLL_FS_8000              (0x1 << 0)
 124 #define DA7210_PLL_FS_11025             (0x2 << 0)
 125 #define DA7210_PLL_FS_12000             (0x3 << 0)
 126 #define DA7210_PLL_FS_16000             (0x5 << 0)
 127 #define DA7210_PLL_FS_22050             (0x6 << 0)
 128 #define DA7210_PLL_FS_24000             (0x7 << 0)
 129 #define DA7210_PLL_FS_32000             (0x9 << 0)
 130 #define DA7210_PLL_FS_44100             (0xA << 0)
 131 #define DA7210_PLL_FS_48000             (0xB << 0)
 132 #define DA7210_PLL_FS_88200             (0xE << 0)
 133 #define DA7210_PLL_FS_96000             (0xF << 0)
 134 #define DA7210_PLL_EN                   (0x1 << 7)
 135
 136 #define DA7210_VERSION "0.0.1"
 137
 138 /*
 139  * Playback Volume
 140  *
 141  * max          : 0x3F (+15.0 dB)
 142  *                 (1.5 dB step)
 143  * min          : 0x11 (-54.0 dB)
 144  * mute         : 0x10
 145  * reserved     : 0x00 - 0x0F
 146  *
 147  * ** FIXME **
 148  *
 149  * Reserved area are considered as "mute".
 150  * -> min = -79.5 dB
 151  */
 152 static const DECLARE_TLV_DB_SCALE(hp_out_tlv, -7950, 150, 1);
 153
 154 static const struct snd_kcontrol_new da7210_snd_controls[] = {
 155
 156         SOC_DOUBLE_R_TLV("HeadPhone Playback Volume",
 157                          DA7210_HP_L_VOL, DA7210_HP_R_VOL,
 158                          0, 0x3F, 0, hp_out_tlv),
 159 };
 160
 161 /* Codec private data */
 162 struct da7210_priv {
 163         enum snd_soc_control_type control_type;
 164         void *control_data;
 165 };
 166
 167 /*
 168  * Register cache
 169  */
 170 static const u8 da7210_reg[] = {
 171         0x00, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R0  - R7  */
 172         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, /* R8  - RF  */
 173         0x00, 0x00, 0x00, 0x00, 0x08, 0x10, 0x10, 0x54, /* R10 - R17 */
 174         0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R18 - R1F */
 175         0x00, 0x00, 0x00, 0x02, 0x00, 0x76, 0x00, 0x00, /* R20 - R27 */
 176         0x04, 0x00, 0x00, 0x30, 0x2A, 0x00, 0x40, 0x00, /* R28 - R2F */
 177         0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, /* R30 - R37 */
 178         0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x00, 0x00, /* R38 - R3F */
 179         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R40 - R4F */
 180         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R48 - R4F */
 181         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R50 - R57 */
 182         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R58 - R5F */
 183         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R60 - R67 */
 184         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R68 - R6F */
 185         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* R70 - R77 */
 186         0x00, 0x00, 0x00, 0x00, 0x00, 0x54, 0x54, 0x00, /* R78 - R7F */
 187         0x00, 0x00, 0x2C, 0x00, 0x00, 0x00, 0x00, 0x00, /* R80 - R87 */
 188         0x00,                                           /* R88       */
 189 };
 190
 191 /*
 192  * Read da7210 register cache
 193  */
 194 static inline u32 da7210_read_reg_cache(struct snd_soc_codec *codec, u32 reg)
 195 {
 196         u8 *cache = codec->reg_cache;
 197         BUG_ON(reg >= ARRAY_SIZE(da7210_reg));
 198         return cache[reg];
 199 }
 200
 201 /*
 202  * Write to the da7210 register space
 203  */
 204 static int da7210_write(struct snd_soc_codec *codec, u32 reg, u32 value)
 205 {
 206         u8 *cache = codec->reg_cache;
 207         u8 data[2];
 208
 209         BUG_ON(codec->driver->volatile_register);
 210
 211         data[0] = reg & 0xff;
 212         data[1] = value & 0xff;
 213
 214         if (reg >= codec->driver->reg_cache_size)
 215                 return -EIO;
 216
 217         if (2 != codec->hw_write(codec->control_data, data, 2))
 218                 return -EIO;
 219
 220         cache[reg] = value;
 221         return 0;
 222 }
 223
 224 /*
 225  * Read from the da7210 register space.
