linux-kernel - Re: [PATCH 5/9] dt-bindings: spi: mtk-snfi: add mt7986 IC snfi bindings

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Date:   Tue, 29 Nov 2022 08:47:53 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Xiangsheng Hou (侯祥胜) 
        <Xiangsheng.Hou@...iatek.com>,
        "miquel.raynal@...tlin.com" <miquel.raynal@...tlin.com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "broonie@...nel.org" <broonie@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "gch981213@...il.com" <gch981213@...il.com>,
        "vigneshr@...com" <vigneshr@...com>,
        "richard@....at" <richard@....at>
Cc:     "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        Benliang Zhao (赵本亮) 
        <Benliang.Zhao@...iatek.com>,
        "linux-spi@...r.kernel.org" <linux-spi@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        Bin Zhang (章斌) <bin.zhang@...iatek.com>
Subject: Re: [PATCH 5/9] dt-bindings: spi: mtk-snfi: add mt7986 IC snfi
 bindings

On 29/11/2022 03:50, Xiangsheng Hou (侯祥胜) wrote:
> Hi Krzysztof,
> 
> On Mon, 2022-11-28 at 10:00 +0100, Krzysztof Kozlowski wrote:
>> On 28/11/2022 03:06, Xiangsheng Hou wrote:
>>> 1. add mt7986 IC bindings
>>
>> Subject: drop second, redundant "bindings".
> Will be fixed in next series.
> 
>>>    clocks:
>>> +    minItems: 2
>>>      items:
>>>        - description: clock used for the controller
>>>        - description: clock used for the SPI bus
>>> +      - description: clock used for the AHB bus dma bus, this
>>> depends on
>>> +                     hardware design, so this is optional.
>>
>> Optional for which variants? For all of them?
> It`s only needed for the item 3 nfi_hclk. Is it proper with this
> description or any other suggestion.

I understand third clock is optional. For which variants/compatibles it
is optional? Add allOf:if:then restricting it.

Best regards,
Krzysztof