LXR linux/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
  28SND_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
  33SND_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
  38static 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
  51static 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
  58static struct platform_device *em_x270_snd_device;
  59
  60static 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
  81static void __exit em_x270_exit(void)
  82{
  83        platform_device_unregister(em_x270_snd_device);
  84}
  85
  86module_init(em_x270_init);
  87module_exit(em_x270_exit);
  88
  89/* Module information */
  90MODULE_AUTHOR("Mike Rapoport");
  91MODULE_DESCRIPTION("ALSA SoC EM-X270, eXeda and CM-X300");
  92MODULE_LICENSE("GPL");
  93