 226  */
 227 static inline u32 da7210_read(struct snd_soc_codec *codec, u32 reg)
 228 {
 229         if (DA7210_STATUS == reg)
 230                 return i2c_smbus_read_byte_data(codec->control_data, reg);
 231
 232         return da7210_read_reg_cache(codec, reg);
 233 }
 234
 235 static int da7210_startup(struct snd_pcm_substream *substream,
 236                           struct snd_soc_dai *dai)
 237 {
 238         int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
 239         struct snd_soc_codec *codec = dai->codec;
 240
 241         if (is_play) {
 242                 /* Enable Out */
 243                 snd_soc_update_bits(codec, DA7210_OUTMIX_L, 0x1F, 0x10);
 244                 snd_soc_update_bits(codec, DA7210_OUTMIX_R, 0x1F, 0x10);
 245
 246         } else {
 247                 /* Volume 7 */
 248                 snd_soc_update_bits(codec, DA7210_MIC_L, 0x7, 0x7);
 249                 snd_soc_update_bits(codec, DA7210_MIC_R, 0x7, 0x7);
 250
 251                 /* Enable Mic */
 252                 snd_soc_update_bits(codec, DA7210_INMIX_L, 0x1F, 0x1);
 253                 snd_soc_update_bits(codec, DA7210_INMIX_R, 0x1F, 0x1);
 254         }
 255
 256         return 0;
 257 }
 258
 259 /*
 260  * Set PCM DAI word length.
 261  */
 262 static int da7210_hw_params(struct snd_pcm_substream *substream,
 263                             struct snd_pcm_hw_params *params,
 264                             struct snd_soc_dai *dai)
 265 {
 266         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 267         struct snd_soc_codec *codec = rtd->codec;
 268         u32 dai_cfg1;
 269         u32 hpf_reg, hpf_mask, hpf_value;
 270         u32 fs, bypass;
 271
 272         /* set DAI source to Left and Right ADC */
 273         da7210_write(codec, DA7210_DAI_SRC_SEL,
 274                      DA7210_DAI_OUT_R_SRC | DA7210_DAI_OUT_L_SRC);
 275
 276         /* Enable DAI */
 277         da7210_write(codec, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN);
 278
 279         dai_cfg1 = 0xFC & da7210_read(codec, DA7210_DAI_CFG1);
 280
 281         switch (params_format(params)) {
 282         case SNDRV_PCM_FORMAT_S16_LE:
 283                 dai_cfg1 |= DA7210_DAI_WORD_S16_LE;
 284                 break;
 285         case SNDRV_PCM_FORMAT_S24_LE:
 286                 dai_cfg1 |= DA7210_DAI_WORD_S24_LE;
 287                 break;
 288         default:
 289                 return -EINVAL;
 290         }
 291
 292         da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
 293
 294         hpf_reg = (SNDRV_PCM_STREAM_PLAYBACK == substream->stream) ?
