sound/soc/intel/boards/bxt_rt298.c

   1 /*
   2  * Intel Broxton-P I2S Machine Driver
   3  *
   4  * Copyright (C) 2014-2016, 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/pcm.h>
  23 #include <sound/soc.h>
  24 #include <sound/jack.h>
  25 #include <sound/pcm_params.h>
  26 #include "../../codecs/hdac_hdmi.h"
  27 #include "../../codecs/rt298.h"
  28
  29 /* Headset jack detection DAPM pins */
  30 static struct snd_soc_jack broxton_headset;
  31 static struct snd_soc_jack broxton_hdmi[3];
  32
  33 struct bxt_hdmi_pcm {
  34         struct list_head head;
  35         struct snd_soc_dai *codec_dai;
  36         int device;
  37 };
  38
  39 struct bxt_rt286_private {
  40         struct list_head hdmi_pcm_list;
  41 };
  42
  43 enum {
  44         BXT_DPCM_AUDIO_PB = 0,
  45         BXT_DPCM_AUDIO_CP,
  46         BXT_DPCM_AUDIO_REF_CP,
  47         BXT_DPCM_AUDIO_DMIC_CP,
  48         BXT_DPCM_AUDIO_HDMI1_PB,
  49         BXT_DPCM_AUDIO_HDMI2_PB,
  50         BXT_DPCM_AUDIO_HDMI3_PB,
  51 };
  52
  53 static struct snd_soc_jack_pin broxton_headset_pins[] = {
  54         {
  55                 .pin = "Mic Jack",
  56                 .mask = SND_JACK_MICROPHONE,
  57         },
  58         {
  59                 .pin = "Headphone Jack",
  60                 .mask = SND_JACK_HEADPHONE,
  61         },
  62 };
  63
  64 static const struct snd_kcontrol_new broxton_controls[] = {
  65         SOC_DAPM_PIN_SWITCH("Speaker"),
  66         SOC_DAPM_PIN_SWITCH("Headphone Jack"),
  67         SOC_DAPM_PIN_SWITCH("Mic Jack"),
  68 };
  69
  70 static const struct snd_soc_dapm_widget broxton_widgets[] = {
  71         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  72         SND_SOC_DAPM_SPK("Speaker", NULL),
  73         SND_SOC_DAPM_MIC("Mic Jack", NULL),
  74         SND_SOC_DAPM_MIC("DMIC2", NULL),
  75         SND_SOC_DAPM_MIC("SoC DMIC", NULL),
  76         SND_SOC_DAPM_SPK("HDMI1", NULL),
  77         SND_SOC_DAPM_SPK("HDMI2", NULL),
  78         SND_SOC_DAPM_SPK("HDMI3", NULL),
  79 };
  80
  81 static const struct snd_soc_dapm_route broxton_rt298_map[] = {
  82         /* speaker */
  83         {"Speaker", NULL, "SPOR"},
  84         {"Speaker", NULL, "SPOL"},
  85
  86         /* HP jack connectors - unknown if we have jack detect */
  87         {"Headphone Jack", NULL, "HPO Pin"},
  88
  89         /* other jacks */
  90         {"MIC1", NULL, "Mic Jack"},
  91
  92         /* digital mics */
  93         {"DMIC1 Pin", NULL, "DMIC2"},
  94         {"DMic", NULL, "SoC DMIC"},
  95
  96         {"HDMI1", NULL, "hif5-0 Output"},
  97         {"HDMI2", NULL, "hif6-0 Output"},
  98         {"HDMI2", NULL, "hif7-0 Output"},
  99
 100         /* CODEC BE connections */
 101         { "AIF1 Playback", NULL, "ssp5 Tx"},
 102         { "ssp5 Tx", NULL, "codec0_out"},
 103         { "ssp5 Tx", NULL, "codec1_out"},
 104
 105         { "codec0_in", NULL, "ssp5 Rx" },
 106         { "ssp5 Rx", NULL, "AIF1 Capture" },
 107
 108         { "dmic01_hifi", NULL, "DMIC01 Rx" },
 109         { "DMIC01 Rx", NULL, "Capture" },
 110
 111         { "hifi3", NULL, "iDisp3 Tx"},
 112         { "iDisp3 Tx", NULL, "iDisp3_out"},
 113         { "hifi2", NULL, "iDisp2 Tx"},
 114         { "iDisp2 Tx", NULL, "iDisp2_out"},
 115         { "hifi1", NULL, "iDisp1 Tx"},
 116         { "iDisp1 Tx", NULL, "iDisp1_out"},
 117 };
 118
 119 static const struct snd_soc_dapm_route geminilake_rt298_map[] = {
 120         /* speaker */
 121         {"Speaker", NULL, "SPOR"},
 122         {"Speaker", NULL, "SPOL"},
 123
 124         /* HP jack connectors - unknown if we have jack detect */
 125         {"Headphone Jack", NULL, "HPO Pin"},
 126
 127         /* other jacks */
 128         {"MIC1", NULL, "Mic Jack"},
 129
 130         /* digital mics */
