sound/soc/intel/boards/bytcr_rt5651.c

   1 /*
   2  *  bytcr_rt5651.c - ASoc Machine driver for Intel Byt CR platform
   3  *  (derived from bytcr_rt5640.c)
   4  *
   5  *  Copyright (C) 2015 Intel Corp
   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/i2c.h>
  22 #include <linux/module.h>
  23 #include <linux/platform_device.h>
  24 #include <linux/property.h>
  25 #include <linux/acpi.h>
  26 #include <linux/clk.h>
  27 #include <linux/device.h>
  28 #include <linux/dmi.h>
  29 #include <linux/input.h>
  30 #include <linux/gpio/consumer.h>
  31 #include <linux/gpio/machine.h>
  32 #include <linux/slab.h>
  33 #include <asm/cpu_device_id.h>
  34 #include <asm/intel-family.h>
  35 #include <sound/pcm.h>
  36 #include <sound/pcm_params.h>
  37 #include <sound/soc.h>
  38 #include <sound/jack.h>
  39 #include <sound/soc-acpi.h>
  40 #include "../../codecs/rt5651.h"
  41 #include "../atom/sst-atom-controls.h"
  42
  43 enum {
  44         BYT_RT5651_DMIC_MAP,
  45         BYT_RT5651_IN1_MAP,
  46         BYT_RT5651_IN2_MAP,
  47         BYT_RT5651_IN1_IN2_MAP,
  48 };
  49
  50 enum {
  51         BYT_RT5651_JD_NULL      = (RT5651_JD_NULL << 4),
  52         BYT_RT5651_JD1_1        = (RT5651_JD1_1 << 4),
  53         BYT_RT5651_JD1_2        = (RT5651_JD1_2 << 4),
  54         BYT_RT5651_JD2          = (RT5651_JD2 << 4),
  55 };
  56
  57 enum {
  58         BYT_RT5651_OVCD_TH_600UA  = (6 << 8),
  59         BYT_RT5651_OVCD_TH_1500UA = (15 << 8),
  60         BYT_RT5651_OVCD_TH_2000UA = (20 << 8),
  61 };
  62
  63 enum {
  64         BYT_RT5651_OVCD_SF_0P5  = (RT5651_OVCD_SF_0P5 << 13),
  65         BYT_RT5651_OVCD_SF_0P75 = (RT5651_OVCD_SF_0P75 << 13),
  66         BYT_RT5651_OVCD_SF_1P0  = (RT5651_OVCD_SF_1P0 << 13),
  67         BYT_RT5651_OVCD_SF_1P5  = (RT5651_OVCD_SF_1P5 << 13),
  68 };
  69
  70 #define BYT_RT5651_MAP(quirk)           ((quirk) & GENMASK(3, 0))
  71 #define BYT_RT5651_JDSRC(quirk)         (((quirk) & GENMASK(7, 4)) >> 4)
  72 #define BYT_RT5651_OVCD_TH(quirk)       (((quirk) & GENMASK(12, 8)) >> 8)
  73 #define BYT_RT5651_OVCD_SF(quirk)       (((quirk) & GENMASK(14, 13)) >> 13)
  74 #define BYT_RT5651_DMIC_EN              BIT(16)
  75 #define BYT_RT5651_MCLK_EN              BIT(17)
  76 #define BYT_RT5651_MCLK_25MHZ           BIT(18)
  77 #define BYT_RT5651_SSP2_AIF2            BIT(19) /* default is using AIF1  */
  78 #define BYT_RT5651_SSP0_AIF1            BIT(20)
  79 #define BYT_RT5651_SSP0_AIF2            BIT(21)
  80 #define BYT_RT5651_HP_LR_SWAPPED        BIT(22)
  81 #define BYT_RT5651_MONO_SPEAKER         BIT(23)
  82
  83 #define BYT_RT5651_DEFAULT_QUIRKS       (BYT_RT5651_MCLK_EN | \
  84                                          BYT_RT5651_JD1_1   | \
  85                                          BYT_RT5651_OVCD_TH_2000UA | \
  86                                          BYT_RT5651_OVCD_SF_0P75)
  87
  88 /* jack-detect-source + dmic-en + ovcd-th + -sf + terminating empty entry */
  89 #define MAX_NO_PROPS 5
  90
  91 struct byt_rt5651_private {
  92         struct clk *mclk;
  93         struct gpio_desc *ext_amp_gpio;
  94         struct snd_soc_jack jack;
  95 };
  96
  97 /* Default: jack-detect on JD1_1, internal mic on in2, headsetmic on in3 */
  98 static unsigned long byt_rt5651_quirk = BYT_RT5651_DEFAULT_QUIRKS |
  99                                         BYT_RT5651_IN2_MAP;
 100
 101 static void log_quirks(struct device *dev)
 102 {
 103         if (BYT_RT5651_MAP(byt_rt5651_quirk) == BYT_RT5651_DMIC_MAP)
 104                 dev_info(dev, "quirk DMIC_MAP enabled");
 105         if (BYT_RT5651_MAP(byt_rt5651_quirk) == BYT_RT5651_IN1_MAP)
 106                 dev_info(dev, "quirk IN1_MAP enabled");
 107         if (BYT_RT5651_MAP(byt_rt5651_quirk) == BYT_RT5651_IN2_MAP)
 108                 dev_info(dev, "quirk IN2_MAP enabled");
 109         if (BYT_RT5651_MAP(byt_rt5651_quirk) == BYT_RT5651_IN1_IN2_MAP)
 110                 dev_info(dev, "quirk IN1_IN2_MAP enabled");
 111         if (BYT_RT5651_JDSRC(byt_rt5651_quirk)) {
 112                 dev_info(dev, "quirk realtek,jack-detect-source %ld\n",
 113                          BYT_RT5651_JDSRC(byt_rt5651_quirk));
 114                 dev_info(dev, "quirk realtek,over-current-threshold-microamp %ld\n",
 115                          BYT_RT5651_OVCD_TH(byt_rt5651_quirk) * 100);
 116                 dev_info(dev, "quirk realtek,over-current-scale-factor %ld\n",
 117                          BYT_RT5651_OVCD_SF(byt_rt5651_quirk));
 118         }
 119         if (byt_rt5651_quirk & BYT_RT5651_DMIC_EN)
 120                 dev_info(dev, "quirk DMIC enabled");
 121         if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN)
 122                 dev_info(dev, "quirk MCLK_EN enabled");
 123         if (byt_rt5651_quirk & BYT_RT5651_MCLK_25MHZ)
 124                 dev_info(dev, "quirk MCLK_25MHZ enabled");
 125         if (byt_rt5651_quirk & BYT_RT5651_SSP2_AIF2)
 126                 dev_info(dev, "quirk SSP2_AIF2 enabled\n");
