[PATCH 4/5] arm64: dts: rk3399-pinephone-pro: Add mount-matrix for magnetometer
Rudraksha Gupta via B4 Relay
devnull+guptarud.gmail.com at kernel.org
Sat Sep 20 23:41:06 PDT 2025
From: "Leonardo G. Trombetta" <lgtrombetta at gmx.com>
After experimenting with the magnetometer on the Pinephone Pro I found
out the mount-matrix currently reported by the AF8133J driver is just
the identity matrix (no rotation), which is wrong. It would seem to me
that there is currently no `mount-matrix` info and that's why the driver
reports a trivial answer. As far as I can tell from my tests, a 90
degree clockwise rotation in the XY plane would align it properly.
Signed-off-by: Leonardo G. Trombetta <lgtrombetta at gmx.com>
Signed-off-by: Rudraksha Gupta <guptarud at gmail.com>
---
arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
index 8ff64004b0a6e3b472077516ab360c29852d7c9f..9442ca4c9ae47d639ed6139c370bacf1bffa65b6 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
@@ -561,6 +561,11 @@ af8133j: compass at 1c {
reset-gpios = <&gpio1 RK_PA1 GPIO_ACTIVE_LOW>;
avdd-supply = <&vcc_3v0>;
dvdd-supply = <&vcc_1v8>;
+
+ mount-matrix =
+ "0", "1", "0",
+ "-1", "0", "0",
+ "0", "0", "1";
};
};
--
2.51.0
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