sound/soc/codecs/ssm2602.c

   1 /*
   2  * File:         sound/soc/codecs/ssm2602.c
   3  * Author:       Cliff Cai <Cliff.Cai@analog.com>
   4  *
   5  * Created:      Tue June 06 2008
   6  * Description:  Driver for ssm2602 sound chip
   7  *
   8  * Modified:
   9  *               Copyright 2008 Analog Devices Inc.
  10  *
  11  * Bugs:         Enter bugs at http://blackfin.uclinux.org/
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License as published by
  15  * the Free Software Foundation; either version 2 of the License, or
  16  * (at your option) any later version.
  17  *
  18  * This program is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU General Public License for more details.
  22  *
  23  * You should have received a copy of the GNU General Public License
  24  * along with this program; if not, see the file COPYING, or write
  25  * to the Free Software Foundation, Inc.,
  26  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  27  */
  28
  29 #include <linux/module.h>
  30 #include <linux/regmap.h>
  31 #include <linux/slab.h>
  32
  33 #include <sound/pcm.h>
  34 #include <sound/pcm_params.h>
  35 #include <sound/soc.h>
  36 #include <sound/tlv.h>
  37
  38 #include "ssm2602.h"
  39
  40 /* codec private data */
  41 struct ssm2602_priv {
  42         unsigned int sysclk;
  43         const struct snd_pcm_hw_constraint_list *sysclk_constraints;
  44
  45         struct regmap *regmap;
  46
  47         enum ssm2602_type type;
  48         unsigned int clk_out_pwr;
  49 };
  50
  51 /*
  52  * ssm2602 register cache
  53  * We can't read the ssm2602 register space when we are
  54  * using 2 wire for device control, so we cache them instead.
  55  * There is no point in caching the reset register
  56  */
  57 static const u16 ssm2602_reg[SSM2602_CACHEREGNUM] = {
  58         0x0097, 0x0097, 0x0079, 0x0079,
  59         0x000a, 0x0008, 0x009f, 0x000a,
  60         0x0000, 0x0000
  61 };
  62
  63
  64 /*Appending several "None"s just for OSS mixer use*/
  65 static const char *ssm2602_input_select[] = {
  66         "Line", "Mic",
  67 };
  68
  69 static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
  70
  71 static const struct soc_enum ssm2602_enum[] = {
  72         SOC_ENUM_SINGLE(SSM2602_APANA, 2, ARRAY_SIZE(ssm2602_input_select),
  73                         ssm2602_input_select),
  74         SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, ARRAY_SIZE(ssm2602_deemph),
  75                         ssm2602_deemph),
  76 };
  77
  78 static const unsigned int ssm260x_outmix_tlv[] = {
  79         TLV_DB_RANGE_HEAD(2),
  80         0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
  81         48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0),
  82 };
  83
  84 static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
  85 static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
  86
  87 static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
  88 SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
  89         ssm260x_inpga_tlv),
  90 SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
  91
  92 SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
  93 SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
  94
  95 SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
  96 };
  97
  98 static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
  99 SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
 100         0, 127, 0, ssm260x_outmix_tlv),
 101 SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
 102         7, 1, 0),
 103 SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
 104         ssm260x_sidetone_tlv),
 105
 106 SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
 107 SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
 108 SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
 109 };
 110
 111 /* Output Mixer */
 112 static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
 113 SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
 114 SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
 115 SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
 116 };
 117
 118 /* Input mux */
 119 static const struct snd_kcontrol_new ssm2602_input_mux_controls =
 120 SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
 121
 122 static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
 123 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
 124 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
 125 SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
 126
 127 SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
 128
 129 SND_SOC_DAPM_OUTPUT("LOUT"),
 130 SND_SOC_DAPM_OUTPUT("ROUT"),
 131 SND_SOC_DAPM_INPUT("RLINEIN"),
 132 SND_SOC_DAPM_INPUT("LLINEIN"),
 133 };
 134
 135 static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
