linux-kernel - Re: [PATCH 1/2] arm64: dts: Add a device tree for the Librem5 phone

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Message-ID: <c8cebbbf-8348-6ecb-306c-be124db04876@puri.sm>
Date:   Fri, 29 May 2020 20:20:54 +0200
From:   Martin Kepplinger <martin.kepplinger@...i.sm>
To:     Pavel Machek <pavel@....cz>
Cc:     robh@...nel.org, kernel@...i.sm, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        linux-imx@....com, mchehab@...nel.org, Anson.Huang@....com,
        agx@...xcpu.org, angus@...ea.ca, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] arm64: dts: Add a device tree for the Librem5 phone

On 29.05.20 20:07, Pavel Machek wrote:
> Hi!
> 
> Plus, do we need calibration matrix for magnetometer?

I guess so. It's not a calibration matrix, it's the mount matrix that
tells you how the chip is placed on the PCB relative to a "natural"
orientation, see
https://github.com/torvalds/linux/blob/master/Documentation/ABI/testing/sysfs-bus-iio#L1638

> 
> Best regards,
> 								Pavel
>