 295                 DA7210_DAC_HPF : DA7210_ADC_HPF;
 296
 297         switch (params_rate(params)) {
 298         case 8000:
 299                 fs              = DA7210_PLL_FS_8000;
 300                 hpf_mask        = DA7210_VOICE_F0_MASK  | DA7210_VOICE_EN;
 301                 hpf_value       = DA7210_VOICE_F0_25    | DA7210_VOICE_EN;
 302                 bypass          = DA7210_PLL_BYP;
 303                 break;
 304         case 11025:
 305                 fs              = DA7210_PLL_FS_11025;
 306                 hpf_mask        = DA7210_VOICE_F0_MASK  | DA7210_VOICE_EN;
 307                 hpf_value       = DA7210_VOICE_F0_25    | DA7210_VOICE_EN;
 308                 bypass          = 0;
 309                 break;
 310         case 12000:
 311                 fs              = DA7210_PLL_FS_12000;
 312                 hpf_mask        = DA7210_VOICE_F0_MASK  | DA7210_VOICE_EN;
 313                 hpf_value       = DA7210_VOICE_F0_25    | DA7210_VOICE_EN;
 314                 bypass          = DA7210_PLL_BYP;
 315                 break;
 316         case 16000:
 317                 fs              = DA7210_PLL_FS_16000;
 318                 hpf_mask        = DA7210_VOICE_F0_MASK  | DA7210_VOICE_EN;
 319                 hpf_value       = DA7210_VOICE_F0_25    | DA7210_VOICE_EN;
 320                 bypass          = DA7210_PLL_BYP;
 321                 break;
 322         case 22050:
 323                 fs              = DA7210_PLL_FS_22050;
 324                 hpf_mask        = DA7210_VOICE_EN;
 325                 hpf_value       = 0;
 326                 bypass          = 0;
 327                 break;
 328         case 32000:
 329                 fs              = DA7210_PLL_FS_32000;
 330                 hpf_mask        = DA7210_VOICE_EN;
 331                 hpf_value       = 0;
 332                 bypass          = DA7210_PLL_BYP;
 333                 break;
 334         case 44100:
 335                 fs              = DA7210_PLL_FS_44100;
 336                 hpf_mask        = DA7210_VOICE_EN;
 337                 hpf_value       = 0;
 338                 bypass          = 0;
 339                 break;
 340         case 48000:
 341                 fs              = DA7210_PLL_FS_48000;
 342                 hpf_mask        = DA7210_VOICE_EN;
 343                 hpf_value       = 0;
 344                 bypass          = DA7210_PLL_BYP;
 345                 break;
 346         case 88200:
 347                 fs              = DA7210_PLL_FS_88200;
 348                 hpf_mask        = DA7210_VOICE_EN;
 349                 hpf_value       = 0;
 350                 bypass          = 0;
 351                 break;
 352         case 96000:
 353                 fs              = DA7210_PLL_FS_96000;
 354                 hpf_mask        = DA7210_VOICE_EN;
 355                 hpf_value       = 0;
 356                 bypass          = DA7210_PLL_BYP;
 357                 break;
 358         default:
 359                 return -EINVAL;
 360         }
 361
 362         /* Disable active mode */
 363         snd_soc_update_bits(codec, DA7210_STARTUP1, DA7210_SC_MST_EN, 0);
 364
 365         snd_soc_update_bits(codec, hpf_reg, hpf_mask, hpf_value);
 366         snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_FS_MASK, fs);
 367         snd_soc_update_bits(codec, DA7210_PLL_DIV3, DA7210_PLL_BYP, bypass);
 368
 369         /* Enable active mode */
 370         snd_soc_update_bits(codec, DA7210_STARTUP1,
 371                             DA7210_SC_MST_EN, DA7210_SC_MST_EN);
 372
 373         return 0;
 374 }
 375
 376 /*
 377  * Set DAI mode and Format
 378  */
 379 static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
 380 {
 381         struct snd_soc_codec *codec = codec_dai->codec;
 382         u32 dai_cfg1;
 383         u32 dai_cfg3;
 384
 385         dai_cfg1 = 0x7f & da7210_read(codec, DA7210_DAI_CFG1);
 386         dai_cfg3 = 0xfc & da7210_read(codec, DA7210_DAI_CFG3);
 387
 388         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 389         case SND_SOC_DAIFMT_CBM_CFM:
 390                 dai_cfg1 |= DA7210_DAI_MODE_MASTER;
 391                 break;
 392         default:
 393                 return -EINVAL;
 394         }
 395
 396         /* FIXME
 397          *
 398          * It support I2S only now
 399          */
 400         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 401         case SND_SOC_DAIFMT_I2S:
