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1// SPDX-License-Identifier: GPL-2.02//3// ASoC simple sound card support4//5// Copyright (C) 2012 Renesas Solutions Corp.6// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>7 8#include <linux/cleanup.h>9#include <linux/clk.h>10#include <linux/device.h>11#include <linux/module.h>12#include <linux/of.h>13#include <linux/of_platform.h>14#include <linux/platform_device.h>15#include <linux/string.h>16#include <sound/simple_card.h>17#include <sound/soc-dai.h>18#include <sound/soc.h>19 20#define DPCM_SELECTABLE 121 22#define DAI "sound-dai"23#define CELL "#sound-dai-cells"24#define PREFIX "simple-audio-card,"25 26static const struct snd_soc_ops simple_ops = {27 .startup = simple_util_startup,28 .shutdown = simple_util_shutdown,29 .hw_params = simple_util_hw_params,30};31 32static int simple_parse_platform(struct device_node *node, struct snd_soc_dai_link_component *dlc)33{34 struct of_phandle_args args;35 int ret;36 37 if (!node)38 return 0;39 40 /*41 * Get node via "sound-dai = <&phandle port>"42 * it will be used as xxx_of_node on soc_bind_dai_link()43 */44 ret = of_parse_phandle_with_args(node, DAI, CELL, 0, &args);45 if (ret)46 return ret;47 48 /* dai_name is not required and may not exist for plat component */49 50 dlc->of_node = args.np;51 52 return 0;53}54 55static int simple_parse_dai(struct device *dev,56 struct device_node *node,57 struct snd_soc_dai_link_component *dlc,58 int *is_single_link)59{60 struct of_phandle_args args;61 struct snd_soc_dai *dai;62 int ret;63 64 if (!node)65 return 0;66 67 /*68 * Get node via "sound-dai = <&phandle port>"69 * it will be used as xxx_of_node on soc_bind_dai_link()70 */71 ret = of_parse_phandle_with_args(node, DAI, CELL, 0, &args);72 if (ret)73 return ret;74 75 /*76 * Try to find from DAI args77 */78 dai = snd_soc_get_dai_via_args(&args);79 if (dai) {80 dlc->dai_name = snd_soc_dai_name_get(dai);81 dlc->dai_args = snd_soc_copy_dai_args(dev, &args);82 if (!dlc->dai_args)83 return -ENOMEM;84 85 goto parse_dai_end;86 }87 88 /*89 * FIXME90 *91 * Here, dlc->dai_name is pointer to CPU/Codec DAI name.92 * If user unbinded CPU or Codec driver, but not for Sound Card,93 * dlc->dai_name is keeping unbinded CPU or Codec94 * driver's pointer.95 *96 * If user re-bind CPU or Codec driver again, ALSA SoC will try97 * to rebind Card via snd_soc_try_rebind_card(), but because of98 * above reason, it might can't bind Sound Card.99 * Because Sound Card is pointing to released dai_name pointer.100 *101 * To avoid this rebind Card issue,102 * 1) It needs to alloc memory to keep dai_name eventhough103 * CPU or Codec driver was unbinded, or104 * 2) user need to rebind Sound Card everytime105 * if he unbinded CPU or Codec.106 */107 ret = snd_soc_get_dlc(&args, dlc);108 if (ret < 0)109 return ret;110 111parse_dai_end:112 if (is_single_link)113 *is_single_link = !args.args_count;114 115 return 0;116}117 118static void simple_parse_convert(struct device *dev,119 struct device_node *np,120 struct simple_util_data *adata)121{122 struct device_node *top = dev->of_node;123 struct device_node *node = of_get_parent(np);124 125 simple_util_parse_convert(top, PREFIX, adata);126 simple_util_parse_convert(node, PREFIX, adata);127 simple_util_parse_convert(node, NULL, adata);128 simple_util_parse_convert(np, NULL, adata);129 130 of_node_put(node);131}132 133static int simple_parse_node(struct simple_util_priv *priv,134 struct device_node *np,135 struct link_info *li,136 char *prefix,137 int *cpu)138{139 struct device *dev = simple_priv_to_dev(priv);140 struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);141 struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);142 struct snd_soc_dai_link_component *dlc;143 