sound/soc/intel/boards/cht_bsw_max98090_ti.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *  cht-bsw-max98090.c - ASoc Machine driver for Intel Cherryview-based
   4  *  platforms Cherrytrail and Braswell, with max98090 & TI codec.
   5  *
   6  *  Copyright (C) 2015 Intel Corp
   7  *  Author: Fang, Yang A <yang.a.fang@intel.com>
   8  *  This file is modified from cht_bsw_rt5645.c
   9  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  10  *
  11  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  12  */
  13
  14 #include <linux/dmi.h>
  15 #include <linux/gpio/consumer.h>
  16 #include <linux/module.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/slab.h>
  19 #include <linux/acpi.h>
  20 #include <linux/clk.h>
  21 #include <sound/pcm.h>
  22 #include <sound/pcm_params.h>
  23 #include <sound/soc.h>
  24 #include <sound/soc-acpi.h>
  25 #include <sound/jack.h>
  26 #include "../../codecs/max98090.h"
  27 #include "../atom/sst-atom-controls.h"
  28 #include "../../codecs/ts3a227e.h"
  29
  30 #define CHT_PLAT_CLK_3_HZ       19200000
  31 #define CHT_CODEC_DAI   "HiFi"
  32
  33 #define QUIRK_PMC_PLT_CLK_0                             0x01
  34
  35 struct cht_mc_private {
  36         struct clk *mclk;
  37         struct snd_soc_jack jack;
  38         bool ts3a227e_present;
  39         int quirks;
  40 };
  41
  42 static int platform_clock_control(struct snd_soc_dapm_widget *w,
  43                                           struct snd_kcontrol *k, int  event)
  44 {
  45         struct snd_soc_dapm_context *dapm = w->dapm;
  46         struct snd_soc_card *card = dapm->card;
  47         struct snd_soc_dai *codec_dai;
  48         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
  49         int ret;
  50
  51         /* See the comment in snd_cht_mc_probe() */
  52         if (ctx->quirks & QUIRK_PMC_PLT_CLK_0)
  53                 return 0;
  54
  55         codec_dai = snd_soc_card_get_codec_dai(card, CHT_CODEC_DAI);
  56         if (!codec_dai) {
  57                 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
  58                 return -EIO;
  59         }
  60
  61         if (SND_SOC_DAPM_EVENT_ON(event)) {
  62                 ret = clk_prepare_enable(ctx->mclk);
  63                 if (ret < 0) {
  64                         dev_err(card->dev,
  65                                 "could not configure MCLK state");
  66                         return ret;
  67                 }
  68         } else {
  69                 clk_disable_unprepare(ctx->mclk);
  70         }
  71
  72         return 0;
  73 }
  74
  75 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
  76         SND_SOC_DAPM_HP("Headphone", NULL),
  77         SND_SOC_DAPM_MIC("Headset Mic", NULL),
  78         SND_SOC_DAPM_MIC("Int Mic", NULL),
  79         SND_SOC_DAPM_SPK("Ext Spk", NULL),
  80         SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
  81                             platform_clock_control, SND_SOC_DAPM_PRE_PMU |
  82                             SND_SOC_DAPM_POST_PMD),
  83 };
  84
  85 static const struct snd_soc_dapm_route cht_audio_map[] = {
  86         {"IN34", NULL, "Headset Mic"},
  87         {"Headset Mic", NULL, "MICBIAS"},
  88         {"DMICL", NULL, "Int Mic"},
  89         {"Headphone", NULL, "HPL"},
  90         {"Headphone", NULL, "HPR"},
  91         {"Ext Spk", NULL, "SPKL"},
  92         {"Ext Spk", NULL, "SPKR"},
  93         {"HiFi Playback", NULL, "ssp2 Tx"},
  94         {"ssp2 Tx", NULL, "codec_out0"},
  95         {"ssp2 Tx", NULL, "codec_out1"},
  96         {"codec_in0", NULL, "ssp2 Rx" },
  97         {"codec_in1", NULL, "ssp2 Rx" },
  98         {"ssp2 Rx", NULL, "HiFi Capture"},
  99         {"Headphone", NULL, "Platform Clock"},
 100         {"Headset Mic", NULL, "Platform Clock"},
 101         {"Int Mic", NULL, "Platform Clock"},
 102         {"Ext Spk", NULL, "Platform Clock"},
 103 };
 104
 105 static const struct snd_kcontrol_new cht_mc_controls[] = {
 106         SOC_DAPM_PIN_SWITCH("Headphone"),
 107         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 108         SOC_DAPM_PIN_SWITCH("Int Mic"),
 109         SOC_DAPM_PIN_SWITCH("Ext Spk"),
 110 };
 111
 112 static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
 113                              struct snd_pcm_hw_params *params)
 114 {
