linux-kernel - Re: [PATCH v1 2/3] mfd: tps65086: Make interrupt line optional

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Date:   Thu, 15 Jul 2021 13:27:29 +0200
From:   Emil Renner Berthing <kernel@...il.dk>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     Rob Herring <robh@...nel.org>, Sebastian Reichel <sre@...nel.org>,
        "Andrew F. Davis" <afd@...com>, devicetree@...r.kernel.org,
        linux-pm@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 2/3] mfd: tps65086: Make interrupt line optional

On Thu, 15 Jul 2021 at 13:13, Lee Jones <lee.jones@...aro.org> wrote:
> On Wed, 14 Jul 2021, Rob Herring wrote:
> > On Tue, Jul 13, 2021 at 10:18:01AM +0100, Lee Jones wrote:
> > > On Sat, 26 Jun 2021, Emil Renner Berthing wrote:
> > >
> > > > The BeagleV Starlight v0.9 board[1] doesn't have the IRQB line routed to
> > > > the SoC, but it is still useful to be able to reach the PMIC over I2C
> > >
> > > What is still useful?
> > >
> > > The GPIO and Regulator drivers?
> > >
> > > > for the other functionality it provides.
> > > >
> > > > [1] https://github.com/beagleboard/beaglev-starlight
> > > >
> > > > Signed-off-by: Emil Renner Berthing <kernel@...il.dk>
> > > > ---
> > > >  .../devicetree/bindings/mfd/ti,tps65086.yaml  |  3 ---
> > > >  drivers/mfd/tps65086.c                        | 21 ++++++++++---------
> > > >  2 files changed, 11 insertions(+), 13 deletions(-)
> > > >
> > > > diff --git a/Documentation/devicetree/bindings/mfd/ti,tps65086.yaml b/Documentation/devicetree/bindings/mfd/ti,tps65086.yaml
> > > > index ba638bd10a58..4b629fcc0df9 100644
> > > > --- a/Documentation/devicetree/bindings/mfd/ti,tps65086.yaml
> > > > +++ b/Documentation/devicetree/bindings/mfd/ti,tps65086.yaml
> > > > @@ -87,9 +87,6 @@ additionalProperties: false
> > > >  required:
> > > >    - compatible
> > > >    - reg
> > > > -  - interrupts
> > > > -  - interrupt-controller
> > > > -  - '#interrupt-cells'
> > >
> > > I can't say that I've been keeping up with the latest DT binding
> > > changes, but shouldn't these lines be relocated into some kind of
> > > optional listing?
> > >
> > > Or are optional properties omitted from documentation?
> >
> > Optional properties are the ones not listed in the 'required' list.
>
> Ah, so they are already documented somewhere else in the file?

Yes, just a few lines above.