[mirror_ubuntu-artful-kernel.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  */
static 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",
	.owner = THIS_MODULE,
	.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++) {
		of_node_put(mop500_dai_links[i].cpu_of_node);
		of_node_put(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].platform_of_node = msp_np[i];
		mop500_dai_links[i].platform_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", },
	{},
};
MODULE_DEVICE_TABLE(of, snd_soc_mop500_match);

static struct platform_driver snd_soc_mop500_driver = {
	.driver = {
		.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
e0690385 OL	29	/* Define the whole MOP500 soundcard, linking platform to the codec-drivers */
aba1e2be	30	static struct snd_soc_dai_link mop500_dai_links[] = {
e0690385 OL	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",
651e9268	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",
651e9268	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",
e7c8c589	55	.owner = THIS_MODULE,
e0690385 OL	56	.probe = NULL,
	57	.dai_link = mop500_dai_links,
	58	.num_links = ARRAY_SIZE(mop500_dai_links),
	59	};
	60
39013bd6 LJ	61	static void mop500_of_node_put(void)
	62	{
	63	int i;
	64
	65	for (i = 0; i < 2; i++) {
1679b532 ME	66	of_node_put(mop500_dai_links[i].cpu_of_node);
1679b532 ME	67	of_node_put(mop500_dai_links[i].codec_of_node);
39013bd6 LJ	68	}
	69	}
	70
da794876 BP	71	static int mop500_of_probe(struct platform_device *pdev,
da794876 BP	72	struct device_node *np)
0af541ce LJ	73	{
	74	struct device_node codec_np, msp_np[2];
	75	int i;
	76
	77	msp_np[0] = of_parse_phandle(np, "stericsson,cpu-dai", 0);
	78	msp_np[1] = of_parse_phandle(np, "stericsson,cpu-dai", 1);
	79	codec_np = of_parse_phandle(np, "stericsson,audio-codec", 0);
	80
	81	if (!(msp_np[0] && msp_np[1] && codec_np)) {
	82	dev_err(&pdev->dev, "Phandle missing or invalid\n");
39013bd6	83	mop500_of_node_put();
0af541ce LJ	84	return -EINVAL;
	85	}
	86
	87	for (i = 0; i < 2; i++) {
	88	mop500_dai_links[i].cpu_of_node = msp_np[i];
	89	mop500_dai_links[i].cpu_dai_name = NULL;
651e9268 JH	90	mop500_dai_links[i].platform_of_node = msp_np[i];
651e9268 JH	91	mop500_dai_links[i].platform_name = NULL;
0af541ce LJ	92	mop500_dai_links[i].codec_of_node = codec_np;
	93	mop500_dai_links[i].codec_name = NULL;
	94	}
	95
	96	snd_soc_of_parse_card_name(&mop500_card, "stericsson,card-name");
	97
	98	return 0;
	99	}
39013bd6	100
da794876	101	static int mop500_probe(struct platform_device *pdev)
e0690385	102	{
0af541ce	103	struct device_node *np = pdev->dev.of_node;
e0690385 OL	104	int ret;
e0690385 OL	105
e0690385 OL	106	dev_dbg(&pdev->dev, "%s: Enter.\n", __func__);
	107
	108	mop500_card.dev = &pdev->dev;
	109
0af541ce LJ	110	if (np) {
	111	ret = mop500_of_probe(pdev, np);
	112	if (ret)
	113	return ret;
	114	}
	115
e0690385 OL	116	dev_dbg(&pdev->dev, "%s: Card %s: Set platform drvdata.\n",
	117	__func__, mop500_card.name);
	118	platform_set_drvdata(pdev, &mop500_card);
	119
	120	snd_soc_card_set_drvdata(&mop500_card, NULL);
	121
	122	dev_dbg(&pdev->dev, "%s: Card %s: num_links = %d\n",
	123	__func__, mop500_card.name, mop500_card.num_links);
	124	dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: name = %s\n",
	125	__func__, mop500_card.name, mop500_card.dai_link[0].name);
	126	dev_dbg(&pdev->dev, "%s: Card %s: DAI-link 0: stream_name = %s\n",
	127	__func__, mop500_card.name,
	128	mop500_card.dai_link[0].stream_name);
	129
	130	ret = snd_soc_register_card(&mop500_card);
	131	if (ret)
	132	dev_err(&pdev->dev,
2087a692	133	"Error: snd_soc_register_card failed (%d)!\n", ret);
e0690385 OL	134
	135	return ret;
	136	}
	137
da794876	138	static int mop500_remove(struct platform_device *pdev)
e0690385 OL	139	{
	140	struct snd_soc_card *mop500_card = platform_get_drvdata(pdev);
	141
	142	pr_debug("%s: Enter.\n", __func__);
	143
	144	snd_soc_unregister_card(mop500_card);
	145	mop500_ab8500_remove(mop500_card);
39013bd6	146	mop500_of_node_put();
2087a692	147
e0690385 OL	148	return 0;
	149	}
	150
0af541ce LJ	151	static const struct of_device_id snd_soc_mop500_match[] = {
	152	{ .compatible = "stericsson,snd-soc-mop500", },
	153	{},
	154	};
cfa7a38c	155	MODULE_DEVICE_TABLE(of, snd_soc_mop500_match);
0af541ce	156
e0690385 OL	157	static struct platform_driver snd_soc_mop500_driver = {
e0690385 OL	158	.driver = {
e0690385	159	.name = "snd-soc-mop500",
0af541ce	160	.of_match_table = snd_soc_mop500_match,
e0690385 OL	161	},
e0690385 OL	162	.probe = mop500_probe,
da794876	163	.remove = mop500_remove,
e0690385 OL	164	};
	165
	166	module_platform_driver(snd_soc_mop500_driver);