Re: [RFC PATCH 0/4] cpufreq: qcom-hw: Move clocks to CPU node

[Viresh Kumar]

On 18-07-22, 07:27, Viresh Kumar wrote:
> The OPP tables, which are part of the CPU nodes, mentions clock rates.
> Are these values for the cxo/gpll clocks or the clock that reaches the
> CPUs? I believe the latter. The DT is not really complete if the CPU
> node mentions the frequency, but not the source clock. It works for
> you because you don't want to do clk_set_rate() in this case, but then
> it leaves other frameworks, like OPP, confused and rightly so.
> 
> Normally, there is always a difference in what the OPP table contains
> as frequency value and what the hardware programs, mostly it is small
> though. It shouldn't prevent us from having the hierarchy clearly
> defined in the DT.
> 
> Based on your description, I think it would be better to make
> cpufreq-hw a clock provider and CPUs the consumer of it. It would then
> allow the OPP core to not carry the hack to make it all work.

Bjorn / Mani,

Can we please get this sorted out ? I don't want to carry an unnecessary hack in
the OPP core for this.

-- 
viresh