netdev - Re: [PATCH] dt-bindings: net: dsa: realtek-smi: convert to YAML schema

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Date:   Mon, 10 Jan 2022 12:09:15 -0600
From:   Rob Herring <robh@...nel.org>
To:     Luiz Angelo Daros de Luca <luizluca@...il.com>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        devicetree@...r.kernel.org, Arnd Bergmann <arnd@...db.de>,
        Olof Johansson <olof@...om.net>,
        Arınç ÜNAL <arinc.unal@...nc9.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Andrew Lunn <andrew@...n.ch>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Vladimir Oltean <olteanv@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        "open list:NETWORKING DRIVERS" <netdev@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] dt-bindings: net: dsa: realtek-smi: convert to YAML
 schema

On Tue, Jan 04, 2022 at 08:44:37PM -0300, Luiz Angelo Daros de Luca wrote:
> Thanks Linus!
> 
> > > +    description: |
> > > +      realtek,rtl8365mb: 4+1 ports
> > > +      realtek,rtl8366:
> > > +      realtek,rtl8366rb:
> 

Why have you removed Linus' comment?

> There is some confusion with the n+m port description. Some 4+1 means
> 4 lan + 1 wan while in other cases it means 4 user + 1 ext port, even
> in Realtek documentation. The last digit in realtek product numbers is
> the port number (0 means 10) and it is the sum of user ports and
> external ports. From what I investigated, the last digit numbers
> normally mean:
> 
> 3: 2 user + 1 ext port
> 4: 2 user + 2 ext port
> 5: 4 user + 1 ext port
> 6: 5 user + 1 ext port
> 7: 5 user + 2 ext port
> 0: 8 user + 2 ext port.
> 
> The description in YAML was from the TXT version but it is a good time
> to improve it.
> 
> BTW, I couldn't find a datasheet for rtl8366rb. The commit message
> says it is from a DIR-685 but wikidevi days that device has a
> RTL8366SR, which is described as "SINGLE-CHIP 5+1-PORT 10/100/1000
> MBPS SWITCH CONTROLLER WITH DUAL MAC INTERFACES".
> 
> Do you have any suggestions?

I think Linus just meant to add spaces around the '+'.

Rob