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;
 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 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform);
 409
 410 void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link *dai_link,
 411                                   int is_single_links)
 412 {
 413         /*
 414          * In soc_bind_dai_link() will check cpu name after
 415          * of_node matching if dai_link has cpu_dai_name.
 416          * but, it will never match if name was created by
 417          * fmt_single_name() remove cpu_dai_name if cpu_args
 418          * was 0. See:
 419          *      fmt_single_name()
 420          *      fmt_multiple_name()
 421          */
 422         if (is_single_links)
 423                 dai_link->cpus->dai_name = NULL;
 424 }
 425 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu);
 426
 427 int asoc_simple_clean_reference(struct snd_soc_card *card)
 428 {
 429         struct snd_soc_dai_link *dai_link;
 430         int i;
 431
 432         for_each_card_prelinks(card, i, dai_link) {
 433                 of_node_put(dai_link->cpus->of_node);
 434                 of_node_put(dai_link->codecs->of_node);
 435         }
 436         return 0;
 437 }
 438 EXPORT_SYMBOL_GPL(asoc_simple_clean_reference);
 439
 440 int asoc_simple_parse_routing(struct snd_soc_card *card,
 441                               char *prefix)
 442 {
 443         struct device_node *node = card->dev->of_node;
 444         char prop[128];
 445
 446         if (!prefix)
 447                 prefix = "";
 448
 449         snprintf(prop, sizeof(prop), "%s%s", prefix, "routing");
 450
 451         if (!of_property_read_bool(node, prop))
 452                 return 0;
 453
 454         return snd_soc_of_parse_audio_routing(card, prop);
 455 }
 456 EXPORT_SYMBOL_GPL(asoc_simple_parse_routing);
 457
 458 int asoc_simple_parse_widgets(struct snd_soc_card *card,
 459                               char *prefix)
 460 {
 461         struct device_node *node = card->dev->of_node;
 462         char prop[128];
 463
 464         if (!prefix)
 465                 prefix = "";
 466
 467         snprintf(prop, sizeof(prop), "%s%s", prefix, "widgets");
 468
 469         if (of_property_read_bool(node, prop))
 470                 return snd_soc_of_parse_audio_simple_widgets(card, prop);
 471
 472         /* no widgets is not error */
 473         return 0;
 474 }
 475 EXPORT_SYMBOL_GPL(asoc_simple_parse_widgets);
 476
 477 int asoc_simple_parse_pin_switches(struct snd_soc_card *card,
 478                                    char *prefix)
 479 {
 480         const unsigned int nb_controls_max = 16;
 481         const char **strings, *control_name;
 482         struct snd_kcontrol_new *controls;
 483         struct device *dev = card->dev;
 484         unsigned int i, nb_controls;
 485         char prop[128];
 486         int ret;
 487
 488         if (!prefix)
 489                 prefix = "";
 490
 491         snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches");
 492
 493         if (!of_property_read_bool(dev->of_node, prop))
 494                 return 0;
 495
 496         strings = devm_kcalloc(dev, nb_controls_max,
 497                                sizeof(*strings), GFP_KERNEL);
 498         if (!strings)
 499                 return -ENOMEM;
 500
 501         ret = of_property_read_string_array(dev->of_node, prop,
 502                                             strings, nb_controls_max);
 503         if (ret < 0)
 504                 return ret;
 505
 506         nb_controls = (unsigned int)ret;
 507
 508         controls = devm_kcalloc(dev, nb_controls,
 509                                 sizeof(*controls), GFP_KERNEL);
 510         if (!controls)
 511                 return -ENOMEM;
 512
 513         for (i = 0; i < nb_controls; i++) {
 514                 control_name = devm_kasprintf(dev, GFP_KERNEL,
 515                                               "%s Switch", strings[i]);
 516                 if (!control_name)
 517                         return -ENOMEM;
 518
 519                 controls[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 520                 controls[i].name = control_name;
 521                 controls[i].info = snd_soc_dapm_info_pin_switch;
 522                 controls[i].get = snd_soc_dapm_get_pin_switch;
 523                 controls[i].put = snd_soc_dapm_put_pin_switch;
 524                 controls[i].private_value = (unsigned long)strings[i];
 525         }
 526
 527         card->controls = controls;
 528         card->num_controls = nb_controls;
 529
 530         return 0;
 531 }
 532 EXPORT_SYMBOL_GPL(asoc_simple_parse_pin_switches);
 533
 534 int asoc_simple_init_jack(struct snd_soc_card *card,
 535                           struct asoc_simple_jack *sjack,
 536                           int is_hp, char *prefix,
 537                           char *pin)
 538 {
 539         struct device *dev = card->dev;
 540         enum of_gpio_flags flags;
 541         char prop[128];
 542         char *pin_name;
 543         char *gpio_name;
 544         int mask;
 545         int det;
 546
 547         if (!prefix)
 548                 prefix = "";
 549
 550         sjack->gpio.gpio = -ENOENT;
 551
 552         if (is_hp) {
 553                 snprintf(prop, sizeof(prop), "%shp-det-gpio", prefix);
 554                 pin_name        = pin ? pin : "Headphones";
 555                 gpio_name       = "Headphone detection";
 556                 mask            = SND_JACK_HEADPHONE;
 557         } else {
 558                 snprintf(prop, sizeof(prop), "%smic-det-gpio", prefix);
 559                 pin_name        = pin ? pin : "Mic Jack";
 560                 gpio_name       = "Mic detection";
 561                 mask            = SND_JACK_MICROPHONE;
 562         }
 563
