sound/soc/generic/simple-card-utils.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // simple-card-utils.c
   4 //
   5 // Copyright (c) 2016 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
   6
   7 #include <linux/clk.h>
   8 #include <linux/gpio.h>
   9 #include <linux/gpio/consumer.h>
  10 #include <linux/module.h>
  11 #include <linux/of.h>
  12 #include <linux/of_gpio.h>
  13 #include <linux/of_graph.h>
  14 #include <sound/jack.h>
  15 #include <sound/simple_card_utils.h>
  16
  17 void asoc_simple_convert_fixup(struct asoc_simple_data *data,
  18                                struct snd_pcm_hw_params *params)
  19 {
  20         struct snd_interval *rate = hw_param_interval(params,
  21                                                 SNDRV_PCM_HW_PARAM_RATE);
  22         struct snd_interval *channels = hw_param_interval(params,
  23                                                 SNDRV_PCM_HW_PARAM_CHANNELS);
  24
  25         if (data->convert_rate)
  26                 rate->min =
  27                 rate->max = data->convert_rate;
  28
  29         if (data->convert_channels)
  30                 channels->min =
  31                 channels->max = data->convert_channels;
  32 }
  33 EXPORT_SYMBOL_GPL(asoc_simple_convert_fixup);
  34
  35 void asoc_simple_parse_convert(struct device *dev,
  36                                struct device_node *np,
  37                                char *prefix,
  38                                struct asoc_simple_data *data)
  39 {
  40         char prop[128];
  41
  42         if (!prefix)
  43                 prefix = "";
  44
  45         /* sampling rate convert */
  46         snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-rate");
  47         of_property_read_u32(np, prop, &data->convert_rate);
  48
  49         /* channels transfer */
  50         snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels");
  51         of_property_read_u32(np, prop, &data->convert_channels);
  52 }
  53 EXPORT_SYMBOL_GPL(asoc_simple_parse_convert);
  54
  55 int asoc_simple_parse_daifmt(struct device *dev,
  56                              struct device_node *node,
  57                              struct device_node *codec,
  58                              char *prefix,
  59                              unsigned int *retfmt)
  60 {
  61         struct device_node *bitclkmaster = NULL;
  62         struct device_node *framemaster = NULL;
  63         unsigned int daifmt;
  64
  65         daifmt = snd_soc_of_parse_daifmt(node, prefix,
  66                                          &bitclkmaster, &framemaster);
  67         daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
  68
  69         if (!bitclkmaster && !framemaster) {
  70                 /*
  71                  * No dai-link level and master setting was not found from
  72                  * sound node level, revert back to legacy DT parsing and
  73                  * take the settings from codec node.
  74                  */
  75                 dev_dbg(dev, "Revert to legacy daifmt parsing\n");
  76
  77                 daifmt = snd_soc_of_parse_daifmt(codec, NULL, NULL, NULL) |
  78                         (daifmt & ~SND_SOC_DAIFMT_CLOCK_MASK);
  79         } else {
  80                 if (codec == bitclkmaster)
  81                         daifmt |= (codec == framemaster) ?
  82                                 SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS;
  83                 else
  84                         daifmt |= (codec == framemaster) ?
  85                                 SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS;
  86         }
  87
  88         of_node_put(bitclkmaster);
  89         of_node_put(framemaster);
  90
  91         *retfmt = daifmt;
  92
  93         return 0;
  94 }
  95 EXPORT_SYMBOL_GPL(asoc_simple_parse_daifmt);
  96
  97 int asoc_simple_set_dailink_name(struct device *dev,
  98                                  struct snd_soc_dai_link *dai_link,
  99                                  const char *fmt, ...)
