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 SND_SOC_DAILINK_DEFS(hifi,
  22         DAILINK_COMP_ARRAY(COMP_CPU("ep93xx-ac97")),
  23         DAILINK_COMP_ARRAY(COMP_CODEC("ac97-codec", "ac97-hifi")),
  24         DAILINK_COMP_ARRAY(COMP_PLATFORM("ep93xx-ac97")));
  25
  26 static struct snd_soc_dai_link simone_dai = {
  27         .name           = "AC97",
  28         .stream_name    = "AC97 HiFi",
  29         SND_SOC_DAILINK_REG(hifi),
  30 };
  31
  32 static struct snd_soc_card snd_soc_simone = {
  33         .name           = "Sim.One",
  34         .owner          = THIS_MODULE,
  35         .dai_link       = &simone_dai,
  36         .num_links      = 1,
  37 };
  38
  39 static struct platform_device *simone_snd_ac97_device;
  40
  41 static int simone_probe(struct platform_device *pdev)
  42 {
  43         struct snd_soc_card *card = &snd_soc_simone;
  44         int ret;
  45
  46         simone_snd_ac97_device = platform_device_register_simple("ac97-codec",
  47                                                                  -1, NULL, 0);
  48         if (IS_ERR(simone_snd_ac97_device))
  49                 return PTR_ERR(simone_snd_ac97_device);
  50
  51         card->dev = &pdev->dev;
  52
  53         ret = snd_soc_register_card(card);
  54         if (ret) {
  55                 dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
  56                         ret);
  57                 platform_device_unregister(simone_snd_ac97_device);
  58         }
  59
  60         return ret;
  61 }
  62
  63 static int simone_remove(struct platform_device *pdev)
  64 {
  65         struct snd_soc_card *card = platform_get_drvdata(pdev);
  66
  67         snd_soc_unregister_card(card);
  68         platform_device_unregister(simone_snd_ac97_device);
  69
  70         return 0;
  71 }
  72
  73 static struct platform_driver simone_driver = {
  74         .driver         = {
  75                 .name   = "simone-audio",
  76         },
  77         .probe          = simone_probe,
  78         .remove         = simone_remove,
  79 };
  80
  81 module_platform_driver(simone_driver);
  82
  83 MODULE_DESCRIPTION("ALSA SoC Simplemachines Sim.One");
  84 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
  85 MODULE_LICENSE("GPL");
  86 MODULE_ALIAS("platform:simone-audio");