 402                 dai_cfg3 |= DA7210_DAI_FORMAT_I2SMODE;
 403                 break;
 404         default:
 405                 return -EINVAL;
 406         }
 407
 408         /* FIXME
 409          *
 410          * It support 64bit data transmission only now
 411          */
 412         dai_cfg1 |= DA7210_DAI_FLEN_64BIT;
 413
 414         da7210_write(codec, DA7210_DAI_CFG1, dai_cfg1);
 415         da7210_write(codec, DA7210_DAI_CFG3, dai_cfg3);
 416
 417         return 0;
 418 }
 419
 420 #define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)
 421
 422 /* DAI operations */
 423 static struct snd_soc_dai_ops da7210_dai_ops = {
 424         .startup        = da7210_startup,
 425         .hw_params      = da7210_hw_params,
 426         .set_fmt        = da7210_set_dai_fmt,
 427 };
 428
 429 static struct snd_soc_dai_driver da7210_dai = {
 430         .name = "da7210-hifi",
 431         /* playback capabilities */
 432         .playback = {
 433                 .stream_name = "Playback",
 434                 .channels_min = 1,
 435                 .channels_max = 2,
 436                 .rates = SNDRV_PCM_RATE_8000_96000,
 437                 .formats = DA7210_FORMATS,
 438         },
 439         /* capture capabilities */
 440         .capture = {
 441                 .stream_name = "Capture",
 442                 .channels_min = 1,
 443                 .channels_max = 2,
 444                 .rates = SNDRV_PCM_RATE_8000_96000,
 445                 .formats = DA7210_FORMATS,
 446         },
 447         .ops = &da7210_dai_ops,
 448         .symmetric_rates = 1,
 449 };
 450
 451 static int da7210_probe(struct snd_soc_codec *codec)
 452 {
 453         struct da7210_priv *da7210 = snd_soc_codec_get_drvdata(codec);
 454
 455         dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);
 456
 457         codec->control_data     = da7210->control_data;
 458         codec->hw_write         = (hw_write_t)i2c_master_send;
 459
 460         /* FIXME
 461          *
 462          * This driver use fixed value here
 463          * And below settings expects MCLK = 12.288MHz
 464          *
 465          * When you select different MCLK, please check...
 466          *      DA7210_PLL_DIV1 val
 467          *      DA7210_PLL_DIV2 val
 468          *      DA7210_PLL_DIV3 val
 469          *      DA7210_PLL_DIV3 :: DA7210_MCLK_RANGExxx
 470          */
 471
 472         /*
 473          * make sure that DA7210 use bypass mode before start up
 474          */
 475         da7210_write(codec, DA7210_STARTUP1, 0);
 476         da7210_write(codec, DA7210_PLL_DIV3,
 477                      DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
 478
 479         /*
 480          * ADC settings
 481          */
 482
 483         /* Enable Left & Right MIC PGA and Mic Bias */
 484         da7210_write(codec, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN);
 485         da7210_write(codec, DA7210_MIC_R, DA7210_MIC_R_EN);
 486
 487         /* Enable Left and Right input PGA */
 488         da7210_write(codec, DA7210_INMIX_L, DA7210_IN_L_EN);
 489         da7210_write(codec, DA7210_INMIX_R, DA7210_IN_R_EN);
 490
 491         /* Enable Left and Right ADC */
 492         da7210_write(codec, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN);
 493
 494         /*
 495          * DAC settings
 496          */
 497
 498         /* Enable Left and Right DAC */
 499         da7210_write(codec, DA7210_DAC_SEL,
 500                      DA7210_DAC_L_SRC_DAI_L | DA7210_DAC_L_EN |
 501                      DA7210_DAC_R_SRC_DAI_R | DA7210_DAC_R_EN);
 502
 503         /* Enable Left and Right out PGA */
 504         da7210_write(codec, DA7210_OUTMIX_L, DA7210_OUT_L_EN);
 505         da7210_write(codec, DA7210_OUTMIX_R, DA7210_OUT_R_EN);
 506
 507         /* Enable Left and Right HeadPhone PGA */
 508         da7210_write(codec, DA7210_HP_CFG,
 509                      DA7210_HP_2CAP_MODE | DA7210_HP_SENSE_EN |
 510                      DA7210_HP_L_EN | DA7210_HP_MODE | DA7210_HP_R_EN);
 511
 512         /* Diable PLL and bypass it */
 513         da7210_write(codec, DA7210_PLL, DA7210_PLL_FS_48000);
 514
 515         /*
 516          * If 48kHz sound came, it use bypass mode,
 517          * and when it is 44.1kHz, it use PLL.
 518          *
 519          * This time, this driver sets PLL always ON
 520          * and controls bypass/PLL mode by switching
 521          * DA7210_PLL_DIV3 :: DA7210_PLL_BYP bit.
