[RFC PATCH 2/5] clk: Introduce 'clk_round_rate_nearest()'

Rafael J. Wysocki rjw at rjwysocki.net
Mon May 26 04:22:32 PDT 2014


On Monday, May 26, 2014 11:59:09 AM Viresh Kumar wrote:
> On 23 May 2014 21:44, Sören Brinkmann <soren.brinkmann at xilinx.com> wrote:
> > Viresh: Could you imagine something similar for cpufreq? You suggested
> > migrating to Hz resolution. I guess that would ideally mean to follow
> > the CCF to a 64-bit type for frequencies and increasing the resolution.
> > I have a messy patch migrating cpufreq and OPP to Hz and unsigned long
> > that works on Zynq. But cpufreq has so many users that it would become
> > quite an undertaking.
> > And we'd need some new/amended OPP DT binding.
> 
> If we are going to migrate to Hz from KHz, I think we must consider the
> 64 bit stuff right now, otherwise it will bite us later.
> 
> @Rafael: What do you think?

I agree as far as the 64-bit thing goes, but is switching to Hz really
necessary?

Rafael




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