sound/soc/sh/fsi-ak4642.c

   1 /*
   2  * FSI-AK464x sound support for ms7724se
   3  *
   4  * Copyright (C) 2009 Renesas Solutions Corp.
   5  * Kuninori Morimoto <morimoto.kuninori@renesas.com>
   6  *
   7  * This file is subject to the terms and conditions of the GNU General Public
   8  * License.  See the file "COPYING" in the main directory of this archive
   9  * for more details.
  10  */
  11
  12 #include <linux/platform_device.h>
  13 #include <sound/sh_fsi.h>
  14
  15 static int fsi_ak4642_dai_init(struct snd_soc_pcm_runtime *rtd)
  16 {
  17         struct snd_soc_dai *dai = rtd->codec_dai;
  18         int ret;
  19
  20         ret = snd_soc_dai_set_fmt(dai, SND_SOC_DAIFMT_CBM_CFM);
  21         if (ret < 0)
  22                 return ret;
  23
  24         ret = snd_soc_dai_set_sysclk(dai, 0, 11289600, 0);
  25
  26         return ret;
  27 }
  28
  29 static struct snd_soc_dai_link fsi_dai_link = {
  30         .name           = "AK4642",
  31         .stream_name    = "AK4642",
  32         .cpu_dai_name   = "fsia-dai", /* fsi A */
  33         .codec_dai_name = "ak4642-hifi",
  34         .platform_name  = "fsi-pcm-audio",
  35         .codec_name     = "ak4642-codec.0-0012",
  36         .init           = fsi_ak4642_dai_init,
  37         .ops            = NULL,
  38 };
  39
  40 static struct snd_soc_card fsi_soc_card  = {
  41         .name           = "FSI",
  42         .dai_link       = &fsi_dai_link,
  43         .num_links      = 1,
  44 };
  45
  46 static struct platform_device *fsi_snd_device;
  47
  48 static int __init fsi_ak4642_init(void)
  49 {
  50         int ret = -ENOMEM;
  51
  52         fsi_snd_device = platform_device_alloc("soc-audio", FSI_PORT_A);
  53         if (!fsi_snd_device)
  54                 goto out;
  55
  56         platform_set_drvdata(fsi_snd_device, &fsi_soc_card);
  57         ret = platform_device_add(fsi_snd_device);
  58
  59         if (ret)
  60                 platform_device_put(fsi_snd_device);
  61
  62 out:
  63         return ret;
  64 }
  65
  66 static void __exit fsi_ak4642_exit(void)
  67 {
  68         platform_device_unregister(fsi_snd_device);
  69 }
  70
  71 module_init(fsi_ak4642_init);
  72 module_exit(fsi_ak4642_exit);
  73
  74 MODULE_LICENSE("GPL");
  75 MODULE_DESCRIPTION("Generic SH4 FSI-AK4642 sound card");
  76 MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>");