Re: [PATCH v2 2/6] dt-bindings: media: camss: Add qcom,kaanapali-camss binding

Bryan O'Donoghue
2025-10-15T21:43:31Z

On 15/10/2025 20:45, Vladimir Zapolskiy wrote:
>> +  power-domains:
>> +    items:
>> +      - description:
>> +          TFE0 GDSC - Thin Front End, Global Distributed Switch
>> Controller.
>> +      - description:
>> +          TFE1 GDSC - Thin Front End, Global Distributed Switch
>> Controller.
>> +      - description:
>> +          TFE2 GDSC - Thin Front End, Global Distributed Switch
>> Controller.
>> +      - description:
>> +          Titan GDSC - Titan ISP Block Global Distributed Switch
>> Controller.
>> +
>> +  power-domain-names:
>> +    items:
>> +      - const: tfe0
>> +      - const: tfe1
>> +      - const: tfe2
>
> Please remove all 'tfeX' power domains, they are not going to be utilized
> any time soon.
>
> When 'power-domains' list is just a single Titan GDSC, 'power-domain-names'
> property is not needed.

Each one of these TFEs powers an individually power-collapsible TFEs.

This is also so with the other xFE power-domains on previous SoC
generations.

You'll need the TFEx power-domain to process any data on TFEx with the
'lite' versions being tied to the TOP GDSC.

So please keep the power-domain list, TOP isn't enough.

---
bod