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Linux/sound/soc/cirrus/simone.c

  1 /*
  2  * simone.c -- ASoC audio for Simplemachines Sim.One board
  3  *
  4  * Copyright (c) 2010 Mika Westerberg
  5  *
  6  * Based on snappercl15 machine driver by Ryan Mallon.
  7  *
  8  * This program is free software; you can redistribute it and/or modify
  9  * it under the terms of the GNU General Public License version 2 as
 10  * published by the Free Software Foundation.
 11  */
 12 
 13 #include <linux/init.h>
 14 #include <linux/module.h>
 15 #include <linux/platform_device.h>
 16 
 17 #include <sound/core.h>
 18 #include <sound/pcm.h>
 19 #include <sound/soc.h>
 20 
 21 #include <asm/mach-types.h>
 22 #include <mach/hardware.h>
 23 
 24 static struct snd_soc_dai_link simone_dai = {
 25         .name           = "AC97",
 26         .stream_name    = "AC97 HiFi",
 27         .cpu_dai_name   = "ep93xx-ac97",
 28         .codec_dai_name = "ac97-hifi",
 29         .codec_name     = "ac97-codec",
 30         .platform_name  = "ep93xx-ac97",
 31 };
 32 
 33 static struct snd_soc_card snd_soc_simone = {
 34         .name           = "Sim.One",
 35         .owner          = THIS_MODULE,
 36         .dai_link       = &simone_dai,
 37         .num_links      = 1,
 38 };
 39 
 40 static struct platform_device *simone_snd_ac97_device;
 41 
 42 static int simone_probe(struct platform_device *pdev)
 43 {
 44         struct snd_soc_card *card = &snd_soc_simone;
 45         int ret;
 46 
 47         simone_snd_ac97_device = platform_device_register_simple("ac97-codec",
 48                                                                  -1, NULL, 0);
 49         if (IS_ERR(simone_snd_ac97_device))
 50                 return PTR_ERR(simone_snd_ac97_device);
 51 
 52         card->dev = &pdev->dev;
 53 
 54         ret = snd_soc_register_card(card);
 55         if (ret) {
 56                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
 57                         ret);
 58                 platform_device_unregister(simone_snd_ac97_device);
 59         }
 60 
 61         return ret;
 62 }
 63 
 64 static int simone_remove(struct platform_device *pdev)
 65 {
 66         struct snd_soc_card *card = platform_get_drvdata(pdev);
 67 
 68         snd_soc_unregister_card(card);
 69         platform_device_unregister(simone_snd_ac97_device);
 70 
 71         return 0;
 72 }
 73 
 74 static struct platform_driver simone_driver = {
 75         .driver         = {
 76                 .name   = "simone-audio",
 77                 .owner  = THIS_MODULE,
 78         },
 79         .probe          = simone_probe,
 80         .remove         = simone_remove,
 81 };
 82 
 83 module_platform_driver(simone_driver);
 84 
 85 MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One");
 86 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
 87 MODULE_LICENSE("GPL");
 88 MODULE_ALIAS("platform:simone-audio");
 89 

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