sound/soc/intel/boards/bxt_da7219_max98357a.c

   1 /*
   2  * Intel Broxton-P I2S Machine Driver
   3  *
   4  * Copyright (C) 2016, Intel Corporation. All rights reserved.
   5  *
   6  * Modified from:
   7  *   Intel Skylake I2S Machine driver
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License version
  11  * 2 as published by the Free Software Foundation.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  */
  18
  19 #include <linux/module.h>
  20 #include <linux/platform_device.h>
  21 #include <sound/core.h>
  22 #include <sound/jack.h>
  23 #include <sound/pcm.h>
  24 #include <sound/pcm_params.h>
  25 #include <sound/soc.h>
  26 #include "../../codecs/hdac_hdmi.h"
  27 #include "../../codecs/da7219.h"
  28 #include "../../codecs/da7219-aad.h"
  29
  30 #define BXT_DIALOG_CODEC_DAI    "da7219-hifi"
  31 #define BXT_MAXIM_CODEC_DAI     "HiFi"
  32 #define DUAL_CHANNEL            2
  33 #define QUAD_CHANNEL            4
  34
  35 static struct snd_soc_jack broxton_headset;
  36 static struct snd_soc_jack broxton_hdmi[3];
  37
  38 struct bxt_hdmi_pcm {
  39         struct list_head head;
  40         struct snd_soc_dai *codec_dai;
  41         int device;
  42 };
  43
  44 struct bxt_card_private {
  45         struct list_head hdmi_pcm_list;
  46 };
  47
  48 enum {
  49         BXT_DPCM_AUDIO_PB = 0,
  50         BXT_DPCM_AUDIO_CP,
  51         BXT_DPCM_AUDIO_REF_CP,
  52         BXT_DPCM_AUDIO_DMIC_CP,
  53         BXT_DPCM_AUDIO_HDMI1_PB,
  54         BXT_DPCM_AUDIO_HDMI2_PB,
  55         BXT_DPCM_AUDIO_HDMI3_PB,
  56 };
  57
  58 static inline struct snd_soc_dai *bxt_get_codec_dai(struct snd_soc_card *card)
  59 {
  60         struct snd_soc_pcm_runtime *rtd;
  61
  62         list_for_each_entry(rtd, &card->rtd_list, list) {
  63
  64                 if (!strncmp(rtd->codec_dai->name, BXT_DIALOG_CODEC_DAI,
  65                              strlen(BXT_DIALOG_CODEC_DAI)))
  66                         return rtd->codec_dai;
  67         }
  68
  69         return NULL;
  70 }
  71
  72 static int platform_clock_control(struct snd_soc_dapm_widget *w,
  73         struct snd_kcontrol *k, int  event)
  74 {
  75         int ret = 0;
  76         struct snd_soc_dapm_context *dapm = w->dapm;
  77         struct snd_soc_card *card = dapm->card;
  78         struct snd_soc_dai *codec_dai;
  79
  80         codec_dai = bxt_get_codec_dai(card);
  81         if (!codec_dai) {
  82                 dev_err(card->dev, "Codec dai not found; Unable to set/unset codec pll\n");
  83                 return -EIO;
  84         }
  85
  86         if (SND_SOC_DAPM_EVENT_OFF(event)) {
  87                 ret = snd_soc_dai_set_pll(codec_dai, 0,
  88                         DA7219_SYSCLK_MCLK, 0, 0);
  89                 if (ret)
  90                         dev_err(card->dev, "failed to stop PLL: %d\n", ret);
  91         } else if(SND_SOC_DAPM_EVENT_ON(event)) {
  92                 ret = snd_soc_dai_set_pll(codec_dai, 0,
  93                         DA7219_SYSCLK_PLL_SRM, 0, DA7219_PLL_FREQ_OUT_98304);
  94                 if (ret)
  95                         dev_err(card->dev, "failed to start PLL: %d\n", ret);
  96         }
  97
  98         return ret;
  99 }
 100
 101 static const struct snd_kcontrol_new broxton_controls[] = {
 102         SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 103         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 104         SOC_DAPM_PIN_SWITCH("Spk"),
 105 };
 106
 107 static const struct snd_soc_dapm_widget broxton_widgets[] = {
 108         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 109         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 110         SND_SOC_DAPM_SPK("Spk", NULL),
 111         SND_SOC_DAPM_MIC("SoC DMIC", NULL),
 112         SND_SOC_DAPM_SPK("HDMI1", NULL),
 113         SND_SOC_DAPM_SPK("HDMI2", NULL),
 114         SND_SOC_DAPM_SPK("HDMI3", NULL),
 115         SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
 116                         platform_clock_control, SND_SOC_DAPM_POST_PMD|SND_SOC_DAPM_PRE_PMU),
 117 };
 118
 119 static const struct snd_soc_dapm_route broxton_map[] = {
 120         /* HP jack connectors - unknown if we have jack detection */
 121         {"Headphone Jack", NULL, "HPL"},
 122         {"Headphone Jack", NULL, "HPR"},
 123
 124         /* speaker */
 125         {"Spk", NULL, "Speaker"},
 126
 127         /* other jacks */
 128         {"MIC", NULL, "Headset Mic"},
 129
 130         /* digital mics */
 131         {"DMic", NULL, "SoC DMIC"},
 132
 133         /* CODEC BE connections */
 134         {"HiFi Playback", NULL, "ssp5 Tx"},
 135         {"ssp5 Tx", NULL, "codec0_out"},
 136
 137         {"Playback", NULL, "ssp1 Tx"},
 138         {"ssp1 Tx", NULL, "codec1_out"},
 139
 140         {"codec0_in", NULL, "ssp1 Rx"},
 141         {"ssp1 Rx", NULL, "Capture"},
 142
 143         {"HDMI1", NULL, "hif5-0 Output"},
 144         {"HDMI2", NULL, "hif6-0 Output"},
 145         {"HDMI2", NULL, "hif7-0 Output"},
 146
 147         {"hifi3", NULL, "iDisp3 Tx"},
 148         {"iDisp3 Tx", NULL, "iDisp3_out"},
 149         {"hifi2", NULL, "iDisp2 Tx"},
 150         {"iDisp2 Tx", NULL, "iDisp2_out"},
 151         {"hifi1", NULL, "iDisp1 Tx"},
 152         {"iDisp1 Tx", NULL, "iDisp1_out"},
 153
 154         /* DMIC */
 155         {"dmic01_hifi", NULL, "DMIC01 Rx"},
 156         {"DMIC01 Rx", NULL, "DMIC AIF"},
 157
 158         { "Headphone Jack", NULL, "Platform Clock" },
 159         { "Headset Mic", NULL, "Platform Clock" },
 160 };
 161
 162 static int broxton_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
 163                         struct snd_pcm_hw_params *params)
 164 {
 165         struct snd_interval *rate = hw_param_interval(params,
 166                         SNDRV_PCM_HW_PARAM_RATE);
 167         struct snd_interval *channels = hw_param_interval(params,
 168                         SNDRV_PCM_HW_PARAM_CHANNELS);
 169         struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 170
 171         /* The ADSP will convert the FE rate to 48k, stereo */
 172         rate->min = rate->max = 48000;
 173         channels->min = channels->max = DUAL_CHANNEL;
 174
 175         /* set SSP to 24 bit */
 176         snd_mask_none(fmt);
 177         snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE);
 178
 179         return 0;
 180 }
 181
 182 static int broxton_da7219_codec_init(struct snd_soc_pcm_runtime *rtd)
 183 {
 184         int ret;
 185         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 186         struct snd_soc_codec *codec = rtd->codec;
 187
 188         /* Configure sysclk for codec */
 189         ret = snd_soc_dai_set_sysclk(codec_dai, DA7219_CLKSRC_MCLK, 19200000,
 190                                      SND_SOC_CLOCK_IN);
 191         if (ret) {
 192                 dev_err(rtd->dev, "can't set codec sysclk configuration\n");
 193                 return ret;
 194         }
 195
 196         /*
 197          * Headset buttons map to the google Reference headset.
 198          * These can be configured by userspace.
