linux-kernel - Re: [PATCH v3 5/6] Documentation: bindings: add documentation for ir-spi device driver

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Message-id: <20161104042838.kwjv66ldun6g4hlv@gangnam.samsung>
Date:   Fri, 04 Nov 2016 13:28:38 +0900
From:   Andi Shyti <andi.shyti@...sung.com>
To:     Jacek Anaszewski <j.anaszewski@...sung.com>
Cc:     Mauro Carvalho Chehab <mchehab@....samsung.com>,
        Sean Young <sean@...s.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Richard Purdie <rpurdie@...ys.net>,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-leds@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/6] Documentation: bindings: add documentation for
 ir-spi device driver

Hi Jacek,

> > > Only DT bindings of LED class drivers should be placed in
> > > Documentation/devicetree/bindings/leds. Please move it to the
> > > media bindings.
> > 
> > that's where I placed it first, but Rob asked me to put it in the
> > LED directory and Cc the LED mailining list.
> > 
> > That's the discussion of the version 2:
> > 
> > https://lkml.org/lkml/2016/9/12/380
> > 
> > Rob, Jacek, could you please agree where I can put the binding?
> 
> I'm not sure if this is a good approach. I've noticed also that
> backlight bindings have been moved to leds, whereas they don't look
> similarly.
> 
> We have common.txt LED bindings, that all LED class drivers' bindings
> have to follow. Neither backlight bindings nor these ones do that,
> which introduces some mess.
> 
> Eventually adding a sub-directory, e.g. remote_control could make it
> somehow logically justified, but still - shouldn't bindings be
> placed in the documentation directory related to the subsystem of the
> driver they are predestined to?

In principle I agree with you, also because I understood that the
led kind of bindings are for those LEDs which main function is to
emit light.

There is no need for a remote control directory, because there is
one already under bindings/media, where all the remote
controllers are placed.

Now this is a matter of interpretation, is this an IR LED used by
the driver as remote controller or is this a remote controller
with just an IR LED?

In any case, I will wait for you and Rob to agree where is best
to place the binding, then I will send a new version.

Thanks,
Andi