[PATCH v3 1/4] dt-bindings: PCI: pci-imx6: Fix build warning after adding extref clock

[Frank Li]

On Mon, Mar 09, 2026 at 04:44:28PM +0800, Richard Zhu wrote:

dt-bindings: PCI: pci-imx6: Change maxItems of clocks and clock-names to 6

Previous commit 1352f58d7c8d ("dt-bindings: PCI: pci-imx6: Add external
reference clock input") was incomplete.

The constraints for "clocks" and "clock-names" still enforce an incorrect
number of items. Update maxItems for both properties to 6 to match the
actual hardware configuration.

---
After ---, you'd better to said
Sorry to miss testing when work 1352f58d7c8d.

Frank

> Fix dtbs_check build warnings by updating the maxItems property for
> clocks in fsl,imx6q-pcie-common.yaml and completing the clock
> descriptions in fsl,imx6q-pcie.yaml.
>
> The warnings occur because the clock arrays exceed the previously
> defined maximum length:
>
> imx943-evk.dtb: pcie at 4c380000 (fsl,imx95-pcie): clock-names: ['pcie', 'pcie_bus', 'pcie_phy', 'pcie_aux', 'ref', 'extref'] is too long
> imx943-evk.dtb: pcie at 4c300000 (fsl,imx95-pcie): clocks: [[5, 74], [5, 41], [5, 40], [5, 75], [46, 0], [47]] is too long
>
> Fixes: 1352f58d7c8d ("dt-bindings: PCI: pci-imx6: Add external reference clock input")
> Signed-off-by: Richard Zhu <hongxing.zhu at nxp.com>
> ---
>  .../devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml        | 4 ++--
>  Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml     | 3 ++-
>  2 files changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml
> index cddbe21f99f2..0488c942092d 100644
> --- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml
> +++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml
> @@ -17,11 +17,11 @@ description:
>  properties:
>    clocks:
>      minItems: 3
> -    maxItems: 5
> +    maxItems: 6
>
>    clock-names:
>      minItems: 3
> -    maxItems: 5
> +    maxItems: 6
>
>    num-lanes:
>      const: 1
> diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
> index 12a01f7a5744..7fe1e0e9b565 100644
> --- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
> +++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
> @@ -40,7 +40,8 @@ properties:
>        - description: PCIe PHY clock.
>        - description: Additional required clock entry for imx6sx-pcie,
>             imx6sx-pcie-ep, imx8mq-pcie, imx8mq-pcie-ep.
> -      - description: PCIe reference clock.
> +      - description: PCIe internal reference clock.
> +      - description: PCIe additional external reference clock
>
>    clock-names:
>      minItems: 3
> --
> 2.37.1
>