Re: [PATCH v4 01/20] dt-bindings: iommu: mediatek: Increase max interrupt number

From: Yong Wu
Date: Mon Aug 01 2022 - 08:24:46 EST


On Fri, 2022-07-29 at 14:31 +0800, Tinghan Shen wrote:
> mt8195 infra iommu uses 5 interrupts.
>
> Signed-off-by: Tinghan Shen <tinghan.shen@xxxxxxxxxxxx>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
> ---
> .../bindings/iommu/mediatek,iommu.yaml | 18
> +++++++++++++++++-
> 1 file changed, 17 insertions(+), 1 deletion(-)
>
> diff --git
> a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
> b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
> index fee0241b50988..5afe2a0045330 100644
> --- a/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
> +++ b/Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
> @@ -91,7 +91,8 @@ properties:
> maxItems: 1
>
> interrupts:
> - maxItems: 1
> + minItems: 1
> + maxItems: 5
>
> clocks:
> items:
> @@ -191,9 +192,24 @@ allOf:
> const: mediatek,mt8195-iommu-infra
>
> then:
> + properties:
> + interrupts:
> + maxItems: 1
> +
> required:
> - mediatek,larbs
>
> + else:
> + properties:
> + interrupts:
> + description: The IOMMU has 5 banks. Each bank has its own
> interrupt.
> + items:
> + - description: The interrupt for IOMMU bank0
> + - description: The interrupt for IOMMU bank1
> + - description: The interrupt for IOMMU bank2
> + - description: The interrupt for IOMMU bank3
> + - description: The interrupt for IOMMU bank4
> +

Thanks for improving this.

Before the meaning for this segment is that it require "mediatek,larbs"
if it is NOT infra iommu. Here we add a new block for infra iommu.
then we'd better to remove the "not". this should be more readable.
Something like below:

if:
/* Remove the not here. */
properties:
compatible:
contains:
const: mediatek,mt8195-iommu-infra
then:
xxx
else:
xx


> additionalProperties: false
>
> examples: