linux-kernel - Re: [PATCH] arm64: dts: rockchip: Raise Pinebook Pro's panel backlight PWM frequency

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Message-Id: <172332716790.290487.980895423301498235.b4-ty@sntech.de>
Date: Sat, 10 Aug 2024 23:59:32 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: Dragan Simic <dsimic@...jaro.org>,
	linux-rockchip@...ts.infradead.org
Cc: Heiko Stuebner <heiko@...ech.de>,
	stable@...r.kernel.org,
	devicetree@...r.kernel.org,
	conor+dt@...nel.org,
	krzk+dt@...nel.org,
	linux-kernel@...r.kernel.org,
	robh@...nel.org,
	Nikola Radojevic <nikola@...ojevic.rs>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH] arm64: dts: rockchip: Raise Pinebook Pro's panel backlight PWM frequency

On Sun, 4 Aug 2024 23:10:24 +0200, Dragan Simic wrote:
> Increase the frequency of the PWM signal that drives the LED backlight of
> the Pinebook Pro's panel, from about 1.35 KHz (which equals to the PWM
> period of 740,740 ns), to exactly 8 kHz (which equals to the PWM period of
> 125,000 ns).  Using a higher PWM frequency for the panel backlight, which
> reduces the flicker, can only be beneficial to the end users' eyes.
> 
> On top of that, increasing the backlight PWM signal frequency reportedly
> eliminates the buzzing emitted from the Pinebook Pro's built-in speakers
> when certain backlight levels are set, which cause some weird interference
> with some of the components of the Pinebook Pro's audio chain.
> 
> [...]

Applied, thanks!

[1/1] arm64: dts: rockchip: Raise Pinebook Pro's panel backlight PWM frequency
      commit: 8c51521de18755d4112a77a598a348b38d0af370

Best regards,
-- 
Heiko Stuebner <heiko@...ech.de>