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