sound/soc/cirrus/simone.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * simone.c -- ASoC audio for Simplemachines Sim.One board
   4  *
   5  * Copyright (c) 2010 Mika Westerberg
   6  *
   7  * Based on snappercl15 machine driver by Ryan Mallon.
   8  */
   9
  10 #include <linux/init.h>
  11 #include <linux/module.h>
  12 #include <linux/platform_device.h>
  13 #include <linux/soc/cirrus/ep93xx.h>
  14
  15 #include <sound/core.h>
  16 #include <sound/pcm.h>
  17 #include <sound/soc.h>
  18
  19 #include <asm/mach-types.h>
  20
  21 static struct snd_soc_dai_link simone_dai = {
  22         .name           = "AC97",
  23         .stream_name    = "AC97 HiFi",
  24         .cpu_dai_name   = "ep93xx-ac97",
  25         .codec_dai_name = "ac97-hifi",
  26         .codec_name     = "ac97-codec",
  27         .platform_name  = "ep93xx-ac97",
  28 };
  29
  30 static struct snd_soc_card snd_soc_simone = {
  31         .name           = "Sim.One",
  32         .owner          = THIS_MODULE,
  33         .dai_link       = &simone_dai,
  34         .num_links      = 1,
  35 };
  36
  37 static struct platform_device *simone_snd_ac97_device;
  38
  39 static int simone_probe(struct platform_device *pdev)
  40 {
  41         struct snd_soc_card *card = &snd_soc_simone;
  42         int ret;
  43
  44         simone_snd_ac97_device = platform_device_register_simple("ac97-codec",
  45                                                                  -1, NULL, 0);
  46         if (IS_ERR(simone_snd_ac97_device))
  47                 return PTR_ERR(simone_snd_ac97_device);
  48
  49         card->dev = &pdev->dev;
  50
  51         ret = snd_soc_register_card(card);
  52         if (ret) {
  53                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
  54                         ret);
  55                 platform_device_unregister(simone_snd_ac97_device);
  56         }
  57
  58         return ret;
  59 }
  60
  61 static int simone_remove(struct platform_device *pdev)
  62 {
  63         struct snd_soc_card *card = platform_get_drvdata(pdev);
  64
  65         snd_soc_unregister_card(card);
  66         platform_device_unregister(simone_snd_ac97_device);
  67
  68         return 0;
  69 }
  70
  71 static struct platform_driver simone_driver = {
  72         .driver         = {
  73                 .name   = "simone-audio",
  74         },
  75         .probe          = simone_probe,
  76         .remove         = simone_remove,
  77 };
  78
  79 module_platform_driver(simone_driver);
  80
  81 MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One");
  82 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
  83 MODULE_LICENSE("GPL");
  84 MODULE_ALIAS("platform:simone-audio");