sound/soc/intel/boards/bytcr_rt5640.c

   1 /*
   2  *  byt_cr_dpcm_rt5640.c - ASoc Machine driver for Intel Byt CR platform
   3  *
   4  *  Copyright (C) 2014 Intel Corp
   5  *  Author: Subhransu S. Prusty <subhransu.s.prusty@intel.com>
   6  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; version 2 of the License.
  11  *
  12  *  This program is distributed in the hope that it will be useful, but
  13  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  *  General Public License for more details.
  16  *
  17  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  18  */
  19
  20 #include <linux/init.h>
  21 #include <linux/module.h>
  22 #include <linux/platform_device.h>
  23 #include <linux/acpi.h>
  24 #include <linux/device.h>
  25 #include <linux/dmi.h>
  26 #include <linux/slab.h>
  27 #include <asm/cpu_device_id.h>
  28 #include <asm/platform_sst_audio.h>
  29 #include <linux/clk.h>
  30 #include <sound/pcm.h>
  31 #include <sound/pcm_params.h>
  32 #include <sound/soc.h>
  33 #include <sound/jack.h>
  34 #include "../../codecs/rt5640.h"
  35 #include "../atom/sst-atom-controls.h"
  36 #include "../common/sst-acpi.h"
  37 #include "../common/sst-dsp.h"
  38
  39 enum {
  40         BYT_RT5640_DMIC1_MAP,
  41         BYT_RT5640_DMIC2_MAP,
  42         BYT_RT5640_IN1_MAP,
  43         BYT_RT5640_IN3_MAP,
  44 };
  45
  46 #define BYT_RT5640_MAP(quirk)   ((quirk) & 0xff)
  47 #define BYT_RT5640_DMIC_EN      BIT(16)
  48 #define BYT_RT5640_MONO_SPEAKER BIT(17)
  49 #define BYT_RT5640_DIFF_MIC     BIT(18) /* defaut is single-ended */
  50 #define BYT_RT5640_SSP2_AIF2     BIT(19) /* default is using AIF1  */
  51 #define BYT_RT5640_SSP0_AIF1     BIT(20)
  52 #define BYT_RT5640_SSP0_AIF2     BIT(21)
  53 #define BYT_RT5640_MCLK_EN      BIT(22)
  54 #define BYT_RT5640_MCLK_25MHZ   BIT(23)
  55
  56 struct byt_rt5640_private {
  57         struct clk *mclk;
  58 };
  59
  60 static unsigned long byt_rt5640_quirk = BYT_RT5640_MCLK_EN;
  61
  62 static void log_quirks(struct device *dev)
  63 {
  64         if (BYT_RT5640_MAP(byt_rt5640_quirk) == BYT_RT5640_DMIC1_MAP)
  65                 dev_info(dev, "quirk DMIC1_MAP enabled");
  66         if (BYT_RT5640_MAP(byt_rt5640_quirk) == BYT_RT5640_DMIC2_MAP)
  67                 dev_info(dev, "quirk DMIC2_MAP enabled");
  68         if (BYT_RT5640_MAP(byt_rt5640_quirk) == BYT_RT5640_IN1_MAP)
  69                 dev_info(dev, "quirk IN1_MAP enabled");
  70         if (BYT_RT5640_MAP(byt_rt5640_quirk) == BYT_RT5640_IN3_MAP)
  71                 dev_info(dev, "quirk IN3_MAP enabled");
  72         if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN)
  73                 dev_info(dev, "quirk DMIC enabled");
  74         if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER)
  75                 dev_info(dev, "quirk MONO_SPEAKER enabled");
  76         if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC)
  77                 dev_info(dev, "quirk DIFF_MIC enabled");
  78         if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2)
  79                 dev_info(dev, "quirk SSP2_AIF2 enabled");
  80         if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1)
  81                 dev_info(dev, "quirk SSP0_AIF1 enabled");
  82         if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)
  83                 dev_info(dev, "quirk SSP0_AIF2 enabled");
  84         if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN)
  85                 dev_info(dev, "quirk MCLK_EN enabled");
  86         if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
  87                 dev_info(dev, "quirk MCLK_25MHZ enabled");
  88 }
  89
  90
  91 #define BYT_CODEC_DAI1  "rt5640-aif1"
  92 #define BYT_CODEC_DAI2  "rt5640-aif2"
  93
  94 static inline struct snd_soc_dai *byt_get_codec_dai(struct snd_soc_card *card)
  95 {
  96         struct snd_soc_pcm_runtime *rtd;
  97
  98         list_for_each_entry(rtd, &card->rtd_list, list) {
  99                 if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI1,
 100                              strlen(BYT_CODEC_DAI1)))
 101                         return rtd->codec_dai;
 102                 if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI2,
 103                                 strlen(BYT_CODEC_DAI2)))
 104                         return rtd->codec_dai;
 105
 106         }
 107         return NULL;
 108 }
 109
 110 static int platform_clock_control(struct snd_soc_dapm_widget *w,
 111                                   struct snd_kcontrol *k, int  event)
 112 {
 113         struct snd_soc_dapm_context *dapm = w->dapm;
 114         struct snd_soc_card *card = dapm->card;
 115         struct snd_soc_dai *codec_dai;
 116         struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
 117         int ret;
 118
 119         codec_dai = byt_get_codec_dai(card);
 120         if (!codec_dai) {
 121                 dev_err(card->dev,
 122                         "Codec dai not found; Unable to set platform clock\n");
 123                 return -EIO;
 124         }
 125
 126         if (SND_SOC_DAPM_EVENT_ON(event)) {
 127                 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) {
 128                         ret = clk_prepare_enable(priv->mclk);
 129                         if (ret < 0) {
 130                                 dev_err(card->dev,
 131                                         "could not configure MCLK state");
 132                                 return ret;
 133                         }
 134                 }
 135                 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
 136                                              48000 * 512,
 137                                              SND_SOC_CLOCK_IN);
 138         } else {
 139                 /*
 140                  * Set codec clock source to internal clock before
 141                  * turning off the platform clock. Codec needs clock
 142                  * for Jack detection and button press
 143                  */
 144                 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK,
 145                                              48000 * 512,
 146                                              SND_SOC_CLOCK_IN);
 147                 if (!ret) {
 148                         if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk)
 149                                 clk_disable_unprepare(priv->mclk);
 150                 }
 151         }
 152
 153         if (ret < 0) {
 154                 dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
 155                 return ret;
 156         }
 157
 158         return 0;
 159 }
 160
 161 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
 162         SND_SOC_DAPM_HP("Headphone", NULL),
 163         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 164         SND_SOC_DAPM_MIC("Internal Mic", NULL),
 165         SND_SOC_DAPM_SPK("Speaker", NULL),
 166         SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
 167                             platform_clock_control, SND_SOC_DAPM_PRE_PMU |
 168                             SND_SOC_DAPM_POST_PMD),
 169
 170 };
 171
 172 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
 173         {"Headphone", NULL, "Platform Clock"},
 174         {"Headset Mic", NULL, "Platform Clock"},
 175         {"Headset Mic", NULL, "MICBIAS1"},
 176         {"IN2P", NULL, "Headset Mic"},
 177         {"Headphone", NULL, "HPOL"},
 178         {"Headphone", NULL, "HPOR"},
 179 };
 180
 181 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
 182         {"Internal Mic", NULL, "Platform Clock"},
 183         {"DMIC1", NULL, "Internal Mic"},
 184 };
 185
 186 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
 187         {"Internal Mic", NULL, "Platform Clock"},
 188         {"DMIC2", NULL, "Internal Mic"},
 189 };
 190
 191 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
 192         {"Internal Mic", NULL, "Platform Clock"},
 193         {"Internal Mic", NULL, "MICBIAS1"},
 194         {"IN1P", NULL, "Internal Mic"},
 195 };
 196
 197 static const struct snd_soc_dapm_route byt_rt5640_intmic_in3_map[] = {
 198         {"Internal Mic", NULL, "Platform Clock"},
 199         {"Internal Mic", NULL, "MICBIAS1"},
 200         {"IN3P", NULL, "Internal Mic"},
 201 };
 202
 203 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif1_map[] = {
 204         {"ssp2 Tx", NULL, "codec_out0"},
 205         {"ssp2 Tx", NULL, "codec_out1"},
 206         {"codec_in0", NULL, "ssp2 Rx"},
 207         {"codec_in1", NULL, "ssp2 Rx"},
 208
 209         {"AIF1 Playback", NULL, "ssp2 Tx"},
 210         {"ssp2 Rx", NULL, "AIF1 Capture"},
 211 };
 212
 213 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif2_map[] = {
 214         {"ssp2 Tx", NULL, "codec_out0"},
 215         {"ssp2 Tx", NULL, "codec_out1"},
 216         {"codec_in0", NULL, "ssp2 Rx"},
 217         {"codec_in1", NULL, "ssp2 Rx"},
 218
 219         {"AIF2 Playback", NULL, "ssp2 Tx"},
 220         {"ssp2 Rx", NULL, "AIF2 Capture"},
 221 };
 222
 223 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif1_map[] = {
 224         {"ssp0 Tx", NULL, "modem_out"},
 225         {"modem_in", NULL, "ssp0 Rx"},
 226
 227         {"AIF1 Playback", NULL, "ssp0 Tx"},
 228         {"ssp0 Rx", NULL, "AIF1 Capture"},
 229 };
 230
 231 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif2_map[] = {
 232         {"ssp0 Tx", NULL, "modem_out"},
 233         {"modem_in", NULL, "ssp0 Rx"},
 234
 235         {"AIF2 Playback", NULL, "ssp0 Tx"},
 236         {"ssp0 Rx", NULL, "AIF2 Capture"},
 237 };
 238
 239 static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = {
 240         {"Speaker", NULL, "Platform Clock"},
 241         {"Speaker", NULL, "SPOLP"},
 242         {"Speaker", NULL, "SPOLN"},
 243         {"Speaker", NULL, "SPORP"},
 244         {"Speaker", NULL, "SPORN"},
 245 };
 246
 247 static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = {
 248         {"Speaker", NULL, "Platform Clock"},
 249         {"Speaker", NULL, "SPOLP"},
 250         {"Speaker", NULL, "SPOLN"},
 251 };
 252
 253 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
