soburi · soburi · Oct 4, 2025
diff --git a/boards/m5stack/m5stack_cores3/m5stack_cores3-pinctrl.dtsi b/boards/m5stack/m5stack_cores3/m5stack_cores3-pinctrl.dtsi
@@ -57,6 +57,22 @@
 		};
 	};
 
+	i2s1_default: i2s1_default {
+		group1 {
+			pinmux = <I2S1_MCLK_GPIO0>,
+				 <I2S1_O_WS_GPIO33>,
+				 <I2S1_O_BCK_GPIO34>,
+				 <I2S1_I_WS_GPIO33>,
+				 <I2S1_I_BCK_GPIO34>;
+			output-enable;
+		};
+
+		group2 {
+			pinmux = <I2S1_I_SD_GPIO14>;
+			input-enable;
+		};
+	};
+
 	i2c0_default: i2c0_default {
 		group1 {
 			pinmux = <I2C0_SDA_GPIO12>,

diff --git a/boards/m5stack/m5stack_cores3/m5stack_cores3_procpu.yaml b/boards/m5stack/m5stack_cores3/m5stack_cores3_procpu.yaml
@@ -8,6 +8,7 @@ supported:
   - gpio
   - uart
   - i2c
+  - i2s
   - spi
   - can
   - counter

diff --git a/boards/m5stack/m5stack_cores3/m5stack_cores3_procpu_common.dtsi b/boards/m5stack/m5stack_cores3/m5stack_cores3_procpu_common.dtsi
@@ -199,6 +199,15 @@
 		int-gpios = <&aw9523b_gpio 10 GPIO_ACTIVE_LOW>;
 		reset-gpios = <&aw9523b_gpio 0 GPIO_ACTIVE_LOW>;
 	};
+
+	es7210: es7210@40 {
+		compatible = "everest,es7210";
+		reg = <0x40>;
+		status = "okay";
+		mclk-frequency = <12288000>;
+		mic-select = <0x3>;
+		mic-gain = <11>;
+	};
 };
 
 &i2c1 {
@@ -233,6 +242,12 @@
 	};
 };
 
+&i2s1 {
+	status = "okay";
+	pinctrl-0 = <&i2s1_default>;
+	pinctrl-names = "default";
+};
+
 &twai {
 	status = "disabled";
 	pinctrl-0 = <&twai_default>;

diff --git a/boards/m5stack/m5stack_cores3/m5stack_cores3_procpu_se.yaml b/boards/m5stack/m5stack_cores3/m5stack_cores3_procpu_se.yaml
@@ -8,6 +8,7 @@ supported:
   - gpio
   - uart
   - i2c
+  - i2s
   - spi
   - can
   - counter

diff --git a/drivers/audio/CMakeLists.txt b/drivers/audio/CMakeLists.txt
@@ -15,4 +15,5 @@ zephyr_library_sources_ifdef(CONFIG_AUDIO_CODEC_WM8962 wm8962.c)
 zephyr_library_sources_ifdef(CONFIG_AUDIO_CODEC_CS43L22 cs43l22.c)
 zephyr_library_sources_ifdef(CONFIG_AUDIO_CODEC_PCM1681 pcm1681.c)
 zephyr_library_sources_ifdef(CONFIG_AUDIO_CODEC_MAX98091 max98091.c)
+zephyr_library_sources_ifdef(CONFIG_AUDIO_CODEC_ES7210 es7210.c)
 zephyr_library_sources_ifdef(CONFIG_AUDIO_DMIC_AMBIQ_PDM dmic_ambiq_pdm.c)
diff --git a/drivers/audio/Kconfig b/drivers/audio/Kconfig
@@ -43,6 +43,7 @@ source "drivers/audio/Kconfig.tlv320aic3110"
 source "drivers/audio/Kconfig.tlv320dac"
 source "drivers/audio/Kconfig.wm8904"
 source "drivers/audio/Kconfig.wm8962"
+source "drivers/audio/Kconfig.es7210"
 
 endif # AUDIO_CODEC
 

diff --git a/drivers/audio/Kconfig.es7210 b/drivers/audio/Kconfig.es7210
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: Apache-2.0
+
+config AUDIO_CODEC_ES7210
+bool "Everest Semiconductor ES7210 audio ADC"
+depends on I2C
+select AUDIO
+depends on DT_HAS_EVEREST_ES7210_ENABLED
+help
+  Enable driver support for the Everest Semiconductor ES7210
+  quad-channel audio analog-to-digital converter. This device
+  provides the front microphones on the M5Stack CoreS3 family.
-Original file line number
+Diff line change
@@ Expand Up / @@ -8,6 +8,7 @@ supported: @@
       - gpio
       - uart
       - i2c
+      - i2s
       - spi
       - can
       - counter
@@ Expand Down @@