 115         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 116         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 117         int ret;
 118
 119         ret = snd_soc_dai_set_sysclk(codec_dai, M98090_REG_SYSTEM_CLOCK,
 120                                      CHT_PLAT_CLK_3_HZ, SND_SOC_CLOCK_IN);
 121         if (ret < 0) {
 122                 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
 123                 return ret;
 124         }
 125
 126         return 0;
 127 }
 128
 129 static int cht_ti_jack_event(struct notifier_block *nb,
 130                 unsigned long event, void *data)
 131 {
 132         struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
 133         struct snd_soc_dapm_context *dapm = &jack->card->dapm;
 134
 135         if (event & SND_JACK_MICROPHONE) {
 136                 snd_soc_dapm_force_enable_pin(dapm, "SHDN");
 137                 snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
 138                 snd_soc_dapm_sync(dapm);
 139         } else {
 140                 snd_soc_dapm_disable_pin(dapm, "MICBIAS");
 141                 snd_soc_dapm_disable_pin(dapm, "SHDN");
 142                 snd_soc_dapm_sync(dapm);
 143         }
 144
 145         return 0;
 146 }
 147
 148 static struct notifier_block cht_jack_nb = {
 149         .notifier_call = cht_ti_jack_event,
 150 };
 151
 152 static struct snd_soc_jack_pin hs_jack_pins[] = {
 153         {
 154                 .pin    = "Headphone",
 155                 .mask   = SND_JACK_HEADPHONE,
 156         },
 157         {
 158                 .pin    = "Headset Mic",
 159                 .mask   = SND_JACK_MICROPHONE,
 160         },
 161 };
 162
 163 static struct snd_soc_jack_gpio hs_jack_gpios[] = {
 164         {
 165                 .name           = "hp",
 166                 .report         = SND_JACK_HEADPHONE | SND_JACK_LINEOUT,
 167                 .debounce_time  = 200,
 168         },
 169         {
 170                 .name           = "mic",
 171                 .invert         = 1,
 172                 .report         = SND_JACK_MICROPHONE,
 173                 .debounce_time  = 200,
 174         },
 175 };
 176
 177 static const struct acpi_gpio_params hp_gpios = { 0, 0, false };
 178 static const struct acpi_gpio_params mic_gpios = { 1, 0, false };
 179
 180 static const struct acpi_gpio_mapping acpi_max98090_gpios[] = {
 181         { "hp-gpios", &hp_gpios, 1 },
 182         { "mic-gpios", &mic_gpios, 1 },
 183         {},
 184 };
 185
 186 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
 187 {
 188         int ret;
 189         int jack_type;
 190         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
 191         struct snd_soc_jack *jack = &ctx->jack;
 192
 193         if (ctx->ts3a227e_present) {
 194                 /*
 195                  * The jack has already been created in the
 196                  * cht_max98090_headset_init() function.
 197                  */
 198                 snd_soc_jack_notifier_register(jack, &cht_jack_nb);
 199                 return 0;
 200         }
 201
 202         jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
 203
 204         ret = snd_soc_card_jack_new_pins(runtime->card, "Headset Jack",
 205                                          jack_type, jack,
 206                                          hs_jack_pins,
 207                                          ARRAY_SIZE(hs_jack_pins));
 208         if (ret) {
 209                 dev_err(runtime->dev, "Headset Jack creation failed %d\n", ret);
 210                 return ret;
 211         }
 212
 213         ret = snd_soc_jack_add_gpiods(runtime->card->dev->parent, jack,
 214                                       ARRAY_SIZE(hs_jack_gpios),
 215                                       hs_jack_gpios);
 216         if (ret) {
 217                 /*
 218                  * flag error but don't bail if jack detect is broken
 219                  * due to platform issues or bad BIOS/configuration
 220                  */
 221                 dev_err(runtime->dev,
 222                         "jack detection gpios not added, error %d\n", ret);
 223         }
 224
 225         /* See the comment in snd_cht_mc_probe() */
 226         if (ctx->quirks & QUIRK_PMC_PLT_CLK_0)
 227                 return 0;
 228
 229         /*
 230          * The firmware might enable the clock at
 231          * boot (this information may or may not
 232          * be reflected in the enable clock register).
 233          * To change the rate we must disable the clock
 234          * first to cover these cases. Due to common
 235          * clock framework restrictions that do not allow
 236          * to disable a clock that has not been enabled,
 237          * we need to enable the clock first.
 238          */
 239         ret = clk_prepare_enable(ctx->mclk);
 240         if (!ret)
 241                 clk_disable_unprepare(ctx->mclk);
 242
 243         ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
 244
 245         if (ret)
 246                 dev_err(runtime->dev, "unable to set MCLK rate\n");
 247
 248         return ret;
 249 }
 250
 251 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 252                             struct snd_pcm_hw_params *params)
 253 {
 254         struct snd_interval *rate = hw_param_interval(params,
 255                         SNDRV_PCM_HW_PARAM_RATE);
 256         struct snd_interval *channels = hw_param_interval(params,
 257                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 258         int ret = 0;
 259         unsigned int fmt = 0;
 260
 261         ret = snd_soc_dai_set_tdm_slot(asoc_rtd_to_cpu(rtd, 0), 0x3, 0x3, 2, 16);
 262         if (ret < 0) {
 263                 dev_err(rtd->dev, "can't set cpu_dai slot fmt: %d\n", ret);
 264                 return ret;
 265         }
 266
 267         fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_BP_FP;
 268
 269         ret = snd_soc_dai_set_fmt(asoc_rtd_to_cpu(rtd, 0), fmt);
 270         if (ret < 0) {
 271                 dev_err(rtd->dev, "can't set cpu_dai set fmt: %d\n", ret);
 272                 return ret;
 273         }
 274
 275         /* The DSP will convert the FE rate to 48k, stereo, 24bits */
 276         rate->min = rate->max = 48000;
 277         channels->min = channels->max = 2;
 278
 279         /* set SSP2 to 16-bit */
 280         params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 281         return 0;
 282 }
 283
 284 static int cht_aif1_startup(struct snd_pcm_substream *substream)
 285 {
 286         return snd_pcm_hw_constraint_single(substream->runtime,
 287                         SNDRV_PCM_HW_PARAM_RATE, 48000);
 288 }
 289
 290 static int cht_max98090_headset_init(struct snd_soc_component *component)
 291 {
 292         struct snd_soc_card *card = component->card;
 293         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
 294         struct snd_soc_jack *jack = &ctx->jack;
 295         int jack_type;
 296         int ret;
 297
 298         /*
 299          * TI supports 4 buttons headset detection
 300          * KEY_MEDIA
 301          * KEY_VOICECOMMAND
 302          * KEY_VOLUMEUP
 303          * KEY_VOLUMEDOWN
 304          */
 305         jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
 306                     SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 307                     SND_JACK_BTN_2 | SND_JACK_BTN_3;
 308
 309         ret = snd_soc_card_jack_new(card, "Headset Jack", jack_type, jack);
 310         if (ret) {
 311                 dev_err(card->dev, "Headset Jack creation failed %d\n", ret);
 312                 return ret;
 313         }
 314
 315         return ts3a227e_enable_jack_detect(component, jack);
 316 }
 317
 318 static const struct snd_soc_ops cht_aif1_ops = {
 319         .startup = cht_aif1_startup,
 320 };
 321
 322 static const struct snd_soc_ops cht_be_ssp2_ops = {
 323         .hw_params = cht_aif1_hw_params,
 324 };
 325
 326 static struct snd_soc_aux_dev cht_max98090_headset_dev = {
 327         .dlc = COMP_AUX("i2c-104C227E:00"),
 328         .init = cht_max98090_headset_init,
 329 };
 330
 331 SND_SOC_DAILINK_DEF(dummy,
 332         DAILINK_COMP_ARRAY(COMP_DUMMY()));
 333
 334 SND_SOC_DAILINK_DEF(media,
 335         DAILINK_COMP_ARRAY(COMP_CPU("media-cpu-dai")));
 336
 337 SND_SOC_DAILINK_DEF(deepbuffer,
 338         DAILINK_COMP_ARRAY(COMP_CPU("deepbuffer-cpu-dai")));
 339
 340 SND_SOC_DAILINK_DEF(ssp2_port,
 341         DAILINK_COMP_ARRAY(COMP_CPU("ssp2-port")));
 342 SND_SOC_DAILINK_DEF(ssp2_codec,
 343         DAILINK_COMP_ARRAY(COMP_CODEC("i2c-193C9890:00", "HiFi")));
 344
 345 SND_SOC_DAILINK_DEF(platform,
 346         DAILINK_COMP_ARRAY(COMP_PLATFORM("sst-mfld-platform")));
 347
 348 static struct snd_soc_dai_link cht_dailink[] = {
 349         [MERR_DPCM_AUDIO] = {
 350                 .name = "Audio Port",
 351                 .stream_name = "Audio",
 352                 .nonatomic = true,
 353                 .dynamic = 1,
 354                 .dpcm_playback = 1,
 355                 .dpcm_capture = 1,
 356                 .ops = &cht_aif1_ops,
 357                 SND_SOC_DAILINK_REG(media, dummy, platform),
 358         },
 359         [MERR_DPCM_DEEP_BUFFER] = {
 360                 .name = "Deep-Buffer Audio Port",
 361                 .stream_name = "Deep-Buffer Audio",
 362                 .nonatomic = true,
 363                 .dynamic = 1,
 364                 .dpcm_playback = 1,
 365                 .ops = &cht_aif1_ops,
 366                 SND_SOC_DAILINK_REG(deepbuffer, dummy, platform),
 367         },
 368         /* back ends */
 369         {
 370                 .name = "SSP2-Codec",
 371                 .id = 0,
 372                 .no_pcm = 1,
 373                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 374                                         | SND_SOC_DAIFMT_CBC_CFC,
 375                 .init = cht_codec_init,
 376                 .be_hw_params_fixup = cht_codec_fixup,
 377                 .dpcm_playback = 1,
 378                 .dpcm_capture = 1,
 379                 .ops = &cht_be_ssp2_ops,
 380                 SND_SOC_DAILINK_REG(ssp2_port, ssp2_codec, platform),
 381         },
 382 };
 383
 384 /* use space before codec name to simplify card ID, and simplify driver name */
 385 #define SOF_CARD_NAME "bytcht max98090" /* card name will be 'sof-bytcht max98090 */
 386 #define SOF_DRIVER_NAME "SOF"
 387
 388 #define CARD_NAME "chtmax98090"
 389 #define DRIVER_NAME NULL /* card name will be used for driver name */
 390
 391 /* SoC card */
 392 static struct snd_soc_card snd_soc_card_cht = {
 393         .owner = THIS_MODULE,
 394         .dai_link = cht_dailink,
 395         .num_links = ARRAY_SIZE(cht_dailink),
 396         .aux_dev = &cht_max98090_headset_dev,
 397         .num_aux_devs = 1,
 398         .dapm_widgets = cht_dapm_widgets,
 399         .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
 400         .dapm_routes = cht_audio_map,
 401         .num_dapm_routes = ARRAY_SIZE(cht_audio_map),
 402         .controls = cht_mc_controls,
 403         .num_controls = ARRAY_SIZE(cht_mc_controls),
 404 };
 405
 406 static const struct dmi_system_id cht_max98090_quirk_table[] = {
 407         {
 408                 /* Banjo model Chromebook */
 409                 .matches = {
 410                         DMI_MATCH(DMI_PRODUCT_NAME, "Banjo"),
 411                 },
 412                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 413         },
 414         {
 415                 /* Candy model Chromebook */
 416                 .matches = {
 417                         DMI_MATCH(DMI_PRODUCT_NAME, "Candy"),
 418                 },
 419                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 420         },
 421         {
 422                 /* Clapper model Chromebook */
 423                 .matches = {
 424                         DMI_MATCH(DMI_PRODUCT_NAME, "Clapper"),
 425                 },
 426                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 427         },
 428         {
 429                 /* Cyan model Chromebook */
 430                 .matches = {
 431                         DMI_MATCH(DMI_PRODUCT_NAME, "Cyan"),
 432                 },
 433                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 434         },
 435         {
 436                 /* Enguarde model Chromebook */
 437                 .matches = {
 438                         DMI_MATCH(DMI_PRODUCT_NAME, "Enguarde"),
 439                 },
 440                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 441         },
 442         {
 443                 /* Glimmer model Chromebook */
 444                 .matches = {
 445                         DMI_MATCH(DMI_PRODUCT_NAME, "Glimmer"),
 446                 },
 447                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 448         },
 449         {
 450                 /* Gnawty model Chromebook (Acer Chromebook CB3-111) */
 451                 .matches = {
 452                         DMI_MATCH(DMI_PRODUCT_NAME, "Gnawty"),
 453                 },
 454                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 455         },
 456         {
 457                 /* Heli model Chromebook */
 458                 .matches = {
 459                         DMI_MATCH(DMI_PRODUCT_NAME, "Heli"),
 460                 },
 461                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 462         },
 463         {
 464                 /* Kip model Chromebook */
 465                 .matches = {
 466                         DMI_MATCH(DMI_PRODUCT_NAME, "Kip"),
 467                 },
 468                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 469         },
 470         {
 471                 /* Ninja model Chromebook */
 472                 .matches = {
 473                         DMI_MATCH(DMI_PRODUCT_NAME, "Ninja"),
 474                 },
 475                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 476         },
 477         {
 478                 /* Orco model Chromebook */
 479                 .matches = {
 480                         DMI_MATCH(DMI_PRODUCT_NAME, "Orco"),
 481                 },
 482                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 483         },
 484         {
 485                 /* Quawks model Chromebook */
 486                 .matches = {
 487                         DMI_MATCH(DMI_PRODUCT_NAME, "Quawks"),
 488                 },
 489                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 490         },
 491         {
 492                 /* Rambi model Chromebook */
 493                 .matches = {
 494                         DMI_MATCH(DMI_PRODUCT_NAME, "Rambi"),
 495                 },
 496                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 497         },
 498         {
 499                 /* Squawks model Chromebook */
 500                 .matches = {
 501                         DMI_MATCH(DMI_PRODUCT_NAME, "Squawks"),
 502                 },
 503                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 504         },
 505         {
 506                 /* Sumo model Chromebook */
 507                 .matches = {
 508                         DMI_MATCH(DMI_PRODUCT_NAME, "Sumo"),
 509                 },
 510                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 511         },
 512         {
 513                 /* Swanky model Chromebook (Toshiba Chromebook 2) */
 514                 .matches = {
 515                         DMI_MATCH(DMI_PRODUCT_NAME, "Swanky"),
 516                 },
 517                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 518         },
 519         {
 520                 /* Winky model Chromebook */
 521                 .matches = {
 522                         DMI_MATCH(DMI_PRODUCT_NAME, "Winky"),
 523                 },
 524                 .driver_data = (void *)QUIRK_PMC_PLT_CLK_0,
 525         },
 526         {}
 527 };
 528
 529 static int snd_cht_mc_probe(struct platform_device *pdev)
 530 {
 531         const struct dmi_system_id *dmi_id;
 532         struct device *dev = &pdev->dev;
 533         int ret_val = 0;
 534         struct cht_mc_private *drv;
 535         const char *mclk_name;
 536         struct snd_soc_acpi_mach *mach;
 537         const char *platform_name;
 538         bool sof_parent;
 539
 540         drv = devm_kzalloc(dev, sizeof(*drv), GFP_KERNEL);
 541         if (!drv)
 542                 return -ENOMEM;
 543
 544         dmi_id = dmi_first_match(cht_max98090_quirk_table);
 545         if (dmi_id)
 546                 drv->quirks = (unsigned long)dmi_id->driver_data;
 547
