rockchip: dts: rk3399: enable HDMI output in the DTS

This commit enables HDMI output in the DTS by adding the necessary
nodes to vopl/vopb and by adding the HDMI node.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/dts/rk3399.dtsi

@@ -1419,6 +1419,11 @@
 				reg = <3>;
 				remote-endpoint = <&mipi_in_vopl>;
 			};
+
+			vopl_out_hdmi: endpoint@1 {
+				reg = <1>;
+				remote-endpoint = <&hdmi_in_vopl>;
+			};
 		};
 	};
 
@@ -1440,6 +1445,40 @@
 				reg = <3>;
 				remote-endpoint = <&mipi_in_vopb>;
 			};
+
+			vopb_out_hdmi: endpoint@1 {
+				reg = <1>;
+				remote-endpoint = <&hdmi_in_vopb>;
+			};
+		};
+	};
+
+	hdmi: hdmi@ff940000 {
+		compatible = "rockchip,rk3399-dw-hdmi";
+		reg = <0x0 0xff940000 0x0 0x20000>;
+		reg-io-width = <4>;
+		rockchip,grf = <&grf>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&hdmi_i2c_xfer>;
+		power-domains = <&power RK3399_PD_HDCP>;
+		interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH 0>;
+		clocks = <&cru PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_SFR>, <&cru PLL_VPLL>, <&cru PCLK_VIO_GRF>;
+		clock-names = "iahb", "isfr", "vpll", "grf";
+		status = "disabled";
+
+		ports {
+			hdmi_in: port {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				hdmi_in_vopb: endpoint@0 {
+					reg = <0>;
+					remote-endpoint = <&vopb_out_hdmi>;
+				};
+				hdmi_in_vopl: endpoint@1 {
+					reg = <1>;
+					remote-endpoint = <&vopl_out_hdmi>;
+				};
+			};
 		};
 	};