[PATCH v6 5/5] ASoC: airoha: Add machine driver for Airoha AN7581
Christian Marangi
ansuelsmth at gmail.com
Tue Sep 8 02:04:47 PDT 2026
Add support for the machine driver for Airoha AN7581 paired with the WM8960
i2c codec. This driver creates the sound card for the AFE driver.
Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
---
sound/soc/mediatek/Kconfig | 10 ++
sound/soc/mediatek/an7581/Makefile | 1 +
sound/soc/mediatek/an7581/an7581-wm8960.c | 161 ++++++++++++++++++++++
3 files changed, 172 insertions(+)
create mode 100644 sound/soc/mediatek/an7581/an7581-wm8960.c
diff --git a/sound/soc/mediatek/Kconfig b/sound/soc/mediatek/Kconfig
index eb6f2a443b23..ff2869641a35 100644
--- a/sound/soc/mediatek/Kconfig
+++ b/sound/soc/mediatek/Kconfig
@@ -16,6 +16,16 @@ config SND_SOC_AN7581
Select Y if you have such device.
If unsure select "N".
+config SND_SOC_AN7581_WM8960
+ tristate "ASoc Audio driver for Airoha AN7581 with WM8960 codec"
+ depends on SND_SOC_AN7581 && I2C
+ select SND_SOC_WM8960
+ help
+ This adds support for ASoC machine driver for Airoha AN7581
+ boards with the WM8960 codecs.
+ Select Y if you have such device.
+ If unsure select "N".
+
endmenu
menu "Mediatek"
diff --git a/sound/soc/mediatek/an7581/Makefile b/sound/soc/mediatek/an7581/Makefile
index d6de5ee1668e..f48cd0269bea 100644
--- a/sound/soc/mediatek/an7581/Makefile
+++ b/sound/soc/mediatek/an7581/Makefile
@@ -6,3 +6,4 @@ snd-soc-an7581-afe-y := \
an7581-dai-etdm.o
obj-$(CONFIG_SND_SOC_AN7581) += snd-soc-an7581-afe.o
+obj-$(CONFIG_SND_SOC_AN7581_WM8960) += an7581-wm8960.o
diff --git a/sound/soc/mediatek/an7581/an7581-wm8960.c b/sound/soc/mediatek/an7581/an7581-wm8960.c
new file mode 100644
index 000000000000..03ea5732563c
--- /dev/null
+++ b/sound/soc/mediatek/an7581/an7581-wm8960.c
@@ -0,0 +1,161 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Airoha ALSA SoC I2S platform driver for AN7581
+ *
+ */
+
+#include <linux/module.h>
+#include <sound/soc.h>
+
+#include "an7581-afe-common.h"
+
+SND_SOC_DAILINK_DEFS(playback,
+ DAILINK_COMP_ARRAY(COMP_CPU("DL1")),
+ DAILINK_COMP_ARRAY(COMP_DUMMY()),
+ DAILINK_COMP_ARRAY(COMP_EMPTY(), COMP_EMPTY()));
+
+SND_SOC_DAILINK_DEFS(capture,
+ DAILINK_COMP_ARRAY(COMP_CPU("UL1")),
+ DAILINK_COMP_ARRAY(COMP_DUMMY()),
+ DAILINK_COMP_ARRAY(COMP_EMPTY(), 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(), COMP_EMPTY()));
+
+static struct snd_soc_dai_link an7581_wm8960_dai_links[] = {
+ /* FE */
+ {
+ .name = "wm8960-playback",
+ .stream_name = "wm8960-playback",
+ .trigger = {SND_SOC_DPCM_TRIGGER_POST,
+ SND_SOC_DPCM_TRIGGER_POST},
+ .dynamic = 1,
+ .playback_only = 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,
+ .capture_only = 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_CBP_CFP |
+ SND_SOC_DAIFMT_GATED,
+ SND_SOC_DAILINK_REG(codec),
+ },
+};
+
+static struct snd_soc_card an7581_wm8960_card = {
+ .name = "an7581-wm8960",
+ .owner = THIS_MODULE,
+ .dai_link = an7581_wm8960_dai_links,
+ .num_links = ARRAY_SIZE(an7581_wm8960_dai_links),
+};
+
+static int an7581_wm8960_machine_probe(struct platform_device *pdev)
+{
+ struct device_node *platform_dai_node, *codec_dai_node;
+ struct snd_soc_card *card = &an7581_wm8960_card;
+ struct device_node *of_platform, *codec;
+ struct snd_soc_dai_link *dai_link;
+ int i, d, ret;
+
+ card->dev = &pdev->dev;
+
+ of_platform = of_get_child_by_name(pdev->dev.of_node, "platform");
+
+ if (of_platform) {
+ platform_dai_node = of_parse_phandle(of_platform, "sound-dai", 0);
+ of_node_put(of_platform);
+
+ if (!platform_dai_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) {
+ struct snd_soc_dai_link_component *platform;
+
+ dai_link->num_platforms = 2;
+ for_each_link_platforms(dai_link, d, platform) {
+ if (platform->name)
+ continue;
+ platform->of_node = platform_dai_node;
+ }
+ }
+
+ codec = of_get_child_by_name(pdev->dev.of_node, "codec");
+
+ if (codec) {
+ codec_dai_node = of_parse_phandle(codec, "sound-dai", 0);
+ of_node_put(codec);
+
+ if (!codec_dai_node) {
+ of_node_put(platform_dai_node);
+ dev_err(&pdev->dev, "Failed to parse codec/sound-dai property\n");
+ return -EINVAL;
+ }
+ } else {
+ of_node_put(platform_dai_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 = codec_dai_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_probe(&pdev->dev, ret, "%s snd_soc_register_card fail\n", __func__);
+ goto err_of_node_put;
+ }
+
+ return 0;
+
+err_of_node_put:
+ of_node_put(platform_dai_node);
+ of_node_put(codec_dai_node);
+ return ret;
+}
+
+static const struct of_device_id an7581_wm8960_machine_dt_match[] = {
+ { .compatible = "airoha,an7581-wm8960-sound" },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, an7581_wm8960_machine_dt_match);
+
+static struct platform_driver an7581_wm8960_driver = {
+ .driver = {
+ .name = "an7581-wm8960",
+ .of_match_table = an7581_wm8960_machine_dt_match,
+ },
+ .probe = an7581_wm8960_machine_probe,
+};
+module_platform_driver(an7581_wm8960_driver);
+
+MODULE_DESCRIPTION("Airoha SoC I2S platform driver for ALSA AN7581");
+MODULE_LICENSE("GPL");
--
2.53.0
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