sound/soc/intel/boards/kbl_rt5660.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 // Copyright(c) 2018-19 Canonical Corporation.
   3
   4 /*
   5  * Intel Kabylake I2S Machine Driver with RT5660 Codec
   6  *
   7  * Modified from:
   8  *   Intel Kabylake I2S Machine driver supporting MAXIM98357a and
   9  *   DA7219 codecs
  10  * Also referred to:
  11  *   Intel Broadwell I2S Machine driver supporting RT5677 codec
  12  */
  13
  14 #include <linux/module.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/gpio/consumer.h>
  17 #include <linux/acpi.h>
  18 #include <sound/core.h>
  19 #include <sound/jack.h>
  20 #include <sound/pcm.h>
  21 #include <sound/pcm_params.h>
  22 #include <sound/soc.h>
  23
  24 #include "../../codecs/hdac_hdmi.h"
  25 #include "../../codecs/rt5660.h"
  26
  27 #define KBL_RT5660_CODEC_DAI "rt5660-aif1"
  28 #define DUAL_CHANNEL 2
  29
  30 static struct snd_soc_card *kabylake_audio_card;
  31 static struct snd_soc_jack skylake_hdmi[3];
  32 static struct snd_soc_jack lineout_jack;
  33 static struct snd_soc_jack mic_jack;
  34
  35 struct kbl_hdmi_pcm {
  36         struct list_head head;
  37         struct snd_soc_dai *codec_dai;
  38         int device;
  39 };
  40
  41 struct kbl_codec_private {
  42         struct gpio_desc *gpio_lo_mute;
  43         struct list_head hdmi_pcm_list;
  44 };
  45
  46 enum {
  47         KBL_DPCM_AUDIO_PB = 0,
  48         KBL_DPCM_AUDIO_CP,
  49         KBL_DPCM_AUDIO_HDMI1_PB,
  50         KBL_DPCM_AUDIO_HDMI2_PB,
  51         KBL_DPCM_AUDIO_HDMI3_PB,
  52 };
  53
  54 #define GPIO_LINEOUT_MUTE_INDEX 0
  55 #define GPIO_LINEOUT_DET_INDEX 3
  56 #define GPIO_LINEIN_DET_INDEX 4
  57
  58 static const struct acpi_gpio_params lineout_mute_gpio = { GPIO_LINEOUT_MUTE_INDEX, 0, true };
  59 static const struct acpi_gpio_params lineout_det_gpio = { GPIO_LINEOUT_DET_INDEX, 0, false };
  60 static const struct acpi_gpio_params mic_det_gpio = { GPIO_LINEIN_DET_INDEX, 0, false };
  61
  62
  63 static const struct acpi_gpio_mapping acpi_rt5660_gpios[] = {
  64         { "lineout-mute-gpios", &lineout_mute_gpio, 1 },
  65         { "lineout-det-gpios", &lineout_det_gpio, 1 },
  66         { "mic-det-gpios", &mic_det_gpio, 1 },
  67         { NULL },
  68 };
  69
  70 static struct snd_soc_jack_pin lineout_jack_pin = {
  71         .pin    = "Line Out",
  72         .mask   = SND_JACK_LINEOUT,
  73 };
  74
  75 static struct snd_soc_jack_pin mic_jack_pin = {
  76         .pin    = "Line In",
  77         .mask   = SND_JACK_MICROPHONE,
  78 };
  79
  80 static struct snd_soc_jack_gpio lineout_jack_gpio = {
  81         .name                   = "lineout-det",
  82         .report                 = SND_JACK_LINEOUT,
  83         .debounce_time          = 200,
  84 };
  85
  86 static struct snd_soc_jack_gpio mic_jack_gpio = {
  87         .name                   = "mic-det",
  88         .report                 = SND_JACK_MICROPHONE,
  89         .debounce_time          = 200,
  90 };
  91
  92 static int kabylake_5660_event_lineout(struct snd_soc_dapm_widget *w,
  93                         struct snd_kcontrol *k, int event)
  94 {
  95         struct snd_soc_dapm_context *dapm = w->dapm;
  96         struct kbl_codec_private *priv = snd_soc_card_get_drvdata(dapm->card);
  97
  98         gpiod_set_value_cansleep(priv->gpio_lo_mute,
  99                         !(SND_SOC_DAPM_EVENT_ON(event)));
 100
 101         return 0;
 102 }
 103
 104 static const struct snd_kcontrol_new kabylake_rt5660_controls[] = {
 105         SOC_DAPM_PIN_SWITCH("Line In"),
 106         SOC_DAPM_PIN_SWITCH("Line Out"),
