On 11/06/2016 at 00:30:36 +0200, Arnd Bergmann wrote : > On Saturday, June 11, 2016 12:03:04 AM CEST Alexandre Belloni wrote: > > From: Cyrille Pitchen <cyrille.pitc...@atmel.com> > > > > Fix the main and slow clock .prepare() implementations which used to call > > usleep() when the scheduler wasn't ready yet. > > > > Does this have to be called that early? It seems wasteful to always > call udelay() here, when these are functions that are normally > allowed to sleep. >
Well, the main issue here is that we want to be able to prepare_enable the slow clock before we are allowed to sleep. Thinking about it when writing that, I realize that when I reworked my series, I removed the dependency between the clocksource TCB and the slow_clock. But I guess we still have one on the main clock. I'll check whether this is still necessary. -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
