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6 Mar 2026 16:33:39 +0100 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 6 Mar 2026 16:33:39 +0100 X-UD-Smtp-Session: l3s3148p1@mqj8xlxMOIQgAwDPXzF+ANZpdrMKUeLI Date: Fri, 6 Mar 2026 16:33:39 +0100 From: Wolfram Sang To: Josua Mayer Cc: Marc Kleine-Budde , Vincent Mailhol , Vinod Koul , Neil Armstrong , Peter Rosin , Aaro Koskinen , Andreas Kemnade , Kevin Hilman , Roger Quadros , Tony Lindgren , Janusz Krzysztofik , Vignesh R , Andi Shyti , Ulf Hansson , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Magnus Damm , Yoshihiro Shimoda , Yazan Shhady , Jon Nettleton , Vladimir Oltean , Mikhail Anikin , linux-can@vger.kernel.org, linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, linux-i2c@vger.kernel.org, linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org Subject: Re: [PATCH v11 9/9] mmc: host: renesas_sdhi_core: support selecting an optional mux Message-ID: References: <20260226-rz-sdio-mux-v11-0-c2a350f9bbd3@solid-run.com> <20260226-rz-sdio-mux-v11-9-c2a350f9bbd3@solid-run.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20260226-rz-sdio-mux-v11-9-c2a350f9bbd3@solid-run.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260306_073343_452493_0BCCA0A2 X-CRM114-Status: GOOD ( 11.01 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org On Thu, Feb 26, 2026 at 03:21:17PM +0200, Josua Mayer wrote: > Some hardware designs route data or control signals through a mux to > support multiple devices on a single sdhi controller. > > In particular SolidRun RZ/G2L/G2LC/V2L System on Module use a mux for > switching between soldered eMMC and an optional microSD on a carrier > board, e.g. for development or provisioning. > > SD/SDIO/eMMC are not well suited for runtime switching between different > cards, however boot-time selection is possible and useful - in > particular considering dt overlays. > > Add support for an optional SD/SDIO/eMMC mux defined in dt, and select > it during probe. > > Similar functionality already exists in other places, e.g. i2c-omap. > > Signed-off-by: Josua Mayer Reviewed-by: Wolfram Sang Tested-by: Wolfram Sang -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy