release/src-rt-6.x.4708/linux/linux-2.6.36/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 #include <../sound/soc/codecs/ak4642.h>
  15
  16 static int fsi_ak4642_dai_init(struct snd_soc_codec *codec)
  17 {
  18         int ret;
  19
  20         ret = snd_soc_dai_set_fmt(&ak4642_dai, SND_SOC_DAIFMT_CBM_CFM);
  21         if (ret < 0)
  22                 return ret;
  23
  24         ret = snd_soc_dai_set_sysclk(&ak4642_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        = &fsi_soc_dai[FSI_PORT_A],
  33         .codec_dai      = &ak4642_dai,
  34         .init           = fsi_ak4642_dai_init,
  35         .ops            = NULL,
  36 };
  37
  38 static struct snd_soc_card fsi_soc_card  = {
  39         .name           = "FSI",
  40         .platform       = &fsi_soc_platform,
  41         .dai_link       = &fsi_dai_link,
  42         .num_links      = 1,
  43 };
  44
  45 static struct snd_soc_device fsi_snd_devdata = {
  46         .card           = &fsi_soc_card,
  47         .codec_dev      = &soc_codec_dev_ak4642,
  48 };
  49
  50 static struct platform_device *fsi_snd_device;
  51
  52 static int __init fsi_ak4642_init(void)
  53 {
  54         int ret = -ENOMEM;
  55
  56         fsi_snd_device = platform_device_alloc("soc-audio", FSI_PORT_A);
  57         if (!fsi_snd_device)
  58                 goto out;
  59
  60         platform_set_drvdata(fsi_snd_device,
  61                              &fsi_snd_devdata);
  62         fsi_snd_devdata.dev = &fsi_snd_device->dev;
  63         ret = platform_device_add(fsi_snd_device);
  64
  65         if (ret)
  66                 platform_device_put(fsi_snd_device);
  67
  68 out:
  69         return ret;
  70 }
  71
  72 static void __exit fsi_ak4642_exit(void)
  73 {
  74         platform_device_unregister(fsi_snd_device);
  75 }
  76
  77 module_init(fsi_ak4642_init);
  78 module_exit(fsi_ak4642_exit);
  79
  80 MODULE_LICENSE("GPL");
  81 MODULE_DESCRIPTION("Generic SH4 FSI-AK4642 sound card");
  82 MODULE_AUTHOR("Kuninori Morimoto <morimoto.kuninori@renesas.com>");