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ASoC: mediatek: mt7986: add machine driver with wm8960
Add support for mt7986 board with wm8960. Signed-off-by: Maso Huang <maso.huang@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20230817101338.18782-5-maso.huang@mediatek.com Signed-off-by: Mark Brown <broonie@kernel.org>
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‎sound/soc/mediatek/Kconfig‎

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@@ -64,6 +64,16 @@ config SND_SOC_MT7986
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Select Y if you have such device.
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If unsure select "N".
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config SND_SOC_MT7986_WM8960
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tristate "ASoc Audio driver for MT7986 with WM8960 codec"
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depends on SND_SOC_MT7986 && I2C
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select SND_SOC_WM8960
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help
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This adds support for ASoC machine driver for MediaTek MT7986
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boards with the WM8960 codecs.
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Select Y if you have such device.
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If unsure select "N".
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config SND_SOC_MT8173
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tristate "ASoC support for Mediatek MT8173 chip"
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depends on ARCH_MEDIATEK

‎sound/soc/mediatek/mt7986/Makefile‎

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@@ -6,3 +6,4 @@ snd-soc-mt7986-afe-objs := \
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mt7986-dai-etdm.o
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obj-$(CONFIG_SND_SOC_MT7986) += snd-soc-mt7986-afe.o
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obj-$(CONFIG_SND_SOC_MT7986_WM8960) += mt7986-wm8960.o

