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From ddf6abc1c78072f8ccad59166be95f0ca5af8ca4 Mon Sep 17 00:00:00 2001
From: Maso Huang <maso.huang@mediatek.com>
Date: Thu, 17 Aug 2023 18:13:36 +0800
Subject: [PATCH 4/9] 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>
---
sound/soc/mediatek/Kconfig | 10 ++
sound/soc/mediatek/mt7986/Makefile | 1 +
sound/soc/mediatek/mt7986/mt7986-wm8960.c | 196 ++++++++++++++++++++++
3 files changed, 207 insertions(+)
create mode 100644 sound/soc/mediatek/mt7986/mt7986-wm8960.c
--- a/sound/soc/mediatek/Kconfig
+++ b/sound/soc/mediatek/Kconfig
@@ -64,6 +64,16 @@ config SND_SOC_MT7986
Select Y if you have such device.
If unsure select "N".
+config SND_SOC_MT7986_WM8960
+ tristate "ASoc Audio driver for MT7986 with WM8960 codec"
+ depends on SND_SOC_MT7986 && I2C
+ select SND_SOC_WM8960
+ help
+ This adds support for ASoC machine driver for MediaTek MT7986
+ boards with the WM8960 codecs.
+ Select Y if you have such device.
+ If unsure select "N".
+
config SND_SOC_MT8173
tristate "ASoC support for Mediatek MT8173 chip"
depends on ARCH_MEDIATEK
--- a/sound/soc/mediatek/mt7986/Makefile
+++ b/sound/soc/mediatek/mt7986/Makefile
@@ -6,3 +6,4 @@ snd-soc-mt7986-afe-objs := \
mt7986-dai-etdm.o
obj-$(CONFIG_SND_SOC_MT7986) += snd-soc-mt7986-afe.o
+obj-$(CONFIG_SND_SOC_MT7986_WM8960) += mt7986-wm8960.o
--- /dev/null
+++ b/sound/soc/mediatek/mt7986/mt7986-wm8960.c
@@ -0,0 +1,196 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * mt7986-wm8960.c -- MT7986-WM8960 ALSA SoC machine driver
+ *
+ * Copyright (c) 2023 MediaTek Inc.
+ * Authors: Vic Wu <vic.wu@mediatek.com>
+ * Maso Huang <maso.huang@mediatek.com>
+ */
+
+#include <linux/module.h>
+#include <sound/soc.h>
+
+#include "mt7986-afe-common.h"
+
+struct mt7986_wm8960_priv {
+ struct device_node *platform_node;
+ struct device_node *codec_node;
+};
+
+static const struct snd_soc_dapm_widget mt7986_wm8960_widgets[] = {
+ SND_SOC_DAPM_HP("Headphone", NULL),
+ SND_SOC_DAPM_MIC("AMIC", NULL),
+};
+
+static const struct snd_kcontrol_new mt7986_wm8960_controls[] = {
+ SOC_DAPM_PIN_SWITCH("Headphone"),
+ SOC_DAPM_PIN_SWITCH("AMIC"),
+};
+
+SND_SOC_DAILINK_DEFS(playback,
+ DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
+ DAILINK_COMP_ARRAY(COMP_DUMMY()),
+ DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(capture,
+ DAILINK_COMP_ARRAY(COMP_CPU("UL1")),
+ DAILINK_COMP_ARRAY(COMP_DUMMY()),
+ DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(codec,
+ DAILINK_COMP_ARRAY(COMP_CPU("ETDM")),
+ DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "wm8960-hifi")),
+ DAILINK_COMP_ARRAY(COMP_EMPTY()));
+
+static struct snd_soc_dai_link mt7986_wm8960_dai_links[] = {
+ /* FE */
+ {
+ .name = "wm8960-playback",
+ .stream_name = "wm8960-playback",
+ .trigger = {SND_SOC_DPCM_TRIGGER_POST,
+ SND_SOC_DPCM_TRIGGER_POST},
+ .dynamic = 1,
+ .dpcm_playback = 1,
+ SND_SOC_DAILINK_REG(playback),
+ },
+ {
+ .name = "wm8960-capture",
+ .stream_name = "wm8960-capture",
+ .trigger = {SND_SOC_DPCM_TRIGGER_POST,
+ SND_SOC_DPCM_TRIGGER_POST},
+ .dynamic = 1,
+ .dpcm_capture = 1,
+ SND_SOC_DAILINK_REG(capture),
+ },
+ /* BE */
+ {
+ .name = "wm8960-codec",
+ .no_pcm = 1,
+ .dai_fmt = SND_SOC_DAIFMT_I2S |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS |
+ SND_SOC_DAIFMT_GATED,
+ .dpcm_playback = 1,
+ .dpcm_capture = 1,
+ SND_SOC_DAILINK_REG(codec),
+ },
+};
