ARM: dts: rockchip: clean up gpio-keys nodes

Drop superfluous #address-cells and #size-cells, rename
key-nodes to individual names and also use the key constants
intead of numbers.
Reported-by: NJulien Chauveau <chauveau.julien@gmail.com>
Signed-off-by: NHeiko Stuebner <heiko@sntech.de>
Acked-by: NRob Herring <robh@kernel.org>

arch/arm/boot/dts/rk3066a-bqcurie2.dts

@@ -42,6 +42,7 @@
  */
 
 /dts-v1/;
+#include <dt-bindings/input/input.h>
 #include "rk3066a.dtsi"
 
 / {
@@ -77,21 +78,19 @@
 
 	gpio-keys {
 		compatible = "gpio-keys";
-		#address-cells = <1>;
-		#size-cells = <0>;
 		autorepeat;
 
-		button@0 {
+		power {
 			gpios = <&gpio6 2 GPIO_ACTIVE_LOW>; /* GPIO6_A2 */
-			linux,code = <116>;
+			linux,code = <KEY_POWER>;
 			label = "GPIO Key Power";
 			linux,input-type = <1>;
 			wakeup-source;
 			debounce-interval = <100>;
 		};
-		button@1 {
+		volume-down {
 			gpios = <&gpio4 21 GPIO_ACTIVE_LOW>; /* GPIO4_C5 */
-			linux,code = <104>;
+			linux,code = <KEY_VOLUMEDOWN>;
 			label = "GPIO Key Vol-";
 			linux,input-type = <1>;
 			debounce-interval = <100>;

arch/arm/boot/dts/rk3066a-rayeager.dts

@@ -41,6 +41,7 @@
  */
 
 /dts-v1/;
+#include <dt-bindings/input/input.h>
 #include "rk3066a.dtsi"
 
 / {
@@ -61,14 +62,12 @@
 
 	keys: gpio-keys {
 		compatible = "gpio-keys";
-		#address-cells = <1>;
-		#size-cells = <0>;
 
-		button@0 {
+		power {
 			wakeup-source;
 			gpios = <&gpio6 2 GPIO_ACTIVE_LOW>;
 			label = "GPIO Power";
-			linux,code = <116>;
+			linux,code = <KEY_POWER>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pwr_key>;
 		};

arch/arm/boot/dts/rk3188-radxarock.dts

@@ -41,6 +41,7 @@
  */
 
 /dts-v1/;
+#include <dt-bindings/input/input.h>
 #include "rk3188.dtsi"
 
 / {
@@ -54,13 +55,11 @@
 
 	gpio-keys {
 		compatible = "gpio-keys";
-		#address-cells = <1>;
-		#size-cells = <0>;
 		autorepeat;
 
-		button@0 {
+		power {
 			gpios = <&gpio0 4 GPIO_ACTIVE_LOW>;
-			linux,code = <116>;
+			linux,code = <KEY_POWER>;
 			label = "GPIO Key Power";
 			linux,input-type = <1>;
 			wakeup-source;

arch/arm/boot/dts/rk3288-evb.dtsi

@@ -38,6 +38,7 @@
  *     OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/pwm/pwm.h>
 #include "rk3288.dtsi"
 
@@ -98,16 +99,14 @@
 
 	gpio-keys {
 		compatible = "gpio-keys";
-		#address-cells = <1>;
-		#size-cells = <0>;
 		autorepeat;
 
 		pinctrl-names = "default";
 		pinctrl-0 = <&pwrbtn>;
 
-		button@0 {
+		power {
 			gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
-			linux,code = <116>;
+			linux,code = <KEY_POWER>;
 			label = "GPIO Key Power";
 			linux,input-type = <1>;
 			wakeup-source;

arch/arm/boot/dts/rk3288-firefly.dtsi

@@ -40,6 +40,7 @@
  *     OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#include <dt-bindings/input/input.h>
 #include "rk3288.dtsi"
 
 / {
@@ -87,14 +88,12 @@
 
 	keys: gpio-keys {
 		compatible = "gpio-keys";
-		#address-cells = <1>;
-		#size-cells = <0>;
 
-		button@0 {
+		power {
 			wakeup-source;
 			gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
 			label = "GPIO Power";
-			linux,code = <116>;
+			linux,code = <KEY_POWER>;
 			pinctrl-names = "default";
 			pinctrl-0 = <&pwr_key>;
 		};

arch/arm/boot/dts/rk3288-popmetal.dts

@@ -41,7 +41,7 @@
  */
 
 /dts-v1/;
-
+#include <dt-bindings/input/input.h>
 #include "rk3288.dtsi"
 
 / {
@@ -62,16 +62,14 @@
 
 	gpio-keys {
 		compatible = "gpio-keys";
-		#address-cells = <1>;
-		#size-cells = <0>;
 		autorepeat;
 
 		pinctrl-names = "default";
 		pinctrl-0 = <&pwrbtn>;
 
-		button@0 {
+		power {
 			gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
-			linux,code = <116>;
+			linux,code = <KEY_POWER>;
 			label = "GPIO Key Power";
 			linux,input-type = <1>;
 			wakeup-source;

arch/arm/boot/dts/rk3288-r89.dts

@@ -41,6 +41,7 @@
  */
 
 /dts-v1/;
+#include <dt-bindings/input/input.h>
 #include <dt-bindings/pwm/pwm.h>
 #include "rk3288.dtsi"
 
@@ -61,16 +62,14 @@
 
 	gpio-keys {
 		compatible = "gpio-keys";
-		#address-cells = <1>;
-		#size-cells = <0>;
 		autorepeat;
 
 		pinctrl-names = "default";
 		pinctrl-0 = <&pwrbtn>;
 
-		button@0 {
+		power {
 			gpios = <&gpio0 5 GPIO_ACTIVE_LOW>;
-			linux,code = <116>;
+			linux,code = <KEY_POWER>;
 			label = "GPIO Key Power";
 			linux,input-type = <1>;
 			wakeup-source;