[mirror_ubuntu-bionic-kernel.git] / sound / soc / generic / simple-card.c

/*
 * ASoC simple sound card support
 *
 * Copyright (C) 2012 Renesas Solutions Corp.
 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/string.h>
#include <sound/simple_card.h>
#include <sound/soc-dai.h>
#include <sound/soc.h>

struct simple_card_data {
	struct snd_soc_card snd_card;
	unsigned int daifmt;
	struct asoc_simple_dai cpu_dai;
	struct asoc_simple_dai codec_dai;
	struct snd_soc_dai_link snd_link;
};

static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai,
				       struct asoc_simple_dai *set)
{
	int ret;

	if (set->fmt) {
		ret = snd_soc_dai_set_fmt(dai, set->fmt);
		if (ret && ret != -ENOTSUPP) {
			dev_err(dai->dev, "simple-card: set_fmt error\n");
			goto err;
		}
	}

	if (set->sysclk) {
		ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
		if (ret && ret != -ENOTSUPP) {
			dev_err(dai->dev, "simple-card: set_sysclk error\n");
			goto err;
		}
	}

	if (set->slots) {
		ret = snd_soc_dai_set_tdm_slot(dai, 0, 0,
						set->slots,
						set->slot_width);
		if (ret && ret != -ENOTSUPP) {
			dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
			goto err;
		}
	}

	ret = 0;

err:
	return ret;
}

static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
{
	struct simple_card_data *priv =
				snd_soc_card_get_drvdata(rtd->card);
	struct snd_soc_dai *codec = rtd->codec_dai;
	struct snd_soc_dai *cpu = rtd->cpu_dai;
	int ret;

	ret = __asoc_simple_card_dai_init(codec, &priv->codec_dai);
	if (ret < 0)
		return ret;

	ret = __asoc_simple_card_dai_init(cpu, &priv->cpu_dai);
	if (ret < 0)
		return ret;

	return 0;
}

static int
asoc_simple_card_sub_parse_of(struct device_node *np,
			      unsigned int daifmt,
			      struct asoc_simple_dai *dai,
			      const struct device_node **p_node,
			      const char **name)
{
	struct device_node *node;
	struct clk *clk;
	int ret;

	/*
	 * get node via "sound-dai = <&phandle port>"
	 * it will be used as xxx_of_node on soc_bind_dai_link()
	 */
	node = of_parse_phandle(np, "sound-dai", 0);
	if (!node)
		return -ENODEV;
	*p_node = node;

	/* get dai->name */
	ret = snd_soc_of_get_dai_name(np, name);
	if (ret < 0)
		return ret;

	/* parse TDM slot */
	ret = snd_soc_of_parse_tdm_slot(np, &dai->slots, &dai->slot_width);
	if (ret)
		return ret;

	/*
	 * bitclock-inversion, frame-inversion
	 * bitclock-master,    frame-master
	 * and specific "format" if it has
	 */
	dai->fmt = snd_soc_of_parse_daifmt(np, NULL);
	dai->fmt |= daifmt;

	/*
	 * dai->sysclk come from
	 *  "clocks = <&xxx>" (if system has common clock)
	 *  or "system-clock-frequency = <xxx>"
	 *  or device's module clock.
	 */
	if (of_property_read_bool(np, "clocks")) {
		clk = of_clk_get(np, 0);
		if (IS_ERR(clk)) {
			ret = PTR_ERR(clk);
			return ret;
		}

		dai->sysclk = clk_get_rate(clk);
	} else if (of_property_read_bool(np, "system-clock-frequency")) {
		of_property_read_u32(np,
				     "system-clock-frequency",
				     &dai->sysclk);
	} else {
		clk = of_clk_get(node, 0);
		if (!IS_ERR(clk))
			dai->sysclk = clk_get_rate(clk);
	}

	return 0;
}

static int asoc_simple_card_parse_of(struct device_node *node,
				     struct simple_card_data *priv,
				     struct device *dev)
{
	struct snd_soc_dai_link *dai_link = priv->snd_card.dai_link;
	struct device_node *np;
	char *name;
	int ret;

