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

H. Nikolaus Schaller hns at goldelico.com
Tue Jul 23 11:46:49 CEST 2019

Hi Linus,

> Am 23.07.2019 um 09:42 schrieb Linus Walleij <linus.walleij at linaro.org>:
> Hi H. Nikolaus,
> On Thu, Feb 21, 2019 at 6:03 PM H. Nikolaus Schaller <hns at goldelico.com> wrote:
>> From: Linus Walleij <linus.walleij at linaro.org>
> It is fair for you to change authorship to yourself at this point.
> Just keeping my Signed-off-by is sufficient.

Well, I think my contribution is less than yours :)

>> 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 at linaro.org>
>> Cc: Gregor Boirie <gregor.boirie at parrot.com>
>> Cc: Sebastian Reichel <sre at kernel.org>
>> Cc: Samu Onkalo <samu.onkalo at intel.com>
>> Cc: devicetree at vger.kernel.org
>> Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
>> Signed-off-by: H. Nikolaus Schaller <hns at goldelico.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.

Well, I had planned to review it again and promised to send out a new
version. But as usual this ToDo becomes hidden by always more important

So I am fine if you can pick comments and resend it. I think there will
be others who help to make it even better in the future if the mount matrix
is more widely used.


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