diff --git a/arch/arm/boot/dts/rk3308-dot-rk816-v10-aarch32.dts b/arch/arm/boot/dts/rk3308-dot-rk816-v10-aarch32.dts
index 6bf4f3233842..8357cad9dad2 100644
--- a/arch/arm/boot/dts/rk3308-dot-rk816-v10-aarch32.dts
+++ b/arch/arm/boot/dts/rk3308-dot-rk816-v10-aarch32.dts
@@ -343,6 +343,8 @@
 
 &acodec {
 	status = "okay";
+	rockchip,micbias1;
+	rockchip,micbias2;
 	rockchip,no-deep-low-power;
 	rockchip,no-hp-det;
 	rockchip,loopback-grp = <1>;
diff --git a/arch/arm/boot/dts/rk3308-dot-v10-aarch32.dts b/arch/arm/boot/dts/rk3308-dot-v10-aarch32.dts
index faec8b0d54d9..56bad303c4a8 100644
--- a/arch/arm/boot/dts/rk3308-dot-v10-aarch32.dts
+++ b/arch/arm/boot/dts/rk3308-dot-v10-aarch32.dts
@@ -175,6 +175,8 @@
 
 &acodec {
 	status = "okay";
+	rockchip,micbias1;
+	rockchip,micbias2;
 	rockchip,no-deep-low-power;
 	rockchip,no-hp-det;
 	rockchip,loopback-grp = <1>;
diff --git a/arch/arm/boot/dts/rk3308-voice-module-board-v10-aarch32.dts b/arch/arm/boot/dts/rk3308-voice-module-board-v10-aarch32.dts
index 4b96198a4615..b08b688a97cc 100644
--- a/arch/arm/boot/dts/rk3308-voice-module-board-v10-aarch32.dts
+++ b/arch/arm/boot/dts/rk3308-voice-module-board-v10-aarch32.dts
@@ -24,6 +24,8 @@
 
 &acodec {
 	status = "okay";
+	rockchip,micbias1;
+	rockchip,micbias2;
 	rockchip,no-deep-low-power;
 	/* ADC5-6 for 2ch capture, loopback to ADC3-4 */
 	rockchip,adc-grps-route = <2 1 3 0>;
diff --git a/arch/arm/boot/dts/rk3308-voice-module-board-v11-aarch32.dts b/arch/arm/boot/dts/rk3308-voice-module-board-v11-aarch32.dts
index 7ba3baf4755f..627f14a53c80 100644
--- a/arch/arm/boot/dts/rk3308-voice-module-board-v11-aarch32.dts
+++ b/arch/arm/boot/dts/rk3308-voice-module-board-v11-aarch32.dts
@@ -24,6 +24,8 @@
 
 &acodec {
 	status = "okay";
+	rockchip,micbias1;
+	rockchip,micbias2;
 	rockchip,no-deep-low-power;
 	/* ADC5-6 for 2ch capture, loopback to ADC3-4 */
 	rockchip,adc-grps-route = <2 1 3 0>;