| // 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 = substream->private_data; |
| 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"); |