1 // SPDX-License-Identifier: GPL-2.0
5 // Copyright (c) 2016 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
8 #include <linux/gpio.h>
9 #include <linux/gpio/consumer.h>
10 #include <linux/module.h>
12 #include <linux/of_graph.h>
13 #include <sound/jack.h>
14 #include <sound/pcm_params.h>
15 #include <sound/simple_card_utils.h>
17 static void asoc_simple_fixup_sample_fmt(struct asoc_simple_data *data,
18 struct snd_pcm_hw_params *params)
21 struct snd_mask *mask = hw_param_mask(params,
22 SNDRV_PCM_HW_PARAM_FORMAT);
26 } of_sample_fmt_table[] = {
27 { "s8", SNDRV_PCM_FORMAT_S8},
28 { "s16_le", SNDRV_PCM_FORMAT_S16_LE},
29 { "s24_le", SNDRV_PCM_FORMAT_S24_LE},
30 { "s24_3le", SNDRV_PCM_FORMAT_S24_3LE},
31 { "s32_le", SNDRV_PCM_FORMAT_S32_LE},
34 for (i = 0; i < ARRAY_SIZE(of_sample_fmt_table); i++) {
35 if (!strcmp(data->convert_sample_format,
36 of_sample_fmt_table[i].fmt)) {
38 snd_mask_set(mask, of_sample_fmt_table[i].val);
44 void asoc_simple_parse_convert(struct device_node *np,
46 struct asoc_simple_data *data)
53 /* sampling rate convert */
54 snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-rate");
55 of_property_read_u32(np, prop, &data->convert_rate);
57 /* channels transfer */
58 snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels");
59 of_property_read_u32(np, prop, &data->convert_channels);
61 /* convert sample format */
62 snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-sample-format");
63 of_property_read_string(np, prop, &data->convert_sample_format);
65 EXPORT_SYMBOL_GPL(asoc_simple_parse_convert);
68 * asoc_simple_is_convert_required() - Query if HW param conversion was requested
71 * Returns true if any HW param conversion was requested for this DAI link with
72 * any "convert-xxx" properties.
74 bool asoc_simple_is_convert_required(const struct asoc_simple_data *data)
76 return data->convert_rate ||
77 data->convert_channels ||
78 data->convert_sample_format;
80 EXPORT_SYMBOL_GPL(asoc_simple_is_convert_required);
82 int asoc_simple_parse_daifmt(struct device *dev,
83 struct device_node *node,
84 struct device_node *codec,
88 struct device_node *bitclkmaster = NULL;
89 struct device_node *framemaster = NULL;
92 daifmt = snd_soc_daifmt_parse_format(node, prefix);
94 snd_soc_daifmt_parse_clock_provider_as_phandle(node, prefix, &bitclkmaster, &framemaster);
95 if (!bitclkmaster && !framemaster) {
97 * No dai-link level and master setting was not found from
98 * sound node level, revert back to legacy DT parsing and
99 * take the settings from codec node.
101 dev_dbg(dev, "Revert to legacy daifmt parsing\n");
103 daifmt |= snd_soc_daifmt_parse_clock_provider_as_flag(codec, NULL);
105 daifmt |= snd_soc_daifmt_clock_provider_from_bitmap(
106 ((codec == bitclkmaster) << 4) | (codec == framemaster));
109 of_node_put(bitclkmaster);
110 of_node_put(framemaster);
116 EXPORT_SYMBOL_GPL(asoc_simple_parse_daifmt);
118 int asoc_simple_parse_tdm_width_map(struct device *dev, struct device_node *np,
119 struct asoc_simple_dai *dai)
121 u32 *array_values, *p;
124 if (!of_property_read_bool(np, "dai-tdm-slot-width-map"))
127 n = of_property_count_elems_of_size(np, "dai-tdm-slot-width-map", sizeof(u32));
129 dev_err(dev, "Invalid number of cells for dai-tdm-slot-width-map\n");
133 dai->tdm_width_map = devm_kcalloc(dev, n, sizeof(*dai->tdm_width_map), GFP_KERNEL);
134 if (!dai->tdm_width_map)
137 array_values = kcalloc(n, sizeof(*array_values), GFP_KERNEL);
141 ret = of_property_read_u32_array(np, "dai-tdm-slot-width-map", array_values, n);
143 dev_err(dev, "Could not read dai-tdm-slot-width-map: %d\n", ret);
148 for (i = 0; i < n / 3; ++i) {
149 dai->tdm_width_map[i].sample_bits = *p++;
150 dai->tdm_width_map[i].slot_width = *p++;
151 dai->tdm_width_map[i].slot_count = *p++;
154 dai->n_tdm_widths = i;
161 EXPORT_SYMBOL_GPL(asoc_simple_parse_tdm_width_map);
163 int asoc_simple_set_dailink_name(struct device *dev,
164 struct snd_soc_dai_link *dai_link,
165 const char *fmt, ...)