 100 {
 101         va_list ap;
 102         char *name = NULL;
 103         int ret = -ENOMEM;
 104
 105         va_start(ap, fmt);
 106         name = devm_kvasprintf(dev, GFP_KERNEL, fmt, ap);
 107         va_end(ap);
 108
 109         if (name) {
 110                 ret = 0;
 111
 112                 dai_link->name          = name;
 113                 dai_link->stream_name   = name;
 114         }
 115
 116         return ret;
 117 }
 118 EXPORT_SYMBOL_GPL(asoc_simple_set_dailink_name);
 119
 120 int asoc_simple_parse_card_name(struct snd_soc_card *card,
 121                                 char *prefix)
 122 {
 123         int ret;
 124
 125         if (!prefix)
 126                 prefix = "";
 127
 128         /* Parse the card name from DT */
 129         ret = snd_soc_of_parse_card_name(card, "label");
 130         if (ret < 0 || !card->name) {
 131                 char prop[128];
 132
 133                 snprintf(prop, sizeof(prop), "%sname", prefix);
 134                 ret = snd_soc_of_parse_card_name(card, prop);
 135                 if (ret < 0)
 136                         return ret;
 137         }
 138
 139         if (!card->name && card->dai_link)
 140                 card->name = card->dai_link->name;
 141
 142         return 0;
 143 }
 144 EXPORT_SYMBOL_GPL(asoc_simple_parse_card_name);
 145
 146 static int asoc_simple_clk_enable(struct asoc_simple_dai *dai)
 147 {
 148         if (dai)
 149                 return clk_prepare_enable(dai->clk);
 150
 151         return 0;
 152 }
 153
 154 static void asoc_simple_clk_disable(struct asoc_simple_dai *dai)
 155 {
 156         if (dai)
 157                 clk_disable_unprepare(dai->clk);
 158 }
 159
 160 int asoc_simple_parse_clk(struct device *dev,
 161                           struct device_node *node,
 162                           struct asoc_simple_dai *simple_dai,
 163                           struct snd_soc_dai_link_component *dlc)
 164 {
 165         struct clk *clk;
 166         u32 val;
 167
 168         /*
 169          * Parse dai->sysclk come from "clocks = <&xxx>"
 170          * (if system has common clock)
 171          *  or "system-clock-frequency = <xxx>"
 172          *  or device's module clock.
 173          */
 174         clk = devm_get_clk_from_child(dev, node, NULL);
 175         if (!IS_ERR(clk)) {
 176                 simple_dai->sysclk = clk_get_rate(clk);
 177
 178                 simple_dai->clk = clk;
 179         } else if (!of_property_read_u32(node, "system-clock-frequency", &val)) {
 180                 simple_dai->sysclk = val;
 181         } else {
 182                 clk = devm_get_clk_from_child(dev, dlc->of_node, NULL);
 183                 if (!IS_ERR(clk))
 184                         simple_dai->sysclk = clk_get_rate(clk);
 185         }
 186
 187         if (of_property_read_bool(node, "system-clock-direction-out"))
 188                 simple_dai->clk_direction = SND_SOC_CLOCK_OUT;
 189
 190         return 0;
 191 }
 192 EXPORT_SYMBOL_GPL(asoc_simple_parse_clk);
 193
 194 int asoc_simple_startup(struct snd_pcm_substream *substream)
 195 {
 196         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 197         struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 198         struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
 199         int ret;
 200
 201         ret = asoc_simple_clk_enable(dai_props->cpu_dai);
 202         if (ret)
 203                 return ret;
 204
 205         ret = asoc_simple_clk_enable(dai_props->codec_dai);
 206         if (ret)
 207                 asoc_simple_clk_disable(dai_props->cpu_dai);
 208
 209         return ret;
 210 }
 211 EXPORT_SYMBOL_GPL(asoc_simple_startup);
 212
 213 void asoc_simple_shutdown(struct snd_pcm_substream *substream)
 214 {
 215         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 216         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 217         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 218         struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 219         struct simple_dai_props *dai_props =
