[PATCH] cpufreq: Avoid unnecessary frequency updates due to mismatch

[Rex-BC Chen]

On Wed, 2022-05-04 at 13:51 +0530, Viresh Kumar wrote:
> For some platforms, the frequency returned by hardware may be
> slightly
> different from what is provided in the frequency table. For example,
> hardware may return 499 MHz instead of 500 MHz. In such cases it is
> better to avoid getting into unnecessary frequency updates, as we may
> end up switching policy->cur between the two and sending unnecessary
> pre/post update notifications, etc.
> 
> This patch has chosen allows the hardware frequency and table
> frequency
> to deviate by 1 MHz for now, we may want to increase it a bit later
> on
> if someone still complains.
> 
> Reported-by: Rex-BC Chen <rex-bc.chen at mediatek.com>
> Signed-off-by: Viresh Kumar <viresh.kumar at linaro.org>
> ---
> 

Hello Viresh,

Thanks for your help!
Jia-wei verified this patch in his device, and I help him to add this.

Tested-by: Jia-wei Chang <jia-wei.chang at mediatek.com>

BRs,
Rex