sound/soc/intel/boards/cht_bsw_rt5645.c

   1 /*
   2  *  cht-bsw-rt5645.c - ASoc Machine driver for Intel Cherryview-based platforms
   3  *                     Cherrytrail and Braswell, with RT5645 codec.
   4  *
   5  *  Copyright (C) 2015 Intel Corp
   6  *  Author: Fang, Yang A <yang.a.fang@intel.com>
   7  *              N,Harshapriya <harshapriya.n@intel.com>
   8  *  This file is modified from cht_bsw_rt5672.c
   9  *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  10  *
  11  *  This program is free software; you can redistribute it and/or modify
  12  *  it under the terms of the GNU General Public License as published by
  13  *  the Free Software Foundation; version 2 of the License.
  14  *
  15  *  This program is distributed in the hope that it will be useful, but
  16  *  WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  *  General Public License for more details.
  19  *
  20  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  21  */
  22
  23 #include <linux/module.h>
  24 #include <linux/acpi.h>
  25 #include <linux/platform_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/rt5645.h"
  36 #include "../atom/sst-atom-controls.h"
  37 #include "../common/sst-acpi.h"
  38
  39 #define CHT_PLAT_CLK_3_HZ       19200000
  40 #define CHT_CODEC_DAI1  "rt5645-aif1"
  41 #define CHT_CODEC_DAI2  "rt5645-aif2"
  42
  43 struct cht_acpi_card {
  44         char *codec_id;
  45         int codec_type;
  46         struct snd_soc_card *soc_card;
  47 };
  48
  49 struct cht_mc_private {
  50         struct snd_soc_jack jack;
  51         struct cht_acpi_card *acpi_card;
  52         char codec_name[16];
  53         struct clk *mclk;
  54 };
  55
  56 #define CHT_RT5645_MAP(quirk)   ((quirk) & 0xff)
  57 #define CHT_RT5645_SSP2_AIF2     BIT(16) /* default is using AIF1  */
  58 #define CHT_RT5645_SSP0_AIF1     BIT(17)
  59 #define CHT_RT5645_SSP0_AIF2     BIT(18)
  60
  61 static unsigned long cht_rt5645_quirk = 0;
  62
  63 static void log_quirks(struct device *dev)
  64 {
  65         if (cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2)
  66                 dev_info(dev, "quirk SSP2_AIF2 enabled");
  67         if (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1)
  68                 dev_info(dev, "quirk SSP0_AIF1 enabled");
  69         if (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)
  70                 dev_info(dev, "quirk SSP0_AIF2 enabled");
  71 }
  72
  73 static inline struct snd_soc_dai *cht_get_codec_dai(struct snd_soc_card *card)
  74 {
  75         struct snd_soc_pcm_runtime *rtd;
  76
  77         list_for_each_entry(rtd, &card->rtd_list, list) {
  78                 if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI1,
  79                              strlen(CHT_CODEC_DAI1)))
  80                         return rtd->codec_dai;
  81                 if (!strncmp(rtd->codec_dai->name, CHT_CODEC_DAI2,
  82                              strlen(CHT_CODEC_DAI2)))
  83                         return rtd->codec_dai;
  84         }
  85         return NULL;
  86 }
  87
  88 static int platform_clock_control(struct snd_soc_dapm_widget *w,
  89                 struct snd_kcontrol *k, int  event)
  90 {
  91         struct snd_soc_dapm_context *dapm = w->dapm;
  92         struct snd_soc_card *card = dapm->card;
  93         struct snd_soc_dai *codec_dai;
  94         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(card);
  95         int ret;
  96
  97         codec_dai = cht_get_codec_dai(card);
  98         if (!codec_dai) {
  99                 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
 100                 return -EIO;
 101         }
 102
 103         if (SND_SOC_DAPM_EVENT_ON(event)) {
 104                 if (ctx->mclk) {
 105                         ret = clk_prepare_enable(ctx->mclk);
 106                         if (ret < 0) {
 107                                 dev_err(card->dev,
 108                                         "could not configure MCLK state");
 109                                 return ret;
 110                         }
 111                 }
 112         } else {
 113                 /* Set codec sysclk source to its internal clock because codec PLL will
 114                  * be off when idle and MCLK will also be off when codec is
 115                  * runtime suspended. Codec needs clock for jack detection and button
 116                  * press. MCLK is turned off with clock framework or ACPI.