 127         if (byt_rt5651_quirk & BYT_RT5651_SSP0_AIF1)
 128                 dev_info(dev, "quirk SSP0_AIF1 enabled\n");
 129         if (byt_rt5651_quirk & BYT_RT5651_SSP0_AIF2)
 130                 dev_info(dev, "quirk SSP0_AIF2 enabled\n");
 131         if (byt_rt5651_quirk & BYT_RT5651_MONO_SPEAKER)
 132                 dev_info(dev, "quirk MONO_SPEAKER enabled\n");
 133 }
 134
 135 #define BYT_CODEC_DAI1  "rt5651-aif1"
 136 #define BYT_CODEC_DAI2  "rt5651-aif2"
 137
 138 static int byt_rt5651_prepare_and_enable_pll1(struct snd_soc_dai *codec_dai,
 139                                               int rate, int bclk_ratio)
 140 {
 141         int clk_id, clk_freq, ret;
 142
 143         /* Configure the PLL before selecting it */
 144         if (!(byt_rt5651_quirk & BYT_RT5651_MCLK_EN)) {
 145                 clk_id = RT5651_PLL1_S_BCLK1,
 146                 clk_freq = rate * bclk_ratio;
 147         } else {
 148                 clk_id = RT5651_PLL1_S_MCLK;
 149                 if (byt_rt5651_quirk & BYT_RT5651_MCLK_25MHZ)
 150                         clk_freq = 25000000;
 151                 else
 152                         clk_freq = 19200000;
 153         }
 154         ret = snd_soc_dai_set_pll(codec_dai, 0, clk_id, clk_freq, rate * 512);
 155         if (ret < 0) {
 156                 dev_err(codec_dai->component->dev, "can't set pll: %d\n", ret);
 157                 return ret;
 158         }
 159
 160         ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_PLL1,
 161                                      rate * 512, SND_SOC_CLOCK_IN);
 162         if (ret < 0) {
 163                 dev_err(codec_dai->component->dev, "can't set clock %d\n", ret);
 164                 return ret;
 165         }
 166
 167         return 0;
 168 }
 169
 170 static int platform_clock_control(struct snd_soc_dapm_widget *w,
 171                                   struct snd_kcontrol *k, int  event)
 172 {
 173         struct snd_soc_dapm_context *dapm = w->dapm;
 174         struct snd_soc_card *card = dapm->card;
 175         struct snd_soc_dai *codec_dai;
 176         struct byt_rt5651_private *priv = snd_soc_card_get_drvdata(card);
 177         int ret;
 178
 179         codec_dai = snd_soc_card_get_codec_dai(card, BYT_CODEC_DAI1);
 180         if (!codec_dai)
 181                 codec_dai = snd_soc_card_get_codec_dai(card, BYT_CODEC_DAI2);
 182         if (!codec_dai) {
 183                 dev_err(card->dev,
 184                         "Codec dai not found; Unable to set platform clock\n");
 185                 return -EIO;
 186         }
 187
 188         if (SND_SOC_DAPM_EVENT_ON(event)) {
 189                 if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN) {
 190                         ret = clk_prepare_enable(priv->mclk);
 191                         if (ret < 0) {
 192                                 dev_err(card->dev,
 193                                         "could not configure MCLK state");
 194                                 return ret;
 195                         }
 196                 }
 197                 ret = byt_rt5651_prepare_and_enable_pll1(codec_dai, 48000, 50);
 198         } else {
 199                 /*
 200                  * Set codec clock source to internal clock before
 201                  * turning off the platform clock. Codec needs clock
 202                  * for Jack detection and button press
 203                  */
 204                 ret = snd_soc_dai_set_sysclk(codec_dai, RT5651_SCLK_S_RCCLK,
 205                                              48000 * 512,
 206                                              SND_SOC_CLOCK_IN);
 207                 if (!ret)
 208                         if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN)
 209                                 clk_disable_unprepare(priv->mclk);
 210         }
 211
 212         if (ret < 0) {
 213                 dev_err(card->dev, "can't set codec sysclk: %d\n", ret);
 214                 return ret;
 215         }
 216
 217         return 0;
 218 }
 219
 220 static int rt5651_ext_amp_power_event(struct snd_soc_dapm_widget *w,
 221         struct snd_kcontrol *kcontrol, int event)
 222 {
 223         struct snd_soc_card *card = w->dapm->card;
 224         struct byt_rt5651_private *priv = snd_soc_card_get_drvdata(card);
 225
 226         if (SND_SOC_DAPM_EVENT_ON(event))
 227                 gpiod_set_value_cansleep(priv->ext_amp_gpio, 1);
 228         else
 229                 gpiod_set_value_cansleep(priv->ext_amp_gpio, 0);
 230
 231         return 0;
 232 }
 233
 234 static const struct snd_soc_dapm_widget byt_rt5651_widgets[] = {
 235         SND_SOC_DAPM_HP("Headphone", NULL),
 236         SND_SOC_DAPM_MIC("Headset Mic", NULL),
 237         SND_SOC_DAPM_MIC("Internal Mic", NULL),
 238         SND_SOC_DAPM_SPK("Speaker", NULL),
 239         SND_SOC_DAPM_LINE("Line In", NULL),
 240         SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
