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Date:   Mon, 15 Jun 2020 19:15:15 +0100
From:   Jonathan McDowell <noodles@earth.li>
To:     Rob Herring <robh@kernel.org>
Cc:     Andrew Lunn <andrew@lunn.ch>,
        Vivien Didelot <vivien.didelot@gmail.com>,
        Florian Fainelli <f.fainelli@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: net: dsa: qca8k: document SGMII
 properties
Message-ID: <20200615181515.GC17897@earth.li>
References: <cover.1591380105.git.noodles@earth.li>
 <ca767d2dd00280f7c0826c133d1ff6f262b6736d.1591380105.git.noodles@earth.li>
 <20200615174516.GA2018349@bogus>
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On Mon, Jun 15, 2020 at 11:45:16AM -0600, Rob Herring wrote:
> On Fri, Jun 05, 2020 at 07:10:02PM +0100, Jonathan McDowell wrote:
> > This patch documents the qca8k's SGMII related properties that allow
> > configuration of the SGMII port.
> > 
> > Signed-off-by: Jonathan McDowell <noodles@earth.li>
> > ---
> >  Documentation/devicetree/bindings/net/dsa/qca8k.txt | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/net/dsa/qca8k.txt b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
> > index ccbc6d89325d..9e7d74a248ad 100644
> > --- a/Documentation/devicetree/bindings/net/dsa/qca8k.txt
> > +++ b/Documentation/devicetree/bindings/net/dsa/qca8k.txt
> > @@ -11,7 +11,11 @@ Required properties:
> >  
> >  Optional properties:
> >  
> > +- disable-serdes-autoneg: Boolean, disables auto-negotiation on the SerDes
> >  - reset-gpios: GPIO to be used to reset the whole device
> > +- sgmii-delay: Boolean, presence delays SGMII clock by 2ns
> > +- sgmii-mode: String, operation mode of the SGMII interface.
> > +  Supported values are: "basex", "mac", "phy".
> 
> Either these should be common properties and documented in a common 
> spot or they need vendor prefixes. They seem like they former to me 
> (though 'sgmii-delay' would need to be more general and take a time).

I've managed to spin a subsequent revision which avoids the need for a
device tree change, based on comments similar to yours. I'll keep them
in mind should it become necessary to re-introduce the DT options.

J.

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