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Date:   Fri, 22 Feb 2019 17:42:44 -0600
From:   Rob Herring <robh@kernel.org>
To:     "H. Nikolaus Schaller" <hns@goldelico.com>
Cc:     Linus Walleij <linus.walleij@linaro.org>,
        Jonathan Cameron <jic23@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        "H. Nikolaus Schaller" <hns@goldelico.com>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
        Charles Keepax <ckeepax@opensource.cirrus.com>,
        Song Qiang <songqiang1304521@gmail.com>,
        Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>,
        Martin Kelly <mkelly@xevo.com>,
        Jonathan Marek <jonathan@marek.ca>,
        Brian Masney <masneyb@onstation.org>,
        Stephan Gerhold <stephan@gerhold.net>,
        letux-kernel@openphoenux.org, Hartmut Knaack <knaack.h@gmx.de>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
        linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Gregor Boirie <gregor.boirie@parrot.com>,
        Sebastian Reichel <sre@kernel.org>,
        Samu Onkalo <samu.onkalo@intel.com>
Subject: Re: [PATCH v2 02/10] iio: document bindings for mounting matrices
Message-ID: <20190222234244.GA19838@bogus>
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On Thu, 21 Feb 2019 18:02:47 +0100, "H. Nikolaus Schaller" wrote:
> From: Linus Walleij <linus.walleij@linaro.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@linaro.org>
> Cc: Gregor Boirie <gregor.boirie@parrot.com>
> Cc: Sebastian Reichel <sre@kernel.org>
> Cc: Samu Onkalo <samu.onkalo@intel.com>
> Cc: devicetree@vger.kernel.org
> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
> Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
> ---
>  .../devicetree/bindings/iio/mount-matrix.txt  | 204 ++++++++++++++++++
>  1 file changed, 204 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/mount-matrix.txt
> 

Reviewed-by: Rob Herring <robh@kernel.org>