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<070901dd2e6d$f5b70c30$e1252490$@gmx.de> <0a125ab4-2453-4d32-b158-8bdaaca16674@lunn.ch> <089001dd2e83$b8957920$29c06b60$@gmx.de> <2fd17092-753a-4a80-bdf4-72801eca8d0a@lunn.ch> In-Reply-To: <2fd17092-753a-4a80-bdf4-72801eca8d0a@lunn.ch> Subject: AW: [PATCH net-next v14 10/13] net: mdio: realtek-rtl9300: Open up C22 and C45 space in parallel Date: Mon, 17 Aug 2026 22:25:47 +0200 Message-ID: <08e501dd2e86$98e9fdf0$cabdf9d0$@gmx.de> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQKGRKDnP2yh8sOJ5M24BwCNtDMK1QH1jg89AffL5+ICqsGtjAEuNNjXAY0ikhsA+OoE97T+Hlmw Content-Language: de X-Provags-ID: V03:K1:pZOsp5jWNWfypoMBolOBp9WFTPiclxJhLtXlYZiNJHscU2Gs6Ha P18BNMyY4tPkYzG1MbZwKjZwqUMo1Q2SbT6AzgOoEU917xkV14kQVegXaxT4R25AO8BAoZJ 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August 2026 22:11 > An: Markus Stockhausen > Betreff: Re: [PATCH net-next v14 10/13] net: mdio: realtek-rtl9300: Open up C22 and C45 space in parallel > > > All downstream 1G PHY drivers for that platform use dedicated=20 > > read_mmd/write_mmd callbacks that run __mdiobus_c45_read/write(). > > So no warnings during bootup. > > O.K. > > In Mainline, please think about how you make that work. Are these PHYs > also used with MDIO busses which have working C45 over C22? And no > C45? Until now we never encountered any of these PHYs in scope=20 (RTL8218x octa port) outside of the Realtek RTL83xx/RTL93xx=20 ecosystem. Independent from that upstream "Generic FE-GE Realtek PHY" uses the same unconditional C45 access - regardeless of the bus=20 feature set. Makrus