 220                 simple_priv_to_props(priv, rtd->num);
 221
 222         if (dai_props->mclk_fs) {
 223                 snd_soc_dai_set_sysclk(codec_dai, 0, 0, SND_SOC_CLOCK_IN);
 224                 snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_OUT);
 225         }
 226
 227         asoc_simple_clk_disable(dai_props->cpu_dai);
 228
 229         asoc_simple_clk_disable(dai_props->codec_dai);
 230 }
 231 EXPORT_SYMBOL_GPL(asoc_simple_shutdown);
 232
 233 static int asoc_simple_set_clk_rate(struct asoc_simple_dai *simple_dai,
 234                                     unsigned long rate)
 235 {
 236         if (!simple_dai)
 237                 return 0;
 238
 239         if (!simple_dai->clk)
 240                 return 0;
 241
 242         if (clk_get_rate(simple_dai->clk) == rate)
 243                 return 0;
 244
 245         return clk_set_rate(simple_dai->clk, rate);
 246 }
 247
 248 int asoc_simple_hw_params(struct snd_pcm_substream *substream,
 249                           struct snd_pcm_hw_params *params)
 250 {
 251         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 252         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 253         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 254         struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 255         struct simple_dai_props *dai_props =
 256                 simple_priv_to_props(priv, rtd->num);
 257         unsigned int mclk, mclk_fs = 0;
 258         int ret = 0;
 259
 260         if (dai_props->mclk_fs)
 261                 mclk_fs = dai_props->mclk_fs;
 262
 263         if (mclk_fs) {
 264                 mclk = params_rate(params) * mclk_fs;
 265
 266                 ret = asoc_simple_set_clk_rate(dai_props->codec_dai, mclk);
 267                 if (ret < 0)
 268                         return ret;
 269
 270                 ret = asoc_simple_set_clk_rate(dai_props->cpu_dai, mclk);
 271                 if (ret < 0)
 272                         return ret;
 273
 274                 ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
 275                                              SND_SOC_CLOCK_IN);
 276                 if (ret && ret != -ENOTSUPP)
 277                         goto err;
 278
 279                 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
 280                                              SND_SOC_CLOCK_OUT);
 281                 if (ret && ret != -ENOTSUPP)
 282                         goto err;
 283         }
 284         return 0;
 285 err:
 286         return ret;
 287 }
 288 EXPORT_SYMBOL_GPL(asoc_simple_hw_params);
 289
 290 int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 291                                    struct snd_pcm_hw_params *params)
 292 {
 293         struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 294         struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
 295
 296         asoc_simple_convert_fixup(&dai_props->adata, params);
 297
 298         return 0;
 299 }
 300 EXPORT_SYMBOL_GPL(asoc_simple_be_hw_params_fixup);
 301
 302 static int asoc_simple_init_dai(struct snd_soc_dai *dai,
 303                                      struct asoc_simple_dai *simple_dai)
 304 {
 305         int ret;
 306
 307         if (!simple_dai)
 308                 return 0;
 309
 310         if (simple_dai->sysclk) {
 311                 ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk,
 312                                              simple_dai->clk_direction);
 313                 if (ret && ret != -ENOTSUPP) {
 314                         dev_err(dai->dev, "simple-card: set_sysclk error\n");
 315                         return ret;
 316                 }
 317         }
 318
 319         if (simple_dai->slots) {
 320                 ret = snd_soc_dai_set_tdm_slot(dai,
 321                                                simple_dai->tx_slot_mask,
 322                                                simple_dai->rx_slot_mask,
 323                                                simple_dai->slots,
 324                                                simple_dai->slot_width);
 325                 if (ret && ret != -ENOTSUPP) {
 326                         dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
 327                         return ret;
 328                 }
 329         }
 330
 331         return 0;
 332 }
 333
 334 static int asoc_simple_init_dai_link_params(struct snd_soc_pcm_runtime *rtd,
 335                                             struct simple_dai_props *dai_props)
 336 {
 337         struct snd_soc_dai_link *dai_link = rtd->dai_link;
 338         struct snd_soc_component *component;
 339         struct snd_soc_pcm_stream *params;
 340         struct snd_pcm_hardware hw;
 341         int i, ret, stream;
 342
 343         /* Only codecs should have non_legacy_dai_naming set. */
 344         for_each_rtd_components(rtd, i, component) {
 345                 if (!component->driver->non_legacy_dai_naming)
 346                         return 0;
 347         }
 348
 349         /* Assumes the capabilities are the same for all supported streams */
 350         for_each_pcm_streams(stream) {
 351                 ret = snd_soc_runtime_calc_hw(rtd, &hw, stream);
 352                 if (ret == 0)
 353                         break;
 354         }
 355
 356         if (ret < 0) {
 357                 dev_err(rtd->dev, "simple-card: no valid dai_link params\n");
 358                 return ret;
 359         }
 360
 361         params = devm_kzalloc(rtd->dev, sizeof(*params), GFP_KERNEL);
 362         if (!params)
 363                 return -ENOMEM;
 364
 365         params->formats = hw.formats;
 366         params->rates = hw.rates;
 367         params->rate_min = hw.rate_min;
 368         params->rate_max = hw.rate_max;
 369         params->channels_min = hw.channels_min;
 370         params->channels_max = hw.channels_max;
 371
 372         dai_link->params = params;
 373         dai_link->num_params = 1;
 374
 375         return 0;
 376 }
 377
 378 int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd)
 379 {
 380         struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 381         struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
 382         int ret;
 383
 384         ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, 0),
 385                                    dai_props->codec_dai);
 386         if (ret < 0)
 387                 return ret;
 388
 389         ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, 0),
 390                                    dai_props->cpu_dai);
 391         if (ret < 0)
 392                 return ret;
 393
 394         ret = asoc_simple_init_dai_link_params(rtd, dai_props);
 395         if (ret < 0)
 396                 return ret;
 397
 398         return 0;
 399 }
 400 EXPORT_SYMBOL_GPL(asoc_simple_dai_init);
 401
 402 void asoc_simple_canonicalize_platform(struct snd_soc_dai_link *dai_link)
 403 {
 404         /* Assumes platform == cpu */
 405         if (!dai_link->platforms->of_node)
 406                 dai_link->platforms->of_node = dai_link->cpus->of_node;
 407
 408         /*
 409          * DPCM BE can be no platform.
 410          * Alloced memory will be waste, but not leak.
 411          */
 412         if (!dai_link->platforms->of_node)
 413                 dai_link->num_platforms = 0;
 414 }
 415 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform);
 416
 417 void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link *dai_link,
 418                                   int is_single_links)
 419 {
 420         /*
 421          * In soc_bind_dai_link() will check cpu name after
 422          * of_node matching if dai_link has cpu_dai_name.
