sound/soc/intel/boards/bytcr_rt5640.c

   1 /*
   2  *  byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform
   3  *
   4  *  Copyright (C) 2014 Intel Corp
   5  *  Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
   6  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; version 2 of the License.
  11  *
  12  *  This program is distributed in the hope that it will be useful, but
  13  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  *  General Public License for more details.
  16  *
  17  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  18  */
  19
  20 #include <linux/init.h>
  21 #include <linux/module.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/acpi.h>
  24 #include <linux/device.h>
  25 #include <linux/dmi.h>
  26 #include <linux/slab.h>
  27 #include <sound/pcm.h>
  28 #include <sound/pcm_params.h>
  29 #include <sound/soc.h>
  30 #include <sound/jack.h>
  31 #include "../../codecs/rt5640.h"
  32 #include "../atom/sst-atom-controls.h"
  33 #include "../common/sst-acpi.h"
  34
  35 enum {
  36         BYT_RT5640_DMIC1_MAP,
  37         BYT_RT5640_DMIC2_MAP,
  38         BYT_RT5640_IN1_MAP,
  39 };
  40
  41 #define BYT_RT5640_MAP(quirk)   ((quirk) & 0xff)
  42 #define BYT_RT5640_DMIC_EN      BIT(16)
  43 #define BYT_RT5640_MONO_SPEAKER BIT(17)
  44 #define BYT_RT5640_DIFF_MIC     BIT(18) /* defaut is single-ended */
  45 #define BYT_RT5640_SSP2_AIF2     BIT(19) /* default is using AIF1  */
  46 #define BYT_RT5640_SSP0_AIF1     BIT(20)
  47 #define BYT_RT5640_SSP0_AIF2     BIT(21)
  48
  49 static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP |
  50                                         BYT_RT5640_DMIC_EN;
  51
  52 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
  53         SND_SOC_DAPM_HP("Headphone", NULL),
  54         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  55         SND_SOC_DAPM_MIC("Internal Mic", NULL),
  56         SND_SOC_DAPM_SPK("Speaker", NULL),
  57 };
  58
  59 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
  60         {"Headset Mic", NULL, "MICBIAS1"},
  61         {"IN2P", NULL, "Headset Mic"},
  62         {"Headphone", NULL, "HPOL"},
  63         {"Headphone", NULL, "HPOR"},
  64 };
  65
  66 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
  67         {"DMIC1", NULL, "Internal Mic"},
  68 };
  69
  70 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
  71         {"DMIC2", NULL, "Internal Mic"},
  72 };
  73
  74 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
  75         {"Internal Mic", NULL, "MICBIAS1"},
  76         {"IN1P", NULL, "Internal Mic"},
  77 };
  78
  79 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif1_map[] = {
  80         {"ssp2 Tx", NULL, "codec_out0"},
  81         {"ssp2 Tx", NULL, "codec_out1"},
  82         {"codec_in0", NULL, "ssp2 Rx"},
  83         {"codec_in1", NULL, "ssp2 Rx"},
  84
  85         {"AIF1 Playback", NULL, "ssp2 Tx"},
  86         {"ssp2 Rx", NULL, "AIF1 Capture"},
  87 };
  88
  89 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif2_map[] = {
  90         {"ssp2 Tx", NULL, "codec_out0"},
  91         {"ssp2 Tx", NULL, "codec_out1"},
  92         {"codec_in0", NULL, "ssp2 Rx"},
  93         {"codec_in1", NULL, "ssp2 Rx"},
  94
  95         {"AIF2 Playback", NULL, "ssp2 Tx"},
  96         {"ssp2 Rx", NULL, "AIF2 Capture"},
  97 };
  98
  99 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif1_map[] = {
 100         {"ssp0 Tx", NULL, "modem_out"},
 101         {"modem_in", NULL, "ssp0 Rx"},
 102
 103         {"AIF1 Playback", NULL, "ssp0 Tx"},
 104         {"ssp0 Rx", NULL, "AIF1 Capture"},
 105 };
 106
 107 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif2_map[] = {
 108         {"ssp0 Tx", NULL, "modem_out"},
 109         {"modem_in", NULL, "ssp0 Rx"},
 110
 111         {"AIF2 Playback", NULL, "ssp0 Tx"},
 112         {"ssp0 Rx", NULL, "AIF2 Capture"},
 113 };
 114
 115 static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = {
 116         {"Speaker", NULL, "SPOLP"},
 117         {"Speaker", NULL, "SPOLN"},
 118         {"Speaker", NULL, "SPORP"},
 119         {"Speaker", NULL, "SPORN"},
 120 };
 121
 122 static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = {
 123         {"Speaker", NULL, "SPOLP"},
 124         {"Speaker", NULL, "SPOLN"},
 125 };
 126
 127 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
 128         SOC_DAPM_PIN_SWITCH("Headphone"),
 129         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 130         SOC_DAPM_PIN_SWITCH("Internal Mic"),
 131         SOC_DAPM_PIN_SWITCH("Speaker"),
 132 };
 133
 134 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
 135                                         struct snd_pcm_hw_params *params)
 136 {
 137         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 138         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 139         int ret;
 140
 141         ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
 142                                      params_rate(params) * 512,
 143                                      SND_SOC_CLOCK_IN);
 144         if (ret < 0) {
 145                 dev_err(rtd->dev, "can't set codec clock %d\n", ret);
 146                 return ret;
 147         }
 148
 149         if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
 150                 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 151
 152                 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
 153                                         params_rate(params) * 32, /* FIXME */
 154                                         params_rate(params) * 512);
