diff --git a/arch/arm64/boot/dts/rockchip/rk3588-evb1-lp4-v10-edp-8lanes-M280DCA.dts b/arch/arm64/boot/dts/rockchip/rk3588-evb1-lp4-v10-edp-8lanes-M280DCA.dts
index 65afa35b2d48..5f859cee5280 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588-evb1-lp4-v10-edp-8lanes-M280DCA.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-evb1-lp4-v10-edp-8lanes-M280DCA.dts
@@ -122,7 +122,7 @@
 &edp1 {
 	force-hpd;
 	status = "okay";
-	dual-channel;
+	rockchip,dual-channel;
 
 	ports {
 		port@1 {