 131         {"DMIC1 Pin", NULL, "DMIC2"},
 132         {"DMic", NULL, "SoC DMIC"},
 133
 134         {"HDMI1", NULL, "hif5-0 Output"},
 135         {"HDMI2", NULL, "hif6-0 Output"},
 136         {"HDMI2", NULL, "hif7-0 Output"},
 137
 138         /* CODEC BE connections */
 139         { "AIF1 Playback", NULL, "ssp2 Tx"},
 140         { "ssp2 Tx", NULL, "codec0_out"},
 141         { "ssp2 Tx", NULL, "codec1_out"},
 142
 143         { "codec0_in", NULL, "ssp2 Rx" },
 144         { "ssp2 Rx", NULL, "AIF1 Capture" },
 145
 146         { "dmic01_hifi", NULL, "DMIC01 Rx" },
 147         { "DMIC01 Rx", NULL, "Capture" },
 148
 149         { "hifi3", NULL, "iDisp3 Tx"},
 150         { "iDisp3 Tx", NULL, "iDisp3_out"},
 151         { "hifi2", NULL, "iDisp2 Tx"},
 152         { "iDisp2 Tx", NULL, "iDisp2_out"},
 153         { "hifi1", NULL, "iDisp1 Tx"},
 154         { "iDisp1 Tx", NULL, "iDisp1_out"},
 155 };
 156
 157 static int broxton_rt298_fe_init(struct snd_soc_pcm_runtime *rtd)
 158 {
 159         struct snd_soc_dapm_context *dapm;
 160         struct snd_soc_component *component = rtd->cpu_dai->component;
 161
 162         dapm = snd_soc_component_get_dapm(component);
 163         snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
 164
 165         return 0;
 166 }
 167
 168 static int broxton_rt298_codec_init(struct snd_soc_pcm_runtime *rtd)
 169 {
 170         struct snd_soc_codec *codec = rtd->codec;
 171         int ret = 0;
 172
 173         ret = snd_soc_card_jack_new(rtd->card, "Headset",
 174                 SND_JACK_HEADSET | SND_JACK_BTN_0,
 175                 &broxton_headset,
 176                 broxton_headset_pins, ARRAY_SIZE(broxton_headset_pins));
 177
 178         if (ret)
 179                 return ret;
 180
 181         rt298_mic_detect(codec, &broxton_headset);
 182
 183         snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");
 184
 185         return 0;
 186 }
 187
 188 static int broxton_hdmi_init(struct snd_soc_pcm_runtime *rtd)
 189 {
 190         struct bxt_rt286_private *ctx = snd_soc_card_get_drvdata(rtd->card);
 191         struct snd_soc_dai *dai = rtd->codec_dai;
 192         struct bxt_hdmi_pcm *pcm;
 193
 194         pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
 195         if (!pcm)
 196                 return -ENOMEM;
 197
 198         pcm->device = BXT_DPCM_AUDIO_HDMI1_PB + dai->id;
 199         pcm->codec_dai = dai;
 200
 201         list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
 202
 203         return 0;
 204 }
 205
 206 static int broxton_ssp5_fixup(struct snd_soc_pcm_runtime *rtd,
 207                         struct snd_pcm_hw_params *params)
 208 {
 209         struct snd_interval *rate = hw_param_interval(params,
 210                                         SNDRV_PCM_HW_PARAM_RATE);
 211         struct snd_interval *channels = hw_param_interval(params,
 212                                         SNDRV_PCM_HW_PARAM_CHANNELS);
 213         struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 214
 215         /* The ADSP will covert the FE rate to 48k, stereo */
 216         rate->min = rate->max = 48000;
 217         channels->min = channels->max = 2;
 218
 219         /* set SSP5 to 24 bit */
 220         snd_mask_none(fmt);
 221         snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE);
 222
 223         return 0;
 224 }
 225
 226 static int broxton_rt298_hw_params(struct snd_pcm_substream *substream,
 227         struct snd_pcm_hw_params *params)
 228 {
 229         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 230         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 231         int ret;
 232
 233         ret = snd_soc_dai_set_sysclk(codec_dai, RT298_SCLK_S_PLL,