struct simple_util_dai *dai;144 int ret;145 146 if (cpu) {147 dlc = snd_soc_link_to_cpu(dai_link, 0);148 dai = simple_props_to_dai_cpu(dai_props, 0);149 } else {150 dlc = snd_soc_link_to_codec(dai_link, 0);151 dai = simple_props_to_dai_codec(dai_props, 0);152 }153 154 ret = simple_parse_dai(dev, np, dlc, cpu);155 if (ret)156 return ret;157 158 ret = simple_util_parse_clk(dev, np, dai, dlc);159 if (ret)160 return ret;161 162 ret = simple_util_parse_tdm(np, dai);163 if (ret)164 return ret;165 166 return 0;167}168 169static int simple_link_init(struct simple_util_priv *priv,170 struct device_node *cpu,171 struct device_node *codec,172 struct link_info *li,173 char *prefix, char *name)174{175 struct device *dev = simple_priv_to_dev(priv);176 struct device_node *top = dev->of_node;177 struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);178 struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);179 struct device_node *node = of_get_parent(cpu);180 enum snd_soc_trigger_order trigger_start = SND_SOC_TRIGGER_ORDER_DEFAULT;181 enum snd_soc_trigger_order trigger_stop = SND_SOC_TRIGGER_ORDER_DEFAULT;182 bool playback_only = 0, capture_only = 0;183 int ret;184 185 ret = simple_util_parse_daifmt(dev, node, codec,186 prefix, &dai_link->dai_fmt);187 if (ret < 0)188 goto init_end;189 190 graph_util_parse_link_direction(top, &playback_only, &capture_only);191 graph_util_parse_link_direction(node, &playback_only, &capture_only);192 graph_util_parse_link_direction(cpu, &playback_only, &capture_only);193 graph_util_parse_link_direction(codec, &playback_only, &capture_only);194 195 of_property_read_u32(top, "mclk-fs", &dai_props->mclk_fs);196 of_property_read_u32(top, PREFIX "mclk-fs", &dai_props->mclk_fs);197 of_property_read_u32(node, "mclk-fs", &dai_props->mclk_fs);198 of_property_read_u32(node, PREFIX "mclk-fs", &dai_props->mclk_fs);199 of_property_read_u32(cpu, "mclk-fs", &dai_props->mclk_fs);200 of_property_read_u32(cpu, PREFIX "mclk-fs", &dai_props->mclk_fs);201 of_property_read_u32(codec, "mclk-fs", &dai_props->mclk_fs);202 of_property_read_u32(codec, PREFIX "mclk-fs", &dai_props->mclk_fs);203 204 graph_util_parse_trigger_order(priv, top, &trigger_start, &trigger_stop);205 graph_util_parse_trigger_order(priv, node, &trigger_start, &trigger_stop);206 graph_util_parse_trigger_order(priv, cpu, &trigger_start, &trigger_stop);207 graph_util_parse_trigger_order(priv, codec, &trigger_start, &trigger_stop);208 209 dai_link->playback_only = playback_only;210 dai_link->capture_only = capture_only;211 212 dai_link->trigger_start = trigger_start;213 dai_link->trigger_stop = trigger_stop;214 215 dai_link->init = simple_util_dai_init;216 dai_link->ops = &simple_ops;217 218 ret = simple_util_set_dailink_name(dev, dai_link, name);219init_end:220 of_node_put(node);221 222 return ret;223}224 225static int simple_dai_link_of_dpcm(struct simple_util_priv *priv,226 struct device_node *np,227 struct device_node *codec,228 struct link_info *li,229 bool is_top)230{231 struct device *dev = simple_priv_to_dev(priv);232 struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);233 struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);234 struct device_node *top = dev->of_node;235 struct device_node *node = of_get_parent(np);236 char *prefix = "";237 char dai_name[64];238 int ret;239 240 dev_dbg(dev, "link_of DPCM (%pOF)\n", np);241 242 /* For single DAI link & old style of DT node */243 if (is_top)244 prefix = PREFIX;245 246 if (li->cpu) {247 struct snd_soc_dai_link_component *cpus = snd_soc_link_to_cpu(dai_link, 0);248 struct snd_soc_dai_link_component *platforms = snd_soc_link_to_platform(dai_link, 0);249 int is_single_links = 0;250 251 /* Codec is dummy */252 253 /* FE settings */254 dai_link->dynamic = 1;255 dai_link->dpcm_merged_format = 1;256 257 ret = simple_parse_node(priv, np, li, prefix, &is_single_links);258 if (ret < 0)259 goto out_put_node;260 261 snprintf(dai_name, sizeof(dai_name), "fe.