linux-kernel - Re: [PATCH v2] dt-bindings: arm: mediatek: mmsys: refine power and gce properties

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Date:   Sun, 1 May 2022 10:39:50 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Jason-JH Lin <jason-jh.lin@...iatek.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     Fabien Parent <fparent@...libre.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, CK Hu <ck.hu@...iatek.com>,
        Rex-BC Chen <rex-bc.chen@...iatek.com>,
        Nancy Lin <nancy.lin@...iatek.com>,
        Singo Chang <singo.chang@...iatek.com>,
        Project_Global_Chrome_Upstream_Group@...iatek.com,
        Cellopoint <cellopoint.kai@...il.com>
Subject: Re: [PATCH v2] dt-bindings: arm: mediatek: mmsys: refine power and
 gce properties

On 01/05/2022 10:26, Jason-JH Lin wrote:
> Hi Krzysztof,
> 
> Thanks for the reviews.
> 
> On Fri, 2022-04-29 at 22:58 +0200, Krzysztof Kozlowski wrote:
>> On 29/04/2022 10:30, Jason-JH.Lin wrote:
>>> Power:
>>>   Refine description and add item number for power-domains
>>> property.
>>>
>>> GCE:
>>>   Refine description and add item number for mboxes property and
>>>   mediatek,gce-client-reg property.
>>>
>>> Fixes: 1da90b8a7bae ("dt-bindings: arm: mediatek: mmsys: add power
>>> and gce properties")
>>> Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>
> 
> [snip]
>  
>>>    mboxes:
>>> +    minItems: 1
>>> +    maxItems: 24
>>
>> Wait, no, I wrote it should be 16 for one device and 24 for other,
>> not
>> 24 for all...
>>
> 
> Ok, I thought maxItems: 24 contained 16, but it's not clear enough.
> 
> 
> I'm not sure how to describe different maxItems for different
> platforms. Does it come like this?
> 
> 1. Remove the maxItems in mboxes property.

mboxes:
  maxItems: 24

> 2. Add the allOf condition before the line "additionalProperties:
> false". E.g.
> 
> allOf:
>   - if:
>       properties:
>         compatible:
>           contains:
>             const: mediatek,mt8173-mmsys
>     then:
>       properties:
>         mboxes:
>           maxItems: 16
>     else:
>       properties:
>         mboxes:
>           maxItems: 24

and you can skip the "else". In general looks fine.

Best regards,
Krzysztof