 117                  */
 118                 ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_RCCLK,
 119                                         48000 * 512, SND_SOC_CLOCK_IN);
 120                 if (ret < 0) {
 121                         dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
 122                         return ret;
 123                 }
 124
 125                 if (ctx->mclk)
 126                         clk_disable_unprepare(ctx->mclk);
 127         }
 128
 129         return 0;
 130 }
 131
 132 static const struct snd_soc_dapm_widget cht_dapm_widgets[] = {
 133         SND_SOC_DAPM_HP("Headphone", NULL),
 134         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 135         SND_SOC_DAPM_MIC("Int Mic", NULL),
 136         SND_SOC_DAPM_MIC("Int Analog Mic", NULL),
 137         SND_SOC_DAPM_SPK("Ext Spk", NULL),
 138         SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
 139                         platform_clock_control, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
 140 };
 141
 142 static const struct snd_soc_dapm_route cht_rt5645_audio_map[] = {
 143         {"IN1P", NULL, "Headset Mic"},
 144         {"IN1N", NULL, "Headset Mic"},
 145         {"DMIC L1", NULL, "Int Mic"},
 146         {"DMIC R1", NULL, "Int Mic"},
 147         {"IN2P", NULL, "Int Analog Mic"},
 148         {"IN2N", NULL, "Int Analog Mic"},
 149         {"Headphone", NULL, "HPOL"},
 150         {"Headphone", NULL, "HPOR"},
 151         {"Ext Spk", NULL, "SPOL"},
 152         {"Ext Spk", NULL, "SPOR"},
 153         {"Headphone", NULL, "Platform Clock"},
 154         {"Headset Mic", NULL, "Platform Clock"},
 155         {"Int Mic", NULL, "Platform Clock"},
 156         {"Int Analog Mic", NULL, "Platform Clock"},
 157         {"Int Analog Mic", NULL, "micbias1"},
 158         {"Int Analog Mic", NULL, "micbias2"},
 159         {"Ext Spk", NULL, "Platform Clock"},
 160 };
 161
 162 static const struct snd_soc_dapm_route cht_rt5650_audio_map[] = {
 163         {"IN1P", NULL, "Headset Mic"},
 164         {"IN1N", NULL, "Headset Mic"},
 165         {"DMIC L2", NULL, "Int Mic"},
 166         {"DMIC R2", NULL, "Int Mic"},
 167         {"Headphone", NULL, "HPOL"},
 168         {"Headphone", NULL, "HPOR"},
 169         {"Ext Spk", NULL, "SPOL"},
 170         {"Ext Spk", NULL, "SPOR"},
 171         {"Headphone", NULL, "Platform Clock"},
 172         {"Headset Mic", NULL, "Platform Clock"},
 173         {"Int Mic", NULL, "Platform Clock"},
 174         {"Ext Spk", NULL, "Platform Clock"},
 175 };
 176
 177 static const struct snd_soc_dapm_route cht_rt5645_ssp2_aif1_map[] = {
 178         {"AIF1 Playback", NULL, "ssp2 Tx"},
 179         {"ssp2 Tx", NULL, "codec_out0"},
 180         {"ssp2 Tx", NULL, "codec_out1"},
 181         {"codec_in0", NULL, "ssp2 Rx" },
 182         {"codec_in1", NULL, "ssp2 Rx" },
 183         {"ssp2 Rx", NULL, "AIF1 Capture"},
 184 };
 185
 186 static const struct snd_soc_dapm_route cht_rt5645_ssp2_aif2_map[] = {
 187         {"AIF2 Playback", NULL, "ssp2 Tx"},
 188         {"ssp2 Tx", NULL, "codec_out0"},
 189         {"ssp2 Tx", NULL, "codec_out1"},
 190         {"codec_in0", NULL, "ssp2 Rx" },
 191         {"codec_in1", NULL, "ssp2 Rx" },
 192         {"ssp2 Rx", NULL, "AIF2 Capture"},
 193 };
 194
 195 static const struct snd_soc_dapm_route cht_rt5645_ssp0_aif1_map[] = {
 196         {"AIF1 Playback", NULL, "ssp0 Tx"},
 197         {"ssp0 Tx", NULL, "modem_out"},
 198         {"modem_in", NULL, "ssp0 Rx" },
 199         {"ssp0 Rx", NULL, "AIF1 Capture"},
 200 };
 201
 202 static const struct snd_soc_dapm_route cht_rt5645_ssp0_aif2_map[] = {
 203         {"AIF2 Playback", NULL, "ssp0 Tx"},
 204         {"ssp0 Tx", NULL, "modem_out"},
 205         {"modem_in", NULL, "ssp0 Rx" },
 206         {"ssp0 Rx", NULL, "AIF2 Capture"},
 207 };
 208
 209 static const struct snd_kcontrol_new cht_mc_controls[] = {
 210         SOC_DAPM_PIN_SWITCH("Headphone"),
 211         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 212         SOC_DAPM_PIN_SWITCH("Int Mic"),
 213         SOC_DAPM_PIN_SWITCH("Int Analog Mic"),
 214         SOC_DAPM_PIN_SWITCH("Ext Spk"),
 215 };
 216
 217 static struct snd_soc_jack_pin cht_bsw_jack_pins[] = {
 218         {
 219                 .pin    = "Headphone",
 220                 .mask   = SND_JACK_HEADPHONE,
 221         },
 222         {
 223                 .pin    = "Headset Mic",
 224                 .mask   = SND_JACK_MICROPHONE,
 225         },
 226 };
 227
 228 static int cht_aif1_hw_params(struct snd_pcm_substream *substream,
 229                              struct snd_pcm_hw_params *params)
 230 {
 231         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 232         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 233         int ret;
 234
 235         /* set codec PLL source to the 19.2MHz platform clock (MCLK) */
 236         ret = snd_soc_dai_set_pll(codec_dai, 0, RT5645_PLL1_S_MCLK,
 237                                   CHT_PLAT_CLK_3_HZ, params_rate(params) * 512);
 238         if (ret < 0) {
 239                 dev_err(rtd->dev, "can't set codec pll: %d\n", ret);
 240                 return ret;
 241         }
 242
 243         ret = snd_soc_dai_set_sysclk(codec_dai, RT5645_SCLK_S_PLL1,
 244                                 params_rate(params) * 512, SND_SOC_CLOCK_IN);
 245         if (ret < 0) {
 246                 dev_err(rtd->dev, "can't set codec sysclk: %d\n", ret);
 247                 return ret;
 248         }
 249
 250         return 0;
 251 }
 252
 253 /* uncomment when we have a real quirk
 254 static int cht_rt5645_quirk_cb(const struct dmi_system_id *id)
 255 {
 256         cht_rt5645_quirk = (unsigned long)id->driver_data;
 257         return 1;
 258 }
 259 */
 260
 261 static const struct dmi_system_id cht_rt5645_quirk_table[] = {
 262         {
 263         },
 264 };
 265
 266 static int cht_codec_init(struct snd_soc_pcm_runtime *runtime)
 267 {
 268         int ret;
 269         int jack_type;
 270         struct snd_soc_codec *codec = runtime->codec;
 271         struct snd_soc_card *card = runtime->card;
 272         struct cht_mc_private *ctx = snd_soc_card_get_drvdata(runtime->card);
 273
 274         if ((cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2) ||
 275             (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)) {
 276                 /* Select clk_i2s2_asrc as ASRC clock source */
 277                 rt5645_sel_asrc_clk_src(codec,
 278                                         RT5645_DA_STEREO_FILTER |
 279                                         RT5645_DA_MONO_L_FILTER |
 280                                         RT5645_DA_MONO_R_FILTER |
