From: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] mx5/6 timer: Round up tick_to_time() value
Date: Tue, 14 Aug 2012 17:01:21 +0200 (CEST) [thread overview]
Message-ID: <1237768720.2403509.1344956481504.JavaMail.root@advansee.com> (raw)
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: Beno?t Th?baudeau <benoit.thebaudeau@advansee.com>
Cc: Stefano Babic <sbabic@denx.de>
---
.../arch/arm/cpu/armv7/imx-common/timer.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git u-boot-4d3c95f.orig/arch/arm/cpu/armv7/imx-common/timer.c u-boot-4d3c95f/arch/arm/cpu/armv7/imx-common/timer.c
index 1645ff8..e2725e1 100644
--- u-boot-4d3c95f.orig/arch/arm/cpu/armv7/imx-common/timer.c
+++ u-boot-4d3c95f/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;
next reply other threads:[~2012-08-14 15:01 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-14 15:01 Benoît Thébaudeau [this message]
2012-08-17 19:55 ` [U-Boot] [PATCH] mx5/6 timer: Round up tick_to_time() value Stefano Babic
2012-08-20 7:56 ` Stefano Babic
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