linux-kernel - [PATCH v2 5/5] arm64: dts: rk3399-pinephone-pro: Fix voltage threshold for volume down key

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Message-Id: <20250921-ppp_light_accel_mag_vol-down-v2-5-e6bcc6ca74ae@gmail.com>
Date: Sun, 21 Sep 2025 01:04:23 -0700
From: Rudraksha Gupta via B4 Relay <devnull+guptarud.gmail.com@...nel.org>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Rudraksha Gupta <guptarud@...il.com>, Ondrej Jirman <megi@....cz>
Subject: [PATCH v2 5/5] arm64: dts: rk3399-pinephone-pro: Fix voltage
 threshold for volume down key

From: Ondrej Jirman <megi@....cz>

U-Boot and Linux use different algorithms for determining voltage ranges
for comparison. Pick value that will work with both.

Signed-off-by: Ondrej Jirman <megi@....cz>
Signed-off-by: Rudraksha Gupta <guptarud@...il.com>
---
 arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
index 0a4121b05d36c5a7e05eddbd3514a11ae4f7d3eb..4e6df664d780ed4798015db6b2fe79bf7c4e4c00 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
@@ -46,7 +46,7 @@ button-up {
 		button-down {
 			label = "Volume Down";
 			linux,code = <KEY_VOLUMEDOWN>;
-			press-threshold-microvolt = <600000>;
+			press-threshold-microvolt = <400000>;
 		};
 	};
 

-- 
2.51.0