 281                                         RT5645_AD_STEREO_FILTER,
 282                                         RT5645_CLK_SEL_I2S2_ASRC);
 283         } else {
 284                 /* Select clk_i2s1_asrc as ASRC clock source */
 285                 rt5645_sel_asrc_clk_src(codec,
 286                                         RT5645_DA_STEREO_FILTER |
 287                                         RT5645_DA_MONO_L_FILTER |
 288                                         RT5645_DA_MONO_R_FILTER |
 289                                         RT5645_AD_STEREO_FILTER,
 290                                         RT5645_CLK_SEL_I2S1_ASRC);
 291         }
 292
 293         if (cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2) {
 294                 ret = snd_soc_dapm_add_routes(&card->dapm,
 295                                         cht_rt5645_ssp2_aif2_map,
 296                                         ARRAY_SIZE(cht_rt5645_ssp2_aif2_map));
 297         } else if (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1) {
 298                 ret = snd_soc_dapm_add_routes(&card->dapm,
 299                                         cht_rt5645_ssp0_aif1_map,
 300                                         ARRAY_SIZE(cht_rt5645_ssp0_aif1_map));
 301         } else if (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2) {
 302                 ret = snd_soc_dapm_add_routes(&card->dapm,
 303                                         cht_rt5645_ssp0_aif2_map,
 304                                         ARRAY_SIZE(cht_rt5645_ssp0_aif2_map));
 305         } else {
 306                 ret = snd_soc_dapm_add_routes(&card->dapm,
 307                                         cht_rt5645_ssp2_aif1_map,
 308                                         ARRAY_SIZE(cht_rt5645_ssp2_aif1_map));
 309         }
 310         if (ret)
 311                 return ret;
 312
 313         if (ctx->acpi_card->codec_type == CODEC_TYPE_RT5650)
 314                 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE |
 315                                         SND_JACK_BTN_0 | SND_JACK_BTN_1 |
 316                                         SND_JACK_BTN_2 | SND_JACK_BTN_3;
 317         else
 318                 jack_type = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE;
 319
 320         ret = snd_soc_card_jack_new(runtime->card, "Headset",
 321                                     jack_type, &ctx->jack,
 322                                     cht_bsw_jack_pins, ARRAY_SIZE(cht_bsw_jack_pins));
 323         if (ret) {
 324                 dev_err(runtime->dev, "Headset jack creation failed %d\n", ret);
 325                 return ret;
 326         }
 327
 328         rt5645_set_jack_detect(codec, &ctx->jack, &ctx->jack, &ctx->jack);
 329
 330         if (ctx->mclk) {
 331                 /*
 332                  * The firmware might enable the clock at
 333                  * boot (this information may or may not
 334                  * be reflected in the enable clock register).
 335                  * To change the rate we must disable the clock
 336                  * first to cover these cases. Due to common
 337                  * clock framework restrictions that do not allow
 338                  * to disable a clock that has not been enabled,
 339                  * we need to enable the clock first.