 423          * but, it will never match if name was created by
 424          * fmt_single_name() remove cpu_dai_name if cpu_args
 425          * was 0. See:
 426          *      fmt_single_name()
 427          *      fmt_multiple_name()
 428          */
 429         if (is_single_links)
 430                 dai_link->cpus->dai_name = NULL;
 431 }
 432 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu);
 433
 434 int asoc_simple_clean_reference(struct snd_soc_card *card)
 435 {
 436         struct snd_soc_dai_link *dai_link;
 437         int i;
 438
 439         for_each_card_prelinks(card, i, dai_link) {
 440                 of_node_put(dai_link->cpus->of_node);
 441                 of_node_put(dai_link->codecs->of_node);
 442         }
 443         return 0;
 444 }
 445 EXPORT_SYMBOL_GPL(asoc_simple_clean_reference);
 446
 447 int asoc_simple_parse_routing(struct snd_soc_card *card,
 448                               char *prefix)
 449 {
 450         struct device_node *node = card->dev->of_node;
 451         char prop[128];
 452
 453         if (!prefix)
 454                 prefix = "";
 455
 456         snprintf(prop, sizeof(prop), "%s%s", prefix, "routing");
 457
 458         if (!of_property_read_bool(node, prop))
 459                 return 0;
 460
 461         return snd_soc_of_parse_audio_routing(card, prop);
 462 }
 463 EXPORT_SYMBOL_GPL(asoc_simple_parse_routing);
 464
 465 int asoc_simple_parse_widgets(struct snd_soc_card *card,
 466                               char *prefix)
 467 {
 468         struct device_node *node = card->dev->of_node;
 469         char prop[128];
 470
 471         if (!prefix)
 472                 prefix = "";
 473
 474         snprintf(prop, sizeof(prop), "%s%s", prefix, "widgets");
 475
 476         if (of_property_read_bool(node, prop))
 477                 return snd_soc_of_parse_audio_simple_widgets(card, prop);
 478
 479         /* no widgets is not error */
 480         return 0;
 481 }
 482 EXPORT_SYMBOL_GPL(asoc_simple_parse_widgets);
 483
 484 int asoc_simple_parse_pin_switches(struct snd_soc_card *card,
 485                                    char *prefix)
 486 {
 487         const unsigned int nb_controls_max = 16;
 488         const char **strings, *control_name;
 489         struct snd_kcontrol_new *controls;
 490         struct device *dev = card->dev;
 491         unsigned int i, nb_controls;
 492         char prop[128];
 493         int ret;
 494
 495         if (!prefix)
 496                 prefix = "";
 497
 498         snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches");
 499
 500         if (!of_property_read_bool(dev->of_node, prop))
 501                 return 0;
 502
 503         strings = devm_kcalloc(dev, nb_controls_max,
 504                                sizeof(*strings), GFP_KERNEL);
 505         if (!strings)
 506                 return -ENOMEM;
 507
 508         ret = of_property_read_string_array(dev->of_node, prop,
 509                                             strings, nb_controls_max);
 510         if (ret < 0)
 511                 return ret;
 512
 513         nb_controls = (unsigned int)ret;
 514
 515         controls = devm_kcalloc(dev, nb_controls,
 516                                 sizeof(*controls), GFP_KERNEL);
 517         if (!controls)
 518                 return -ENOMEM;
 519
 520         for (i = 0; i < nb_controls; i++) {
 521                 control_name = devm_kasprintf(dev, GFP_KERNEL,
 522                                               "%s Switch", strings[i]);
 523                 if (!control_name)
 524                         return -ENOMEM;
 525
 526                 controls[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 527                 controls[i].name = control_name;
 528                 controls[i].info = snd_soc_dapm_info_pin_switch;
 529                 controls[i].get = snd_soc_dapm_get_pin_switch;
 530                 controls[i].put = snd_soc_dapm_put_pin_switch;
 531                 controls[i].private_value = (unsigned long)strings[i];
 532         }
 533
 534         card->controls = controls;
 535         card->num_controls = nb_controls;
 536
 537         return 0;
 538 }
 539 EXPORT_SYMBOL_GPL(asoc_simple_parse_pin_switches);
 540
 541 int asoc_simple_init_jack(struct snd_soc_card *card,
 542                           struct asoc_simple_jack *sjack,
 543                           int is_hp, char *prefix,
 544                           char *pin)
 545 {
 546         struct device *dev = card->dev;