172 name = devm_kvasprintf(dev, GFP_KERNEL, fmt, ap);
178 dai_link->name = name;
179 dai_link->stream_name = name;
184 EXPORT_SYMBOL_GPL(asoc_simple_set_dailink_name);
186 int asoc_simple_parse_card_name(struct snd_soc_card *card,
194 /* Parse the card name from DT */
195 ret = snd_soc_of_parse_card_name(card, "label");
196 if (ret < 0 || !card->name) {
199 snprintf(prop, sizeof(prop), "%sname", prefix);
200 ret = snd_soc_of_parse_card_name(card, prop);
205 if (!card->name && card->dai_link)
206 card->name = card->dai_link->name;
210 EXPORT_SYMBOL_GPL(asoc_simple_parse_card_name);
212 static int asoc_simple_clk_enable(struct asoc_simple_dai *dai)
215 return clk_prepare_enable(dai->clk);
220 static void asoc_simple_clk_disable(struct asoc_simple_dai *dai)
223 clk_disable_unprepare(dai->clk);
226 int asoc_simple_parse_clk(struct device *dev,
227 struct device_node *node,
228 struct asoc_simple_dai *simple_dai,
229 struct snd_soc_dai_link_component *dlc)
235 * Parse dai->sysclk come from "clocks = <&xxx>"
236 * (if system has common clock)
237 * or "system-clock-frequency = <xxx>"
238 * or device's module clock.
240 clk = devm_get_clk_from_child(dev, node, NULL);
241 simple_dai->clk_fixed = of_property_read_bool(
242 node, "system-clock-fixed");
244 simple_dai->sysclk = clk_get_rate(clk);
246 simple_dai->clk = clk;
247 } else if (!of_property_read_u32(node, "system-clock-frequency", &val)) {
248 simple_dai->sysclk = val;
249 simple_dai->clk_fixed = true;
251 clk = devm_get_clk_from_child(dev, dlc->of_node, NULL);
253 simple_dai->sysclk = clk_get_rate(clk);
256 if (of_property_read_bool(node, "system-clock-direction-out"))
257 simple_dai->clk_direction = SND_SOC_CLOCK_OUT;
261 EXPORT_SYMBOL_GPL(asoc_simple_parse_clk);
263 static int asoc_simple_check_fixed_sysclk(struct device *dev,
264 struct asoc_simple_dai *dai,
265 unsigned int *fixed_sysclk)
267 if (dai->clk_fixed) {
268 if (*fixed_sysclk && *fixed_sysclk != dai->sysclk) {
269 dev_err(dev, "inconsistent fixed sysclk rates (%u vs %u)\n",
270 *fixed_sysclk, dai->sysclk);
273 *fixed_sysclk = dai->sysclk;
279 int asoc_simple_startup(struct snd_pcm_substream *substream)
281 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
282 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
283 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
284 struct asoc_simple_dai *dai;
285 unsigned int fixed_sysclk = 0;
289 for_each_prop_dai_cpu(props, i1, dai) {
290 ret = asoc_simple_clk_enable(dai);
293 ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk);
298 for_each_prop_dai_codec(props, i2, dai) {
299 ret = asoc_simple_clk_enable(dai);
302 ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk);
307 if (fixed_sysclk && props->mclk_fs) {
308 unsigned int fixed_rate = fixed_sysclk / props->mclk_fs;
310 if (fixed_sysclk % props->mclk_fs) {
311 dev_err(rtd->dev, "fixed sysclk %u not divisible by mclk_fs %u\n",
312 fixed_sysclk, props->mclk_fs);
316 ret = snd_pcm_hw_constraint_minmax(substream->runtime, SNDRV_PCM_HW_PARAM_RATE,
317 fixed_rate, fixed_rate);
325 for_each_prop_dai_codec(props, i, dai) {
328 asoc_simple_clk_disable(dai);
331 for_each_prop_dai_cpu(props, i, dai) {
334 asoc_simple_clk_disable(dai);
338 EXPORT_SYMBOL_GPL(asoc_simple_startup);
340 void asoc_simple_shutdown(struct snd_pcm_substream *substream)
342 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
343 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
344 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
345 struct asoc_simple_dai *dai;
348 for_each_prop_dai_cpu(props, i, dai) {
349 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, i);
351 if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(cpu_dai))
352 snd_soc_dai_set_sysclk(cpu_dai,
353 0, 0, SND_SOC_CLOCK_OUT);
355 asoc_simple_clk_disable(dai);
357 for_each_prop_dai_codec(props, i, dai) {
358 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, i);
360 if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(codec_dai))
361 snd_soc_dai_set_sysclk(codec_dai,
362 0, 0, SND_SOC_CLOCK_IN);
364 asoc_simple_clk_disable(dai);
367 EXPORT_SYMBOL_GPL(asoc_simple_shutdown);
369 static int asoc_simple_set_clk_rate(struct device *dev,
370 struct asoc_simple_dai *simple_dai,
376 if (simple_dai->clk_fixed && rate != simple_dai->sysclk) {
377 dev_err(dev, "dai %s invalid clock rate %lu\n", simple_dai->name, rate);
381 if (!simple_dai->clk)
384 if (clk_get_rate(simple_dai->clk) == rate)
387 return clk_set_rate(simple_dai->clk, rate);
390 static int asoc_simple_set_tdm(struct snd_soc_dai *dai,
391 struct asoc_simple_dai *simple_dai,
392 struct snd_pcm_hw_params *params)
394 int sample_bits = params_width(params);
395 int slot_width, slot_count;
398 if (!simple_dai || !simple_dai->tdm_width_map)
401 slot_width = simple_dai->slot_width;
402 slot_count = simple_dai->slots;
405 slot_width = sample_bits;
407 for (i = 0; i < simple_dai->n_tdm_widths; ++i) {
408 if (simple_dai->tdm_width_map[i].sample_bits == sample_bits) {
409 slot_width = simple_dai->tdm_width_map[i].slot_width;
410 slot_count = simple_dai->tdm_width_map[i].slot_count;
415 ret = snd_soc_dai_set_tdm_slot(dai,
416 simple_dai->tx_slot_mask,
417 simple_dai->rx_slot_mask,
420 if (ret && ret != -ENOTSUPP) {
421 dev_err(dai->dev, "simple-card: set_tdm_slot error: %d\n", ret);
428 int asoc_simple_hw_params(struct snd_pcm_substream *substream,
429 struct snd_pcm_hw_params *params)
431 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
432 struct asoc_simple_dai *pdai;
433 struct snd_soc_dai *sdai;
434 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
435 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
436 unsigned int mclk, mclk_fs = 0;
440 mclk_fs = props->mclk_fs;
443 struct snd_soc_component *component;
444 mclk = params_rate(params) * mclk_fs;
446 for_each_prop_dai_codec(props, i, pdai) {
447 ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk);
452 for_each_prop_dai_cpu(props, i, pdai) {
453 ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk);
458 /* Ensure sysclk is set on all components in case any
459 * (such as platform components) are missed by calls to
460 * snd_soc_dai_set_sysclk.