	/* parsing the card name from DT */
	snd_soc_of_parse_card_name(&priv->snd_card, "simple-audio-card,name");

	/* get CPU/CODEC common format via simple-audio-card,format */
	priv->daifmt = snd_soc_of_parse_daifmt(node, "simple-audio-card,") &
		(SND_SOC_DAIFMT_FORMAT_MASK | SND_SOC_DAIFMT_INV_MASK);

	/* off-codec widgets */
	if (of_property_read_bool(node, "simple-audio-card,widgets")) {
		ret = snd_soc_of_parse_audio_simple_widgets(&priv->snd_card,
					"simple-audio-card,widgets");
		if (ret)
			return ret;
	}

	/* DAPM routes */
	if (of_property_read_bool(node, "simple-audio-card,routing")) {
		ret = snd_soc_of_parse_audio_routing(&priv->snd_card,
					"simple-audio-card,routing");
		if (ret)
			return ret;
	}

	/* CPU sub-node */
	ret = -EINVAL;
	np = of_get_child_by_name(node, "simple-audio-card,cpu");
	if (np) {
		ret = asoc_simple_card_sub_parse_of(np, priv->daifmt,
						  &priv->cpu_dai,
						  &dai_link->cpu_of_node,
						  &dai_link->cpu_dai_name);
		of_node_put(np);
	}
	if (ret < 0)
		return ret;

	/* CODEC sub-node */
	ret = -EINVAL;
	np = of_get_child_by_name(node, "simple-audio-card,codec");
	if (np) {
		ret = asoc_simple_card_sub_parse_of(np, priv->daifmt,
						  &priv->codec_dai,
						  &dai_link->codec_of_node,
						  &dai_link->codec_dai_name);
		of_node_put(np);
	}
	if (ret < 0)
		return ret;

	if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name)
		return -EINVAL;

	/* card name is created from CPU/CODEC dai name */
	name = devm_kzalloc(dev,
			    strlen(dai_link->cpu_dai_name)   +
			    strlen(dai_link->codec_dai_name) + 2,
			    GFP_KERNEL);
	sprintf(name, "%s-%s", dai_link->cpu_dai_name,
				dai_link->codec_dai_name);
	if (!priv->snd_card.name)
		priv->snd_card.name = name;
	dai_link->name = dai_link->stream_name = name;

	/* simple-card assumes platform == cpu */
	dai_link->platform_of_node = dai_link->cpu_of_node;

	dev_dbg(dev, "card-name : %s\n", name);
	dev_dbg(dev, "platform : %04x\n", priv->daifmt);
	dev_dbg(dev, "cpu : %s / %04x / %d\n",
		dai_link->cpu_dai_name,
		priv->cpu_dai.fmt,
		priv->cpu_dai.sysclk);
	dev_dbg(dev, "codec : %s / %04x / %d\n",
		dai_link->codec_dai_name,
		priv->codec_dai.fmt,
		priv->codec_dai.sysclk);

	/*
	 * soc_bind_dai_link() will check cpu name
	 * after of_node matching if dai_link has cpu_dai_name.
	 * but, it will never match if name was created by fmt_single_name()
	 * remove cpu_dai_name to escape name matching.
	 * see
	 *	fmt_single_name()
	 *	fmt_multiple_name()
	 */
	dai_link->cpu_dai_name = NULL;

	return 0;
}

/* update the reference count of the devices nodes at end of probe */
static int asoc_simple_card_unref(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	struct snd_soc_dai_link *dai_link;
	struct device_node *np;
	int num_links;

	for (num_links = 0, dai_link = card->dai_link;
	     num_links < card->num_links;
	     num_links++, dai_link++) {
		np = (struct device_node *) dai_link->cpu_of_node;
		if (np)
			of_node_put(np);
		np = (struct device_node *) dai_link->codec_of_node;
		if (np)
			of_node_put(np);
	}
	return 0;
}

static int asoc_simple_card_probe(struct platform_device *pdev)
{
	struct simple_card_data *priv;
	struct snd_soc_dai_link *dai_link;
	struct device_node *np = pdev->dev.of_node;
	struct device *dev = &pdev->dev;
	int ret;

