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

[Krzysztof Kozlowski]

On 23/07/2025 10:21, Ivaylo Ivanov wrote:
> 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

I do not understand your "I don't", because you do. You change the child
address space to 64 bit and switch to 36/64 bit DMA. That's the meaning
of address cells 2.


Best regards,
Krzysztof