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Date: Sat, 21 Jul 2007 11:00:38 +0200 From: Thomas Meyer <thomas@...3r.de> To: Stephen Hemminger <shemminger@...ux-foundation.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: New wake ups from sky2 Stephen Hemminger schrieb: > Thomas Meyer <thomas@...3r.de> wrote: > > >> Today i did a git pull to be up to date again and i noticed in the >> powertop tool that i'll get this new entry >> >> 14,2% ( 9,1) <kernel core> : sky2_probe (sky2_idle) >> >> with around 10 interrupts per second. >> >> i think (i.e. i don't know and just guessing!) this commit is >> responsible for these wake ups: >> >> git show eb35cf60e462491249166182e3e755d3d5d91a28 >> >> Author: Stephen Hemminger <shemminger@...l.org> >> Date: Tue Jun 13 17:17:31 2006 +0900 >> >> [PATCH] sky2: stop/start hardware idle timer on suspend/resume >> >> The resume bug was caused not by an early interrupt but because the idle >> timeout was not being stopped on suspend. Also disable hardware IRQ's >> on suspend. Will need to revisit this with hotplug? >> >> Signed-off-by: Stephen Hemminger <shemminger@...l.org> >> Signed-off-by: Linus Torvalds <torvalds@...l.org> >> >> Any ideas? >> >> > > Last version has idle timer enabled. > It is a tradeoff between device hanging due to lost interrupt or wasting power. > You can make the timeout longer by setting idle_timeout module parameter larger, > (or zero which will disable it). > Ok. But do you need to start the timer when no cable is plugged in, like in the case above? mfg thomas - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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