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_node *np,
  36                                char *prefix,
  37                                struct asoc_simple_data *data)
  38 {
  39         char prop[128];
  40
  41         if (!prefix)
  42                 prefix = "";
  43
  44         /* sampling rate convert */
  45         snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-rate");
  46         of_property_read_u32(np, prop, &data->convert_rate);
  47
  48         /* channels transfer */
  49         snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels");
  50         of_property_read_u32(np, prop, &data->convert_channels);
  51 }
  52 EXPORT_SYMBOL_GPL(asoc_simple_parse_convert);
  53
  54 int asoc_simple_parse_daifmt(struct device *dev,
  55                              struct device_node *node,
  56                              struct device_node *codec,
  57                              char *prefix,
  58                              unsigned int *retfmt)
  59 {
  60         struct device_node *bitclkmaster = NULL;
  61         struct device_node *framemaster = NULL;
  62         unsigned int daifmt;
  63
  64         daifmt = snd_soc_of_parse_daifmt(node, prefix,
  65                                          &bitclkmaster, &framemaster);
  66         daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
  67
  68         if (!bitclkmaster && !framemaster) {
  69                 /*
  70                  * No dai-link level and master setting was not found from
  71                  * sound node level, revert back to legacy DT parsing and
  72                  * take the settings from codec node.
  73                  */
  74                 dev_dbg(dev, "Revert to legacy daifmt parsing\n");
  75
  76                 daifmt = snd_soc_of_parse_daifmt(codec, NULL, NULL, NULL) |
  77                         (daifmt & ~SND_SOC_DAIFMT_CLOCK_MASK);
  78         } else {
  79                 if (codec == bitclkmaster)
  80                         daifmt |= (codec == framemaster) ?
  81                                 SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS;
  82                 else
  83                         daifmt |= (codec == framemaster) ?
  84                                 SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS;
  85         }
  86
  87         of_node_put(bitclkmaster);
  88         of_node_put(framemaster);
  89
  90         *retfmt = daifmt;
  91
  92         return 0;
  93 }
  94 EXPORT_SYMBOL_GPL(asoc_simple_parse_daifmt);
  95
  96 int asoc_simple_set_dailink_name(struct device *dev,
  97                                  struct snd_soc_dai_link *dai_link,
  98                                  const char *fmt, ...)
  99 {
 100         va_list ap;
 101         char *name = NULL;
 102         int ret = -ENOMEM;
 103
 104         va_start(ap, fmt);
 105         name = devm_kvasprintf(dev, GFP_KERNEL, fmt, ap);
 106         va_end(ap);
 107
 108         if (name) {
 109                 ret = 0;
 110
 111                 dai_link->name          = name;
 112                 dai_link->stream_name   = name;
 113         }
 114
 115         return ret;
 116 }
 117 EXPORT_SYMBOL_GPL(asoc_simple_set_dailink_name);
 118
 119 int asoc_simple_parse_card_name(struct snd_soc_card *card,
 120                                 char *prefix)
 121 {
 122         int ret;
 123
 124         if (!prefix)
 125                 prefix = "";
 126
 127         /* Parse the card name from DT */
 128         ret = snd_soc_of_parse_card_name(card, "label");
 129         if (ret < 0 || !card->name) {
 130                 char prop[128];
 131
 132                 snprintf(prop, sizeof(prop), "%sname", prefix);
 133                 ret = snd_soc_of_parse_card_name(card, prop);
 134                 if (ret < 0)
 135                         return ret;
 136         }
 137
 138         if (!card->name && card->dai_link)
 139                 card->name = card->dai_link->name;
 140
 141         return 0;
 142 }
 143 EXPORT_SYMBOL_GPL(asoc_simple_parse_card_name);
 144
 145 static int asoc_simple_clk_enable(struct asoc_simple_dai *dai)
 146 {
 147         if (dai)
 148                 return clk_prepare_enable(dai->clk);
 149
 150         return 0;
 151 }
 152
 153 static void asoc_simple_clk_disable(struct asoc_simple_dai *dai)
 154 {
 155         if (dai)
 156                 clk_disable_unprepare(dai->clk);
 157 }
 158
 159 int asoc_simple_parse_clk(struct device *dev,
 160                           struct device_node *node,
 161                           struct asoc_simple_dai *simple_dai,
 162                           struct snd_soc_dai_link_component *dlc)
 163 {
 164         struct clk *clk;
 165         u32 val;
 166
 167         /*
 168          * Parse dai->sysclk come from "clocks = <&xxx>"
 169          * (if system has common clock)
 170          *  or "system-clock-frequency = <xxx>"
 171          *  or device's module clock.
