5a0a03c5ef
Current method for machine driver to register with the ASoC core is to use snd_soc_register_card() instead of creating a "soc-audio" platform device. In addition we use platform_device_register_simple() to create a platform device for the codec. This function will handle putting and deleting the device automatically which simplifies the error handling in the machine driver. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Reviewed-by: Ryan Mallon <rmallon@gmail.com> Acked-by: Liam Girdwood <lrg@ti.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
100 lines
2.3 KiB
C
100 lines
2.3 KiB
C
/*
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* simone.c -- ASoC audio for Simplemachines Sim.One board
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*
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* Copyright (c) 2010 Mika Westerberg
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*
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* Based on snappercl15 machine driver by Ryan Mallon.
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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 as
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* published by the Free Software Foundation.
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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 <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <asm/mach-types.h>
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#include <mach/hardware.h>
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#include "ep93xx-pcm.h"
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static struct snd_soc_dai_link simone_dai = {
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.name = "AC97",
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.stream_name = "AC97 HiFi",
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.cpu_dai_name = "ep93xx-ac97",
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.codec_dai_name = "ac97-hifi",
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.codec_name = "ac97-codec",
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.platform_name = "ep93xx-pcm-audio",
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};
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static struct snd_soc_card snd_soc_simone = {
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.name = "Sim.One",
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.dai_link = &simone_dai,
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.num_links = 1,
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};
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static struct platform_device *simone_snd_ac97_device;
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static int __devinit simone_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &snd_soc_simone;
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int ret;
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simone_snd_ac97_device = platform_device_register_simple("ac97-codec",
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-1, NULL, 0);
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if (IS_ERR(simone_snd_ac97_device))
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return PTR_ERR(simone_snd_ac97_device);
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card->dev = &pdev->dev;
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ret = snd_soc_register_card(card);
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if (ret) {
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dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
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ret);
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platform_device_unregister(simone_snd_ac97_device);
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}
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return ret;
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}
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static int __devexit simone_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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snd_soc_unregister_card(card);
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platform_device_unregister(simone_snd_ac97_device);
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return 0;
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}
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static struct platform_driver simone_driver = {
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.driver = {
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.name = "simone-audio",
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.owner = THIS_MODULE,
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},
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.probe = simone_probe,
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.remove = __devexit_p(simone_remove),
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};
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static int __init simone_init(void)
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{
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return platform_driver_register(&simone_driver);
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}
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module_init(simone_init);
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static void __exit simone_exit(void)
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{
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platform_driver_unregister(&simone_driver);
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}
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module_exit(simone_exit);
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MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One");
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MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:simone-audio");
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