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From 2c2d8ac8c124a2938c9326c14b2dffd46d76b4a8 Mon Sep 17 00:00:00 2001
From: David Abdurachmanov <david.abdurachmanov@sifive.com>
Date: Mon, 13 Sep 2021 02:15:37 -0700
Subject: [PATCH 3/7] riscv: sifive: unmatched: define PWM LEDs
Add D2 (RGB) and D12 (green) LEDs for SiFive Unmatched board.
Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com>
---
.../riscv/boot/dts/sifive/hifive-unmatched-a00.dts | 41 ++++++++++++++++++++++
1 file changed, 41 insertions(+)
--- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
+++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
@@ -4,6 +4,8 @@
#include "fu740-c000.dtsi"
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.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
@@ -31,6 +33,45 @@
soc {
};
+ pwmleds {
+ compatible = "pwm-leds";
+ green-d12 {
+ label = "green:d12";
+ color = <LED_COLOR_ID_GREEN>;
+ pwms = <&pwm0 0 7812500 PWM_POLARITY_INVERTED>;
+ active-low = <1>;
+ max-brightness = <255>;
+ linux,default-trigger = "none";
+ };
+
+ green-d2 {
+ label = "green:d2";
+ color = <LED_COLOR_ID_GREEN>;
+ pwms = <&pwm0 1 7812500 PWM_POLARITY_INVERTED>;
+ active-low = <1>;
+ max-brightness = <255>;
+ linux,default-trigger = "none";
+ };
+
+ red-d2 {
+ label = "red:d2";
+ color = <LED_COLOR_ID_RED>;
+ pwms = <&pwm0 2 7812500 PWM_POLARITY_INVERTED>;
+ active-low = <1>;
+ max-brightness = <255>;
+ linux,default-trigger = "none";
+ };
+
+ blue-d2 {
+ label = "blue:d2";
+ color = <LED_COLOR_ID_BLUE>;
+ pwms = <&pwm0 3 7812500 PWM_POLARITY_INVERTED>;
+ active-low = <1>;
+ max-brightness = <255>;
+ linux,default-trigger = "none";
+ };
+ };
+
hfclk: hfclk {
#clock-cells = <0>;
compatible = "fixed-clock";
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