 547         enum of_gpio_flags flags;
 548         char prop[128];
 549         char *pin_name;
 550         char *gpio_name;
 551         int mask;
 552         int det;
 553
 554         if (!prefix)
 555                 prefix = "";
 556
 557         sjack->gpio.gpio = -ENOENT;
 558
 559         if (is_hp) {
 560                 snprintf(prop, sizeof(prop), "%shp-det-gpio", prefix);
 561                 pin_name        = pin ? pin : "Headphones";
 562                 gpio_name       = "Headphone detection";
 563                 mask            = SND_JACK_HEADPHONE;
 564         } else {
 565                 snprintf(prop, sizeof(prop), "%smic-det-gpio", prefix);
 566                 pin_name        = pin ? pin : "Mic Jack";
 567                 gpio_name       = "Mic detection";
 568                 mask            = SND_JACK_MICROPHONE;
 569         }
 570
 571         det = of_get_named_gpio_flags(dev->of_node, prop, 0, &flags);
 572         if (det == -EPROBE_DEFER)
 573                 return -EPROBE_DEFER;
 574
 575         if (gpio_is_valid(det)) {
 576                 sjack->pin.pin          = pin_name;
 577                 sjack->pin.mask         = mask;
 578
 579                 sjack->gpio.name        = gpio_name;
 580                 sjack->gpio.report      = mask;
 581                 sjack->gpio.gpio        = det;
 582                 sjack->gpio.invert      = !!(flags & OF_GPIO_ACTIVE_LOW);
 583                 sjack->gpio.debounce_time = 150;
 584
 585                 snd_soc_card_jack_new(card, pin_name, mask,
 586                                       &sjack->jack,
 587                                       &sjack->pin, 1);
 588
 589                 snd_soc_jack_add_gpios(&sjack->jack, 1,
 590                                        &sjack->gpio);
 591         }
 592
 593         return 0;
 594 }
 595 EXPORT_SYMBOL_GPL(asoc_simple_init_jack);
 596
 597 int asoc_simple_init_priv(struct asoc_simple_priv *priv,
 598                           struct link_info *li)
 599 {
 600         struct snd_soc_card *card = simple_priv_to_card(priv);
 601         struct device *dev = simple_priv_to_dev(priv);
 602         struct snd_soc_dai_link *dai_link;
 603         struct simple_dai_props *dai_props;
 604         struct asoc_simple_dai *dais;
 605         struct snd_soc_codec_conf *cconf = NULL;
 606         int i;
 607
 608         dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL);
 609         dai_link  = devm_kcalloc(dev, li->link, sizeof(*dai_link),  GFP_KERNEL);
 610         dais      = devm_kcalloc(dev, li->dais, sizeof(*dais),      GFP_KERNEL);
 611         if (!dai_props || !dai_link || !dais)
 612                 return -ENOMEM;
 613
 614         if (li->conf) {
 615                 cconf = devm_kcalloc(dev, li->conf, sizeof(*cconf), GFP_KERNEL);
 616                 if (!cconf)
 617                         return -ENOMEM;
 618         }
 619
 620         /*
 621          * Use snd_soc_dai_link_component instead of legacy style
 622          * It is codec only. but cpu/platform will be supported in the future.
 623          * see
 624          *      soc-core.c :: snd_soc_init_multicodec()
 625          *
 626          * "platform" might be removed
 627          * see
 628          *      simple-card-utils.c :: asoc_simple_canonicalize_platform()
 629          */
 630         for (i = 0; i < li->link; i++) {
 631                 dai_link[i].cpus                = &dai_props[i].cpus;
 632                 dai_link[i].num_cpus            = 1;
 633                 dai_link[i].codecs              = &dai_props[i].codecs;
 634                 dai_link[i].num_codecs          = 1;
 635                 dai_link[i].platforms           = &dai_props[i].platforms;
 636                 dai_link[i].num_platforms       = 1;
 637         }
 638
 639         priv->dai_props         = dai_props;
 640         priv->dai_link          = dai_link;
 641         priv->dais              = dais;
 642         priv->codec_conf        = cconf;
 643
 644         card->dai_link          = priv->dai_link;
 645         card->num_links         = li->link;
 646         card->codec_conf        = cconf;
 647         card->num_configs       = li->conf;
 648
 649         return 0;
 650 }
 651 EXPORT_SYMBOL_GPL(asoc_simple_init_priv);
 652
 653 /* Module information */
 654 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
 655 MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");
 656 MODULE_LICENSE("GPL v2");