ARM: dts: at91: Fix schema warnings for pwm-leds

The node names for devices using the pwm-leds driver follow a certain
naming scheme (now). Parent node name is not enforced, but recommended
by DT project.

DTC arch/arm/boot/dts/at91-kizbox2-2.dt.yaml
CHECK arch/arm/boot/dts/at91-kizbox2-2.dt.yaml
/home/alex/build/linux/arch/arm/boot/dts/at91-kizbox2-2.dt.yaml: pwm_leds: 'blue', 'green', 'red' do not match any of the regexes: '^led(-[0-9a-f]+)?$', 'pinctrl-[0-9]+'
From schema: /home/alex/src/linux/leds/Documentation/devicetree/bindings/leds/leds-pwm.yaml
DTC arch/arm/boot/dts/at91-kizbox3-hs.dt.yaml
CHECK arch/arm/boot/dts/at91-kizbox3-hs.dt.yaml
/home/alex/build/linux/arch/arm/boot/dts/at91-kizbox3-hs.dt.yaml: pwm_leds: 'blue', 'green', 'red', 'white' do not match any of the regexes: '^led(-[0-9a-f]+)?$', 'pinctrl-[0-9]+'
From schema: /home/alex/src/linux/leds/Documentation/devicetree/bindings/leds/leds-pwm.yaml

(Warnings above are for armv7 only, armv5 would produce similar warnings.)

Signed-off-by: Alexander Dahl <[e-mail]>
Signed-off-by: Alexandre Belloni <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

arch/arm/boot/dts/at91-kizbox.dts

···
 		};
 	};
 
-	pwm_leds {
+	led-controller {
 		compatible = "pwm-leds";
 
-		network_green {
+		led-1 {
 			label = "pwm:green:network";
 			pwms = <&tcb_pwm 2 10000000 PWM_POLARITY_INVERTED>;
 			max-brightness = <255>;
 			linux,default-trigger = "default-on";
 		};
 
-		network_red {
+		led-2 {
 			label = "pwm:red:network";
 			pwms = <&tcb_pwm 4 10000000 PWM_POLARITY_INVERTED>;
 			max-brightness = <255>;
 			linux,default-trigger = "default-on";
 		};
 
-		user_green {
+		led-3 {
 			label = "pwm:green:user";
 			pwms = <&tcb_pwm 0 10000000 PWM_POLARITY_INVERTED>;
 			max-brightness = <255>;
 			linux,default-trigger = "default-on";
 		};
 
-		user_red {
+		led-4 {
 			label = "pwm:red:user";
 			pwms = <&tcb_pwm 1 10000000 PWM_POLARITY_INVERTED>;
 			max-brightness = <255>;

arch/arm/boot/dts/at91-kizbox2-common.dtsi

···
 		};
 	};
 
-	pwm_leds {
+	led-controller {
 		compatible = "pwm-leds";
 
-		blue {
+		led-1 {
 			label = "pwm:blue:user";
 			pwms = <&pwm0 2 10000000 0>;
 			max-brightness = <255>;
 			linux,default-trigger = "none";
 		};
 
-		green {
+		led-2 {
 			label = "pwm:green:user";
 			pwms = <&pwm0 1 10000000 0>;
 			max-brightness = <255>;
 			linux,default-trigger = "default-on";
 		};
 
-		red {
+		led-3 {
 			label = "pwm:red:user";
 			pwms = <&pwm0 0 10000000 0>;
 			max-brightness = <255>;

arch/arm/boot/dts/at91-kizbox3-hs.dts

···
 	model = "Overkiz KIZBOX3-HS";
 	compatible = "overkiz,kizbox3-hs", "atmel,sama5d2", "atmel,sama5";
 
-	pwm_leds {
+	led-controller-1 {
 		status = "okay";
 
-		red {
+		led-1 {
 			status = "okay";
 		};
 
-		green {
+		led-2 {
 			status = "okay";
 		};
 
-		blue {
+		led-3 {
 			status = "okay";
 		};
 
-		white {
+		led-4 {
 			status = "okay";
 		};
 	};
 
-	leds  {
+	led-controller-2  {
 		compatible = "gpio-leds";
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_led_red
 			     &pinctrl_led_white>;
 		status = "okay";
 
