Re: [PATCH v5 4/5] cpufreq: qcom: Update the bandwidth levels on frequency change

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On 2020-06-01 16:31, Viresh Kumar wrote:
On 29-05-20, 17:00, Sibi Sankar wrote:
> > +static int qcom_cpufreq_update_opp(struct device *cpu_dev,
> > +				   unsigned long freq_khz,
> > +				   unsigned long volt)
> > +{
> > +	unsigned long freq_hz = freq_khz * 1000;
> > +
> > +	if (dev_pm_opp_adjust_voltage(cpu_dev, freq_hz, volt, volt, volt))
> > +		return dev_pm_opp_add(cpu_dev, freq_hz, volt);
>
> What's going on here ? Why add OPP here ?

We update the voltage if opp were
initially added as part of
dev_pm_opp_of_add_table. However
if the cpu node does not have an
opp table associated with it, we
do a opp_add_v1 instead.

Instead of depending on the failure of dev_pm_opp_adjust_voltage(),
pass a flag to qcom_cpufreq_update_opp() which will decide if we want
to adjust voltage or add an opp.

Sure will add it in the next
re-spin.

--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project.



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