netdev - Re: [PATCH] of: mdio: Support fixed links in of_phy_get_and

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Message-Id: <20180713.182532.1042729931543841597.davem@davemloft.net>
Date:   Fri, 13 Jul 2018 18:25:32 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     linus.walleij@...aro.org
Cc:     andrew@...n.ch, f.fainelli@...il.com, netdev@...r.kernel.org,
        Laurent.pinchart@...asonboard.com
Subject: Re: [PATCH] of: mdio: Support fixed links in
 of_phy_get_and_connect()

From: Linus Walleij <linus.walleij@...aro.org>
Date: Wed, 11 Jul 2018 19:45:11 +0200

> By a simple extension of of_phy_get_and_connect() drivers
> that have a fixed link on e.g. RGMII can support also
> fixed links, so in addition to:
> 
> ethernet-port {
> 	phy-mode = "rgmii";
> 	phy-handle = <&foo>;
> };
> 
> This setup with a fixed-link node and no phy-handle will
> now also work just fine:
> 
> ethernet-port {
> 	phy-mode = "rgmii";
> 	fixed-link {
> 		speed = <1000>;
> 		full-duplex;
> 		pause;
> 	};
> };
> 
> This is very helpful for connecting random ethernet ports
> to e.g. DSA switches that typically reside on fixed links.
> 
> The phy-mode is still there as the fixes link in this case
> is still an RGMII link.
> 
> Tested on the Cortina Gemini driver with the Vitesse DSA
> router chip on a fixed 1Gbit link.
> 
> Suggested-by: Andrew Lunn <andrew@...n.ch>
> Signed-off-by: Linus Walleij <linus.walleij@...aro.org>

Applied.