 199          */
 200         ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
 201                         SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 202                         SND_JACK_BTN_2 | SND_JACK_BTN_3 | SND_JACK_LINEOUT,
 203                         &broxton_headset, NULL, 0);
 204         if (ret) {
 205                 dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
 206                 return ret;
 207         }
 208
 209         da7219_aad_jack_det(codec, &broxton_headset);
 210
 211         snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");
 212
 213         return ret;
 214 }
 215
 216 static int broxton_hdmi_init(struct snd_soc_pcm_runtime *rtd)
 217 {
 218         struct bxt_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
 219         struct snd_soc_dai *dai = rtd->codec_dai;
 220         struct bxt_hdmi_pcm *pcm;
 221
 222         pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
 223         if (!pcm)
 224                 return -ENOMEM;
 225
 226         pcm->device = BXT_DPCM_AUDIO_HDMI1_PB + dai->id;
 227         pcm->codec_dai = dai;
 228
 229         list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
 230
 231         return 0;
 232 }
 233
 234 static int broxton_da7219_fe_init(struct snd_soc_pcm_runtime *rtd)
 235 {
 236         struct snd_soc_dapm_context *dapm;
 237         struct snd_soc_component *component = rtd->cpu_dai->component;
 238
 239         dapm = snd_soc_component_get_dapm(component);
 240         snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
 241
 242         return 0;
 243 }
 244
 245 static const unsigned int rates[] = {
 246         48000,
 247 };
 248
 249 static const struct snd_pcm_hw_constraint_list constraints_rates = {
 250         .count = ARRAY_SIZE(rates),
 251         .list  = rates,
 252         .mask = 0,
 253 };
 254
 255 static const unsigned int channels[] = {
 256         DUAL_CHANNEL,
 257 };
 258
 259 static const struct snd_pcm_hw_constraint_list constraints_channels = {
 260         .count = ARRAY_SIZE(channels),
 261         .list = channels,
 262         .mask = 0,
 263 };
 264
 265 static const unsigned int channels_quad[] = {
 266         QUAD_CHANNEL,
 267 };
 268
 269 static const struct snd_pcm_hw_constraint_list constraints_channels_quad = {
 270         .count = ARRAY_SIZE(channels_quad),
 271         .list = channels_quad,
 272         .mask = 0,
 273 };
 274
 275 static int bxt_fe_startup(struct snd_pcm_substream *substream)
 276 {
 277         struct snd_pcm_runtime *runtime = substream->runtime;
 278
 279         /*
 280          * On this platform for PCM device we support,
 281          * 48Khz
 282          * stereo
 283          * 16 bit audio
 284          */
 285
 286         runtime->hw.channels_max = DUAL_CHANNEL;
 287         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 288                                            &constraints_channels);
 289
 290         runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
 291         snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
 292
 293         snd_pcm_hw_constraint_list(runtime, 0,
 294                                 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
 295
 296         return 0;
 297 }
 298
 299 static const struct snd_soc_ops broxton_da7219_fe_ops = {
 300         .startup = bxt_fe_startup,
 301 };
 302
 303 static int broxton_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
 304                         struct snd_pcm_hw_params *params)
 305 {
 306         struct snd_interval *channels = hw_param_interval(params,
 307                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 308         if (params_channels(params) == 2)
 309                 channels->min = channels->max = 2;
 310         else
 311                 channels->min = channels->max = 4;
 312
 313         return 0;
 314 }
 315
 316 static int broxton_dmic_startup(struct snd_pcm_substream *substream)
 317 {
 318         struct snd_pcm_runtime *runtime = substream->runtime;
