diff --git a/arch/arm/dts/imx8mn-bsh-smm-s2pro.dts b/arch/arm/dts/imx8mn-bsh-smm-s2pro.dts
index c6a8ed6..fbbb336 100644
--- a/arch/arm/dts/imx8mn-bsh-smm-s2pro.dts
+++ b/arch/arm/dts/imx8mn-bsh-smm-s2pro.dts
@@ -7,6 +7,7 @@
 /dts-v1/;
 
 #include "imx8mn-bsh-smm-s2-common.dtsi"
+#include <dt-bindings/sound/tlv320aic31xx.h>
 
 / {
 	model = "BSH SMM S2 PRO";
@@ -16,6 +17,65 @@
 		device_type = "memory";
 		reg = <0x0 0x40000000 0x0 0x20000000>;
 	};
+
+	sound-tlv320aic31xx {
+		compatible = "fsl,imx-audio-tlv320aic31xx";
+		model = "tlv320aic31xx-hifi";
+		audio-cpu = <&sai3>;
+		audio-codec = <&tlv320dac3101>;
+		audio-asrc = <&easrc>;
+		audio-routing =
+			"Ext Spk", "SPL",
+			"Ext Spk", "SPR";
+		mclk-id = <PLL_CLKIN_BCLK>;
+	};
+
+	vdd_input: vdd_input {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd_input";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+	};
+};
+
+&easrc {
+	fsl,asrc-rate = <48000>;
+	fsl,asrc-format = <10>;
+	status = "okay";
+};
+
+&i2c2 {
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	status = "okay";
+
+	tlv320dac3101: audio-codec@18 {
+		compatible = "ti,tlv320dac3101";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_dac_rst>;
+		reg = <0x18>;
+		#sound-dai-cells = <0>;
+		HPVDD-supply = <&buck4_reg>;
+		SPRVDD-supply = <&vdd_input>;
+		SPLVDD-supply = <&vdd_input>;
+		AVDD-supply = <&buck4_reg>;
+		IOVDD-supply = <&buck4_reg>;
+		DVDD-supply = <&buck5_reg>;
+		reset-gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
+		ai31xx-micbias-vg = <MICBIAS_AVDDV>;
+		clocks = <&clk IMX8MN_CLK_SAI3_ROOT>;
+	};
+};
+
+&sai3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_sai3>;
+	assigned-clocks = <&clk IMX8MN_CLK_SAI3>;
+	assigned-clock-parents = <&clk IMX8MN_AUDIO_PLL1_OUT>;
+	assigned-clock-rates = <24576000>;
+	fsl,sai-mclk-direction-output;
+	status = "okay";
 };
 
 /* eMMC */
@@ -30,6 +90,36 @@
 };
 
 &iomuxc {
+	pinctrl_dac_rst: dacrstgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_GPIO1_IO06_GPIO1_IO6		0x19 /* DAC_RST */
+		>;
+	};
+
+	pinctrl_espi2: espi2grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_ECSPI2_SCLK_ECSPI2_SCLK		0x082
+			MX8MN_IOMUXC_ECSPI2_MOSI_ECSPI2_MOSI		0x082
+			MX8MN_IOMUXC_ECSPI2_MISO_ECSPI2_MISO		0x082
+			MX8MN_IOMUXC_ECSPI2_SS0_ECSPI2_SS0		0x040
+		>;
+	};
+
+	pinctrl_i2c2: i2c2grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_I2C2_SCL_I2C2_SCL			0x400000c3
+			MX8MN_IOMUXC_I2C2_SDA_I2C2_SDA			0x400000c3
+		>;
+	};
+
+	pinctrl_sai3: sai3grp {
+		fsl,pins = <
+			MX8MN_IOMUXC_SAI3_TXFS_SAI3_TX_SYNC		0xd6
+			MX8MN_IOMUXC_SAI3_TXC_SAI3_TX_BCLK		0xd6
+			MX8MN_IOMUXC_SAI3_TXD_SAI3_TX_DATA0		0xd6
+		>;
+	};
+
 	pinctrl_usdhc1: usdhc1grp {
 		fsl,pins = <
 			MX8MN_IOMUXC_SD1_CLK_USDHC1_CLK			0x40000090