	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	if (!priv)
		return -ENOMEM;

	/*
	 * init snd_soc_card
	 */
	priv->snd_card.owner = THIS_MODULE;
	priv->snd_card.dev = dev;
	dai_link = &priv->snd_link;
	priv->snd_card.dai_link = dai_link;
	priv->snd_card.num_links = 1;

	if (np && of_device_is_available(np)) {

		ret = asoc_simple_card_parse_of(np, priv, dev);
		if (ret < 0) {
			if (ret != -EPROBE_DEFER)
				dev_err(dev, "parse error %d\n", ret);
			goto err;
		}
	} else {
		struct asoc_simple_card_info *cinfo;

		cinfo = dev->platform_data;
		if (!cinfo) {
			dev_err(dev, "no info for asoc-simple-card\n");
			return -EINVAL;
		}

		if (!cinfo->name	||
		    !cinfo->codec_dai.name	||
		    !cinfo->codec	||
		    !cinfo->platform	||
		    !cinfo->cpu_dai.name) {
			dev_err(dev, "insufficient asoc_simple_card_info settings\n");
			return -EINVAL;
		}

		priv->snd_card.name	= (cinfo->card) ? cinfo->card : cinfo->name;
		dai_link->name		= cinfo->name;
		dai_link->stream_name	= cinfo->name;
		dai_link->platform_name	= cinfo->platform;
		dai_link->codec_name	= cinfo->codec;
		dai_link->cpu_dai_name	= cinfo->cpu_dai.name;
		dai_link->codec_dai_name = cinfo->codec_dai.name;
		memcpy(&priv->cpu_dai, &cinfo->cpu_dai,
						sizeof(priv->cpu_dai));
		memcpy(&priv->codec_dai, &cinfo->codec_dai,
						sizeof(priv->codec_dai));

		priv->cpu_dai.fmt	|= cinfo->daifmt;
		priv->codec_dai.fmt	|= cinfo->daifmt;
	}

	/*
	 * init snd_soc_dai_link
	 */
	dai_link->init = asoc_simple_card_dai_init;

	snd_soc_card_set_drvdata(&priv->snd_card, priv);

	ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card);

err:
	asoc_simple_card_unref(pdev);
	return ret;
}

static const struct of_device_id asoc_simple_of_match[] = {
	{ .compatible = "simple-audio-card", },
	{},
};
MODULE_DEVICE_TABLE(of, asoc_simple_of_match);

static struct platform_driver asoc_simple_card = {
	.driver = {
		.name	= "asoc-simple-card",
		.owner = THIS_MODULE,
		.of_match_table = asoc_simple_of_match,
	},
	.probe		= asoc_simple_card_probe,
};

module_platform_driver(asoc_simple_card);

