Re: [PATCH v2 3/8] dt-bindings: media: mediatek,jpeg: Relax IOMMU max item count

[Krzysztof Kozlowski]

On 01/10/2024 13:27, Fei Shao wrote:
> On MediaTek platforms with Multimedia MMU (M4U), a multimedia hardware
> can be assigned with a local arbiter (LARB) which has a maximum of 32
> ports for MediaTek's IOMMU infrastructure. That means there can be at
> most 32 items in the iommus property in theory.
> 
> Instead of relaxing the max item count every time a newly introduced
> device tree hits the limit, bump the number to 32 as an one-time effort.
> 
> On the other hand, all existing and foreseeable JPEG decoder nodes at
> this point have at least 2 IOMMUs, so set minItems to 2 accordingly.
> 
> Signed-off-by: Fei Shao <fshao@xxxxxxxxxxxx>
> ---
> It's not in the upstream tree yet, but the upcoming MT8188 DT will have
> 6 IOMMUs in its JPEG decoder. This patch is to pave the way for that.
> 
> Changes in v2:
> New patch.


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>

Best regards,
Krzysztof