[PATCH v8 6/7] dt-bindings: mmc: renesas,sdhi: Add mux-states property

[Wolfram Sang]

On Tue, Feb 03, 2026 at 03:01:39PM +0200, Josua Mayer wrote:
> Add mux controller support for data or control lines that are muxed
> between a host and multiple cards.
> 
> There are several devices supporting a choice of eMMC or SD on a single
> board by both dip switch and gpio, e.g. Renesas RZ/G2L SMARC SoM and
> SolidRun RZ/G2L SoM.
> 
> In-tree dts for the Renesas boards currently rely on preprocessor macros
> and gpio hogs to describe the respective cards.
> 
> By adding mux-states property to sdhi controller description, boards can
> correctly describe the mux that already exists in hardware - and drivers
> can coordinate between mux selection and probing for cards.
> 
> Acked-by: Rob Herring (Arm) <robh at kernel.org>
> Signed-off-by: Josua Mayer <josua at solid-run.com>

Reviewed-by: Wolfram Sang <wsa+renesas at sang-engineering.com>