On Wed, 2018-05-23 at 11:00 -0700, Tony Lindgren wrote: > * Andy Shevchenko <[email protected]> [180522 21:54]: > > On Thu, May 17, 2018 at 10:48 PM, Tony Lindgren <[email protected]> > > wrote: > > > * Andy Shevchenko <[email protected]> [180517 16:38]: > > > > On Thu, May 17, 2018 at 4:48 PM, Tony Lindgren <[email protected] > > > > > wrote: > > > > > * Sebastian Andrzej Siewior <[email protected]> [180516 > > > > > 10:49]: > > > > > The idea breaking PM seems silly to me considering that we've > > > > > had > > > > > it working for years already. > > > > > > > > Same question / note. World is much more complex than just > > > > being OMAP. > > > > > > Sorry but you are making assumptions about hardware being powered > > > on > > > all the time. > > > > Nope, other way around. The so called "support" _prevents_ our > > hardware to go to sleep. > > Hmm sorry now I'm all confused what issues you're having. > > I thought you said earlier the issue was that you wanted to keep > the console enabled all the time and never idle?
Yes, for kernel console. To be clear, if user supplies "console=ttySx" it keeps powered on always. But if there is no such parameter, we are fine with RPM. Letting kernel console do power management on the systems without irq_safe hack is dangerous in terms of loosing important data (crash, or some other stuff which needs atomic context: kgdb?). -- Andy Shevchenko <[email protected]> Intel Finland Oy
