ARM: dts: Add DP controller DT node to exynos5420 SoC

Adds DP controller DT node to exynos5420 SoC
Signed-off-by: Vikas Sajjan <vikas.sajjan@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos5420-smdk5420.dts

@@ -31,6 +31,16 @@ oscclk {
 		};
 	};
 
+	dp-controller@145B0000 {
+		samsung,color-space = <0>;
+		samsung,dynamic-range = <0>;
+		samsung,ycbcr-coeff = <0>;
+		samsung,color-depth = <1>;
+		samsung,link-rate = <0x0a>;
+		samsung,lane-count = <4>;
+		status = "okay";
+	};
+
 	fimd@14400000 {
 		status = "okay";
 		display-timings {

arch/arm/boot/dts/exynos5420.dtsi

@@ -181,10 +181,22 @@ serial@12C30000 {
 		clock-names = "uart", "clk_uart_baud0";
 	};
 
+	dp_phy: video-phy@10040728 {
+		compatible = "samsung,exynos5250-dp-video-phy";
+		reg = <0x10040728 4>;
+		#phy-cells = <0>;
+	};
+
+	dp-controller@145B0000 {
+		clocks = <&clock 412>;
+		clock-names = "dp";
+		phys = <&dp_phy>;
+		phy-names = "dp";
+	};
+
 	fimd@14400000 {
 		samsung,power-domain = <&disp_pd>;
 		clocks = <&clock 147>, <&clock 421>;
 		clock-names = "sclk_fimd", "fimd";
 	};
-
 };