drivers/rtc/rtc-da9052.c: add extra reads with timeouts to avoid returning partially updated values

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The RTC is in a different clock domain so a quick read after write
can retrieve a mangled value of the old/new values

Signed-off-by: Adam Ward <adam.ward.opensource@diasemi.com>
Tested-by: Adam Ward <adam.ward.opensource@diasemi.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Adam Ward 2015-04-16 12:45:26 -07:00 • committed by Linus Torvalds

parent 52ef84d566

commit 03cc1625e1

1 changed files with 66 additions and 21 deletions

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drivers/rtc/rtc-da9052.c

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