[Dynamicpower-devel] Re: OMAP jiffies scale issue

[Todd P. <tp...@mv...>]

Vladimir A. Barinov wrote:
> Hi Todd,
> 
> This is a patch for loops_per_jiffie issue in OMAP DPM.
> The loops_per_jiffie are not correctly calculated by omap-dpm driver so 
> the BogoMIPS in /proc/cpuinfo are always 0.
> 
> That was due to the dpll_rate exponent is Hz and other values are MHz.
> The cpu_rate then is recalculated using dpll_rate so the 
> old_cpu_freq/new_cpu_freq ~ MHz and the jiffies scale calculation fails 
> in dpm_compute_lpj(old_cpu_rate, new_cpu_rate).
> I decided to scale all clk_rates to MHz, because the dpm_compute_lpj() 
> cann't operate with high values.
> I removed old get_dpll_rate() to the new scheme (in order to mostly 
> conform with new clock.c) and added get_ckref_rate() instead of old 
> source_clock.
> 
> Also I made workaround to the issue of VCORE voltage scaling - the DPLL 
> cann't be changed with LOW VCORE on OMAP1710H3 (I used the dpm setup 
> script and then consequently changed polycies).

Thanks Vladimir, I've got it queued up for next release,

-- 
Todd