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/clk.h>
  26 #include <linux/device.h>
  27 #include <linux/dmi.h>
  28 #include <linux/slab.h>
  29 #include <asm/cpu_device_id.h>
  30 #include <asm/platform_sst_audio.h>
  31 #include <sound/pcm.h>
  32 #include <sound/pcm_params.h>
  33 #include <sound/soc.h>
  34 #include <sound/jack.h>
  35 #include <sound/soc-acpi.h>
  36 #include "../../codecs/rt5640.h"
  37 #include "../atom/sst-atom-controls.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) &  GENMASK(7, 0))
  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 int platform_clock_control(struct snd_soc_dapm_widget *w,
 149                                   struct snd_kcontrol *k, int  event)
 150 {
 151         struct snd_soc_dapm_context *dapm = w->dapm;
 152         struct snd_soc_card *card = dapm->card;
 153         struct snd_soc_dai *codec_dai;
 154         struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
 155         int ret;
 156
 157         codec_dai = snd_soc_card_get_codec_dai(card, BYT_CODEC_DAI1);
 158         if (!codec_dai)
 159                 codec_dai = snd_soc_card_get_codec_dai(card, BYT_CODEC_DAI2);
 160
 161         if (!codec_dai) {
 162                 dev_err(card->dev,
 163                         "Codec dai not found; Unable to set platform clock\n");
 164                 return -EIO;
 165         }
 166
 167         if (SND_SOC_DAPM_EVENT_ON(event)) {
 168                 if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
 169                         ret = clk_prepare_enable(priv->mclk);
 170                         if (ret < 0) {
 171                                 dev_err(card->dev,
 172                                         "could not configure MCLK state\n");
 173                                 return ret;
 174                         }
 175                 }
 176                 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
 177                                              48000 * 512,
 178                                              SND_SOC_CLOCK_IN);
 179         } else {
 180                 /*
 181                  * Set codec clock source to internal clock before
 182                  * turning off the platform clock. Codec needs clock
 183                  * for Jack detection and button press
 184                  */
 185                 ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_RCCLK,
 186                                              48000 * 512,
 187                                              SND_SOC_CLOCK_IN);
 188                 if (!ret) {
 189                         if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN)
 190                                 clk_disable_unprepare(priv->mclk);
 191                 }
 192         }
 193
 194         if (ret < 0) {
 195                 dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
 196                 return ret;
 197         }
 198
 199         return 0;
 200 }
 201
 202 static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
 203         SND_SOC_DAPM_HP("Headphone", NULL),
 204         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 205         SND_SOC_DAPM_MIC("Internal Mic", NULL),
 206         SND_SOC_DAPM_SPK("Speaker", NULL),
 207         SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
 208                             platform_clock_control, SND_SOC_DAPM_PRE_PMU |
 209                             SND_SOC_DAPM_POST_PMD),
 210
 211 };
 212
 213 static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
 214         {"Headphone", NULL, "Platform Clock"},
 215         {"Headset Mic", NULL, "Platform Clock"},
 216         {"Internal Mic", NULL, "Platform Clock"},
 217         {"Speaker", NULL, "Platform Clock"},
 218
 219         {"Headset Mic", NULL, "MICBIAS1"},
 220         {"IN2P", NULL, "Headset Mic"},
 221         {"Headphone", NULL, "HPOL"},
 222         {"Headphone", NULL, "HPOR"},
 223 };
 224
 225 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
 226         {"DMIC1", NULL, "Internal Mic"},
 227 };
 228
 229 static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
 230         {"DMIC2", NULL, "Internal Mic"},
 231 };
 232
 233 static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
 234         {"Internal Mic", NULL, "MICBIAS1"},
 235         {"IN1P", NULL, "Internal Mic"},
 236 };
 237
 238 static const struct snd_soc_dapm_route byt_rt5640_intmic_in3_map[] = {
 239         {"Internal Mic", NULL, "MICBIAS1"},
 240         {"IN3P", NULL, "Internal Mic"},
 241 };
 242
 243 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif1_map[] = {
 244         {"ssp2 Tx", NULL, "codec_out0"},
