From: Maximilian Weigand <mweigand2017@gmail.com>
To: Lee Jones <lee@kernel.org>,
Daniel Thompson <daniel.thompson@linaro.org>,
Jingoo Han <jingoohan1@gmail.com>, Helge Deller <deller@gmx.de>,
Pavel Machek <pavel@ucw.cz>, Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Conor Dooley <conor+dt@kernel.org>,
Heiko Stuebner <heiko@sntech.de>
Cc: devicetree@vger.kernel.org, linux-fbdev@vger.kernel.org,
Maximilian Weigand <mweigand@mweigand.net>,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-rockchip@lists.infradead.org, linux-leds@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 3/3] arm64: dts: rockchip: shift boost frequency for rk3566-pinenote backlight
Date: Wed, 14 Jun 2023 21:08:54 +0200 [thread overview]
Message-ID: <20230602-lm3630a_boost_frequency-v1-3-076472036d1a@mweigand.net> (raw)
In-Reply-To: <20230602-lm3630a_boost_frequency-v1-0-076472036d1a@mweigand.net>
From: Maximilian Weigand <mweigand@mweigand.net>
The PineNote exhibits visible flickering of its backlight for certain
brightness settings. Alleviate this by enabling a frequency shift from
500 kHz to 560 kHz for the boost converter of the led driver.
Signed-off-by: Maximilian Weigand <mweigand@mweigand.net>
---
arch/arm64/boot/dts/rockchip/rk3566-pinenote.dtsi | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-pinenote.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-pinenote.dtsi
index 8d61f824c12d..4e4b3bbaa157 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-pinenote.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3566-pinenote.dtsi
@@ -453,6 +453,7 @@ led-controller@36 {
pinctrl-names = "default";
#address-cells = <1>;
#size-cells = <0>;
+ ti,boost_frequency_shift;
led@0 {
reg = <0>;
--
2.39.2
prev parent reply other threads:[~2023-06-15 7:47 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-14 19:08 [PATCH 0/3] backlight: lm3630a: add functionality to change boost converter frequency Maximilian Weigand
2023-06-14 19:08 ` [PATCH 1/3] backlight: lm3630a: add support for changing the boost frequency Maximilian Weigand
2023-06-26 14:39 ` Daniel Thompson
2023-06-14 19:08 ` [PATCH 2/3] dt-bindings: backlight: lm3630a: add entries to control " Maximilian Weigand
2023-06-17 10:12 ` Krzysztof Kozlowski
2023-06-17 16:34 ` Heiko Stübner
2023-06-17 17:42 ` Krzysztof Kozlowski
2023-06-17 18:15 ` Maximilian Weigand
2023-06-14 19:08 ` Maximilian Weigand [this message]
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