 172          */
 173         clk = devm_get_clk_from_child(dev, node, NULL);
 174         if (!IS_ERR(clk)) {
 175                 simple_dai->sysclk = clk_get_rate(clk);
 176
 177                 simple_dai->clk = clk;
 178         } else if (!of_property_read_u32(node, "system-clock-frequency", &val)) {
 179                 simple_dai->sysclk = val;
 180         } else {
 181                 clk = devm_get_clk_from_child(dev, dlc->of_node, NULL);
 182                 if (!IS_ERR(clk))
 183                         simple_dai->sysclk = clk_get_rate(clk);
 184         }
 185
 186         if (of_property_read_bool(node, "system-clock-direction-out"))
 187                 simple_dai->clk_direction = SND_SOC_CLOCK_OUT;
 188
 189         return 0;
 190 }
 191 EXPORT_SYMBOL_GPL(asoc_simple_parse_clk);
 192
 193 int asoc_simple_startup(struct snd_pcm_substream *substream)
 194 {
 195         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 196         struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 197         struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
 198         struct asoc_simple_dai *dai;
 199         int i1, i2, i;
 200         int ret;
 201
 202         for_each_prop_dai_cpu(props, i1, dai) {
 203                 ret = asoc_simple_clk_enable(dai);
 204                 if (ret)
 205                         goto cpu_err;
 206         }
 207
 208         for_each_prop_dai_codec(props, i2, dai) {
 209                 ret = asoc_simple_clk_enable(dai);
 210                 if (ret)
 211                         goto codec_err;
 212         }
 213
 214         return 0;
 215
 216 codec_err:
 217         for_each_prop_dai_codec(props, i, dai) {
 218                 if (i >= i2)
 219                         break;
 220                 asoc_simple_clk_disable(dai);
 221         }
 222 cpu_err:
 223         for_each_prop_dai_cpu(props, i, dai) {
 224                 if (i >= i1)
 225                         break;
 226                 asoc_simple_clk_disable(dai);
 227         }
 228         return ret;
 229 }
 230 EXPORT_SYMBOL_GPL(asoc_simple_startup);
 231
 232 void asoc_simple_shutdown(struct snd_pcm_substream *substream)
 233 {
 234         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 235         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 236         struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 237         struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 238         struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
 239         struct asoc_simple_dai *dai;
 240         int i;
 241
 242         if (props->mclk_fs) {
 243                 snd_soc_dai_set_sysclk(codec_dai, 0, 0, SND_SOC_CLOCK_IN);
 244                 snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_OUT);
 245         }
 246
 247         for_each_prop_dai_cpu(props, i, dai)
 248                 asoc_simple_clk_disable(dai);
 249         for_each_prop_dai_codec(props, i, dai)
 250                 asoc_simple_clk_disable(dai);
 251 }
 252 EXPORT_SYMBOL_GPL(asoc_simple_shutdown);
 253
 254 static int asoc_simple_set_clk_rate(struct asoc_simple_dai *simple_dai,
 255                                     unsigned long rate)
 256 {
 257         if (!simple_dai)
 258                 return 0;
 259
 260         if (!simple_dai->clk)
 261                 return 0;
 262
 263         if (clk_get_rate(simple_dai->clk) == rate)
 264                 return 0;
 265
 266         return clk_set_rate(simple_dai->clk, rate);
 267 }
 268
 269 int asoc_simple_hw_params(struct snd_pcm_substream *substream,
 270                           struct snd_pcm_hw_params *params)
 271 {
 272         struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 273         struct asoc_simple_dai *pdai;
 274         struct snd_soc_dai *sdai;
 275         struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 276         struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
 277         unsigned int mclk, mclk_fs = 0;
 278         int i, ret;
 279
 280         if (props->mclk_fs)
 281                 mclk_fs = props->mclk_fs;
 282
 283         if (mclk_fs) {
 284                 mclk = params_rate(params) * mclk_fs;
 285
 286                 for_each_prop_dai_codec(props, i, pdai) {
 287                         ret = asoc_simple_set_clk_rate(pdai, mclk);
 288                         if (ret < 0)
 289                                 return ret;
 290                 }
 291                 for_each_prop_dai_cpu(props, i, pdai) {
 292                         ret = asoc_simple_set_clk_rate(pdai, mclk);
 293                         if (ret < 0)
 294                                 return ret;
 295                 }
 296                 for_each_rtd_codec_dais(rtd, i, sdai) {
 297                         ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_IN);
 298                         if (ret && ret != -ENOTSUPP)
 299                                 return ret;
 300                 }
 301                 for_each_rtd_cpu_dais(rtd, i, sdai) {
 302                         ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_OUT);
 303                         if (ret && ret != -ENOTSUPP)
