Unverified Commit 8bc8824d authored by Emil Renner Berthing's avatar Emil Renner Berthing Committed by Palmer Dabbelt
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riscv: dts: sifive unleashed: Add PWM controlled LEDs 



This adds the 4 PWM controlled green LEDs to the HiFive Unleashed device
tree. The schematic doesn't specify any special function for the LEDs,
so they're added here without any default triggers and named d1, d2, d3
and d4 just like in the schematic.

Signed-off-by: default avatarEmil Renner Berthing <emil.renner.berthing@canonical.com>
Reviewed-by: default avatarConor Dooley <conor.dooley@microchip.com>
Tested-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20221012110928.352910-1-emil.renner.berthing@canonical.com


Signed-off-by: default avatarPalmer Dabbelt <palmer@rivosinc.com>
parent d14e99bf

arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts

+38 −0
Original line number Diff line number Diff line
@@ -3,6 +3,8 @@ 


#include "fu540-c000.dtsi"

#include <dt-bindings/gpio/gpio.h>

#include <dt-bindings/leds/common.h>

#include <dt-bindings/pwm/pwm.h>



/* Clock frequency (in Hz) of the PCB crystal for rtcclk */

#define RTCCLK_FREQ		1000000
@@ -42,6 +44,42 @@ 
		compatible = "gpio-restart";

		gpios = <&gpio 10 GPIO_ACTIVE_LOW>;

	};



	led-controller {

		compatible = "pwm-leds";



		led-d1 {

			pwms = <&pwm0 0 7812500 PWM_POLARITY_INVERTED>;

			active-low;

			color = <LED_COLOR_ID_GREEN>;

			max-brightness = <255>;

			label = "d1";

		};



		led-d2 {

			pwms = <&pwm0 1 7812500 PWM_POLARITY_INVERTED>;

			active-low;

			color = <LED_COLOR_ID_GREEN>;

			max-brightness = <255>;

			label = "d2";

		};



		led-d3 {

			pwms = <&pwm0 2 7812500 PWM_POLARITY_INVERTED>;

			active-low;

			color = <LED_COLOR_ID_GREEN>;

			max-brightness = <255>;

			label = "d3";

		};



		led-d4 {

			pwms = <&pwm0 3 7812500 PWM_POLARITY_INVERTED>;

			active-low;

			color = <LED_COLOR_ID_GREEN>;

			max-brightness = <255>;

			label = "d4";

		};

	};

};



&uart0 {