Re: [PATCH v5 7/7] mmc: host: renesas_sdhi_core: support selecting an optional mux

[Geert Uytterhoeven]

On Sun, 18 Jan 2026 at 11:29, Josua Mayer <josua@xxxxxxxxxxxxx> 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 <josua@xxxxxxxxxxxxx>

LGTM, so
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds