sound/soc/intel/boards/bytcr_rt5640.c

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