From: Martin Kepplinger <martin.kepplinger@puri.sm>
To: robh@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org,
s.hauer@pengutronix.de, kernel@pengutronix.de
Cc: linux-imx@nxp.com, Anson.Huang@nxp.com,
devicetree@vger.kernel.org, kernel@puri.sm,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Martin Kepplinger <martin.kepplinger@puri.sm>,
Marco Felsch <m.felsch@pengutronix.de>
Subject: [PATCH v2 9/9] arm64: dts: librem5-devkit: add lsm9ds1 mount matrix
Date: Tue, 18 Feb 2020 09:49:42 +0100 [thread overview]
Message-ID: <20200218084942.4884-10-martin.kepplinger@puri.sm> (raw)
In-Reply-To: <20200218084942.4884-1-martin.kepplinger@puri.sm>
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 4cb11ed17c24..19ca3b4f802f 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5-devkit.dts
@@ -537,6 +537,9 @@
reg = <0x6a>;
vdd-supply = <®_3v3_p>;
vddio-supply = <®_3v3_p>;
+ mount-matrix = "1", "0", "0",
+ "0", "1", "0",
+ "0", "0", "-1";
};
};
--
2.20.1
prev parent reply other threads:[~2020-02-18 8:51 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-18 8:49 [PATCH v2 0/9] arm64: dts: librem5-devkit: description updates Martin Kepplinger
2020-02-18 8:49 ` [PATCH v2 1/9] arm64: dts: librem5-devkit: add sai2 and sai6 pinctrl definitions Martin Kepplinger
2020-02-24 1:56 ` Shawn Guo
2020-02-18 8:49 ` [PATCH v2 2/9] arm64: dts: librem5-devkit: enable sai2 and sai6 audio interface Martin Kepplinger
2020-02-18 8:49 ` [PATCH v2 3/9] arm64: dts: librem5-devkit: add the simcom 7100 modem and sgtl5000 audio codec Martin Kepplinger
2020-02-24 2:01 ` Shawn Guo
2020-02-18 8:49 ` [PATCH v2 4/9] arm64: dts: librem5-devkit: allow modem to wake the system from suspend Martin Kepplinger
2020-02-24 2:02 ` Shawn Guo
2020-02-18 8:49 ` [PATCH v2 5/9] arm64: dts: librem5-devkit: add a vbus supply to usb0 Martin Kepplinger
2020-02-18 8:49 ` [PATCH v2 6/9] arm64: dts: librem5-devkit: add the regulators for DVFS Martin Kepplinger
2020-02-18 8:49 ` [PATCH v2 7/9] arm64: dts: librem5-devkit: allow the redpine card to be removed Martin Kepplinger
2020-02-18 8:49 ` [PATCH v2 8/9] arm64: dts: librem5-devkit: increase the VBUS current in the kernel Martin Kepplinger
2020-02-18 8:49 ` Martin Kepplinger [this message]
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