%s", cpus->dai_name);262 263 simple_util_canonicalize_cpu(cpus, is_single_links);264 simple_util_canonicalize_platform(platforms, cpus);265 } else {266 struct snd_soc_dai_link_component *codecs = snd_soc_link_to_codec(dai_link, 0);267 struct snd_soc_codec_conf *cconf;268 269 /* CPU is dummy */270 271 /* BE settings */272 dai_link->no_pcm = 1;273 dai_link->be_hw_params_fixup = simple_util_be_hw_params_fixup;274 275 cconf = simple_props_to_codec_conf(dai_props, 0);276 277 ret = simple_parse_node(priv, np, li, prefix, NULL);278 if (ret < 0)279 goto out_put_node;280 281 snprintf(dai_name, sizeof(dai_name), "be.%s", codecs->dai_name);282 283 /* check "prefix" from top node */284 snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node,285 PREFIX "prefix");286 snd_soc_of_parse_node_prefix(node, cconf, codecs->of_node,287 "prefix");288 snd_soc_of_parse_node_prefix(np, cconf, codecs->of_node,289 "prefix");290 }291 292 simple_parse_convert(dev, np, &dai_props->adata);293 294 ret = simple_link_init(priv, np, codec, li, prefix, dai_name);295 296out_put_node:297 li->link++;298 299 of_node_put(node);300 return ret;301}302 303static int simple_dai_link_of(struct simple_util_priv *priv,304 struct device_node *np,305 struct device_node *codec,306 struct link_info *li,307 bool is_top)308{309 struct device *dev = simple_priv_to_dev(priv);310 struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);311 struct snd_soc_dai_link_component *cpus = snd_soc_link_to_cpu(dai_link, 0);312 struct snd_soc_dai_link_component *codecs = snd_soc_link_to_codec(dai_link, 0);313 struct snd_soc_dai_link_component *platforms = snd_soc_link_to_platform(dai_link, 0);314 struct device_node *cpu = NULL;315 struct device_node *node = NULL;316 struct device_node *plat = NULL;317 char dai_name[64];318 char prop[128];319 char *prefix = "";320 int ret, single_cpu = 0;321 322 cpu = np;323 node = of_get_parent(np);324 325 dev_dbg(dev, "link_of (%pOF)\n", node);326 327 /* For single DAI link & old style of DT node */328 if (is_top)329 prefix = PREFIX;330 331 snprintf(prop, sizeof(prop), "%splat", prefix);332 plat = of_get_child_by_name(node, prop);333 334 ret = simple_parse_node(priv, cpu, li, prefix, &single_cpu);335 if (ret < 0)336 goto dai_link_of_err;337 338 ret = simple_parse_node(priv, codec, li, prefix, NULL);339 if (ret < 0)340 goto dai_link_of_err;341 342 ret = simple_parse_platform(plat, platforms);343 if (ret < 0)344 goto dai_link_of_err;345 346 snprintf(dai_name, sizeof(dai_name),347 "%s-%s", cpus->dai_name, codecs->dai_name);348 349 simple_util_canonicalize_cpu(cpus, single_cpu);350 simple_util_canonicalize_platform(platforms, cpus);351 352 ret = simple_link_init(priv, cpu, codec, li, prefix, dai_name);353 354dai_link_of_err:355 of_node_put(plat);356 of_node_put(node);357 358 li->link++;359 360 return ret;361}362 363static int __simple_for_each_link(struct simple_util_priv *priv,364 struct link_info *li,365 int (*func_noml)(struct simple_util_priv *priv,366 struct device_node *np,367 struct device_node *codec,368 struct link_info *li, bool is_top),369 int (*func_dpcm)(struct simple_util_priv *priv,370 struct device_node *np,371 struct device_node *codec,372 struct link_info *li, bool is_top))373{374 struct device *dev = simple_priv_to_dev(priv);375 struct device_node *top = dev->of_node;376 struct device_node *node;377 struct device_node *add_devs;378 uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev);379 bool is_top = 0;380 int ret = 0;381 382 /* Check if it has dai-link */383 node = of_get_child_by_name(top, PREFIX "dai-link");384 if (!node) {385 node = of_node_get(top);386 is_top = 1;387 }388 389 add_devs = of_get_child_by_name(top, PREFIX "additional-devs");390 391 /* loop for all dai-link */392 do {393 struct simple_util_data adata;394 struct device_node *codec;395 struct device_node *plat;396 struct device_node *np;397 int num = of_get_child_count(node);398 399 /* Skip additional-devs node */400 if (node == add_devs) {401 node = of_get_next_child(top, node);402 continue;403 }404 405 /* get codec */406 codec = of_get_child_by_name(node, is_top ?407 PREFIX "codec" : "codec");408 if (!codec) {409 ret = -ENODEV;410 goto error;411 }412 /* get platform */413 plat = of_get_child_by_name(node, is_top ?414 PREFIX "plat" : "plat");415 416 /* get convert-xxx property */417 memset(&adata, 0, sizeof(adata));418 for_each_child_of_node(node, np) {419 if (np == add_devs)420 continue;421 simple_parse_convert(dev, np, &adata);422 }423 424 /* loop for all CPU/Codec node */425 for_each_child_of_node(node, np) {426 if (plat == np || add_devs == np)427 continue;428 /*429 * It is DPCM430 * if it has many CPUs,431 * or has convert-xxx property432 */433 if (dpcm_selectable &&434 (num > 2 || simple_util_is_convert_required(&adata))) {435 /*436 * np437 * |1(CPU)|0(Codec) li->cpu438 * CPU |Pass |return439 * Codec |return|Pass440 */441 if (li->cpu != (np == codec))442 ret = func_dpcm(priv, np, codec, li, is_top);443 /* else normal sound */444 } else {445 /*446 * np447 * |1(CPU)|0(Codec) li->cpu448 * CPU |Pass |return449 * Codec |return|return450 */451 if (li->cpu && (np != codec))452 ret = func_noml(priv, np, codec, li, is_top);453 }454 455 if (ret < 0) {456 of_node_put(codec);457 of_node_put(plat);458 of_node_put(np);459 goto error;460 }461 }462 463 of_node_put(codec);464 of_node_put(plat);465 node = of_get_next_child(top, node);466 } while (!is_top && node);467 468 error:469 of_node_put(add_devs);470 of_node_put(node);471 return ret;472}473 474static int simple_for_each_link(struct simple_util_priv *priv,475 struct link_info *li,476 int (*func_noml)(struct simple_util_priv *priv,477 struct device_node *np,478 struct device_node *codec,479 struct link_info *li, bool is_top),480 int (*func_dpcm)(struct simple_util_priv *priv,481 struct device_node *np,482 struct device_node *codec,483 struct link_info *li, bool is_top))484{485 int ret;486 /*487 * Detect all CPU first, and Detect all Codec 2nd.488 *489 * In Normal sound case, all DAIs are detected490 * as "CPU-Codec".491 *492 * In DPCM sound case,493 * all CPUs are detected as "CPU-dummy", and494 * all Codecs are detected as "dummy-Codec".495 * To avoid random sub-device numbering,496 * detect "dummy-Codec" in last;497 */498 for (li->cpu = 1; li->cpu >= 0; li->cpu--) {499 ret = __simple_for_each_link(priv, li, func_noml, func_dpcm);500 if (ret < 0)501 break;502 }503 504 return ret;505}506 507static void simple_depopulate_aux(void *data)508{509 struct simple_util_priv *priv = data;510 511 of_platform_depopulate(simple_priv_to_dev(priv));512}513 514static int simple_populate_aux(struct simple_util_priv *priv)515{516 struct device *dev = simple_priv_to_dev(priv);517 struct device_node *node;518 int ret;519 520 node = of_get_child_by_name(dev->of_node, PREFIX "additional-devs");521 if (!node)522 return 0;523 524 ret = of_platform_populate(node, NULL, NULL, dev);525 of_node_put(node);526 if (ret)527 return ret;528 529 return devm_add_action_or_reset(dev, simple_depopulate_aux, priv);530}531 532static int simple_parse_of(struct simple_util_priv *priv, struct link_info *li)533{534 struct snd_soc_card *card = simple_priv_to_card(priv);535 int ret;536 537 ret = simple_util_parse_widgets(card, PREFIX);538 if (ret < 0)539 return ret;540 541 ret = simple_util_parse_routing(card, PREFIX);542 if (ret < 0)543 return ret;544 545 ret = simple_util_parse_pin_switches(card, PREFIX);546 if (ret < 0)547 return ret;548 549 /* Single/Muti DAI link(s) & New style of DT node */550 memset(li, 0, sizeof(*li));551 ret = simple_for_each_link(priv, li,552 simple_dai_link_of,553 simple_dai_link_of_dpcm);554 if (ret < 0)555 return ret;556 557 ret = simple_util_parse_card_name(card, PREFIX);558 if (ret < 0)559 return ret;560 561 ret = simple_populate_aux(priv);562 if (ret < 0)563 return ret;564 565 ret = snd_soc_of_parse_aux_devs(card, PREFIX "aux-devs");566 567 return ret;568}569 570static int simple_count_noml(struct simple_util_priv *priv,571 struct device_node *np,572 struct device_node *codec,573 struct link_info *li, bool is_top)574{575 if (li->link >= SNDRV_MAX_LINKS) {576 struct device *dev = simple_priv_to_dev(priv);577 578 dev_err(dev, "too many links\n");579 return -EINVAL;580 }581 582 /*583 * DON'T REMOVE platforms584 *585 * Some CPU might be using soc-generic-dmaengine-pcm. This means CPU and Platform586 * are different Component, but are sharing same component->dev.587 * Simple Card had been supported it without special Platform selection.588 * We need platforms here.589 *590 * In case of no Platform, it will be Platform == CPU, but Platform will be591 * ignored by snd_soc_rtd_add_component().592 *593 * see594 * simple-card-utils.c :: simple_util_canonicalize_platform()595 */596 li->num[li->link].cpus = 1;597 li->num[li->link].platforms = 1;598 599 li->num[li->link].codecs = 1;600 601 li->link += 1;602 603 return 0;604}605 606static int simple_count_dpcm(struct simple_util_priv *priv,607 struct device_node *np,608 struct device_node *codec,609 struct link_info *li, bool is_top)610{611 if (li->link >= SNDRV_MAX_LINKS) {612 struct device *dev = simple_priv_to_dev(priv);613 614 dev_err(dev, "too many links\n");615 return -EINVAL;616 }617 618 if (li->cpu) {619 /*620 * DON'T REMOVE platforms621 * see622 * simple_count_noml()623 */624 li->num[li->link].cpus = 1;625 li->num[li->link].platforms = 1;626 627 li->link++; /* CPU-dummy */628 } else {629 li->num[li->link].codecs = 1;630 631 li->link++; /* dummy-Codec */632 }633 634 return 0;635}636 637static int simple_get_dais_count(struct simple_util_priv *priv,638 struct link_info *li)639{640 struct device *dev = simple_priv_to_dev(priv);641 struct device_node *top = dev->of_node;642 643 /*644 * link_num : number of links.645 * CPU-Codec / CPU-dummy / dummy-Codec646 * dais_num : number of DAIs647 * ccnf_num : number of codec_conf648 * same number for "dummy-Codec"649 *650 * ex1)651 * CPU0 --- Codec0 link : 5652 * CPU1 --- Codec1 dais : 7653 * CPU2 -/ ccnf : 1654 * CPU3 --- Codec2655 *656 * => 5 links = 2xCPU-Codec + 2xCPU-dummy + 1xdummy-Codec657 * => 7 DAIs = 4xCPU + 3xCodec658 * => 1 ccnf = 1xdummy-Codec659 *660 * ex2)661 * CPU0 --- Codec0 link : 5662 * CPU1 --- Codec1 dais : 6663 * CPU2 -/ ccnf : 1664 * CPU3 -/665 *666 * => 5 links = 1xCPU-Codec + 3xCPU-dummy + 1xdummy-Codec667 * => 6 DAIs = 4xCPU + 2xCodec668 * => 1 ccnf = 1xdummy-Codec669 *670 * ex3)671 * CPU0 --- Codec0 link : 6672 * CPU1 -/ dais : 6673 * CPU2 --- Codec1 ccnf : 2674 * CPU3 -/675 *676 * => 6 links = 0xCPU-Codec + 4xCPU-dummy + 2xdummy-Codec677 * => 6 DAIs = 4xCPU + 2xCodec678 * => 2 ccnf = 2xdummy-Codec679 *680 * ex4)681 * CPU0 --- Codec0 (convert-rate) link : 3682 * CPU1 --- Codec1 dais : 4683 * ccnf : 1684 *685 * => 3 links = 1xCPU-Codec + 1xCPU-dummy + 1xdummy-Codec686 * => 4 DAIs = 2xCPU + 2xCodec687 * => 1 ccnf = 1xdummy-Codec688 */689 if (!top) {690 li->num[0].cpus = 1;691 li->num[0].codecs = 1;692 li->num[0].platforms = 1;693 694 li->link = 1;695 return 0;696 }697 698 return simple_for_each_link(priv, li,699 