Commit f2be64b3 authored Jun 28, 2005 by Tony Lindgren Committed by Russell King Jun 28, 2005

[PATCH] ARM: 2760/1: Add a warning on dynamic tick timekeeping on some platforms



Patch from Tony Lindgren

This patch was suggested by RMK, and adds a warning on the accuracy
of timekeeping when using dynamic tick on some platforms. Depending
on the timer implementation, dynamic tick may affect the accuracy of
timekeeping.
Currently at least OMAP is known to have accurate timekeeping with
dynamic tick.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent 072cd703

arch/arm/Kconfig

+5 −0

Original line number	Diff line number	Diff line
		@@ -361,6 +361,11 @@ config NO_IDLE_HZ
		Alternatively, if you want dynamic tick automatically enabled
		during boot, pass "dyntick=enable" via the kernel command string.

		Please note that dynamic tick may affect the accuracy of
		timekeeping on some platforms depending on the implementation.
		Currently at least OMAP platform is known to have accurate
		timekeeping with dynamic tick.

		config ARCH_DISCONTIGMEM_ENABLE
		bool
		default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)