target/linux/mediatek/patches-6.6/860-v6.6-04-ASoC-mediatek-mt7986-add-machine-driver-with-wm8960.patch

   1 From ddf6abc1c78072f8ccad59166be95f0ca5af8ca4 Mon Sep 17 00:00:00 2001
   2 From: Maso Huang <maso.huang@mediatek.com>
   3 Date: Thu, 17 Aug 2023 18:13:36 +0800
   4 Subject: [PATCH 4/9] ASoC: mediatek: mt7986: add machine driver with wm8960
   5
   6 Add support for mt7986 board with wm8960.
   7
   8 Signed-off-by: Maso Huang <maso.huang@mediatek.com>
   9 Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
  10 Link: https://lore.kernel.org/r/20230817101338.18782-5-maso.huang@mediatek.com
  11 Signed-off-by: Mark Brown <broonie@kernel.org>
  12 ---
  13  sound/soc/mediatek/Kconfig                |  10 ++
  14  sound/soc/mediatek/mt7986/Makefile        |   1 +
  15  sound/soc/mediatek/mt7986/mt7986-wm8960.c | 196 ++++++++++++++++++++++
  16  3 files changed, 207 insertions(+)
  17  create mode 100644 sound/soc/mediatek/mt7986/mt7986-wm8960.c
  18
  19 --- a/sound/soc/mediatek/Kconfig
  20 +++ b/sound/soc/mediatek/Kconfig
  21 @@ -64,6 +64,16 @@ config SND_SOC_MT7986
  22           Select Y if you have such device.
  23           If unsure select "N".
  24
  25 +config SND_SOC_MT7986_WM8960
  26 +       tristate "ASoc Audio driver for MT7986 with WM8960 codec"
  27 +       depends on SND_SOC_MT7986 && I2C
  28 +       select SND_SOC_WM8960
  29 +       help
  30 +         This adds support for ASoC machine driver for MediaTek MT7986
  31 +         boards with the WM8960 codecs.
  32 +         Select Y if you have such device.
  33 +         If unsure select "N".
  34 +
  35  config SND_SOC_MT8173
  36         tristate "ASoC support for Mediatek MT8173 chip"
  37         depends on ARCH_MEDIATEK
  38 --- a/sound/soc/mediatek/mt7986/Makefile
  39 +++ b/sound/soc/mediatek/mt7986/Makefile
  40 @@ -6,3 +6,4 @@ snd-soc-mt7986-afe-objs := \
  41         mt7986-dai-etdm.o
  42
  43  obj-$(CONFIG_SND_SOC_MT7986) += snd-soc-mt7986-afe.o
  44 +obj-$(CONFIG_SND_SOC_MT7986_WM8960) += mt7986-wm8960.o
  45 --- /dev/null
  46 +++ b/sound/soc/mediatek/mt7986/mt7986-wm8960.c
  47 @@ -0,0 +1,196 @@
  48 +// SPDX-License-Identifier: GPL-2.0
  49 +/*
  50 + * mt7986-wm8960.c  --  MT7986-WM8960 ALSA SoC machine driver
  51 + *
  52 + * Copyright (c) 2023 MediaTek Inc.
