ARM: dts: enable dp-controller for exynos5420-peach-pit board

Enable dp-controller for peach-pit board.
Signed-off-by: NRahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos5420-peach-pit.dts

@@ -133,6 +133,13 @@
 		samsung,pin-pud = <0>;
 		samsung,pin-drv = <0>;
 	};
+
+	dp_hpd_gpio: dp_hpd_gpio {
+		samsung,pins = "gpx2-6";
+		samsung,pin-function = <0>;
+		samsung,pin-pud = <3>;
+		samsung,pin-drv = <0>;
+	};
 };
 
 &rtc {
@@ -249,3 +256,32 @@
 	status = "okay";
 	samsung,invert-vclk;
 };
+
+&dp {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&dp_hpd_gpio>;
+	samsung,color-space = <0>;
+	samsung,dynamic-range = <0>;
+	samsung,ycbcr-coeff = <0>;
+	samsung,color-depth = <1>;
+	samsung,link-rate = <0x06>;
+	samsung,lane-count = <2>;
+	samsung,hpd-gpio = <&gpx2 6 0>;
+
+	display-timings {
+		native-mode = <&timing1>;
+
+		timing1: timing@1 {
+			clock-frequency = <70589280>;
+			hactive = <1366>;
+			vactive = <768>;
+			hfront-porch = <40>;
+			hback-porch = <40>;
+			hsync-len = <32>;
+			vback-porch = <10>;
+			vfront-porch = <12>;
+			vsync-len = <6>;
+		};
+	};
+};