Re: [PATCH v2 8/8] arm64: dts: qcom: eliza: Add support for MM clock controllers

[Taniya Das <taniya.das@oss.qualcomm.com>]

On 4/10/2026 1:56 PM, Bryan O'Donoghue wrote:
> On 10/04/2026 04:55, Taniya Das wrote:
>>> Why do these two controllers have no power-domains ?
>> Bryan, on Eliza the videocc and camcc are connected on CX and MXA.
> 
> Shouldn't you at least have:
> 
> power-domains = <&rpmhpd RPMHPD_CX> ?
> 
> And even
> 
> power-domains = <&rpmhpd RPMHPD_MX>,
>                 <&rpmhpd RPMHPD_CX>;
> power-domain-names = "mx",
>                      "cx";
> 
> Konrad's suggestion to me was that MXA should have a vote in my CSIPHY
> series I think he and Jagadeesh discussed it but I'm not sure if they
> _concluded_ what was the right thing to do.
> 
> Right now I'm representing the dependency. MXA is always on ... and
> there's nothing to do voting for it @ MX ?
> 

The clock controller drivers only request the minimum operating level
for the power domains. Since the cx and mx rails are already at the
minimum operating level when APPS is active, explicit voting for these
power domains is not required from camcc.

-- 
Thanks,
Taniya Das