 319
 320         runtime->hw.channels_min = runtime->hw.channels_max = QUAD_CHANNEL;
 321         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 322                         &constraints_channels_quad);
 323
 324         return snd_pcm_hw_constraint_list(substream->runtime, 0,
 325                         SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
 326 }
 327
 328 static const struct snd_soc_ops broxton_dmic_ops = {
 329         .startup = broxton_dmic_startup,
 330 };
 331
 332 static const unsigned int rates_16000[] = {
 333         16000,
 334 };
 335
 336 static const struct snd_pcm_hw_constraint_list constraints_16000 = {
 337         .count = ARRAY_SIZE(rates_16000),
 338         .list  = rates_16000,
 339 };
 340
 341 static int broxton_refcap_startup(struct snd_pcm_substream *substream)
 342 {
 343         return snd_pcm_hw_constraint_list(substream->runtime, 0,
 344                         SNDRV_PCM_HW_PARAM_RATE,
 345                         &constraints_16000);
 346 };
 347
 348 static const struct snd_soc_ops broxton_refcap_ops = {
 349         .startup = broxton_refcap_startup,
 350 };
 351
 352 /* broxton digital audio interface glue - connects codec <--> CPU */
 353 static struct snd_soc_dai_link broxton_dais[] = {
 354         /* Front End DAI links */
 355         [BXT_DPCM_AUDIO_PB] =
 356         {
 357                 .name = "Bxt Audio Port",
 358                 .stream_name = "Audio",
 359                 .cpu_dai_name = "System Pin",
 360                 .platform_name = "0000:00:0e.0",
 361                 .dynamic = 1,
 362                 .codec_name = "snd-soc-dummy",
 363                 .codec_dai_name = "snd-soc-dummy-dai",
 364                 .nonatomic = 1,
 365                 .init = broxton_da7219_fe_init,
 366                 .trigger = {
 367                         SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 368                 .dpcm_playback = 1,
 369                 .ops = &broxton_da7219_fe_ops,
 370         },
 371         [BXT_DPCM_AUDIO_CP] =
 372         {
 373                 .name = "Bxt Audio Capture Port",
 374                 .stream_name = "Audio Record",
 375                 .cpu_dai_name = "System Pin",
 376                 .platform_name = "0000:00:0e.0",
 377                 .dynamic = 1,
 378                 .codec_name = "snd-soc-dummy",
 379                 .codec_dai_name = "snd-soc-dummy-dai",
 380                 .nonatomic = 1,
 381                 .trigger = {
 382                         SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 383                 .dpcm_capture = 1,
 384                 .ops = &broxton_da7219_fe_ops,
 385         },
 386         [BXT_DPCM_AUDIO_REF_CP] =
 387         {
 388                 .name = "Bxt Audio Reference cap",
 389                 .stream_name = "Refcap",
 390                 .cpu_dai_name = "Reference Pin",
 391                 .codec_name = "snd-soc-dummy",
 392                 .codec_dai_name = "snd-soc-dummy-dai",
 393                 .platform_name = "0000:00:0e.0",
 394                 .init = NULL,
 395                 .dpcm_capture = 1,
 396                 .nonatomic = 1,
 397                 .dynamic = 1,
 398                 .ops = &broxton_refcap_ops,
 399         },
 400         [BXT_DPCM_AUDIO_DMIC_CP] =
 401         {
 402                 .name = "Bxt Audio DMIC cap",
 403                 .stream_name = "dmiccap",
 404                 .cpu_dai_name = "DMIC Pin",
 405                 .codec_name = "snd-soc-dummy",
 406                 .codec_dai_name = "snd-soc-dummy-dai",
 407                 .platform_name = "0000:00:0e.0",
 408                 .init = NULL,
 409                 .dpcm_capture = 1,
 410                 .nonatomic = 1,
 411                 .dynamic = 1,
 412                 .ops = &broxton_dmic_ops,
 413         },
 414         [BXT_DPCM_AUDIO_HDMI1_PB] =
 415         {
 416                 .name = "Bxt HDMI Port1",
 417                 .stream_name = "Hdmi1",