 304                                 return ret;
 305                 }
 306         }
 307         return 0;
 308 }
 309 EXPORT_SYMBOL_GPL(asoc_simple_hw_params);
 310
 311 int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 312                                    struct snd_pcm_hw_params *params)
 313 {
 314         struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 315         struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
 316
 317         asoc_simple_convert_fixup(&dai_props->adata, params);
 318
 319         return 0;
 320 }
 321 EXPORT_SYMBOL_GPL(asoc_simple_be_hw_params_fixup);
 322
 323 static int asoc_simple_init_dai(struct snd_soc_dai *dai,
 324                                      struct asoc_simple_dai *simple_dai)
 325 {
 326         int ret;
 327
 328         if (!simple_dai)
 329                 return 0;
 330
 331         if (simple_dai->sysclk) {
 332                 ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk,
 333                                              simple_dai->clk_direction);
 334                 if (ret && ret != -ENOTSUPP) {
 335                         dev_err(dai->dev, "simple-card: set_sysclk error\n");
 336                         return ret;
 337                 }
 338         }
 339
 340         if (simple_dai->slots) {
 341                 ret = snd_soc_dai_set_tdm_slot(dai,
 342                                                simple_dai->tx_slot_mask,
 343                                                simple_dai->rx_slot_mask,
 344                                                simple_dai->slots,
 345                                                simple_dai->slot_width);
 346                 if (ret && ret != -ENOTSUPP) {
 347                         dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
 348                         return ret;
 349                 }
 350         }
 351
 352         return 0;
 353 }
 354
 355 static int asoc_simple_init_dai_link_params(struct snd_soc_pcm_runtime *rtd,
 356                                             struct simple_dai_props *dai_props)
 357 {
 358         struct snd_soc_dai_link *dai_link = rtd->dai_link;
 359         struct snd_soc_component *component;
 360         struct snd_soc_pcm_stream *params;
 361         struct snd_pcm_hardware hw;
 362         int i, ret, stream;
 363
 364         /* Only codecs should have non_legacy_dai_naming set. */
 365         for_each_rtd_components(rtd, i, component) {
 366                 if (!component->driver->non_legacy_dai_naming)
 367                         return 0;
 368         }
 369
 370         /* Assumes the capabilities are the same for all supported streams */
 371         for_each_pcm_streams(stream) {
 372                 ret = snd_soc_runtime_calc_hw(rtd, &hw, stream);
 373                 if (ret == 0)
 374                         break;
 375         }
 376
 377         if (ret < 0) {
 378                 dev_err(rtd->dev, "simple-card: no valid dai_link params\n");
 379                 return ret;
 380         }
 381
 382         params = devm_kzalloc(rtd->dev, sizeof(*params), GFP_KERNEL);
 383         if (!params)
 384                 return -ENOMEM;
 385
 386         params->formats = hw.formats;
 387         params->rates = hw.rates;
 388         params->rate_min = hw.rate_min;
 389         params->rate_max = hw.rate_max;
 390         params->channels_min = hw.channels_min;
 391         params->channels_max = hw.channels_max;
 392
 393         dai_link->params = params;
 394         dai_link->num_params = 1;
 395
 396         return 0;
 397 }
 398
 399 int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd)
 400 {
 401         struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 402         struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
 403         struct asoc_simple_dai *dai;
 404         int i, ret;
 405
 406         for_each_prop_dai_codec(props, i, dai) {
 407                 ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, i), dai);
 408                 if (ret < 0)
 409                         return ret;
 410         }
 411         for_each_prop_dai_cpu(props, i, dai) {
 412                 ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, i), dai);
 413                 if (ret < 0)
 414                         return ret;
 415         }
 416
 417         ret = asoc_simple_init_dai_link_params(rtd, props);
 418         if (ret < 0)
 419                 return ret;
 420
 421         return 0;
 422 }
 423 EXPORT_SYMBOL_GPL(asoc_simple_dai_init);
 424
 425 void asoc_simple_canonicalize_platform(struct snd_soc_dai_link_component *platforms,
 426                                        struct snd_soc_dai_link_component *cpus)
 427 {
 428         /* Assumes platform == cpu */
 429         if (!platforms->of_node)
 430                 platforms->of_node = cpus->of_node;
 431 }
 432 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform);
 433
 434 void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus,
 435                                   int is_single_links)
 436 {
 437         /*
 438          * In soc_bind_dai_link() will check cpu name after
 439          * of_node matching if dai_link has cpu_dai_name.