 245         {"ssp2 Tx", NULL, "codec_out1"},
 246         {"codec_in0", NULL, "ssp2 Rx"},
 247         {"codec_in1", NULL, "ssp2 Rx"},
 248
 249         {"AIF1 Playback", NULL, "ssp2 Tx"},
 250         {"ssp2 Rx", NULL, "AIF1 Capture"},
 251 };
 252
 253 static const struct snd_soc_dapm_route byt_rt5640_ssp2_aif2_map[] = {
 254         {"ssp2 Tx", NULL, "codec_out0"},
 255         {"ssp2 Tx", NULL, "codec_out1"},
 256         {"codec_in0", NULL, "ssp2 Rx"},
 257         {"codec_in1", NULL, "ssp2 Rx"},
 258
 259         {"AIF2 Playback", NULL, "ssp2 Tx"},
 260         {"ssp2 Rx", NULL, "AIF2 Capture"},
 261 };
 262
 263 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif1_map[] = {
 264         {"ssp0 Tx", NULL, "modem_out"},
 265         {"modem_in", NULL, "ssp0 Rx"},
 266
 267         {"AIF1 Playback", NULL, "ssp0 Tx"},
 268         {"ssp0 Rx", NULL, "AIF1 Capture"},
 269 };
 270
 271 static const struct snd_soc_dapm_route byt_rt5640_ssp0_aif2_map[] = {
 272         {"ssp0 Tx", NULL, "modem_out"},
 273         {"modem_in", NULL, "ssp0 Rx"},
 274
 275         {"AIF2 Playback", NULL, "ssp0 Tx"},
 276         {"ssp0 Rx", NULL, "AIF2 Capture"},
 277 };
 278
 279 static const struct snd_soc_dapm_route byt_rt5640_stereo_spk_map[] = {
 280         {"Speaker", NULL, "SPOLP"},
 281         {"Speaker", NULL, "SPOLN"},
 282         {"Speaker", NULL, "SPORP"},
 283         {"Speaker", NULL, "SPORN"},
 284 };
 285
 286 static const struct snd_soc_dapm_route byt_rt5640_mono_spk_map[] = {
 287         {"Speaker", NULL, "SPOLP"},
 288         {"Speaker", NULL, "SPOLN"},
 289 };
 290
 291 static const struct snd_kcontrol_new byt_rt5640_controls[] = {
 292         SOC_DAPM_PIN_SWITCH("Headphone"),
 293         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 294         SOC_DAPM_PIN_SWITCH("Internal Mic"),
 295         SOC_DAPM_PIN_SWITCH("Speaker"),
 296 };
 297
 298 static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
 299                                         struct snd_pcm_hw_params *params)
 300 {
 301         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 302         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 303         int ret;
 304
 305         ret = snd_soc_dai_set_sysclk(codec_dai, RT5640_SCLK_S_PLL1,
 306                                      params_rate(params) * 512,
 307                                      SND_SOC_CLOCK_IN);
 308
 309         if (ret < 0) {
 310                 dev_err(rtd->dev, "can't set codec clock %d\n", ret);
 311                 return ret;
 312         }
 313
 314         if (!(byt_rt5640_quirk & BYT_RT5640_MCLK_EN)) {
 315                 /* use bitclock as PLL input */
 316                 if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
 317                         (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 318
 319                         /* 2x16 bit slots on SSP0 */
 320                         ret = snd_soc_dai_set_pll(codec_dai, 0,
 321                                                 RT5640_PLL1_S_BCLK1,
 322                                                 params_rate(params) * 32,
 323                                                 params_rate(params) * 512);
 324                 } else {
 325                         /* 2x15 bit slots on SSP2 */
 326                         ret = snd_soc_dai_set_pll(codec_dai, 0,
 327                                                 RT5640_PLL1_S_BCLK1,
 328                                                 params_rate(params) * 50,
 329                                                 params_rate(params) * 512);
 330                 }
 331         } else {
 332                 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ) {
 333                         ret = snd_soc_dai_set_pll(codec_dai, 0,
 334                                                 RT5640_PLL1_S_MCLK,
 335                                                 25000000,
 336                                                 params_rate(params) * 512);
 337                 } else {
 338                         ret = snd_soc_dai_set_pll(codec_dai, 0,
 339                                                 RT5640_PLL1_S_MCLK,
 340                                                 19200000,
 341                                                 params_rate(params) * 512);
 342                 }
 343         }
 344
 345         if (ret < 0) {
 346                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
 347                 return ret;
 348         }
 349
 350         return 0;
 351 }
 352
 353 static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
 354 {
