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- // SPDX-License-Identifier: GPL-2.0-or-later
- /*
- * Copyright (C) 2014 Marvell
- *
- * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
- */
- #include <linux/module.h>
- #include <linux/moduleparam.h>
- #include <linux/interrupt.h>
- #include <linux/platform_device.h>
- #include <linux/slab.h>
- #include <sound/soc.h>
- #include <linux/of.h>
- #include <linux/platform_data/asoc-kirkwood.h>
- #include "../codecs/cs42l51.h"
- static int a370db_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params)
- {
- struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
- struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
- unsigned int freq;
- switch (params_rate(params)) {
- default:
- case 44100:
- freq = 11289600;
- break;
- case 48000:
- freq = 12288000;
- break;
- case 96000:
- freq = 24576000;
- break;
- }
- return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
- }
- static const struct snd_soc_ops a370db_ops = {
- .hw_params = a370db_hw_params,
- };
- static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = {
- SND_SOC_DAPM_HP("Out Jack", NULL),
- SND_SOC_DAPM_LINE("In Jack", NULL),
- };
- static const struct snd_soc_dapm_route a370db_route[] = {
- { "Out Jack", NULL, "HPL" },
- { "Out Jack", NULL, "HPR" },
- { "AIN1L", NULL, "In Jack" },
- { "AIN1L", NULL, "In Jack" },
- };
- SND_SOC_DAILINK_DEFS(analog,
- DAILINK_COMP_ARRAY(COMP_CPU("i2s")),
- DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42l51-hifi")),
- DAILINK_COMP_ARRAY(COMP_EMPTY()));
- SND_SOC_DAILINK_DEFS(spdif_out,
- DAILINK_COMP_ARRAY(COMP_CPU("spdif")),
- DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dit-hifi")),
- DAILINK_COMP_ARRAY(COMP_EMPTY()));
- SND_SOC_DAILINK_DEFS(spdif_in,
- DAILINK_COMP_ARRAY(COMP_CPU("spdif")),
- DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dir-hifi")),
- DAILINK_COMP_ARRAY(COMP_EMPTY()));
- static struct snd_soc_dai_link a370db_dai[] = {
- {
- .name = "CS42L51",
- .stream_name = "analog",
- .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
- .ops = &a370db_ops,
- SND_SOC_DAILINK_REG(analog),
- },
- {
- .name = "S/PDIF out",
- .stream_name = "spdif-out",
- .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
- SND_SOC_DAILINK_REG(spdif_out),
- },
- {
- .name = "S/PDIF in",
- .stream_name = "spdif-in",
- .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
- SND_SOC_DAILINK_REG(spdif_in),
- },
- };
- static struct snd_soc_card a370db = {
- .name = "a370db",
- .owner = THIS_MODULE,
- .dai_link = a370db_dai,
- .num_links = ARRAY_SIZE(a370db_dai),
- .dapm_widgets = a370db_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets),
- .dapm_routes = a370db_route,
- .num_dapm_routes = ARRAY_SIZE(a370db_route),
- };
- static int a370db_probe(struct platform_device *pdev)
- {
- struct snd_soc_card *card = &a370db;
- card->dev = &pdev->dev;
- a370db_dai[0].cpus->of_node =
- of_parse_phandle(pdev->dev.of_node,
- "marvell,audio-controller", 0);
- a370db_dai[0].platforms->of_node = a370db_dai[0].cpus->of_node;
- a370db_dai[0].codecs->of_node =
- of_parse_phandle(pdev->dev.of_node,
- "marvell,audio-codec", 0);
- a370db_dai[1].cpus->of_node = a370db_dai[0].cpus->of_node;
- a370db_dai[1].platforms->of_node = a370db_dai[0].cpus->of_node;
- a370db_dai[1].codecs->of_node =
- of_parse_phandle(pdev->dev.of_node,
- "marvell,audio-codec", 1);
- a370db_dai[2].cpus->of_node = a370db_dai[0].cpus->of_node;
- a370db_dai[2].platforms->of_node = a370db_dai[0].cpus->of_node;
- a370db_dai[2].codecs->of_node =
- of_parse_phandle(pdev->dev.of_node,
- "marvell,audio-codec", 2);
- return devm_snd_soc_register_card(card->dev, card);
- }
- static const struct of_device_id a370db_dt_ids[] = {
- { .compatible = "marvell,a370db-audio" },
- { },
- };
- MODULE_DEVICE_TABLE(of, a370db_dt_ids);
- static struct platform_driver a370db_driver = {
- .driver = {
- .name = "a370db-audio",
- .of_match_table = of_match_ptr(a370db_dt_ids),
- },
- .probe = a370db_probe,
- };
- module_platform_driver(a370db_driver);
- MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
- MODULE_DESCRIPTION("ALSA SoC a370db audio client");
- MODULE_LICENSE("GPL");
- MODULE_ALIAS("platform:a370db-audio");
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