[linux-2.6-block.git] / sound / soc / qcom / common.c

// SPDX-License-Identifier: GPL-2.0
// Copyright (c) 2018, Linaro Limited.
// Copyright (c) 2018, The Linux Foundation. All rights reserved.

#include <linux/module.h>
#include "common.h"

int qcom_snd_parse_of(struct snd_soc_card *card)
{
	struct device_node *np;
	struct device_node *codec = NULL;
	struct device_node *platform = NULL;
	struct device_node *cpu = NULL;
	struct device *dev = card->dev;
	struct snd_soc_dai_link *link;
	struct of_phandle_args args;
	struct snd_soc_dai_link_component *dlc;
	int ret, num_links;

	ret = snd_soc_of_parse_card_name(card, "model");
	if (ret) {
		dev_err(dev, "Error parsing card name: %d\n", ret);
		return ret;
	}

	/* DAPM routes */
	if (of_property_read_bool(dev->of_node, "audio-routing")) {
		ret = snd_soc_of_parse_audio_routing(card,
				"audio-routing");
		if (ret)
			return ret;
	}

	/* Populate links */
	num_links = of_get_child_count(dev->of_node);

	/* Allocate the DAI link array */
	card->dai_link = kcalloc(num_links, sizeof(*link), GFP_KERNEL);
	if (!card->dai_link)
		return -ENOMEM;

	card->num_links = num_links;
	link = card->dai_link;

	for_each_child_of_node(dev->of_node, np) {
		dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
		if (!dlc)
			return -ENOMEM;

		link->cpus	= &dlc[0];
		link->platforms	= &dlc[1];

		link->num_cpus		= 1;
		link->num_platforms	= 1;

		cpu = of_get_child_by_name(np, "cpu");
		platform = of_get_child_by_name(np, "platform");
		codec = of_get_child_by_name(np, "codec");

		if (!cpu) {
			dev_err(dev, "Can't find cpu DT node\n");
			ret = -EINVAL;
			goto err;
		}

		ret = of_parse_phandle_with_args(cpu, "sound-dai",
					"#sound-dai-cells", 0, &args);
		if (ret) {
			dev_err(card->dev, "error getting cpu phandle\n");
			goto err;
		}
		link->cpus->of_node = args.np;
		link->id = args.args[0];

		ret = snd_soc_of_get_dai_name(cpu, &link->cpus->dai_name);
		if (ret) {
			dev_err(card->dev, "error getting cpu dai name\n");
			goto err;
		}

		if (codec && platform) {
			link->platforms->of_node = of_parse_phandle(platform,
					"sound-dai",
					0);
			if (!link->platforms->of_node) {
				dev_err(card->dev, "platform dai not found\n");
				ret = -EINVAL;
				goto err;
			}

			ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
			if (ret < 0) {
				dev_err(card->dev, "codec dai not found\n");
				goto err;
			}
			link->no_pcm = 1;
			link->ignore_pmdown_time = 1;
		} else {
			dlc = devm_kzalloc(dev, sizeof(*dlc), GFP_KERNEL);
			if (!dlc)
				return -ENOMEM;

			link->codecs	 = dlc;
			link->num_codecs = 1;

			link->platforms->of_node = link->cpus->of_node;
			link->codecs->dai_name = "snd-soc-dummy-dai";
			link->codecs->name = "snd-soc-dummy";
			link->dynamic = 1;
		}

		link->ignore_suspend = 1;
		ret = of_property_read_string(np, "link-name", &link->name);
		if (ret) {
			dev_err(card->dev, "error getting codec dai_link name\n");
			goto err;
		}

		link->nonatomic = 1;
		link->dpcm_playback = 1;
		link->dpcm_capture = 1;
		link->stream_name = link->name;
		link++;

		of_node_put(cpu);
		of_node_put(codec);
		of_node_put(platform);
	}

	return 0;
err:
	of_node_put(np);
	of_node_put(cpu);
	of_node_put(codec);
	of_node_put(platform);
	kfree(card->dai_link);
	return ret;
}
EXPORT_SYMBOL(qcom_snd_parse_of);

MODULE_LICENSE("GPL v2");
Commit	Line	Data
c25e295c R	1	// SPDX-License-Identifier: GPL-2.0
	2	// Copyright (c) 2018, Linaro Limited.
	3	// Copyright (c) 2018, The Linux Foundation. All rights reserved.
	4
	5	#include <linux/module.h>
	6	#include "common.h"
	7
	8	int qcom_snd_parse_of(struct snd_soc_card *card)
	9	{
	10	struct device_node *np;
	11	struct device_node *codec = NULL;
	12	struct device_node *platform = NULL;
	13	struct device_node *cpu = NULL;
	14	struct device *dev = card->dev;
	15	struct snd_soc_dai_link *link;
67fd1437	16	struct of_phandle_args args;
1e36ea36	17	struct snd_soc_dai_link_component *dlc;
c25e295c R	18	int ret, num_links;
	19
	20	ret = snd_soc_of_parse_card_name(card, "model");
	21	if (ret) {
	22	dev_err(dev, "Error parsing card name: %d\n", ret);
	23	return ret;
	24	}
	25
	26	/* DAPM routes */
	27	if (of_property_read_bool(dev->of_node, "audio-routing")) {
	28	ret = snd_soc_of_parse_audio_routing(card,
	29	"audio-routing");
	30	if (ret)
	31	return ret;
	32	}
	33
	34	/* Populate links */
	35	num_links = of_get_child_count(dev->of_node);
	36
	37	/* Allocate the DAI link array */
	38	card->dai_link = kcalloc(num_links, sizeof(*link), GFP_KERNEL);
	39	if (!card->dai_link)
	40	return -ENOMEM;
	41
	42	card->num_links = num_links;
	43	link = card->dai_link;
1e36ea36	44
c25e295c	45	for_each_child_of_node(dev->of_node, np) {
16395cee BA	46	dlc = devm_kzalloc(dev, 2 * sizeof(*dlc), GFP_KERNEL);
	47	if (!dlc)
	48	return -ENOMEM;
1e36ea36	49
16395cee BA	50	link->cpus = &dlc[0];
16395cee BA	51	link->platforms = &dlc[1];
1e36ea36	52
16395cee BA	53	link->num_cpus = 1;
16395cee BA	54	link->num_platforms = 1;
1e36ea36	55
c25e295c	56	cpu = of_get_child_by_name(np, "cpu");
70b77321 TI	57	platform = of_get_child_by_name(np, "platform");
	58	codec = of_get_child_by_name(np, "codec");
	59
c25e295c R	60	if (!cpu) {
	61	dev_err(dev, "Can't find cpu DT node\n");
	62	ret = -EINVAL;
	63	goto err;
	64	}
	65
67fd1437 R	66	ret = of_parse_phandle_with_args(cpu, "sound-dai",
	67	"#sound-dai-cells", 0, &args);
	68	if (ret) {
c25e295c	69	dev_err(card->dev, "error getting cpu phandle\n");
c25e295c R	70	goto err;
c25e295c R	71	}
1e36ea36	72	link->cpus->of_node = args.np;
67fd1437	73	link->id = args.args[0];
c25e295c	74
1e36ea36	75	ret = snd_soc_of_get_dai_name(cpu, &link->cpus->dai_name);
c25e295c R	76	if (ret) {
	77	dev_err(card->dev, "error getting cpu dai name\n");
	78	goto err;
	79	}
	80
c25e295c	81	if (codec && platform) {
1e36ea36	82	link->platforms->of_node = of_parse_phandle(platform,
c25e295c R	83	"sound-dai",
c25e295c R	84	0);
1e36ea36	85	if (!link->platforms->of_node) {
c25e295c R	86	dev_err(card->dev, "platform dai not found\n");
	87	ret = -EINVAL;
	88	goto err;
	89	}
	90
	91	ret = snd_soc_of_get_dai_link_codecs(dev, codec, link);
	92	if (ret < 0) {
	93	dev_err(card->dev, "codec dai not found\n");
	94	goto err;
	95	}
	96	link->no_pcm = 1;
	97	link->ignore_pmdown_time = 1;
	98	} else {
1e36ea36 KM	99	dlc = devm_kzalloc(dev, sizeof(*dlc), GFP_KERNEL);
	100	if (!dlc)
	101	return -ENOMEM;
	102
	103	link->codecs = dlc;
	104	link->num_codecs = 1;
	105
0751154f	106	link->platforms->of_node = link->cpus->of_node;
1e36ea36 KM	107	link->codecs->dai_name = "snd-soc-dummy-dai";
1e36ea36 KM	108	link->codecs->name = "snd-soc-dummy";
c25e295c R	109	link->dynamic = 1;
	110	}
	111
	112	link->ignore_suspend = 1;
	113	ret = of_property_read_string(np, "link-name", &link->name);
	114	if (ret) {
	115	dev_err(card->dev, "error getting codec dai_link name\n");
	116	goto err;
	117	}
	118
c054b416	119	link->nonatomic = 1;
c25e295c R	120	link->dpcm_playback = 1;
	121	link->dpcm_capture = 1;
	122	link->stream_name = link->name;
	123	link++;
70b77321 TI	124
	125	of_node_put(cpu);
	126	of_node_put(codec);
	127	of_node_put(platform);
c25e295c R	128	}
	129
	130	return 0;
	131	err:
70b77321	132	of_node_put(np);
c25e295c R	133	of_node_put(cpu);
	134	of_node_put(codec);
	135	of_node_put(platform);
	136	kfree(card->dai_link);
	137	return ret;
	138	}
	139	EXPORT_SYMBOL(qcom_snd_parse_of);
	140
	141	MODULE_LICENSE("GPL v2");