sound/soc/pxa/em-x270.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * SoC audio driver for EM-X270, eXeda and CM-X300
   4  *
   5  * Copyright 2007, 2009 CompuLab, Ltd.
   6  *
   7  * Author: Mike Rapoport <mike@compulab.co.il>
   8  *
   9  * Copied from tosa.c:
  10  * Copyright 2005 Wolfson Microelectronics PLC.
  11  * Copyright 2005 Openedhand Ltd.
  12  *
  13  * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
  14  *          Richard Purdie <richard@openedhand.com>
  15  */
  16
  17 #include <linux/module.h>
  18 #include <linux/moduleparam.h>
  19 #include <linux/device.h>
  20
  21 #include <sound/core.h>
  22 #include <sound/pcm.h>
  23 #include <sound/soc.h>
  24
  25 #include <asm/mach-types.h>
  26 #include <mach/audio.h>
  27
  28 SND_SOC_DAILINK_DEFS(ac97,
  29         DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
  30         DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")),
  31         DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
  32
  33 SND_SOC_DAILINK_DEFS(ac97_aux,
  34         DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
  35         DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")),
  36         DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
  37
  38 static struct snd_soc_dai_link em_x270_dai[] = {
  39         {
  40                 .name = "AC97",
  41                 .stream_name = "AC97 HiFi",
  42                 SND_SOC_DAILINK_REG(ac97),
  43         },
  44         {
  45                 .name = "AC97 Aux",
  46                 .stream_name = "AC97 Aux",
  47                 SND_SOC_DAILINK_REG(ac97_aux),
  48         },
  49 };
  50
  51 static struct snd_soc_card em_x270 = {
  52         .name = "EM-X270",
  53         .owner = THIS_MODULE,
  54         .dai_link = em_x270_dai,
  55         .num_links = ARRAY_SIZE(em_x270_dai),
  56 };
  57
  58 static struct platform_device *em_x270_snd_device;
  59
  60 static int __init em_x270_init(void)
  61 {
  62         int ret;
  63
  64         if (!(machine_is_em_x270() || machine_is_exeda()
  65               || machine_is_cm_x300()))
  66                 return -ENODEV;
  67
  68         em_x270_snd_device = platform_device_alloc("soc-audio", -1);
  69         if (!em_x270_snd_device)
  70                 return -ENOMEM;
  71
  72         platform_set_drvdata(em_x270_snd_device, &em_x270);
  73         ret = platform_device_add(em_x270_snd_device);
  74
  75         if (ret)
  76                 platform_device_put(em_x270_snd_device);
  77
  78         return ret;
  79 }
  80
  81 static void __exit em_x270_exit(void)
  82 {
  83         platform_device_unregister(em_x270_snd_device);
  84 }
  85
  86 module_init(em_x270_init);
  87 module_exit(em_x270_exit);
  88
  89 /* Module information */
  90 MODULE_AUTHOR("Mike Rapoport");
  91 MODULE_DESCRIPTION("ALSA SoC EM-X270, eXeda and CM-X300");
  92 MODULE_LICENSE("GPL");