Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1391775
| From | Pavel Machek <pavel@ucw.cz> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: Nokia N900 retention mode in v4.6, camera buttons fun |
| Date | 2016-05-01 11:00 +0200 |
| Message-ID | <rtVom-6wL-5@gated-at.bofh.it> (permalink) |
| References | (5 earlier) <rn5LQ-7sP-9@gated-at.bofh.it> <rn9w6-1Xf-13@gated-at.bofh.it> <roZ9i-8b4-21@gated-at.bofh.it> <rqmwN-1cP-9@gated-at.bofh.it> <rtmTE-3yl-27@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Re: Nokia N900 retention mode in v4.6, camera buttons fun Sebastian Reichel <sre@kernel.org> - 2016-04-29 22:10 +0200
Re: Nokia N900 retention mode in v4.6, camera buttons fun Pavel Machek <pavel@ucw.cz> - 2016-05-01 11:00 +0200
Re: Nokia N900 retention mode in v4.6, camera buttons fun Sebastian Reichel <sre@kernel.org> - 2016-05-01 17:50 +0200
Re: Nokia N900 retention mode in v4.6, camera buttons fun Sebastian Reichel <sre@kernel.org> - 2016-05-02 22:20 +0200
csiph-web