boards: nordic: Add PWM support for LEDs on nRF54 DKs (bb4c92af) · Commits · Wenxi XU / zephyr

boards/nordic/nrf54h20dk/nrf54h20dk_nrf54h20-pinctrl.dtsi

+13 −0

Original line number	Diff line number	Diff line
		@@ -66,4 +66,17 @@
		<NRF_PSEL(CAN_TX, 9, 5)>;
		};
		};

		/omit-if-no-ref/ pwm130_default: pwm130_default {
		group1 {
		psels = <NRF_PSEL(PWM_OUT0, 9, 2)>;
		};
		};

		/omit-if-no-ref/ pwm130_sleep: pwm130_sleep {
		group1 {
		psels = <NRF_PSEL(PWM_OUT0, 9, 2)>;
		low-power-enable;
		};
		};
		};

+21 −0

Original line number	Diff line number	Diff line
		@@ -36,6 +36,7 @@
		led2 = &led2;
		led3 = &led3;
		resetinfo = &cpuapp_resetinfo;
		pwm-led0 = &pwm_led2;
		sw0 = &button0;
		sw1 = &button1;
		sw2 = &button2;
		@@ -95,6 +96,18 @@
		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>;
		};
		};
		};

		&cpuapp_ram0x_region {
		@@ -261,3 +274,11 @@ zephyr_udc0: &usbhs {
		pinctrl-0 = <&can120_default>;
		pinctrl-names = "default";
		};

		&pwm130 {
		status = "okay";
		pinctrl-0 = <&pwm130_default>;
		pinctrl-1 = <&pwm130_sleep>;
		pinctrl-names = "default", "sleep";
		memory-regions = <&cpuapp_dma_region>;
		};

+21 −0

Original line number	Diff line number	Diff line
		@@ -27,6 +27,19 @@
		};
		};

		pwmleds {
		compatible = "pwm-leds";
		/*
		* PWM signal can be exposed on GPIO pin only within same domain.
		* There is only one domain which contains both PWM and GPIO:
		* PWM20/21/22 and GPIO Port P1.
		* Only LEDs connected to P1 can work with PWM, for example LED1.
		*/
		pwm_led1: pwm_led_1 {
		pwms = <&pwm20 0 PWM_MSEC(20) PWM_POLARITY_NORMAL>;
		};
		};

		buttons {
		compatible = "gpio-keys";
		button0: button_0 {
		@@ -56,6 +69,7 @@
		led1 = &led1;
		led2 = &led2;
		led3 = &led3;
		pwm-led0 = &pwm_led1;
		sw0 = &button0;
		sw1 = &button1;
		sw2 = &button2;
		@@ -77,3 +91,10 @@
		pinctrl-1 = <&uart30_sleep>;
		pinctrl-names = "default", "sleep";
		};

		&pwm20 {
		status = "okay";
		pinctrl-0 = <&pwm20_default>;
		pinctrl-1 = <&pwm20_sleep>;
		pinctrl-names = "default", "sleep";
		};

+13 −0

Original line number	Diff line number	Diff line
		@@ -64,4 +64,17 @@
		low-power-enable;
		};
		};

		/omit-if-no-ref/ pwm20_default: pwm20_default {
		group1 {
		psels = <NRF_PSEL(PWM_OUT0, 1, 10)>;
		};
		};

		/omit-if-no-ref/ pwm20_sleep: pwm20_sleep {
		group1 {
		psels = <NRF_PSEL(PWM_OUT0, 1, 10)>;
		low-power-enable;
		};
		};
		};

+15 −0

Original line number	Diff line number	Diff line
		@@ -35,3 +35,18 @@
		&button3 {
		gpios = <&gpio2 10 (GPIO_PULL_UP \| GPIO_ACTIVE_LOW)>;
		};

		&pinctrl {
		/omit-if-no-ref/ pwm20_default: pwm20_default {
		group1 {
		psels = <NRF_PSEL(PWM_OUT0, 1, 8)>;
		};
		};

		/omit-if-no-ref/ pwm20_sleep: pwm20_sleep {
		group1 {
		psels = <NRF_PSEL(PWM_OUT0, 1, 8)>;
		low-power-enable;
		};
		};
		};