MODULE_ALIAS("platform:asoc-simple-card");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("ASoC Simple Sound Card");
MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
Commit	Line	Data
f2390880 KM	1	/*
	2	* ASoC simple sound card support
	3	*
	4	* Copyright (C) 2012 Renesas Solutions Corp.
	5	* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*/
fa558c28	11	#include <linux/clk.h>
6ff62eed	12	#include <linux/device.h>
f2390880	13	#include <linux/module.h>
fa558c28	14	#include <linux/of.h>
f2390880	15	#include <linux/platform_device.h>
ca919fe4	16	#include <linux/string.h>
f2390880	17	#include <sound/simple_card.h>
6ff62eed XL	18	#include <sound/soc-dai.h>
6ff62eed XL	19	#include <sound/soc.h>
f2390880	20
45fce594 JFM	21	struct simple_card_data {
	22	struct snd_soc_card snd_card;
	23	unsigned int daifmt;
	24	struct asoc_simple_dai cpu_dai;
	25	struct asoc_simple_dai codec_dai;
	26	struct snd_soc_dai_link snd_link;
	27	};
	28
a4a2992c	29	static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai,
30d0341e	30	struct asoc_simple_dai *set)
a4a2992c	31	{
4763ebe2	32	int ret;
a4a2992c	33
30d0341e XL	34	if (set->fmt) {
30d0341e XL	35	ret = snd_soc_dai_set_fmt(dai, set->fmt);
4763ebe2 XL	36	if (ret && ret != -ENOTSUPP) {
	37	dev_err(dai->dev, "simple-card: set_fmt error\n");
	38	goto err;
	39	}
e244bb9b KM	40	}
e244bb9b KM	41
4763ebe2	42	if (set->sysclk) {
a4a2992c	43	ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
4763ebe2 XL	44	if (ret && ret != -ENOTSUPP) {
	45	dev_err(dai->dev, "simple-card: set_sysclk error\n");
	46	goto err;
	47	}
	48	}
	49
6ff62eed XL	50	if (set->slots) {
	51	ret = snd_soc_dai_set_tdm_slot(dai, 0, 0,
	52	set->slots,
	53	set->slot_width);
	54	if (ret && ret != -ENOTSUPP) {
	55	dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
	56	goto err;
	57	}
	58	}
	59
4763ebe2	60	ret = 0;
a4a2992c	61
4763ebe2	62	err:
a4a2992c KM	63	return ret;
	64	}
	65
f2390880 KM	66	static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
f2390880 KM	67	{
b367a325	68	struct simple_card_data *priv =
ba194a4d	69	snd_soc_card_get_drvdata(rtd->card);
f2390880 KM	70	struct snd_soc_dai *codec = rtd->codec_dai;
f2390880 KM	71	struct snd_soc_dai *cpu = rtd->cpu_dai;
f2390880 KM	72	int ret;
f2390880 KM	73
30d0341e	74	ret = __asoc_simple_card_dai_init(codec, &priv->codec_dai);
a4a2992c KM	75	if (ret < 0)
a4a2992c KM	76	return ret;
f2390880	77
30d0341e	78	ret = __asoc_simple_card_dai_init(cpu, &priv->cpu_dai);
a4a2992c KM	79	if (ret < 0)
a4a2992c KM	80	return ret;
f2390880 KM	81
	82	return 0;
	83	}
	84
fa558c28 KM	85	static int
fa558c28 KM	86	asoc_simple_card_sub_parse_of(struct device_node *np,
30d0341e	87	unsigned int daifmt,
fa558c28	88	struct asoc_simple_dai *dai,
52008472 JFM	89	const struct device_node **p_node,
52008472 JFM	90	const char **name)
fa558c28	91	{
201a0eac	92	struct device_node *node;
fa558c28 KM	93	struct clk *clk;
	94	int ret;
	95
	96	/*
	97	* get node via "sound-dai = <&phandle port>"
	98	* it will be used as xxx_of_node on soc_bind_dai_link()
	99	*/
201a0eac JFM	100	node = of_parse_phandle(np, "sound-dai", 0);