 136 SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
 137         ssm260x_output_mixer_controls,
 138         ARRAY_SIZE(ssm260x_output_mixer_controls)),
 139
 140 SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
 141 SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
 142
 143 SND_SOC_DAPM_OUTPUT("LHPOUT"),
 144 SND_SOC_DAPM_OUTPUT("RHPOUT"),
 145 SND_SOC_DAPM_INPUT("MICIN"),
 146 };
 147
 148 static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
 149 SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
 150         ssm260x_output_mixer_controls,
 151         ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
 152 };
 153
 154 static const struct snd_soc_dapm_route ssm260x_routes[] = {
 155         {"DAC", NULL, "Digital Core Power"},
 156         {"ADC", NULL, "Digital Core Power"},
 157
 158         {"Output Mixer", "Line Bypass Switch", "Line Input"},
 159         {"Output Mixer", "HiFi Playback Switch", "DAC"},
 160
 161         {"ROUT", NULL, "Output Mixer"},
 162         {"LOUT", NULL, "Output Mixer"},
 163
 164         {"Line Input", NULL, "LLINEIN"},
 165         {"Line Input", NULL, "RLINEIN"},
 166 };
 167
 168 static const struct snd_soc_dapm_route ssm2602_routes[] = {
 169         {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
 170
 171         {"RHPOUT", NULL, "Output Mixer"},
 172         {"LHPOUT", NULL, "Output Mixer"},
 173
 174         {"Input Mux", "Line", "Line Input"},
 175         {"Input Mux", "Mic", "Mic Bias"},
 176         {"ADC", NULL, "Input Mux"},
 177
 178         {"Mic Bias", NULL, "MICIN"},
 179 };
 180
 181 static const struct snd_soc_dapm_route ssm2604_routes[] = {
 182         {"ADC", NULL, "Line Input"},
 183 };
 184
 185 static const unsigned int ssm2602_rates_12288000[] = {
 186         8000, 16000, 32000, 48000, 96000,
 187 };
 188
 189 static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
 190         .list = ssm2602_rates_12288000,
 191         .count = ARRAY_SIZE(ssm2602_rates_12288000),
 192 };
 193
 194 static const unsigned int ssm2602_rates_11289600[] = {
 195         8000, 11025, 22050, 44100, 88200,
 196 };
 197
 198 static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
 199         .list = ssm2602_rates_11289600,
 200         .count = ARRAY_SIZE(ssm2602_rates_11289600),
 201 };
 202
 203 struct ssm2602_coeff {
 204         u32 mclk;
 205         u32 rate;
 206         u8 srate;
 207 };
 208
 209 #define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
 210
 211 /* codec mclk clock coefficients */
 212 static const struct ssm2602_coeff ssm2602_coeff_table[] = {
 213         /* 48k */
 214         {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
 215         {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
 216         {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
 217
 218         /* 32k */
 219         {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
 220         {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
 221         {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
 222
 223         /* 16k */
 224         {12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)},
 225         {18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)},
 226         {12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)},
 227
 228         /* 8k */
 229         {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
 230         {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
 231         {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
 232         {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
 233         {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
 234
 235         /* 96k */
 236         {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
 237         {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
 238         {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
 239
 240         /* 11.025k */
 241         {11289600, 11025, SSM2602_COEFF_SRATE(0xc, 0x0, 0x0)},
 242         {16934400, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x0)},
 243         {12000000, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x1)},
 244
 245         /* 22.05k */
 246         {11289600, 22050, SSM2602_COEFF_SRATE(0xd, 0x0, 0x0)},
 247         {16934400, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x0)},
 248         {12000000, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x1)},
 249
 250         /* 44.1k */
 251         {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
 252         {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
 253         {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
 254
 255         /* 88.2k */
 256         {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
 257         {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
 258         {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
