sound/soc/kirkwood/armada-370-db.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright (C) 2014 Marvell
   4  *
   5  * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
   6  */
   7
   8 #include <linux/module.h>
   9 #include <linux/moduleparam.h>
  10 #include <linux/interrupt.h>
  11 #include <linux/platform_device.h>
  12 #include <linux/slab.h>
  13 #include <sound/soc.h>
  14 #include <linux/of.h>
  15 #include <linux/platform_data/asoc-kirkwood.h>
  16 #include "../codecs/cs42l51.h"
  17
  18 static int a370db_hw_params(struct snd_pcm_substream *substream,
  19                             struct snd_pcm_hw_params *params)
  20 {
  21         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  22         struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
  23         unsigned int freq;
  24
  25         switch (params_rate(params)) {
  26         default:
  27         case 44100:
  28                 freq = 11289600;
  29                 break;
  30         case 48000:
  31                 freq = 12288000;
  32                 break;
  33         case 96000:
  34                 freq = 24576000;
  35                 break;
  36         }
  37
  38         return snd_soc_dai_set_sysclk(codec_dai, 0, freq, SND_SOC_CLOCK_IN);
  39 }
  40
  41 static const struct snd_soc_ops a370db_ops = {
  42         .hw_params = a370db_hw_params,
  43 };
  44
  45 static const struct snd_soc_dapm_widget a370db_dapm_widgets[] = {
  46         SND_SOC_DAPM_HP("Out Jack", NULL),
  47         SND_SOC_DAPM_LINE("In Jack", NULL),
  48 };
  49
  50 static const struct snd_soc_dapm_route a370db_route[] = {
  51         { "Out Jack",   NULL,   "HPL" },
  52         { "Out Jack",   NULL,   "HPR" },
  53         { "AIN1L",      NULL,   "In Jack" },
  54         { "AIN1L",      NULL,   "In Jack" },
  55 };
  56
  57 SND_SOC_DAILINK_DEFS(analog,
  58         DAILINK_COMP_ARRAY(COMP_CPU("i2s")),
  59         DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "cs42l51-hifi")),
  60         DAILINK_COMP_ARRAY(COMP_EMPTY()));
  61
  62 SND_SOC_DAILINK_DEFS(spdif_out,
  63         DAILINK_COMP_ARRAY(COMP_CPU("spdif")),
  64         DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dit-hifi")),
  65         DAILINK_COMP_ARRAY(COMP_EMPTY()));
  66
  67 SND_SOC_DAILINK_DEFS(spdif_in,
  68         DAILINK_COMP_ARRAY(COMP_CPU("spdif")),
  69         DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "dir-hifi")),
  70         DAILINK_COMP_ARRAY(COMP_EMPTY()));
  71
  72 static struct snd_soc_dai_link a370db_dai[] = {
  73 {
  74         .name = "CS42L51",
  75         .stream_name = "analog",
  76         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
  77         .ops = &a370db_ops,
  78         SND_SOC_DAILINK_REG(analog),
  79 },
  80 {
  81         .name = "S/PDIF out",
  82         .stream_name = "spdif-out",
  83         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
  84         SND_SOC_DAILINK_REG(spdif_out),
  85 },
  86 {
  87         .name = "S/PDIF in",
  88         .stream_name = "spdif-in",
  89         .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_CBS_CFS,
  90         SND_SOC_DAILINK_REG(spdif_in),
  91 },
  92 };
  93
  94 static struct snd_soc_card a370db = {
  95         .name = "a370db",
  96         .owner = THIS_MODULE,
  97         .dai_link = a370db_dai,
  98         .num_links = ARRAY_SIZE(a370db_dai),
  99         .dapm_widgets = a370db_dapm_widgets,
 100         .num_dapm_widgets = ARRAY_SIZE(a370db_dapm_widgets),
 101         .dapm_routes = a370db_route,
 102         .num_dapm_routes = ARRAY_SIZE(a370db_route),
 103 };
 104
 105 static int a370db_probe(struct platform_device *pdev)
 106 {
 107         struct snd_soc_card *card = &a370db;
 108
 109         card->dev = &pdev->dev;
 110
 111         a370db_dai[0].cpus->of_node =
 112                 of_parse_phandle(pdev->dev.of_node,
 113                                  "marvell,audio-controller", 0);
 114         a370db_dai[0].platforms->of_node = a370db_dai[0].cpus->of_node;
 115
 116         a370db_dai[0].codecs->of_node =
 117                 of_parse_phandle(pdev->dev.of_node,
 118                                  "marvell,audio-codec", 0);
 119
 120         a370db_dai[1].cpus->of_node = a370db_dai[0].cpus->of_node;
 121         a370db_dai[1].platforms->of_node = a370db_dai[0].cpus->of_node;
 122
 123         a370db_dai[1].codecs->of_node =
 124                 of_parse_phandle(pdev->dev.of_node,
 125                                  "marvell,audio-codec", 1);
 126
 127         a370db_dai[2].cpus->of_node = a370db_dai[0].cpus->of_node;
 128         a370db_dai[2].platforms->of_node = a370db_dai[0].cpus->of_node;
 129
 130         a370db_dai[2].codecs->of_node =
 131                 of_parse_phandle(pdev->dev.of_node,
 132                                  "marvell,audio-codec", 2);
 133
 134         return devm_snd_soc_register_card(card->dev, card);
 135 }
 136
 137 static const struct of_device_id a370db_dt_ids[] = {
 138         { .compatible = "marvell,a370db-audio" },
 139         { },
 140 };
 141 MODULE_DEVICE_TABLE(of, a370db_dt_ids);
 142
 143 static struct platform_driver a370db_driver = {
 144         .driver         = {
 145                 .name   = "a370db-audio",
 146                 .of_match_table = of_match_ptr(a370db_dt_ids),
 147         },
 148         .probe          = a370db_probe,
 149 };
 150
 151 module_platform_driver(a370db_driver);
 152
 153 MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
 154 MODULE_DESCRIPTION("ALSA SoC a370db audio client");
 155 MODULE_LICENSE("GPL");
 156 MODULE_ALIAS("platform:a370db-audio");