ARM: dts: omap: align gpio-key node names with dtschema

The node names should be generic and DT schema expects certain pattern
(e.g. with key/button/switch).
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220616005333.18491-32-krzysztof.kozlowski@linaro.org

arch/arm/boot/dts/am335x-evm.dts

@@ -92,20 +92,20 @@ &gpio1 26 GPIO_ACTIVE_HIGH		/* Bank1, pin26 */
 				0x0201006c>;	/* DOWN */
 	};
 
-	gpio_keys: volume_keys0 {
+	gpio_keys: volume-keys {
 		compatible = "gpio-keys";
 		#address-cells = <1>;
 		#size-cells = <0>;
 		autorepeat;
 
-		switch9 {
+		switch-9 {
 			label = "volume-up";
 			linux,code = <115>;
 			gpios = <&gpio0 2 GPIO_ACTIVE_LOW>;
 			wakeup-source;
 		};
 
-		switch10 {
+		switch-10 {
 			label = "volume-down";
 			linux,code = <114>;
 			gpios = <&gpio0 3 GPIO_ACTIVE_LOW>;

arch/arm/boot/dts/am335x-shc.dts

@@ -36,10 +36,10 @@ cpu@0 {
 		};
 	};
 
-	gpio_keys {
+	gpio-keys {
 		compatible = "gpio-keys";
 
-		back_button {
+		back-button {
 			label = "Back Button";
 			gpios = <&gpio1 29 GPIO_ACTIVE_HIGH>;
 			linux,code = <KEY_BACK>;
@@ -47,7 +47,7 @@ back_button {
 			wakeup-source;
 		};
 
-		front_button {
+		front-button {
 			label = "Front Button";
 			gpios = <&gpio1 25 GPIO_ACTIVE_HIGH>;
 			linux,code = <KEY_FRONT>;

arch/arm/boot/dts/am3517-evm-ui.dtsi

@@ -70,61 +70,61 @@ expander-keys {
 		compatible = "gpio-keys-polled";
 		poll-interval = <100>;
 
-		record {
+		key-record {
 			label = "Record";
 			/* linux,code = <BTN_0>; */
 			gpios = <&tca6416_2 15 GPIO_ACTIVE_LOW>;
 		};
 
-		play {
+		key-play {
 			label = "Play";
 			linux,code = <KEY_PLAY>;
 			gpios = <&tca6416_2 14 GPIO_ACTIVE_LOW>;
 		};
 
-		Stop {
+		key-stop {
 			label = "Stop";
 			linux,code = <KEY_STOP>;
 			gpios = <&tca6416_2 13 GPIO_ACTIVE_LOW>;
 		};
 
-		fwd {
+		key-fwd {
 			label = "FWD";
 			linux,code = <KEY_FASTFORWARD>;
 			gpios = <&tca6416_2 12 GPIO_ACTIVE_LOW>;
 		};
 
-		rwd {
+		key-rwd {
 			label = "RWD";
 			linux,code = <KEY_REWIND>;
 			gpios = <&tca6416_2 11 GPIO_ACTIVE_LOW>;
 		};
 
-		shift {
+		key-shift {
 			label = "Shift";
 			linux,code = <KEY_LEFTSHIFT>;
 			gpios = <&tca6416_2 10 GPIO_ACTIVE_LOW>;
 		};
 
-		Mode {
+		key-mode {
 			label = "Mode";
 			linux,code = <BTN_MODE>;
 			gpios = <&tca6416_2 9 GPIO_ACTIVE_LOW>;
 		};
 
-		Menu {
+		key-menu {
 			label = "Menu";
 			linux,code = <KEY_MENU>;
 			gpios = <&tca6416_2 8 GPIO_ACTIVE_LOW>;
 		};
 
-		Up {
+		key-up {
 			label = "Up";
 			linux,code = <KEY_UP>;
 			gpios = <&tca6416_2 7 GPIO_ACTIVE_LOW>;
 		};
 
-		Down {
+		key-down {
 			label = "Down";
 			linux,code = <KEY_DOWN>;
 			gpios = <&tca6416_2 6 GPIO_ACTIVE_LOW>;

arch/arm/boot/dts/am3517-evm.dts

@@ -37,55 +37,55 @@ gpio-keys {
 		compatible = "gpio-keys-polled";
 		poll-interval = <100>;
 
-		user_pb {
+		button-user {
 			label = "User Push Button";
 			linux,code = <BTN_0>;
 			gpios = <&tca6416 5 GPIO_ACTIVE_LOW>;
 		};
 
-		user_sw_1 {
+		switch-1 {
 			label = "User Switch 1";
 			linux,code = <BTN_1>;
 			gpios = <&tca6416 8 GPIO_ACTIVE_LOW>;
 		};
 
-		user_sw_2 {
+		switch-2 {
 			label = "User Switch 2";
 			linux,code = <BTN_2>;
 			gpios = <&tca6416 9 GPIO_ACTIVE_LOW>;
 		};
 
-		user_sw_3 {
+		switch-3 {
 			label = "User Switch 3";
 			linux,code = <BTN_3>;
 			gpios = <&tca6416 10 GPIO_ACTIVE_LOW>;
 		};
 
-		user_sw_4 {
+		switch-4 {
 			label = "User Switch 4";
 			linux,code = <BTN_4>;
 			gpios = <&tca6416 11 GPIO_ACTIVE_LOW>;
 		};
 
-		user_sw_5 {
+		switch-5 {
 			label = "User Switch 5";
 			linux,code = <BTN_5>;
 			gpios = <&tca6416 12 GPIO_ACTIVE_LOW>;
 		};
 
-		user_sw_6 {
+		switch-6 {
 			label = "User Switch 6";
 			linux,code = <BTN_6>;
 			gpios = <&tca6416 13 GPIO_ACTIVE_LOW>;
 		};
 
-		user_sw_7 {
+		switch-7 {
 			label = "User Switch 7";
 			linux,code = <BTN_7>;
 			gpios = <&tca6416 14 GPIO_ACTIVE_LOW>;
 		};
 
-		user_sw_8 {
+		switch-8 {
 			label = "User Switch 8";
 			linux,code = <BTN_8>;
 			gpios = <&tca6416 15 GPIO_ACTIVE_LOW>;

arch/arm/boot/dts/am437x-idk-evm.dts

@@ -98,7 +98,7 @@ v1_5d: fixed-regulator-v1_5d{
 		vin-supply = <&v1_5dreg>;
 	};
 
-	gpio_keys: gpio_keys {
+	gpio_keys: gpio-keys {
 		compatible = "gpio-keys";
 		pinctrl-names = "default";
 		pinctrl-0 = <&gpio_keys_pins_default>;