sound/soc/omap/omap-hdmi-card.c

   1 /*
   2  * omap-hdmi-card.c
   3  *
   4  * OMAP ALSA SoC machine driver for TI OMAP HDMI
   5  * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
   6  * Author: Ricardo Neri <ricardo.neri@ti.com>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * version 2 as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  20  * 02110-1301 USA
  21  *
  22  */
  23
  24 #include <linux/module.h>
  25 #include <sound/pcm.h>
  26 #include <sound/soc.h>
  27 #include <asm/mach-types.h>
  28 #include <video/omapdss.h>
  29
  30 #define DRV_NAME "omap-hdmi-audio"
  31
  32 static struct snd_soc_dai_link omap_hdmi_dai = {
  33         .name = "HDMI",
  34         .stream_name = "HDMI",
  35         .cpu_dai_name = "omap-hdmi-audio-dai",
  36         .platform_name = "omap-pcm-audio",
  37         .codec_name = "hdmi-audio-codec",
  38         .codec_dai_name = "hdmi-hifi",
  39 };
  40
  41 static struct snd_soc_card snd_soc_omap_hdmi = {
  42         .name = "OMAPHDMI",
  43         .owner = THIS_MODULE,
  44         .dai_link = &omap_hdmi_dai,
  45         .num_links = 1,
  46 };
  47
  48 static int omap_hdmi_probe(struct platform_device *pdev)
  49 {
  50         struct snd_soc_card *card = &snd_soc_omap_hdmi;
  51         int ret;
  52
  53         card->dev = &pdev->dev;
  54
  55         ret = snd_soc_register_card(card);
  56         if (ret) {
  57                 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
  58                 card->dev = NULL;
  59                 return ret;
  60         }
  61         return 0;
  62 }
  63
  64 static int omap_hdmi_remove(struct platform_device *pdev)
  65 {
  66         struct snd_soc_card *card = platform_get_drvdata(pdev);
  67
  68         snd_soc_unregister_card(card);
  69         card->dev = NULL;
  70         return 0;
  71 }
  72
  73 static struct platform_driver omap_hdmi_driver = {
  74         .driver = {
  75                 .name = DRV_NAME,
  76                 .owner = THIS_MODULE,
  77         },
  78         .probe = omap_hdmi_probe,
  79         .remove = omap_hdmi_remove,
  80 };
  81
  82 module_platform_driver(omap_hdmi_driver);
  83
  84 MODULE_AUTHOR("Ricardo Neri <ricardo.neri@ti.com>");
  85 MODULE_DESCRIPTION("OMAP HDMI machine ASoC driver");
  86 MODULE_LICENSE("GPL");
  87 MODULE_ALIAS("platform:" DRV_NAME);