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>

diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig
index 5588277..8d1bc88 100644 (file)
--- 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

diff --git a/sound/soc/mediatek/mt7986/Makefile b/sound/soc/mediatek/mt7986/Makefile
index de0742a..fc4c825 100644 (file)
--- 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

diff --git a/sound/soc/mediatek/mt7986/mt7986-wm8960.c b/sound/soc/mediatek/mt7986/mt7986-wm8960.c
new file mode 100644 (file)
index 0000000..364d13b
--- /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");