linux-kernel - [PATCH v5 2/4] arm64: dts: rockchip: Add accelerometer sensor to Pinephone Pro

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Message-Id: <20251124-ppp_light_accel_mag_vol-down-v5-2-f9a10a0a50eb@gmail.com>
Date: Mon, 24 Nov 2025 19:47:01 -0800
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, 
 phone-devel@...r.kernel.org, Rudraksha Gupta <guptarud@...il.com>, 
 Ondrej Jirman <megi@....cz>, Martijn Braam <martijn@...xit.nl>, 
 Kamil Trzciński <ayufan@...fan.eu>, 
 Pavel Machek <pavel@....cz>
Subject: [PATCH v5 2/4] arm64: dts: rockchip: Add accelerometer sensor to
 Pinephone Pro

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

Pinephone Pro uses mpu6500 according to the schematic. This was verified
via `monitor-sensor --accel`. While rotating the device, the output was
correct (eg. when it was face up, left edge was up, vertical, etc.).

Co-developed-by: Martijn Braam <martijn@...xit.nl>
Signed-off-by: Martijn Braam <martijn@...xit.nl>
Co-developed-by: Kamil Trzciński <ayufan@...fan.eu>
Signed-off-by: Kamil Trzciński <ayufan@...fan.eu>
Signed-off-by: Ondrej Jirman <megi@....cz>
Signed-off-by: Rudraksha Gupta <guptarud@...il.com>
Reviewed-by: Pavel Machek <pavel@....cz>
---
 arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
index 2d2858ee149e..f8c74b43ae9f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
@@ -543,7 +543,13 @@ mpu6500@68 {
 		reg = <0x68>;
 		interrupt-parent = <&gpio1>;
 		interrupts = <RK_PC6 IRQ_TYPE_LEVEL_LOW>;
+		vdd-supply = <&vcc_1v8>;
 		vddio-supply = <&vcc_1v8>;
+
+		mount-matrix =
+			"1", "0", "0",
+			"0", "-1", "0",
+			"0", "0", "-1";
 	};
 };
 

-- 
2.52.0