+
+static struct snd_soc_card mt7986_wm8960_card = {
+ .name = "mt7986-wm8960",
+ .owner = THIS_MODULE,
+ .dai_link = mt7986_wm8960_dai_links,
+ .num_links = ARRAY_SIZE(mt7986_wm8960_dai_links),
+ .controls = mt7986_wm8960_controls,
+ .num_controls = ARRAY_SIZE(mt7986_wm8960_controls),
+ .dapm_widgets = mt7986_wm8960_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(mt7986_wm8960_widgets),
+};
+
+static int mt7986_wm8960_machine_probe(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = &mt7986_wm8960_card;
+ struct snd_soc_dai_link *dai_link;
+ struct device_node *platform, *codec;
+ struct mt7986_wm8960_priv *priv;
+ int ret, i;
+
+ priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ platform = of_get_child_by_name(pdev->dev.of_node, "platform");
+
+ if (platform) {
+ priv->platform_node = of_parse_phandle(platform, "sound-dai", 0);
+ of_node_put(platform);
+
+ if (!priv->platform_node) {
+ dev_err(&pdev->dev, "Failed to parse platform/sound-dai property\n");
+ return -EINVAL;
+ }
+ } else {
+ dev_err(&pdev->dev, "Property 'platform' missing or invalid\n");
+ return -EINVAL;
+ }
+
+ for_each_card_prelinks(card, i, dai_link) {
+ if (dai_link->platforms->name)
+ continue;
+ dai_link->platforms->of_node = priv->platform_node;
+ }
+
+ card->dev = &pdev->dev;
+
+ codec = of_get_child_by_name(pdev->dev.of_node, "codec");
+
+ if (codec) {
+ priv->codec_node = of_parse_phandle(codec, "sound-dai", 0);
+ of_node_put(codec);
+
+ if (!priv->codec_node) {
+ of_node_put(priv->platform_node);
+ dev_err(&pdev->dev, "Failed to parse codec/sound-dai property\n");
+ return -EINVAL;
+ }
+ } else {
+ of_node_put(priv->platform_node);
+ dev_err(&pdev->dev, "Property 'codec' missing or invalid\n");
+ return -EINVAL;
+ }
+
+ for_each_card_prelinks(card, i, dai_link) {
+ if (dai_link->codecs->name)
+ continue;
+ dai_link->codecs->of_node = priv->codec_node;
+ }
+
+ ret = snd_soc_of_parse_audio_routing(card, "audio-routing");
+ if (ret) {
+ dev_err(&pdev->dev, "Failed to parse audio-routing: %d\n", ret);
+ goto err_of_node_put;
+ }
+
+ ret = devm_snd_soc_register_card(&pdev->dev, card);
+ if (ret) {
+ dev_err(&pdev->dev, "%s snd_soc_register_card fail: %d\n", __func__, ret);
+ goto err_of_node_put;
+ }
+
+err_of_node_put:
+ of_node_put(priv->codec_node);
+ of_node_put(priv->platform_node);
+ return ret;
+}
+
+static void mt7986_wm8960_machine_remove(struct platform_device *pdev)
+{
+ struct snd_soc_card *card = platform_get_drvdata(pdev);
+ struct mt7986_wm8960_priv *priv = snd_soc_card_get_drvdata(card);
+
+ of_node_put(priv->codec_node);
+ of_node_put(priv->platform_node);
+}
+
+static const struct of_device_id mt7986_wm8960_machine_dt_match[] = {
+ {.compatible = "mediatek,mt7986-wm8960-sound"},
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mt7986_wm8960_machine_dt_match);
+
+static struct platform_driver mt7986_wm8960_machine = {
+ .driver = {
+ .name = "mt7986-wm8960",
+ .of_match_table = mt7986_wm8960_machine_dt_match,
+ },
+ .probe = mt7986_wm8960_machine_probe,
+ .remove_new = mt7986_wm8960_machine_remove,
+};
+
+module_platform_driver(mt7986_wm8960_machine);
+
+/* Module information */
+MODULE_DESCRIPTION("MT7986 WM8960 ALSA SoC machine driver");
+MODULE_AUTHOR("Vic Wu <vic.wu@mediatek.com>");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("mt7986 wm8960 soc card");
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