 440          * but, it will never match if name was created by
 441          * fmt_single_name() remove cpu_dai_name if cpu_args
 442          * was 0. See:
 443          *      fmt_single_name()
 444          *      fmt_multiple_name()
 445          */
 446         if (is_single_links)
 447                 cpus->dai_name = NULL;
 448 }
 449 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu);
 450
 451 int asoc_simple_clean_reference(struct snd_soc_card *card)
 452 {
 453         struct snd_soc_dai_link *dai_link;
 454         struct snd_soc_dai_link_component *cpu;
 455         struct snd_soc_dai_link_component *codec;
 456         int i, j;
 457
 458         for_each_card_prelinks(card, i, dai_link) {
 459                 for_each_link_cpus(dai_link, j, cpu)
 460                         of_node_put(cpu->of_node);
 461                 for_each_link_codecs(dai_link, j, codec)
 462                         of_node_put(codec->of_node);
 463         }
 464         return 0;
 465 }
 466 EXPORT_SYMBOL_GPL(asoc_simple_clean_reference);
 467
 468 int asoc_simple_parse_routing(struct snd_soc_card *card,
 469                               char *prefix)
 470 {
 471         struct device_node *node = card->dev->of_node;
 472         char prop[128];
 473
 474         if (!prefix)
 475                 prefix = "";
 476
 477         snprintf(prop, sizeof(prop), "%s%s", prefix, "routing");
 478
 479         if (!of_property_read_bool(node, prop))
 480                 return 0;
 481
 482         return snd_soc_of_parse_audio_routing(card, prop);
 483 }
 484 EXPORT_SYMBOL_GPL(asoc_simple_parse_routing);
 485
 486 int asoc_simple_parse_widgets(struct snd_soc_card *card,
 487                               char *prefix)
 488 {
 489         struct device_node *node = card->dev->of_node;
 490         char prop[128];
 491
 492         if (!prefix)
 493                 prefix = "";
 494
 495         snprintf(prop, sizeof(prop), "%s%s", prefix, "widgets");
 496
 497         if (of_property_read_bool(node, prop))
 498                 return snd_soc_of_parse_audio_simple_widgets(card, prop);
 499
 500         /* no widgets is not error */
 501         return 0;
 502 }
 503 EXPORT_SYMBOL_GPL(asoc_simple_parse_widgets);
 504
 505 int asoc_simple_parse_pin_switches(struct snd_soc_card *card,
 506                                    char *prefix)
 507 {
 508         const unsigned int nb_controls_max = 16;
 509         const char **strings, *control_name;
 510         struct snd_kcontrol_new *controls;
 511         struct device *dev = card->dev;
 512         unsigned int i, nb_controls;
 513         char prop[128];
 514         int ret;
 515
 516         if (!prefix)
 517                 prefix = "";
 518
 519         snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches");
 520
 521         if (!of_property_read_bool(dev->of_node, prop))
 522                 return 0;
 523
 524         strings = devm_kcalloc(dev, nb_controls_max,
 525                                sizeof(*strings), GFP_KERNEL);
 526         if (!strings)
 527                 return -ENOMEM;
 528
 529         ret = of_property_read_string_array(dev->of_node, prop,
 530                                             strings, nb_controls_max);
 531         if (ret < 0)
 532                 return ret;
 533
 534         nb_controls = (unsigned int)ret;
 535
 536         controls = devm_kcalloc(dev, nb_controls,
 537                                 sizeof(*controls), GFP_KERNEL);
 538         if (!controls)
 539                 return -ENOMEM;
 540
 541         for (i = 0; i < nb_controls; i++) {
 542                 control_name = devm_kasprintf(dev, GFP_KERNEL,
 543                                               "%s Switch", strings[i]);
 544                 if (!control_name)
 545                         return -ENOMEM;
 546
 547                 controls[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 548                 controls[i].name = control_name;
 549                 controls[i].info = snd_soc_dapm_info_pin_switch;
 550                 controls[i].get = snd_soc_dapm_get_pin_switch;
 551                 controls[i].put = snd_soc_dapm_put_pin_switch;
 552                 controls[i].private_value = (unsigned long)strings[i];
 553         }
 554
 555         card->controls = controls;
