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(parent: f468476) | patch
ARM: OMAP: Avoid updating system time for sub-jiffy interrupts
authorTony Lindgren <tony@atomide.com>
Thu, 7 Dec 2006 22:01:23 +0000 (14:01 -0800)
committerTony Lindgren <tony@atomide.com>
Mon, 16 Apr 2007 18:41:03 +0000 (18:41 +0000)
commiteb62323f13238c082c35fdcad7109b8201d98cf8
tree90790ed1431f1e578b1059c5016c11348eead058tree | snapshot
parentf4684767317e93139a6d29e035d80802a466561ecommit | diff
ARM: OMAP: Avoid updating system time for sub-jiffy interrupts

Updating system time and reprogramming timer can cause latency
issues on busy systems with lots of interrupts with constant
updating of time and reprogramming the system timer.

If a non-timer dyntick interrupt happens within a jiffy from
the last interrupt, updating time and reprogramming the timer
is unnecessary as we will get a timer interrupt soon anyways.

Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/plat-omap/timer32k.c diff | blob | history
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