 241                             platform_clock_control, SND_SOC_DAPM_PRE_PMU |
 242                             SND_SOC_DAPM_POST_PMD),
 243         SND_SOC_DAPM_SUPPLY("Ext Amp Power", SND_SOC_NOPM, 0, 0,
 244                             rt5651_ext_amp_power_event,
 245                             SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMU),
 246 };
 247
 248 static const struct snd_soc_dapm_route byt_rt5651_audio_map[] = {
 249         {"Headphone", NULL, "Platform Clock"},
 250         {"Headset Mic", NULL, "Platform Clock"},
 251         {"Internal Mic", NULL, "Platform Clock"},
 252         {"Speaker", NULL, "Platform Clock"},
 253         {"Speaker", NULL, "Ext Amp Power"},
 254         {"Line In", NULL, "Platform Clock"},
 255
 256         {"Headset Mic", NULL, "micbias1"}, /* lowercase for rt5651 */
 257         {"Headphone", NULL, "HPOL"},
 258         {"Headphone", NULL, "HPOR"},
 259         {"Speaker", NULL, "LOUTL"},
 260         {"Speaker", NULL, "LOUTR"},
 261         {"IN2P", NULL, "Line In"},
 262         {"IN2N", NULL, "Line In"},
 263
 264 };
 265
 266 static const struct snd_soc_dapm_route byt_rt5651_intmic_dmic_map[] = {
 267         {"DMIC L1", NULL, "Internal Mic"},
 268         {"DMIC R1", NULL, "Internal Mic"},
 269         {"IN3P", NULL, "Headset Mic"},
 270 };
 271
 272 static const struct snd_soc_dapm_route byt_rt5651_intmic_in1_map[] = {
 273         {"Internal Mic", NULL, "micbias1"},
 274         {"IN1P", NULL, "Internal Mic"},
 275         {"IN3P", NULL, "Headset Mic"},
 276 };
 277
 278 static const struct snd_soc_dapm_route byt_rt5651_intmic_in2_map[] = {
 279         {"Internal Mic", NULL, "micbias1"},
 280         {"IN2P", NULL, "Internal Mic"},
 281         {"IN3P", NULL, "Headset Mic"},
 282 };
 283
 284 static const struct snd_soc_dapm_route byt_rt5651_intmic_in1_in2_map[] = {
 285         {"Internal Mic", NULL, "micbias1"},
 286         {"IN1P", NULL, "Internal Mic"},
 287         {"IN2P", NULL, "Internal Mic"},
 288         {"IN3P", NULL, "Headset Mic"},
 289 };
 290
 291 static const struct snd_soc_dapm_route byt_rt5651_ssp0_aif1_map[] = {
 292         {"ssp0 Tx", NULL, "modem_out"},
 293         {"modem_in", NULL, "ssp0 Rx"},
 294
 295         {"AIF1 Playback", NULL, "ssp0 Tx"},
 296         {"ssp0 Rx", NULL, "AIF1 Capture"},
 297 };
 298
 299 static const struct snd_soc_dapm_route byt_rt5651_ssp0_aif2_map[] = {
 300         {"ssp0 Tx", NULL, "modem_out"},
 301         {"modem_in", NULL, "ssp0 Rx"},
 302
 303         {"AIF2 Playback", NULL, "ssp0 Tx"},
 304         {"ssp0 Rx", NULL, "AIF2 Capture"},
 305 };
 306
 307 static const struct snd_soc_dapm_route byt_rt5651_ssp2_aif1_map[] = {
 308         {"ssp2 Tx", NULL, "codec_out0"},
 309         {"ssp2 Tx", NULL, "codec_out1"},
 310         {"codec_in0", NULL, "ssp2 Rx"},
 311         {"codec_in1", NULL, "ssp2 Rx"},
 312
 313         {"AIF1 Playback", NULL, "ssp2 Tx"},
 314         {"ssp2 Rx", NULL, "AIF1 Capture"},
 315 };
 316
 317 static const struct snd_soc_dapm_route byt_rt5651_ssp2_aif2_map[] = {
 318         {"ssp2 Tx", NULL, "codec_out0"},
 319         {"ssp2 Tx", NULL, "codec_out1"},
 320         {"codec_in0", NULL, "ssp2 Rx"},
 321         {"codec_in1", NULL, "ssp2 Rx"},
 322
 323         {"AIF2 Playback", NULL, "ssp2 Tx"},
 324         {"ssp2 Rx", NULL, "AIF2 Capture"},
 325 };
 326
 327 static const struct snd_kcontrol_new byt_rt5651_controls[] = {
 328         SOC_DAPM_PIN_SWITCH("Headphone"),
 329         SOC_DAPM_PIN_SWITCH("Headset Mic"),
 330         SOC_DAPM_PIN_SWITCH("Internal Mic"),
 331         SOC_DAPM_PIN_SWITCH("Speaker"),
 332         SOC_DAPM_PIN_SWITCH("Line In"),
 333 };
 334
 335 static struct snd_soc_jack_pin bytcr_jack_pins[] = {
 336         {
 337                 .pin    = "Headphone",
 338                 .mask   = SND_JACK_HEADPHONE,
 339         },
 340         {
 341                 .pin    = "Headset Mic",
 342                 .mask   = SND_JACK_MICROPHONE,
 343         },
 344 };
 345
 346 static int byt_rt5651_aif1_hw_params(struct snd_pcm_substream *substream,
 347                                         struct snd_pcm_hw_params *params)
 348 {
 349         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 350         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 351         snd_pcm_format_t format = params_format(params);
 352         int rate = params_rate(params);
 353         int bclk_ratio;
 354
 355         if (format == SNDRV_PCM_FORMAT_S16_LE)
 356                 bclk_ratio = 32;
 357         else
 358                 bclk_ratio = 50;
 359
 360         return byt_rt5651_prepare_and_enable_pll1(codec_dai, rate, bclk_ratio);
 361 }
 362
 363 static int byt_rt5651_quirk_cb(const struct dmi_system_id *id)
 364 {
 365         byt_rt5651_quirk = (unsigned long)id->driver_data;
 366         return 1;
 367 }
 368
 369 static const struct dmi_system_id byt_rt5651_quirk_table[] = {
 370         {
 371                 /* Chuwi Hi8 Pro (CWI513) */
