linux-kernel - Re: [PATCH 1/5] dt-bindings: mtd: jedec,spi-nor: document issi,is25wp256

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Message-ID: <ae4c58fe-0af5-3f1d-cc16-27b78772cbb5@microchip.com>
Date:   Fri, 20 Aug 2021 13:28:48 +0000
From:   <Tudor.Ambarus@...rochip.com>
To:     <krzysztof.kozlowski@...onical.com>, <p.yadav@...com>
CC:     <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
        <robh+dt@...nel.org>, <paul.walmsley@...ive.com>,
        <palmer@...belt.com>, <aou@...s.berkeley.edu>,
        <atish.patra@....com>, <sagar.kadam@...ive.com>,
        <linux-mtd@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-riscv@...ts.infradead.org>
Subject: Re: [PATCH 1/5] dt-bindings: mtd: jedec,spi-nor: document
 issi,is25wp256

On 8/19/21 8:36 PM, Krzysztof Kozlowski wrote:
> EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
> 
> On 19/08/2021 19:28, Pratyush Yadav wrote:
>> + Tudor (you should be listed as a maintainer for this file IMO)
>>
>> On 19/08/21 06:59PM, Krzysztof Kozlowski wrote:
>>> Document bindings for the issi,is25wp256 SPI NOR flash.
>>>
>>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
>>> ---
>>>  Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml | 1 +
>>>  1 file changed, 1 insertion(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml
>>> index ed590d7c6e37..0db64ac7dc33 100644
>>> --- a/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml
>>> +++ b/Documentation/devicetree/bindings/mtd/jedec,spi-nor.yaml
>>> @@ -33,6 +33,7 @@ properties:
>>>        - items:
>>>            - enum:
>>>                - issi,is25lp016d
>>> +              - issi,is25wp256
>>
>> I don't think we want to add any new flash specific compatibles. Why is
>> "jedec,spi-nor" not enough for you?
> 
> It's fine for me. I had impression that specific compatibles are still
> preferred and one of boards is using this one. The other way is to
> remove this compatible from the board DTS.
> 

Pratyush is right, we prefer to bind just to the generic "jedec,spi-nor"
compatible whenever possible.

Cheers,
ta