 259 };
 260
 261 static inline int ssm2602_get_coeff(int mclk, int rate)
 262 {
 263         int i;
 264
 265         for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
 266                 if (ssm2602_coeff_table[i].rate == rate &&
 267                         ssm2602_coeff_table[i].mclk == mclk)
 268                         return ssm2602_coeff_table[i].srate;
 269         }
 270         return -EINVAL;
 271 }
 272
 273 static int ssm2602_hw_params(struct snd_pcm_substream *substream,
 274         struct snd_pcm_hw_params *params,
 275         struct snd_soc_dai *dai)
 276 {
 277         struct snd_soc_codec *codec = dai->codec;
 278         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 279         int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
 280         unsigned int iface;
 281
 282         if (srate < 0)
 283                 return srate;
 284
 285         regmap_write(ssm2602->regmap, SSM2602_SRATE, srate);
 286
 287         /* bit size */
 288         switch (params_width(params)) {
 289         case 16:
 290                 iface = 0x0;
 291                 break;
 292         case 20:
 293                 iface = 0x4;
 294                 break;
 295         case 24:
 296                 iface = 0x8;
 297                 break;
 298         case 32:
 299                 iface = 0xc;
 300                 break;
 301         default:
 302                 return -EINVAL;
 303         }
 304         regmap_update_bits(ssm2602->regmap, SSM2602_IFACE,
 305                 IFACE_AUDIO_DATA_LEN, iface);
 306         return 0;
 307 }
 308
 309 static int ssm2602_startup(struct snd_pcm_substream *substream,
 310                            struct snd_soc_dai *dai)
 311 {
 312         struct snd_soc_codec *codec = dai->codec;
 313         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 314
 315         if (ssm2602->sysclk_constraints) {
 316                 snd_pcm_hw_constraint_list(substream->runtime, 0,
 317                                    SNDRV_PCM_HW_PARAM_RATE,
 318                                    ssm2602->sysclk_constraints);
 319         }
 320
 321         return 0;
 322 }
 323
 324 static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
 325 {
 326         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(dai->codec);
 327
 328         if (mute)
 329                 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
 330                                     APDIGI_ENABLE_DAC_MUTE,
 331                                     APDIGI_ENABLE_DAC_MUTE);
 332         else
 333                 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
 334                                     APDIGI_ENABLE_DAC_MUTE, 0);
 335         return 0;
 336 }
 337
 338 static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 339                 int clk_id, unsigned int freq, int dir)
 340 {
 341         struct snd_soc_codec *codec = codec_dai->codec;
 342         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 343
 344         if (dir == SND_SOC_CLOCK_IN) {
 345                 if (clk_id != SSM2602_SYSCLK)
 346                         return -EINVAL;
 347
 348                 switch (freq) {
 349                 case 12288000:
 350                 case 18432000:
 351                         ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
 352                         break;
 353                 case 11289600:
 354                 case 16934400:
 355                         ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
 356                         break;
 357                 case 12000000:
 358                         ssm2602->sysclk_constraints = NULL;
 359                         break;
 360                 default:
 361                         return -EINVAL;
 362                 }
 363                 ssm2602->sysclk = freq;
 364         } else {
 365                 unsigned int mask;
 366
 367                 switch (clk_id) {
 368                 case SSM2602_CLK_CLKOUT:
 369                         mask = PWR_CLK_OUT_PDN;
 370                         break;
 371                 case SSM2602_CLK_XTO:
 372                         mask = PWR_OSC_PDN;
 373                         break;
 374                 default:
 375                         return -EINVAL;
 376                 }
 377
 378                 if (freq == 0)
 379                         ssm2602->clk_out_pwr |= mask;
 380                 else
 381                         ssm2602->clk_out_pwr &= ~mask;
 382
 383                 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
 384                         PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
 385         }
 386
 387         return 0;
 388 }
 389
 390 static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
 391                 unsigned int fmt)
 392 {
