diff options
| author | Alex Frid <afrid@nvidia.com> | 2013-08-17 20:56:33 -0700 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-14 13:41:36 -0700 |
| commit | c6bc8f15bb63294a038c8abbcad77c064da87e4c (patch) | |
| tree | a981860ba4a3c229c8e67415857e86186f50c879 /arch/arm/lib | |
| parent | 5c6bb4731c1303e787367d764716ef983d76a54e (diff) | |
ARM: Honor udelay convention for timer-based delay
Replaced strict "below" comparison in timer delay function with "below
or equal". The former may result in actual delay time below requested
(if the delay happens to start just before cycle counter advance). The
latter guarantees actual delay at/above requested.
Change-Id: I8cf87836e37647997ca6480c2476255369e8953d
Signed-off-by: Alex Frid <afrid@nvidia.com>
Reviewed-on: http://git-master/r/262858
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-by: Bo Yan <byan@nvidia.com>
Diffstat (limited to 'arch/arm/lib')
| -rw-r--r-- | arch/arm/lib/delay.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/lib/delay.c b/arch/arm/lib/delay.c index 64dbfa57204a..748c228d7126 100644 --- a/arch/arm/lib/delay.c +++ b/arch/arm/lib/delay.c @@ -51,7 +51,7 @@ static void __timer_delay(unsigned long cycles) { cycles_t start = get_cycles(); - while ((get_cycles() - start) < cycles) + while ((get_cycles() - start) <= cycles) cpu_relax(); } |