linux-kernel - Re: [PATCH] ARM: dts: imx6dl-yapp4: Fix RGMII connection to QCA8334 switch

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Message-ID: <20210513034722.GN3425@dragon>
Date:   Thu, 13 May 2021 11:47:23 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Michal Vokáč <michal.vokac@...ft.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        stable@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: imx6dl-yapp4: Fix RGMII connection to QCA8334
 switch

On Tue, Apr 13, 2021 at 04:45:57PM +0200, Michal Vokáč wrote:
> The FEC does not have a PHY so it should not have a phy-handle. It is
> connected to the switch at RGMII level so we need a fixed-link sub-node
> on both ends.
> 
> This was not a problem until the qca8k.c driver was converted to PHYLINK
> by commit b3591c2a3661 ("net: dsa: qca8k: Switch to PHYLINK instead of
> PHYLIB"). That commit revealed the FEC configuration was not correct.
> 
> Fixes: 87489ec3a77f ("ARM: dts: imx: Add Y Soft IOTA Draco, Hydra and Ursa boards")
> Cc: stable@...r.kernel.org
> Signed-off-by: Michal Vokáč <michal.vokac@...ft.com>

Applied, thanks.