  53 + * Authors: Vic Wu <vic.wu@mediatek.com>
  54 + *          Maso Huang <maso.huang@mediatek.com>
  55 + */
  56 +
  57 +#include <linux/module.h>
  58 +#include <sound/soc.h>
  59 +
  60 +#include "mt7986-afe-common.h"
  61 +
  62 +struct mt7986_wm8960_priv {
  63 +       struct device_node *platform_node;
  64 +       struct device_node *codec_node;
  65 +};
  66 +
  67 +static const struct snd_soc_dapm_widget mt7986_wm8960_widgets[] = {
  68 +       SND_SOC_DAPM_HP("Headphone", NULL),
  69 +       SND_SOC_DAPM_MIC("AMIC", NULL),
  70 +};
  71 +
  72 +static const struct snd_kcontrol_new mt7986_wm8960_controls[] = {
  73 +       SOC_DAPM_PIN_SWITCH("Headphone"),
  74 +       SOC_DAPM_PIN_SWITCH("AMIC"),
  75 +};
  76 +
  77 +SND_SOC_DAILINK_DEFS(playback,
  78 +       DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
  79 +       DAILINK_COMP_ARRAY(COMP_DUMMY()),
  80 +       DAILINK_COMP_ARRAY(COMP_EMPTY()));
  81 +
  82 +SND_SOC_DAILINK_DEFS(capture,
  83 +       DAILINK_COMP_ARRAY(COMP_CPU("UL1")),
  84 +       DAILINK_COMP_ARRAY(COMP_DUMMY()),
  85 +       DAILINK_COMP_ARRAY(COMP_EMPTY()));
  86 +
  87 +SND_SOC_DAILINK_DEFS(codec,
  88 +       DAILINK_COMP_ARRAY(COMP_CPU("ETDM")),
  89 +       DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8960-hifi")),
  90 +       DAILINK_COMP_ARRAY(COMP_EMPTY()));
  91 +
  92 +static struct snd_soc_dai_link mt7986_wm8960_dai_links[] = {
  93 +       /* FE */
  94 +       {
  95 +               .name = "wm8960-playback",
  96 +               .stream_name = "wm8960-playback",
  97 +               .trigger = {SND_SOC_DPCM_TRIGGER_POST,
  98 +                           SND_SOC_DPCM_TRIGGER_POST},
  99 +               .dynamic = 1,
 100 +               .dpcm_playback = 1,
 101 +               SND_SOC_DAILINK_REG(playback),
 102 +       },
 103 +       {
 104 +               .name = "wm8960-capture",
 105 +               .stream_name = "wm8960-capture",
 106 +               .trigger = {SND_SOC_DPCM_TRIGGER_POST,
 107 +                           SND_SOC_DPCM_TRIGGER_POST},
 108 +               .dynamic = 1,
 109 +               .dpcm_capture = 1,
 110 +               SND_SOC_DAILINK_REG(capture),
 111 +       },
 112 +       /* BE */
 113 +       {
 114 +               .name = "wm8960-codec",
 115 +               .no_pcm = 1,
 116 +               .dai_fmt = SND_SOC_DAIFMT_I2S |
 117 +                       SND_SOC_DAIFMT_NB_NF |
 118 +                       SND_SOC_DAIFMT_CBS_CFS |
 119 +                       SND_SOC_DAIFMT_GATED,
 120 +               .dpcm_playback = 1,
 121 +               .dpcm_capture = 1,
 122 +               SND_SOC_DAILINK_REG(codec),
 123 +       },
 124 +};
 125 +
 126 +static struct snd_soc_card mt7986_wm8960_card = {
 127 +       .name = "mt7986-wm8960",
 128 +       .owner = THIS_MODULE,
 129 +       .dai_link = mt7986_wm8960_dai_links,
 130 +       .num_links = ARRAY_SIZE(mt7986_wm8960_dai_links),
 131 +       .controls = mt7986_wm8960_controls,
 132 +       .num_controls = ARRAY_SIZE(mt7986_wm8960_controls),
 133 +       .dapm_widgets = mt7986_wm8960_widgets,
 134 +       .num_dapm_widgets = ARRAY_SIZE(mt7986_wm8960_widgets),
 135 +};
 136 +
 137 +static int mt7986_wm8960_machine_probe(struct platform_device *pdev)
 138 +{
 139 +       struct snd_soc_card *card = &mt7986_wm8960_card;
 140 +       struct snd_soc_dai_link *dai_link;
 141 +       struct device_node *platform, *codec;
 142 +       struct mt7986_wm8960_priv *priv;
 143 +       int ret, i;
 144 +
 145 +       priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 146 +       if (!priv)
 147 +               return -ENOMEM;
 148 +
 149 +       platform = of_get_child_by_name(pdev->dev.of_node, "platform");