 107 };
 108
 109 static const struct snd_soc_dapm_widget kabylake_rt5660_widgets[] = {
 110         SND_SOC_DAPM_MIC("Line In", NULL),
 111         SND_SOC_DAPM_LINE("Line Out", kabylake_5660_event_lineout),
 112 };
 113
 114 static const struct snd_soc_dapm_route kabylake_rt5660_map[] = {
 115         /* other jacks */
 116         {"IN1P", NULL, "Line In"},
 117         {"IN2P", NULL, "Line In"},
 118         {"Line Out", NULL, "LOUTR"},
 119         {"Line Out", NULL, "LOUTL"},
 120
 121         /* CODEC BE connections */
 122         { "AIF1 Playback", NULL, "ssp0 Tx"},
 123         { "ssp0 Tx", NULL, "codec0_out"},
 124
 125         { "codec0_in", NULL, "ssp0 Rx" },
 126         { "ssp0 Rx", NULL, "AIF1 Capture" },
 127
 128         { "hifi1", NULL, "iDisp1 Tx"},
 129         { "iDisp1 Tx", NULL, "iDisp1_out"},
 130         { "hifi2", NULL, "iDisp2 Tx"},
 131         { "iDisp2 Tx", NULL, "iDisp2_out"},
 132         { "hifi3", NULL, "iDisp3 Tx"},
 133         { "iDisp3 Tx", NULL, "iDisp3_out"},
 134 };
 135
 136 static int kabylake_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
 137                         struct snd_pcm_hw_params *params)
 138 {
 139         struct snd_interval *rate = hw_param_interval(params,
 140                         SNDRV_PCM_HW_PARAM_RATE);
 141         struct snd_interval *chan = hw_param_interval(params,
 142                         SNDRV_PCM_HW_PARAM_CHANNELS);
 143         struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 144
 145         /* The ADSP will convert the FE rate to 48k, stereo */
 146         rate->min = rate->max = 48000;
 147         chan->min = chan->max = DUAL_CHANNEL;
 148
 149         /* set SSP0 to 24 bit */
 150         snd_mask_none(fmt);
 151         snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
 152
 153         return 0;
 154 }
 155
 156 static int kabylake_rt5660_codec_init(struct snd_soc_pcm_runtime *rtd)
 157 {
 158         int ret;
 159         struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(rtd->card);
 160         struct snd_soc_component *component = snd_soc_rtd_to_codec(rtd, 0)->component;
 161         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 162
 163         ret = devm_acpi_dev_add_driver_gpios(component->dev, acpi_rt5660_gpios);
 164         if (ret)
 165                 dev_warn(component->dev, "Failed to add driver gpios\n");
 166
 167         /* Request rt5660 GPIO for lineout mute control, return if fails */
 168         ctx->gpio_lo_mute = gpiod_get(component->dev, "lineout-mute",
 169                                       GPIOD_OUT_HIGH);
 170         if (IS_ERR(ctx->gpio_lo_mute)) {
 171                 dev_err(component->dev, "Can't find GPIO_MUTE# gpio\n");
 172                 return PTR_ERR(ctx->gpio_lo_mute);
 173         }
 174
 175         /* Create and initialize headphone jack, this jack is not mandatory, don't return if fails */
 176         ret = snd_soc_card_jack_new_pins(rtd->card, "Lineout Jack",
 177                                          SND_JACK_LINEOUT, &lineout_jack,
 178                                          &lineout_jack_pin, 1);
 179         if (ret)
 180                 dev_warn(component->dev, "Can't create Lineout jack\n");
 181         else {
 182                 lineout_jack_gpio.gpiod_dev = component->dev;
 183                 ret = snd_soc_jack_add_gpios(&lineout_jack, 1,
 184                                              &lineout_jack_gpio);
 185                 if (ret)
 186                         dev_warn(component->dev, "Can't add Lineout jack gpio\n");
 187         }
 188
