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(parent: 1170ef6) | 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, 19 Mar 2007 20:40:11 +0000 (16:40 -0400)
commitea2ebcf59533aee2f7efeaf253f50acbe333ab71
tree52064c37f04e5a2f7ac8bc1c5ab16a8b636588e6tree | snapshot
parent1170ef6733f3556d36f0f209c98e65c4eaf8e890commit | 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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