 393         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec_dai->codec);
 394         unsigned int iface = 0;
 395
 396         /* set master/slave audio interface */
 397         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 398         case SND_SOC_DAIFMT_CBM_CFM:
 399                 iface |= 0x0040;
 400                 break;
 401         case SND_SOC_DAIFMT_CBS_CFS:
 402                 break;
 403         default:
 404                 return -EINVAL;
 405         }
 406
 407         /* interface format */
 408         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 409         case SND_SOC_DAIFMT_I2S:
 410                 iface |= 0x0002;
 411                 break;
 412         case SND_SOC_DAIFMT_RIGHT_J:
 413                 break;
 414         case SND_SOC_DAIFMT_LEFT_J:
 415                 iface |= 0x0001;
 416                 break;
 417         case SND_SOC_DAIFMT_DSP_A:
 418                 iface |= 0x0013;
 419                 break;
 420         case SND_SOC_DAIFMT_DSP_B:
 421                 iface |= 0x0003;
 422                 break;
 423         default:
 424                 return -EINVAL;
 425         }
 426
 427         /* clock inversion */
 428         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 429         case SND_SOC_DAIFMT_NB_NF:
 430                 break;
 431         case SND_SOC_DAIFMT_IB_IF:
 432                 iface |= 0x0090;
 433                 break;
 434         case SND_SOC_DAIFMT_IB_NF:
 435                 iface |= 0x0080;
 436                 break;
 437         case SND_SOC_DAIFMT_NB_IF:
 438                 iface |= 0x0010;
 439                 break;
 440         default:
 441                 return -EINVAL;
 442         }
 443
 444         /* set iface */
 445         regmap_write(ssm2602->regmap, SSM2602_IFACE, iface);
 446         return 0;
 447 }
 448
 449 static int ssm2602_set_bias_level(struct snd_soc_codec *codec,
 450                                  enum snd_soc_bias_level level)
 451 {
 452         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 453
 454         switch (level) {
 455         case SND_SOC_BIAS_ON:
 456                 /* vref/mid on, osc and clkout on if enabled */
 457                 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
 458                         PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
 459                         ssm2602->clk_out_pwr);
 460                 break;
 461         case SND_SOC_BIAS_PREPARE:
 462                 break;
 463         case SND_SOC_BIAS_STANDBY:
 464                 /* everything off except vref/vmid, */
 465                 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
 466                         PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
 467                         PWR_CLK_OUT_PDN | PWR_OSC_PDN);
 468                 break;
 469         case SND_SOC_BIAS_OFF:
 470                 /* everything off */
 471                 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
 472                         PWR_POWER_OFF, PWR_POWER_OFF);
 473                 break;
 474
 475         }
 476         return 0;
 477 }
 478
 479 #define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
 480                 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
 481                 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
 482                 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
 483                 SNDRV_PCM_RATE_96000)
 484
 485 #define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 486                 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
 487
 488 static const struct snd_soc_dai_ops ssm2602_dai_ops = {
 489         .startup        = ssm2602_startup,
 490         .hw_params      = ssm2602_hw_params,
 491         .digital_mute   = ssm2602_mute,
 492         .set_sysclk     = ssm2602_set_dai_sysclk,
 493         .set_fmt        = ssm2602_set_dai_fmt,
 494 };
 495
 496 static struct snd_soc_dai_driver ssm2602_dai = {
 497         .name = "ssm2602-hifi",
 498         .playback = {
 499                 .stream_name = "Playback",
 500                 .channels_min = 2,
 501                 .channels_max = 2,
 502                 .rates = SSM2602_RATES,
 503                 .formats = SSM2602_FORMATS,},
 504         .capture = {
 505                 .stream_name = "Capture",
 506                 .channels_min = 2,
 507                 .channels_max = 2,
 508                 .rates = SSM2602_RATES,
 509                 .formats = SSM2602_FORMATS,},
 510         .ops = &ssm2602_dai_ops,
 511         .symmetric_rates = 1,
 512         .symmetric_samplebits = 1,
 513 };
 514
 515 static int ssm2602_resume(struct snd_soc_codec *codec)
 516 {
 517         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 518
 519         regcache_sync(ssm2602->regmap);
 520