 189         /* Create and initialize mic jack, this jack is not mandatory, don't return if fails */
 190         ret = snd_soc_card_jack_new_pins(rtd->card, "Mic Jack",
 191                                          SND_JACK_MICROPHONE, &mic_jack,
 192                                          &mic_jack_pin, 1);
 193         if (ret)
 194                 dev_warn(component->dev, "Can't create mic jack\n");
 195         else {
 196                 mic_jack_gpio.gpiod_dev = component->dev;
 197                 ret = snd_soc_jack_add_gpios(&mic_jack, 1, &mic_jack_gpio);
 198                 if (ret)
 199                         dev_warn(component->dev, "Can't add mic jack gpio\n");
 200         }
 201
 202         /* Here we enable some dapms in advance to reduce the pop noise for recording via line-in */
 203         snd_soc_dapm_force_enable_pin(dapm, "MICBIAS1");
 204         snd_soc_dapm_force_enable_pin(dapm, "BST1");
 205         snd_soc_dapm_force_enable_pin(dapm, "BST2");
 206
 207         return 0;
 208 }
 209
 210 static void kabylake_rt5660_codec_exit(struct snd_soc_pcm_runtime *rtd)
 211 {
 212         struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(rtd->card);
 213
 214         /*
 215          * The .exit() can be reached without going through the .init()
 216          * so explicitly test if the gpiod is valid
 217          */
 218         if (!IS_ERR_OR_NULL(ctx->gpio_lo_mute))
 219                 gpiod_put(ctx->gpio_lo_mute);
 220 }
 221
 222 static int kabylake_hdmi_init(struct snd_soc_pcm_runtime *rtd, int device)
 223 {
 224         struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(rtd->card);
 225         struct snd_soc_dai *dai = snd_soc_rtd_to_codec(rtd, 0);
 226         struct kbl_hdmi_pcm *pcm;
 227
 228         pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
 229         if (!pcm)
 230                 return -ENOMEM;
 231
 232         pcm->device = device;
 233         pcm->codec_dai = dai;
 234
 235         list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
 236
 237         return 0;
 238 }
 239
 240 static int kabylake_hdmi1_init(struct snd_soc_pcm_runtime *rtd)
 241 {
 242         return kabylake_hdmi_init(rtd, KBL_DPCM_AUDIO_HDMI1_PB);
 243 }
 244
 245 static int kabylake_hdmi2_init(struct snd_soc_pcm_runtime *rtd)
 246 {
 247         return kabylake_hdmi_init(rtd, KBL_DPCM_AUDIO_HDMI2_PB);
 248 }
 249
 250 static int kabylake_hdmi3_init(struct snd_soc_pcm_runtime *rtd)
 251 {
 252         return kabylake_hdmi_init(rtd, KBL_DPCM_AUDIO_HDMI3_PB);
 253 }
 254
 255 static int kabylake_rt5660_hw_params(struct snd_pcm_substream *substream,
 256         struct snd_pcm_hw_params *params)
 257 {
 258         struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
 259         struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
 260         int ret;
 261
 262         ret = snd_soc_dai_set_sysclk(codec_dai,
 263                                      RT5660_SCLK_S_PLL1, params_rate(params) * 512,
 264                                      SND_SOC_CLOCK_IN);
 265         if (ret < 0) {
 266                 dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
 267                 return ret;
 268         }
 269
 270         ret = snd_soc_dai_set_pll(codec_dai, 0,
 271                                   RT5660_PLL1_S_BCLK,
 272                                   params_rate(params) * 50,
 273                                   params_rate(params) * 512);
 274         if (ret < 0)
 275                 dev_err(codec_dai->dev, "can't set codec pll: %d\n", ret);
 276
 277         return ret;
 278 }
 279
 280 static struct snd_soc_ops kabylake_rt5660_ops = {
