linux-kernel - Re: [PATCH v2 02/10] iio: document bindings for mounting matrices

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Message-ID: <CACRpkdZ5Z9VY457Fywt6X=K5XONgiPVcwbwSkwL_U+GCqZ+u5g@mail.gmail.com>
Date:   Tue, 23 Jul 2019 09:42:59 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     "H. Nikolaus Schaller" <hns@...delico.com>
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Charles Keepax <ckeepax@...nsource.cirrus.com>,
        Song Qiang <songqiang1304521@...il.com>,
        Jean-Baptiste Maneyrol <jmaneyrol@...ensense.com>,
        Martin Kelly <mkelly@...o.com>,
        Jonathan Marek <jonathan@...ek.ca>,
        Brian Masney <masneyb@...tation.org>,
        Stephan Gerhold <stephan@...hold.net>,
        Discussions about the Letux Kernel 
        <letux-kernel@...nphoenux.org>, Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        linux-iio@...r.kernel.org,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Gregor Boirie <gregor.boirie@...rot.com>,
        Sebastian Reichel <sre@...nel.org>,
        Samu Onkalo <samu.onkalo@...el.com>
Subject: Re: [PATCH v2 02/10] iio: document bindings for mounting matrices

Hi H. Nikolaus,

On Thu, Feb 21, 2019 at 6:03 PM H. Nikolaus Schaller <hns@...delico.com> wrote:

> From: Linus Walleij <linus.walleij@...aro.org>

It is fair for you to change authorship to yourself at this point.
Just keeping my Signed-off-by is sufficient.

> The mounting matrix for sensors was introduced in
> commit dfc57732ad38 ("iio:core: mounting matrix support")
>
> However the device tree bindings are very terse and since this is
> a widely applicable property, we need a proper binding for it
> that the other bindings can reference. This will also be useful
> for other operating systems and sensor engineering at large.
>
> I think all 3D sensors should support it, the current situation
> is probably that the mounting information is confined in magic
> userspace components rather than using the mounting matrix, which
> is not good for portability and reuse.
>
> Cc: Linus Walleij <linus.walleij@...aro.org>
> Cc: Gregor Boirie <gregor.boirie@...rot.com>
> Cc: Sebastian Reichel <sre@...nel.org>
> Cc: Samu Onkalo <samu.onkalo@...el.com>
> Cc: devicetree@...r.kernel.org
> Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>

Did this patch fall off somewhere? I think it's really neat, even in this
form it is great help for developers. If you want I can try picking up the
comments and resend it.

Linus Walleij