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Message-ID: <4894227.31r3eYUQgx@radijator>
Date: Wed, 31 Jan 2024 22:08:07 +0100
From: Duje Mihanović <duje.mihanovic@...le.hr>
To: Rob Herring <robh@...nel.org>
Cc: Conor Dooley <conor@...nel.org>, Vinod Koul <vkoul@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 dmaengine@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: mmp-dma: convert to YAML

On Wednesday, January 31, 2024 6:18:57 PM CET Rob Herring wrote:
> On Sun, Jan 28, 2024 at 07:01:36PM +0100, Duje Mihanović wrote:
> > On Sunday, January 28, 2024 6:28:03 PM CET Conor Dooley wrote:
> > > That said, for properties that are only usable on some platforms, please
> > > define them at the top level and conditionally permit/constrain them.
> > 
> > Could you please point me to how to do so if this if/then does not do it
> > properly?
> 
> Negate the if and then:
> 
> then:
>   properties:
>     asram: false
> 
> There are lots of examples in the tree.

This works as expected, thanks.

> > > > +unevaluatedProperties: false
> > > > +
> > > > +examples:
> > > > +  # Peripheral controller
> > > > +  - |
> > > > +    pdma0: dma-controller@...00000 {
> > > 
> > > The label is not needed here or below.
> > > In fact, I'd probably delete the second example as it shows nothing that
> > > the first one does not.
> > 
> > I'd rather add the asram property in the second node (adding onto the 
above
> > comment, I now see that it shouldn't have even passed dt_binding_check
> > because of the missing asram, but it did).
> 
> It passed because 'required' is what checks for property presence and
> nowhere is asram required. It is missing a type definition which should
> have warned, but may not since it is under an 'if'.

I thought specifying minItems would have the same effect, but that turned out 
not to be the case. Also, the 'if' did indeed suppress the missing type 
warning.

Regards,
-- 
Duje




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