201a0eac JFM	101	if (!node)
fa558c28	102	return -ENODEV;
201a0eac	103	*p_node = node;
fa558c28 KM	104
fa558c28 KM	105	/* get dai->name */
52008472	106	ret = snd_soc_of_get_dai_name(np, name);
fa558c28	107	if (ret < 0)
e512e001	108	return ret;
fa558c28	109
6ff62eed XL	110	/* parse TDM slot */
	111	ret = snd_soc_of_parse_tdm_slot(np, &dai->slots, &dai->slot_width);
	112	if (ret)
e512e001	113	return ret;
6ff62eed	114
fa558c28 KM	115	/*
	116	* bitclock-inversion, frame-inversion
	117	* bitclock-master, frame-master
	118	* and specific "format" if it has
	119	*/
	120	dai->fmt = snd_soc_of_parse_daifmt(np, NULL);
30d0341e	121	dai->fmt \|= daifmt;
fa558c28 KM	122
	123	/*
	124	* dai->sysclk come from
	125	* "clocks = <&xxx>" (if system has common clock)
	126	* or "system-clock-frequency = <xxx>"
71467e46	127	* or device's module clock.
fa558c28	128	*/
71467e46 XL	129	if (of_property_read_bool(np, "clocks")) {
	130	clk = of_clk_get(np, 0);
	131	if (IS_ERR(clk)) {
	132	ret = PTR_ERR(clk);
e512e001	133	return ret;
71467e46 XL	134	}
	135
	136	dai->sysclk = clk_get_rate(clk);
	137	} else if (of_property_read_bool(np, "system-clock-frequency")) {
fa558c28 KM	138	of_property_read_u32(np,
	139	"system-clock-frequency",
	140	&dai->sysclk);
71467e46	141	} else {
201a0eac	142	clk = of_clk_get(node, 0);
e2a19ac6 XL	143	if (!IS_ERR(clk))
e2a19ac6 XL	144	dai->sysclk = clk_get_rate(clk);
71467e46	145	}
fa558c28	146
e512e001	147	return 0;
fa558c28 KM	148	}
	149
	150	static int asoc_simple_card_parse_of(struct device_node *node,
b367a325	151	struct simple_card_data *priv,
201a0eac	152	struct device *dev)
fa558c28	153	{
b367a325	154	struct snd_soc_dai_link *dai_link = priv->snd_card.dai_link;
fa558c28 KM	155	struct device_node *np;
fa558c28 KM	156	char *name;
d4c22094	157	int ret;
fa558c28	158
2772555b XL	159	/* parsing the card name from DT */
	160	snd_soc_of_parse_card_name(&priv->snd_card, "simple-audio-card,name");
	161
fa558c28	162	/* get CPU/CODEC common format via simple-audio-card,format */
b367a325	163	priv->daifmt = snd_soc_of_parse_daifmt(node, "simple-audio-card,") &
fa558c28 KM	164	(SND_SOC_DAIFMT_FORMAT_MASK \| SND_SOC_DAIFMT_INV_MASK);
fa558c28 KM	165
9d681f5b XL	166	/* off-codec widgets */
	167	if (of_property_read_bool(node, "simple-audio-card,widgets")) {
	168	ret = snd_soc_of_parse_audio_simple_widgets(&priv->snd_card,
	169	"simple-audio-card,widgets");
	170	if (ret)
	171	return ret;
	172	}
	173
d4c22094	174	/* DAPM routes */
8c0b8230	175	if (of_property_read_bool(node, "simple-audio-card,routing")) {
b367a325	176	ret = snd_soc_of_parse_audio_routing(&priv->snd_card,
8c0b8230	177	"simple-audio-card,routing");
f87a3e82 XL	178	if (ret)
	179	return ret;
	180	}
d4c22094	181
fa558c28 KM	182	/* CPU sub-node */
	183	ret = -EINVAL;
	184	np = of_get_child_by_name(node, "simple-audio-card,cpu");
e512e001	185	if (np) {
30d0341e	186	ret = asoc_simple_card_sub_parse_of(np, priv->daifmt,
b367a325	187	&priv->cpu_dai,
52008472 JFM	188	&dai_link->cpu_of_node,
52008472 JFM	189	&dai_link->cpu_dai_name);