simple_count_noml,700 simple_count_dpcm);701}702 703static int simple_soc_probe(struct snd_soc_card *card)704{705 struct simple_util_priv *priv = snd_soc_card_get_drvdata(card);706 int ret;707 708 ret = simple_util_init_hp(card, &priv->hp_jack, PREFIX);709 if (ret < 0)710 return ret;711 712 ret = simple_util_init_mic(card, &priv->mic_jack, PREFIX);713 if (ret < 0)714 return ret;715 716 ret = simple_util_init_aux_jacks(priv, PREFIX);717 if (ret < 0)718 return ret;719 720 return 0;721}722 723static int simple_probe(struct platform_device *pdev)724{725 struct simple_util_priv *priv;726 struct device *dev = &pdev->dev;727 struct device_node *np = dev->of_node;728 struct snd_soc_card *card;729 int ret;730 731 /* Allocate the private data and the DAI link array */732 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);733 if (!priv)734 return -ENOMEM;735 736 card = simple_priv_to_card(priv);737 card->owner = THIS_MODULE;738 card->dev = dev;739 card->probe = simple_soc_probe;740 card->driver_name = "simple-card";741 742 struct link_info *li __free(kfree) = kzalloc(sizeof(*li), GFP_KERNEL);743 if (!li)744 return -ENOMEM;745 746 ret = simple_get_dais_count(priv, li);747 if (ret < 0)748 return ret;749 750 if (!li->link)751 return -EINVAL;752 753 ret = simple_util_init_priv(priv, li);754 if (ret < 0)755 return ret;756 757 if (np && of_device_is_available(np)) {758 759 ret = simple_parse_of(priv, li);760 if (ret < 0) {761 dev_err_probe(dev, ret, "parse error\n");762 goto err;763 }764 765 } else {766 struct simple_util_info *cinfo;767 struct snd_soc_dai_link_component *cpus;768 struct snd_soc_dai_link_component *codecs;769 struct snd_soc_dai_link_component *platform;770 struct snd_soc_dai_link *dai_link = priv->dai_link;771 struct simple_dai_props *dai_props = priv->dai_props;772 773 ret = -EINVAL;774 775 cinfo = dev->platform_data;776 if (!cinfo) {777 dev_err(dev, "no info for asoc-simple-card\n");778 goto err;779 }780 781 if (!cinfo->name ||782 !cinfo->codec_dai.name ||783 !cinfo->codec ||784 !cinfo->platform ||785 !cinfo->cpu_dai.name) {786 dev_err(dev, "insufficient simple_util_info settings\n");787 goto err;788 }789 790 cpus = dai_link->cpus;791 cpus->dai_name = cinfo->cpu_dai.name;792 793 codecs = dai_link->codecs;794 codecs->name = cinfo->codec;795 codecs->dai_name = cinfo->codec_dai.name;796 797 platform = dai_link->platforms;798 platform->name = cinfo->platform;799 800 card->name = (cinfo->card) ? cinfo->card : cinfo->name;801 dai_link->name = cinfo->name;802 dai_link->stream_name = cinfo->name;803 dai_link->dai_fmt = cinfo->daifmt;804 dai_link->init = simple_util_dai_init;805 memcpy(dai_props->cpu_dai, &cinfo->cpu_dai,806 sizeof(*dai_props->cpu_dai));807 memcpy(dai_props->codec_dai, &cinfo->codec_dai,808 sizeof(*dai_props->codec_dai));809 }810 811 snd_soc_card_set_drvdata(card, priv);812 813 simple_util_debug_info(priv);814 815 ret = devm_snd_soc_register_card(dev, card);816 if (ret < 0)817 goto err;818 819 return 0;820err:821 simple_util_clean_reference(card);822 823 return ret;824}825 826static const struct of_device_id simple_of_match[] = {827 { .compatible = "simple-audio-card", },828 { .compatible = "simple-scu-audio-card",829 .data = (void *)DPCM_SELECTABLE },830 {},831};832MODULE_DEVICE_TABLE(of, simple_of_match);833 834static struct platform_driver simple_card = {835 .driver = {836 .name = "asoc-simple-card",837 .pm = &snd_soc_pm_ops,838 .of_match_table = simple_of_match,839 },840 .probe = simple_probe,841 .remove = simple_util_remove,842};843 844module_platform_driver(simple_card);845 846MODULE_ALIAS("platform:asoc-simple-card");847MODULE_LICENSE("GPL v2");848MODULE_DESCRIPTION("ASoC Simple Sound Card");849MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");850