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/moduleparam.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/acpi.h>
  25 #include <linux/device.h>
  26 #include <linux/dmi.h>
  27 #include <linux/slab.h>
  28 #include <asm/cpu_device_id.h>
  29 #include <asm/platform_sst_audio.h>
  30 #include <linux/clk.h>
  31 #include <sound/pcm.h>
  32 #include <sound/pcm_params.h>
  33 #include <sound/soc.h>
  34 #include <sound/jack.h>
  35 #include "../../codecs/rt5640.h"
  36 #include "../atom/sst-atom-controls.h"
  37 #include "../common/sst-acpi.h"
  38 #include "../common/sst-dsp.h"
  39
  40 enum {
  41         BYT_RT5640_DMIC1_MAP,
  42         BYT_RT5640_DMIC2_MAP,
  43         BYT_RT5640_IN1_MAP,
  44         BYT_RT5640_IN3_MAP,
  45 };
  46
  47 #define BYT_RT5640_MAP(quirk)   ((quirk) & 0xff)
  48 #define BYT_RT5640_DMIC_EN      BIT(16)
  49 #define BYT_RT5640_MONO_SPEAKER BIT(17)
  50 #define BYT_RT5640_DIFF_MIC     BIT(18) /* defaut is single-ended */
  51 #define BYT_RT5640_SSP2_AIF2     BIT(19) /* default is using AIF1  */
  52 #define BYT_RT5640_SSP0_AIF1     BIT(20)
  53 #define BYT_RT5640_SSP0_AIF2     BIT(21)
  54 #define BYT_RT5640_MCLK_EN      BIT(22)
  55 #define BYT_RT5640_MCLK_25MHZ   BIT(23)
  56
  57 struct byt_rt5640_private {
  58         struct clk *mclk;
  59 };
  60 static bool is_bytcr;
  61
  62 static unsigned long byt_rt5640_quirk = BYT_RT5640_MCLK_EN;
  63 static unsigned int quirk_override;
  64 module_param_named(quirk, quirk_override, uint, 0444);
  65 MODULE_PARM_DESC(quirk, "Board-specific quirk override");
  66
  67 static void log_quirks(struct device *dev)
  68 {
  69         int map;
  70         bool has_dmic = false;
  71         bool has_mclk = false;
  72         bool has_ssp0 = false;
  73         bool has_ssp0_aif1 = false;
  74         bool has_ssp0_aif2 = false;
  75         bool has_ssp2_aif2 = false;
  76
  77         map = BYT_RT5640_MAP(byt_rt5640_quirk);
  78         switch (map) {
  79         case BYT_RT5640_DMIC1_MAP:
  80                 dev_info(dev, "quirk DMIC1_MAP enabled\n");
  81                 has_dmic = true;
  82                 break;
  83         case BYT_RT5640_DMIC2_MAP:
  84                 dev_info(dev, "quirk DMIC2_MAP enabled\n");
  85                 has_dmic = true;
  86                 break;
  87         case BYT_RT5640_IN1_MAP:
  88                 dev_info(dev, "quirk IN1_MAP enabled\n");
  89                 break;
  90         case BYT_RT5640_IN3_MAP:
  91                 dev_info(dev, "quirk IN3_MAP enabled\n");
  92                 break;
  93         default:
  94                 dev_err(dev, "quirk map 0x%x is not supported, microphone input will not work\n", map);
  95                 break;
  96         }
  97         if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
  98                 if (has_dmic)
  99                         dev_info(dev, "quirk DMIC enabled\n");
 100                 else
 101                         dev_err(dev, "quirk DMIC enabled but no DMIC input set, will be ignored\n");
 102         }
 103         if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER)
 104                 dev_info(dev, "quirk MONO_SPEAKER enabled\n");
 105         if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) {
 106                 if (!has_dmic)
 107                         dev_info(dev, "quirk DIFF_MIC enabled\n");
 108                 else
 109                         dev_info(dev, "quirk DIFF_MIC enabled but DMIC input selected, will be ignored\n");
 110         }
 111         if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
 112                 dev_info(dev, "quirk SSP0_AIF1 enabled\n");
 113                 has_ssp0 = true;
 114                 has_ssp0_aif1 = true;
 115         }
 116         if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
 117                 dev_info(dev, "quirk SSP0_AIF2 enabled\n");
 118                 has_ssp0 = true;
 119                 has_ssp0_aif2 = true;
 120         }
 121         if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
 122                 dev_info(dev, "quirk SSP2_AIF2 enabled\n");
 123                 has_ssp2_aif2 = true;
 124         }
 125         if (is_bytcr && !has_ssp0)
 126                 dev_err(dev, "Invalid routing, bytcr detected but no SSP0-based quirk, audio cannot work with SSP2 on bytcr\n");
 127         if (has_ssp0_aif1 && has_ssp0_aif2)
 128                 dev_err(dev, "Invalid routing, SSP0 cannot be connected to both AIF1 and AIF2\n");
 129         if (has_ssp0 && has_ssp2_aif2)
 130                 dev_err(dev, "Invalid routing, cannot have both SSP0 and SSP2 connected to codec\n");
 131
 132         if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
 133                 dev_info(dev, "quirk MCLK_EN enabled\n");
 134                 has_mclk = true;
 135         }
 136         if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
 137                 if (has_mclk)
 138                         dev_info(dev, "quirk MCLK_25MHZ enabled\n");
 139                 else
 140                         dev_err(dev, "quirk MCLK_25MHZ enabled but quirk MCLK not selected, will be ignored\n");
 141         }
 142 }
 143
 144
 145 #define BYT_CODEC_DAI1  "rt5640-aif1"
 146 #define BYT_CODEC_DAI2  "rt5640-aif2"
 147
 148 static inline struct snd_soc_dai *byt_get_codec_dai(struct snd_soc_card *card)
 149 {
 150         struct snd_soc_pcm_runtime *rtd;
 151
 152         list_for_each_entry(rtd, &card->rtd_list, list) {
 153                 if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI1,
 154                              strlen(BYT_CODEC_DAI1)))
 155                         return rtd->codec_dai;
 156                 if (!strncmp(rtd->codec_dai->name, BYT_CODEC_DAI2,
 157                                 strlen(BYT_CODEC_DAI2)))
 158                         return rtd->codec_dai;
 159
 160         }
 161         return NULL;
 162 }
 163
 164 static int platform_clock_control(struct snd_soc_dapm_widget *w,
 165                                   struct snd_kcontrol *k, int  event)
 166 {
 167         struct snd_soc_dapm_context *dapm = w->dapm;
 168         struct snd_soc_card *card = dapm->card;
 169         struct snd_soc_dai *codec_dai;
 170         struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
 171         int ret;
 172
 173         codec_dai = byt_get_codec_dai(card);
 174         if (!codec_dai) {
 175                 dev_err(card->dev,
 176                         "Codec dai not found; Unable to set platform clock\n");
 177                 return -EIO;
 178         }
 179
 180         if (SND_SOC_DAPM_EVENT_ON(event)) {
 181                 if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) {
 182                         ret = clk_prepare_enable(priv->mclk);
 183                         if (ret < 0) {
 184                                 dev_err(card->dev,
 185                                         "could not configure MCLK state\n");
 186                                 return ret;
 187                         }
 188                 }
 189                 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
 190                                              48000 * 512,
 191                                              SND_SOC_CLOCK_IN);
 192         } else {
 193                 /*
 194                  * Set codec clock source to internal clock before
 195                  * turning off the platform clock. Codec needs clock
 196                  * for Jack detection and button press
 197                  */
 198                 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK,
 199                                              48000 * 512,
 200                                              SND_SOC_CLOCK_IN);
 201                 if (!ret) {
 202                         if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk)
 203                                 clk_disable_unprepare(priv->mclk);
 204                 }
 205         }
 206
 207         if (ret < 0) {
 208                 dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
 209                 return ret;
 210         }
 211
 212         return 0;
 213 }
 214
 215 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
 216         SND_SOC_DAPM_HP("Headphone", NULL),
 217         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 218         SND_SOC_DAPM_MIC("Internal Mic", NULL),
 219         SND_SOC_DAPM_SPK("Speaker", NULL),
 220         SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
 221                             platform_clock_control, SND_SOC_DAPM_PRE_PMU |
 222                             SND_SOC_DAPM_POST_PMD),
 223
 224 };
 225
 226 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
 227         {"Headphone", NULL, "Platform Clock"},
 228         {"Headset Mic", NULL, "Platform Clock"},
 229         {"Internal Mic", NULL, "Platform Clock"},
 230         {"Speaker", NULL, "Platform Clock"},
 231
 232         {"Headset Mic", NULL, "MICBIAS1"},
 233         {"IN2P", NULL, "Headset Mic"},
 234         {"Headphone", NULL, "HPOL"},
 235         {"Headphone", NULL, "HPOR"},
 236 };
 237
 238 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
 239         {"DMIC1", NULL, "Internal Mic"},
 240 };
 241
 242 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
 243         {"DMIC2", NULL, "Internal Mic"},
 244 };
 245
 246 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
 247         {"Internal Mic", NULL, "MICBIAS1"},
 248         {"IN1P", NULL, "Internal Mic"},
 249 };
 250
 251 static const struct snd_soc_dapm_route byt_rt5640_intmic_in3_map[] = {
 252         {"Internal Mic", NULL, "MICBIAS1"},
 253         {"IN3P", NULL, "Internal Mic"},
 254 };
 255
 256 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif1_map[] = {
 257         {"ssp2 Tx", NULL, "codec_out0"},
 258         {"ssp2 Tx", NULL, "codec_out1"},
 259         {"codec_in0", NULL, "ssp2 Rx"},
 260         {"codec_in1", NULL, "ssp2 Rx"},
 261
 262         {"AIF1 Playback", NULL, "ssp2 Tx"},
 263         {"ssp2 Rx", NULL, "AIF1 Capture"},
 264 };
 265
 266 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif2_map[] = {
 267         {"ssp2 Tx", NULL, "codec_out0"},
 268         {"ssp2 Tx", NULL, "codec_out1"},
 269         {"codec_in0", NULL, "ssp2 Rx"},
 270         {"codec_in1", NULL, "ssp2 Rx"},
 271
 272         {"AIF2 Playback", NULL, "ssp2 Tx"},
 273         {"ssp2 Rx", NULL, "AIF2 Capture"},
 274 };
 275
 276 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif1_map[] = {
 277         {"ssp0 Tx", NULL, "modem_out"},
 278         {"modem_in", NULL, "ssp0 Rx"},
 279
 280         {"AIF1 Playback", NULL, "ssp0 Tx"},
 281         {"ssp0 Rx", NULL, "AIF1 Capture"},
 282 };
 283
 284 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif2_map[] = {
 285         {"ssp0 Tx", NULL, "modem_out"},
 286         {"modem_in", NULL, "ssp0 Rx"},
 287
 288         {"AIF2 Playback", NULL, "ssp0 Tx"},
 289         {"ssp0 Rx", NULL, "AIF2 Capture"},
 290 };
 291
 292 static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = {
 293         {"Speaker", NULL, "SPOLP"},
 294         {"Speaker", NULL, "SPOLN"},
 295         {"Speaker", NULL, "SPORP"},
 296         {"Speaker", NULL, "SPORN"},
 297 };
 298
 299 static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = {
 300         {"Speaker", NULL, "SPOLP"},
 301         {"Speaker", NULL, "SPOLN"},
 302 };
 303
 304 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
 305         SOC_DAPM_PIN_SWITCH("Headphone"),
 306         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 307         SOC_DAPM_PIN_SWITCH("Internal Mic"),
 308         SOC_DAPM_PIN_SWITCH("Speaker"),
 309 };
 310
 311 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
 312                                         struct snd_pcm_hw_params *params)
 313 {
 314         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 315         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 316         int ret;
 317
 318         ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
 319                                      params_rate(params) * 512,
 320                                      SND_SOC_CLOCK_IN);
 321
 322         if (ret < 0) {
 323                 dev_err(rtd->dev, "can't set codec clock %d\n", ret);
 324                 return ret;
 325         }
 326
 327         if (!(byt_rt5640_quirk & BYT_RT5640_MCLK_EN)) {
 328                 /* use bitclock as PLL input */
 329                 if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
 330                         (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 331
 332                         /* 2x16 bit slots on SSP0 */
 333                         ret = snd_soc_dai_set_pll(codec_dai, 0,
 334                                                 RT5640_PLL1_S_BCLK1,
 335                                                 params_rate(params) * 32,
 336                                                 params_rate(params) * 512);
 337                 } else {
 338                         /* 2x15 bit slots on SSP2 */
 339                         ret = snd_soc_dai_set_pll(codec_dai, 0,
 340                                                 RT5640_PLL1_S_BCLK1,
 341                                                 params_rate(params) * 50,
 342                                                 params_rate(params) * 512);
 343                 }
 344         } else {
 345                 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
 346                         ret = snd_soc_dai_set_pll(codec_dai, 0,
 347                                                 RT5640_PLL1_S_MCLK,
 348                                                 25000000,
 349                                                 params_rate(params) * 512);
 350                 } else {
 351                         ret = snd_soc_dai_set_pll(codec_dai, 0,
 352                                                 RT5640_PLL1_S_MCLK,
 353                                                 19200000,
 354                                                 params_rate(params) * 512);
 355                 }
 356         }
 357
 358         if (ret < 0) {
 359                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
 360                 return ret;
 361         }
 362
 363         return 0;
 364 }
 365
 366 static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
 367 {
 368         byt_rt5640_quirk = (unsigned long)id->driver_data;
 369         return 1;
 370 }
 371
 372 static const struct dmi_system_id byt_rt5640_quirk_table[] = {
 373         {
 374                 .callback = byt_rt5640_quirk_cb,
 375                 .matches = {
 376                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 377                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
 378                 },
 379                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
 380                                                  BYT_RT5640_MCLK_EN),
 381         },
 382         {
 383                 .callback = byt_rt5640_quirk_cb,
 384                 .matches = {
 385                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 386                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"),
 387                 },
 388                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
 389                                                  BYT_RT5640_MONO_SPEAKER |
 390                                                  BYT_RT5640_DIFF_MIC |
 391                                                  BYT_RT5640_SSP0_AIF2 |
 392                                                  BYT_RT5640_MCLK_EN
 393                                                  ),
 394         },
 395         {
 396                 .callback = byt_rt5640_quirk_cb,
 397                 .matches = {
 398                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "DellInc."),
 399                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
 400                 },
 401                 .driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP |
 402                                                  BYT_RT5640_DMIC_EN |
 403                                                  BYT_RT5640_MCLK_EN),
 404         },
 405         {
 406                 .callback = byt_rt5640_quirk_cb,
 407                 .matches = {
 408                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 409                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
 410                 },
 411                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
 412                                                  BYT_RT5640_MCLK_EN),
 413         },
 414         {
 415                 .callback = byt_rt5640_quirk_cb,
 416                 .matches = {
 417                         DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"),
 418                         DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"),
 419                 },
 420                 .driver_data = (unsigned long *)(BYT_RT5640_DMIC1_MAP |
 421                                                  BYT_RT5640_DMIC_EN),
 422         },
 423         {
 424                 .callback = byt_rt5640_quirk_cb,
 425                 .matches = {
 426                         DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
 427                         DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
 428                 },
 429                 .driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP |
 430                                                 BYT_RT5640_MCLK_EN |
 431                                                 BYT_RT5640_SSP0_AIF1),
 432         },
 433         {
 434                 .callback = byt_rt5640_quirk_cb,
 435                 .matches = {
 436                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 437                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
 438                 },
 439                 .driver_data = (unsigned long *)(BYT_RT5640_IN1_MAP |
 440                                                  BYT_RT5640_MCLK_EN |
 441                                                  BYT_RT5640_SSP0_AIF1),
 442
 443         },
 444         {
 445                 .callback = byt_rt5640_quirk_cb,
 446                 .matches = {
 447                         DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
 448                 },
 449                 .driver_data = (unsigned long *)(BYT_RT5640_IN3_MAP |
 450                                                  BYT_RT5640_MCLK_EN |
 451                                                  BYT_RT5640_SSP0_AIF1),
 452
 453         },
 454         {}
 455 };
 456
 457 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
 458 {
 459         int ret;
 460         struct snd_soc_codec *codec = runtime->codec;
 461         struct snd_soc_card *card = runtime->card;
 462         const struct snd_soc_dapm_route *custom_map;
 463         struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
 464         int num_routes;
 465
 466         card->dapm.idle_bias_off = true;
 467
 468         rt5640_sel_asrc_clk_src(codec,
 469                                 RT5640_DA_STEREO_FILTER |
 470                                 RT5640_DA_MONO_L_FILTER |
 471                                 RT5640_DA_MONO_R_FILTER |
 472                                 RT5640_AD_STEREO_FILTER |
 473                                 RT5640_AD_MONO_L_FILTER |
 474                                 RT5640_AD_MONO_R_FILTER,
 475                                 RT5640_CLK_SEL_ASRC);
 476
 477         ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
 478                                         ARRAY_SIZE(byt_rt5640_controls));
 479         if (ret) {
 480                 dev_err(card->dev, "unable to add card controls\n");
 481                 return ret;
 482         }
 483
 484         switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
 485         case BYT_RT5640_IN1_MAP:
 486                 custom_map = byt_rt5640_intmic_in1_map;
 487                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
 488                 break;
 489         case BYT_RT5640_IN3_MAP:
 490                 custom_map = byt_rt5640_intmic_in3_map;
 491                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in3_map);
 492                 break;
 493         case BYT_RT5640_DMIC2_MAP:
 494                 custom_map = byt_rt5640_intmic_dmic2_map;
 495                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
 496                 break;
 497         default:
 498                 custom_map = byt_rt5640_intmic_dmic1_map;
 499                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
 500         }
 501
 502         ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
 503         if (ret)
 504                 return ret;
 505
 506         if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
 507                 ret = snd_soc_dapm_add_routes(&card->dapm,
 508                                         byt_rt5640_ssp2_aif2_map,
 509                                         ARRAY_SIZE(byt_rt5640_ssp2_aif2_map));
 510         } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
 511                 ret = snd_soc_dapm_add_routes(&card->dapm,
 512                                         byt_rt5640_ssp0_aif1_map,
 513                                         ARRAY_SIZE(byt_rt5640_ssp0_aif1_map));
 514         } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
 515                 ret = snd_soc_dapm_add_routes(&card->dapm,
 516                                         byt_rt5640_ssp0_aif2_map,
 517                                         ARRAY_SIZE(byt_rt5640_ssp0_aif2_map));
 518         } else {
 519                 ret = snd_soc_dapm_add_routes(&card->dapm,
 520                                         byt_rt5640_ssp2_aif1_map,
 521                                         ARRAY_SIZE(byt_rt5640_ssp2_aif1_map));
 522         }
 523         if (ret)
 524                 return ret;
 525
 526         if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) {
 527                 ret = snd_soc_dapm_add_routes(&card->dapm,
 528                                         byt_rt5640_mono_spk_map,
 529                                         ARRAY_SIZE(byt_rt5640_mono_spk_map));
 530         } else {
 531                 ret = snd_soc_dapm_add_routes(&card->dapm,
 532                                         byt_rt5640_stereo_spk_map,
 533                                         ARRAY_SIZE(byt_rt5640_stereo_spk_map));
 534         }
 535         if (ret)
 536                 return ret;
 537
 538         if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) {
 539                 snd_soc_update_bits(codec,  RT5640_IN1_IN2, RT5640_IN_DF1,
 540                                     RT5640_IN_DF1);
 541         }
 542
 543         if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
 544                 ret = rt5640_dmic_enable(codec, 0, 0);
 545                 if (ret)
 546                         return ret;
 547         }
 548
 549         snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
 550         snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
 551
 552         if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && priv->mclk) {
 553                 /*
 554                  * The firmware might enable the clock at
 555                  * boot (this information may or may not
 556                  * be reflected in the enable clock register).
 557                  * To change the rate we must disable the clock
 558                  * first to cover these cases. Due to common
 559                  * clock framework restrictions that do not allow
 560                  * to disable a clock that has not been enabled,
 561                  * we need to enable the clock first.
 562                  */
 563                 ret = clk_prepare_enable(priv->mclk);
 564                 if (!ret)
 565                         clk_disable_unprepare(priv->mclk);
 566
 567                 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
 568                         ret = clk_set_rate(priv->mclk, 25000000);
 569                 else
 570                         ret = clk_set_rate(priv->mclk, 19200000);
 571
 572                 if (ret)
 573                         dev_err(card->dev, "unable to set MCLK rate\n");
 574         }
 575
 576         return ret;
 577 }
 578
 579 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
 580         .formats = SNDRV_PCM_FMTBIT_S24_LE,
 581         .rate_min = 48000,
 582         .rate_max = 48000,
 583         .channels_min = 2,
 584         .channels_max = 2,
 585 };
 586
 587 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 588                             struct snd_pcm_hw_params *params)
 589 {
 590         struct snd_interval *rate = hw_param_interval(params,
 591                         SNDRV_PCM_HW_PARAM_RATE);
 592         struct snd_interval *channels = hw_param_interval(params,
 593                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 594         int ret;
 595
 596         /* The DSP will covert the FE rate to 48k, stereo */
 597         rate->min = rate->max = 48000;
 598         channels->min = channels->max = 2;
 599
 600         if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
 601                 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 602
 603                 /* set SSP0 to 16-bit */
 604                 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 605
 606                 /*
 607                  * Default mode for SSP configuration is TDM 4 slot, override config
 608                  * with explicit setting to I2S 2ch 16-bit. The word length is set with
 609                  * dai_set_tdm_slot() since there is no other API exposed
 610                  */
 611                 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
 612                                         SND_SOC_DAIFMT_I2S     |
 613                                         SND_SOC_DAIFMT_NB_NF   |
 614                                         SND_SOC_DAIFMT_CBS_CFS
 615                         );
 616                 if (ret < 0) {
 617                         dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 618                         return ret;
 619                 }
 620
 621                 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
 622                 if (ret < 0) {
 623                         dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
 624                         return ret;
 625                 }
 626
 627         } else {
 628
 629                 /* set SSP2 to 24-bit */
 630                 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 631
 632                 /*
 633                  * Default mode for SSP configuration is TDM 4 slot, override config
 634                  * with explicit setting to I2S 2ch 24-bit. The word length is set with
 635                  * dai_set_tdm_slot() since there is no other API exposed
 636                  */
 637                 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
 638                                         SND_SOC_DAIFMT_I2S     |
 639                                         SND_SOC_DAIFMT_NB_NF   |
 640                                         SND_SOC_DAIFMT_CBS_CFS
 641                         );
 642                 if (ret < 0) {
 643                         dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 644                         return ret;
 645                 }
 646
 647                 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
 648                 if (ret < 0) {
 649                         dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
 650                         return ret;
 651                 }
 652         }
 653         return 0;
 654 }
 655
 656 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
 657 {
 658         return snd_pcm_hw_constraint_single(substream->runtime,
 659                         SNDRV_PCM_HW_PARAM_RATE, 48000);
 660 }
 661
 662 static const struct snd_soc_ops byt_rt5640_aif1_ops = {
 663         .startup = byt_rt5640_aif1_startup,
 664 };
 665
 666 static const struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
 667         .hw_params = byt_rt5640_aif1_hw_params,
 668 };
 669
 670 static struct snd_soc_dai_link byt_rt5640_dais[] = {
 671         [MERR_DPCM_AUDIO] = {
 672                 .name = "Baytrail Audio Port",
 673                 .stream_name = "Baytrail Audio",
 674                 .cpu_dai_name = "media-cpu-dai",
 675                 .codec_dai_name = "snd-soc-dummy-dai",
 676                 .codec_name = "snd-soc-dummy",
 677                 .platform_name = "sst-mfld-platform",
 678                 .nonatomic = true,
 679                 .dynamic = 1,
 680                 .dpcm_playback = 1,
 681                 .dpcm_capture = 1,
 682                 .ops = &byt_rt5640_aif1_ops,
 683         },
 684         [MERR_DPCM_DEEP_BUFFER] = {
 685                 .name = "Deep-Buffer Audio Port",
 686                 .stream_name = "Deep-Buffer Audio",
 687                 .cpu_dai_name = "deepbuffer-cpu-dai",
