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

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Message-ID: <20190225093222.40533238@lwn.net>
Date:   Mon, 25 Feb 2019 09:32:22 -0700
From:   Jonathan Corbet <corbet@....net>
To:     "H. Nikolaus Schaller" <hns@...delico.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        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>,
        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, devicetree@...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

On Thu, 21 Feb 2019 18:02:47 +0100
"H. Nikolaus Schaller" <hns@...delico.com> wrote:

> From: Linus Walleij <linus.walleij@...aro.org>
> 
> 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>
> ---
>  .../devicetree/bindings/iio/mount-matrix.txt  | 204 ++++++++++++++++++
>  1 file changed, 204 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/mount-matrix.txt

So forgive me, but I have to ask: what are the chances of getting this
file in RST format?  It's 99% of the way there now, finishing the job
would allow it to be integrated into our docs tree.

It should probably have an SPDX line too.

Thanks,

jon