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

Ivaylo Ivanov ivo.ivanov.ivanov1 at gmail.com
Wed Jul 23 01:21:35 PDT 2025


On 7/23/25 11:15, Krzysztof Kozlowski wrote:
> 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

I don't, but the main point was to avoid defining ranges for every single usi
node, because they are a lot.

Best regards,
Ivaylo

>  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
>




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