From 68d919d42053af99c5220d0469aa4b3de2ae1c55 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Beno=C3=AEt=20Th=C3=A9baudeau?=
<benoit.thebaudeau@advansee.com>
Date: Tue, 14 Aug 2012 05:01:21 +0000
Subject: [PATCH] mx5/6 timer: Round up tick_to_time() value
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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>
---
arch/arm/cpu/armv7/imx-common/timer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/cpu/armv7/imx-common/timer.c b/arch/arm/cpu/armv7/imx-common/timer.c
index 1645ff83f4..e2725e1a64 100644
--- a/arch/arm/cpu/armv7/imx-common/timer.c
+++ b/arch/arm/cpu/armv7/imx-common/timer.c
@@ -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;
--
2.39.5