diff --git a/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts b/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
index 892b84bbf357..2aa719338dac 100644
--- a/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olimex-som-evb.dts
@@ -158,49 +158,49 @@
 	vref-supply = <&reg_vcc3v0>;
 	status = "okay";
 
-	button@190 {
+	button-190 {
 		label = "Volume Up";
 		linux,code = <KEY_VOLUMEUP>;
 		channel = <0>;
 		voltage = <190000>;
 	};
 
-	button@390 {
+	button-390 {
 		label = "Volume Down";
 		linux,code = <KEY_VOLUMEDOWN>;
 		channel = <0>;
 		voltage = <390000>;
 	};
 
-	button@600 {
+	button-600 {
 		label = "Menu";
 		linux,code = <KEY_MENU>;
 		channel = <0>;
 		voltage = <600000>;
 	};
 
-	button@800 {
+	button-800 {
 		label = "Search";
 		linux,code = <KEY_SEARCH>;
 		channel = <0>;
 		voltage = <800000>;
 	};
 
-	button@980 {
+	button-980 {
 		label = "Home";
 		linux,code = <KEY_HOMEPAGE>;
 		channel = <0>;
 		voltage = <980000>;
 	};
 
-	button@1180 {
+	button-1180 {
 		label = "Esc";
 		linux,code = <KEY_ESC>;
 		channel = <0>;
 		voltage = <1180000>;
 	};
 
-	button@1400 {
+	button-1400 {
 		label = "Enter";
 		linux,code = <KEY_ENTER>;
 		channel = <0>;
diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
index 50e7229727a6..f78f18fd7c1c 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
@@ -171,49 +171,49 @@
 	vref-supply = <&reg_vcc3v0>;
 	status = "okay";
 
-	button@191 {
+	button-191 {
 		label = "Volume Up";
 		linux,code = <KEY_VOLUMEUP>;
 		channel = <0>;
 		voltage = <191274>;
 	};
 
-	button@392 {
+	button-392 {
 		label = "Volume Down";
 		linux,code = <KEY_VOLUMEDOWN>;
 		channel = <0>;
 		voltage = <392644>;
 	};
 
-	button@601 {
+	button-601 {
 		label = "Menu";
 		linux,code = <KEY_MENU>;
 		channel = <0>;
 		voltage = <601151>;
 	};
 
-	button@795 {
+	button-795 {
 		label = "Search";
 		linux,code = <KEY_SEARCH>;
 		channel = <0>;
 		voltage = <795090>;
 	};
 
-	button@987 {
+	button-987 {
 		label = "Home";
 		linux,code = <KEY_HOMEPAGE>;
 		channel = <0>;
 		voltage = <987387>;
 	};
 
-	button@1184 {
+	button-1184 {
 		label = "Esc";
 		linux,code = <KEY_ESC>;
 		channel = <0>;
 		voltage = <1184678>;
 	};
 
-	button@1398 {
+	button-1398 {
 		label = "Enter";
 		linux,code = <KEY_ENTER>;
 		channel = <0>;
diff --git a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
index b526890a3203..8fd85c6597bf 100644
--- a/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
+++ b/arch/arm/boot/dts/sun7i-a20-wexler-tab7200.dts
@@ -128,14 +128,14 @@
 	vref-supply = <&reg_vcc3v0>;
 	status = "okay";
 
-	button@571 {
+	button-571 {
 		label = "Volume Up";
 		linux,code = <KEY_VOLUMEUP>;
 		channel = <0>;
 		voltage = <571428>;
 	};
 
-	button@761 {
+	button-761 {
 		label = "Volume Down";
 		linux,code = <KEY_VOLUMEDOWN>;
 		channel = <0>;