sound/soc/fsl/efika-audio-fabric.c

   1 /*
   2  * Efika driver for the PSC of the Freescale MPC52xx
   3  * configured as AC97 interface
   4  *
   5  * Copyright 2008 Jon Smirl, Digispeaker
   6  * Author: Jon Smirl <jonsmirl@gmail.com>
   7  *
   8  * This file is licensed under the terms of the GNU General Public License
   9  * version 2. This program is licensed "as is" without any warranty of any
  10  * kind, whether express or implied.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/module.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/device.h>
  17 #include <linux/delay.h>
  18 #include <linux/of_device.h>
  19 #include <linux/of_platform.h>
  20 #include <linux/dma-mapping.h>
  21
  22 #include <sound/core.h>
  23 #include <sound/pcm.h>
  24 #include <sound/pcm_params.h>
  25 #include <sound/initval.h>
  26 #include <sound/soc.h>
  27
  28 #include "mpc5200_dma.h"
  29
  30 #define DRV_NAME "efika-audio-fabric"
  31
  32 static struct snd_soc_dai_link efika_fabric_dai[] = {
  33 {
  34         .name = "AC97",
  35         .stream_name = "AC97 Analog",
  36         .codec_dai_name = "stac9766-hifi-analog",
  37         .cpu_dai_name = "mpc5200-psc-ac97.0",
  38         .platform_name = "mpc5200-pcm-audio",
  39         .codec_name = "stac9766-codec",
  40 },
  41 {
  42         .name = "AC97",
  43         .stream_name = "AC97 IEC958",
  44         .codec_dai_name = "stac9766-hifi-IEC958",
  45         .cpu_dai_name = "mpc5200-psc-ac97.1",
  46         .platform_name = "mpc5200-pcm-audio",
  47         .codec_name = "stac9766-codec",
  48 },
  49 };
  50
  51 static struct snd_soc_card card = {
  52         .name = "Efika",
  53         .owner = THIS_MODULE,
  54         .dai_link = efika_fabric_dai,
  55         .num_links = ARRAY_SIZE(efika_fabric_dai),
  56 };
  57
  58 static __init int efika_fabric_init(void)
  59 {
  60         struct platform_device *pdev;
  61         int rc;
  62
  63         if (!of_machine_is_compatible("bplan,efika"))
  64                 return -ENODEV;
  65
  66         pdev = platform_device_alloc("soc-audio", 1);
  67         if (!pdev) {
  68                 pr_err("efika_fabric_init: platform_device_alloc() failed\n");
  69                 return -ENODEV;
  70         }
  71
  72         platform_set_drvdata(pdev, &card);
  73
  74         rc = platform_device_add(pdev);
  75         if (rc) {
  76                 pr_err("efika_fabric_init: platform_device_add() failed\n");
  77                 platform_device_put(pdev);
  78                 return -ENODEV;
  79         }
  80         return 0;
  81 }
  82
  83 module_init(efika_fabric_init);
  84
  85
  86 MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
  87 MODULE_DESCRIPTION(DRV_NAME ": mpc5200 Efika fabric driver");
  88 MODULE_LICENSE("GPL");
  89