e512e001 JFM	190	of_node_put(np);
e512e001 JFM	191	}
fa558c28 KM	192	if (ret < 0)
	193	return ret;
	194
	195	/* CODEC sub-node */
	196	ret = -EINVAL;
	197	np = of_get_child_by_name(node, "simple-audio-card,codec");
e512e001	198	if (np) {
30d0341e	199	ret = asoc_simple_card_sub_parse_of(np, priv->daifmt,
b367a325	200	&priv->codec_dai,
52008472 JFM	201	&dai_link->codec_of_node,
52008472 JFM	202	&dai_link->codec_dai_name);
e512e001 JFM	203	of_node_put(np);
e512e001 JFM	204	}
fa558c28 KM	205	if (ret < 0)
	206	return ret;
	207
52008472	208	if (!dai_link->cpu_dai_name \|\| !dai_link->codec_dai_name)
dd41e0c4 XL	209	return -EINVAL;
dd41e0c4 XL	210
fa558c28 KM	211	/* card name is created from CPU/CODEC dai name */
fa558c28 KM	212	name = devm_kzalloc(dev,
52008472 JFM	213	strlen(dai_link->cpu_dai_name) +
52008472 JFM	214	strlen(dai_link->codec_dai_name) + 2,
fa558c28	215	GFP_KERNEL);
52008472 JFM	216	sprintf(name, "%s-%s", dai_link->cpu_dai_name,
52008472 JFM	217	dai_link->codec_dai_name);
2772555b XL	218	if (!priv->snd_card.name)
2772555b XL	219	priv->snd_card.name = name;
5ca8ba41	220	dai_link->name = dai_link->stream_name = name;
fa558c28 KM	221
fa558c28 KM	222	/* simple-card assumes platform == cpu */
5ca8ba41	223	dai_link->platform_of_node = dai_link->cpu_of_node;
fa558c28	224
2bee9914	225	dev_dbg(dev, "card-name : %s\n", name);
b367a325	226	dev_dbg(dev, "platform : %04x\n", priv->daifmt);
fa558c28	227	dev_dbg(dev, "cpu : %s / %04x / %d\n",
52008472	228	dai_link->cpu_dai_name,
b367a325 JFM	229	priv->cpu_dai.fmt,
b367a325 JFM	230	priv->cpu_dai.sysclk);
fa558c28	231	dev_dbg(dev, "codec : %s / %04x / %d\n",
52008472	232	dai_link->codec_dai_name,
b367a325 JFM	233	priv->codec_dai.fmt,
b367a325 JFM	234	priv->codec_dai.sysclk);
fa558c28	235
f687d900 KM	236	/*
	237	* soc_bind_dai_link() will check cpu name
	238	* after of_node matching if dai_link has cpu_dai_name.
	239	* but, it will never match if name was created by fmt_single_name()
	240	* remove cpu_dai_name to escape name matching.
	241	* see
	242	* fmt_single_name()
	243	* fmt_multiple_name()
	244	*/
	245	dai_link->cpu_dai_name = NULL;
	246
fa558c28 KM	247	return 0;
	248	}
	249
e512e001 JFM	250	/* update the reference count of the devices nodes at end of probe */
	251	static int asoc_simple_card_unref(struct platform_device *pdev)
	252	{
	253	struct snd_soc_card *card = platform_get_drvdata(pdev);
	254	struct snd_soc_dai_link *dai_link;
	255	struct device_node *np;
	256	int num_links;
	257
	258	for (num_links = 0, dai_link = card->dai_link;
	259	num_links < card->num_links;
	260	num_links++, dai_link++) {
	261	np = (struct device_node *) dai_link->cpu_of_node;
	262	if (np)
	263	of_node_put(np);
	264	np = (struct device_node *) dai_link->codec_of_node;
	265	if (np)
	266	of_node_put(np);
	267	}
	268	return 0;
	269	}
	270
f2390880 KM	271	static int asoc_simple_card_probe(struct platform_device *pdev)
f2390880 KM	272	{
45fce594	273	struct simple_card_data *priv;
5ca8ba41	274	struct snd_soc_dai_link *dai_link;
fa558c28	275	struct device_node *np = pdev->dev.of_node;
f89983ef	276	struct device *dev = &pdev->dev;
ca919fe4	277	int ret;
f2390880	278
ca65b492 JFM	279	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
ca65b492 JFM	280	if (!priv)
ca919fe4 XL	281	return -ENOMEM;
ca919fe4 XL	282
201a0eac JFM	283	/*
	284	* init snd_soc_card
	285	*/
ca65b492 JFM	286	priv->snd_card.owner = THIS_MODULE;
	287	priv->snd_card.dev = dev;
	288	dai_link = &priv->snd_link;
	289	priv->snd_card.dai_link = dai_link;
	290	priv->snd_card.num_links = 1;
201a0eac	291
fa558c28	292	if (np && of_device_is_available(np)) {
ca919fe4	293
ca65b492	294	ret = asoc_simple_card_parse_of(np, priv, dev);
ca919fe4 XL	295	if (ret < 0) {
	296	if (ret != -EPROBE_DEFER)
	297	dev_err(dev, "parse error %d\n", ret);
e512e001	298	goto err;
fa558c28 KM	299	}
fa558c28 KM	300	} else {
ca65b492 JFM	301	struct asoc_simple_card_info *cinfo;
	302
	303	cinfo = dev->platform_data;
	304	if (!cinfo) {
34787d0a XL	305	dev_err(dev, "no info for asoc-simple-card\n");
	306	return -EINVAL;
	307	}
fa558c28	308
7722f830	309	if (!cinfo->name \|\|
7722f830 JFM	310	!cinfo->codec_dai.name \|\|
	311	!cinfo->codec \|\|
	312	!cinfo->platform \|\|
	313	!cinfo->cpu_dai.name) {
	314	dev_err(dev, "insufficient asoc_simple_card_info settings\n");
	315	return -EINVAL;
	316	}
2bee9914	317
12ffa6fc	318	priv->snd_card.name = (cinfo->card) ? cinfo->card : cinfo->name;
5ca8ba41 JFM	319	dai_link->name = cinfo->name;
	320	dai_link->stream_name = cinfo->name;
	321	dai_link->platform_name = cinfo->platform;
	322	dai_link->codec_name = cinfo->codec;
52008472 JFM	323	dai_link->cpu_dai_name = cinfo->cpu_dai.name;
52008472 JFM	324	dai_link->codec_dai_name = cinfo->codec_dai.name;
ca65b492 JFM	325	memcpy(&priv->cpu_dai, &cinfo->cpu_dai,
	326	sizeof(priv->cpu_dai));
	327	memcpy(&priv->codec_dai, &cinfo->codec_dai,
	328	sizeof(priv->codec_dai));
81985bd6 KM	329
	330	priv->cpu_dai.fmt \|= cinfo->daifmt;
	331	priv->codec_dai.fmt \|= cinfo->daifmt;
f2390880 KM	332	}
	333
	334	/*
	335	* init snd_soc_dai_link
	336	*/
5ca8ba41	337	dai_link->init = asoc_simple_card_dai_init;
f2390880	338
ca65b492	339	snd_soc_card_set_drvdata(&priv->snd_card, priv);
f2390880	340
e512e001 JFM	341	ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card);
	342
	343	err:
	344	asoc_simple_card_unref(pdev);
	345	return ret;
f2390880 KM	346	}
f2390880 KM	347
fa558c28 KM	348	static const struct of_device_id asoc_simple_of_match[] = {
	349	{ .compatible = "simple-audio-card", },
	350	{},
	351	};
	352	MODULE_DEVICE_TABLE(of, asoc_simple_of_match);
	353
f2390880 KM	354	static struct platform_driver asoc_simple_card = {
	355	.driver = {
	356	.name = "asoc-simple-card",
c445be35	357	.owner = THIS_MODULE,
fa558c28	358	.of_match_table = asoc_simple_of_match,
f2390880 KM	359	},
f2390880 KM	360	.probe = asoc_simple_card_probe,
f2390880 KM	361	};
	362
	363	module_platform_driver(asoc_simple_card);
	364
c445be35	365	MODULE_ALIAS("platform:asoc-simple-card");
f2390880 KM	366	MODULE_LICENSE("GPL");
	367	MODULE_DESCRIPTION("ASoC Simple Sound Card");
	368	MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");