ARM: dts: rockchip: rk628: support hpd level inversion configuration

Signed-off-by: Dingxian Wen <shawn.wen@rock-chips.com>
Change-Id: Ida889b7cfb0b617158e6f3f31fa1c72c6a6f631c

Author: Dingxian Wen

arch/arm/boot/dts/rk3288-evb-rk628-hdmi2csi-avb.dts

@@ -82,6 +82,11 @@
 
 &rk628_csi {
 	status = "okay";
+	/*
+	 * If the hpd output level is inverted on the circuit,
+	 * the following configuration needs to be enabled.
+	 */
+	/* hpd-output-inverted; */
 	plugin-det-gpios = <&gpio0 13 GPIO_ACTIVE_HIGH>;
 	power-gpios = <&gpio0 17 GPIO_ACTIVE_HIGH>;
 	rockchip,camera-module-index = <0>;