forked from Minki/linux
2874c5fd28
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
97 lines
2.4 KiB
C
97 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* ads117x.c -- Driver for ads1174/8 ADC chips
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*
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* Copyright 2009 ShotSpotter Inc.
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* Author: Graeme Gregory <gg@slimlogic.co.uk>
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*/
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/init.h>
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#include <linux/device.h>
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#include <linux/module.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/initval.h>
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#include <sound/soc.h>
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#include <linux/of.h>
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#define ADS117X_RATES (SNDRV_PCM_RATE_8000_48000)
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#define ADS117X_FORMATS (SNDRV_PCM_FMTBIT_S16_LE)
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static const struct snd_soc_dapm_widget ads117x_dapm_widgets[] = {
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SND_SOC_DAPM_INPUT("Input1"),
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SND_SOC_DAPM_INPUT("Input2"),
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SND_SOC_DAPM_INPUT("Input3"),
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SND_SOC_DAPM_INPUT("Input4"),
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SND_SOC_DAPM_INPUT("Input5"),
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SND_SOC_DAPM_INPUT("Input6"),
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SND_SOC_DAPM_INPUT("Input7"),
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SND_SOC_DAPM_INPUT("Input8"),
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};
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static const struct snd_soc_dapm_route ads117x_dapm_routes[] = {
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{ "Capture", NULL, "Input1" },
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{ "Capture", NULL, "Input2" },
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{ "Capture", NULL, "Input3" },
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{ "Capture", NULL, "Input4" },
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{ "Capture", NULL, "Input5" },
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{ "Capture", NULL, "Input6" },
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{ "Capture", NULL, "Input7" },
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{ "Capture", NULL, "Input8" },
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};
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static struct snd_soc_dai_driver ads117x_dai = {
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/* ADC */
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.name = "ads117x-hifi",
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.capture = {
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.stream_name = "Capture",
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.channels_min = 1,
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.channels_max = 32,
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.rates = ADS117X_RATES,
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.formats = ADS117X_FORMATS,},
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};
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static const struct snd_soc_component_driver soc_component_dev_ads117x = {
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.dapm_widgets = ads117x_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(ads117x_dapm_widgets),
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.dapm_routes = ads117x_dapm_routes,
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.num_dapm_routes = ARRAY_SIZE(ads117x_dapm_routes),
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.idle_bias_on = 1,
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.use_pmdown_time = 1,
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.endianness = 1,
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.non_legacy_dai_naming = 1,
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};
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static int ads117x_probe(struct platform_device *pdev)
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{
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return devm_snd_soc_register_component(&pdev->dev,
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&soc_component_dev_ads117x, &ads117x_dai, 1);
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}
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#if defined(CONFIG_OF)
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static const struct of_device_id ads117x_dt_ids[] = {
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{ .compatible = "ti,ads1174" },
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{ .compatible = "ti,ads1178" },
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{ },
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};
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MODULE_DEVICE_TABLE(of, ads117x_dt_ids);
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#endif
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static struct platform_driver ads117x_codec_driver = {
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.driver = {
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.name = "ads117x-codec",
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.of_match_table = of_match_ptr(ads117x_dt_ids),
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},
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.probe = ads117x_probe,
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};
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module_platform_driver(ads117x_codec_driver);
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MODULE_DESCRIPTION("ASoC ads117x driver");
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MODULE_AUTHOR("Graeme Gregory");
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MODULE_LICENSE("GPL");
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