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Date:   Wed, 11 Sep 2019 20:31:58 +0200
From:   Corentin Labbe <clabbe.montjoie@...il.com>
To:     Maxime Ripard <mripard@...nel.org>
Cc:     davem@...emloft.net, herbert@...dor.apana.org.au,
        linux@...linux.org.uk, mark.rutland@....com, robh+dt@...nel.org,
        wens@...e.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-crypto@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH 3/9] dt-bindings: crypto: Add DT bindings documentation
 for sun8i-ce Crypto Engine

On Sat, Sep 07, 2019 at 07:01:16AM +0300, Maxime Ripard wrote:
> On Fri, Sep 06, 2019 at 08:45:45PM +0200, Corentin Labbe wrote:
> > This patch adds documentation for Device-Tree bindings for the
> > Crypto Engine cryptographic accelerator driver.
> >
> > Signed-off-by: Corentin Labbe <clabbe.montjoie@...il.com>
> > ---
> >  .../bindings/crypto/allwinner,sun8i-ce.yaml   | 84 +++++++++++++++++++
> >  1 file changed, 84 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml b/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml
[...]
> > +else:
> > +  clocks:
> > +    items:
> > +      - description: Bus clock
> > +      - description: Module clock
> > +
> > +  clock-names:
> > +    items:
> > +      - const: ahb
> > +      - const: mod
> > +
> > +  resets:
> > +    maxItems: 1
> > +
> > +  reset-names:
> > +    const: ahb
> 
> This prevents the usage of the additionalProperties property, which
> you should really use.
> 
> What you can do instead is moving the clocks and clock-names
> description under properties, with a minItems of 2 and a maxItems of
> 3. Then you can restrict the length of that property to either 2 or 3
> depending on the case here.
> 

Hello

I fail to do this.
I do the following (keeped only clock stuff)
properties:

  clocks:
    items:
      - description: Bus clock
      - description: Module clock
      - description: MBus clock

  clock-names:
    items:
      - const: ahb
      - const: mod
      - const: mbus

if:
  properties:
    compatible:
      items:
        const: allwinner,sun50i-h6-crypto
then:
  properties:
      clocks:
        minItems: 3
        maxItems: 3
      clock-names:
        minItems: 3
        maxItems: 3
else:
  properties:
      clocks:
        minItems: 2
        maxItems: 2
      clock-names:
        minItems: 2
        maxItems: 2

With this, the dtb_check keep complain that a64 have two short clocks.

Regards

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