ARM: dts: use key code macros on Origen and Arndale boards

Key code macros improve readability on exnos4210-origen,
exynos4412-origen and exynos5250-arndale boards.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
[kgene.kim@samsung.com: squashed similar two patches]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

arch/arm/boot/dts/exynos4210-origen.dts

@@ -16,6 +16,7 @@
 
 /dts-v1/;
 #include "exynos4210.dtsi"
+#include <dt-bindings/input/input.h>
 
 / {
 	model = "Insignal Origen evaluation board based on Exynos4210";
@@ -259,35 +260,35 @@ gpio_keys {
 		up {
 			label = "Up";
 			gpios = <&gpx2 0 1>;
-			linux,code = <103>;
+			linux,code = <KEY_UP>;
 			gpio-key,wakeup;
 		};
 
 		down {
 			label = "Down";
 			gpios = <&gpx2 1 1>;
-			linux,code = <108>;
+			linux,code = <KEY_DOWN>;
 			gpio-key,wakeup;
 		};
 
 		back {
 			label = "Back";
 			gpios = <&gpx1 7 1>;
-			linux,code = <158>;
+			linux,code = <KEY_BACK>;
 			gpio-key,wakeup;
 		};
 
 		home {
 			label = "Home";
 			gpios = <&gpx1 6 1>;
-			linux,code = <102>;
+			linux,code = <KEY_HOME>;
 			gpio-key,wakeup;
 		};
 
 		menu {
 			label = "Menu";
 			gpios = <&gpx1 5 1>;
-			linux,code = <139>;
+			linux,code = <KEY_MENU>;
 			gpio-key,wakeup;
 		};
 	};

arch/arm/boot/dts/exynos4412-origen.dts

@@ -14,6 +14,7 @@
 
 /dts-v1/;
 #include "exynos4412.dtsi"
+#include <dt-bindings/input/input.h>
 
 / {
 	model = "Insignal Origen evaluation board based on Exynos4412";
@@ -84,37 +85,37 @@ keypad@100A0000 {
 		key_home {
 			keypad,row = <0>;
 			keypad,column = <0>;
-			linux,code = <102>;
+			linux,code = <KEY_HOME>;
 		};
 
 		key_down {
 			keypad,row = <0>;
 			keypad,column = <1>;
-			linux,code = <108>;
+			linux,code = <KEY_DOWN>;
 		};
 
 		key_up {
 			keypad,row = <1>;
 			keypad,column = <0>;
-			linux,code = <103>;
+			linux,code = <KEY_UP>;
 		};
 
 		key_menu {
 			keypad,row = <1>;
 			keypad,column = <1>;
-			linux,code = <139>;
+			linux,code = <KEY_MENU>;
 		};
 
 		key_back {
 			keypad,row = <2>;
 			keypad,column = <0>;
-			linux,code = <158>;
+			linux,code = <KEY_BACK>;
 		};
 
 		key_enter {
 			keypad,row = <2>;
 			keypad,column = <1>;
-			linux,code = <28>;
+			linux,code = <KEY_ENTER>;
 		};
 	};
 

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

@@ -12,6 +12,7 @@
 /dts-v1/;
 #include "exynos5250.dtsi"
 #include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/input/input.h>
 
 / {
 	model = "Insignal Arndale evaluation board based on EXYNOS5250";
@@ -444,42 +445,42 @@ gpio_keys {
 		menu {
 			label = "SW-TACT2";
 			gpios = <&gpx1 4 1>;
-			linux,code = <139>;
+			linux,code = <KEY_MENU>;
 			gpio-key,wakeup;
 		};
 
 		home {
 			label = "SW-TACT3";
 			gpios = <&gpx1 5 1>;
-			linux,code = <102>;
+			linux,code = <KEY_HOME>;
 			gpio-key,wakeup;
 		};
 
 		up {
 			label = "SW-TACT4";
 			gpios = <&gpx1 6 1>;
-			linux,code = <103>;
+			linux,code = <KEY_UP>;
 			gpio-key,wakeup;
 		};
 
 		down {
 			label = "SW-TACT5";
 			gpios = <&gpx1 7 1>;
-			linux,code = <108>;
+			linux,code = <KEY_DOWN>;
 			gpio-key,wakeup;
 		};
 
 		back {
 			label = "SW-TACT6";
 			gpios = <&gpx2 0 1>;
-			linux,code = <158>;
+			linux,code = <KEY_BACK>;
 			gpio-key,wakeup;
 		};
 
 		wakeup {
 			label = "SW-TACT7";
 			gpios = <&gpx2 1 1>;
-			linux,code = <143>;
+			linux,code = <KEY_WAKEUP>;
 			gpio-key,wakeup;
 		};
 	};