 548         drv->ts3a227e_present = acpi_dev_found("104C227E");
 549         if (!drv->ts3a227e_present) {
 550                 /* no need probe TI jack detection chip */
 551                 snd_soc_card_cht.aux_dev = NULL;
 552                 snd_soc_card_cht.num_aux_devs = 0;
 553
 554                 ret_val = devm_acpi_dev_add_driver_gpios(dev->parent,
 555                                                          acpi_max98090_gpios);
 556                 if (ret_val)
 557                         dev_dbg(dev, "Unable to add GPIO mapping table\n");
 558         }
 559
 560         /* override platform name, if required */
 561         snd_soc_card_cht.dev = dev;
 562         mach = dev->platform_data;
 563         platform_name = mach->mach_params.platform;
 564
 565         ret_val = snd_soc_fixup_dai_links_platform_name(&snd_soc_card_cht,
 566                                                         platform_name);
 567         if (ret_val)
 568                 return ret_val;
 569
 570         /* register the soc card */
 571         snd_soc_card_set_drvdata(&snd_soc_card_cht, drv);
 572
 573         if (drv->quirks & QUIRK_PMC_PLT_CLK_0)
 574                 mclk_name = "pmc_plt_clk_0";
 575         else
 576                 mclk_name = "pmc_plt_clk_3";
 577
 578         drv->mclk = devm_clk_get(dev, mclk_name);
 579         if (IS_ERR(drv->mclk)) {
 580                 dev_err(dev,
 581                         "Failed to get MCLK from %s: %ld\n",
 582                         mclk_name, PTR_ERR(drv->mclk));
 583                 return PTR_ERR(drv->mclk);
 584         }
 585
 586         /*
 587          * Boards which have the MAX98090's clk connected to clk_0 do not seem
 588          * to like it if we muck with the clock. If we disable the clock when
 589          * it is unused we get "max98090 i2c-193C9890:00: PLL unlocked" errors
 590          * and the PLL never seems to lock again.
 591          * So for these boards we enable it here once and leave it at that.
 592          */
 593         if (drv->quirks & QUIRK_PMC_PLT_CLK_0) {
 594                 ret_val = clk_prepare_enable(drv->mclk);
 595                 if (ret_val < 0) {
 596                         dev_err(dev, "MCLK enable error: %d\n", ret_val);
 597                         return ret_val;
 598                 }
 599         }
 600
 601         sof_parent = snd_soc_acpi_sof_parent(dev);
 602
 603         /* set card and driver name */
 604         if (sof_parent) {
 605                 snd_soc_card_cht.name = SOF_CARD_NAME;
 606                 snd_soc_card_cht.driver_name = SOF_DRIVER_NAME;
 607         } else {
 608                 snd_soc_card_cht.name = CARD_NAME;
 609                 snd_soc_card_cht.driver_name = DRIVER_NAME;
 610         }
 611
 612         /* set pm ops */
 613         if (sof_parent)
 614                 dev->driver->pm = &snd_soc_pm_ops;
 615
 616         ret_val = devm_snd_soc_register_card(dev, &snd_soc_card_cht);
 617         if (ret_val) {
 618                 dev_err(dev,
 619                         "snd_soc_register_card failed %d\n", ret_val);
 620                 return ret_val;
 621         }
 622         platform_set_drvdata(pdev, &snd_soc_card_cht);
 623         return ret_val;
 624 }
 625
 626 static int snd_cht_mc_remove(struct platform_device *pdev)
 627 {
 628         struct snd_soc_card *card = platform_get_drvdata(pdev);
 629         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
 630
 631         if (ctx->quirks & QUIRK_PMC_PLT_CLK_0)
 632                 clk_disable_unprepare(ctx->mclk);
 633
 634         return 0;
 635 }
 636
 637 static struct platform_driver snd_cht_mc_driver = {
 638         .driver = {
 639                 .name = "cht-bsw-max98090",
 640         },
 641         .probe = snd_cht_mc_probe,
 642         .remove = snd_cht_mc_remove,
 643 };
 644
 645 module_platform_driver(snd_cht_mc_driver)
 646
 647 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
 648 MODULE_AUTHOR("Fang, Yang A <yang.a.fang@intel.com>");
 649 MODULE_LICENSE("GPL v2");
 650 MODULE_ALIAS("platform:cht-bsw-max98090");