 155         } else {
 156                 ret = snd_soc_dai_set_pll(codec_dai, 0, RT5640_PLL1_S_BCLK1,
 157                                         params_rate(params) * 50,
 158                                         params_rate(params) * 512);
 159         }
 160
 161         if (ret < 0) {
 162                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
 163                 return ret;
 164         }
 165
 166         return 0;
 167 }
 168
 169 static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
 170 {
 171         byt_rt5640_quirk = (unsigned long)id->driver_data;
 172         return 1;
 173 }
 174
 175 static const struct dmi_system_id byt_rt5640_quirk_table[] = {
 176         {
 177                 .callback = byt_rt5640_quirk_cb,
 178                 .matches = {
 179                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 180                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
 181                 },
 182                 .driver_data = (unsigned long *)BYT_RT5640_IN1_MAP,
 183         },
 184         {
 185                 .callback = byt_rt5640_quirk_cb,
 186                 .matches = {
 187                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 188                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"),
 189                 },
 190                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
 191                                                  BYT_RT5640_MONO_SPEAKER |
 192                                                  BYT_RT5640_DIFF_MIC
 193                                                  ),
 194         },
 195         {
 196                 .callback = byt_rt5640_quirk_cb,
 197                 .matches = {
 198                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "DellInc."),
 199                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
 200                 },
 201                 .driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP |
 202                                                  BYT_RT5640_DMIC_EN),
 203         },
 204         {
 205                 .callback = byt_rt5640_quirk_cb,
 206                 .matches = {
 207                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 208                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
 209                 },
 210                 .driver_data = (unsigned long *)BYT_RT5640_IN1_MAP,
 211         },
 212         {}
 213 };
 214
 215 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
 216 {
 217         int ret;
 218         struct snd_soc_codec *codec = runtime->codec;
 219         struct snd_soc_card *card = runtime->card;
 220         const struct snd_soc_dapm_route *custom_map;
 221         int num_routes;
 222
 223         card->dapm.idle_bias_off = true;
 224
 225         rt5640_sel_asrc_clk_src(codec,
 226                                 RT5640_DA_STEREO_FILTER |
 227                                 RT5640_AD_STEREO_FILTER,
 228                                 RT5640_CLK_SEL_ASRC);
 229
 230         ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
 231                                         ARRAY_SIZE(byt_rt5640_controls));
 232         if (ret) {
 233                 dev_err(card->dev, "unable to add card controls\n");
 234                 return ret;
 235         }
 236
 237         switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
 238         case BYT_RT5640_IN1_MAP:
 239                 custom_map = byt_rt5640_intmic_in1_map;
 240                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
 241                 break;
 242         case BYT_RT5640_DMIC2_MAP:
 243                 custom_map = byt_rt5640_intmic_dmic2_map;
 244                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
 245                 break;
 246         default:
 247                 custom_map = byt_rt5640_intmic_dmic1_map;
 248                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
 249         }
 250
 251         ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
 252         if (ret)
 253                 return ret;
 254
 255         if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
 256                 ret = snd_soc_dapm_add_routes(&card->dapm,
 257                                         byt_rt5640_ssp2_aif2_map,
 258                                         ARRAY_SIZE(byt_rt5640_ssp2_aif2_map));
 259         } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
 260                 ret = snd_soc_dapm_add_routes(&card->dapm,
 261                                         byt_rt5640_ssp0_aif1_map,
 262                                         ARRAY_SIZE(byt_rt5640_ssp0_aif1_map));
 263         } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
 264                 ret = snd_soc_dapm_add_routes(&card->dapm,
 265                                         byt_rt5640_ssp0_aif2_map,
 266                                         ARRAY_SIZE(byt_rt5640_ssp0_aif2_map));
 267         } else {
 268                 ret = snd_soc_dapm_add_routes(&card->dapm,
 269                                         byt_rt5640_ssp2_aif1_map,
 270                                         ARRAY_SIZE(byt_rt5640_ssp2_aif1_map));
 271         }
 272         if (ret)
 273                 return ret;
 274
 275         if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) {
 276                 ret = snd_soc_dapm_add_routes(&card->dapm,
 277                                         byt_rt5640_mono_spk_map,
 278                                         ARRAY_SIZE(byt_rt5640_mono_spk_map));
 279         } else {
