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Miller" , Andrew Lunn , Eric Dumazet , Florian Fainelli , Jakub Kicinski , Paolo Abeni , Woojung Huh , Arun Ramadoss , Lucas Stach , kernel@pengutronix.de, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, UNGLinuxDriver@microchip.com Subject: Re: [PATCH net-next v1 3/3] net: dsa: microchip: lan937x: disable VPHY output Message-ID: <20240627223818.655p2c34dp6ynxnq@skbuf> References: <20240627123911.227480-1-o.rempel@pengutronix.de> <20240627123911.227480-4-o.rempel@pengutronix.de> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240627123911.227480-4-o.rempel@pengutronix.de> On Thu, Jun 27, 2024 at 02:39:11PM +0200, Oleksij Rempel wrote: > The VPHY is a compatibility functionality to be able to attach network > drivers without fixed-link support to the switch, which generally > should not be needed with linux network drivers. Sorry, I don't have much to base my judgement upon. I did search for the "VPHY" string and found it to be accessed in the dev_ops->r_phy() and dev_ops->w_phy() implementations, suggesting that it is more than just that? These methods are used for accessing the registers of the embedded PHYs for user ports. I don't see what is the connection with RGMII on the CPU port.