From: Wolfram Sang <wsa+renesas@sang-engineering.com>
To: Josua Mayer <josua@solid-run.com>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>,
Vincent Mailhol <mailhol@kernel.org>,
Vinod Koul <vkoul@kernel.org>,
Neil Armstrong <neil.armstrong@linaro.org>,
Peter Rosin <peda@axentia.se>,
Aaro Koskinen <aaro.koskinen@iki.fi>,
Andreas Kemnade <andreas@kemnade.info>,
Kevin Hilman <khilman@baylibre.com>,
Roger Quadros <rogerq@kernel.org>,
Tony Lindgren <tony@atomide.com>,
Janusz Krzysztofik <jmkrzyszt@gmail.com>,
Vignesh R <vigneshr@ti.com>, Andi Shyti <andi.shyti@kernel.org>,
Ulf Hansson <ulf.hansson@linaro.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Magnus Damm <magnus.damm@gmail.com>,
Yazan Shhady <yazan.shhady@solid-run.com>,
Jon Nettleton <jon@solid-run.com>,
Mikhail Anikin <mikhail.anikin@solid-run.com>,
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 v8 7/7] mmc: host: renesas_sdhi_core: support selecting an optional mux
Date: Wed, 4 Feb 2026 16:20:34 +0100 [thread overview]
Message-ID: <aYNjwgS6M5hCmEeL@shikoro> (raw)
In-Reply-To: <20260203-rz-sdio-mux-v8-7-024ea405863e@solid-run.com>
On Tue, Feb 03, 2026 at 03:01:40PM +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.
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> Signed-off-by: Josua Mayer <josua@solid-run.com>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
next prev parent reply other threads:[~2026-02-04 15:20 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-03 13:01 [PATCH v8 0/7] mmc: host: renesas_sdhi_core: support configuring an optional sdio mux Josua Mayer
2026-02-03 13:01 ` [PATCH v8 1/7] phy: can-transceiver: rename temporary helper function to avoid conflict Josua Mayer
2026-02-04 15:18 ` Wolfram Sang
2026-02-03 13:01 ` [PATCH v8 2/7] mux: Add helper functions for getting optional and selected mux-state Josua Mayer
2026-02-03 15:35 ` Josua Mayer
2026-02-04 14:21 ` Ulf Hansson
2026-02-04 15:19 ` Wolfram Sang
2026-02-03 13:01 ` [PATCH v8 3/7] mux: add help text for MULTIPLEXER config option Josua Mayer
2026-02-04 15:19 ` Wolfram Sang
2026-02-08 15:16 ` Josua Mayer
2026-02-09 8:06 ` Geert Uytterhoeven
2026-02-09 10:12 ` Josua Mayer
2026-02-09 10:17 ` Geert Uytterhoeven
2026-02-09 10:47 ` Josua Mayer
2026-02-09 11:03 ` Geert Uytterhoeven
2026-02-03 13:01 ` [PATCH v8 4/7] phy: can-transceiver: drop temporary helper getting optional mux-state Josua Mayer
2026-02-04 15:19 ` Wolfram Sang
2026-02-03 13:01 ` [PATCH v8 5/7] i2c: omap: switch to new generic helper for getting selected mux-state Josua Mayer
2026-02-04 15:20 ` Wolfram Sang
2026-02-03 13:01 ` [PATCH v8 6/7] dt-bindings: mmc: renesas,sdhi: Add mux-states property Josua Mayer
2026-02-04 15:20 ` Wolfram Sang
2026-02-03 13:01 ` [PATCH v8 7/7] mmc: host: renesas_sdhi_core: support selecting an optional mux Josua Mayer
2026-02-04 15:20 ` Wolfram Sang [this message]
2026-02-04 15:47 ` Wolfram Sang
2026-02-04 15:33 ` [PATCH v8 0/7] mmc: host: renesas_sdhi_core: support configuring an optional sdio mux Ulf Hansson
2026-02-12 10:54 ` Ulf Hansson
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