462 for_each_rtd_components(rtd, i, component) {
463 ret = snd_soc_component_set_sysclk(component, 0, 0,
464 mclk, SND_SOC_CLOCK_IN);
465 if (ret && ret != -ENOTSUPP)
469 for_each_rtd_codec_dais(rtd, i, sdai) {
470 ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_IN);
471 if (ret && ret != -ENOTSUPP)
475 for_each_rtd_cpu_dais(rtd, i, sdai) {
476 ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_OUT);
477 if (ret && ret != -ENOTSUPP)
482 for_each_prop_dai_codec(props, i, pdai) {
483 sdai = asoc_rtd_to_codec(rtd, i);
484 ret = asoc_simple_set_tdm(sdai, pdai, params);
489 for_each_prop_dai_cpu(props, i, pdai) {
490 sdai = asoc_rtd_to_cpu(rtd, i);
491 ret = asoc_simple_set_tdm(sdai, pdai, params);
498 EXPORT_SYMBOL_GPL(asoc_simple_hw_params);
500 int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
501 struct snd_pcm_hw_params *params)
503 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
504 struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
505 struct asoc_simple_data *data = &dai_props->adata;
506 struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
507 struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
509 if (data->convert_rate)
511 rate->max = data->convert_rate;
513 if (data->convert_channels)
515 channels->max = data->convert_channels;
517 if (data->convert_sample_format)
518 asoc_simple_fixup_sample_fmt(data, params);
522 EXPORT_SYMBOL_GPL(asoc_simple_be_hw_params_fixup);
524 static int asoc_simple_init_dai(struct snd_soc_dai *dai,
525 struct asoc_simple_dai *simple_dai)
532 if (simple_dai->sysclk) {
533 ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk,
534 simple_dai->clk_direction);
535 if (ret && ret != -ENOTSUPP) {
536 dev_err(dai->dev, "simple-card: set_sysclk error\n");
541 if (simple_dai->slots) {
542 ret = snd_soc_dai_set_tdm_slot(dai,
543 simple_dai->tx_slot_mask,
544 simple_dai->rx_slot_mask,
546 simple_dai->slot_width);
547 if (ret && ret != -ENOTSUPP) {
548 dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
556 static inline int asoc_simple_component_is_codec(struct snd_soc_component *component)
558 return component->driver->endianness;
561 static int asoc_simple_init_for_codec2codec(struct snd_soc_pcm_runtime *rtd,
562 struct simple_dai_props *dai_props)
564 struct snd_soc_dai_link *dai_link = rtd->dai_link;
565 struct snd_soc_component *component;
566 struct snd_soc_pcm_stream *c2c_params;
567 struct snd_pcm_hardware hw;
570 /* Do nothing if it already has Codec2Codec settings */
571 if (dai_link->c2c_params)
574 /* Do nothing if it was DPCM :: BE */
575 if (dai_link->no_pcm)
579 for_each_rtd_components(rtd, i, component) {
580 if (!asoc_simple_component_is_codec(component))
584 /* Assumes the capabilities are the same for all supported streams */
585 for_each_pcm_streams(stream) {
586 ret = snd_soc_runtime_calc_hw(rtd, &hw, stream);
592 dev_err(rtd->dev, "simple-card: no valid dai_link params\n");
596 c2c_params = devm_kzalloc(rtd->dev, sizeof(*c2c_params), GFP_KERNEL);
600 c2c_params->formats = hw.formats;
601 c2c_params->rates = hw.rates;
602 c2c_params->rate_min = hw.rate_min;
603 c2c_params->rate_max = hw.rate_max;
604 c2c_params->channels_min = hw.channels_min;
605 c2c_params->channels_max = hw.channels_max;
607 dai_link->c2c_params = c2c_params;
608 dai_link->num_c2c_params = 1;
613 int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd)
615 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
616 struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
617 struct asoc_simple_dai *dai;
620 for_each_prop_dai_codec(props, i, dai) {
621 ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, i), dai);
625 for_each_prop_dai_cpu(props, i, dai) {
626 ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, i), dai);
631 ret = asoc_simple_init_for_codec2codec(rtd, props);
637 EXPORT_SYMBOL_GPL(asoc_simple_dai_init);
639 void asoc_simple_canonicalize_platform(struct snd_soc_dai_link_component *platforms,
640 struct snd_soc_dai_link_component *cpus)
643 * Assumes Platform == CPU
645 * Some CPU might be using soc-generic-dmaengine-pcm. This means CPU and Platform
646 * are different Component, but are sharing same component->dev.
648 * Let's assume Platform is same as CPU if it doesn't identify Platform on DT.
650 * simple-card.c :: simple_count_noml()
652 if (!platforms->of_node)
653 snd_soc_dlc_use_cpu_as_platform(platforms, cpus);
655 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform);
657 void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus,
661 * In soc_bind_dai_link() will check cpu name after
662 * of_node matching if dai_link has cpu_dai_name.
663 * but, it will never match if name was created by
664 * fmt_single_name() remove cpu_dai_name if cpu_args
667 * fmt_multiple_name()
670 cpus->dai_name = NULL;
672 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu);
674 void asoc_simple_clean_reference(struct snd_soc_card *card)
676 struct snd_soc_dai_link *dai_link;
677 struct snd_soc_dai_link_component *cpu;
678 struct snd_soc_dai_link_component *codec;
681 for_each_card_prelinks(card, i, dai_link) {
682 for_each_link_cpus(dai_link, j, cpu)
683 of_node_put(cpu->of_node);
684 for_each_link_codecs(dai_link, j, codec)
685 of_node_put(codec->of_node);
688 EXPORT_SYMBOL_GPL(asoc_simple_clean_reference);
690 int asoc_simple_parse_routing(struct snd_soc_card *card,
693 struct device_node *node = card->dev->of_node;
699 snprintf(prop, sizeof(prop), "%s%s", prefix, "routing");
701 if (!of_property_read_bool(node, prop))
704 return snd_soc_of_parse_audio_routing(card, prop);
706 EXPORT_SYMBOL_GPL(asoc_simple_parse_routing);
708 int asoc_simple_parse_widgets(struct snd_soc_card *card,
711 struct device_node *node = card->dev->of_node;
717 snprintf(prop, sizeof(prop), "%s%s", prefix, "widgets");
719 if (of_property_read_bool(node, prop))
720 return snd_soc_of_parse_audio_simple_widgets(card, prop);
722 /* no widgets is not error */
725 EXPORT_SYMBOL_GPL(asoc_simple_parse_widgets);
727 int asoc_simple_parse_pin_switches(struct snd_soc_card *card,
735 snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches");
737 return snd_soc_of_parse_pin_switches(card, prop);
739 EXPORT_SYMBOL_GPL(asoc_simple_parse_pin_switches);
741 int asoc_simple_init_jack(struct snd_soc_card *card,
742 struct asoc_simple_jack *sjack,
743 int is_hp, char *prefix,
746 struct device *dev = card->dev;
747 struct gpio_desc *desc;
757 sjack->gpio.gpio = -ENOENT;
760 snprintf(prop, sizeof(prop), "%shp-det", prefix);
761 pin_name = pin ? pin : "Headphones";
762 gpio_name = "Headphone detection";
763 mask = SND_JACK_HEADPHONE;
765 snprintf(prop, sizeof(prop), "%smic-det", prefix);
766 pin_name = pin ? pin : "Mic Jack";
767 gpio_name = "Mic detection";
768 mask = SND_JACK_MICROPHONE;
771 desc = gpiod_get_optional(dev, prop, GPIOD_IN);
772 error = PTR_ERR_OR_ZERO(desc);
777 error = gpiod_set_consumer_name(desc, gpio_name);
781 sjack->pin.pin = pin_name;
782 sjack->pin.mask = mask;
784 sjack->gpio.name = gpio_name;
785 sjack->gpio.report = mask;
786 sjack->gpio.desc = desc;
787 sjack->gpio.debounce_time = 150;
789 snd_soc_card_jack_new_pins(card, pin_name, mask, &sjack->jack,
792 snd_soc_jack_add_gpios(&sjack->jack, 1, &sjack->gpio);
797 EXPORT_SYMBOL_GPL(asoc_simple_init_jack);
799 int asoc_simple_init_aux_jacks(struct asoc_simple_priv *priv, char *prefix)
801 struct snd_soc_card *card = simple_priv_to_card(priv);
802 struct snd_soc_component *component;
803 int found_jack_index = 0;