 340                  */
 341                 ret = clk_prepare_enable(ctx->mclk);
 342                 if (!ret)
 343                         clk_disable_unprepare(ctx->mclk);
 344
 345                 ret = clk_set_rate(ctx->mclk, CHT_PLAT_CLK_3_HZ);
 346
 347                 if (ret)
 348                         dev_err(runtime->dev, "unable to set MCLK rate\n");
 349         }
 350         return ret;
 351 }
 352
 353 static int cht_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 354                             struct snd_pcm_hw_params *params)
 355 {
 356         int ret;
 357         struct snd_interval *rate = hw_param_interval(params,
 358                         SNDRV_PCM_HW_PARAM_RATE);
 359         struct snd_interval *channels = hw_param_interval(params,
 360                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 361
 362         /* The DSP will covert the FE rate to 48k, stereo, 24bits */
 363         rate->min = rate->max = 48000;
 364         channels->min = channels->max = 2;
 365
 366         if ((cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1) ||
 367                 (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)) {
 368
 369                 /* set SSP0 to 16-bit */
 370                 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 371
 372                 /*
 373                  * Default mode for SSP configuration is TDM 4 slot, override config
 374                  * with explicit setting to I2S 2ch 16-bit. The word length is set with
 375                  * dai_set_tdm_slot() since there is no other API exposed
 376                  */
 377                 ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
 378                                         SND_SOC_DAIFMT_I2S     |
 379                                         SND_SOC_DAIFMT_NB_NF   |
 380                                         SND_SOC_DAIFMT_CBS_CFS
 381                         );
 382                 if (ret < 0) {
 383                         dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 384                         return ret;
 385                 }
 386
 387                 ret = snd_soc_dai_set_fmt(rtd->codec_dai,
 388                                         SND_SOC_DAIFMT_I2S     |
 389                                         SND_SOC_DAIFMT_NB_NF   |
 390                                         SND_SOC_DAIFMT_CBS_CFS
 391                         );
 392                 if (ret < 0) {
 393                         dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
 394                         return ret;
 395                 }
 396
 397                 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 16);
 398                 if (ret < 0) {
 399                         dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
 400                         return ret;
 401                 }
 402
 403         } else {
 404
 405                 /* set SSP2 to 24-bit */
 406                 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 407
 408                 /*
 409                  * Default mode for SSP configuration is TDM 4 slot
 410                  */
 411                 ret = snd_soc_dai_set_fmt(rtd->codec_dai,
 412                                         SND_SOC_DAIFMT_DSP_B |
 413                                         SND_SOC_DAIFMT_IB_NF |
 414                                         SND_SOC_DAIFMT_CBS_CFS);
 415                 if (ret < 0) {
 416                         dev_err(rtd->dev, "can't set format to TDM %d\n", ret);
 417                         return ret;
 418                 }
 419
 420                 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */
 421                 ret = snd_soc_dai_set_tdm_slot(rtd->codec_dai, 0xF, 0xF, 4, 24);
 422                 if (ret < 0) {
 423                         dev_err(rtd->dev, "can't set codec TDM slot %d\n", ret);
 424                         return ret;
 425                 }
 426         }
 427         return 0;
 428 }
 429
 430 static int cht_aif1_startup(struct snd_pcm_substream *substream)
 431 {