 521         return 0;
 522 }
 523
 524 static int ssm2602_codec_probe(struct snd_soc_codec *codec)
 525 {
 526         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 527         struct snd_soc_dapm_context *dapm = &codec->dapm;
 528         int ret;
 529
 530         regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V,
 531                             LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
 532         regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V,
 533                             ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
 534
 535         ret = snd_soc_add_codec_controls(codec, ssm2602_snd_controls,
 536                         ARRAY_SIZE(ssm2602_snd_controls));
 537         if (ret)
 538                 return ret;
 539
 540         ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
 541                         ARRAY_SIZE(ssm2602_dapm_widgets));
 542         if (ret)
 543                 return ret;
 544
 545         return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
 546                         ARRAY_SIZE(ssm2602_routes));
 547 }
 548
 549 static int ssm2604_codec_probe(struct snd_soc_codec *codec)
 550 {
 551         struct snd_soc_dapm_context *dapm = &codec->dapm;
 552         int ret;
 553
 554         ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
 555                         ARRAY_SIZE(ssm2604_dapm_widgets));
 556         if (ret)
 557                 return ret;
 558
 559         return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
 560                         ARRAY_SIZE(ssm2604_routes));
 561 }
 562
 563 static int ssm260x_codec_probe(struct snd_soc_codec *codec)
 564 {
 565         struct ssm2602_priv *ssm2602 = snd_soc_codec_get_drvdata(codec);
 566         int ret;
 567
 568         ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0);
 569         if (ret < 0) {
 570                 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
 571                 return ret;
 572         }
 573
 574         /* set the update bits */
 575         regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL,
 576                             LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
 577         regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL,
 578                             RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
 579         /*select Line in as default input*/
 580         regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC |
 581                         APANA_ENABLE_MIC_BOOST);
 582
 583         switch (ssm2602->type) {
 584         case SSM2602:
 585                 ret = ssm2602_codec_probe(codec);
 586                 break;
 587         case SSM2604:
 588                 ret = ssm2604_codec_probe(codec);
 589                 break;
 590         }
 591
 592         return ret;
 593 }
 594
 595 static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = {
 596         .probe =        ssm260x_codec_probe,
 597         .resume =       ssm2602_resume,
 598         .set_bias_level = ssm2602_set_bias_level,
 599         .suspend_bias_off = true,
 600
 601         .controls = ssm260x_snd_controls,
 602         .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
 603         .dapm_widgets = ssm260x_dapm_widgets,
 604         .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
 605         .dapm_routes = ssm260x_routes,
 606         .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
 607 };
 608
 609 static bool ssm2602_register_volatile(struct device *dev, unsigned int reg)
 610 {
 611         return reg == SSM2602_RESET;
 612 }
 613
 614 const struct regmap_config ssm2602_regmap_config = {
 615         .val_bits = 9,
 616         .reg_bits = 7,
 617
 618         .max_register = SSM2602_RESET,
 619         .volatile_reg = ssm2602_register_volatile,
 620
 621         .cache_type = REGCACHE_RBTREE,
 622         .reg_defaults_raw = ssm2602_reg,
 623         .num_reg_defaults_raw = ARRAY_SIZE(ssm2602_reg),
 624 };
 625 EXPORT_SYMBOL_GPL(ssm2602_regmap_config);
 626
 627 int ssm2602_probe(struct device *dev, enum ssm2602_type type,
 628         struct regmap *regmap)
 629 {
 630         struct ssm2602_priv *ssm2602;
 631
 632         if (IS_ERR(regmap))
 633                 return PTR_ERR(regmap);
 634
 635         ssm2602 = devm_kzalloc(dev, sizeof(*ssm2602), GFP_KERNEL);
 636         if (ssm2602 == NULL)
 637                 return -ENOMEM;
 638
 639         dev_set_drvdata(dev, ssm2602);
 640         ssm2602->type = type;
 641         ssm2602->regmap = regmap;
 642
 643         return snd_soc_register_codec(dev, &soc_codec_dev_ssm2602,
 644                 &ssm2602_dai, 1);
 645 }
 646 EXPORT_SYMBOL_GPL(ssm2602_probe);
 647
 648 MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
 649 MODULE_AUTHOR("Cliff Cai");
 650 MODULE_LICENSE("GPL");