 372                 .callback = byt_rt5651_quirk_cb,
 373                 .matches = {
 374                         DMI_MATCH(DMI_SYS_VENDOR, "Hampoo"),
 375                         DMI_MATCH(DMI_PRODUCT_NAME, "X1D3_C806N"),
 376                 },
 377                 .driver_data = (void *)(BYT_RT5651_DEFAULT_QUIRKS |
 378                                         BYT_RT5651_IN2_MAP |
 379                                         BYT_RT5651_HP_LR_SWAPPED |
 380                                         BYT_RT5651_MONO_SPEAKER),
 381         },
 382         {
 383                 /* Chuwi Vi8 Plus (CWI519) */
 384                 .callback = byt_rt5651_quirk_cb,
 385                 .matches = {
 386                         DMI_MATCH(DMI_SYS_VENDOR, "Hampoo"),
 387                         DMI_MATCH(DMI_PRODUCT_NAME, "D2D3_Vi8A1"),
 388                 },
 389                 .driver_data = (void *)(BYT_RT5651_DEFAULT_QUIRKS |
 390                                         BYT_RT5651_IN2_MAP |
 391                                         BYT_RT5651_HP_LR_SWAPPED |
 392                                         BYT_RT5651_MONO_SPEAKER),
 393         },
 394         {
 395                 /* I.T.Works TW701, Ployer Momo7w and Trekstor ST70416-6
 396                  * (these all use the same mainboard) */
 397                 .callback = byt_rt5651_quirk_cb,
 398                 .matches = {
 399                         DMI_MATCH(DMI_BIOS_VENDOR, "INSYDE Corp."),
 400                         /* Partial match for all of itWORKS.G.WI71C.JGBMRBA,
 401                          * TREK.G.WI71C.JGBMRBA0x and MOMO.G.WI71C.MABMRBA02 */
 402                         DMI_MATCH(DMI_BIOS_VERSION, ".G.WI71C."),
 403                 },
 404                 .driver_data = (void *)(BYT_RT5651_DEFAULT_QUIRKS |
 405                                         BYT_RT5651_IN2_MAP |
 406                                         BYT_RT5651_SSP0_AIF1 |
 407                                         BYT_RT5651_MONO_SPEAKER),
 408         },
 409         {
 410                 /* KIANO SlimNote 14.2 */
 411                 .callback = byt_rt5651_quirk_cb,
 412                 .matches = {
 413                         DMI_MATCH(DMI_SYS_VENDOR, "KIANO"),
 414                         DMI_MATCH(DMI_PRODUCT_NAME, "KIANO SlimNote 14.2"),
 415                 },
 416                 .driver_data = (void *)(BYT_RT5651_DEFAULT_QUIRKS |
 417                                         BYT_RT5651_IN1_IN2_MAP),
 418         },
 419         {
 420                 /* Minnowboard Max B3 */
 421                 .callback = byt_rt5651_quirk_cb,
 422                 .matches = {
 423                         DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"),
 424                         DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max B3 PLATFORM"),
 425                 },
 426                 .driver_data = (void *)(BYT_RT5651_IN1_MAP),
 427         },
 428         {
 429                 /* Minnowboard Turbot */
 430                 .callback = byt_rt5651_quirk_cb,
 431                 .matches = {
 432                         DMI_MATCH(DMI_SYS_VENDOR, "ADI"),
 433                         DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Turbot"),
 434                 },
 435                 .driver_data = (void *)(BYT_RT5651_MCLK_EN |
 436                                         BYT_RT5651_IN1_MAP),
 437         },
 438         {
 439                 /* VIOS LTH17 */
 440                 .callback = byt_rt5651_quirk_cb,
 441                 .matches = {
 442                         DMI_MATCH(DMI_SYS_VENDOR, "VIOS"),
 443                         DMI_MATCH(DMI_PRODUCT_NAME, "LTH17"),
 444                 },
 445                 .driver_data = (void *)(BYT_RT5651_IN1_IN2_MAP |
 446                                         BYT_RT5651_JD1_1 |
 447                                         BYT_RT5651_OVCD_TH_2000UA |
 448                                         BYT_RT5651_OVCD_SF_1P0 |
 449                                         BYT_RT5651_MCLK_EN),
 450         },
 451         {
 452                 /* Yours Y8W81 (and others using the same mainboard) */
 453                 .callback = byt_rt5651_quirk_cb,
 454                 .matches = {
 455                         DMI_MATCH(DMI_BIOS_VENDOR, "INSYDE Corp."),
 456                         /* Partial match for all devs with a W86C mainboard */
 457                         DMI_MATCH(DMI_BIOS_VERSION, ".F.W86C."),
 458                 },
 459                 .driver_data = (void *)(BYT_RT5651_DEFAULT_QUIRKS |
 460                                         BYT_RT5651_IN2_MAP |
 461                                         BYT_RT5651_SSP0_AIF1 |
 462                                         BYT_RT5651_MONO_SPEAKER),
 463         },
 464         {}
 465 };
 466
 467 /*
 468  * Note this MUST be called before snd_soc_register_card(), so that the props
 469  * are in place before the codec component driver's probe function parses them.
