[PATCH v2 10/12] dt-bindings: media: fsd: Document CSIS DMA controller

Krzysztof Kozlowski krzk at kernel.org
Mon Aug 25 05:25:24 PDT 2025


On 25/08/2025 14:01, Inbaraj E wrote:
> Hi Krzysztof,
> 
>>> According to the HW design of FSD SoC, the control to manage CSIS
>>> power is given to a separate CPU where custom firmware runs.
>>> Therefore. The Linux side does not control the CSIS power supplies directly
>> and are hence not included in the device tree.
>>
>> Usually this still means you vote for enabling these resources, at least for
>> other vendors it is like that. Unless you want to say these are essentially
>> always on and CANNOT be disabled ever.
> 
> Yes, we want IP to remain enabled permanently, So we are not adding power supply
> control in linux.

Please describe it in the description: part of the binding.

Best regards,
Krzysztof



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