diff --git a/arch/arm64/boot/dts/rockchip/rk3399-mid-818-android.dts b/arch/arm64/boot/dts/rockchip/rk3399-mid-818-android.dts
index 60edaf50c5fa..7bde2158a66a 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-mid-818-android.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-mid-818-android.dts
@@ -54,6 +54,7 @@
 	edp_panel: edp-panel {
 		compatible = "lg,lp079qx1-sp0v", "panel-simple";
 		bus-format = <MEDIA_BUS_FMT_RGB666_1X18>;
+		bpc = <6>;
 		backlight = <&backlight>;
 		power-supply = <&vcc3v3_s0>;
 		enable-gpios = <&gpio3 8 GPIO_ACTIVE_HIGH>;
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-tve1205g.dts b/arch/arm64/boot/dts/rockchip/rk3399-tve1205g.dts
index d718eed0f63b..df07e96c7649 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-tve1205g.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-tve1205g.dts
@@ -57,6 +57,7 @@
 		power-supply = <&vcc3v3_s0>;
 		enable-gpios = <&gpio3 RK_PA0 GPIO_ACTIVE_HIGH>;
 		bus-format = <MEDIA_BUS_FMT_RGB666_1X18>;
+		bpc = <6>;
 		prepare-delay-ms = <50>;
 		ports {
 			panel_in_edp: endpoint {