 150 +
 151 +       if (platform) {
 152 +               priv->platform_node = of_parse_phandle(platform, "sound-dai", 0);
 153 +               of_node_put(platform);
 154 +
 155 +               if (!priv->platform_node) {
 156 +                       dev_err(&pdev->dev, "Failed to parse platform/sound-dai property\n");
 157 +                       return -EINVAL;
 158 +               }
 159 +       } else {
 160 +               dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
 161 +               return -EINVAL;
 162 +       }
 163 +
 164 +       for_each_card_prelinks(card, i, dai_link) {
 165 +               if (dai_link->platforms->name)
 166 +                       continue;
 167 +               dai_link->platforms->of_node = priv->platform_node;
 168 +       }
 169 +
 170 +       card->dev = &pdev->dev;
 171 +
 172 +       codec = of_get_child_by_name(pdev->dev.of_node, "codec");
 173 +
 174 +       if (codec) {
 175 +               priv->codec_node = of_parse_phandle(codec, "sound-dai", 0);
 176 +               of_node_put(codec);
 177 +
 178 +               if (!priv->codec_node) {
 179 +                       of_node_put(priv->platform_node);
 180 +                       dev_err(&pdev->dev, "Failed to parse codec/sound-dai property\n");
 181 +                       return -EINVAL;
 182 +               }
 183 +       } else {
 184 +               of_node_put(priv->platform_node);
 185 +               dev_err(&pdev->dev, "Property 'codec' missing or invalid\n");
 186 +               return -EINVAL;
 187 +       }
 188 +
 189 +       for_each_card_prelinks(card, i, dai_link) {
 190 +               if (dai_link->codecs->name)
 191 +                       continue;
 192 +               dai_link->codecs->of_node = priv->codec_node;
 193 +       }
 194 +
 195 +       ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
 196 +       if (ret) {
 197 +               dev_err(&pdev->dev, "Failed to parse audio-routing: %d\n", ret);
 198 +               goto err_of_node_put;
 199 +       }
 200 +
 201 +       ret = devm_snd_soc_register_card(&pdev->dev, card);
 202 +       if (ret) {
 203 +               dev_err(&pdev->dev, "%s snd_soc_register_card fail: %d\n", __func__, ret);
 204 +               goto err_of_node_put;
 205 +       }
 206 +
 207 +err_of_node_put:
 208 +       of_node_put(priv->codec_node);
 209 +       of_node_put(priv->platform_node);
 210 +       return ret;
 211 +}
 212 +
 213 +static void mt7986_wm8960_machine_remove(struct platform_device *pdev)
 214 +{
 215 +       struct snd_soc_card *card = platform_get_drvdata(pdev);
 216 +       struct mt7986_wm8960_priv *priv = snd_soc_card_get_drvdata(card);
 217 +
 218 +       of_node_put(priv->codec_node);
 219 +       of_node_put(priv->platform_node);
 220 +}
 221 +
 222 +static const struct of_device_id mt7986_wm8960_machine_dt_match[] = {
 223 +       {.compatible = "mediatek,mt7986-wm8960-sound"},
 224 +       { /* sentinel */ }
 225 +};
 226 +MODULE_DEVICE_TABLE(of, mt7986_wm8960_machine_dt_match);
 227 +
 228 +static struct platform_driver mt7986_wm8960_machine = {
 229 +       .driver = {
 230 +               .name = "mt7986-wm8960",
 231 +               .of_match_table = mt7986_wm8960_machine_dt_match,
 232 +       },
 233 +       .probe = mt7986_wm8960_machine_probe,
 234 +       .remove_new = mt7986_wm8960_machine_remove,
 235 +};
 236 +
 237 +module_platform_driver(mt7986_wm8960_machine);
 238 +
 239 +/* Module information */
 240 +MODULE_DESCRIPTION("MT7986 WM8960 ALSA SoC machine driver");
 241 +MODULE_AUTHOR("Vic Wu <vic.wu@mediatek.com>");
 242 +MODULE_LICENSE("GPL");
 243 +MODULE_ALIAS("mt7986 wm8960 soc card");