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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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cece565690
The Armada 370 DB board not only has analog audio input/output, but also S/PDIF input/output. This commit adds support for S/PDIF in the ASoC machine driver of the Armada 370 DB platform, and adjusts the Device Tree bindings documentation accordingly. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Mark Brown <broonie@linaro.org>
149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
/*
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* Copyright (C) 2014 Marvell
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*
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* Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <linux/slab.h>
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#include <sound/soc.h>
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#include <linux/of.h>
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#include <linux/platform_data/asoc-kirkwood.h>
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#include "../codecs/cs42l51.h"
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static int a370db_hw_params(struct snd_pcm_substream *substream,
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struct snd_pcm_hw_params *params)
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{
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struct snd_soc_pcm_runtime *rtd = substream->private_data;
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struct snd_soc_dai *codec_dai = rtd->codec_dai;
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unsigned int freq;
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switch (params_rate(params)) {
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default:
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case 44100:
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freq = 11289600;
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break;
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case 48000:
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freq = 12288000;
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break;
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case 96000:
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freq = 24576000;
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break;
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}
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return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
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}
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static struct snd_soc_ops a370db_ops = {
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.hw_params = a370db_hw_params,
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};
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static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Out Jack", NULL),
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SND_SOC_DAPM_LINE("In Jack", NULL),
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};
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static const struct snd_soc_dapm_route a370db_route[] = {
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{ "Out Jack", NULL, "HPL" },
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{ "Out Jack", NULL, "HPR" },
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{ "AIN1L", NULL, "In Jack" },
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{ "AIN1L", NULL, "In Jack" },
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};
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static struct snd_soc_dai_link a370db_dai[] = {
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{
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.name = "CS42L51",
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.stream_name = "analog",
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.cpu_dai_name = "i2s",
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.codec_dai_name = "cs42l51-hifi",
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
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.ops = &a370db_ops,
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},
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{
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.name = "S/PDIF out",
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.stream_name = "spdif-out",
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.cpu_dai_name = "spdif",
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.codec_dai_name = "dit-hifi",
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
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},
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{
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.name = "S/PDIF in",
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.stream_name = "spdif-in",
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.cpu_dai_name = "spdif",
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.codec_dai_name = "dir-hifi",
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.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
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},
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};
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static struct snd_soc_card a370db = {
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.name = "a370db",
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.owner = THIS_MODULE,
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.dai_link = a370db_dai,
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.num_links = ARRAY_SIZE(a370db_dai),
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.dapm_widgets = a370db_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets),
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.dapm_routes = a370db_route,
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.num_dapm_routes = ARRAY_SIZE(a370db_route),
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};
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static int a370db_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &a370db;
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card->dev = &pdev->dev;
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a370db_dai[0].cpu_of_node =
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of_parse_phandle(pdev->dev.of_node,
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"marvell,audio-controller", 0);
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a370db_dai[0].platform_of_node = a370db_dai[0].cpu_of_node;
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a370db_dai[0].codec_of_node =
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of_parse_phandle(pdev->dev.of_node,
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"marvell,audio-codec", 0);
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a370db_dai[1].cpu_of_node = a370db_dai[0].cpu_of_node;
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a370db_dai[1].platform_of_node = a370db_dai[0].cpu_of_node;
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a370db_dai[1].codec_of_node =
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of_parse_phandle(pdev->dev.of_node,
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"marvell,audio-codec", 1);
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a370db_dai[2].cpu_of_node = a370db_dai[0].cpu_of_node;
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a370db_dai[2].platform_of_node = a370db_dai[0].cpu_of_node;
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a370db_dai[2].codec_of_node =
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of_parse_phandle(pdev->dev.of_node,
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"marvell,audio-codec", 2);
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return devm_snd_soc_register_card(card->dev, card);
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}
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static const struct of_device_id a370db_dt_ids[] = {
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{ .compatible = "marvell,a370db-audio" },
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{ },
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};
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static struct platform_driver a370db_driver = {
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.driver = {
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.name = "a370db-audio",
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.owner = THIS_MODULE,
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.of_match_table = of_match_ptr(a370db_dt_ids),
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},
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.probe = a370db_probe,
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};
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module_platform_driver(a370db_driver);
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MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
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MODULE_DESCRIPTION("ALSA SoC a370db audio client");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:a370db-audio");
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