[PATCH v2] dt-bindings: soc: imx-iomuxc-gpr: Document the CSI mux

[Frank Li]

On Wed, Sep 10, 2025 at 08:34:02PM -0300, Fabio Estevam wrote:
> On i.MX6Q/6DL the following subnodes exist to describe the CSI port muxing:
>
> - ipu1_csi0_mux
> - ipu1_csi1_mux
> - ipu2_csi0_mux
> - ipu2_csi1_mux
>
> As they were not documented, dt-schema emits warnings like:
>
>   'ipu1_csi0_mux', 'ipu1_csi1_mux' do not match any of the regexes:
>   '^pinctrl-[0-9]+$'
>
> Add a top-level patternProperties entry for these CSI mux subnodes
> and restrict it to i.MX6Q.
>
> Signed-off-by: Fabio Estevam <festevam at gmail.com>

Reviewed-by: Frank Li <Frank.Li at nxp.com>

> ---
> Changes since v1:
> - Restrict it to i.MX6Q (Frank).
>
>  .../bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml     | 16 ++++++++++++++++
>  1 file changed, 16 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml b/Documentation/devicetree/bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml
> index 8451cb4dd87c..719de0489002 100644
> --- a/Documentation/devicetree/bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml
> +++ b/Documentation/devicetree/bindings/soc/imx/fsl,imx-iomuxc-gpr.yaml
> @@ -50,6 +50,22 @@ properties:
>      type: object
>      $ref: /schemas/mux/reg-mux.yaml
>
> +patternProperties:
> +  "^ipu[12]_csi[01]_mux$":
> +    type: object
> +    $ref: /schemas/media/video-mux.yaml
> +
> +allOf:
> +  - if:
> +      properties:
> +        compatible:
> +          not:
> +            contains:
> +              const: fsl,imx6q-iomuxc-gpr
> +    then:
> +      patternProperties:
> +        '^ipu[12]_csi[01]_mux$': false
> +
>  additionalProperties: false
>
>  required:
> --
> 2.34.1
>