 280                 ret = snd_soc_dapm_add_routes(&card->dapm,
 281                                         byt_rt5640_stereo_spk_map,
 282                                         ARRAY_SIZE(byt_rt5640_stereo_spk_map));
 283         }
 284         if (ret)
 285                 return ret;
 286
 287         if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) {
 288                 snd_soc_update_bits(codec,  RT5640_IN1_IN2, RT5640_IN_DF1,
 289                                     RT5640_IN_DF1);
 290         }
 291
 292         if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
 293                 ret = rt5640_dmic_enable(codec, 0, 0);
 294                 if (ret)
 295                         return ret;
 296         }
 297
 298         snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
 299         snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
 300
 301         return ret;
 302 }
 303
 304 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
 305         .formats = SNDRV_PCM_FMTBIT_S24_LE,
 306         .rate_min = 48000,
 307         .rate_max = 48000,
 308         .channels_min = 2,
 309         .channels_max = 2,
 310 };
 311
 312 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 313                             struct snd_pcm_hw_params *params)
 314 {
 315         struct snd_interval *rate = hw_param_interval(params,
 316                         SNDRV_PCM_HW_PARAM_RATE);
 317         struct snd_interval *channels = hw_param_interval(params,
 318                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 319         int ret;
 320
 321         /* The DSP will covert the FE rate to 48k, stereo */
 322         rate->min = rate->max = 48000;
 323         channels->min = channels->max = 2;
 324
 325         if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
 326                 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 327
 328                 /* set SSP2 to 16-bit */
 329                 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 330
 331                 /*
 332                  * Default mode for SSP configuration is TDM 4 slot, override config
 333                  * with explicit setting to I2S 2ch 16-bit. The word length is set with
 334                  * dai_set_tdm_slot() since there is no other API exposed
 335                  */
 336                 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
 337                                         SND_SOC_DAIFMT_I2S     |
 338                                         SND_SOC_DAIFMT_NB_IF   |
 339                                         SND_SOC_DAIFMT_CBS_CFS
 340                         );
 341                 if (ret < 0) {
 342                         dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 343                         return ret;
 344                 }
 345
 346                 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
 347                 if (ret < 0) {
 348                         dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
 349                         return ret;
 350                 }
 351
 352         } else {
 353
 354                 /* set SSP2 to 24-bit */
 355                 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 356
 357                 /*
 358                  * Default mode for SSP configuration is TDM 4 slot, override config
 359                  * with explicit setting to I2S 2ch 24-bit. The word length is set with
 360                  * dai_set_tdm_slot() since there is no other API exposed
 361                  */
 362                 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
 363                                         SND_SOC_DAIFMT_I2S     |
 364                                         SND_SOC_DAIFMT_NB_IF   |
 365                                         SND_SOC_DAIFMT_CBS_CFS
 366                         );
 367                 if (ret < 0) {
 368                         dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 369                         return ret;
 370                 }
 371
 372                 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
 373                 if (ret < 0) {
 374                         dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
 375                         return ret;
 376                 }
 377         }
 378         return 0;
 379 }
 380
 381 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
 382 {
 383         return snd_pcm_hw_constraint_single(substream->runtime,
 384                         SNDRV_PCM_HW_PARAM_RATE, 48000);
 385 }
 386
 387 static struct snd_soc_ops byt_rt5640_aif1_ops = {
 388         .startup = byt_rt5640_aif1_startup,
 389 };
 390
 391 static struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
 392         .hw_params = byt_rt5640_aif1_hw_params,
 393 };
 394
 395 static struct snd_soc_dai_link byt_rt5640_dais[] = {
 396         [MERR_DPCM_AUDIO] = {
 397                 .name = "Baytrail Audio Port",
 398                 .stream_name = "Baytrail Audio",
 399                 .cpu_dai_name = "media-cpu-dai",
 400                 .codec_dai_name = "snd-soc-dummy-dai",
 401                 .codec_name = "snd-soc-dummy",
 402                 .platform_name = "sst-mfld-platform",
 403                 .ignore_suspend = 1,
 404                 .dynamic = 1,
 405                 .dpcm_playback = 1,
 406                 .dpcm_capture = 1,
 407                 .ops = &byt_rt5640_aif1_ops,
 408         },
 409         [MERR_DPCM_DEEP_BUFFER] = {
 410                 .name = "Deep-Buffer Audio Port",
 411                 .stream_name = "Deep-Buffer Audio",
