On Fri 2016-04-29 22:06:00, Sebastian Reichel wrote: > Hi, > > On Thu, Apr 21, 2016 at 03:04:50PM +0200, Pali Rohár wrote: > > > CONFIG_HSI breaks power management completely, so power management > > > with modem will be another topic. > > > > Sebastian, any idea why power management does not work for HSI? > > I wasn't aware, that pm_runtime_irq_safe() basically breaks runtime > PM until Tony's fix for musb (even though it's logical when thinking > about it). Currently omap-ssi and omap-ssi-port make use of > pm_runtime_irq_safe(). > > Since pm_runtime_get_sync/pm_runtime_put_sync is called from > tasklets in omap-ssi (and omap-ssi-port) it cannot be simply > removed. So fixing PM for the ssi controller requires reworking > the driver in a non trivial way. I see latest series, and it also talks about frequency scaling. But I guess it is not going to fix this issue? Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
