[PATCH v6 1/9] dt-bindings: mmc: spacemit,sdhci: add pinctrl support for voltage switching

[Krzysztof Kozlowski]

On Tue, Apr 07, 2026 at 10:25:21AM +0200, Iker Pedrosa wrote:
> Document pinctrl properties to support voltage-dependent pin
> configuration switching for UHS-I SD card modes.
> 
> Add optional pinctrl-names property with two states:
> - "default": For 3.3V operation with standard drive strength
> - "state_uhs": For 1.8V operation with optimized drive strength
> 
> These pinctrl states allow the SDHCI driver to coordinate voltage
> switching with pin configuration changes, ensuring proper signal
> integrity during UHS-I mode transitions.
> 
> Signed-off-by: Iker Pedrosa <ikerpedrosam at gmail.com>
> ---
>  .../devicetree/bindings/mmc/spacemit,sdhci.yaml          | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml b/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml
> index 9a055d963a7f0cdba4741c1e3e7269688dcd5f45..932fccc609bf8dbaf3ecfe09d9e610852ac7afa0 100644
> --- a/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml
> +++ b/Documentation/devicetree/bindings/mmc/spacemit,sdhci.yaml
> @@ -11,6 +11,7 @@ maintainers:
>  
>  allOf:
>    - $ref: mmc-controller.yaml#

Drop

> +  - $ref: sdhci-common.yaml#

Best regards,
Krzysztof