 470  */
 471 static int byt_rt5651_add_codec_device_props(struct device *i2c_dev)
 472 {
 473         struct property_entry props[MAX_NO_PROPS] = {};
 474         int cnt = 0;
 475
 476         props[cnt++] = PROPERTY_ENTRY_U32("realtek,jack-detect-source",
 477                                 BYT_RT5651_JDSRC(byt_rt5651_quirk));
 478
 479         props[cnt++] = PROPERTY_ENTRY_U32("realtek,over-current-threshold-microamp",
 480                                 BYT_RT5651_OVCD_TH(byt_rt5651_quirk) * 100);
 481
 482         props[cnt++] = PROPERTY_ENTRY_U32("realtek,over-current-scale-factor",
 483                                 BYT_RT5651_OVCD_SF(byt_rt5651_quirk));
 484
 485         if (byt_rt5651_quirk & BYT_RT5651_DMIC_EN)
 486                 props[cnt++] = PROPERTY_ENTRY_BOOL("realtek,dmic-en");
 487
 488         return device_add_properties(i2c_dev, props);
 489 }
 490
 491 static int byt_rt5651_init(struct snd_soc_pcm_runtime *runtime)
 492 {
 493         struct snd_soc_card *card = runtime->card;
 494         struct snd_soc_component *codec = runtime->codec_dai->component;
 495         struct byt_rt5651_private *priv = snd_soc_card_get_drvdata(card);
 496         const struct snd_soc_dapm_route *custom_map;
 497         int num_routes;
 498         int ret;
 499
 500         card->dapm.idle_bias_off = true;
 501
 502         /* Start with RC clk for jack-detect (we disable MCLK below) */
 503         if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN)
 504                 snd_soc_component_update_bits(codec, RT5651_GLB_CLK,
 505                         RT5651_SCLK_SRC_MASK, RT5651_SCLK_SRC_RCCLK);
 506
 507         switch (BYT_RT5651_MAP(byt_rt5651_quirk)) {
 508         case BYT_RT5651_IN1_MAP:
 509                 custom_map = byt_rt5651_intmic_in1_map;
 510                 num_routes = ARRAY_SIZE(byt_rt5651_intmic_in1_map);
 511                 break;
 512         case BYT_RT5651_IN2_MAP:
 513                 custom_map = byt_rt5651_intmic_in2_map;
 514                 num_routes = ARRAY_SIZE(byt_rt5651_intmic_in2_map);
 515                 break;
 516         case BYT_RT5651_IN1_IN2_MAP:
 517                 custom_map = byt_rt5651_intmic_in1_in2_map;
 518                 num_routes = ARRAY_SIZE(byt_rt5651_intmic_in1_in2_map);
 519                 break;
 520         default:
 521                 custom_map = byt_rt5651_intmic_dmic_map;
 522                 num_routes = ARRAY_SIZE(byt_rt5651_intmic_dmic_map);
 523         }
 524         ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
 525         if (ret)
 526                 return ret;
 527
 528         if (byt_rt5651_quirk & BYT_RT5651_SSP2_AIF2) {
 529                 ret = snd_soc_dapm_add_routes(&card->dapm,
 530                                         byt_rt5651_ssp2_aif2_map,
 531                                         ARRAY_SIZE(byt_rt5651_ssp2_aif2_map));
 532         } else if (byt_rt5651_quirk & BYT_RT5651_SSP0_AIF1) {
 533                 ret = snd_soc_dapm_add_routes(&card->dapm,
 534                                         byt_rt5651_ssp0_aif1_map,
 535                                         ARRAY_SIZE(byt_rt5651_ssp0_aif1_map));
 536         } else if (byt_rt5651_quirk & BYT_RT5651_SSP0_AIF2) {
 537                 ret = snd_soc_dapm_add_routes(&card->dapm,
 538                                         byt_rt5651_ssp0_aif2_map,
 539                                         ARRAY_SIZE(byt_rt5651_ssp0_aif2_map));
 540         } else {
 541                 ret = snd_soc_dapm_add_routes(&card->dapm,
 542                                         byt_rt5651_ssp2_aif1_map,
 543                                         ARRAY_SIZE(byt_rt5651_ssp2_aif1_map));
 544         }
 545         if (ret)
 546                 return ret;
 547
 548         ret = snd_soc_add_card_controls(card, byt_rt5651_controls,
 549                                         ARRAY_SIZE(byt_rt5651_controls));
 550         if (ret) {
 551                 dev_err(card->dev, "unable to add card controls\n");
 552                 return ret;
 553         }
 554         snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
 555         snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
 556
 557         if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN) {
 558                 /*
 559                  * The firmware might enable the clock at
 560                  * boot (this information may or may not
 561                  * be reflected in the enable clock register).
 562                  * To change the rate we must disable the clock
 563                  * first to cover these cases. Due to common
 564                  * clock framework restrictions that do not allow
 565                  * to disable a clock that has not been enabled,
 566                  * we need to enable the clock first.
 567                  */
 568                 ret = clk_prepare_enable(priv->mclk);
 569                 if (!ret)
 570                         clk_disable_unprepare(priv->mclk);
 571
 572                 if (byt_rt5651_quirk & BYT_RT5651_MCLK_25MHZ)
 573                         ret = clk_set_rate(priv->mclk, 25000000);
 574                 else
 575                         ret = clk_set_rate(priv->mclk, 19200000);
 576
 577                 if (ret)
 578                         dev_err(card->dev, "unable to set MCLK rate\n");
 579         }
 580
 581         if (BYT_RT5651_JDSRC(byt_rt5651_quirk)) {
 582                 ret = snd_soc_card_jack_new(runtime->card, "Headset",
 583                                     SND_JACK_HEADSET | SND_JACK_BTN_0,
 584                                     &priv->jack, bytcr_jack_pins,
 585                                     ARRAY_SIZE(bytcr_jack_pins));
 586                 if (ret) {
 587                         dev_err(runtime->dev, "jack creation failed %d\n", ret);
 588                         return ret;
 589                 }
 590
 591                 snd_jack_set_key(priv->jack.jack, SND_JACK_BTN_0,
 592                                  KEY_PLAYPAUSE);
 593
 594                 ret = snd_soc_component_set_jack(codec, &priv->jack, NULL);
 595                 if (ret)
 596                         return ret;
 597         }
 598
 599         return 0;
 600 }
 601
 602 static const struct snd_soc_pcm_stream byt_rt5651_dai_params = {
 603         .formats = SNDRV_PCM_FMTBIT_S24_LE,
 604         .rate_min = 48000,
 605         .rate_max = 48000,
 606         .channels_min = 2,
 607         .channels_max = 2,
 608 };
 609
 610 static int byt_rt5651_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 611                             struct snd_pcm_hw_params *params)
 612 {
 613         struct snd_interval *rate = hw_param_interval(params,
 614                         SNDRV_PCM_HW_PARAM_RATE);
 615         struct snd_interval *channels = hw_param_interval(params,
 616                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
 617         int ret, bits;
 618
 619         /* The DSP will covert the FE rate to 48k, stereo */
 620         rate->min = rate->max = 48000;
 621         channels->min = channels->max = 2;
 622
 623         if ((byt_rt5651_quirk & BYT_RT5651_SSP0_AIF1) ||
 624             (byt_rt5651_quirk & BYT_RT5651_SSP0_AIF2)) {
 625                 /* set SSP0 to 16-bit */