 355         byt_rt5640_quirk = (unsigned long)id->driver_data;
 356         return 1;
 357 }
 358
 359 static const struct dmi_system_id byt_rt5640_quirk_table[] = {
 360         {
 361                 .callback = byt_rt5640_quirk_cb,
 362                 .matches = {
 363                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 364                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"),
 365                 },
 366                 .driver_data = (void *)(BYT_RT5640_IN1_MAP |
 367                                         BYT_RT5640_MCLK_EN),
 368         },
 369         {
 370                 .callback = byt_rt5640_quirk_cb,
 371                 .matches = {
 372                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 373                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TAF"),
 374                 },
 375                 .driver_data = (void *)(BYT_RT5640_IN1_MAP |
 376                                         BYT_RT5640_MONO_SPEAKER |
 377                                         BYT_RT5640_DIFF_MIC |
 378                                         BYT_RT5640_SSP0_AIF2 |
 379                                         BYT_RT5640_MCLK_EN),
 380         },
 381         {
 382                 .callback = byt_rt5640_quirk_cb,
 383                 .matches = {
 384                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "DellInc."),
 385                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
 386                 },
 387                 .driver_data = (void *)(BYT_RT5640_DMIC2_MAP |
 388                                         BYT_RT5640_DMIC_EN |
 389                                         BYT_RT5640_MCLK_EN),
 390         },
 391         {
 392                 .callback = byt_rt5640_quirk_cb,
 393                 .matches = {
 394                         DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
 395                         DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "HP ElitePad 1000 G2"),
 396                 },
 397                 .driver_data = (void *)(BYT_RT5640_IN1_MAP |
 398                                         BYT_RT5640_MCLK_EN),
 399         },
 400         {
 401                 .callback = byt_rt5640_quirk_cb,
 402                 .matches = {
 403                         DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"),
 404                         DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"),
 405                 },
 406                 .driver_data = (void *)(BYT_RT5640_DMIC1_MAP |
 407                                         BYT_RT5640_DMIC_EN),
 408         },
 409         {
 410                 .callback = byt_rt5640_quirk_cb,
 411                 .matches = {
 412                         DMI_MATCH(DMI_BOARD_VENDOR, "TECLAST"),
 413                         DMI_MATCH(DMI_BOARD_NAME, "tPAD"),
 414                 },
 415                 .driver_data = (void *)(BYT_RT5640_IN3_MAP |
 416                                         BYT_RT5640_MCLK_EN |
 417                                         BYT_RT5640_SSP0_AIF1),
 418         },
 419         {
 420                 .callback = byt_rt5640_quirk_cb,
 421                 .matches = {
 422                         DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
 423                         DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
 424                 },
 425                 .driver_data = (void *)(BYT_RT5640_IN1_MAP |
 426                                                  BYT_RT5640_MCLK_EN |
 427                                                  BYT_RT5640_SSP0_AIF1),
 428
 429         },
 430         {
 431                 .callback = byt_rt5640_quirk_cb,
 432                 .matches = {
 433                         DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
 434                 },
 435                 .driver_data = (void *)(BYT_RT5640_IN3_MAP |
 436                                         BYT_RT5640_MCLK_EN |
 437                                         BYT_RT5640_SSP0_AIF1),
 438
 439         },
 440         {}
 441 };
 442
 443 static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
 444 {
 445         struct snd_soc_card *card = runtime->card;
 446         struct byt_rt5640_private *priv = snd_soc_card_get_drvdata(card);
 447         struct snd_soc_codec *codec = runtime->codec;
 448         const struct snd_soc_dapm_route *custom_map;
 449         int num_routes;
 450         int ret;
 451
 452         card->dapm.idle_bias_off = true;
 453
 454         rt5640_sel_asrc_clk_src(codec,
 455                                 RT5640_DA_STEREO_FILTER |
 456                                 RT5640_DA_MONO_L_FILTER |
 457                                 RT5640_DA_MONO_R_FILTER |
 458                                 RT5640_AD_STEREO_FILTER |
 459                                 RT5640_AD_MONO_L_FILTER |
 460                                 RT5640_AD_MONO_R_FILTER,
 461                                 RT5640_CLK_SEL_ASRC);
 462
 463         ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
 464                                         ARRAY_SIZE(byt_rt5640_controls));
 465         if (ret) {
 466                 dev_err(card->dev, "unable to add card controls\n");
 467                 return ret;
 468         }
 469
 470         switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
 471         case BYT_RT5640_IN1_MAP:
 472                 custom_map = byt_rt5640_intmic_in1_map;
 473                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
 474                 break;
 475         case BYT_RT5640_IN3_MAP:
 476                 custom_map = byt_rt5640_intmic_in3_map;
 477                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_in3_map);
 478                 break;
 479         case BYT_RT5640_DMIC2_MAP:
 480                 custom_map = byt_rt5640_intmic_dmic2_map;
 481                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
 482                 break;
 483         default:
 484                 custom_map = byt_rt5640_intmic_dmic1_map;
 485                 num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
 486         }
 487
 488         ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
 489         if (ret)
 490                 return ret;
 491
 492         if (byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) {
 493                 ret = snd_soc_dapm_add_routes(&card->dapm,
 494                                         byt_rt5640_ssp2_aif2_map,
 495                                         ARRAY_SIZE(byt_rt5640_ssp2_aif2_map));
 496         } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) {
 497                 ret = snd_soc_dapm_add_routes(&card->dapm,
 498                                         byt_rt5640_ssp0_aif1_map,
 499                                         ARRAY_SIZE(byt_rt5640_ssp0_aif1_map));
 500         } else if (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2) {
 501                 ret = snd_soc_dapm_add_routes(&card->dapm,
 502                                         byt_rt5640_ssp0_aif2_map,
 503                                         ARRAY_SIZE(byt_rt5640_ssp0_aif2_map));
 504         } else {
 505                 ret = snd_soc_dapm_add_routes(&card->dapm,
 506                                         byt_rt5640_ssp2_aif1_map,
 507                                         ARRAY_SIZE(byt_rt5640_ssp2_aif1_map));
 508         }
 509         if (ret)
 510                 return ret;
 511
 512         if (byt_rt5640_quirk & BYT_RT5640_MONO_SPEAKER) {
 513                 ret = snd_soc_dapm_add_routes(&card->dapm,
 514                                         byt_rt5640_mono_spk_map,
 515                                         ARRAY_SIZE(byt_rt5640_mono_spk_map));
 516         } else {
 517                 ret = snd_soc_dapm_add_routes(&card->dapm,
 518                                         byt_rt5640_stereo_spk_map,
 519                                         ARRAY_SIZE(byt_rt5640_stereo_spk_map));
 520         }
 521         if (ret)
 522                 return ret;
 523
 524         if (byt_rt5640_quirk & BYT_RT5640_DIFF_MIC) {
 525                 snd_soc_update_bits(codec,  RT5640_IN1_IN2, RT5640_IN_DF1,
 526                                     RT5640_IN_DF1);
 527         }
 528
 529         if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
 530                 ret = rt5640_dmic_enable(codec, 0, 0);
 531                 if (ret)
 532                         return ret;
 533         }
 534
 535         snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
 536         snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
 537
 538         if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
 539                 /*
 540                  * The firmware might enable the clock at
 541                  * boot (this information may or may not
 542                  * be reflected in the enable clock register).
 543                  * To change the rate we must disable the clock
 544                  * first to cover these cases. Due to common
 545                  * clock framework restrictions that do not allow
 546                  * to disable a clock that has not been enabled,
 547                  * we need to enable the clock first.
 548                  */
 549                 ret = clk_prepare_enable(priv->mclk);
 550                 if (!ret)
 551                         clk_disable_unprepare(priv->mclk);
 552
 553                 if (byt_rt5640_quirk & BYT_RT5640_MCLK_25MHZ)
 554                         ret = clk_set_rate(priv->mclk, 25000000);
 555                 else
 556                         ret = clk_set_rate(priv->mclk, 19200000);
 557
 558                 if (ret)
 559                         dev_err(card->dev, "unable to set MCLK rate\n");
 560         }
 561
 562         return ret;
 563 }
 564
 565 static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
 566         .formats = SNDRV_PCM_FMTBIT_S24_LE,
 567         .rate_min = 48000,
 568         .rate_max = 48000,
 569         .channels_min = 2,
 570         .channels_max = 2,
 571 };
 572
 573 static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 574                             struct snd_pcm_hw_params *params)
 575 {
 576         struct snd_interval *rate = hw_param_interval(params,
 577                         SNDRV_PCM_HW_PARAM_RATE);
 578         struct snd_interval *channels = hw_param_interval(params,
 579                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 580         int ret;
 581
 582         /* The DSP will covert the FE rate to 48k, stereo */
 583         rate->min = rate->max = 48000;
 584         channels->min = channels->max = 2;
 585
 586         if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
 587                 (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 588
 589                 /* set SSP0 to 16-bit */
 590                 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 591
 592                 /*
 593                  * Default mode for SSP configuration is TDM 4 slot, override config
 594                  * with explicit setting to I2S 2ch 16-bit. The word length is set with
 595                  * dai_set_tdm_slot() since there is no other API exposed
 596                  */
 597                 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
 598                                         SND_SOC_DAIFMT_I2S     |
 599                                         SND_SOC_DAIFMT_NB_NF   |
 600                                         SND_SOC_DAIFMT_CBS_CFS
 601                         );
 602                 if (ret < 0) {
 603                         dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 604                         return ret;
 605                 }
 606
 607                 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
 608                 if (ret < 0) {
 609                         dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
 610                         return ret;
 611                 }
 612
 613         } else {
 614
 615                 /* set SSP2 to 24-bit */
 616                 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 617
 618                 /*
 619                  * Default mode for SSP configuration is TDM 4 slot, override config
 620                  * with explicit setting to I2S 2ch 24-bit. The word length is set with
 621                  * dai_set_tdm_slot() since there is no other API exposed
 622                  */
 623                 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
 624                                         SND_SOC_DAIFMT_I2S     |
 625                                         SND_SOC_DAIFMT_NB_NF   |
 626                                         SND_SOC_DAIFMT_CBS_CFS
 627                         );
 628                 if (ret < 0) {
 629                         dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 630                         return ret;
 631                 }
 632
 633                 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
 634                 if (ret < 0) {
 635                         dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
 636                         return ret;
 637                 }
 638         }
 639         return 0;
 640 }
 641
 642 static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
 643 {
 644         return snd_pcm_hw_constraint_single(substream->runtime,
 645                         SNDRV_PCM_HW_PARAM_RATE, 48000);
 646 }
 647
 648 static const struct snd_soc_ops byt_rt5640_aif1_ops = {
 649         .startup = byt_rt5640_aif1_startup,
 650 };
 651
 652 static const struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
 653         .hw_params = byt_rt5640_aif1_hw_params,
 654 };
 655
 656 static struct snd_soc_dai_link byt_rt5640_dais[] = {
 657         [MERR_DPCM_AUDIO] = {
 658                 .name = "Baytrail Audio Port",
 659                 .stream_name = "Baytrail Audio",
 660                 .cpu_dai_name = "media-cpu-dai",
 661                 .codec_dai_name = "snd-soc-dummy-dai",
 662                 .codec_name = "snd-soc-dummy",
 663                 .platform_name = "sst-mfld-platform",
 664                 .nonatomic = true,
 665                 .dynamic = 1,
 666                 .dpcm_playback = 1,
 667                 .dpcm_capture = 1,
 668                 .ops = &byt_rt5640_aif1_ops,
 669         },
 670         [MERR_DPCM_DEEP_BUFFER] = {
 671                 .name = "Deep-Buffer Audio Port",
 672                 .stream_name = "Deep-Buffer Audio",
 673                 .cpu_dai_name = "deepbuffer-cpu-dai",
 674                 .codec_dai_name = "snd-soc-dummy-dai",
 675                 .codec_name = "snd-soc-dummy",
 676                 .platform_name = "sst-mfld-platform",
 677                 .nonatomic = true,
 678                 .dynamic = 1,
 679                 .dpcm_playback = 1,
 680                 .ops = &byt_rt5640_aif1_ops,
 681         },
 682                 /* back ends */
 683         {
 684                 .name = "SSP2-Codec",
 685                 .id = 0,
 686                 .cpu_dai_name = "ssp2-port", /* overwritten for ssp0 routing */
 687                 .platform_name = "sst-mfld-platform",
 688                 .no_pcm = 1,
 689                 .codec_dai_name = "rt5640-aif1", /* changed w/ quirk */
 690                 .codec_name = "i2c-10EC5640:00", /* overwritten with HID */
 691                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 692                                                 | SND_SOC_DAIFMT_CBS_CFS,
 693                 .be_hw_params_fixup = byt_rt5640_codec_fixup,
 694                 .ignore_suspend = 1,
 695                 .nonatomic = true,
 696                 .dpcm_playback = 1,
 697                 .dpcm_capture = 1,
 698                 .init = byt_rt5640_init,
 699                 .ops = &byt_rt5640_be_ssp2_ops,
 700         },
 701 };
 702
 703 /* SoC card */
 704 static struct snd_soc_card byt_rt5640_card = {
 705         .name = "bytcr-rt5640",
 706         .owner = THIS_MODULE,
 707         .dai_link = byt_rt5640_dais,
 708         .num_links = ARRAY_SIZE(byt_rt5640_dais),
 709         .dapm_widgets = byt_rt5640_widgets,
 710         .num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
 711         .dapm_routes = byt_rt5640_audio_map,
 712         .num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
 713         .fully_routed = true,
 714 };
 715
 716 static char byt_rt5640_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
 717 static char byt_rt5640_codec_aif_name[12]; /*  = "rt5640-aif[1|2]" */
 718 static char byt_rt5640_cpu_dai_name[10]; /*  = "ssp[0|2]-port" */
 719
 720 static bool is_valleyview(void)
 721 {
 722         static const struct x86_cpu_id cpu_ids[] = {
 723                 { X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
 724                 {}
 725         };
 726
 727         if (!x86_match_cpu(cpu_ids))
 728                 return false;
 729         return true;
 730 }
 731
 732 struct acpi_chan_package {   /* ACPICA seems to require 64 bit integers */
 733         u64 aif_value;       /* 1: AIF1, 2: AIF2 */
 734         u64 mclock_value;    /* usually 25MHz (0x17d7940), ignored */
 735 };
 736
 737 static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
 738 {
 739         struct byt_rt5640_private *priv;
 740         struct snd_soc_acpi_mach *mach;
 741         const char *i2c_name = NULL;
 742         int ret_val = 0;
 743         int dai_index = 0;
 744         int i;
 745
 746         is_bytcr = false;
 747         priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_ATOMIC);
 748         if (!priv)
 749                 return -ENOMEM;
 750
 751         /* register the soc card */
 752         byt_rt5640_card.dev = &pdev->dev;
 753         mach = byt_rt5640_card.dev->platform_data;
 754         snd_soc_card_set_drvdata(&byt_rt5640_card, priv);
 755
 756         /* fix index of codec dai */
 757         for (i = 0; i < ARRAY_SIZE(byt_rt5640_dais); i++) {
 758                 if (!strcmp(byt_rt5640_dais[i].codec_name, "i2c-10EC5640:00")) {
 759                         dai_index = i;
 760                         break;
 761                 }
 762         }
 763
 764         /* fixup codec name based on HID */
 765         i2c_name = snd_soc_acpi_find_name_from_hid(mach->id);
 766         if (i2c_name) {
 767                 snprintf(byt_rt5640_codec_name, sizeof(byt_rt5640_codec_name),
 768                         "%s%s", "i2c-", i2c_name);
 769
 770                 byt_rt5640_dais[dai_index].codec_name = byt_rt5640_codec_name;
 771         }
 772
 773         /*
 774          * swap SSP0 if bytcr is detected
 775          * (will be overridden if DMI quirk is detected)
 776          */
 777         if (is_valleyview()) {
 778                 struct sst_platform_info *p_info = mach->pdata;
 779                 const struct sst_res_info *res_info = p_info->res_info;
 780
 781                 if (res_info->acpi_ipc_irq_index == 0)
 782                         is_bytcr = true;
 783         }
 784
 785         if (is_bytcr) {
 786                 /*
 787                  * Baytrail CR platforms may have CHAN package in BIOS, try
 788                  * to find relevant routing quirk based as done on Windows
 789                  * platforms. We have to read the information directly from the
 790                  * BIOS, at this stage the card is not created and the links
 791                  * with the codec driver/pdata are non-existent
 792                  */
 793
 794                 struct acpi_chan_package chan_package;
 795
 796                 /* format specified: 2 64-bit integers */
 797                 struct acpi_buffer format = {sizeof("NN"), "NN"};
 798                 struct acpi_buffer state = {0, NULL};
 799                 struct snd_soc_acpi_package_context pkg_ctx;
 800                 bool pkg_found = false;
 801
 802                 state.length = sizeof(chan_package);
 803                 state.pointer = &chan_package;
 804
 805                 pkg_ctx.name = "CHAN";
 806                 pkg_ctx.length = 2;
 807                 pkg_ctx.format = &format;
 808                 pkg_ctx.state = &state;
 809                 pkg_ctx.data_valid = false;
 810
 811                 pkg_found = snd_soc_acpi_find_package_from_hid(mach->id,
 812                                                                &pkg_ctx);
 813                 if (pkg_found) {
 814                         if (chan_package.aif_value == 1) {
 815                                 dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
 816                                 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF1;
 817                         } else  if (chan_package.aif_value == 2) {
 818                                 dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
 819                                 byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
 820                         } else {
 821                                 dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
 822                                 pkg_found = false;
 823                         }
 824                 }
 825
 826                 if (!pkg_found) {
 827                         /* no BIOS indications, assume SSP0-AIF2 connection */
 828                         byt_rt5640_quirk |= BYT_RT5640_SSP0_AIF2;
 829                 }
 830
 831                 /* change defaults for Baytrail-CR capture */
 832                 byt_rt5640_quirk |= BYT_RT5640_IN1_MAP;
 833                 byt_rt5640_quirk |= BYT_RT5640_DIFF_MIC;
 834         } else {
 835                 byt_rt5640_quirk |= (BYT_RT5640_DMIC1_MAP |
 836                                 BYT_RT5640_DMIC_EN);
 837         }
 838
 839         /* check quirks before creating card */
 840         dmi_check_system(byt_rt5640_quirk_table);
 841         if (quirk_override) {
 842                 dev_info(&pdev->dev, "Overriding quirk 0x%x => 0x%x\n",
 843                          (unsigned int)byt_rt5640_quirk, quirk_override);
 844                 byt_rt5640_quirk = quirk_override;
 845         }
 846         log_quirks(&pdev->dev);
 847
 848         if ((byt_rt5640_quirk & BYT_RT5640_SSP2_AIF2) ||
 849             (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 850
 851                 /* fixup codec aif name */
 852                 snprintf(byt_rt5640_codec_aif_name,
 853                         sizeof(byt_rt5640_codec_aif_name),
 854                         "%s", "rt5640-aif2");
 855
 856                 byt_rt5640_dais[dai_index].codec_dai_name =
 857                         byt_rt5640_codec_aif_name;
 858         }
 859
 860         if ((byt_rt5640_quirk & BYT_RT5640_SSP0_AIF1) ||
 861             (byt_rt5640_quirk & BYT_RT5640_SSP0_AIF2)) {
 862
 863                 /* fixup cpu dai name name */
 864                 snprintf(byt_rt5640_cpu_dai_name,
 865                         sizeof(byt_rt5640_cpu_dai_name),
 866                         "%s", "ssp0-port");
 867
 868                 byt_rt5640_dais[dai_index].cpu_dai_name =
 869                         byt_rt5640_cpu_dai_name;
 870         }
 871
 872         if (byt_rt5640_quirk & BYT_RT5640_MCLK_EN) {
 873                 priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
 874                 if (IS_ERR(priv->mclk)) {
 875                         ret_val = PTR_ERR(priv->mclk);
 876
 877                         dev_err(&pdev->dev,
 878                                 "Failed to get MCLK from pmc_plt_clk_3: %d\n",
 879                                 ret_val);
 880
 881                         /*
 882                          * Fall back to bit clock usage for -ENOENT (clock not
 883                          * available likely due to missing dependencies), bail
 884                          * for all other errors, including -EPROBE_DEFER
 885                          */
 886                         if (ret_val != -ENOENT)
 887                                 return ret_val;
 888                         byt_rt5640_quirk &= ~BYT_RT5640_MCLK_EN;
 889                 }
 890         }
 891
 892         ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
 893
 894         if (ret_val) {
 895                 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
 896                         ret_val);
 897                 return ret_val;
 898         }
 899         platform_set_drvdata(pdev, &byt_rt5640_card);
 900         return ret_val;
 901 }
 902
 903 static struct platform_driver snd_byt_rt5640_mc_driver = {
 904         .driver = {
 905                 .name = "bytcr_rt5640",
 906         },
 907         .probe = snd_byt_rt5640_mc_probe,
 908 };
 909
 910 module_platform_driver(snd_byt_rt5640_mc_driver);
 911
 912 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
 913 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
 914 MODULE_LICENSE("GPL v2");
 915 MODULE_ALIAS("platform:bytcr_rt5640");