linux-stable/sound/soc/codecs/wm8782.c
Mark Brown 226059e1cd ASoC: wm8782: Add DAPM support
In order to make the device easier to hook up to external components in
system designs and ensure operation when DAPM support becomes mandatory
add DAPM support.

Signed-off-by: Mark Brown <broonie@linaro.org>
2013-08-18 18:39:49 +01:00

85 lines
2.2 KiB
C

/*
* sound/soc/codecs/wm8782.c
* simple, strap-pin configured 24bit 2ch ADC
*
* Copyright: 2011 Raumfeld GmbH
* Author: Johannes Stezenbach <js@sig21.net>
*
* based on ad73311.c
* Copyright: Analog Device Inc.
* Author: Cliff Cai <cliff.cai@analog.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*/
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/soc.h>
static const struct snd_soc_dapm_widget wm8782_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("AINL"),
SND_SOC_DAPM_INPUT("AINR"),
};
static const struct snd_soc_dapm_route wm8782_dapm_routes[] = {
{ "Capture", NULL, "AINL" },
{ "Capture", NULL, "AINR" },
};
static struct snd_soc_dai_driver wm8782_dai = {
.name = "wm8782",
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 2,
/* For configurations with FSAMPEN=0 */
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S20_3LE |
SNDRV_PCM_FMTBIT_S24_LE,
},
};
static struct snd_soc_codec_driver soc_codec_dev_wm8782 = {
.dapm_widgets = wm8782_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(wm8782_dapm_widgets),
.dapm_routes = wm8782_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(wm8782_dapm_routes),
};
static int wm8782_probe(struct platform_device *pdev)
{
return snd_soc_register_codec(&pdev->dev,
&soc_codec_dev_wm8782, &wm8782_dai, 1);
}
static int wm8782_remove(struct platform_device *pdev)
{
snd_soc_unregister_codec(&pdev->dev);
return 0;
}
static struct platform_driver wm8782_codec_driver = {
.driver = {
.name = "wm8782",
.owner = THIS_MODULE,
},
.probe = wm8782_probe,
.remove = wm8782_remove,
};
module_platform_driver(wm8782_codec_driver);
MODULE_DESCRIPTION("ASoC WM8782 driver");
MODULE_AUTHOR("Johannes Stezenbach <js@sig21.net>");
MODULE_LICENSE("GPL");