mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-31 08:28:13 +00:00
4f2bf0ace0
This patch adds the necessary device tree compatible string to allow DT probing. Signed-off-by: Florian Vaussard <florian.vaussard@heig-vd.ch> Signed-off-by: Mark Brown <broonie@kernel.org>
103 lines
2.6 KiB
C
103 lines
2.6 KiB
C
/*
|
|
* ads117x.c -- Driver for ads1174/8 ADC chips
|
|
*
|
|
* Copyright 2009 ShotSpotter Inc.
|
|
* Author: Graeme Gregory <gg@slimlogic.co.uk>
|
|
*
|
|
* 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/kernel.h>
|
|
#include <linux/slab.h>
|
|
#include <linux/init.h>
|
|
#include <linux/device.h>
|
|
#include <linux/module.h>
|
|
#include <sound/core.h>
|
|
#include <sound/pcm.h>
|
|
#include <sound/initval.h>
|
|
#include <sound/soc.h>
|
|
|
|
#include <linux/of.h>
|
|
|
|
#define ADS117X_RATES (SNDRV_PCM_RATE_8000_48000)
|
|
#define ADS117X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)
|
|
|
|
static const struct snd_soc_dapm_widget ads117x_dapm_widgets[] = {
|
|
SND_SOC_DAPM_INPUT("Input1"),
|
|
SND_SOC_DAPM_INPUT("Input2"),
|
|
SND_SOC_DAPM_INPUT("Input3"),
|
|
SND_SOC_DAPM_INPUT("Input4"),
|
|
SND_SOC_DAPM_INPUT("Input5"),
|
|
SND_SOC_DAPM_INPUT("Input6"),
|
|
SND_SOC_DAPM_INPUT("Input7"),
|
|
SND_SOC_DAPM_INPUT("Input8"),
|
|
};
|
|
|
|
static const struct snd_soc_dapm_route ads117x_dapm_routes[] = {
|
|
{ "Capture", NULL, "Input1" },
|
|
{ "Capture", NULL, "Input2" },
|
|
{ "Capture", NULL, "Input3" },
|
|
{ "Capture", NULL, "Input4" },
|
|
{ "Capture", NULL, "Input5" },
|
|
{ "Capture", NULL, "Input6" },
|
|
{ "Capture", NULL, "Input7" },
|
|
{ "Capture", NULL, "Input8" },
|
|
};
|
|
|
|
static struct snd_soc_dai_driver ads117x_dai = {
|
|
/* ADC */
|
|
.name = "ads117x-hifi",
|
|
.capture = {
|
|
.stream_name = "Capture",
|
|
.channels_min = 1,
|
|
.channels_max = 32,
|
|
.rates = ADS117X_RATES,
|
|
.formats = ADS117X_FORMATS,},
|
|
};
|
|
|
|
static struct snd_soc_codec_driver soc_codec_dev_ads117x = {
|
|
.dapm_widgets = ads117x_dapm_widgets,
|
|
.num_dapm_widgets = ARRAY_SIZE(ads117x_dapm_widgets),
|
|
.dapm_routes = ads117x_dapm_routes,
|
|
.num_dapm_routes = ARRAY_SIZE(ads117x_dapm_routes),
|
|
};
|
|
|
|
static int ads117x_probe(struct platform_device *pdev)
|
|
{
|
|
return snd_soc_register_codec(&pdev->dev,
|
|
&soc_codec_dev_ads117x, &ads117x_dai, 1);
|
|
}
|
|
|
|
static int ads117x_remove(struct platform_device *pdev)
|
|
{
|
|
snd_soc_unregister_codec(&pdev->dev);
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_OF)
|
|
static const struct of_device_id ads117x_dt_ids[] = {
|
|
{ .compatible = "ti,ads1174" },
|
|
{ .compatible = "ti,ads1178" },
|
|
{ },
|
|
};
|
|
MODULE_DEVICE_TABLE(of, ads117x_dt_ids);
|
|
#endif
|
|
|
|
static struct platform_driver ads117x_codec_driver = {
|
|
.driver = {
|
|
.name = "ads117x-codec",
|
|
.of_match_table = of_match_ptr(ads117x_dt_ids),
|
|
},
|
|
|
|
.probe = ads117x_probe,
|
|
.remove = ads117x_remove,
|
|
};
|
|
|
|
module_platform_driver(ads117x_codec_driver);
|
|
|
|
MODULE_DESCRIPTION("ASoC ads117x driver");
|
|
MODULE_AUTHOR("Graeme Gregory");
|
|
MODULE_LICENSE("GPL");
|