exynos: dts: Add display-related device tree fragments

Bring in device tree pieces related to display from Linux 4.4 for:

- snow
- peach_pit
- peach_pi
- spring

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
diff --git a/arch/arm/dts/exynos5420-peach-pit.dts b/arch/arm/dts/exynos5420-peach-pit.dts
index 16d52f4..2db4ad2 100644
--- a/arch/arm/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/dts/exynos5420-peach-pit.dts
@@ -9,6 +9,8 @@
 
 /dts-v1/;
 #include "exynos54xx.dtsi"
+#include <dt-bindings/clock/maxim,max77802.h>
+#include <dt-bindings/regulator/maxim,max77802.h>
 
 / {
 	model = "Samsung/Google Peach Pit board based on Exynos5420";
@@ -29,6 +31,14 @@
 		i2c104 = &i2c_tunnel;
 	};
 
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		pwms = <&pwm 0 1000000 0>;
+		brightness-levels = <0 100 500 1000 1500 2000 2500 2800>;
+		default-brightness-level = <7>;
+		power-supply = <&tps65090_fet1>;
+	};
+
 	dmc {
 		mem-manuf = "samsung";
 		mem-type = "ddr3";
@@ -188,6 +198,20 @@
 				0x04 0x59 0x60
 				0x04 0x54 0x14  /* LC -> RCO */
 				0x02 0xa1 0x91>;  /* HPD high */
+
+			ports {
+				port@0 {
+					bridge_out: endpoint {
+						remote-endpoint = <&panel_in>;
+					};
+				};
+
+				port@1 {
+					bridge_in: endpoint {
+						remote-endpoint = <&dp_out>;
+					};
+				};
+			};
 	        };
 	};
 
@@ -203,6 +227,18 @@
 		};
 	};
 
+	panel: panel {
+		compatible = "auo,b116xw03";
+		power-supply = <&tps65090_fet6>;
+		backlight = <&backlight>;
+
+		port {
+			panel_in: endpoint {
+				remote-endpoint = <&bridge_out>;
+			};
+		};
+	};
+
 	spi@12d30000 { /* spi1 */
 		spi-max-frequency = <50000000>;
 		firmware_storage_spi: flash@0 {
@@ -254,6 +290,25 @@
 	};
 };
 
+&dp {
+	status = "okay";
+	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 GPIO_ACTIVE_HIGH>;
+
+	ports {
+		port@0 {
+			dp_out: endpoint {
+				remote-endpoint = <&bridge_in>;
+			};
+		};
+	};
+};
+
 &spi_2 {
 	spi-max-frequency = <3125000>;
 	spi-deactivate-delay = <200>;