 412                 .cpu_dai_name = "deepbuffer-cpu-dai",
 413                 .codec_dai_name = "snd-soc-dummy-dai",
 414                 .codec_name = "snd-soc-dummy",
 415                 .platform_name = "sst-mfld-platform",
 416                 .ignore_suspend = 1,
 417                 .nonatomic = true,
 418                 .dynamic = 1,
 419                 .dpcm_playback = 1,
 420                 .ops = &byt_rt5640_aif1_ops,
 421         },
 422         [MERR_DPCM_COMPR] = {
 423                 .name = "Baytrail Compressed Port",
 424                 .stream_name = "Baytrail Compress",
 425                 .cpu_dai_name = "compress-cpu-dai",
 426                 .codec_dai_name = "snd-soc-dummy-dai",
 427                 .codec_name = "snd-soc-dummy",
 428                 .platform_name = "sst-mfld-platform",
 429         },
 430                 /* back ends */
 431         {
 432                 .name = "SSP2-Codec",
 433                 .id = 1,
 434                 .cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */
 435                 .platform_name = "sst-mfld-platform",
 436                 .no_pcm = 1,
 437                 .codec_dai_name = "rt5640-aif1", /* changed w/ quirk */
 438                 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */
 439                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 440                                                 | SND_SOC_DAIFMT_CBS_CFS,
 441                 .be_hw_params_fixup = byt_rt5640_codec_fixup,
 442                 .ignore_suspend = 1,
 443                 .dpcm_playback = 1,
 444                 .dpcm_capture = 1,
 445                 .init = byt_rt5640_init,
 446                 .ops = &byt_rt5640_be_ssp2_ops,
 447         },
 448 };
 449
 450 /* SoC card */
 451 static struct snd_soc_card byt_rt5640_card = {
 452         .name = "bytcr-rt5640",
 453         .owner = THIS_MODULE,
 454         .dai_link = byt_rt5640_dais,
 455         .num_links = ARRAY_SIZE(byt_rt5640_dais),
 456         .dapm_widgets = byt_rt5640_widgets,
 457         .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
 458         .dapm_routes = byt_rt5640_audio_map,
 459         .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
 460         .fully_routed = true,
 461 };
 462
 463 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
 464 static char byt_rt5640_codec_aif_name[12]; /*  = "rt5640-aif[1|2]" */
 465 static char byt_rt5640_cpu_dai_name[10]; /*  = "ssp[0|2]-port" */
 466
 467 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
 468 {
 469         int ret_val = 0;
 470         struct sst_acpi_mach *mach;
 471         const char *i2c_name = NULL;
 472         int i;
 473         int dai_index;
 474
 475         /* register the soc card */
 476         byt_rt5640_card.dev = &pdev->dev;
 477         mach = byt_rt5640_card.dev->platform_data;
 478
 479         /* fix index of codec dai */
 480         dai_index = MERR_DPCM_COMPR + 1;
 481         for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
 482                 if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
 483                         dai_index = i;
 484                         break;
 485                 }
 486         }
 487
 488         /* fixup codec name based on HID */
 489         i2c_name = sst_acpi_find_name_from_hid(mach->id);
 490         if (i2c_name != NULL) {
 491                 snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
 492                         "%s%s", "i2c-", i2c_name);
 493
 494                 byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
 495         }
 496
 497         /* check quirks before creating card */
 498         dmi_check_system(byt_rt5640_quirk_table);
 499
 500         if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) ||
 501             (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 502
 503                 /* fixup codec aif name */
 504                 snprintf(byt_rt5640_codec_aif_name,
 505                         sizeof(byt_rt5640_codec_aif_name),
 506                         "%s", "rt5640-aif2");
 507
 508                 byt_rt5640_dais[dai_index].codec_dai_name =
 509                         byt_rt5640_codec_aif_name;
 510         }
 511
 512         if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
 513             (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 514
 515                 /* fixup cpu dai name name */
 516                 snprintf(byt_rt5640_cpu_dai_name,
 517                         sizeof(byt_rt5640_cpu_dai_name),
 518                         "%s", "ssp0-port");
 519
 520                 byt_rt5640_dais[dai_index].cpu_dai_name =
 521                         byt_rt5640_cpu_dai_name;
 522         }
 523
 524         ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
 525
 526         if (ret_val) {
 527                 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
 528                         ret_val);
 529                 return ret_val;
 530         }
 531         platform_set_drvdata(pdev, &byt_rt5640_card);
 532         return ret_val;
 533 }
 534
 535 static struct platform_driver snd_byt_rt5640_mc_driver = {
 536         .driver = {
 537                 .name = "bytcr_rt5640",
 538                 .pm = &snd_soc_pm_ops,
 539         },
 540         .probe = snd_byt_rt5640_mc_probe,
 541 };
 542
 543 module_platform_driver(snd_byt_rt5640_mc_driver);
 544
 545 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
 546 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
 547 MODULE_LICENSE("GPL v2");
 548 MODULE_ALIAS("platform:bytcr_rt5640");