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 <20210716180253.GA3684196@robh.at.kernel.org>
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From:   Geert Uytterhoeven <geert@linux-m68k.org>
Date:   Fri, 16 Jul 2021 21:09:47 +0200
Message-ID: <CAMuHMdWXCJd0NzH4km+oXBziBct31DCb53fmk3RhAk-+29Zkew@mail.gmail.com>
Subject: Re: [PATCH] dt-bindings: memory: renesas,rpc-if: Miscellaneous improvements
To:     Rob Herring <robh@kernel.org>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
        Sergei Shtylyov <sergei.shtylyov@gmail.com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
        linux-spi <linux-spi@vger.kernel.org>,
        MTD Maling List <linux-mtd@lists.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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Hi Rob,

On Fri, Jul 16, 2021 at 8:02 PM Rob Herring <robh@kernel.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@glider.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.

Don't remember why I added the '#size-cells' too. Perhaps for symmetry?

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds