* PM: timeout waiting for write of PM_WKEN_WKUP.EN_IO_CHAIN @ 2009-05-14 15:57 Kevin Hilman 2009-05-15 6:26 ` Kalle Jokiniemi 0 siblings, 1 reply; 2+ messages in thread From: Kevin Hilman @ 2009-05-14 15:57 UTC (permalink / raw) To: Kalle Jokiniemi; +Cc: linux-omap Kalle, In your "Enable IO-CHAIN wakeup" patch[1], you set a timout based on 1000 tries of reading back from PM_WKST_WKUP. Just curious how you came up with that value. On ES3.1 3430SDP, some TI folks are seeing that timeout warning every time hitting idle. Kevin [1] http://marc.info/?l=linux-omap&m=123807750921423&w=2 ^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: PM: timeout waiting for write of PM_WKEN_WKUP.EN_IO_CHAIN 2009-05-14 15:57 PM: timeout waiting for write of PM_WKEN_WKUP.EN_IO_CHAIN Kevin Hilman @ 2009-05-15 6:26 ` Kalle Jokiniemi 0 siblings, 0 replies; 2+ messages in thread From: Kalle Jokiniemi @ 2009-05-15 6:26 UTC (permalink / raw) To: Kevin Hilman; +Cc: linux-omap@vger.kernel.org On Thu, 2009-05-14 at 18:57 +0300, Kevin Hilman wrote: > Kalle, > > In your "Enable IO-CHAIN wakeup" patch[1], you set a timout based on > 1000 tries of reading back from PM_WKST_WKUP. > > Just curious how you came up with that value. I tested it around a few times, and the loop seemed to run 2 iterations max. 1000 is just a random (big enough) number that I think should work if everything is ok. > > On ES3.1 3430SDP, some TI folks are seeing that timeout warning > every time hitting idle. Then there is something wrong and the io-chain enable is not working. Please try removing the timeout and see if it hangs completely. I don't have a SDP to test on. - Kalle > > Kevin > > [1] http://marc.info/?l=linux-omap&m=123807750921423&w=2 ^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2009-05-15 6:26 UTC | newest] Thread overview: 2+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2009-05-14 15:57 PM: timeout waiting for write of PM_WKEN_WKUP.EN_IO_CHAIN Kevin Hilman 2009-05-15 6:26 ` Kalle Jokiniemi
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