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Date:   Fri, 22 Jan 2021 10:06:43 -0600
From:   Rob Herring <robh@kernel.org>
To:     Paul Cercueil <paul@crapouillou.net>
Cc:     Kishon Vijay Abraham I <kishon@ti.com>,
        Vinod Koul <vkoul@kernel.org>, od@zcrc.me,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings/phy: ingenic: Add compatibles for??
 JZ4760(B) SoCs
Message-ID: <20210122160643.GA865022@robh.at.kernel.org>
References: <20210120115945.29046-1-paul@crapouillou.net>
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 <SIBCNQ.SZL9QXM6XX3N2@crapouillou.net>
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On Fri, Jan 22, 2021 at 02:42:28PM +0000, Paul Cercueil wrote:
> Hi Rob,
> 
> Le ven. 22 janv. 2021 ? 8:35, Rob Herring <robh+dt@kernel.org> a ?crit :
> > On Wed, Jan 20, 2021 at 5:59 AM Paul Cercueil <paul@crapouillou.net>
> > wrote:
> > > 
> > >  Add the ingenic,jz4760-phy and ingenic,jz4760b-phy compatible
> > > strings,
> > >  and make the ingenic,jz4770-phy compatible string require
> > >  ingenic,jz4760-phy as a fallback, since both work the same, and the
> > >  JZ4760 SoC is older.
> > > 
> > >  Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> > >  ---
> > >   .../bindings/phy/ingenic,phy-usb.yaml         | 22
> > > ++++++++++++-------
> > >   1 file changed, 14 insertions(+), 8 deletions(-)
> > > 
> > >  diff --git
> > > a/Documentation/devicetree/bindings/phy/ingenic,phy-usb.yaml
> > > b/Documentation/devicetree/bindings/phy/ingenic,phy-usb.yaml
> > >  index 0fd93d71fe5a..3c65dfcf352b 100644
> > >  --- a/Documentation/devicetree/bindings/phy/ingenic,phy-usb.yaml
> > >  +++ b/Documentation/devicetree/bindings/phy/ingenic,phy-usb.yaml
> > >  @@ -15,13 +15,19 @@ properties:
> > >       pattern: '^usb-phy@.*'
> > > 
> > >     compatible:
> > >  -    enum:
> > >  -      - ingenic,jz4770-phy
> > >  -      - ingenic,jz4775-phy
> > >  -      - ingenic,jz4780-phy
> > >  -      - ingenic,x1000-phy
> > >  -      - ingenic,x1830-phy
> > >  -      - ingenic,x2000-phy
> > >  +    oneOf:
> > >  +      - enum:
> > >  +        - ingenic,jz4760-phy
> > 
> > This should be 2 more spaces indentation. Indent is always 2 more than
> > the above keyword and ignores '-'.
> 
> Pretty confusing. But alright.

TBC, either way is functional and these are the 2 main styles, so we 
picked one. In some sequences, it's easy to miss a '-' where a space 
would also be valid. For example:

items:
- items:
    enum: ...

vs:

items:
  items:
    enum: ...

Both are valid (as items can be a list or sub-schema).

Rob