 254         SOC_DAPM_PIN_SWITCH("Headphone"),
 255         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 256         SOC_DAPM_PIN_SWITCH("Internal Mic"),
 257         SOC_DAPM_PIN_SWITCH("Speaker"),
 258 };
 259
 260 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
 261                                         struct snd_pcm_hw_params *params)
 262 {
 263         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 264         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 265         int ret;
 266
 267         ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
 268                                      params_rate(params) * 512,
 269                                      SND_SOC_CLOCK_IN);
 270
 271         if (ret < 0) {
 272                 dev_err(rtd->dev, "can't set codec clock %d\n", ret);
 273                 return ret;
 274         }
 275
 276         if (!(byt_rt5640_quirk & BYT_RT5640_MCLK_EN)) {
 277                 /* use bitclock as PLL input */
 278                 if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
 279                         (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 280
 281                         /* 2x16 bit slots on SSP0 */
 282                         ret = snd_soc_dai_set_pll(codec_dai, 0,
 283                                                 RT5640_PLL1_S_BCLK1,
 284                                                 params_rate(params) * 32,
 285                                                 params_rate(params) * 512);
 286                 } else {
 287                         /* 2x15 bit slots on SSP2 */
 288                         ret = snd_soc_dai_set_pll(codec_dai, 0,
 289                                                 RT5640_PLL1_S_BCLK1,
 290                                                 params_rate(params) * 50,
 291                                                 params_rate(params) * 512);
 292                 }
 293         } else {
 294                 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
 295                         ret = snd_soc_dai_set_pll(codec_dai, 0,
 296                                                 RT5640_PLL1_S_MCLK,
 297                                                 25000000,
 298                                                 params_rate(params) * 512);
 299                 } else {
 300                         ret = snd_soc_dai_set_pll(codec_dai, 0,
 301                                                 RT5640_PLL1_S_MCLK,
 302                                                 19200000,
 303                                                 params_rate(params) * 512);
 304                 }
 305         }
 306
 307         if (ret < 0) {
 308                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
 309                 return ret;
 310         }
 311
 312         return 0;
 313 }
 314
 315 static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
 316 {
 317         byt_rt5640_quirk = (unsigned long)id->driver_data;
 318         return 1;
 319 }
 320
 321 static const struct dmi_system_id byt_rt5640_quirk_table[] = {
 322         {
 323                 .callback = byt_rt5640_quirk_cb,
 324                 .matches = {
 325                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 326                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
 327                 },
 328                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
 329                                                  BYT_RT5640_MCLK_EN),
 330         },
 331         {
 332                 .callback = byt_rt5640_quirk_cb,
 333                 .matches = {
 334                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 335                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"),
 336                 },
 337                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
 338                                                  BYT_RT5640_MONO_SPEAKER |
 339                                                  BYT_RT5640_DIFF_MIC |
 340                                                  BYT_RT5640_SSP0_AIF2 |
 341                                                  BYT_RT5640_MCLK_EN
 342                                                  ),
 343         },
 344         {
 345                 .callback = byt_rt5640_quirk_cb,
 346                 .matches = {
 347                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "DellInc."),
 348                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
 349                 },
 350                 .driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP |
 351                                                  BYT_RT5640_DMIC_EN |
 352                                                  BYT_RT5640_MCLK_EN),
 353         },
 354         {
 355                 .callback = byt_rt5640_quirk_cb,
 356                 .matches = {
 357                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 358                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
 359                 },
 360                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
 361                                                  BYT_RT5640_MCLK_EN),
 362         },
 363         {
 364                 .callback = byt_rt5640_quirk_cb,
 365                 .matches = {
 366                         DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"),
 367                         DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"),
 368                 },
 369                 .driver_data = (unsigned long *)(BYT_RT5640_DMIC1_MAP |
 370                                                  BYT_RT5640_DMIC_EN),
 371         },
 372         {
 373                 .callback = byt_rt5640_quirk_cb,
 374                 .matches = {
 375                         DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
 376                         DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
 377                 },
 378                 .driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP |
 379                                                 BYT_RT5640_MCLK_EN |
 380                                                 BYT_RT5640_SSP0_AIF1),
 381         },
 382         {
 383                 .callback = byt_rt5640_quirk_cb,
 384                 .matches = {
 385                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 386                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
 387                 },
 388                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
 389                                                  BYT_RT5640_MCLK_EN |
 390                                                  BYT_RT5640_SSP0_AIF1),
 391
 392         },
 393         {
 394                 .callback = byt_rt5640_quirk_cb,
 395                 .matches = {
 396                         DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
 397                 },
 398                 .driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP |
 399                                                  BYT_RT5640_MCLK_EN |
 400                                                  BYT_RT5640_SSP0_AIF1),
 401
 402         },
 403         {}
 404 };
 405
 406 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
 407 {
 408         int ret;
 409         struct snd_soc_codec *codec = runtime->codec;
 410         struct snd_soc_card *card = runtime->card;
 411         const struct snd_soc_dapm_route *custom_map;
 412         struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
 413         int num_routes;
 414
 415         card->dapm.idle_bias_off = true;
 416
 417         rt5640_sel_asrc_clk_src(codec,
 418                                 RT5640_DA_STEREO_FILTER |
 419                                 RT5640_DA_MONO_L_FILTER |
 420                                 RT5640_DA_MONO_R_FILTER |
 421                                 RT5640_AD_STEREO_FILTER |
 422                                 RT5640_AD_MONO_L_FILTER |
 423                                 RT5640_AD_MONO_R_FILTER,
 424                                 RT5640_CLK_SEL_ASRC);
 425
 426         ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
 427                                         ARRAY_SIZE(byt_rt5640_controls));
 428         if (ret) {
 429                 dev_err(card->dev, "unable to add card controls\n");
 430                 return ret;
 431         }
 432
 433         switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
 434         case BYT_RT5640_IN1_MAP:
 435                 custom_map = byt_rt5640_intmic_in1_map;
 436                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
 437                 break;
 438         case BYT_RT5640_IN3_MAP:
 439                 custom_map = byt_rt5640_intmic_in3_map;
 440                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in3_map);
 441                 break;
 442         case BYT_RT5640_DMIC2_MAP:
 443                 custom_map = byt_rt5640_intmic_dmic2_map;
 444                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
 445                 break;
 446         default:
 447                 custom_map = byt_rt5640_intmic_dmic1_map;
 448                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
 449         }
 450
 451         ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
 452         if (ret)
 453                 return ret;
 454
 455         if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
 456                 ret = snd_soc_dapm_add_routes(&card->dapm,
 457                                         byt_rt5640_ssp2_aif2_map,
 458                                         ARRAY_SIZE(byt_rt5640_ssp2_aif2_map));
 459         } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
 460                 ret = snd_soc_dapm_add_routes(&card->dapm,
 461                                         byt_rt5640_ssp0_aif1_map,
 462                                         ARRAY_SIZE(byt_rt5640_ssp0_aif1_map));
 463         } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
 464                 ret = snd_soc_dapm_add_routes(&card->dapm,
 465                                         byt_rt5640_ssp0_aif2_map,
 466                                         ARRAY_SIZE(byt_rt5640_ssp0_aif2_map));
 467         } else {
 468                 ret = snd_soc_dapm_add_routes(&card->dapm,
 469                                         byt_rt5640_ssp2_aif1_map,
 470                                         ARRAY_SIZE(byt_rt5640_ssp2_aif1_map));
 471         }
 472         if (ret)
 473                 return ret;
 474
 475         if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) {
 476                 ret = snd_soc_dapm_add_routes(&card->dapm,
 477                                         byt_rt5640_mono_spk_map,
 478                                         ARRAY_SIZE(byt_rt5640_mono_spk_map));
 479         } else {
 480                 ret = snd_soc_dapm_add_routes(&card->dapm,
 481                                         byt_rt5640_stereo_spk_map,
 482                                         ARRAY_SIZE(byt_rt5640_stereo_spk_map));
 483         }
 484         if (ret)
 485                 return ret;
 486
 487         if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) {
 488                 snd_soc_update_bits(codec,  RT5640_IN1_IN2, RT5640_IN_DF1,
 489                                     RT5640_IN_DF1);
 490         }
 491
 492         if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
 493                 ret = rt5640_dmic_enable(codec, 0, 0);
 494                 if (ret)
 495                         return ret;
 496         }
 497
 498         snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
 499         snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
 500
 501         if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) {
 502                 /*
 503                  * The firmware might enable the clock at
 504                  * boot (this information may or may not
 505                  * be reflected in the enable clock register).
 506                  * To change the rate we must disable the clock
 507                  * first to cover these cases. Due to common
 508                  * clock framework restrictions that do not allow
 509                  * to disable a clock that has not been enabled,
 510                  * we need to enable the clock first.
 511                  */
 512                 ret = clk_prepare_enable(priv->mclk);
 513                 if (!ret)
 514                         clk_disable_unprepare(priv->mclk);
 515
 516                 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
 517                         ret = clk_set_rate(priv->mclk, 25000000);
 518                 else
 519                         ret = clk_set_rate(priv->mclk, 19200000);
 520
 521                 if (ret)
 522                         dev_err(card->dev, "unable to set MCLK rate\n");
 523         }
 524
 525         return ret;
 526 }
 527
 528 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
 529         .formats = SNDRV_PCM_FMTBIT_S24_LE,
 530         .rate_min = 48000,
 531         .rate_max = 48000,
 532         .channels_min = 2,
 533         .channels_max = 2,
 534 };
 535
 536 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 537                             struct snd_pcm_hw_params *params)
 538 {
 539         struct snd_interval *rate = hw_param_interval(params,
 540                         SNDRV_PCM_HW_PARAM_RATE);
 541         struct snd_interval *channels = hw_param_interval(params,
 542                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 543         int ret;
 544
 545         /* The DSP will covert the FE rate to 48k, stereo */
 546         rate->min = rate->max = 48000;
 547         channels->min = channels->max = 2;
 548
 549         if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
 550                 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 551
 552                 /* set SSP0 to 16-bit */
 553                 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 554
 555                 /*
 556                  * Default mode for SSP configuration is TDM 4 slot, override config
 557                  * with explicit setting to I2S 2ch 16-bit. The word length is set with
 558                  * dai_set_tdm_slot() since there is no other API exposed
 559                  */
 560                 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
 561                                         SND_SOC_DAIFMT_I2S     |
 562                                         SND_SOC_DAIFMT_NB_IF   |
 563                                         SND_SOC_DAIFMT_CBS_CFS
 564                         );
 565                 if (ret < 0) {
 566                         dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 567                         return ret;
 568                 }
 569
 570                 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
 571                 if (ret < 0) {
 572                         dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
 573                         return ret;
 574                 }
 575
 576         } else {
 577
 578                 /* set SSP2 to 24-bit */
 579                 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 580
 581                 /*
 582                  * Default mode for SSP configuration is TDM 4 slot, override config
 583                  * with explicit setting to I2S 2ch 24-bit. The word length is set with
 584                  * dai_set_tdm_slot() since there is no other API exposed
 585                  */
 586                 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
 587                                         SND_SOC_DAIFMT_I2S     |
 588                                         SND_SOC_DAIFMT_NB_IF   |
 589                                         SND_SOC_DAIFMT_CBS_CFS
 590                         );
 591                 if (ret < 0) {
 592                         dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 593                         return ret;
 594                 }
 595
 596                 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
 597                 if (ret < 0) {
 598                         dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
 599                         return ret;
 600                 }
 601         }
 602         return 0;
 603 }
 604
 605 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
 606 {
 607         return snd_pcm_hw_constraint_single(substream->runtime,
 608                         SNDRV_PCM_HW_PARAM_RATE, 48000);
 609 }
 610
 611 static struct snd_soc_ops byt_rt5640_aif1_ops = {
 612         .startup = byt_rt5640_aif1_startup,
 613 };
 614
 615 static struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
 616         .hw_params = byt_rt5640_aif1_hw_params,
 617 };
 618
 619 static struct snd_soc_dai_link byt_rt5640_dais[] = {
 620         [MERR_DPCM_AUDIO] = {
 621                 .name = "Baytrail Audio Port",
 622                 .stream_name = "Baytrail Audio",
 623                 .cpu_dai_name = "media-cpu-dai",
 624                 .codec_dai_name = "snd-soc-dummy-dai",
 625                 .codec_name = "snd-soc-dummy",
 626                 .platform_name = "sst-mfld-platform",
 627                 .nonatomic = true,
 628                 .dynamic = 1,
 629                 .dpcm_playback = 1,
 630                 .dpcm_capture = 1,
 631                 .ops = &byt_rt5640_aif1_ops,
 632         },
 633         [MERR_DPCM_DEEP_BUFFER] = {
 634                 .name = "Deep-Buffer Audio Port",
 635                 .stream_name = "Deep-Buffer Audio",
 636                 .cpu_dai_name = "deepbuffer-cpu-dai",
 637                 .codec_dai_name = "snd-soc-dummy-dai",
 638                 .codec_name = "snd-soc-dummy",
 639                 .platform_name = "sst-mfld-platform",
 640                 .nonatomic = true,
 641                 .dynamic = 1,
 642                 .dpcm_playback = 1,
 643                 .ops = &byt_rt5640_aif1_ops,
 644         },
 645         [MERR_DPCM_COMPR] = {
 646                 .name = "Baytrail Compressed Port",
 647                 .stream_name = "Baytrail Compress",
 648                 .cpu_dai_name = "compress-cpu-dai",
 649                 .codec_dai_name = "snd-soc-dummy-dai",
 650                 .codec_name = "snd-soc-dummy",
 651                 .platform_name = "sst-mfld-platform",
 652         },
 653                 /* back ends */
 654         {
 655                 .name = "SSP2-Codec",
 656                 .id = 1,
 657                 .cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */
 658                 .platform_name = "sst-mfld-platform",
 659                 .no_pcm = 1,
 660                 .codec_dai_name = "rt5640-aif1", /* changed w/ quirk */
 661                 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */
 662                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 663                                                 | SND_SOC_DAIFMT_CBS_CFS,
 664                 .be_hw_params_fixup = byt_rt5640_codec_fixup,
 665                 .ignore_suspend = 1,
 666                 .nonatomic = true,
 667                 .dpcm_playback = 1,
 668                 .dpcm_capture = 1,
 669                 .init = byt_rt5640_init,
 670                 .ops = &byt_rt5640_be_ssp2_ops,
 671         },
 672 };
 673
 674 /* SoC card */
 675 static struct snd_soc_card byt_rt5640_card = {
 676         .name = "bytcr-rt5640",
 677         .owner = THIS_MODULE,
 678         .dai_link = byt_rt5640_dais,
 679         .num_links = ARRAY_SIZE(byt_rt5640_dais),
 680         .dapm_widgets = byt_rt5640_widgets,
 681         .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
 682         .dapm_routes = byt_rt5640_audio_map,
 683         .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
 684         .fully_routed = true,
 685 };
 686
 687 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
 688 static char byt_rt5640_codec_aif_name[12]; /*  = "rt5640-aif[1|2]" */
 689 static char byt_rt5640_cpu_dai_name[10]; /*  = "ssp[0|2]-port" */
 690
 691 static bool is_valleyview(void)
 692 {
 693         static const struct x86_cpu_id cpu_ids[] = {