 281         .hw_params = kabylake_rt5660_hw_params,
 282 };
 283
 284 static const unsigned int rates[] = {
 285         48000,
 286 };
 287
 288 static const struct snd_pcm_hw_constraint_list constraints_rates = {
 289         .count = ARRAY_SIZE(rates),
 290         .list  = rates,
 291         .mask = 0,
 292 };
 293
 294 static const unsigned int channels[] = {
 295         DUAL_CHANNEL,
 296 };
 297
 298 static const struct snd_pcm_hw_constraint_list constraints_channels = {
 299         .count = ARRAY_SIZE(channels),
 300         .list = channels,
 301         .mask = 0,
 302 };
 303
 304 static int kbl_fe_startup(struct snd_pcm_substream *substream)
 305 {
 306         struct snd_pcm_runtime *runtime = substream->runtime;
 307
 308         /*
 309          * On this platform for PCM device we support,
 310          * 48Khz
 311          * stereo
 312          * 16 bit audio
 313          */
 314
 315         runtime->hw.channels_max = DUAL_CHANNEL;
 316         snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
 317                                            &constraints_channels);
 318
 319         runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
 320         snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
 321
 322         snd_pcm_hw_constraint_list(runtime, 0,
 323                                 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
 324
 325         return 0;
 326 }
 327
 328 static const struct snd_soc_ops kabylake_rt5660_fe_ops = {
 329         .startup = kbl_fe_startup,
 330 };
 331
 332 SND_SOC_DAILINK_DEF(dummy,
 333         DAILINK_COMP_ARRAY(COMP_DUMMY()));
 334
 335 SND_SOC_DAILINK_DEF(system,
 336         DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
 337
 338 SND_SOC_DAILINK_DEF(hdmi1,
 339         DAILINK_COMP_ARRAY(COMP_CPU("HDMI1 Pin")));
 340
 341 SND_SOC_DAILINK_DEF(hdmi2,
 342         DAILINK_COMP_ARRAY(COMP_CPU("HDMI2 Pin")));
 343
 344 SND_SOC_DAILINK_DEF(hdmi3,
 345         DAILINK_COMP_ARRAY(COMP_CPU("HDMI3 Pin")));
 346
 347 SND_SOC_DAILINK_DEF(ssp0_pin,
 348         DAILINK_COMP_ARRAY(COMP_CPU("SSP0 Pin")));
 349 SND_SOC_DAILINK_DEF(ssp0_codec,
 350         DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10EC3277:00", KBL_RT5660_CODEC_DAI)));
 351
 352 SND_SOC_DAILINK_DEF(idisp1_pin,
 353                     DAILINK_COMP_ARRAY(COMP_CPU("iDisp1 Pin")));
 354 SND_SOC_DAILINK_DEF(idisp1_codec,
 355         DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi1")));
 356
 357 SND_SOC_DAILINK_DEF(idisp2_pin,
 358         DAILINK_COMP_ARRAY(COMP_CPU("iDisp2 Pin")));
 359 SND_SOC_DAILINK_DEF(idisp2_codec,
 360         DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi2")));
 361
 362 SND_SOC_DAILINK_DEF(idisp3_pin,
 363         DAILINK_COMP_ARRAY(COMP_CPU("iDisp3 Pin")));
 364 SND_SOC_DAILINK_DEF(idisp3_codec,
 365         DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi3")));
 366
 367 SND_SOC_DAILINK_DEF(platform,
 368         DAILINK_COMP_ARRAY(COMP_PLATFORM("0000:00:1f.3")));
 369
 370 /* kabylake digital audio interface glue - connects rt5660 codec <--> CPU */
 371 static struct snd_soc_dai_link kabylake_rt5660_dais[] = {
 372         /* Front End DAI links */
 373         [KBL_DPCM_AUDIO_PB] = {
 374                 .name = "Kbl Audio Port",
 375                 .stream_name = "Audio",
 376                 .dynamic = 1,
 377                 .nonatomic = 1,
 378                 .trigger = {
 379                         SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 380                 .dpcm_playback = 1,
 381                 .ops = &kabylake_rt5660_fe_ops,