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

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// SPDX-License-Identifier: GPL-2.0
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/*
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* mt7986-wm8960.c -- MT7986-WM8960 ALSA SoC machine driver
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*
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* Copyright (c) 2023 MediaTek Inc.
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* Authors: Vic Wu <vic.wu@mediatek.com>
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* Maso Huang <maso.huang@mediatek.com>
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*/
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#include <linux/module.h>
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#include <sound/soc.h>
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#include "mt7986-afe-common.h"
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struct mt7986_wm8960_priv {
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struct device_node *platform_node;
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struct device_node *codec_node;
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};
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static const struct snd_soc_dapm_widget mt7986_wm8960_widgets[] = {
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SND_SOC_DAPM_HP("Headphone", NULL),
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SND_SOC_DAPM_MIC("AMIC", NULL),
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};
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static const struct snd_kcontrol_new mt7986_wm8960_controls[] = {
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SOC_DAPM_PIN_SWITCH("Headphone"),
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SOC_DAPM_PIN_SWITCH("AMIC"),
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};
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SND_SOC_DAILINK_DEFS(playback,
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DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
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DAILINK_COMP_ARRAY(COMP_DUMMY()),
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DAILINK_COMP_ARRAY(COMP_EMPTY()));
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SND_SOC_DAILINK_DEFS(capture,
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DAILINK_COMP_ARRAY(COMP_CPU("UL1")),
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DAILINK_COMP_ARRAY(COMP_DUMMY()),
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DAILINK_COMP_ARRAY(COMP_EMPTY()));
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SND_SOC_DAILINK_DEFS(codec,
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DAILINK_COMP_ARRAY(COMP_CPU("ETDM")),
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DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8960-hifi")),
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DAILINK_COMP_ARRAY(COMP_EMPTY()));
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static struct snd_soc_dai_link mt7986_wm8960_dai_links[] = {
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/* FE */
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{
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.name = "wm8960-playback",
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.stream_name = "wm8960-playback",
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.trigger = {SND_SOC_DPCM_TRIGGER_POST,
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SND_SOC_DPCM_TRIGGER_POST},
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.dynamic = 1,
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.dpcm_playback = 1,
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SND_SOC_DAILINK_REG(playback),
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},
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{
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.name = "wm8960-capture",
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.stream_name = "wm8960-capture",
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.trigger = {SND_SOC_DPCM_TRIGGER_POST,
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SND_SOC_DPCM_TRIGGER_POST},
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.dynamic = 1,
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.dpcm_capture = 1,
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SND_SOC_DAILINK_REG(capture),
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},
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/* BE */
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{
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.name = "wm8960-codec",
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.no_pcm = 1,
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.dai_fmt = SND_SOC_DAIFMT_I2S |
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SND_SOC_DAIFMT_NB_NF |
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SND_SOC_DAIFMT_CBS_CFS |
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SND_SOC_DAIFMT_GATED,
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.dpcm_playback = 1,
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.dpcm_capture = 1,
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SND_SOC_DAILINK_REG(codec),
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},
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};
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static struct snd_soc_card mt7986_wm8960_card = {
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.name = "mt7986-wm8960",
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.owner = THIS_MODULE,
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.dai_link = mt7986_wm8960_dai_links,
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.num_links = ARRAY_SIZE(mt7986_wm8960_dai_links),
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.controls = mt7986_wm8960_controls,
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.num_controls = ARRAY_SIZE(mt7986_wm8960_controls),
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.dapm_widgets = mt7986_wm8960_widgets,
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.num_dapm_widgets = ARRAY_SIZE(mt7986_wm8960_widgets),
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};
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static int mt7986_wm8960_machine_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &mt7986_wm8960_card;
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struct snd_soc_dai_link *dai_link;
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struct device_node *platform, *codec;
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struct mt7986_wm8960_priv *priv;
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int ret, i;
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priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
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if (!priv)
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return -ENOMEM;
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platform = of_get_child_by_name(pdev->dev.of_node, "platform");
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if (platform) {
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priv->platform_node = of_parse_phandle(platform, "sound-dai", 0);
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of_node_put(platform);
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if (!priv->platform_node) {
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dev_err(&pdev->dev, "Failed to parse platform/sound-dai property\n");
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return -EINVAL;
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}
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} else {
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dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
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return -EINVAL;
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}
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for_each_card_prelinks(card, i, dai_link) {
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if (dai_link->platforms->name)
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continue;
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dai_link->platforms->of_node = priv->platform_node;
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}
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card->dev = &pdev->dev;
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codec = of_get_child_by_name(pdev->dev.of_node, "codec");
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if (codec) {
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priv->codec_node = of_parse_phandle(codec, "sound-dai", 0);
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of_node_put(codec);
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if (!priv->codec_node) {
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of_node_put(priv->platform_node);
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dev_err(&pdev->dev, "Failed to parse codec/sound-dai property\n");
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return -EINVAL;
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}
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} else {
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of_node_put(priv->platform_node);
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dev_err(&pdev->dev, "Property 'codec' missing or invalid\n");
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return -EINVAL;
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}
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for_each_card_prelinks(card, i, dai_link) {
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if (dai_link->codecs->name)
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continue;
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dai_link->codecs->of_node = priv->codec_node;
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}
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ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
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if (ret) {
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dev_err(&pdev->dev, "Failed to parse audio-routing: %d\n", ret);
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goto err_of_node_put;
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}
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ret = devm_snd_soc_register_card(&pdev->dev, card);
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if (ret) {
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dev_err(&pdev->dev, "%s snd_soc_register_card fail: %d\n", __func__, ret);
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goto err_of_node_put;
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}
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err_of_node_put:
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of_node_put(priv->codec_node);
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of_node_put(priv->platform_node);
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return ret;
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}
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static void mt7986_wm8960_machine_remove(struct platform_device *pdev)
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{
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struct snd_soc_card *card = platform_get_drvdata(pdev);
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struct mt7986_wm8960_priv *priv = snd_soc_card_get_drvdata(card);
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of_node_put(priv->codec_node);
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of_node_put(priv->platform_node);
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}
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static const struct of_device_id mt7986_wm8960_machine_dt_match[] = {
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{.compatible = "mediatek,mt7986-wm8960-sound"},
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{ /* sentinel */ }
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};
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MODULE_DEVICE_TABLE(of, mt7986_wm8960_machine_dt_match);
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static struct platform_driver mt7986_wm8960_machine = {
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.driver = {
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.name = "mt7986-wm8960",
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.of_match_table = mt7986_wm8960_machine_dt_match,
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},
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.probe = mt7986_wm8960_machine_probe,
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.remove_new = mt7986_wm8960_machine_remove,
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};
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module_platform_driver(mt7986_wm8960_machine);
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/* Module information */
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MODULE_DESCRIPTION("MT7986 WM8960 ALSA SoC machine driver");
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MODULE_AUTHOR("Vic Wu <vic.wu@mediatek.com>");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("mt7986 wm8960 soc card");

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