 418                 .cpu_dai_name = "HDMI1 Pin",
 419                 .codec_name = "snd-soc-dummy",
 420                 .codec_dai_name = "snd-soc-dummy-dai",
 421                 .platform_name = "0000:00:0e.0",
 422                 .dpcm_playback = 1,
 423                 .init = NULL,
 424                 .nonatomic = 1,
 425                 .dynamic = 1,
 426         },
 427         [BXT_DPCM_AUDIO_HDMI2_PB] =
 428         {
 429                 .name = "Bxt HDMI Port2",
 430                 .stream_name = "Hdmi2",
 431                 .cpu_dai_name = "HDMI2 Pin",
 432                 .codec_name = "snd-soc-dummy",
 433                 .codec_dai_name = "snd-soc-dummy-dai",
 434                 .platform_name = "0000:00:0e.0",
 435                 .dpcm_playback = 1,
 436                 .init = NULL,
 437                 .nonatomic = 1,
 438                 .dynamic = 1,
 439         },
 440         [BXT_DPCM_AUDIO_HDMI3_PB] =
 441         {
 442                 .name = "Bxt HDMI Port3",
 443                 .stream_name = "Hdmi3",
 444                 .cpu_dai_name = "HDMI3 Pin",
 445                 .codec_name = "snd-soc-dummy",
 446                 .codec_dai_name = "snd-soc-dummy-dai",
 447                 .platform_name = "0000:00:0e.0",
 448                 .dpcm_playback = 1,
 449                 .init = NULL,
 450                 .nonatomic = 1,
 451                 .dynamic = 1,
 452         },
 453         /* Back End DAI links */
 454         {
 455                 /* SSP5 - Codec */
 456                 .name = "SSP5-Codec",
 457                 .id = 0,
 458                 .cpu_dai_name = "SSP5 Pin",
 459                 .platform_name = "0000:00:0e.0",
 460                 .no_pcm = 1,
 461                 .codec_name = "MX98357A:00",
 462                 .codec_dai_name = BXT_MAXIM_CODEC_DAI,
 463                 .dai_fmt = SND_SOC_DAIFMT_I2S |
 464                         SND_SOC_DAIFMT_NB_NF |
 465                         SND_SOC_DAIFMT_CBS_CFS,
 466                 .ignore_pmdown_time = 1,
 467                 .be_hw_params_fixup = broxton_ssp_fixup,
 468                 .dpcm_playback = 1,
 469         },
 470         {
 471                 /* SSP1 - Codec */
 472                 .name = "SSP1-Codec",
 473                 .id = 1,
 474                 .cpu_dai_name = "SSP1 Pin",
 475                 .platform_name = "0000:00:0e.0",
 476                 .no_pcm = 1,
 477                 .codec_name = "i2c-DLGS7219:00",
 478                 .codec_dai_name = BXT_DIALOG_CODEC_DAI,
 479                 .init = broxton_da7219_codec_init,
 480                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 481                         SND_SOC_DAIFMT_CBS_CFS,
 482                 .ignore_pmdown_time = 1,
 483                 .be_hw_params_fixup = broxton_ssp_fixup,
 484                 .dpcm_playback = 1,
 485                 .dpcm_capture = 1,
 486         },
 487         {
 488                 .name = "dmic01",
 489                 .id = 2,
 490                 .cpu_dai_name = "DMIC01 Pin",
 491                 .codec_name = "dmic-codec",
 492                 .codec_dai_name = "dmic-hifi",
 493                 .platform_name = "0000:00:0e.0",
 494                 .ignore_suspend = 1,
 495                 .be_hw_params_fixup = broxton_dmic_fixup,
 496                 .dpcm_capture = 1,
 497                 .no_pcm = 1,
 498         },
 499         {
 500                 .name = "iDisp1",
 501                 .id = 3,
 502                 .cpu_dai_name = "iDisp1 Pin",
 503                 .codec_name = "ehdaudio0D2",
 504                 .codec_dai_name = "intel-hdmi-hifi1",
 505                 .platform_name = "0000:00:0e.0",
 506                 .init = broxton_hdmi_init,
 507                 .dpcm_playback = 1,
 508                 .no_pcm = 1,
 509         },
 510         {
 511                 .name = "iDisp2",
 512                 .id = 4,
 513                 .cpu_dai_name = "iDisp2 Pin",
