boards: nordic: nrf54h20dk: add pwm_led on cpuppr

Added pwmleds node to cpuppr board devicetree and
nordic-ppr snippet to allow running pwm samples.

Signed-off-by: Michał Stasiak <[email protected]>

boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20_cpuppr.dts

@@ -29,6 +29,46 @@
 		zephyr,sram = &cpuppr_code_data;
 		zephyr,shell-uart = &uart135;
 	};
+
+	leds {
+		compatible = "gpio-leds";
+		led0: led_0 {
+			gpios = <&gpio2 9 GPIO_ACTIVE_HIGH>;
+			label = "Green LED 0";
+		};
+		led1: led_1 {
+			gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
+			label = "Green LED 1";
+		};
+		led2: led_2 {
+			gpios = <&gpio2 7 GPIO_ACTIVE_HIGH>;
+			label = "Green LED 2";
+		};
+		led3: led_3 {
+			gpios = <&gpio1 14 GPIO_ACTIVE_HIGH>;
+			label = "Green LED 3";
+		};
+	};
+
+	pwmleds {
+		compatible = "pwm-leds";
+		/*
+		 * LEDs are connected to GPIO Port 9 - pins 0-3. There is no valid hardware
+		 * configuration to pass PWM signal on pis 0 and 1. First valid config is P9.2.
+		 * Signal on PWM130's channel 0 can be passed directly on GPIO Port 9 pin 2.
+		 */
+		pwm_led2: pwm_led_2 {
+			pwms = <&pwm130 0 PWM_MSEC(20) PWM_POLARITY_NORMAL>;
+		};
+	};
+
+	aliases {
+		led0 = &led0;
+		led1 = &led1;
+		led2 = &led2;
+		led3 = &led3;
+		pwm-led0 = &pwm_led2;
+	};
 };
 
 &cpuapp_cpuppr_ipc {
@@ -56,3 +96,10 @@
 	pinctrl-1 = <&uart136_sleep>;
 	pinctrl-names = "default", "sleep";
 };
+
+&pwm130 {
+	status = "okay";
+	pinctrl-0 = <&pwm130_default>;
+	pinctrl-1 = <&pwm130_sleep>;
+	pinctrl-names = "default", "sleep";
+};

snippets/nordic-ppr/soc/nrf54h20_cpuapp.overlay

@@ -10,3 +10,8 @@
 &uart135 {
 	status = "reserved";
 };
+
+&pwm130 {
+	status = "reserved";
+	interrupt-parent = <&cpuppr_clic>;
+};