-		red {
+		led-5 {
 			label = "pio:red:user";
 			gpios = <&pioA PIN_PB1 GPIO_ACTIVE_HIGH>;
 			default-state = "off";
 		};
 
-		white {
+		led-6 {
 			label = "pio:white:user";
 			gpios = <&pioA PIN_PB8 GPIO_ACTIVE_HIGH>;
 			default-state = "off";

arch/arm/boot/dts/at91-kizbox3_common.dtsi

···
 		regulator-always-on;
 	};
 
-	pwm_leds {
+	led-controller-1 {
 		compatible = "pwm-leds";
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_pwm0_pwm_h0
···
 			     &pinctrl_pwm0_pwm_h3>;
 		status = "disabled";
 
-		red {
+		led-1 {
 			label = "pwm:red:user";
 			pwms = <&pwm0 0 10000000 0>;
 			max-brightness = <255>;
···
 			status = "disabled";
 		};
 
-		green {
+		led-2 {
 			label = "pwm:green:user";
 			pwms = <&pwm0 1 10000000 0>;
 			max-brightness = <255>;
···
 			status = "disabled";
 		};
 
-		blue {
+		led-3 {
 			label = "pwm:blue:user";
 			pwms = <&pwm0 2 10000000 0>;
 			max-brightness = <255>;
 			status = "disabled";
 		};
 
-		white {
+		led-4 {
 			label = "pwm:white:user";
 			pwms = <&pwm0 3 10000000 0>;
 			max-brightness = <255>;

arch/arm/boot/dts/at91-kizboxmini-common.dtsi

···
 		};
 	};
 
-	leds: pwm_leds {
+	leds: led-controller-1 {
 		compatible = "pwm-leds";
 
-		led_blue: pwm_blue {
+		led_blue: led-1 {
 			label = "pwm:blue:user";
 			pwms = <&pwm0 2 10000000 0>;
 			max-brightness = <255>;
···
 			status = "disabled";
 		};
 
-		led_green: pwm_green {
+		led_green: led-2 {
 			label = "pwm:green:user";
 			pwms = <&pwm0 0 10000000 0>;
 			max-brightness = <255>;
 			linux,default-trigger = "default-on";
 		};
 
-		led_red: pwm_red {
+		led_red: led-3 {
 			label = "pwm:red:user";
 			pwms = <&pwm0 1 10000000 0>;
 			max-brightness = <255>;

arch/arm/boot/dts/at91sam9m10g45ek.dts

···
 		};
 	};
 
-	leds {
+	led-controller-1 {
 		compatible = "gpio-leds";
 
-		d8 {
+		led-1 {
 			label = "d8";
 			gpios = <&pioD 30 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";
 		};
 	};
 
-	pwmleds {
+	led-controller-2 {
 		compatible = "pwm-leds";
 
-		d6 {
+		led-2 {
 			label = "d6";
 			pwms = <&pwm0 3 5000 PWM_POLARITY_INVERTED>;
 			max-brightness = <255>;
 			linux,default-trigger = "nand-disk";
 		};
 
-		d7 {
+		led-3 {
 			label = "d7";
 			pwms = <&pwm0 1 5000 PWM_POLARITY_INVERTED>;
 			max-brightness = <255>;

arch/arm/boot/dts/at91sam9rlek.dts

···
 		};
 	};
 
-	pwmleds {
+	led-controller-1 {
 		compatible = "pwm-leds";
 
-		ds1 {
+		led-1 {
 			label = "ds1";
 			pwms = <&pwm0 1 5000 PWM_POLARITY_INVERTED>;
 			max-brightness = <255>;
 		};
 
-		ds2 {
+		led-2 {
 			label = "ds2";
 			pwms = <&pwm0 2 5000 PWM_POLARITY_INVERTED>;
 			max-brightness = <255>;
 		};
 	};
 
-	leds {
+	led-controller-2 {
 		compatible = "gpio-leds";
 
-		ds3 {
+		led-3 {
 			label = "ds3";
 			gpios = <&pioD 14 GPIO_ACTIVE_HIGH>;
 			linux,default-trigger = "heartbeat";