811 for_each_card_auxs(card, component) {
812 type = snd_soc_component_get_jack_type(component);
819 priv->aux_jacks = devm_kcalloc(card->dev, num,
820 sizeof(struct snd_soc_jack), GFP_KERNEL);
821 if (!priv->aux_jacks)
824 for_each_card_auxs(card, component) {
826 struct snd_soc_jack *jack;
828 if (found_jack_index >= num)
831 type = snd_soc_component_get_jack_type(component);
836 jack = &(priv->aux_jacks[found_jack_index++]);
837 snprintf(id, sizeof(id), "%s-jack", component->name);
838 ret = snd_soc_card_jack_new(card, id, type, jack);
842 (void)snd_soc_component_set_jack(component, jack, NULL);
846 EXPORT_SYMBOL_GPL(asoc_simple_init_aux_jacks);
848 int asoc_simple_init_priv(struct asoc_simple_priv *priv,
849 struct link_info *li)
851 struct snd_soc_card *card = simple_priv_to_card(priv);
852 struct device *dev = simple_priv_to_dev(priv);
853 struct snd_soc_dai_link *dai_link;
854 struct simple_dai_props *dai_props;
855 struct asoc_simple_dai *dais;
856 struct snd_soc_dai_link_component *dlcs;
857 struct snd_soc_codec_conf *cconf = NULL;
858 int i, dai_num = 0, dlc_num = 0, cnf_num = 0;
860 dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL);
861 dai_link = devm_kcalloc(dev, li->link, sizeof(*dai_link), GFP_KERNEL);
862 if (!dai_props || !dai_link)
867 * dlcs (= CPU+Codec+Platform)
869 for (i = 0; i < li->link; i++) {
870 int cc = li->num[i].cpus + li->num[i].codecs;
873 dlc_num += cc + li->num[i].platforms;
875 if (!li->num[i].cpus)
876 cnf_num += li->num[i].codecs;
879 dais = devm_kcalloc(dev, dai_num, sizeof(*dais), GFP_KERNEL);
880 dlcs = devm_kcalloc(dev, dlc_num, sizeof(*dlcs), GFP_KERNEL);
885 cconf = devm_kcalloc(dev, cnf_num, sizeof(*cconf), GFP_KERNEL);
890 dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
891 li->link, dai_num, cnf_num);
893 priv->dai_props = dai_props;
894 priv->dai_link = dai_link;
897 priv->codec_conf = cconf;
899 card->dai_link = priv->dai_link;
900 card->num_links = li->link;
901 card->codec_conf = cconf;
902 card->num_configs = cnf_num;
904 for (i = 0; i < li->link; i++) {
905 if (li->num[i].cpus) {
907 dai_link[i].cpus = dlcs;
908 dai_props[i].num.cpus =
909 dai_link[i].num_cpus = li->num[i].cpus;
910 dai_props[i].cpu_dai = dais;
912 dlcs += li->num[i].cpus;
913 dais += li->num[i].cpus;
915 /* DPCM Be's CPU = dummy */
916 dai_link[i].cpus = &asoc_dummy_dlc;
917 dai_props[i].num.cpus =
918 dai_link[i].num_cpus = 1;
921 if (li->num[i].codecs) {
923 dai_link[i].codecs = dlcs;
924 dai_props[i].num.codecs =
925 dai_link[i].num_codecs = li->num[i].codecs;
926 dai_props[i].codec_dai = dais;
928 dlcs += li->num[i].codecs;
929 dais += li->num[i].codecs;
931 if (!li->num[i].cpus) {
932 /* DPCM Be's Codec */
933 dai_props[i].codec_conf = cconf;
934 cconf += li->num[i].codecs;
937 /* DPCM Fe's Codec = dummy */
938 dai_link[i].codecs = &asoc_dummy_dlc;
939 dai_props[i].num.codecs =
940 dai_link[i].num_codecs = 1;
943 if (li->num[i].platforms) {
945 dai_link[i].platforms = dlcs;
946 dai_props[i].num.platforms =
947 dai_link[i].num_platforms = li->num[i].platforms;
949 dlcs += li->num[i].platforms;
951 /* Doesn't have Platform */
952 dai_link[i].platforms = NULL;
953 dai_props[i].num.platforms =
954 dai_link[i].num_platforms = 0;
960 EXPORT_SYMBOL_GPL(asoc_simple_init_priv);
962 int asoc_simple_remove(struct platform_device *pdev)
