netdev - Re: [PATCH v4 2/5] dt-bindings: net: dsa: qca,ar9331 switch documentation

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Message-ID: <20191023003543.GE5707@lunn.ch>
Date:   Wed, 23 Oct 2019 02:35:43 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Oleksij Rempel <o.rempel@...gutronix.de>
Cc:     Chris Snook <chris.snook@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        James Hogan <jhogan@...nel.org>,
        Jay Cliburn <jcliburn@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Paul Burton <paul.burton@...s.com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Rob Herring <robh+dt@...nel.org>,
        Vivien Didelot <vivien.didelot@...il.com>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-mips@...r.kernel.org, Russell King <linux@...linux.org.uk>
Subject: Re: [PATCH v4 2/5] dt-bindings: net: dsa: qca,ar9331 switch
 documentation

On Tue, Oct 22, 2019 at 07:57:40AM +0200, Oleksij Rempel wrote:
> Atheros AR9331 has built-in 5 port switch. The switch can be configured
> to use all 5 or 4 ports. One of built-in PHYs can be used by first built-in
> ethernet controller or to be used directly by the switch over second ethernet
> controller.
> 
> Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>

Hi Oleksij

What we never really discussed is how this MUXing of the PHY works.

What i'm worried about is that when we do understand how it works, we
cannot properly support it using this binding.

Please could you try to find information about this.

Thanks
	Andrew