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mx5/6 timer: Round up tick_to_time() value 

Round up tick_to_time() value instead of truncating it. This avoids stopping
waits instantly for low usec values, and this generally guarantees that the code
always waits for at least the requested duration.

Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
utp
Benoît Thébaudeau 2012-08-14 05:01:21 +00:00 committed by Albert ARIBAUD
parent f2d3ae0739
commit 68d919d420
1 changed files with 1 additions and 1 deletions
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2
arch/arm/cpu/armv7/imx-common/timer.c
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@ -61,7 +61,7 @@ static inline unsigned long long tick_to_time(unsigned long long tick)
static inline unsigned long long us_to_tick(unsigned long long usec)
{
usec *= CLK_32KHZ;
usec = usec * CLK_32KHZ + 999999;
do_div(usec, 1000000);
return usec;