[PATCH 2/4] dt-bindings: iommu: mediatek: mt8195 Accept up to 5 interrupts

[AngeloGioacchino Del Regno]

Il 06/05/25 12:03, Julien Massot ha scritto:
> Hi Angelo,
> 
> On Tue, 2025-05-06 at 10:34 +0200, AngeloGioacchino Del Regno wrote:
>> Il 05/05/25 15:23, Julien Massot ha scritto:
>>> Some Mediatek IOMMU can have up to five interrupts so increase
>>> the 'maxItems' to 5.
>>>
>>> Fix the following dtb-check error:
>>>
>>> mediatek/mt8395-radxa-nio-12l.dtb: infra-iommu at 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
>>>
>>> Fixes: 3b5838d1d82e3 ("arm64: dts: mt8195: Add iommu and smi nodes")
>>> Signed-off-by: Julien Massot <julien.massot at collabora.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 75750c64157c868725c087500ac81be4e282c829..035941c2db32170e9a69a5363d8c05ef767bb251 100644
>>> --- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
>>> +++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
>>> @@ -97,7 +97,8 @@ properties:
>>>        maxItems: 1
>>>    
>>>      interrupts:
>>> -    maxItems: 1
>>> +    minItems: 1
>>
>> Isn't minItems already implicitly 1? :-)
>>
>> Looks not, from my understanding if 'minItems' is omitted then
> dt-schema is setting it to 'maxItems'.
> https://github.com/devicetree-org/dt-schema/blob/v2025.02/dtschema/fixups.py#L129
> 
> And you will have an error for a one item interrupts:
> Documentation/devicetree/bindings/iommu/mediatek,iommu.example.dtb: iommu at 10205000: interrupts: [[0,
> 139, 8]] is too short
> 

Whoops, you're right.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>