Re: [PATCH v1 1/2] dt-bindings: soc: samsung: usi: allow 64-bit address space

[Krzysztof Kozlowski]

On Tue, Jul 22, 2025 at 03:10:36PM +0300, Ivaylo Ivanov wrote:
> Some device trees, like the exynos2200 one, configure the root node
> with #address-cells and #size-cells set to 2. However, the usi binding
> expects 32 bit address space only. Allow these determining properties to

So if USI expects 32 bit, then why do we allow 64?

Switching this to 2 means you use 64-bit addressing for children and
allowing DMA for >32 bit. This should be the true reason - what is the
address space and DMA range for children?

Best regards,
Krzysztof