 688                 .codec_dai_name = "snd-soc-dummy-dai",
 689                 .codec_name = "snd-soc-dummy",
 690                 .platform_name = "sst-mfld-platform",
 691                 .nonatomic = true,
 692                 .dynamic = 1,
 693                 .dpcm_playback = 1,
 694                 .ops = &byt_rt5640_aif1_ops,
 695         },
 696         [MERR_DPCM_COMPR] = {
 697                 .name = "Baytrail Compressed Port",
 698                 .stream_name = "Baytrail Compress",
 699                 .cpu_dai_name = "compress-cpu-dai",
 700                 .codec_dai_name = "snd-soc-dummy-dai",
 701                 .codec_name = "snd-soc-dummy",
 702                 .platform_name = "sst-mfld-platform",
 703         },
 704                 /* back ends */
 705         {
 706                 .name = "SSP2-Codec",
 707                 .id = 1,
 708                 .cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */
 709                 .platform_name = "sst-mfld-platform",
 710                 .no_pcm = 1,
 711                 .codec_dai_name = "rt5640-aif1", /* changed w/ quirk */
 712                 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */
 713                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 714                                                 | SND_SOC_DAIFMT_CBS_CFS,
 715                 .be_hw_params_fixup = byt_rt5640_codec_fixup,
 716                 .ignore_suspend = 1,
 717                 .nonatomic = true,
 718                 .dpcm_playback = 1,
 719                 .dpcm_capture = 1,
 720                 .init = byt_rt5640_init,
 721                 .ops = &byt_rt5640_be_ssp2_ops,
 722         },
 723 };
 724
 725 /* SoC card */
 726 static struct snd_soc_card byt_rt5640_card = {
 727         .name = "bytcr-rt5640",
 728         .owner = THIS_MODULE,
 729         .dai_link = byt_rt5640_dais,
 730         .num_links = ARRAY_SIZE(byt_rt5640_dais),
 731         .dapm_widgets = byt_rt5640_widgets,
 732         .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
 733         .dapm_routes = byt_rt5640_audio_map,
 734         .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
 735         .fully_routed = true,
 736 };
 737
 738 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
 739 static char byt_rt5640_codec_aif_name[12]; /*  = "rt5640-aif[1|2]" */
 740 static char byt_rt5640_cpu_dai_name[10]; /*  = "ssp[0|2]-port" */
 741
 742 static bool is_valleyview(void)
 743 {
 744         static const struct x86_cpu_id cpu_ids[] = {
 745                 { X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
 746                 {}
 747         };
 748
 749         if (!x86_match_cpu(cpu_ids))
 750                 return false;
 751         return true;
 752 }
 753
 754 struct acpi_chan_package {   /* ACPICA seems to require 64 bit integers */
 755         u64 aif_value;       /* 1: AIF1, 2: AIF2 */
 756         u64 mclock_value;    /* usually 25MHz (0x17d7940), ignored */
 757 };
 758
 759 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
 760 {
 761         int ret_val = 0;
 762         struct sst_acpi_mach *mach;
 763         const char *i2c_name = NULL;
 764         int i;
 765         int dai_index;
 766         struct byt_rt5640_private *priv;
 767
 768         is_bytcr = false;
 769         priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC);
 770         if (!priv)
 771                 return -ENOMEM;
 772
 773         /* register the soc card */
 774         byt_rt5640_card.dev = &pdev->dev;
 775         mach = byt_rt5640_card.dev->platform_data;
 776         snd_soc_card_set_drvdata(&byt_rt5640_card, priv);
 777
 778         /* fix index of codec dai */
 779         dai_index = MERR_DPCM_COMPR + 1;
 780         for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
 781                 if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
 782                         dai_index = i;
 783                         break;
 784                 }
 785         }
 786
 787         /* fixup codec name based on HID */
 788         i2c_name = sst_acpi_find_name_from_hid(mach->id);
 789         if (i2c_name != NULL) {
 790                 snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
 791                         "%s%s", "i2c-", i2c_name);
 792
 793                 byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
 794         }
 795
 796         /*
 797          * swap SSP0 if bytcr is detected
 798          * (will be overridden if DMI quirk is detected)
 799          */
 800         if (is_valleyview()) {
 801                 struct sst_platform_info *p_info = mach->pdata;
 802                 const struct sst_res_info *res_info = p_info->res_info;
 803
 804                 if (res_info->acpi_ipc_irq_index == 0)
 805                         is_bytcr = true;
 806         }
 807
 808         if (is_bytcr) {
 809                 /*
 810                  * Baytrail CR platforms may have CHAN package in BIOS, try
 811                  * to find relevant routing quirk based as done on Windows
 812                  * platforms. We have to read the information directly from the
 813                  * BIOS, at this stage the card is not created and the links
 814                  * with the codec driver/pdata are non-existent
 815                  */
 816
 817                 struct acpi_chan_package chan_package;