964 struct snd_soc_card *card = platform_get_drvdata(pdev);
966 asoc_simple_clean_reference(card);
970 EXPORT_SYMBOL_GPL(asoc_simple_remove);
972 int asoc_graph_card_probe(struct snd_soc_card *card)
974 struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(card);
977 ret = asoc_simple_init_hp(card, &priv->hp_jack, NULL);
981 ret = asoc_simple_init_mic(card, &priv->mic_jack, NULL);
987 EXPORT_SYMBOL_GPL(asoc_graph_card_probe);
989 int asoc_graph_is_ports0(struct device_node *np)
991 struct device_node *port, *ports, *ports0, *top;
994 /* np is "endpoint" or "port" */
995 if (of_node_name_eq(np, "endpoint")) {
996 port = of_get_parent(np);
1002 ports = of_get_parent(port);
1003 top = of_get_parent(ports);
1004 ports0 = of_get_child_by_name(top, "ports");
1006 ret = ports0 == ports;
1010 of_node_put(ports0);
1015 EXPORT_SYMBOL_GPL(asoc_graph_is_ports0);
1017 static int graph_get_dai_id(struct device_node *ep)
1019 struct device_node *node;
1020 struct device_node *endpoint;
1021 struct of_endpoint info;
1025 /* use driver specified DAI ID if exist */
1026 ret = snd_soc_get_dai_id(ep);
1027 if (ret != -ENOTSUPP)
1030 /* use endpoint/port reg if exist */
1031 ret = of_graph_parse_endpoint(ep, &info);
1034 * Because it will count port/endpoint if it doesn't have "reg".
1035 * But, we can't judge whether it has "no reg", or "reg = <0>"
1036 * only of_graph_parse_endpoint().
1037 * We need to check "reg" property
1039 if (of_property_present(ep, "reg"))
1042 node = of_get_parent(ep);
1043 ret = of_property_present(node, "reg");
1048 node = of_graph_get_port_parent(ep);
1051 * Non HDMI sound case, counting port/endpoint on its DT
1052 * is enough. Let's count it.
1056 for_each_endpoint_of_node(node, endpoint) {
1070 int asoc_graph_parse_dai(struct device *dev, struct device_node *ep,
1071 struct snd_soc_dai_link_component *dlc, int *is_single_link)
1073 struct device_node *node;
1074 struct of_phandle_args args = {};
1075 struct snd_soc_dai *dai;
1081 node = of_graph_get_port_parent(ep);
1084 * Try to find from DAI node
1087 dai = snd_soc_get_dai_via_args(&args);
1089 dlc->dai_name = snd_soc_dai_name_get(dai);
1090 dlc->dai_args = snd_soc_copy_dai_args(dev, &args);
1099 args.args[0] = graph_get_dai_id(ep);
1100 args.args_count = (of_graph_get_endpoint_count(node) > 1);
1105 * Here, dlc->dai_name is pointer to CPU/Codec DAI name.
1106 * If user unbinded CPU or Codec driver, but not for Sound Card,
1107 * dlc->dai_name is keeping unbinded CPU or Codec
1110 * If user re-bind CPU or Codec driver again, ALSA SoC will try
1111 * to rebind Card via snd_soc_try_rebind_card(), but because of
1112 * above reason, it might can't bind Sound Card.
1113 * Because Sound Card is pointing to released dai_name pointer.
1115 * To avoid this rebind Card issue,
1116 * 1) It needs to alloc memory to keep dai_name eventhough
1117 * CPU or Codec driver was unbinded, or
1118 * 2) user need to rebind Sound Card everytime
1119 * if he unbinded CPU or Codec.
1121 ret = snd_soc_get_dlc(&args, dlc);
1129 *is_single_link = of_graph_get_endpoint_count(node) == 1;
1133 EXPORT_SYMBOL_GPL(asoc_graph_parse_dai);
1135 /* Module information */
1136 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1137 MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");
1138 MODULE_LICENSE("GPL v2");