netdev - Re: [PATCH v2 03/11] dt-bindings: arm: mediatek: add 'mediatek,pn

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Message-ID: <Y+Yc2GlgQh415FWx@shell.armlinux.org.uk>
Date:   Fri, 10 Feb 2023 10:30:48 +0000
From:   "Russell King (Oracle)" <linux@...linux.org.uk>
To:     Krzysztof Kozlowski <krzk@...nel.org>
Cc:     Daniel Golle <daniel@...rotopia.org>, netdev@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Heiner Kallweit <hkallweit1@...il.com>,
        Lorenzo Bianconi <lorenzo@...nel.org>,
        Mark Lee <Mark-MC.Lee@...iatek.com>,
        John Crispin <john@...ozen.org>, Felix Fietkau <nbd@....name>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        DENG Qingfang <dqfext@...il.com>,
        Landen Chao <Landen.Chao@...iatek.com>,
        Sean Wang <sean.wang@...iatek.com>,
        Paolo Abeni <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Vladimir Oltean <olteanv@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Andrew Lunn <andrew@...n.ch>,
        Jianhui Zhao <zhaojh329@...il.com>,
        Bjørn Mork <bjorn@...k.no>
Subject: Re: [PATCH v2 03/11] dt-bindings: arm: mediatek: add
 'mediatek,pn_swap' property

On Tue, Feb 07, 2023 at 06:38:23PM +0100, Krzysztof Kozlowski wrote:
> On 07/02/2023 15:19, Daniel Golle wrote:
> > +Optional Properties:
> > +
> > +- mediatek,pn_swap: Invert polarity of the SGMII data lanes.
> 
> No:
> 3. Does not look like property of this node. This is a clock controller
> or system controller, not SGMII/phy etc.

Wrong. Totally wrong.

SGMII data lines consist of a "positive" and a "negative" signal.
Clearly, this PHY supports swapping the sense of those.

This CLEARLY has nothing to do with a clock controller. It's also not
system-controller related either.

-- 
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