ARM: dts: Add display timing node to exynos5250-smdk5250.dts

Add display timing node to exynos5250-smdk5250.dts
Signed-off-by: Leela Krishna Amudala <l.krishna@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos5250-smdk5250.dts

@@ -226,6 +226,22 @@ dp-controller {
 		samsung,lane-count = <4>;
 	};
 
+	display-timings {
+		native-mode = <&timing0>;
+		timing0: timing@0 {
+			/* 1280x800 */
+			clock-frequency = <50000>;
+			hactive = <1280>;
+			vactive = <800>;
+			hfront-porch = <4>;
+			hback-porch = <4>;
+			hsync-len = <4>;
+			vback-porch = <4>;
+			vfront-porch = <4>;
+			vsync-len = <4>;
+		};
+	};
+
 	fixed-rate-clocks {
 		xxti {
 			compatible = "samsung,clock-xxti";