diff --git a/arch/arm64/boot/dts/rockchip/rk3308.dtsi b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
index a158b351ef5e..475d47a51525 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
@@ -1469,7 +1469,7 @@
 		ext_micbias {
 			ext_micbias_en: ext-micbias-en {
 				rockchip,pins =
-					<0 RK_PC2 0 &pcfg_pull_none>;
+					<0 RK_PC2 0 &pcfg_pull_down>;
 			};
 		};