 382                 SND_SOC_DAILINK_REG(system, dummy, platform),
 383         },
 384         [KBL_DPCM_AUDIO_CP] = {
 385                 .name = "Kbl Audio Capture Port",
 386                 .stream_name = "Audio Record",
 387                 .dynamic = 1,
 388                 .nonatomic = 1,
 389                 .trigger = {
 390                         SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 391                 .dpcm_capture = 1,
 392                 .ops = &kabylake_rt5660_fe_ops,
 393                 SND_SOC_DAILINK_REG(system, dummy, platform),
 394         },
 395         [KBL_DPCM_AUDIO_HDMI1_PB] = {
 396                 .name = "Kbl HDMI Port1",
 397                 .stream_name = "Hdmi1",
 398                 .dpcm_playback = 1,
 399                 .init = NULL,
 400                 .trigger = {
 401                         SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 402                 .nonatomic = 1,
 403                 .dynamic = 1,
 404                 SND_SOC_DAILINK_REG(hdmi1, dummy, platform),
 405         },
 406         [KBL_DPCM_AUDIO_HDMI2_PB] = {
 407                 .name = "Kbl HDMI Port2",
 408                 .stream_name = "Hdmi2",
 409                 .dpcm_playback = 1,
 410                 .init = NULL,
 411                 .trigger = {
 412                         SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 413                 .nonatomic = 1,
 414                 .dynamic = 1,
 415                 SND_SOC_DAILINK_REG(hdmi2, dummy, platform),
 416         },
 417         [KBL_DPCM_AUDIO_HDMI3_PB] = {
 418                 .name = "Kbl HDMI Port3",
 419                 .stream_name = "Hdmi3",
 420                 .trigger = {
 421                         SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
 422                 .dpcm_playback = 1,
 423                 .init = NULL,
 424                 .nonatomic = 1,
 425                 .dynamic = 1,
 426                 SND_SOC_DAILINK_REG(hdmi3, dummy, platform),
 427         },
 428
 429         /* Back End DAI links */
 430         {
 431                 /* SSP0 - Codec */
 432                 .name = "SSP0-Codec",
 433                 .id = 0,
 434                 .no_pcm = 1,
 435                 .init = kabylake_rt5660_codec_init,
 436                 .exit = kabylake_rt5660_codec_exit,
 437                 .dai_fmt = SND_SOC_DAIFMT_I2S |
 438                 SND_SOC_DAIFMT_NB_NF |
 439                 SND_SOC_DAIFMT_CBC_CFC,
 440                 .ignore_pmdown_time = 1,
 441                 .be_hw_params_fixup = kabylake_ssp0_fixup,
 442                 .ops = &kabylake_rt5660_ops,
 443                 .dpcm_playback = 1,
 444                 .dpcm_capture = 1,
 445                 SND_SOC_DAILINK_REG(ssp0_pin, ssp0_codec, platform),
 446         },
 447         {
 448                 .name = "iDisp1",
 449                 .id = 1,
 450                 .dpcm_playback = 1,
 451                 .init = kabylake_hdmi1_init,
 452                 .no_pcm = 1,
 453                 SND_SOC_DAILINK_REG(idisp1_pin, idisp1_codec, platform),
 454         },
 455         {
 456                 .name = "iDisp2",
 457                 .id = 2,
 458                 .init = kabylake_hdmi2_init,
 459                 .dpcm_playback = 1,
 460                 .no_pcm = 1,
 461                 SND_SOC_DAILINK_REG(idisp2_pin, idisp2_codec, platform),
 462         },
 463         {
 464                 .name = "iDisp3",
 465                 .id = 3,
 466                 .init = kabylake_hdmi3_init,
 467                 .dpcm_playback = 1,
