linux-kernel - Re: [PATCH] dt-bindings: memory: renesas,rpc-if: Miscellaneous improvements

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Date:   Tue, 20 Jul 2021 10:42:49 -0600
From:   Rob Herring <robh@...nel.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Sergei Shtylyov <sergei.shtylyov@...il.com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        linux-spi <linux-spi@...r.kernel.org>,
        MTD Maling List <linux-mtd@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] dt-bindings: memory: renesas,rpc-if: Miscellaneous improvements

On Fri, Jul 16, 2021 at 1:10 PM Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>
> Hi Rob,
>
> On Fri, Jul 16, 2021 at 8:02 PM Rob Herring <robh@...nel.org> wrote:
> > On Wed, Jul 14, 2021 at 01:30:13PM +0200, Geert Uytterhoeven wrote:
> > >   - Add missing "#{address,size}-cells",
> > >   - Fix rejection of legitimate flash subnodes containing multiple
> > >     compatible values,
> > >   - Add missing list of required properties.
> > >
> > > Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
> > > ---
> > >  .../memory-controllers/renesas,rpc-if.yaml    | 23 ++++++++++++++++---
> > >  1 file changed, 20 insertions(+), 3 deletions(-)
> > >
> > > diff --git a/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml b/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml
> > > index 990489fdd2ac33fe..c0d899a2305361b1 100644
> > > --- a/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml
> > > +++ b/Documentation/devicetree/bindings/memory-controllers/renesas,rpc-if.yaml
> > > @@ -56,17 +56,34 @@ properties:
> > >    resets:
> > >      maxItems: 1
> > >
> > > +  '#address-cells':
> > > +    const: 1
> > > +
> > > +  '#size-cells':
> > > +    const: 0
> > > +
> >
> > spi-controller.yaml already defines this.
>
> spi-controller.yaml says '#address-cells' must be 0 or 1.  As RPC-IF does
> SPI master only, it should be 1.

Yes, but then it says:

allOf:
  - if:
      not:
        required:
          - spi-slave
    then:
      properties:
        "#address-cells":
          const: 1
    else:
      properties:
        "#address-cells":
          const: 0

Rob