 432         return snd_pcm_hw_constraint_single(substream->runtime,
 433                         SNDRV_PCM_HW_PARAM_RATE, 48000);
 434 }
 435
 436 static const struct snd_soc_ops cht_aif1_ops = {
 437         .startup = cht_aif1_startup,
 438 };
 439
 440 static const struct snd_soc_ops cht_be_ssp2_ops = {
 441         .hw_params = cht_aif1_hw_params,
 442 };
 443
 444 static struct snd_soc_dai_link cht_dailink[] = {
 445         [MERR_DPCM_AUDIO] = {
 446                 .name = "Audio Port",
 447                 .stream_name = "Audio",
 448                 .cpu_dai_name = "media-cpu-dai",
 449                 .codec_dai_name = "snd-soc-dummy-dai",
 450                 .codec_name = "snd-soc-dummy",
 451                 .platform_name = "sst-mfld-platform",
 452                 .nonatomic = true,
 453                 .dynamic = 1,
 454                 .dpcm_playback = 1,
 455                 .dpcm_capture = 1,
 456                 .ops = &cht_aif1_ops,
 457         },
 458         [MERR_DPCM_DEEP_BUFFER] = {
 459                 .name = "Deep-Buffer Audio Port",
 460                 .stream_name = "Deep-Buffer Audio",
 461                 .cpu_dai_name = "deepbuffer-cpu-dai",
 462                 .codec_dai_name = "snd-soc-dummy-dai",
 463                 .codec_name = "snd-soc-dummy",
 464                 .platform_name = "sst-mfld-platform",
 465                 .nonatomic = true,
 466                 .dynamic = 1,
 467                 .dpcm_playback = 1,
 468                 .ops = &cht_aif1_ops,
 469         },
 470         [MERR_DPCM_COMPR] = {
 471                 .name = "Compressed Port",
 472                 .stream_name = "Compress",
 473                 .cpu_dai_name = "compress-cpu-dai",
 474                 .codec_dai_name = "snd-soc-dummy-dai",
 475                 .codec_name = "snd-soc-dummy",
 476                 .platform_name = "sst-mfld-platform",
 477         },
 478         /* CODEC<->CODEC link */
 479         /* back ends */
 480         {
 481                 .name = "SSP2-Codec",
 482                 .id = 1,
 483                 .cpu_dai_name = "ssp2-port",
 484                 .platform_name = "sst-mfld-platform",
 485                 .no_pcm = 1,
 486                 .codec_dai_name = "rt5645-aif1",
 487                 .codec_name = "i2c-10EC5645:00",
 488                 .init = cht_codec_init,
 489                 .be_hw_params_fixup = cht_codec_fixup,
 490                 .nonatomic = true,
 491                 .dpcm_playback = 1,
 492                 .dpcm_capture = 1,
 493                 .ops = &cht_be_ssp2_ops,
 494         },
 495 };
 496
 497 /* SoC card */
 498 static struct snd_soc_card snd_soc_card_chtrt5645 = {
 499         .name = "chtrt5645",
 500         .owner = THIS_MODULE,
 501         .dai_link = cht_dailink,
 502         .num_links = ARRAY_SIZE(cht_dailink),
 503         .dapm_widgets = cht_dapm_widgets,
 504         .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
 505         .dapm_routes = cht_rt5645_audio_map,
 506         .num_dapm_routes = ARRAY_SIZE(cht_rt5645_audio_map),
 507         .controls = cht_mc_controls,
 508         .num_controls = ARRAY_SIZE(cht_mc_controls),
 509 };
 510
 511 static struct snd_soc_card snd_soc_card_chtrt5650 = {
 512         .name = "chtrt5650",
 513         .owner = THIS_MODULE,
 514         .dai_link = cht_dailink,
 515         .num_links = ARRAY_SIZE(cht_dailink),
 516         .dapm_widgets = cht_dapm_widgets,
 517         .num_dapm_widgets = ARRAY_SIZE(cht_dapm_widgets),
 518         .dapm_routes = cht_rt5650_audio_map,
 519         .num_dapm_routes = ARRAY_SIZE(cht_rt5650_audio_map),
 520         .controls = cht_mc_controls,
 521         .num_controls = ARRAY_SIZE(cht_mc_controls),
 522 };
 523
 524 static struct cht_acpi_card snd_soc_cards[] = {
 525         {"10EC5640", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645},
 526         {"10EC5645", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645},
 527         {"10EC5648", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645},
 528         {"10EC3270", CODEC_TYPE_RT5645, &snd_soc_card_chtrt5645},