 626                 params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 627                 bits = 16;
 628         } else {
 629                 /* set SSP2 to 24-bit */
 630                 params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
 631                 bits = 24;
 632         }
 633
 634         /*
 635          * Default mode for SSP configuration is TDM 4 slot, override config
 636          * with explicit setting to I2S 2ch. The word length is set with
 637          * dai_set_tdm_slot() since there is no other API exposed
 638          */
 639         ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
 640                                   SND_SOC_DAIFMT_I2S     |
 641                                   SND_SOC_DAIFMT_NB_NF   |
 642                                   SND_SOC_DAIFMT_CBS_CFS
 643                                   );
 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, bits);
 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 const unsigned int rates_48000[] = {
 660         48000,
 661 };
 662
 663 static const struct snd_pcm_hw_constraint_list constraints_48000 = {
 664         .count = ARRAY_SIZE(rates_48000),
 665         .list  = rates_48000,
 666 };
 667
 668 static int byt_rt5651_aif1_startup(struct snd_pcm_substream *substream)
 669 {
 670         return snd_pcm_hw_constraint_list(substream->runtime, 0,
 671                         SNDRV_PCM_HW_PARAM_RATE,
 672                         &constraints_48000);
 673 }
 674
 675 static const struct snd_soc_ops byt_rt5651_aif1_ops = {
 676         .startup = byt_rt5651_aif1_startup,
 677 };
 678
 679 static const struct snd_soc_ops byt_rt5651_be_ssp2_ops = {
 680         .hw_params = byt_rt5651_aif1_hw_params,
 681 };
 682
 683 static struct snd_soc_dai_link byt_rt5651_dais[] = {
 684         [MERR_DPCM_AUDIO] = {
 685                 .name = "Audio Port",
 686                 .stream_name = "Audio",
 687                 .cpu_dai_name = "media-cpu-dai",
 688                 .codec_dai_name = "snd-soc-dummy-dai",
 689                 .codec_name = "snd-soc-dummy",
 690                 .platform_name = "sst-mfld-platform",
 691                 .nonatomic = true,
 692                 .dynamic = 1,
 693                 .dpcm_playback = 1,
 694                 .dpcm_capture = 1,
 695                 .ops = &byt_rt5651_aif1_ops,
 696         },
 697         [MERR_DPCM_DEEP_BUFFER] = {
 698                 .name = "Deep-Buffer Audio Port",
 699                 .stream_name = "Deep-Buffer Audio",
 700                 .cpu_dai_name = "deepbuffer-cpu-dai",
 701                 .codec_dai_name = "snd-soc-dummy-dai",
 702                 .codec_name = "snd-soc-dummy",
 703                 .platform_name = "sst-mfld-platform",
 704                 .nonatomic = true,
 705                 .dynamic = 1,
 706                 .dpcm_playback = 1,
 707                 .ops = &byt_rt5651_aif1_ops,
 708         },
 709         /* CODEC<->CODEC link */
 710         /* back ends */
 711         {
 712                 .name = "SSP2-Codec",
 713                 .id = 0,
 714                 .cpu_dai_name = "ssp2-port",
 715                 .platform_name = "sst-mfld-platform",
 716                 .no_pcm = 1,
 717                 .codec_dai_name = "rt5651-aif1",
 718                 .codec_name = "i2c-10EC5651:00",
 719                 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 720                                                 | SND_SOC_DAIFMT_CBS_CFS,
 721                 .be_hw_params_fixup = byt_rt5651_codec_fixup,
 722                 .ignore_suspend = 1,
 723                 .nonatomic = true,
 724                 .dpcm_playback = 1,
 725                 .dpcm_capture = 1,
 726                 .init = byt_rt5651_init,
 727                 .ops = &byt_rt5651_be_ssp2_ops,
 728         },
 729 };
 730
 731 /* SoC card */
 732 static char byt_rt5651_codec_name[SND_ACPI_I2C_ID_LEN];
 733 static char byt_rt5651_codec_aif_name[12]; /*  = "rt5651-aif[1|2]" */
 734 static char byt_rt5651_cpu_dai_name[10]; /*  = "ssp[0|2]-port" */
 735 static char byt_rt5651_long_name[50]; /* = "bytcr-rt5651-*-spk-*-mic[-swapped-hp]" */
 736
 737 static int byt_rt5651_suspend(struct snd_soc_card *card)
 738 {
 739         struct snd_soc_component *component;
 740
 741         if (!BYT_RT5651_JDSRC(byt_rt5651_quirk))
 742                 return 0;
 743
 744         for_each_card_components(card, component) {
 745                 if (!strcmp(component->name, byt_rt5651_codec_name)) {
 746                         dev_dbg(component->dev, "disabling jack detect before suspend\n");
 747                         snd_soc_component_set_jack(component, NULL, NULL);
 748                         break;
 749                 }
 750         }
 751
 752         return 0;
 753 }
 754
 755 static int byt_rt5651_resume(struct snd_soc_card *card)
 756 {
 757         struct byt_rt5651_private *priv = snd_soc_card_get_drvdata(card);
 758         struct snd_soc_component *component;
 759
 760         if (!BYT_RT5651_JDSRC(byt_rt5651_quirk))
 761                 return 0;
 762
 763         for_each_card_components(card, component) {
 764                 if (!strcmp(component->name, byt_rt5651_codec_name)) {
 765                         dev_dbg(component->dev, "re-enabling jack detect after resume\n");
 766                         snd_soc_component_set_jack(component, &priv->jack, NULL);
 767                         break;
 768                 }
 769         }
 770
 771         return 0;
 772 }
 773
 774 static struct snd_soc_card byt_rt5651_card = {
 775         .name = "bytcr-rt5651",
 776         .owner = THIS_MODULE,
 777         .dai_link = byt_rt5651_dais,
 778         .num_links = ARRAY_SIZE(byt_rt5651_dais),
 779         .dapm_widgets = byt_rt5651_widgets,
 780         .num_dapm_widgets = ARRAY_SIZE(byt_rt5651_widgets),
 781         .dapm_routes = byt_rt5651_audio_map,
 782         .num_dapm_routes = ARRAY_SIZE(byt_rt5651_audio_map),
 783         .fully_routed = true,
 784         .suspend_pre = byt_rt5651_suspend,
 785         .resume_post = byt_rt5651_resume,
 786 };
 787
 788 static const struct x86_cpu_id baytrail_cpu_ids[] = {
 789         { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_SILVERMONT }, /* Valleyview */
 790         {}
 791 };
 792
 793 static const struct x86_cpu_id cherrytrail_cpu_ids[] = {
 794         { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_AIRMONT },     /* Braswell */
 795         {}
 796 };
 797
 798 static const struct acpi_gpio_params first_gpio = { 0, 0, false };
 799 static const struct acpi_gpio_params second_gpio = { 1, 0, false };
 800
 801 static const struct acpi_gpio_mapping byt_rt5651_amp_en_first[] = {
 802         { "ext-amp-enable-gpios", &first_gpio, 1 },
 803         { },
 804 };
 805
 806 static const struct acpi_gpio_mapping byt_rt5651_amp_en_second[] = {
 807         { "ext-amp-enable-gpios", &second_gpio, 1 },
 808         { },
 809 };
 810
 811 /*
 812  * Some boards have I2cSerialBusV2, GpioIo, GpioInt as ACPI resources, other
 813  * boards may  have I2cSerialBusV2, GpioInt, GpioIo instead. We want the
 814  * GpioIo one for the ext-amp-enable-gpio and both count for the index in
 815  * acpi_gpio_params index.  So we have 2 different mappings and the code
 816  * below figures out which one to use.
