Re: [PATCH 4/4] ARM: dts: qcom: msm8974: Start using rpmpd for power domains

[Luca Weiss]

On 23-06-2025 2:39 p.m., Konrad Dybcio wrote:
> On 6/21/25 3:19 PM, Luca Weiss wrote:
> > Due to historical reasons all msm8974 boards have used the CX power rail
> > as regulator instead of going through the power domain framework.
> >
> > Since rpmpd has gained msm8974 support quite a bit ago, let's start
> > using it and replace all usages of pm8841_s2 (CX), pm8841_s4 (GFX) and
> > for the boards using pma8084 pma8084_s2 (CX), pma8084_s7 (GFX).
> >
> > For reference, downstream is using GFX power rail as parent-supply for
> > mmcc's OXILI_GDSC GDSC which then is used for GPU, but nothing there is
> > modelled upstream.
>
> if you use an opp table with described rpmpd levels and bind the GFX
> domain to gpucc, it should propagate - check it out

I don't *really* understand what you mean here. I'd be happy if you 
provided an example (or better yet, a patch) for this.

Also msm8974 does not have gpucc, only gcc and mmcc.

> > Signed-off-by: Luca Weiss <luca@xxxxxxxxxxxx>
> > ---
>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>

Thanks!

Regards
Luca

> Konrad