* [PATCH] msm: timer: Decrease shift on timer clocksource
@ 2010-10-21 9:25 Jeff Ohlstein
0 siblings, 0 replies; only message in thread
From: Jeff Ohlstein @ 2010-10-21 9:25 UTC (permalink / raw)
To: linux-arm-kernel
The shift of 24 causes the shift and multiply operation to sometimes
overflow, resulting in incorrect timer values and poor performance.
Signed-off-by: Jeff Ohlstein <johlstei@codeaurora.org>
---
arch/arm/mach-msm/timer.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c
index 7689848..950100f 100644
--- a/arch/arm/mach-msm/timer.c
+++ b/arch/arm/mach-msm/timer.c
@@ -137,7 +137,7 @@ static struct msm_clock msm_clocks[] = {
.rating = 200,
.read = msm_gpt_read,
.mask = CLOCKSOURCE_MASK(32),
- .shift = 24,
+ .shift = 17,
.flags = CLOCK_SOURCE_IS_CONTINUOUS,
},
.irq = {
--
1.7.3.1
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2010-10-21 9:25 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2010-10-21 9:25 [PATCH] msm: timer: Decrease shift on timer clocksource Jeff Ohlstein
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).