From 7bcba861019a4fe5a4aecd9403fc29d64eea25ae Mon Sep 17 00:00:00 2001
From: Vincent-FK <vincent.buso@funkey-project.com>
Date: Mon, 1 Mar 2021 18:22:13 +0100
Subject: [PATCH] backlight pwm period changed to 40000us to fix high pitch
 noise issue at 10Khz

---
 arch/arm/boot/dts/sun8i-v3s-funkey.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun8i-v3s-funkey.dts b/arch/arm/boot/dts/sun8i-v3s-funkey.dts
index 84396e1ca53203..ddde047bf0188e 100644
--- a/arch/arm/boot/dts/sun8i-v3s-funkey.dts
+++ b/arch/arm/boot/dts/sun8i-v3s-funkey.dts
@@ -58,7 +58,7 @@
 
 	backlight: backlight {
 		compatible = "pwm-backlight";
-		pwms = <&pwm 0 100000 1>;
+		pwms = <&pwm 0 40000 1>;
 		brightness-levels = <0 1 2 3 8 14 21 32 46 60 80 100>; //2.2 div factor
 		default-brightness-level = <11>;
 		power-supply = <&reg_vcc5v0>;