 694                 { X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
 695                 {}
 696         };
 697
 698         if (!x86_match_cpu(cpu_ids))
 699                 return false;
 700         return true;
 701 }
 702
 703
 704 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
 705 {
 706         int ret_val = 0;
 707         struct sst_acpi_mach *mach;
 708         const char *i2c_name = NULL;
 709         int i;
 710         int dai_index;
 711         struct byt_rt5640_private *priv;
 712
 713         priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC);
 714         if (!priv)
 715                 return -ENOMEM;
 716
 717         /* register the soc card */
 718         byt_rt5640_card.dev = &pdev->dev;
 719         mach = byt_rt5640_card.dev->platform_data;
 720         snd_soc_card_set_drvdata(&byt_rt5640_card, priv);
 721
 722         /* fix index of codec dai */
 723         dai_index = MERR_DPCM_COMPR + 1;
 724         for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
 725                 if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
 726                         dai_index = i;
 727                         break;
 728                 }
 729         }
 730
 731         /* fixup codec name based on HID */
 732         i2c_name = sst_acpi_find_name_from_hid(mach->id);
 733         if (i2c_name != NULL) {
 734                 snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
 735                         "%s%s", "i2c-", i2c_name);
 736
 737                 byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
 738         }
 739
 740         /*
 741          * swap SSP0 if bytcr is detected
 742          * (will be overridden if DMI quirk is detected)
 743          */
 744         if (is_valleyview()) {
 745                 struct sst_platform_info *p_info = mach->pdata;
 746                 const struct sst_res_info *res_info = p_info->res_info;
 747
 748                 /* TODO: use CHAN package info from BIOS to detect AIF1/AIF2 */
 749                 if (res_info->acpi_ipc_irq_index == 0) {
 750                         byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
 751                 }
 752
 753                 /* change defaults for Baytrail-CR capture */
 754                 byt_rt5640_quirk |= BYT_RT5640_IN1_MAP;
 755                 byt_rt5640_quirk |= BYT_RT5640_DIFF_MIC;
 756         } else {
 757                 byt_rt5640_quirk |= (BYT_RT5640_DMIC1_MAP |
 758                                 BYT_RT5640_DMIC_EN);
 759         }
 760
 761         /* check quirks before creating card */
 762         dmi_check_system(byt_rt5640_quirk_table);
 763         log_quirks(&pdev->dev);
 764
 765         if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) ||
 766             (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 767
 768                 /* fixup codec aif name */
 769                 snprintf(byt_rt5640_codec_aif_name,
 770                         sizeof(byt_rt5640_codec_aif_name),
 771                         "%s", "rt5640-aif2");
 772
 773                 byt_rt5640_dais[dai_index].codec_dai_name =
 774                         byt_rt5640_codec_aif_name;
 775         }
 776
 777         if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
 778             (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 779
 780                 /* fixup cpu dai name name */
 781                 snprintf(byt_rt5640_cpu_dai_name,
 782                         sizeof(byt_rt5640_cpu_dai_name),
 783                         "%s", "ssp0-port");
 784
 785                 byt_rt5640_dais[dai_index].cpu_dai_name =
 786                         byt_rt5640_cpu_dai_name;
 787         }
 788
 789         if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && (is_valleyview())) {
 790                 priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
 791                 if (IS_ERR(priv->mclk)) {
 792                         dev_err(&pdev->dev,
 793                                 "Failed to get MCLK from pmc_plt_clk_3: %ld\n",
 794                                 PTR_ERR(priv->mclk));
 795                         return PTR_ERR(priv->mclk);
 796                 }
 797         }
 798
 799         ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
 800
 801         if (ret_val) {
 802                 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
 803                         ret_val);
 804                 return ret_val;
 805         }
 806         platform_set_drvdata(pdev, &byt_rt5640_card);
 807         return ret_val;
 808 }
 809
 810 static struct platform_driver snd_byt_rt5640_mc_driver = {
 811         .driver = {
 812                 .name = "bytcr_rt5640",
 813         },
 814         .probe = snd_byt_rt5640_mc_probe,
 815 };
 816
 817 module_platform_driver(snd_byt_rt5640_mc_driver);
 818
 819 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
 820 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
 821 MODULE_LICENSE("GPL v2");
 822 MODULE_ALIAS("platform:bytcr_rt5640");