 556         card->num_controls = nb_controls;
 557
 558         return 0;
 559 }
 560 EXPORT_SYMBOL_GPL(asoc_simple_parse_pin_switches);
 561
 562 int asoc_simple_init_jack(struct snd_soc_card *card,
 563                           struct asoc_simple_jack *sjack,
 564                           int is_hp, char *prefix,
 565                           char *pin)
 566 {
 567         struct device *dev = card->dev;
 568         enum of_gpio_flags flags;
 569         char prop[128];
 570         char *pin_name;
 571         char *gpio_name;
 572         int mask;
 573         int det;
 574
 575         if (!prefix)
 576                 prefix = "";
 577
 578         sjack->gpio.gpio = -ENOENT;
 579
 580         if (is_hp) {
 581                 snprintf(prop, sizeof(prop), "%shp-det-gpio", prefix);
 582                 pin_name        = pin ? pin : "Headphones";
 583                 gpio_name       = "Headphone detection";
 584                 mask            = SND_JACK_HEADPHONE;
 585         } else {
 586                 snprintf(prop, sizeof(prop), "%smic-det-gpio", prefix);
 587                 pin_name        = pin ? pin : "Mic Jack";
 588                 gpio_name       = "Mic detection";
 589                 mask            = SND_JACK_MICROPHONE;
 590         }
 591
 592         det = of_get_named_gpio_flags(dev->of_node, prop, 0, &flags);
 593         if (det == -EPROBE_DEFER)
 594                 return -EPROBE_DEFER;
 595
 596         if (gpio_is_valid(det)) {
 597                 sjack->pin.pin          = pin_name;
 598                 sjack->pin.mask         = mask;
 599
 600                 sjack->gpio.name        = gpio_name;
 601                 sjack->gpio.report      = mask;
 602                 sjack->gpio.gpio        = det;
 603                 sjack->gpio.invert      = !!(flags & OF_GPIO_ACTIVE_LOW);
 604                 sjack->gpio.debounce_time = 150;
 605
 606                 snd_soc_card_jack_new(card, pin_name, mask,
 607                                       &sjack->jack,
 608                                       &sjack->pin, 1);
 609
 610                 snd_soc_jack_add_gpios(&sjack->jack, 1,
 611                                        &sjack->gpio);
 612         }
 613
 614         return 0;
 615 }
 616 EXPORT_SYMBOL_GPL(asoc_simple_init_jack);
 617
 618 int asoc_simple_init_priv(struct asoc_simple_priv *priv,
 619                           struct link_info *li)
 620 {
 621         struct snd_soc_card *card = simple_priv_to_card(priv);
 622         struct device *dev = simple_priv_to_dev(priv);
 623         struct snd_soc_dai_link *dai_link;
 624         struct simple_dai_props *dai_props;
 625         struct asoc_simple_dai *dais;
 626         struct snd_soc_dai_link_component *dlcs;
 627         struct snd_soc_codec_conf *cconf = NULL;
 628         int i, dai_num = 0, dlc_num = 0, cnf_num = 0;
 629
 630         dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL);
 631         dai_link  = devm_kcalloc(dev, li->link, sizeof(*dai_link),  GFP_KERNEL);
 632         if (!dai_props || !dai_link)
 633                 return -ENOMEM;
 634
 635         /*
 636          * dais (= CPU+Codec)
 637          * dlcs (= CPU+Codec+Platform)
 638          */
 639         for (i = 0; i < li->link; i++) {
 640                 int cc = li->num[i].cpus + li->num[i].codecs;
 641
 642                 dai_num += cc;
 643                 dlc_num += cc + li->num[i].platforms;
 644
 645                 if (!li->num[i].cpus)
 646                         cnf_num += li->num[i].codecs;
 647         }
 648
 649         dais = devm_kcalloc(dev, dai_num, sizeof(*dais),      GFP_KERNEL);
 650         dlcs = devm_kcalloc(dev, dlc_num, sizeof(*dai_props), GFP_KERNEL);
 651         if (!dais || !dlcs)
 652                 return -ENOMEM;
 653
 654         if (cnf_num) {
 655                 cconf = devm_kcalloc(dev, cnf_num, sizeof(*cconf), GFP_KERNEL);
 656                 if (!cconf)
 657                         return -ENOMEM;
 658         }
 659
 660         dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
 661                 li->link, dai_num, cnf_num);
 662
 663         /* dummy CPU/Codec */
 664         priv->dummy.of_node     = NULL;
 665         priv->dummy.dai_name    = "snd-soc-dummy-dai";
 666         priv->dummy.name        = "snd-soc-dummy";
 667
 668         priv->dai_props         = dai_props;
 669         priv->dai_link          = dai_link;
 670         priv->dais              = dais;
 671         priv->dlcs              = dlcs;
 672         priv->codec_conf        = cconf;
 673
 674         card->dai_link          = priv->dai_link;
 675         card->num_links         = li->link;
 676         card->codec_conf        = cconf;
 677         card->num_configs       = cnf_num;
 678
 679         for (i = 0; i < li->link; i++) {
 680                 if (li->num[i].cpus) {
 681                         /* Normal CPU */
 682                         dai_props[i].cpus       =
 683                         dai_link[i].cpus        = dlcs;
 684                         dai_props[i].num.cpus   =
 685                         dai_link[i].num_cpus    = li->num[i].cpus;
 686                         dai_props[i].cpu_dai    = dais;
 687
 688                         dlcs += li->num[i].cpus;
 689                         dais += li->num[i].cpus;
 690                 } else {
 691                         /* DPCM Be's CPU = dummy */
 692                         dai_props[i].cpus       =
 693                         dai_link[i].cpus        = &priv->dummy;
 694                         dai_props[i].num.cpus   =
 695                         dai_link[i].num_cpus    = 1;
 696                 }
 697
 698                 if (li->num[i].codecs) {
 699                         /* Normal Codec */
 700                         dai_props[i].codecs     =
 701                         dai_link[i].codecs      = dlcs;
 702                         dai_props[i].num.codecs =
 703                         dai_link[i].num_codecs  = li->num[i].codecs;
 704                         dai_props[i].codec_dai  = dais;
 705
 706                         dlcs += li->num[i].codecs;
 707                         dais += li->num[i].codecs;
 708
 709                         if (!li->num[i].cpus) {
 710                                 /* DPCM Be's Codec */
 711                                 dai_props[i].codec_conf = cconf;
 712                                 cconf += li->num[i].codecs;
 713                         }
 714                 } else {
 715                         /* DPCM Fe's Codec = dummy */
 716                         dai_props[i].codecs     =
 717                         dai_link[i].codecs      = &priv->dummy;
 718                         dai_props[i].num.codecs =
 719                         dai_link[i].num_codecs  = 1;
 720                 }
 721
 722                 if (li->num[i].platforms) {
 723                         /* Have Platform */
 724                         dai_props[i].platforms          =
 725                         dai_link[i].platforms           = dlcs;
 726                         dai_props[i].num.platforms      =
 727                         dai_link[i].num_platforms       = li->num[i].platforms;
 728
 729                         dlcs += li->num[i].platforms;
 730                 } else {
 731                         /* Doesn't have Platform */
 732                         dai_props[i].platforms          =
 733                         dai_link[i].platforms           = NULL;
 734                         dai_props[i].num.platforms      =
 735                         dai_link[i].num_platforms       = 0;
 736                 }
 737         }
 738
 739         return 0;
 740 }
 741 EXPORT_SYMBOL_GPL(asoc_simple_init_priv);
 742
 743 int asoc_simple_remove(struct platform_device *pdev)
 744 {
 745         struct snd_soc_card *card = platform_get_drvdata(pdev);
 746
 747         return asoc_simple_clean_reference(card);
 748 }
 749 EXPORT_SYMBOL_GPL(asoc_simple_remove);
 750
 751 int asoc_graph_card_probe(struct snd_soc_card *card)
 752 {
 753         struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(card);
 754         int ret;
 755
 756         ret = asoc_simple_init_hp(card, &priv->hp_jack, NULL);
 757         if (ret < 0)
 758                 return ret;
 759
 760         ret = asoc_simple_init_mic(card, &priv->mic_jack, NULL);
 761         if (ret < 0)
 762                 return ret;
 763
 764         return 0;
 765 }
 766 EXPORT_SYMBOL_GPL(asoc_graph_card_probe);
 767
 768 /* Module information */
 769 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
 770 MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");
 771 MODULE_LICENSE("GPL v2");