Re: [PATCH 2/6] dt-bindings: iommu: mediatek: Fix interrupt count constraint for new SoCs

[Conor Dooley <conor@kernel.org>]

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On Tue, Sep 24, 2024 at 06:31:52PM +0800, Macpaul Lin wrote:
> The infra-iommu node in mt8195.dtsi was triggering a CHECK_DTBS error due
> to an excessively long 'interrupts' property. The error message was:
> 
>   infra-iommu@10315000: interrupts: [[0, 795, 4, 0], [0, 796, 4, 0],
>                      [0, 797, 4, 0], [0, 798, 4, 0], [0, 799, 4, 0]]
>                      is too long
> 
> To address this issue, add "minItems: 1" and "maxItems: 5" constraints to
> the 'interrupts' property in the DT binding schema. This change allows for
> flexibility in the number of interrupts for new SoCs
> 
> Fixes: bca28426805d ("dt-bindings: iommu: mediatek: Convert IOMMU to DT schema")
> 

This space should be removed.

> Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com>
> ---
>  Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
> index ea6b0f5f24de..a00f1f0045b1 100644
> --- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
> +++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
> @@ -96,7 +96,8 @@ properties:
>      maxItems: 1
>  
>    interrupts:
> -    maxItems: 1
> +    minItems: 1
> +    maxItems: 5

You need to add an items list here, and probably some per compatible
constraints. What are each of the itnerrupts for?

>  
>    clocks:
>      items:
> -- 
> 2.45.2
> 

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