linux-kernel - Re: [PATCH v2 1/4] dt-bindings: input: gpio-vibrator: Don't require enable-gpios

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Date:   Tue, 12 May 2020 16:25:05 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     Ondřej Jirman <megous@...ous.com>,
        linux-sunxi@...glegroups.com, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>, Luca Weiss <luca@...tu.xyz>,
        Tomas Novotny <tomas@...otny.cz>, linux-input@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v2 1/4] dt-bindings: input: gpio-vibrator: Don't require
 enable-gpios

On Wed, May 13, 2020 at 01:05:57AM +0200, Ondřej Jirman wrote:
> On Tue, May 12, 2020 at 03:52:12PM -0700, Dmitry Torokhov wrote:
> > On Wed, May 13, 2020 at 12:22:02AM +0200, Ondrej Jirman wrote:
> > > It is possible to turn the motor on/off just by enabling/disabling
> > > the vcc-supply.
> > > 
> > > Signed-off-by: Ondrej Jirman <megous@...ous.com>
> > > Acked-by: Rob Herring <robh@...nel.org>
> > > ---
> > >  Documentation/devicetree/bindings/input/gpio-vibrator.yaml | 1 -
> > >  1 file changed, 1 deletion(-)
> > > 
> > > diff --git a/Documentation/devicetree/bindings/input/gpio-vibrator.yaml b/Documentation/devicetree/bindings/input/gpio-vibrator.yaml
> > > index 2384465eaa19..c700b640bd53 100644
> > > --- a/Documentation/devicetree/bindings/input/gpio-vibrator.yaml
> > > +++ b/Documentation/devicetree/bindings/input/gpio-vibrator.yaml
> > > @@ -24,7 +24,6 @@ properties:
> > >  
> > >  required:
> > >    - compatible
> > > -  - enable-gpios
> > 
> > Hmm we need at least one of the 2 (gpio and supply). Should we encode it
> > in the binding?
> 
> Not sure how to encode either one or the other property being required, but
> not both at once.
> 
> Maybe I can add a supply-vibrator compatible to the driver and binding and
> make requirements dependent on the compatible?

Rob is our bindings overlord... I'll defer to him here.

Thanks.

-- 
Dmitry