Messages in this thread Patch in this message | | | From | Martin Kepplinger <> | Subject | [PATCH v4 8/8] arm64: dts: librem5-devkit: add lsm9ds1 mount matrix | Date | Thu, 27 Feb 2020 14:17:33 +0100 |
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The IMU chip on the librem5-devkit is not mounted at the "natural" place that would match normal phone orientation (see the documentation for the details about what that is).
Since the lsm9ds1 driver supports providing a mount matrix, we can describe the orientation on the board in the dts:
Create a right-handed coordinate system (x * -1; see the datasheet for the axis) and rotate 180 degrees around the y axis because the device sits on the back side from the display.
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> --- arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts index 72c622ffe6de..10eca94194be 100644 --- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts +++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts @@ -539,6 +539,9 @@ reg = <0x6a>; vdd-supply = <®_3v3_p>; vddio-supply = <®_3v3_p>; + mount-matrix = "1", "0", "0", + "0", "1", "0", + "0", "0", "-1"; }; }; -- 2.20.1
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