diff --git a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
index 789fd0dcc88b..3cd63d1e8f15 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-gru.dtsi
@@ -450,7 +450,7 @@ ap_i2c_audio: &i2c8 {
 			dlg,btn-cfg = <50>;
 			dlg,mic-det-thr = <500>;
 			dlg,jack-ins-deb = <20>;
-			dlg,jack-det-rate = "32ms_64ms";
+			dlg,jack-det-rate = "32_64";
 			dlg,jack-rem-deb = <1>;
 
 			dlg,a-d-btn-thr = <0xa>;