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

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  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 = rtd->codec_dai;
 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");
157 

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