[PATCH v6 7/7] arm64: dts: qcom: eliza: Add support for MM clock controllers

[Konrad Dybcio]

On 7/6/26 7:28 AM, Taniya Das wrote:
> 
> 
> On 6/30/2026 7:39 PM, Konrad Dybcio wrote:
>> On 6/9/26 5:02 PM, Taniya Das wrote:
>>> Add the device nodes for the multimedia clock controllers (cambistmclkcc,
>>> camcc, videocc, gpucc) for Qualcomm Eliza SoC.
>>>
>>> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at oss.qualcomm.com>
>>> Signed-off-by: Taniya Das <taniya.das at oss.qualcomm.com>
>>> ---
>>
>> Almost all of these nodes lack power-domains, meaning the
>> aggregated performance state requests will not be translated
>> into RPMH requests
>>
> 
> Konrad, all the clock controllers are on CX, similar to Milos and does
> not have any special voltage requirement for the clock controller.
> It is okay to not map the power domains here.

I don't like repeating this every two weeks, but each consumer core
may need a specific corner for operating at a given frequency and 
the way that is conveyed upstream is via a hierarchical structure of
pmdomains, where the root of the tree is provided by the rpmhpd
driver

If the connection here is lacking, every requirement specific in the
OPP table or in the IP node via required-opps goes to /dev/null and
RPMH may do something between aggregating to a lower state (because
there's some other node voting on it by pure coincidence) or shutting
the rail off (because there's no votes whatshoever)

Konrad