Mike Frysinger b6de860651 rtc-bfin: fix state restoration when resuming ... Much (but not all) of the RTC state is kept in the RTC peripheral which has its own power domain. Periodically (1 HZ), that state is synced from one power domain to the other (peripheral->core). When we are resuming, we need to wait for the sync to occur so that we don't get a mismatch of reading undefined state in the rest of the driver. Further, once the externally maintained bits have been synced back into the core, we then need to restore the bits maintained in the core. In our particular case, that is just the write completion interrupt bit. If we don't do any of this, working with the RTC causes ~5 second delays from time to time after waking up due to the write completion interrupt never firing. Reported-by: Michael Dean <mdean@aeronix.com> Reported-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Acked-by: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2010-09-09 18:57:22 -07:00
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infiniband	Merge branches 'cxgb3' and 'nes' into for-linus	2010-09-08 14:43:28 -07:00
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rtc	rtc-bfin: fix state restoration when resuming	2010-09-09 18:57:22 -07:00
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