linux-kernel - Re: [PATCH v7 02/14] dt-bindings: net: mediatek,net: update for mt7988

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Message-ID: <24081402-4690-4a1b-a6d0-adab803d0049@kernel.org>
Date: Wed, 2 Jul 2025 08:29:46 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: frank-w@...lic-files.de, Frank Wunderlich <linux@...web.de>
Cc: MyungJoo Ham <myungjoo.ham@...sung.com>,
 Kyungmin Park <kyungmin.park@...sung.com>,
 Chanwoo Choi <cw00.choi@...sung.com>, Georgi Djakov <djakov@...nel.org>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Andrew Lunn <andrew@...n.ch>,
 Vladimir Oltean <olteanv@...il.com>, "David S. Miller"
 <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Matthias Brugger <matthias.bgg@...il.com>,
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
 Johnson Wang <johnson.wang@...iatek.com>, Arınç ÜNAL
 <arinc.unal@...nc9.com>, Landen Chao <Landen.Chao@...iatek.com>,
 DENG Qingfang <dqfext@...il.com>, Sean Wang <sean.wang@...iatek.com>,
 Daniel Golle <daniel@...rotopia.org>, Lorenzo Bianconi <lorenzo@...nel.org>,
 Felix Fietkau <nbd@....name>, linux-pm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH v7 02/14] dt-bindings: net: mediatek,net: update for
 mt7988

On 01/07/2025 12:33, Frank Wunderlich wrote:
> Am 1. Juli 2025 08:41:42 MESZ schrieb Krzysztof Kozlowski <krzk@...nel.org>:
>> On Sat, Jun 28, 2025 at 06:54:37PM +0200, Frank Wunderlich wrote:
>>> From: Frank Wunderlich <frank-w@...lic-files.de>
>>>
>>> Update binding for mt7988 which has 3 gmac and a sram for dma
>>> operations.
>>
>> I asked why you are updating. You claim you update because it has 3
>> GMAC... but that's irrelevant, because it is easy to answer with: it did
>> not have 3 GMAC before?
>>
>> So same question: Provide real reason why you are making updates. That's
>> why you have commit msg.
> 
> MT7988 had always 3 gmac,but no dts with ethernet
> node till now.
> As i try to upstream the dts,i fell over this.

What does it mean? Are you adding new device or not? Nothing explains
that something was missing.

> 
> Imho changing the regex for the mac subnodes was
> simply forgotten to be updated on initial mt7988
> support patch.

Fix
your
wrapping because
it is
difficult
to follow
such
style.

> 
> I try to rephrase it like this:
> 
> Binding was not aware for 3 MAC subnodes because
> previous mediatek SoC had only 2. Change this to allow
> 3 GMAC in mt7988 devicetree.

So a fix for existing? Than add Fixes tag, describe the issue and fix
ONLY that issue.

Best regards,
Krzysztof