 529         {"10EC5650", CODEC_TYPE_RT5650, &snd_soc_card_chtrt5650},
 530 };
 531
 532 static char cht_rt5645_codec_name[16]; /* i2c-<HID>:00 with HID being 8 chars */
 533 static char cht_rt5645_codec_aif_name[12]; /*  = "rt5645-aif[1|2]" */
 534 static char cht_rt5645_cpu_dai_name[10]; /*  = "ssp[0|2]-port" */
 535
 536 static bool is_valleyview(void)
 537 {
 538         static const struct x86_cpu_id cpu_ids[] = {
 539                 { X86_VENDOR_INTEL, 6, 55 }, /* Valleyview, Bay Trail */
 540                 {}
 541         };
 542
 543         if (!x86_match_cpu(cpu_ids))
 544                 return false;
 545         return true;
 546 }
 547
 548 struct acpi_chan_package {   /* ACPICA seems to require 64 bit integers */
 549         u64 aif_value;       /* 1: AIF1, 2: AIF2 */
 550         u64 mclock_value;    /* usually 25MHz (0x17d7940), ignored */
 551 };
 552
 553 static int snd_cht_mc_probe(struct platform_device *pdev)
 554 {
 555         int ret_val = 0;
 556         int i;
 557         struct cht_mc_private *drv;
 558         struct snd_soc_card *card = snd_soc_cards[0].soc_card;
 559         struct sst_acpi_mach *mach;
 560         const char *i2c_name = NULL;
 561         int dai_index = 0;
 562         bool found = false;
 563         bool is_bytcr = false;
 564
 565         drv = devm_kzalloc(&pdev->dev, sizeof(*drv), GFP_ATOMIC);
 566         if (!drv)
 567                 return -ENOMEM;
 568
 569         mach = (&pdev->dev)->platform_data;
 570
 571         for (i = 0; i < ARRAY_SIZE(snd_soc_cards); i++) {
 572                 if (acpi_dev_found(snd_soc_cards[i].codec_id) &&
 573                         (!strncmp(snd_soc_cards[i].codec_id, mach->id, 8))) {
 574                         dev_dbg(&pdev->dev,
 575                                 "found codec %s\n", snd_soc_cards[i].codec_id);
 576                         card = snd_soc_cards[i].soc_card;
 577                         drv->acpi_card = &snd_soc_cards[i];
 578                         found = true;
 579                         break;
 580                 }
 581         }
 582
 583         if (!found) {
 584                 dev_err(&pdev->dev, "No matching HID found in supported list\n");
 585                 return -ENODEV;
 586         }
 587
 588         card->dev = &pdev->dev;
 589         sprintf(drv->codec_name, "i2c-%s:00", drv->acpi_card->codec_id);
 590
 591         /* set correct codec name */
 592         for (i = 0; i < ARRAY_SIZE(cht_dailink); i++)
 593                 if (!strcmp(card->dai_link[i].codec_name, "i2c-10EC5645:00")) {
 594                         card->dai_link[i].codec_name = drv->codec_name;
 595                         dai_index = i;
 596                 }
 597
 598         /* fixup codec name based on HID */
 599         i2c_name = sst_acpi_find_name_from_hid(mach->id);
 600         if (i2c_name != NULL) {
 601                 snprintf(cht_rt5645_codec_name, sizeof(cht_rt5645_codec_name),
 602                         "%s%s", "i2c-", i2c_name);
 603                 cht_dailink[dai_index].codec_name = cht_rt5645_codec_name;
 604         }
 605
 606         /*
 607          * swap SSP0 if bytcr is detected
 608          * (will be overridden if DMI quirk is detected)
 609          */
 610         if (is_valleyview()) {
 611                 struct sst_platform_info *p_info = mach->pdata;
 612                 const struct sst_res_info *res_info = p_info->res_info;
 613
 614                 if (res_info->acpi_ipc_irq_index == 0)
 615                         is_bytcr = true;
 616         }
 617
 618         if (is_bytcr) {
 619                 /*
 620                  * Baytrail CR platforms may have CHAN package in BIOS, try
 621                  * to find relevant routing quirk based as done on Windows
 622                  * platforms. We have to read the information directly from the
 623                  * BIOS, at this stage the card is not created and the links
 624                  * with the codec driver/pdata are non-existent
 625                  */
 626
 627                 struct acpi_chan_package chan_package;
 628
 629                 /* format specified: 2 64-bit integers */