 818
 819                 /* format specified: 2 64-bit integers */
 820                 struct acpi_buffer format = {sizeof("NN"), "NN"};
 821                 struct acpi_buffer state = {0, NULL};
 822                 struct sst_acpi_package_context pkg_ctx;
 823                 bool pkg_found = false;
 824
 825                 state.length = sizeof(chan_package);
 826                 state.pointer = &chan_package;
 827
 828                 pkg_ctx.name = "CHAN";
 829                 pkg_ctx.length = 2;
 830                 pkg_ctx.format = &format;
 831                 pkg_ctx.state = &state;
 832                 pkg_ctx.data_valid = false;
 833
 834                 pkg_found = sst_acpi_find_package_from_hid(mach->id, &pkg_ctx);
 835                 if (pkg_found) {
 836                         if (chan_package.aif_value == 1) {
 837                                 dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
 838                                 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF1;
 839                         } else  if (chan_package.aif_value == 2) {
 840                                 dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
 841                                 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
 842                         } else {
 843                                 dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
 844                                 pkg_found = false;
 845                         }
 846                 }
 847
 848                 if (!pkg_found) {
 849                         /* no BIOS indications, assume SSP0-AIF2 connection */
 850                         byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
 851                 }
 852
 853                 /* change defaults for Baytrail-CR capture */
 854                 byt_rt5640_quirk |= BYT_RT5640_IN1_MAP;
 855                 byt_rt5640_quirk |= BYT_RT5640_DIFF_MIC;
 856         } else {
 857                 byt_rt5640_quirk |= (BYT_RT5640_DMIC1_MAP |
 858                                 BYT_RT5640_DMIC_EN);
 859         }
 860
 861         /* check quirks before creating card */
 862         dmi_check_system(byt_rt5640_quirk_table);
 863         if (quirk_override) {
 864                 dev_info(&pdev->dev, "Overriding quirk 0x%x => 0x%x\n",
 865                          (unsigned int)byt_rt5640_quirk, quirk_override);
 866                 byt_rt5640_quirk = quirk_override;
 867         }
 868         log_quirks(&pdev->dev);
 869
 870         if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) ||
 871             (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 872
 873                 /* fixup codec aif name */
 874                 snprintf(byt_rt5640_codec_aif_name,
 875                         sizeof(byt_rt5640_codec_aif_name),
 876                         "%s", "rt5640-aif2");
 877
 878                 byt_rt5640_dais[dai_index].codec_dai_name =
 879                         byt_rt5640_codec_aif_name;
 880         }
 881
 882         if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
 883             (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 884
 885                 /* fixup cpu dai name name */
 886                 snprintf(byt_rt5640_cpu_dai_name,
 887                         sizeof(byt_rt5640_cpu_dai_name),
 888                         "%s", "ssp0-port");
 889
 890                 byt_rt5640_dais[dai_index].cpu_dai_name =
 891                         byt_rt5640_cpu_dai_name;
 892         }
 893
 894         if ((byt_rt5640_quirk & BYT_RT5640_MCLK_EN) && (is_valleyview())) {
 895                 priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
 896                 if (IS_ERR(priv->mclk)) {
 897                         ret_val = PTR_ERR(priv->mclk);
 898
 899                         dev_err(&pdev->dev,
 900                                 "Failed to get MCLK from pmc_plt_clk_3: %d\n",
 901                                 ret_val);
 902
 903                         /*
 904                          * Fall back to bit clock usage for -ENOENT (clock not
 905                          * available likely due to missing dependencies), bail
 906                          * for all other errors, including -EPROBE_DEFER
 907                          */
 908                         if (ret_val != -ENOENT)
 909                                 return ret_val;
 910                         byt_rt5640_quirk &= ~BYT_RT5640_MCLK_EN;
 911                 }
 912         }
 913
 914         ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
 915
 916         if (ret_val) {
 917                 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
 918                         ret_val);
 919                 return ret_val;
 920         }
 921         platform_set_drvdata(pdev, &byt_rt5640_card);
 922         return ret_val;
 923 }
 924
 925 static struct platform_driver snd_byt_rt5640_mc_driver = {
 926         .driver = {
 927                 .name = "bytcr_rt5640",
 928         },
 929         .probe = snd_byt_rt5640_mc_probe,
 930 };
 931
 932 module_platform_driver(snd_byt_rt5640_mc_driver);
 933
 934 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
 935 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
 936 MODULE_LICENSE("GPL v2");
 937 MODULE_ALIAS("platform:bytcr_rt5640");