* Ladislav Michl <ladis@xxxxxxxxxxxxxx> [171128 17:01]:
> On Tue, Nov 28, 2017 at 06:39:13AM -0800, Tony Lindgren wrote:
> > Limiting things to C1 with cpuidle is probably what you need
> > for having USB also working.
>
> With echo 1 > /sys/devices/system/cpu/cpu0/cpuidle/state{1-6}/disable
> jitter is about 100us which is about 3x worse than with CONFIG_PM
> disabled (and much better when idling), but decoder works with
> occassional errors.
OK sounds like there is still something happening in the idle path
beyond WFI then.
> Anyway, it would be nice to find out why USB does not work with CONFIG_PM
> disabled :)
Sure.
Tony
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