sound/soc/mediatek/mt7986/mt7986-wm8960.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /*
   3  * mt7986-wm8960.c  --  MT7986-WM8960 ALSA SoC machine driver
   4  *
   5  * Copyright (c) 2023 MediaTek Inc.
   6  * Authors: Vic Wu <vic.wu@mediatek.com>
   7  *          Maso Huang <maso.huang@mediatek.com>
   8  */
   9
  10 #include <linux/module.h>
  11 #include <sound/soc.h>
  12
  13 #include "mt7986-afe-common.h"
  14
  15 static const struct snd_soc_dapm_widget mt7986_wm8960_widgets[] = {
  16         SND_SOC_DAPM_HP("Headphone", NULL),
  17         SND_SOC_DAPM_MIC("AMIC", NULL),
  18 };
  19
  20 static const struct snd_kcontrol_new mt7986_wm8960_controls[] = {
  21         SOC_DAPM_PIN_SWITCH("Headphone"),
  22         SOC_DAPM_PIN_SWITCH("AMIC"),
  23 };
  24
  25 SND_SOC_DAILINK_DEFS(playback,
  26         DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
  27         DAILINK_COMP_ARRAY(COMP_DUMMY()),
  28         DAILINK_COMP_ARRAY(COMP_EMPTY()));
  29
  30 SND_SOC_DAILINK_DEFS(capture,
  31         DAILINK_COMP_ARRAY(COMP_CPU("UL1")),
  32         DAILINK_COMP_ARRAY(COMP_DUMMY()),
  33         DAILINK_COMP_ARRAY(COMP_EMPTY()));
  34
  35 SND_SOC_DAILINK_DEFS(codec,
  36         DAILINK_COMP_ARRAY(COMP_CPU("ETDM")),
  37         DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8960-hifi")),
  38         DAILINK_COMP_ARRAY(COMP_EMPTY()));
  39
  40 static struct snd_soc_dai_link mt7986_wm8960_dai_links[] = {
  41         /* FE */
  42         {
  43                 .name = "wm8960-playback",
  44                 .stream_name = "wm8960-playback",
  45                 .trigger = {SND_SOC_DPCM_TRIGGER_POST,
  46                             SND_SOC_DPCM_TRIGGER_POST},
  47                 .dynamic = 1,
  48                 .dpcm_playback = 1,
  49                 SND_SOC_DAILINK_REG(playback),
  50         },
  51         {
  52                 .name = "wm8960-capture",
  53                 .stream_name = "wm8960-capture",
  54                 .trigger = {SND_SOC_DPCM_TRIGGER_POST,
  55                             SND_SOC_DPCM_TRIGGER_POST},
  56                 .dynamic = 1,
  57                 .dpcm_capture = 1,
  58                 SND_SOC_DAILINK_REG(capture),
  59         },
  60         /* BE */
  61         {
  62                 .name = "wm8960-codec",
  63                 .no_pcm = 1,
  64                 .dai_fmt = SND_SOC_DAIFMT_I2S |
  65                         SND_SOC_DAIFMT_NB_NF |
  66                         SND_SOC_DAIFMT_CBS_CFS |
  67                         SND_SOC_DAIFMT_GATED,
  68                 .dpcm_playback = 1,
  69                 .dpcm_capture = 1,
  70                 SND_SOC_DAILINK_REG(codec),
  71         },
  72 };
  73
  74 static struct snd_soc_card mt7986_wm8960_card = {
  75         .name = "mt7986-wm8960",
  76         .owner = THIS_MODULE,
  77         .dai_link = mt7986_wm8960_dai_links,
  78         .num_links = ARRAY_SIZE(mt7986_wm8960_dai_links),
  79         .controls = mt7986_wm8960_controls,
  80         .num_controls = ARRAY_SIZE(mt7986_wm8960_controls),
  81         .dapm_widgets = mt7986_wm8960_widgets,
  82         .num_dapm_widgets = ARRAY_SIZE(mt7986_wm8960_widgets),
  83 };
  84
  85 static int mt7986_wm8960_machine_probe(struct platform_device *pdev)
  86 {
  87         struct snd_soc_card *card = &mt7986_wm8960_card;
  88         struct snd_soc_dai_link *dai_link;
  89         struct device_node *platform, *codec;
  90         struct device_node *platform_dai_node, *codec_dai_node;
  91         int ret, i;
  92
  93         card->dev = &pdev->dev;
  94
  95         platform = of_get_child_by_name(pdev->dev.of_node, "platform");
  96
  97         if (platform) {
  98                 platform_dai_node = of_parse_phandle(platform, "sound-dai", 0);
  99                 of_node_put(platform);
 100
 101                 if (!platform_dai_node) {
 102                         dev_err(&pdev->dev, "Failed to parse platform/sound-dai property\n");
 103                         return -EINVAL;
 104                 }
 105         } else {
 106                 dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
 107                 return -EINVAL;
 108         }
 109
 110         for_each_card_prelinks(card, i, dai_link) {
 111                 if (dai_link->platforms->name)
 112                         continue;
 113                 dai_link->platforms->of_node = platform_dai_node;
 114         }
 115
 116         codec = of_get_child_by_name(pdev->dev.of_node, "codec");
 117
 118         if (codec) {
 119                 codec_dai_node = of_parse_phandle(codec, "sound-dai", 0);
 120                 of_node_put(codec);
 121
 122                 if (!codec_dai_node) {
 123                         of_node_put(platform_dai_node);
 124                         dev_err(&pdev->dev, "Failed to parse codec/sound-dai property\n");
 125                         return -EINVAL;
 126                 }
 127         } else {
 128                 of_node_put(platform_dai_node);
 129                 dev_err(&pdev->dev, "Property 'codec' missing or invalid\n");
 130                 return -EINVAL;
 131         }
 132
 133         for_each_card_prelinks(card, i, dai_link) {
 134                 if (dai_link->codecs->name)
 135                         continue;
 136                 dai_link->codecs->of_node = codec_dai_node;
 137         }
 138
 139         ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
 140         if (ret) {
 141                 dev_err(&pdev->dev, "Failed to parse audio-routing: %d\n", ret);
 142                 goto err_of_node_put;
 143         }
 144
 145         ret = devm_snd_soc_register_card(&pdev->dev, card);
 146         if (ret) {
 147                 dev_err(&pdev->dev, "%s snd_soc_register_card fail: %d\n", __func__, ret);
 148                 goto err_of_node_put;
 149         }
 150
 151 err_of_node_put:
 152         of_node_put(platform_dai_node);
 153         of_node_put(codec_dai_node);
 154         return ret;
 155 }
 156
 157 static const struct of_device_id mt7986_wm8960_machine_dt_match[] = {
 158         {.compatible = "mediatek,mt7986-wm8960-sound"},
 159         { /* sentinel */ }
 160 };
 161 MODULE_DEVICE_TABLE(of, mt7986_wm8960_machine_dt_match);
 162
 163 static struct platform_driver mt7986_wm8960_machine = {
 164         .driver = {
 165                 .name = "mt7986-wm8960",
 166                 .of_match_table = mt7986_wm8960_machine_dt_match,
 167         },
 168         .probe = mt7986_wm8960_machine_probe,
 169 };
 170
 171 module_platform_driver(mt7986_wm8960_machine);
 172
 173 /* Module information */
 174 MODULE_DESCRIPTION("MT7986 WM8960 ALSA SoC machine driver");
 175 MODULE_AUTHOR("Vic Wu <vic.wu@mediatek.com>");
 176 MODULE_LICENSE("GPL");
 177 MODULE_ALIAS("mt7986 wm8960 soc card");