Re: [PATCH 1/5] media: dt-bindings: nxp,imx8mq-mipi-csi2: Add i.MX8ULP compatible string

[Krzysztof Kozlowski]

On 12/08/2025 10:19, guoniu.zhou@xxxxxxxxxxx wrote:
> From: Guoniu Zhou <guoniu.zhou@xxxxxxx>
> 
> The CSI-2 receiver in the i.MX8ULP is almost identical to the
> version present in the i.MX8QXP/QM. But have different reset
> and clock design, so add a device-specific compatible string
> for i.MX8ULP to handle the difference.
> 
> Signed-off-by: Guoniu Zhou <guoniu.zhou@xxxxxxx>
> ---
>  .../bindings/media/nxp,imx8mq-mipi-csi2.yaml  | 23 +++++++++++++++++++
>  1 file changed, 23 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/media/nxp,imx8mq-mipi-csi2.yaml b/Documentation/devicetree/bindings/media/nxp,imx8mq-mipi-csi2.yaml
> index 3389bab266a9..83fdda2252e5 100644
> --- a/Documentation/devicetree/bindings/media/nxp,imx8mq-mipi-csi2.yaml
> +++ b/Documentation/devicetree/bindings/media/nxp,imx8mq-mipi-csi2.yaml
> @@ -20,6 +20,7 @@ properties:
>        - enum:
>            - fsl,imx8mq-mipi-csi2
>            - fsl,imx8qxp-mipi-csi2
> +          - fsl,imx8ulp-mipi-csi2
>        - items:
>            - const: fsl,imx8qm-mipi-csi2
>            - const: fsl,imx8qxp-mipi-csi2
> @@ -39,12 +40,17 @@ properties:
>                       clock that the RX DPHY receives.
>        - description: ui is the pixel clock (phy_ref up to 333Mhz).
>                       See the reference manual for details.
> +      - description: pclk is the lpav bus clock of i.MX8ULP.
> +                     See the reference manual for details.
> +    minItems: 3

You need to restrict all variants. Or explain why old hardware has now 4
clocks. That explanation is missing.

Best regards,
Krzysztof