 234                                         19200000, SND_SOC_CLOCK_IN);
 235         if (ret < 0) {
 236                 dev_err(rtd->dev, "can't set codec sysclk configuration\n");
 237                 return ret;
 238         }
 239
 240         return ret;
 241 }
 242
 243 static const struct snd_soc_ops broxton_rt298_ops = {
 244         .hw_params = broxton_rt298_hw_params,
 245 };
 246
 247 static const unsigned int rates[] = {
 248         48000,
 249 };
 250
 251 static const struct snd_pcm_hw_constraint_list constraints_rates = {
 252         .count = ARRAY_SIZE(rates),
 253         .list  = rates,
 254         .mask = 0,
 255 };
 256
 257 static int broxton_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
 258                                 struct snd_pcm_hw_params *params)
 259 {
 260         struct snd_interval *channels = hw_param_interval(params,
 261                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 262         channels->min = channels->max = 4;
 263
 264         return 0;
 265 }
 266
 267 static const unsigned int channels_dmic[] = {
 268         1, 2, 3, 4,
 269 };
 270
 271 static const struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
 272         .count = ARRAY_SIZE(channels_dmic),
 273         .list = channels_dmic,
 274         .mask = 0,
 275 };
 276
 277 static int broxton_dmic_startup(struct snd_pcm_substream *substream)
 278 {
 279         struct snd_pcm_runtime *runtime = substream->runtime;
 280
 281         runtime->hw.channels_max = 4;
 282         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 283                                         &constraints_dmic_channels);
 284
 285         return snd_pcm_hw_constraint_list(substream->runtime, 0,
 286                                 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
 287 }
 288
 289 static const struct snd_soc_ops broxton_dmic_ops = {
 290         .startup = broxton_dmic_startup,
 291 };
 292
 293 static const unsigned int channels[] = {
 294         2,
 295 };
 296
 297 static const struct snd_pcm_hw_constraint_list constraints_channels = {
 298         .count = ARRAY_SIZE(channels),
 299         .list = channels,
 300         .mask = 0,
 301 };
 302
 303 static int bxt_fe_startup(struct snd_pcm_substream *substream)
 304 {
 305         struct snd_pcm_runtime *runtime = substream->runtime;
 306
 307         /*
 308          * on this platform for PCM device we support:
 309          *      48Khz
 310          *      stereo
 311          *      16-bit audio
 312          */
 313
 314         runtime->hw.channels_max = 2;
 315         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 316                                 &constraints_channels);
 317
 318         runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
 319         snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
 320         snd_pcm_hw_constraint_list(runtime, 0,
 321                                 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
 322
 323         return 0;
 324 }
 325
 326 static const struct snd_soc_ops broxton_rt286_fe_ops = {
 327         .startup = bxt_fe_startup,
 328 };
 329
 330 /* broxton digital audio interface glue - connects codec <--> CPU */
 331 static struct snd_soc_dai_link broxton_rt298_dais[] = {
 332         /* Front End DAI links */
 333         [BXT_DPCM_AUDIO_PB] =
 334         {
 335                 .name = "Bxt Audio Port",
 336                 .stream_name = "Audio",
 337                 .cpu_dai_name = "System Pin",
 338                 .platform_name = "0000:00:0e.0",
 339                 .nonatomic = 1,
 340                 .dynamic = 1,
 341                 .codec_name = "snd-soc-dummy",
 342                 .codec_dai_name = "snd-soc-dummy-dai",
 343                 .init = broxton_rt298_fe_init,
 344                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 345                 .dpcm_playback = 1,
 346                 .ops = &broxton_rt286_fe_ops,
 347         },
 348         [BXT_DPCM_AUDIO_CP] =
 349         {
 350                 .name = "Bxt Audio Capture Port",
 351                 .stream_name = "Audio Record",
 352                 .cpu_dai_name = "System Pin",
 353                 .platform_name = "0000:00:0e.0",
 354                 .nonatomic = 1,
 355                 .dynamic = 1,
 356                 .codec_name = "snd-soc-dummy",
 357                 .codec_dai_name = "snd-soc-dummy-dai",
 358                 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 359                 .dpcm_capture = 1,
 360                 .ops = &broxton_rt286_fe_ops,
 361         },
 362         [BXT_DPCM_AUDIO_REF_CP] =
 363         {
 364                 .name = "Bxt Audio Reference cap",
 365                 .stream_name = "refcap",
 366                 .cpu_dai_name = "Reference Pin",
 367                 .codec_name = "snd-soc-dummy",
 368                 .codec_dai_name = "snd-soc-dummy-dai",
 369                 .platform_name = "0000:00:0e.0",
 370                 .init = NULL,
 371                 .dpcm_capture = 1,
 372                 .nonatomic = 1,
 373                 .dynamic = 1,
 374         },
 375         [BXT_DPCM_AUDIO_DMIC_CP] =
 376         {
 377                 .name = "Bxt Audio DMIC cap",
 378                 .stream_name = "dmiccap",
 379                 .cpu_dai_name = "DMIC Pin",
 380                 .codec_name = "snd-soc-dummy",
 381                 .codec_dai_name = "snd-soc-dummy-dai",
 382                 .platform_name = "0000:00:0e.0",
 383                 .init = NULL,
 384                 .dpcm_capture = 1,
 385                 .nonatomic = 1,
 386                 .dynamic = 1,
 387                 .ops = &broxton_dmic_ops,
 388         },
 389         [BXT_DPCM_AUDIO_HDMI1_PB] =
 390         {
 391                 .name = "Bxt HDMI Port1",
 392                 .stream_name = "Hdmi1",
 393                 .cpu_dai_name = "HDMI1 Pin",
 394                 .codec_name = "snd-soc-dummy",
 395                 .codec_dai_name = "snd-soc-dummy-dai",
 396                 .platform_name = "0000:00:0e.0",
 397                 .dpcm_playback = 1,
 398                 .init = NULL,
 399                 .nonatomic = 1,
 400                 .dynamic = 1,
 401         },
 402         [BXT_DPCM_AUDIO_HDMI2_PB] =
 403         {
 404                 .name = "Bxt HDMI Port2",
 405                 .stream_name = "Hdmi2",
 406                 .cpu_dai_name = "HDMI2 Pin",
 407                 .codec_name = "snd-soc-dummy",
 408                 .codec_dai_name = "snd-soc-dummy-dai",
 409                 .platform_name = "0000:00:0e.0",
 410                 .dpcm_playback = 1,
 411                 .init = NULL,
 412                 .nonatomic = 1,
 413                 .dynamic = 1,
 414         },
 415         [BXT_DPCM_AUDIO_HDMI3_PB] =
 416         {
 417                 .name = "Bxt HDMI Port3",
 418                 .stream_name = "Hdmi3",
 419                 .cpu_dai_name = "HDMI3 Pin",
 420                 .codec_name = "snd-soc-dummy",
 421                 .codec_dai_name = "snd-soc-dummy-dai",
 422                 .platform_name = "0000:00:0e.0",
 423                 .dpcm_playback = 1,
 424                 .init = NULL,
 425                 .nonatomic = 1,
 426                 .dynamic = 1,
 427         },
 428         /* Back End DAI links */
 429         {
 430                 /* SSP5 - Codec */
 431                 .name = "SSP5-Codec",
 432                 .id = 0,
 433                 .cpu_dai_name = "SSP5 Pin",
 434                 .platform_name = "0000:00:0e.0",
 435                 .no_pcm = 1,
 436                 .codec_name = "i2c-INT343A:00",
 437                 .codec_dai_name = "rt298-aif1",
 438                 .init = broxton_rt298_codec_init,
 439                 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF |
 440                                                 SND_SOC_DAIFMT_CBS_CFS,
 441                 .ignore_pmdown_time = 1,
 442                 .be_hw_params_fixup = broxton_ssp5_fixup,
 443                 .ops = &broxton_rt298_ops,
 444                 .dpcm_playback = 1,
 445                 .dpcm_capture = 1,
 446         },
 447         {
 448                 .name = "dmic01",
 449                 .id = 1,
 450                 .cpu_dai_name = "DMIC01 Pin",
 451                 .codec_name = "dmic-codec",
 452                 .codec_dai_name = "dmic-hifi",
 453                 .platform_name = "0000:00:0e.0",
 454                 .be_hw_params_fixup = broxton_dmic_fixup,
 455                 .ignore_suspend = 1,
 456                 .dpcm_capture = 1,
 457                 .no_pcm = 1,
 458         },
 459         {
 460                 .name = "iDisp1",
 461                 .id = 3,
 462                 .cpu_dai_name = "iDisp1 Pin",
 463                 .codec_name = "ehdaudio0D2",
 464                 .codec_dai_name = "intel-hdmi-hifi1",
 465                 .platform_name = "0000:00:0e.0",
 466                 .init = broxton_hdmi_init,
 467                 .dpcm_playback = 1,
 468                 .no_pcm = 1,
 469         },
 470         {
 471                 .name = "iDisp2",
 472                 .id = 4,
 473                 .cpu_dai_name = "iDisp2 Pin",
 474                 .codec_name = "ehdaudio0D2",
 475                 .codec_dai_name = "intel-hdmi-hifi2",
 476                 .platform_name = "0000:00:0e.0",
 477                 .init = broxton_hdmi_init,
 478                 .dpcm_playback = 1,
 479                 .no_pcm = 1,
 480         },
 481         {
 482                 .name = "iDisp3",
 483                 .id = 5,
 484                 .cpu_dai_name = "iDisp3 Pin",
 485                 .codec_name = "ehdaudio0D2",
 486                 .codec_dai_name = "intel-hdmi-hifi3",
 487                 .platform_name = "0000:00:0e.0",
 488                 .init = broxton_hdmi_init,
 489                 .dpcm_playback = 1,
 490                 .no_pcm = 1,
 491         },
 492 };
 493
 494 #define NAME_SIZE       32
 495 static int bxt_card_late_probe(struct snd_soc_card *card)
 496 {
 497         struct bxt_rt286_private *ctx = snd_soc_card_get_drvdata(card);
 498         struct bxt_hdmi_pcm *pcm;
 499         struct snd_soc_codec *codec = NULL;
 500         int err, i = 0;
 501         char jack_name[NAME_SIZE];
 502
 503         list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
 504                 codec = pcm->codec_dai->codec;
 505                 snprintf(jack_name, sizeof(jack_name),
 506                         "HDMI/DP, pcm=%d Jack", pcm->device);
 507                 err = snd_soc_card_jack_new(card, jack_name,
 508                                         SND_JACK_AVOUT, &broxton_hdmi[i],
 509                                         NULL, 0);
 510
 511                 if (err)
 512                         return err;
 513
 514                 err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
 515                                                 &broxton_hdmi[i]);
 516                 if (err < 0)
 517                         return err;
 518
 519                 i++;
 520         }
 521
 522         if (!codec)
 523                 return -EINVAL;
 524
 525         return hdac_hdmi_jack_port_init(codec, &card->dapm);
 526 }
 527
 528
 529 /* broxton audio machine driver for SPT + RT298S */
 530 static struct snd_soc_card broxton_rt298 = {
 531         .name = "broxton-rt298",
 532         .dai_link = broxton_rt298_dais,
 533         .num_links = ARRAY_SIZE(broxton_rt298_dais),
 534         .controls = broxton_controls,
 535         .num_controls = ARRAY_SIZE(broxton_controls),
 536         .dapm_widgets = broxton_widgets,
 537         .num_dapm_widgets = ARRAY_SIZE(broxton_widgets),
 538         .dapm_routes = broxton_rt298_map,
 539         .num_dapm_routes = ARRAY_SIZE(broxton_rt298_map),
 540         .fully_routed = true,
 541         .late_probe = bxt_card_late_probe,
 542
 543 };
 544
 545 static struct snd_soc_card geminilake_rt298 = {
 546         .name = "geminilake-rt298",
 547         .dai_link = broxton_rt298_dais,
 548         .num_links = ARRAY_SIZE(broxton_rt298_dais),
 549         .controls = broxton_controls,
 550         .num_controls = ARRAY_SIZE(broxton_controls),
 551         .dapm_widgets = broxton_widgets,
 552         .num_dapm_widgets = ARRAY_SIZE(broxton_widgets),
 553         .dapm_routes = geminilake_rt298_map,
 554         .num_dapm_routes = ARRAY_SIZE(geminilake_rt298_map),
 555         .fully_routed = true,
 556         .late_probe = bxt_card_late_probe,
 557 };
 558
 559 static int broxton_audio_probe(struct platform_device *pdev)
 560 {
 561         struct bxt_rt286_private *ctx;
 562         struct snd_soc_card *card =
 563                         (struct snd_soc_card *)pdev->id_entry->driver_data;
 564         int i;
 565
 566         for (i = 0; i < ARRAY_SIZE(broxton_rt298_dais); i++) {
 567                 if (!strncmp(card->dai_link[i].codec_name, "i2c-INT343A:00",
 568                                                 I2C_NAME_SIZE)) {
 569                         if (!strncmp(card->name, "broxton-rt298",
 570                                                 PLATFORM_NAME_SIZE)) {
 571                                 card->dai_link[i].name = "SSP5-Codec";
 572                                 card->dai_link[i].cpu_dai_name = "SSP5 Pin";
 573                         } else if (!strncmp(card->name, "geminilake-rt298",
 574                                                 PLATFORM_NAME_SIZE)) {
 575                                 card->dai_link[i].name = "SSP2-Codec";
 576                                 card->dai_link[i].cpu_dai_name = "SSP2 Pin";
 577                         }
 578                 }
 579         }
 580
 581         ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC);
 582         if (!ctx)
 583                 return -ENOMEM;
 584
 585         INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
 586
 587         card->dev = &pdev->dev;
 588         snd_soc_card_set_drvdata(card, ctx);
 589
 590         return devm_snd_soc_register_card(&pdev->dev, card);
 591 }
 592
 593 static const struct platform_device_id bxt_board_ids[] = {
 594         { .name = "bxt_alc298s_i2s", .driver_data =
 595                                 (unsigned long)&broxton_rt298 },
 596         { .name = "glk_alc298s_i2s", .driver_data =
 597                                 (unsigned long)&geminilake_rt298 },
 598         {}
 599 };
 600
 601 static struct platform_driver broxton_audio = {
 602         .probe = broxton_audio_probe,
 603         .driver = {
 604                 .name = "bxt_alc298s_i2s",
 605                 .pm = &snd_soc_pm_ops,
 606         },
 607         .id_table = bxt_board_ids,
 608 };
 609 module_platform_driver(broxton_audio)
 610
 611 /* Module information */
 612 MODULE_AUTHOR("Ramesh Babu <Ramesh.Babu@intel.com>");
 613 MODULE_AUTHOR("Senthilnathan Veppur <senthilnathanx.veppur@intel.com>");
 614 MODULE_DESCRIPTION("Intel SST Audio for Broxton");
 615 MODULE_LICENSE("GPL v2");
 616 MODULE_ALIAS("platform:bxt_alc298s_i2s");
 617 MODULE_ALIAS("platform:glk_alc298s_i2s");