Re: [PATCH 3/9] dt-bindings: crypto: Add DT bindings documentation for sun8i-ce Crypto Engine

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Hi Corentin,

On Wed, Sep 11, 2019 at 08:31:58PM +0200, Corentin Labbe wrote:
> 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@xxxxxxxxx>
> > > ---
> > >  .../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

Add minItems: 2  and maxItems: 3 at the same level than items

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

And here as well

Something I missed earlier though was that we've tried to unify as
much as possible the ahb / apb / axi clocks around the bus name, it
would be great if you could do it.

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

You don't need to duplicate the min and maxItems here

Maxime

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