linux-kernel - Re: [PATCH net-next v9 6/9] dt-bindings: net: hisi-femac: add binding for Hi3798MV200 FEMAC core

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Message-ID: <247d20b7-51ea-43af-ba00-faa2f1395a2d@linaro.org>
Date: Fri, 8 Mar 2024 09:40:26 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Yang Xiwen <forbidden405@...look.com>,
 Yisen Zhuang <yisen.zhuang@...wei.com>, Salil Mehta
 <salil.mehta@...wei.com>, "David S. Miller" <davem@...emloft.net>,
 Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, Andrew Lunn <andrew@...n.ch>,
 Heiner Kallweit <hkallweit1@...il.com>, Russell King <linux@...linux.org.uk>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 devicetree@...r.kernel.org
Subject: Re: [PATCH net-next v9 6/9] dt-bindings: net: hisi-femac: add binding
 for Hi3798MV200 FEMAC core

On 08/03/2024 09:02, Yang Xiwen wrote:
> On 3/8/2024 4:01 PM, Krzysztof Kozlowski wrote:
>> On 07/03/2024 12:34, Yang Xiwen via B4 Relay wrote:
>>> From: Yang Xiwen <forbidden405@...look.com>
>>>
>>> HiSilicon FEMAC core is also found on Hi3798MV200 SoC. Document it in
>>> binding.
>>>
>>> Signed-off-by: Yang Xiwen <forbidden405@...look.com>
>>>
>>> # Conflicts:
>>> #	Documentation/devicetree/bindings/net/hisilicon,hisi-femac.yaml
>> Drop
>>
>>> ---
>>>   Documentation/devicetree/bindings/net/hisilicon,hisi-femac.yaml | 1 +
>>>   1 file changed, 1 insertion(+)
>>>
>>> diff --git a/Documentation/devicetree/bindings/net/hisilicon,hisi-femac.yaml b/Documentation/devicetree/bindings/net/hisilicon,hisi-femac.yaml
>>> index 5cd2331668bc..4f8a07864eb4 100644
>>> --- a/Documentation/devicetree/bindings/net/hisilicon,hisi-femac.yaml
>>> +++ b/Documentation/devicetree/bindings/net/hisilicon,hisi-femac.yaml
>>> @@ -16,6 +16,7 @@ properties:
>>>     compatible:
>>>       enum:
>>>         - hisilicon,hi3516cv300-femac
>>> +      - hisilicon,hi3798mv200-femac
>> As I asked two or three or four times: please express compatibility
>> (oneOf, items). Your driver suggests that they are compatible. If they
>> are not compatible, mention it in commit msg, but so far it suggests
>> they are compatible.
> 
> 
> They are compatible as far as i see.

Sorry, that's not a Schroedinger's cat. Either it seems compatible or it
is not. You cannot say here "compatible as far as I see" and in second
thread say "If we are not going to keep backward compatibility".

Hardware is fixed, released, done.

Best regards,
Krzysztof