clocksource: sh_tmu: compute mult and shift before registration

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commit 66f49121ff upstream.

Since commit 98962465ed ("nohz: Prevent
clocksource wrapping during idle"), the CPU of an R2D board never goes
to idle. This commit assumes that mult and shift are assigned before
the clocksource is registered. As a consequence the safe maximum sleep
time is negative and the CPU never goes into idle.

This patch fixes the problem by moving mult and shift initialization
from sh_tmu_clocksource_enable() to sh_tmu_register_clocksource().

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

...

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Aurelien Jarno 2010-05-31 21:45:48 +00:00 • committed by Greg Kroah-Hartman

parent fe7f657830

commit a214985570

1 changed files with 11 additions and 9 deletions

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drivers/clocksource/sh_tmu.c

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