 514                 .codec_name = "ehdaudio0D2",
 515                 .codec_dai_name = "intel-hdmi-hifi2",
 516                 .platform_name = "0000:00:0e.0",
 517                 .init = broxton_hdmi_init,
 518                 .dpcm_playback = 1,
 519                 .no_pcm = 1,
 520         },
 521         {
 522                 .name = "iDisp3",
 523                 .id = 5,
 524                 .cpu_dai_name = "iDisp3 Pin",
 525                 .codec_name = "ehdaudio0D2",
 526                 .codec_dai_name = "intel-hdmi-hifi3",
 527                 .platform_name = "0000:00:0e.0",
 528                 .init = broxton_hdmi_init,
 529                 .dpcm_playback = 1,
 530                 .no_pcm = 1,
 531         },
 532 };
 533
 534 #define NAME_SIZE       32
 535 static int bxt_card_late_probe(struct snd_soc_card *card)
 536 {
 537         struct bxt_card_private *ctx = snd_soc_card_get_drvdata(card);
 538         struct bxt_hdmi_pcm *pcm;
 539         struct snd_soc_codec *codec = NULL;
 540         int err, i = 0;
 541         char jack_name[NAME_SIZE];
 542
 543         list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
 544                 codec = pcm->codec_dai->codec;
 545                 snprintf(jack_name, sizeof(jack_name),
 546                         "HDMI/DP, pcm=%d Jack", pcm->device);
 547                 err = snd_soc_card_jack_new(card, jack_name,
 548                                         SND_JACK_AVOUT, &broxton_hdmi[i],
 549                                         NULL, 0);
 550
 551                 if (err)
 552                         return err;
 553
 554                 err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
 555                                                 &broxton_hdmi[i]);
 556                 if (err < 0)
 557                         return err;
 558
 559                 i++;
 560         }
 561
 562         if (!codec)
 563                 return -EINVAL;
 564
 565         return hdac_hdmi_jack_port_init(codec, &card->dapm);
 566 }
 567
 568 /* broxton audio machine driver for SPT + da7219 */
 569 static struct snd_soc_card broxton_audio_card = {
 570         .name = "bxtda7219max",
 571         .owner = THIS_MODULE,
 572         .dai_link = broxton_dais,
 573         .num_links = ARRAY_SIZE(broxton_dais),
 574         .controls = broxton_controls,
 575         .num_controls = ARRAY_SIZE(broxton_controls),
 576         .dapm_widgets = broxton_widgets,
 577         .num_dapm_widgets = ARRAY_SIZE(broxton_widgets),
 578         .dapm_routes = broxton_map,
 579         .num_dapm_routes = ARRAY_SIZE(broxton_map),
 580         .fully_routed = true,
 581         .late_probe = bxt_card_late_probe,
 582 };
 583
 584 static int broxton_audio_probe(struct platform_device *pdev)
 585 {
 586         struct bxt_card_private *ctx;
 587
 588         ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC);
 589         if (!ctx)
 590                 return -ENOMEM;
 591
 592         INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
 593
 594         broxton_audio_card.dev = &pdev->dev;
 595         snd_soc_card_set_drvdata(&broxton_audio_card, ctx);
 596
 597         return devm_snd_soc_register_card(&pdev->dev, &broxton_audio_card);
 598 }
 599
 600 static struct platform_driver broxton_audio = {
 601         .probe = broxton_audio_probe,
 602         .driver = {
 603                 .name = "bxt_da7219_max98357a_i2s",
 604                 .pm = &snd_soc_pm_ops,
 605         },
 606 };
 607 module_platform_driver(broxton_audio)
 608
 609 /* Module information */
 610 MODULE_DESCRIPTION("Audio Machine driver-DA7219 & MAX98357A in I2S mode");
 611 MODULE_AUTHOR("Sathyanarayana Nujella <sathyanarayana.nujella@intel.com>");
 612 MODULE_AUTHOR("Rohit Ainapure <rohit.m.ainapure@intel.com>");
 613 MODULE_AUTHOR("Harsha Priya <harshapriya.n@intel.com>");
 614 MODULE_AUTHOR("Conrad Cooke <conrad.cooke@intel.com>");
 615 MODULE_LICENSE("GPL v2");
 616 MODULE_ALIAS("platform:bxt_da7219_max98357a_i2s");