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Date:   Wed, 11 May 2022 11:14:16 +0200
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Subject: Re: [PATCH v4 1/2] dt-bindings: remoteproc: mediatek: Make l1tcm reg
 exclusive to mt819x
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From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To:     =?UTF-8?B?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= 
        <nfraprado@collabora.com>
Cc:     Bjorn Andersson <bjorn.andersson@linaro.org>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@collabora.com>, kernel@collabora.com,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Mathieu Poirier <mathieu.poirier@linaro.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Rob Herring <robh+dt@kernel.org>,
        Tinghan Shen <tinghan.shen@mediatek.com>,
        Tzung-Bi Shih <tzungbi@google.com>, devicetree@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        linux-mediatek@lists.infradead.org,
        linux-remoteproc@vger.kernel.org
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On 11/05/2022 11:12, Krzysztof Kozlowski wrote:
> On 10/05/2022 18:50, Nícolas F. R. A. Prado wrote:
>>>> Also I had to add a description to the global reg-names, since it
>>>> couldn't be neither missing nor empty.
>>>
>>> It is possible:
>>> https://elixir.bootlin.com/linux/latest/source/Documentation/devicetree/bindings/example-schema.yaml#L91
>>>
>>> Keep constraints and list of names in properties. Then in allOf:if:then
>>> raise minItems or lower maxItems, depending on the variant.
>>
>> Hi Krzysztof,
>>
>> that example only shows setting minItems to override the default value, but the
>> issue here is that it's not possible to override minItems/maxItems (after
>> they're already set, even if implicitly) with a different value in the if.
> 
> No, this example shows exactly what you need in first step - make one
> item on the list optional.
> 
> There are several other examples for the entire picture or different
> aproach:
> https://elixir.bootlin.com/linux/latest/source/Documentation/devicetree/bindings/example-schema.yaml#L91

Wait, this is the same link... because it exactly matches your case.

Best regards,
Krzysztof