 522          *   see da7210_hw_params
 523          */
 524         da7210_write(codec, DA7210_PLL_DIV1, 0xE5); /* MCLK = 12.288MHz */
 525         da7210_write(codec, DA7210_PLL_DIV2, 0x99);
 526         da7210_write(codec, DA7210_PLL_DIV3, 0x0A |
 527                      DA7210_MCLK_RANGE_10_20_MHZ | DA7210_PLL_BYP);
 528         snd_soc_update_bits(codec, DA7210_PLL, DA7210_PLL_EN, DA7210_PLL_EN);
 529
 530         /* As suggested by Dialog */
 531         da7210_write(codec, DA7210_A_HID_UNLOCK,        0x8B); /* unlock */
 532         da7210_write(codec, DA7210_A_TEST_UNLOCK,       0xB4);
 533         da7210_write(codec, DA7210_A_PLL1,              0x01);
 534         da7210_write(codec, DA7210_A_CP_MODE,           0x7C);
 535         da7210_write(codec, DA7210_A_HID_UNLOCK,        0x00); /* re-lock */
 536         da7210_write(codec, DA7210_A_TEST_UNLOCK,       0x00);
 537
 538         /* Activate all enabled subsystem */
 539         da7210_write(codec, DA7210_STARTUP1, DA7210_SC_MST_EN);
 540
 541         snd_soc_add_controls(codec, da7210_snd_controls,
 542                              ARRAY_SIZE(da7210_snd_controls));
 543
 544         dev_info(codec->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);
 545
 546         return 0;
 547 }
 548
 549 static struct snd_soc_codec_driver soc_codec_dev_da7210 = {
 550         .probe                  = da7210_probe,
 551         .read                   = da7210_read,
 552         .write                  = da7210_write,
 553         .reg_cache_size         = ARRAY_SIZE(da7210_reg),
 554         .reg_word_size          = sizeof(u8),
 555         .reg_cache_default      = da7210_reg,
 556 };
 557
 558 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 559 static int __devinit da7210_i2c_probe(struct i2c_client *i2c,
 560                                       const struct i2c_device_id *id)
 561 {
 562         struct da7210_priv *da7210;
 563         int ret;
 564
 565         da7210 = kzalloc(sizeof(struct da7210_priv), GFP_KERNEL);
 566         if (!da7210)
 567                 return -ENOMEM;
 568
 569         i2c_set_clientdata(i2c, da7210);
 570         da7210->control_data = i2c;
 571         da7210->control_type = SND_SOC_I2C;
 572
 573         ret =  snd_soc_register_codec(&i2c->dev,
 574                         &soc_codec_dev_da7210, &da7210_dai, 1);
 575         if (ret < 0)
 576                 kfree(da7210);
 577
 578         return ret;
 579 }
 580
 581 static int __devexit da7210_i2c_remove(struct i2c_client *client)
 582 {
 583         snd_soc_unregister_codec(&client->dev);
 584         kfree(i2c_get_clientdata(client));
 585         return 0;
 586 }
 587
 588 static const struct i2c_device_id da7210_i2c_id[] = {
 589         { "da7210", 0 },
 590         { }
 591 };
 592 MODULE_DEVICE_TABLE(i2c, da7210_i2c_id);
 593
 594 /* I2C codec control layer */
 595 static struct i2c_driver da7210_i2c_driver = {
 596         .driver = {
 597                 .name = "da7210-codec",
 598                 .owner = THIS_MODULE,
 599         },
 600         .probe          = da7210_i2c_probe,
 601         .remove         = __devexit_p(da7210_i2c_remove),
 602         .id_table       = da7210_i2c_id,
 603 };
 604 #endif
 605
 606 static int __init da7210_modinit(void)
 607 {
 608         int ret = 0;
 609 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 610         ret = i2c_add_driver(&da7210_i2c_driver);
 611 #endif
 612         return ret;
 613 }
 614 module_init(da7210_modinit);
 615
 616 static void __exit da7210_exit(void)
 617 {
 618 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 619         i2c_del_driver(&da7210_i2c_driver);
 620 #endif
 621 }
 622 module_exit(da7210_exit);
 623
 624 MODULE_DESCRIPTION("ASoC DA7210 driver");
 625 MODULE_AUTHOR("David Chen, Kuninori Morimoto");
 626 MODULE_LICENSE("GPL");