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SubjectRe: [PATCH 2/3] Input: rotary-encoder-counter: add DT bindings
On Tue, Apr 07, 2020 at 04:22:38PM +0200, Maxime Ripard wrote:
> On Tue, Apr 07, 2020 at 01:03:39PM +0200, Kamel Bouhara wrote:
> > > On Mon, Apr 06, 2020 at 05:58:05PM +0200, Kamel Bouhara wrote:
> > > > Add dt binding for the counter variant of the rotary encoder driver.
> > > >
> > > > Signed-off-by: Kamel Bouhara <kamel.bouhara@bootlin.com>
> > > > ---
> > > > .../input/rotary-encoder-counter.yaml | 67 +++++++++++++++++++
> > > > 1 file changed, 67 insertions(+)
> > > > create mode 100644 Documentation/devicetree/bindings/input/rotary-encoder-counter.yaml
> > > >
> > > > diff --git a/Documentation/devicetree/bindings/input/rotary-encoder-counter.yaml b/Documentation/devicetree/bindings/input/rotary-encoder-counter.yaml
> > > > new file mode 100644
> > > > index 000000000000..a59f7c1faf0c
> > > > --- /dev/null
> > > > +++ b/Documentation/devicetree/bindings/input/rotary-encoder-counter.yaml
> > > > @@ -0,0 +1,67 @@
> > > > +# SPDX-License-Identifier: GPL-2.0
> > >
> > > Bindings are usually used by other OS's, so you should consider
> > > putting it under a more permissive license, usually that would be GPL2
> > > and the BSD-2-Clause
> >
> > Well to be honest I just looked into an existing binding and I guess
> > the wrong one :).
>
> Not the wrong ones, but the old ones :)
>
> It's painful to change a license on existing files, whereas it's
> pretty easy to mention it during review.
>

Alright.

> > > > +%YAML 1.2
> > > > +---
> > > > +$id: http://devicetree.org/schemas/input/rotary-encoder-counter.yaml#
> > > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > > +
> > > > +title: Rotary Encoder Counter
> > > > +
> > > > +maintainers:
> > > > + - Kamel Bouhara <kamel.bouhara@bootlin.com>
> > > > +
> > > > +description:
> > > > + Registers a Rotary encoder connected through a counter device.
> > >
> > > You shouldn't really describe the action here, but more what the
> > > binding is about. The registration will not depend on the presence of
> > > the node following that binding, but rather on whether or not the OS
> > > that uses it has support for it.
> > >
> >
> > Then shall it be better with just :
> > "A rotary encoder device using a generic counter interface." ?
>
> The generic counter interface is a Linux-only stuff though, some other
> OS might want to implement something else. Something like "based on a
> counter"?
>

Indeed, that's fair enough.

Thanks.

> Maxime



--
Kamel Bouhara, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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