 468                 .no_pcm = 1,
 469                 SND_SOC_DAILINK_REG(idisp3_pin, idisp3_codec, platform),
 470         },
 471 };
 472
 473
 474 #define NAME_SIZE       32
 475 static int kabylake_card_late_probe(struct snd_soc_card *card)
 476 {
 477         struct kbl_codec_private *ctx = snd_soc_card_get_drvdata(card);
 478         struct kbl_hdmi_pcm *pcm;
 479         struct snd_soc_component *component = NULL;
 480         int err, i = 0;
 481         char jack_name[NAME_SIZE];
 482
 483         list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
 484                 component = pcm->codec_dai->component;
 485                 snprintf(jack_name, sizeof(jack_name),
 486                         "HDMI/DP, pcm=%d Jack", pcm->device);
 487                 err = snd_soc_card_jack_new(card, jack_name,
 488                                         SND_JACK_AVOUT, &skylake_hdmi[i]);
 489
 490                 if (err)
 491                         return err;
 492
 493                 err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
 494                                 &skylake_hdmi[i]);
 495                 if (err < 0)
 496                         return err;
 497
 498                 i++;
 499
 500         }
 501
 502         if (!component)
 503                 return -EINVAL;
 504
 505         return hdac_hdmi_jack_port_init(component, &card->dapm);
 506 }
 507
 508 /* kabylake audio machine driver for rt5660 */
 509 static struct snd_soc_card kabylake_audio_card_rt5660 = {
 510         .name = "kblrt5660",
 511         .owner = THIS_MODULE,
 512         .dai_link = kabylake_rt5660_dais,
 513         .num_links = ARRAY_SIZE(kabylake_rt5660_dais),
 514         .controls = kabylake_rt5660_controls,
 515         .num_controls = ARRAY_SIZE(kabylake_rt5660_controls),
 516         .dapm_widgets = kabylake_rt5660_widgets,
 517         .num_dapm_widgets = ARRAY_SIZE(kabylake_rt5660_widgets),
 518         .dapm_routes = kabylake_rt5660_map,
 519         .num_dapm_routes = ARRAY_SIZE(kabylake_rt5660_map),
 520         .fully_routed = true,
 521         .late_probe = kabylake_card_late_probe,
 522 };
 523
 524 static int kabylake_audio_probe(struct platform_device *pdev)
 525 {
 526         struct kbl_codec_private *ctx;
 527
 528         ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
 529         if (!ctx)
 530                 return -ENOMEM;
 531
 532         INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
 533
 534         kabylake_audio_card =
 535                 (struct snd_soc_card *)pdev->id_entry->driver_data;
 536
 537         kabylake_audio_card->dev = &pdev->dev;
 538         snd_soc_card_set_drvdata(kabylake_audio_card, ctx);
 539         return devm_snd_soc_register_card(&pdev->dev, kabylake_audio_card);
 540 }
 541
 542 static const struct platform_device_id kbl_board_ids[] = {
 543         {
 544                 .name = "kbl_rt5660",
 545                 .driver_data =
 546                         (kernel_ulong_t)&kabylake_audio_card_rt5660,
 547         },
 548         { }
 549 };
 550 MODULE_DEVICE_TABLE(platform, kbl_board_ids);
 551
 552 static struct platform_driver kabylake_audio = {
 553         .probe = kabylake_audio_probe,
 554         .driver = {
 555                 .name = "kbl_rt5660",
 556                 .pm = &snd_soc_pm_ops,
 557         },
 558         .id_table = kbl_board_ids,
 559 };
 560
 561 module_platform_driver(kabylake_audio)
 562
 563 /* Module information */
 564 MODULE_DESCRIPTION("Audio Machine driver-RT5660 in I2S mode");
 565 MODULE_AUTHOR("Hui Wang <hui.wang@canonical.com>");
 566 MODULE_LICENSE("GPL v2");