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