[deliverable/linux.git] / sound / soc / ux500 / mop500.c

/*
 * Copyright (C) ST-Ericsson SA 2012
 *
 * Author: Ola Lilja (ola.o.lilja@stericsson.com)
 *         for ST-Ericsson.
 *
 * License terms:
 *
 * 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 <asm/mach-types.h>

#include <linux/module.h>
#include <linux/io.h>
#include <linux/spi/spi.h>
#include <linux/of.h>

#include <sound/soc.h>
#include <sound/initval.h>

#include "ux500_pcm.h"
#include "ux500_msp_dai.h"

#include "mop500_ab8500.h"

/* Define the whole MOP500 soundcard, linking platform to the codec-drivers  */
struct snd_soc_dai_link mop500_dai_links[] = {
	{
		.name = "ab8500_0",
		.stream_name = "ab8500_0",
		.cpu_dai_name = "ux500-msp-i2s.1",
		.codec_dai_name = "ab8500-codec-dai.0",
		.platform_name = "ux500-msp-i2s.1",
		.codec_name = "ab8500-codec.0",
		.init = mop500_ab8500_machine_init,
		.ops = mop500_ab8500_ops,
	},
	{
		.name = "ab8500_1",
		.stream_name = "ab8500_1",
		.cpu_dai_name = "ux500-msp-i2s.3",
		.codec_dai_name = "ab8500-codec-dai.1",
		.platform_name = "ux500-msp-i2s.3",
		.codec_name = "ab8500-codec.0",
		.init = NULL,
		.ops = mop500_ab8500_ops,
	},
};

static struct snd_soc_card mop500_card = {
	.name = "MOP500-card",
	.probe = NULL,
	.dai_link = mop500_dai_links,
	.num_links = ARRAY_SIZE(mop500_dai_links),
};

static void mop500_of_node_put(void)
{
	int i;

	for (i = 0; i < 2; i++) {
		if (mop500_dai_links[i].cpu_of_node)
			of_node_put((struct device_node *)
				mop500_dai_links[i].cpu_of_node);
		if (mop500_dai_links[i].codec_of_node)
			of_node_put((struct device_node *)
				mop500_dai_links[i].codec_of_node);
	}
}

static int mop500_of_probe(struct platform_device *pdev,
			   struct device_node *np)
{
	struct device_node *codec_np, *msp_np[2];
	int i;

	msp_np[0] = of_parse_phandle(np, "stericsson,cpu-dai", 0);
	msp_np[1] = of_parse_phandle(np, "stericsson,cpu-dai", 1);
	codec_np  = of_parse_phandle(np, "stericsson,audio-codec", 0);

	if (!(msp_np[0] && msp_np[1] && codec_np)) {
		dev_err(&pdev->dev, "Phandle missing or invalid\n");
		mop500_of_node_put();
		return -EINVAL;
	}

	for (i = 0; i < 2; i++) {
		mop500_dai_links[i].cpu_of_node = msp_np[i];
		mop500_dai_links[i].cpu_dai_name = NULL;
		mop500_dai_links[i].codec_of_node = codec_np;
		mop500_dai_links[i].codec_name = NULL;
	}

	snd_soc_of_parse_card_name(&mop500_card, "stericsson,card-name");

	return 0;
}

static int mop500_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	int ret;

	dev_dbg(&pdev->dev, "%s: Enter.\n", __func__);

	mop500_card.dev = &pdev->dev;

	if (np) {
		ret = mop500_of_probe(pdev, np);
		if (ret)
			return ret;
	}

	dev_dbg(&pdev->dev, "%s: Card %s: Set platform drvdata.\n",
		__func__, mop500_card.name);
	platform_set_drvdata(pdev, &mop500_card);

	snd_soc_card_set_drvdata(&mop500_card, NULL);

	dev_dbg(&pdev->dev, "%s: Card %s: num_links = %d\n",
		__func__, mop500_card.name, mop500_card.num_links);
	dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: name = %s\n",
		__func__, mop500_card.name, mop500_card.dai_link[0].name);
	dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: stream_name = %s\n",
		__func__, mop500_card.name,
		mop500_card.dai_link[0].stream_name);

