Re: [PATCH v3 2/3] cpufreq: mediatek: Add CPUFREQ_ASYNC_NOTIFICATION flag

["Chun-Jen Tseng (曾俊仁)" <Chun-Jen.Tseng@mediatek.com>]

Hi viresh,

For CCI and ARMPLL in different driver, I need to change ARMPLL first
then use cpufreq notify CCI driver. it can avoid CCI driver get wrong
ARMPLL frequency and choose WRONG frequency.

BRs,

Mark Tseng


On Wed, 2025-02-19 at 11:15 +0530, Viresh Kumar wrote:
> 
> External email : Please do not click links or open attachments until
> you have verified the sender or the content.
> 
> 
> On 14-02-25, 15:43, Mark Tseng wrote:
> > Add CPUFREQ_ASYNC_NOTIFICATION flages for cpufreq policy because
> > some of
> > process will get CPU frequency by cpufreq sysfs node. It may get
> > wrong
> > frequency then call cpufreq_out_of_sync() to fixed frequency.
> 
> That's not why CPUFREQ_ASYNC_NOTIFICATION is used. It is used only
> for the cases
> where the target()/target_index() callback defers the work to some
> other entity
> (like a workqueue) and it is not guaranteed that the frequency will
> be changed
> before these helpers return.
> 
> I don't think your patch is required.
> 
> --
> viresh