 817  */
 818 struct byt_rt5651_acpi_resource_data {
 819         int gpio_count;
 820         int gpio_int_idx;
 821 };
 822
 823 static int snd_byt_rt5651_acpi_resource(struct acpi_resource *ares, void *arg)
 824 {
 825         struct byt_rt5651_acpi_resource_data *data = arg;
 826
 827         if (ares->type != ACPI_RESOURCE_TYPE_GPIO)
 828                 return 0;
 829
 830         if (ares->data.gpio.connection_type == ACPI_RESOURCE_GPIO_TYPE_INT)
 831                 data->gpio_int_idx = data->gpio_count;
 832
 833         data->gpio_count++;
 834         return 0;
 835 }
 836
 837 static void snd_byt_rt5651_mc_add_amp_en_gpio_mapping(struct device *codec)
 838 {
 839         struct byt_rt5651_acpi_resource_data data = { 0, -1 };
 840         LIST_HEAD(resources);
 841         int ret;
 842
 843         ret = acpi_dev_get_resources(ACPI_COMPANION(codec), &resources,
 844                                      snd_byt_rt5651_acpi_resource, &data);
 845         if (ret < 0) {
 846                 dev_warn(codec, "Failed to get ACPI resources, not adding external amplifier GPIO mapping\n");
 847                 return;
 848         }
 849
 850         /* All info we need is gathered during the walk */
 851         acpi_dev_free_resource_list(&resources);
 852
 853         switch (data.gpio_int_idx) {
 854         case 0:
 855                 devm_acpi_dev_add_driver_gpios(codec, byt_rt5651_amp_en_second);
 856                 break;
 857         case 1:
 858                 devm_acpi_dev_add_driver_gpios(codec, byt_rt5651_amp_en_first);
 859                 break;
 860         default:
 861                 dev_warn(codec, "Unknown GpioInt index %d, not adding external amplifier GPIO mapping\n",
 862                          data.gpio_int_idx);
 863         }
 864 }
 865
 866 struct acpi_chan_package {   /* ACPICA seems to require 64 bit integers */
 867         u64 aif_value;       /* 1: AIF1, 2: AIF2 */
 868         u64 mclock_value;    /* usually 25MHz (0x17d7940), ignored */
 869 };
 870
 871 static int snd_byt_rt5651_mc_probe(struct platform_device *pdev)
 872 {
 873         const char * const mic_name[] = { "dmic", "in1", "in2", "in12" };
 874         struct byt_rt5651_private *priv;
 875         struct snd_soc_acpi_mach *mach;
 876         struct device *codec_dev;
 877         const char *i2c_name = NULL;
 878         const char *hp_swapped;
 879         bool is_bytcr = false;
 880         int ret_val = 0;
 881         int dai_index = 0;
 882         int i;
 883
 884         priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 885         if (!priv)
 886                 return -ENOMEM;
 887
 888         /* register the soc card */
 889         byt_rt5651_card.dev = &pdev->dev;
 890
 891         mach = byt_rt5651_card.dev->platform_data;
 892         snd_soc_card_set_drvdata(&byt_rt5651_card, priv);
 893
 894         /* fix index of codec dai */
 895         for (i = 0; i < ARRAY_SIZE(byt_rt5651_dais); i++) {
 896                 if (!strcmp(byt_rt5651_dais[i].codec_name, "i2c-10EC5651:00")) {
 897                         dai_index = i;
 898                         break;
 899                 }
 900         }
 901
 902         /* fixup codec name based on HID */
 903         i2c_name = acpi_dev_get_first_match_name(mach->id, NULL, -1);
 904         if (!i2c_name) {
 905                 dev_err(&pdev->dev, "Error cannot find '%s' dev\n", mach->id);
 906                 return -ENODEV;
 907         }
 908         snprintf(byt_rt5651_codec_name, sizeof(byt_rt5651_codec_name),
 909                 "%s%s", "i2c-", i2c_name);
 910         byt_rt5651_dais[dai_index].codec_name = byt_rt5651_codec_name;
 911
 912         codec_dev = bus_find_device_by_name(&i2c_bus_type, NULL,
 913                                             byt_rt5651_codec_name);
 914         if (!codec_dev)
 915                 return -EPROBE_DEFER;
 916
 917         /*
 918          * swap SSP0 if bytcr is detected
 919          * (will be overridden if DMI quirk is detected)
 920          */
 921         if (x86_match_cpu(baytrail_cpu_ids)) {
 922                 if (mach->mach_params.acpi_ipc_irq_index == 0)
 923                         is_bytcr = true;
 924         }
 925
 926         if (is_bytcr) {
 927                 /*
 928                  * Baytrail CR platforms may have CHAN package in BIOS, try
 929                  * to find relevant routing quirk based as done on Windows
 930                  * platforms. We have to read the information directly from the
 931                  * BIOS, at this stage the card is not created and the links
 932                  * with the codec driver/pdata are non-existent
 933                  */
 934
 935                 struct acpi_chan_package chan_package;
 936
 937                 /* format specified: 2 64-bit integers */
 938                 struct acpi_buffer format = {sizeof("NN"), "NN"};
 939                 struct acpi_buffer state = {0, NULL};
 940                 struct snd_soc_acpi_package_context pkg_ctx;
 941                 bool pkg_found = false;
 942
 943                 state.length = sizeof(chan_package);
 944                 state.pointer = &chan_package;
 945
 946                 pkg_ctx.name = "CHAN";
 947                 pkg_ctx.length = 2;
 948                 pkg_ctx.format = &format;
 949                 pkg_ctx.state = &state;
 950                 pkg_ctx.data_valid = false;
 951
 952                 pkg_found = snd_soc_acpi_find_package_from_hid(mach->id,
 953                                                                &pkg_ctx);
 954                 if (pkg_found) {
 955                         if (chan_package.aif_value == 1) {
 956                                 dev_info(&pdev->dev, "BIOS Routing: AIF1 connected\n");
 957                                 byt_rt5651_quirk |= BYT_RT5651_SSP0_AIF1;
 958                         } else  if (chan_package.aif_value == 2) {
 959                                 dev_info(&pdev->dev, "BIOS Routing: AIF2 connected\n");
 960                                 byt_rt5651_quirk |= BYT_RT5651_SSP0_AIF2;
 961                         } else {
 962                                 dev_info(&pdev->dev, "BIOS Routing isn't valid, ignored\n");
 963                                 pkg_found = false;
 964                         }
 965                 }
 966
 967                 if (!pkg_found) {
 968                         /* no BIOS indications, assume SSP0-AIF2 connection */
 969                         byt_rt5651_quirk |= BYT_RT5651_SSP0_AIF2;
 970                 }
 971         }
 972
 973         /* check quirks before creating card */
 974         dmi_check_system(byt_rt5651_quirk_table);
 975
 976         /* Must be called before register_card, also see declaration comment. */
 977         ret_val = byt_rt5651_add_codec_device_props(codec_dev);
 978         if (ret_val) {
 979                 put_device(codec_dev);
 980                 return ret_val;
 981         }
 982
 983         /* Cherry Trail devices use an external amplifier enable gpio */
 984         if (x86_match_cpu(cherrytrail_cpu_ids)) {
 985                 snd_byt_rt5651_mc_add_amp_en_gpio_mapping(codec_dev);
 986                 priv->ext_amp_gpio = devm_fwnode_get_index_gpiod_from_child(
 987                                                 &pdev->dev, "ext-amp-enable", 0,
 988                                                 codec_dev->fwnode,
 989                                                 GPIOD_OUT_LOW, "speaker-amp");
 990                 if (IS_ERR(priv->ext_amp_gpio)) {
 991                         ret_val = PTR_ERR(priv->ext_amp_gpio);
 992                         switch (ret_val) {
 993                         case -ENOENT:
 994                                 priv->ext_amp_gpio = NULL;
 995                                 break;
 996                         default:
 997                                 dev_err(&pdev->dev, "Failed to get ext-amp-enable GPIO: %d\n",
 998                                         ret_val);
 999                                 /* fall through */
1000                         case -EPROBE_DEFER:
1001                                 put_device(codec_dev);
1002                                 return ret_val;
1003                         }
1004                 }
1005         }
1006
1007         put_device(codec_dev);
1008
1009         log_quirks(&pdev->dev);
1010
1011         if ((byt_rt5651_quirk & BYT_RT5651_SSP2_AIF2) ||
1012             (byt_rt5651_quirk & BYT_RT5651_SSP0_AIF2)) {
1013                 /* fixup codec aif name */
1014                 snprintf(byt_rt5651_codec_aif_name,
1015                         sizeof(byt_rt5651_codec_aif_name),
1016                         "%s", "rt5651-aif2");
1017
1018                 byt_rt5651_dais[dai_index].codec_dai_name =
1019                         byt_rt5651_codec_aif_name;
1020         }
1021
1022         if ((byt_rt5651_quirk & BYT_RT5651_SSP0_AIF1) ||
1023             (byt_rt5651_quirk & BYT_RT5651_SSP0_AIF2)) {
1024                 /* fixup cpu dai name name */
1025                 snprintf(byt_rt5651_cpu_dai_name,
1026                         sizeof(byt_rt5651_cpu_dai_name),
1027                         "%s", "ssp0-port");
1028
1029                 byt_rt5651_dais[dai_index].cpu_dai_name =
1030                         byt_rt5651_cpu_dai_name;
1031         }
1032
1033         if (byt_rt5651_quirk & BYT_RT5651_MCLK_EN) {
1034                 priv->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
1035                 if (IS_ERR(priv->mclk)) {
1036                         ret_val = PTR_ERR(priv->mclk);
1037                         dev_err(&pdev->dev,
1038                                 "Failed to get MCLK from pmc_plt_clk_3: %d\n",
1039                                 ret_val);
1040                         /*
1041                          * Fall back to bit clock usage for -ENOENT (clock not
1042                          * available likely due to missing dependencies), bail
1043                          * for all other errors, including -EPROBE_DEFER
1044                          */
1045                         if (ret_val != -ENOENT)
1046                                 return ret_val;
1047                         byt_rt5651_quirk &= ~BYT_RT5651_MCLK_EN;
1048                 }
1049         }
1050
1051         if (byt_rt5651_quirk & BYT_RT5651_HP_LR_SWAPPED)
1052                 hp_swapped = "-hp-swapped";
1053         else
1054                 hp_swapped = "";
1055
1056         snprintf(byt_rt5651_long_name, sizeof(byt_rt5651_long_name),
1057                  "bytcr-rt5651-%s-spk-%s-mic%s",
1058                  (byt_rt5651_quirk & BYT_RT5651_MONO_SPEAKER) ?
1059                         "mono" : "stereo",
1060                  mic_name[BYT_RT5651_MAP(byt_rt5651_quirk)], hp_swapped);
1061         byt_rt5651_card.long_name = byt_rt5651_long_name;
1062
1063         ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5651_card);
1064
1065         if (ret_val) {
1066                 dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
1067                         ret_val);
1068                 return ret_val;
1069         }
1070         platform_set_drvdata(pdev, &byt_rt5651_card);
1071         return ret_val;
1072 }
1073
1074 static struct platform_driver snd_byt_rt5651_mc_driver = {
1075         .driver = {
1076                 .name = "bytcr_rt5651",
1077         },
1078         .probe = snd_byt_rt5651_mc_probe,
1079 };
1080
1081 module_platform_driver(snd_byt_rt5651_mc_driver);
1082
1083 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver for RT5651");
1084 MODULE_AUTHOR("Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>");
1085 MODULE_LICENSE("GPL v2");
1086 MODULE_ALIAS("platform:bytcr_rt5651");