netdev - Re: [PATCH net-next 4/8] dt-bindings: net: add DT bindings for Microsemi Ocelot Switch

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Message-ID: <20180326222514.4eciw66aihhcjgtw@rob-hp-laptop>
Date:   Mon, 26 Mar 2018 17:25:14 -0500
From:   Rob Herring <robh@...nel.org>
To:     Florian Fainelli <f.fainelli@...il.com>
Cc:     Alexandre Belloni <alexandre.belloni@...tlin.com>,
        "David S . Miller" <davem@...emloft.net>,
        Allan Nielsen <Allan.Nielsen@...rosemi.com>,
        razvan.stefanescu@....com, po.liu@....com,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Andrew Lunn <andrew@...n.ch>, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mips@...ux-mips.org
Subject: Re: [PATCH net-next 4/8] dt-bindings: net: add DT bindings for
 Microsemi Ocelot Switch

On Fri, Mar 23, 2018 at 02:11:35PM -0700, Florian Fainelli wrote:
> On 03/23/2018 01:11 PM, Alexandre Belloni wrote:
> > DT bindings for the Ethernet switch found on Microsemi Ocelot platforms.
> > 
> > Cc: Rob Herring <robh+dt@...nel.org>
> > Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
> > ---
> >  .../devicetree/bindings/net/mscc-ocelot.txt        | 62 ++++++++++++++++++++++
> >  1 file changed, 62 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/net/mscc-ocelot.txt
> > 
> > diff --git a/Documentation/devicetree/bindings/net/mscc-ocelot.txt b/Documentation/devicetree/bindings/net/mscc-ocelot.txt
> > new file mode 100644
> > index 000000000000..ee092a85b5a0
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/net/mscc-ocelot.txt
> > @@ -0,0 +1,62 @@
> > +Microsemi Ocelot network Switch
> > +===============================
> > +
> > +The Microsemi Ocelot network switch can be found on Microsemi SoCs (VSC7513,
> > +VSC7514)
> > +
> > +Required properties:
> > +- compatible: Should be "mscc,ocelot-switch"
> > +- reg: Must contain an (offset, length) pair of the register set for each
> > +  entry in reg-names.
> > +- reg-names: Must include the following entries:
> > +  - "sys"
> > +  - "rew"
> > +  - "qs"
> > +  - "hsio"
> > +  - "qsys"
> > +  - "ana"
> > +  - "portX" with X from 0 to the number of last port index available on that
> > +    switch
> > +- interrupts: Should contain the switch interrupts for frame extraction and
> > +  frame injection
> > +- interrupt-names: should contain the interrupt names: "xtr", "inj"
> 
> You are not documenting the "ports" subnode(s).Please move the
> individual ports definition under a ports subnode, mainly for two reasons:
> 
> - it makes it easy at the .dtsi level to have all ports disabled by default
> 
> - this makes you strictly conforming to the DSA binding for Ethernet
> switches and this is good for consistency (both parsing code and just
> representation).

ports and port collide with the OF graph binding. It would be good if 
this moved to ethernet-port(s) or similar.

Rob