 564         det = of_get_named_gpio_flags(dev->of_node, prop, 0, &flags);
 565         if (det == -EPROBE_DEFER)
 566                 return -EPROBE_DEFER;
 567
 568         if (gpio_is_valid(det)) {
 569                 sjack->pin.pin          = pin_name;
 570                 sjack->pin.mask         = mask;
 571
 572                 sjack->gpio.name        = gpio_name;
 573                 sjack->gpio.report      = mask;
 574                 sjack->gpio.gpio        = det;
 575                 sjack->gpio.invert      = !!(flags & OF_GPIO_ACTIVE_LOW);
 576                 sjack->gpio.debounce_time = 150;
 577
 578                 snd_soc_card_jack_new(card, pin_name, mask,
 579                                       &sjack->jack,
 580                                       &sjack->pin, 1);
 581
 582                 snd_soc_jack_add_gpios(&sjack->jack, 1,
 583                                        &sjack->gpio);
 584         }
 585
 586         return 0;
 587 }
 588 EXPORT_SYMBOL_GPL(asoc_simple_init_jack);
 589
 590 int asoc_simple_init_priv(struct asoc_simple_priv *priv,
 591                           struct link_info *li)
 592 {
 593         struct snd_soc_card *card = simple_priv_to_card(priv);
 594         struct device *dev = simple_priv_to_dev(priv);
 595         struct snd_soc_dai_link *dai_link;
 596         struct simple_dai_props *dai_props;
 597         struct asoc_simple_dai *dais;
 598         struct snd_soc_dai_link_component *dlcs;
 599         struct snd_soc_codec_conf *cconf = NULL;
 600         int i, dai_num = 0, dlc_num = 0;
 601
 602         dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL);
 603         dai_link  = devm_kcalloc(dev, li->link, sizeof(*dai_link),  GFP_KERNEL);
 604         if (!dai_props || !dai_link)
 605                 return -ENOMEM;
 606
 607         /*
 608          * dais (= CPU+Codec)
 609          * dlcs (= CPU+Codec+Platform)
 610          */
 611         for (i = 0; i < li->link; i++) {
 612                 int cc = li->num[i].cpus + li->num[i].codecs;
 613
 614                 dai_num += cc;
 615                 dlc_num += cc + li->num[i].platforms;
 616         }
 617
 618         dais = devm_kcalloc(dev, dai_num, sizeof(*dais),      GFP_KERNEL);
 619         dlcs = devm_kcalloc(dev, dlc_num, sizeof(*dai_props), GFP_KERNEL);
 620         if (!dais || !dlcs)
 621                 return -ENOMEM;
 622
 623         if (li->conf) {
 624                 cconf = devm_kcalloc(dev, li->conf, sizeof(*cconf), GFP_KERNEL);
 625                 if (!cconf)
 626                         return -ENOMEM;
 627         }
 628
 629         /* dummy CPU/Codec */
 630         priv->dummy.of_node     = NULL;
 631         priv->dummy.dai_name    = "snd-soc-dummy-dai";
 632         priv->dummy.name        = "snd-soc-dummy";
 633
 634         priv->dai_props         = dai_props;
 635         priv->dai_link          = dai_link;
 636         priv->dais              = dais;
 637         priv->dlcs              = dlcs;
 638         priv->codec_conf        = cconf;
 639
 640         card->dai_link          = priv->dai_link;
 641         card->num_links         = li->link;
 642         card->codec_conf        = cconf;
 643         card->num_configs       = li->conf;
 644
 645         for (i = 0; i < li->link; i++) {
 646                 if (li->num[i].cpus) {
 647                         /* Normal CPU */
 648                         dai_props[i].cpus       =
 649                         dai_link[i].cpus        = dlcs;
 650                         dai_props[i].num.cpus   =
 651                         dai_link[i].num_cpus    = li->num[i].cpus;
 652
 653                         dlcs += li->num[i].cpus;
 654                 } else {
 655                         /* DPCM Be's CPU = dummy */
 656                         dai_props[i].cpus       =
 657                         dai_link[i].cpus        = &priv->dummy;
 658                         dai_props[i].num.cpus   =
 659                         dai_link[i].num_cpus    = 1;
 660                 }
 661
 662                 if (li->num[i].codecs) {
 663                         /* Normal Codec */
 664                         dai_props[i].codecs     =
 665                         dai_link[i].codecs      = dlcs;
 666                         dai_props[i].num.codecs =
 667                         dai_link[i].num_codecs  = li->num[i].codecs;
 668
 669                         dlcs += li->num[i].codecs;
 670                 } else {
 671                         /* DPCM Fe's Codec = dummy */
 672                         dai_props[i].codecs     =
 673                         dai_link[i].codecs      = &priv->dummy;
 674                         dai_props[i].num.codecs =
 675                         dai_link[i].num_codecs  = 1;
 676                 }
 677
 678                 if (li->num[i].platforms) {
 679                         /* Have Platform */
 680                         dai_props[i].platforms          =
 681                         dai_link[i].platforms           = dlcs;
 682                         dai_props[i].num.platforms      =
 683                         dai_link[i].num_platforms       = li->num[i].platforms;
 684
 685                         dlcs += li->num[i].platforms;
 686                 } else {
 687                         /* Doesn't have Platform */
 688                         dai_props[i].platforms          =
 689                         dai_link[i].platforms           = NULL;
 690                         dai_props[i].num.platforms      =
 691                         dai_link[i].num_platforms       = 0;
 692                 }
 693         }
 694
 695         return 0;
 696 }
 697 EXPORT_SYMBOL_GPL(asoc_simple_init_priv);
 698
 699 /* Module information */
 700 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
 701 MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");
 702 MODULE_LICENSE("GPL v2");