fsi-ak4642.c
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/*
* FSI-AK464x sound support for ms7724se
*
* Copyright (C) 2009 Renesas Solutions Corp.
* Kuninori Morimoto <morimoto.kuninori@renesas.com>
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/platform_device.h>
#include <linux/module.h>
#include <sound/sh_fsi.h>
struct fsi_ak4642_data {
const char *name;
const char *card;
const char *cpu_dai;
const char *codec;
const char *platform;
int id;
};
static int fsi_ak4642_dai_init(struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_dai *codec = rtd->codec_dai;
struct snd_soc_dai *cpu = rtd->cpu_dai;
int ret;
ret = snd_soc_dai_set_fmt(codec, SND_SOC_DAIFMT_LEFT_J |
SND_SOC_DAIFMT_CBM_CFM);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_sysclk(codec, 0, 11289600, 0);
if (ret < 0)
return ret;
ret = snd_soc_dai_set_fmt(cpu, SND_SOC_DAIFMT_LEFT_J |
SND_SOC_DAIFMT_CBS_CFS);
return ret;
}
static struct snd_soc_dai_link fsi_dai_link = {
.codec_dai_name = "ak4642-hifi",
.init = fsi_ak4642_dai_init,
};
static struct snd_soc_card fsi_soc_card = {
.owner = THIS_MODULE,
.dai_link = &fsi_dai_link,
.num_links = 1,
};
static struct platform_device *fsi_snd_device;
static int fsi_ak4642_probe(struct platform_device *pdev)
{
int ret = -ENOMEM;
struct fsi_ak4642_info *pinfo = pdev->dev.platform_data;
if (!pinfo) {
dev_err(&pdev->dev, "no info for fsi ak4642\n");
goto out;
}
fsi_snd_device = platform_device_alloc("soc-audio", pinfo->id);
if (!fsi_snd_device)
goto out;
fsi_dai_link.name = pinfo->name;
fsi_dai_link.stream_name = pinfo->name;
fsi_dai_link.cpu_dai_name = pinfo->cpu_dai;
fsi_dai_link.platform_name = pinfo->platform;
fsi_dai_link.codec_name = pinfo->codec;
fsi_soc_card.name = pinfo->card;
platform_set_drvdata(fsi_snd_device, &fsi_soc_card);
ret = platform_device_add(fsi_snd_device);
if (ret)
platform_device_put(fsi_snd_device);
out:
return ret;
}
static int fsi_ak4642_remove(struct platform_device *pdev)
{
platform_device_unregister(fsi_snd_device);
return 0;
}
static struct platform_driver fsi_ak4642 = {
.driver = {
.name = "fsi-ak4642-audio",
},
.probe = fsi_ak4642_probe,
.remove = fsi_ak4642_remove,
};
module_platform_driver(fsi_ak4642);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Generic SH4 FSI-AK4642 sound card");
MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>");