diff --git a/arch/arm64/boot/dts/rockchip/rk3308-evb-amic-v10.dts b/arch/arm64/boot/dts/rockchip/rk3308-evb-amic-v10.dts
index 871f1785340f..e72c0bd92109 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308-evb-amic-v10.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3308-evb-amic-v10.dts
@@ -24,6 +24,8 @@
 };
 
 &acodec {
+	rockchip,micbias1;
+	rockchip,micbias2;
 	rockchip,en-always-grps = <0 1 2>;
 };
 
diff --git a/arch/arm64/boot/dts/rockchip/rk3308-evb-amic-v11.dts b/arch/arm64/boot/dts/rockchip/rk3308-evb-amic-v11.dts
index c82a7f4d5ee8..053fed9c0316 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308-evb-amic-v11.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3308-evb-amic-v11.dts
@@ -23,6 +23,8 @@
 };
 
 &acodec {
+	rockchip,micbias1;
+	rockchip,micbias2;
 	rockchip,en-always-grps = <1 2 3>;
 	rockchip,adc-grps-route = <1 2 3 0>;
 };
diff --git a/arch/arm64/boot/dts/rockchip/rk3308b-evb-amic-v10.dts b/arch/arm64/boot/dts/rockchip/rk3308b-evb-amic-v10.dts
index b126719fa260..d5e2d9ebd4aa 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308b-evb-amic-v10.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3308b-evb-amic-v10.dts
@@ -23,6 +23,8 @@
 };
 
 &acodec {
+	rockchip,micbias1;
+	rockchip,micbias2;
 	rockchip,en-always-grps = <1 2 3>;
 	rockchip,adc-grps-route = <1 2 3 0>;
 };