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/* Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/of_device.h>
#include <sound/core.h>
#include <sound/soc.h>
#include <sound/pcm.h>
static int msm_pcm_hostless_prepare(struct snd_pcm_substream *substream)
{
if (!substream) {
pr_err("%s: invalid params\n", __func__);
return -EINVAL;
}
pm_qos_remove_request(&substream->latency_pm_qos_req);
return 0;
}
static struct snd_pcm_ops msm_pcm_hostless_ops = {
.prepare = msm_pcm_hostless_prepare
};
static struct snd_soc_platform_driver msm_soc_hostless_platform = {
.ops = &msm_pcm_hostless_ops,
};
static int msm_pcm_hostless_probe(struct platform_device *pdev)
{
pr_debug("%s: dev name %s\n", __func__, dev_name(&pdev->dev));
return snd_soc_register_platform(&pdev->dev,
&msm_soc_hostless_platform);
}
static int msm_pcm_hostless_remove(struct platform_device *pdev)
{
snd_soc_unregister_platform(&pdev->dev);
return 0;
}
static const struct of_device_id msm_pcm_hostless_dt_match[] = {
{.compatible = "qcom,msm-pcm-hostless"},
{}
};
static struct platform_driver msm_pcm_hostless_driver = {
.driver = {
.name = "msm-pcm-hostless",
.owner = THIS_MODULE,
.of_match_table = msm_pcm_hostless_dt_match,
},
.probe = msm_pcm_hostless_probe,
.remove = msm_pcm_hostless_remove,
};
static int __init msm_soc_platform_init(void)
{
return platform_driver_register(&msm_pcm_hostless_driver);
}
module_init(msm_soc_platform_init);
static void __exit msm_soc_platform_exit(void)
{
platform_driver_unregister(&msm_pcm_hostless_driver);
}
module_exit(msm_soc_platform_exit);
MODULE_DESCRIPTION("Hostless platform driver");
MODULE_LICENSE("GPL v2");
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