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/*
* 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++) {
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].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", },
{},
};
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);
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