 630                 struct acpi_buffer format = {sizeof("NN"), "NN"};
 631                 struct acpi_buffer state = {0, NULL};
 632                 struct sst_acpi_package_context pkg_ctx;
 633                 bool pkg_found = false;
 634
 635                 state.length = sizeof(chan_package);
 636                 state.pointer = &chan_package;
 637
 638                 pkg_ctx.name = "CHAN";
 639                 pkg_ctx.length = 2;
 640                 pkg_ctx.format = &format;
 641                 pkg_ctx.state = &state;
 642                 pkg_ctx.data_valid = false;
 643
 644                 pkg_found = sst_acpi_find_package_from_hid(mach->id, &pkg_ctx);
 645                 if (pkg_found) {
 646                         if (chan_package.aif_value == 1) {
 647                                 dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
 648                                 cht_rt5645_quirk |= CHT_RT5645_SSP0_AIF1;
 649                         } else  if (chan_package.aif_value == 2) {
 650                                 dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
 651                                 cht_rt5645_quirk |= CHT_RT5645_SSP0_AIF2;
 652                         } else {
 653                                 dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
 654                                 pkg_found = false;
 655                         }
 656                 }
 657
 658                 if (!pkg_found) {
 659                         /* no BIOS indications, assume SSP0-AIF2 connection */
 660                         cht_rt5645_quirk |= CHT_RT5645_SSP0_AIF2;
 661                 }
 662         }
 663
 664         /* check quirks before creating card */
 665         dmi_check_system(cht_rt5645_quirk_table);
 666         log_quirks(&pdev->dev);
 667
 668         if ((cht_rt5645_quirk & CHT_RT5645_SSP2_AIF2) ||
 669                 (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)) {
 670
 671                 /* fixup codec aif name */
 672                 snprintf(cht_rt5645_codec_aif_name,
 673                         sizeof(cht_rt5645_codec_aif_name),
 674                         "%s", "rt5645-aif2");
 675
 676                 cht_dailink[dai_index].codec_dai_name =
 677                         cht_rt5645_codec_aif_name;
 678         }
 679
 680         if ((cht_rt5645_quirk & CHT_RT5645_SSP0_AIF1) ||
 681                 (cht_rt5645_quirk & CHT_RT5645_SSP0_AIF2)) {
 682
 683                 /* fixup cpu dai name name */
 684                 snprintf(cht_rt5645_cpu_dai_name,
 685                         sizeof(cht_rt5645_cpu_dai_name),
 686                         "%s", "ssp0-port");
 687
 688                 cht_dailink[dai_index].cpu_dai_name =
 689                         cht_rt5645_cpu_dai_name;
 690         }
 691
 692         if (is_valleyview()) {
 693                 drv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
 694                 if (IS_ERR(drv->mclk)) {
 695                         dev_err(&pdev->dev,
 696                                 "Failed to get MCLK from pmc_plt_clk_3: %ld\n",
 697                                 PTR_ERR(drv->mclk));
 698                         return PTR_ERR(drv->mclk);
 699                 }
 700         }
 701
 702         snd_soc_card_set_drvdata(card, drv);
 703         ret_val = devm_snd_soc_register_card(&pdev->dev, card);
 704         if (ret_val) {
 705                 dev_err(&pdev->dev,
 706                         "snd_soc_register_card failed %d\n", ret_val);
 707                 return ret_val;
 708         }
 709         platform_set_drvdata(pdev, card);
 710         return ret_val;
 711 }
 712
 713 static struct platform_driver snd_cht_mc_driver = {
 714         .driver = {
 715                 .name = "cht-bsw-rt5645",
 716         },
 717         .probe = snd_cht_mc_probe,
 718 };
 719
 720 module_platform_driver(snd_cht_mc_driver)
 721
 722 MODULE_DESCRIPTION("ASoC Intel(R) Braswell Machine driver");
 723 MODULE_AUTHOR("Fang, Yang A,N,Harshapriya");
 724 MODULE_LICENSE("GPL v2");
 725 MODULE_ALIAS("platform:cht-bsw-rt5645");