Thank you for your contribution! Sashiko AI review found 1 potential issue(s) 
to consider:
- [Low] dt-bindings: spi-virtio: undocumented compatible in example
--

commit eb6ae8a9a8b3aa403347f70589897a8c7d297186
Author: Francesco Valla <[email protected]>

dt-bindings: spi: add bindings for spi-virtio

This commit adds device tree bindings for spi-virtio based on virtio-device.
It defines the properties and node dependencies for the virtio SPI controller.

> diff --git a/Documentation/devicetree/bindings/spi/spi-virtio.yaml 
> b/Documentation/devicetree/bindings/spi/spi-virtio.yaml
> new file mode 100644
> index 0000000000000..5b8639dd2e1f1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/spi/spi-virtio.yaml

[ ... ]

> +examples:
> +  - |
> +    virtio@3000 {
> +        compatible = "virtio,mmio";
> +        reg = <0x3000 0x100>;
> +        interrupts = <41>;
> +
> +        spi {
> +            compatible = "virtio,device2d";
> +
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +
> +            sram@0 {
> +                compatible = "microchip,mchp23k256";

[Severity: Low]
Is this compatible string documented in any existing binding schema?

The dt_binding_check tool strictly validates all compatible strings against
known schemas, so an undocumented compatible string in an example will emit a
schema validation warning.

When running make dt_binding_check on the new spi-virtio.yaml file, it
parses the example and attempts to match microchip,mchp23k256 against
registered bindings, which fails if none exist.

> +                reg = <0>;
> +                spi-max-frequency = <20000000>;
> +            };
> +        };
> +    };
> +
> +...

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