	ret = snd_soc_register_card(&mop500_card);
	if (ret)
		dev_err(&pdev->dev,
			"Error: snd_soc_register_card failed (%d)!\n", ret);

	return ret;
}

static int mop500_remove(struct platform_device *pdev)
{
	struct snd_soc_card *mop500_card = platform_get_drvdata(pdev);

	pr_debug("%s: Enter.\n", __func__);

	snd_soc_unregister_card(mop500_card);
	mop500_ab8500_remove(mop500_card);
	mop500_of_node_put();

	return 0;
}

static const struct of_device_id snd_soc_mop500_match[] = {
	{ .compatible = "stericsson,snd-soc-mop500", },
	{},
};

static struct platform_driver snd_soc_mop500_driver = {
	.driver = {
		.owner = THIS_MODULE,
		.name = "snd-soc-mop500",
		.of_match_table = snd_soc_mop500_match,
	},
	.probe = mop500_probe,
	.remove = mop500_remove,
};

module_platform_driver(snd_soc_mop500_driver);
Commit	Line	Data
e0690385 OL	1	/*
	2	* Copyright (C) ST-Ericsson SA 2012
	3	*
	4	* Author: Ola Lilja (ola.o.lilja@stericsson.com)
	5	* for ST-Ericsson.
	6	*
	7	* License terms:
	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License version 2 as published
	11	* by the Free Software Foundation.
	12	*/
	13
	14	#include <asm/mach-types.h>
	15
	16	#include <linux/module.h>
	17	#include <linux/io.h>
	18	#include <linux/spi/spi.h>
0af541ce	19	#include <linux/of.h>
e0690385 OL	20
	21	#include <sound/soc.h>
	22	#include <sound/initval.h>
	23
	24	#include "ux500_pcm.h"
	25	#include "ux500_msp_dai.h"
	26
9fc4cd82	27	#include "mop500_ab8500.h"
e0690385 OL	28
	29	/* Define the whole MOP500 soundcard, linking platform to the codec-drivers */
	30	struct snd_soc_dai_link mop500_dai_links[] = {
	31	{
	32	.name = "ab8500_0",
	33	.stream_name = "ab8500_0",
	34	.cpu_dai_name = "ux500-msp-i2s.1",
	35	.codec_dai_name = "ab8500-codec-dai.0",
1428c20f	36	.platform_name = "ux500-msp-i2s.1",
e0690385 OL	37	.codec_name = "ab8500-codec.0",
	38	.init = mop500_ab8500_machine_init,
	39	.ops = mop500_ab8500_ops,
	40	},
	41	{
	42	.name = "ab8500_1",
	43	.stream_name = "ab8500_1",
	44	.cpu_dai_name = "ux500-msp-i2s.3",
	45	.codec_dai_name = "ab8500-codec-dai.1",
1428c20f	46	.platform_name = "ux500-msp-i2s.3",
e0690385 OL	47	.codec_name = "ab8500-codec.0",
	48	.init = NULL,
	49	.ops = mop500_ab8500_ops,
	50	},
	51	};
	52
	53	static struct snd_soc_card mop500_card = {
	54	.name = "MOP500-card",
	55	.probe = NULL,
	56	.dai_link = mop500_dai_links,
	57	.num_links = ARRAY_SIZE(mop500_dai_links),
	58	};
	59
39013bd6 LJ	60	static void mop500_of_node_put(void)
	61	{
	62	int i;
	63
	64	for (i = 0; i < 2; i++) {
	65	if (mop500_dai_links[i].cpu_of_node)
	66	of_node_put((struct device_node *)
	67	mop500_dai_links[i].cpu_of_node);
	68	if (mop500_dai_links[i].codec_of_node)
	69	of_node_put((struct device_node *)
	70	mop500_dai_links[i].codec_of_node);
	71	}
	72	}
	73
da794876 BP	74	static int mop500_of_probe(struct platform_device *pdev,
da794876 BP	75	struct device_node *np)
0af541ce LJ	76	{
	77	struct device_node codec_np, msp_np[2];
	78	int i;
	79
	80	msp_np[0] = of_parse_phandle(np, "stericsson,cpu-dai", 0);
	81	msp_np[1] = of_parse_phandle(np, "stericsson,cpu-dai", 1);
	82	codec_np = of_parse_phandle(np, "stericsson,audio-codec", 0);
	83
	84	if (!(msp_np[0] && msp_np[1] && codec_np)) {
	85	dev_err(&pdev->dev, "Phandle missing or invalid\n");
39013bd6	86	mop500_of_node_put();
0af541ce LJ	87	return -EINVAL;
	88	}
	89
	90	for (i = 0; i < 2; i++) {
	91	mop500_dai_links[i].cpu_of_node = msp_np[i];
	92	mop500_dai_links[i].cpu_dai_name = NULL;
	93	mop500_dai_links[i].codec_of_node = codec_np;
	94	mop500_dai_links[i].codec_name = NULL;
	95	}
	96
	97	snd_soc_of_parse_card_name(&mop500_card, "stericsson,card-name");
	98
	99	return 0;
	100	}
39013bd6	101
da794876	102	static int mop500_probe(struct platform_device *pdev)
e0690385	103	{
0af541ce	104	struct device_node *np = pdev->dev.of_node;
e0690385 OL	105	int ret;
e0690385 OL	106
e0690385 OL	107	dev_dbg(&pdev->dev, "%s: Enter.\n", __func__);
	108
	109	mop500_card.dev = &pdev->dev;
	110
0af541ce LJ	111	if (np) {
	112	ret = mop500_of_probe(pdev, np);
	113	if (ret)
	114	return ret;
	115	}
	116
e0690385 OL	117	dev_dbg(&pdev->dev, "%s: Card %s: Set platform drvdata.\n",
	118	__func__, mop500_card.name);
	119	platform_set_drvdata(pdev, &mop500_card);
	120
	121	snd_soc_card_set_drvdata(&mop500_card, NULL);
	122
	123	dev_dbg(&pdev->dev, "%s: Card %s: num_links = %d\n",
	124	__func__, mop500_card.name, mop500_card.num_links);
	125	dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: name = %s\n",
	126	__func__, mop500_card.name, mop500_card.dai_link[0].name);
	127	dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: stream_name = %s\n",
	128	__func__, mop500_card.name,
	129	mop500_card.dai_link[0].stream_name);
	130
	131	ret = snd_soc_register_card(&mop500_card);
	132	if (ret)
	133	dev_err(&pdev->dev,
2087a692	134	"Error: snd_soc_register_card failed (%d)!\n", ret);
e0690385 OL	135
	136	return ret;
	137	}
	138
da794876	139	static int mop500_remove(struct platform_device *pdev)
e0690385 OL	140	{
	141	struct snd_soc_card *mop500_card = platform_get_drvdata(pdev);
	142
	143	pr_debug("%s: Enter.\n", __func__);
	144
	145	snd_soc_unregister_card(mop500_card);
	146	mop500_ab8500_remove(mop500_card);
39013bd6	147	mop500_of_node_put();
2087a692	148
e0690385 OL	149	return 0;
	150	}
	151
0af541ce LJ	152	static const struct of_device_id snd_soc_mop500_match[] = {
	153	{ .compatible = "stericsson,snd-soc-mop500", },
	154	{},
	155	};
	156
e0690385 OL	157	static struct platform_driver snd_soc_mop500_driver = {
	158	.driver = {
	159	.owner = THIS_MODULE,
	160	.name = "snd-soc-mop500",
0af541ce	161	.of_match_table = snd_soc_mop500_match,
e0690385 OL	162	},
e0690385 OL	163	.probe = mop500_probe,
da794876	164	.remove = mop500_remove,
e0690385 OL	165	};
	166
	167	module_platform_driver(snd_soc_mop500_driver);