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clocksource: sh_tmu: Make undefined TCOR behaviour less undefined. 

Avoid undocumented vague TMU behavior when zero value is set to TCOR.

This primarily fixes up issues encountered under qemu with a zero-length
period, while the hardware itself is fairly ambivalent one way or the
other.

Signed-off-by: Shin-ichiro KAWASAKI <kawasaki@juno.dti.ne.jp>
Acked-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Shin-ichiro KAWASAKI 2009-06-21 10:56:22 +00:00 committed by Paul Mundt
parent 4e8a2372f9
commit 6f4b67b8ff
1 changed files with 1 additions and 1 deletions
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2
drivers/clocksource/sh_tmu.c
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@ -161,7 +161,7 @@ static void sh_tmu_set_next(struct sh_tmu_priv *p, unsigned long delta,
if (periodic)
sh_tmu_write(p, TCOR, delta);
else
sh_tmu_write(p, TCOR, 0);
sh_tmu_write(p, TCOR, 0xffffffff);
sh_tmu_write(p, TCNT, delta);