soc/kirkwood/armada-370-db.c

0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003  * Copyright (C) 2014 Marvell
0004  *
0005  * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
0006  */
0007
0008 #include <linux/module.h>
0009 #include <linux/moduleparam.h>
0010 #include <linux/interrupt.h>
0011 #include <linux/platform_device.h>
0012 #include <linux/slab.h>
0013 #include <sound/soc.h>
0014 #include <linux/of.h>
0015 #include <linux/platform_data/asoc-kirkwood.h>
0016 #include "../codecs/cs42l51.h"
0017
0018 static int a370db_hw_params(struct snd_pcm_substream *substream,
0019                 struct snd_pcm_hw_params *params)
0020 {
0021     struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
0022     struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
0023     unsigned int freq;
0024
0025     switch (params_rate(params)) {
0026     default:
0027     case 44100:
0028         freq = 11289600;
0029         break;
0030     case 48000:
0031         freq = 12288000;
0032         break;
0033     case 96000:
0034         freq = 24576000;
0035         break;
0036     }
0037
0038     return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
0039 }
0040
0041 static const struct snd_soc_ops a370db_ops = {
0042     .hw_params = a370db_hw_params,
0043 };
0044
0045 static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = {
0046     SND_SOC_DAPM_HP("Out Jack", NULL),
0047     SND_SOC_DAPM_LINE("In Jack", NULL),
0048 };
0049
0050 static const struct snd_soc_dapm_route a370db_route[] = {
0051     { "Out Jack",   NULL,   "HPL" },
0052     { "Out Jack",   NULL,   "HPR" },
0053     { "AIN1L",  NULL,   "In Jack" },
0054     { "AIN1L",  NULL,   "In Jack" },
0055 };
0056
0057 SND_SOC_DAILINK_DEFS(analog,
0058     DAILINK_COMP_ARRAY(COMP_CPU("i2s")),
0059     DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42l51-hifi")),
0060     DAILINK_COMP_ARRAY(COMP_EMPTY()));
0061
0062 SND_SOC_DAILINK_DEFS(spdif_out,
0063     DAILINK_COMP_ARRAY(COMP_CPU("spdif")),
0064     DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dit-hifi")),
0065     DAILINK_COMP_ARRAY(COMP_EMPTY()));
0066
0067 SND_SOC_DAILINK_DEFS(spdif_in,
0068     DAILINK_COMP_ARRAY(COMP_CPU("spdif")),
0069     DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dir-hifi")),
0070     DAILINK_COMP_ARRAY(COMP_EMPTY()));
0071
0072 static struct snd_soc_dai_link a370db_dai[] = {
0073 {
0074     .name = "CS42L51",
0075     .stream_name = "analog",
0076     .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
0077     .ops = &a370db_ops,
0078     SND_SOC_DAILINK_REG(analog),
0079 },
0080 {
0081     .name = "S/PDIF out",
0082     .stream_name = "spdif-out",
0083     .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
0084     SND_SOC_DAILINK_REG(spdif_out),
0085 },
0086 {
0087     .name = "S/PDIF in",
0088     .stream_name = "spdif-in",
0089     .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
0090     SND_SOC_DAILINK_REG(spdif_in),
0091 },
0092 };
0093
0094 static struct snd_soc_card a370db = {
0095     .name = "a370db",
0096     .owner = THIS_MODULE,
0097     .dai_link = a370db_dai,
0098     .num_links = ARRAY_SIZE(a370db_dai),
0099     .dapm_widgets = a370db_dapm_widgets,
0100     .num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets),
0101     .dapm_routes = a370db_route,
0102     .num_dapm_routes = ARRAY_SIZE(a370db_route),
0103 };
0104
0105 static int a370db_probe(struct platform_device *pdev)
0106 {
0107     struct snd_soc_card *card = &a370db;
0108
0109     card->dev = &pdev->dev;
0110
0111     a370db_dai[0].cpus->of_node =
0112         of_parse_phandle(pdev->dev.of_node,
0113                  "marvell,audio-controller", 0);
0114     a370db_dai[0].platforms->of_node = a370db_dai[0].cpus->of_node;
0115
0116     a370db_dai[0].codecs->of_node =
0117         of_parse_phandle(pdev->dev.of_node,
0118                  "marvell,audio-codec", 0);
0119
0120     a370db_dai[1].cpus->of_node = a370db_dai[0].cpus->of_node;
0121     a370db_dai[1].platforms->of_node = a370db_dai[0].cpus->of_node;
0122
0123     a370db_dai[1].codecs->of_node =
0124         of_parse_phandle(pdev->dev.of_node,
0125                  "marvell,audio-codec", 1);
0126
0127     a370db_dai[2].cpus->of_node = a370db_dai[0].cpus->of_node;
0128     a370db_dai[2].platforms->of_node = a370db_dai[0].cpus->of_node;
0129
0130     a370db_dai[2].codecs->of_node =
0131         of_parse_phandle(pdev->dev.of_node,
0132                  "marvell,audio-codec", 2);
0133
0134     return devm_snd_soc_register_card(card->dev, card);
0135 }
0136
0137 static const struct of_device_id a370db_dt_ids[] __maybe_unused = {
0138     { .compatible = "marvell,a370db-audio" },
0139     { },
0140 };
0141 MODULE_DEVICE_TABLE(of, a370db_dt_ids);
0142
0143 static struct platform_driver a370db_driver = {
0144     .driver     = {
0145         .name   = "a370db-audio",
0146         .of_match_table = of_match_ptr(a370db_dt_ids),
0147     },
0148     .probe      = a370db_probe,
0149 };
0150
0151 module_platform_driver(a370db_driver);
0152
0153 MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
0154 MODULE_DESCRIPTION("ALSA SoC a370db audio client");
0155 MODULE_LICENSE("GPL");
0156 MODULE_ALIAS("platform:a370db-audio");