diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
index bab46db2b18c..478620c78259 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts
@@ -481,10 +481,6 @@
 				};
 			};
 		};
-
-		codec {
-			mic-in-differential;
-		};
 	};
 };