From: johlstei@codeaurora.org (Jeff Ohlstein)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] msm: timer: Decrease shift on timer clocksource
Date: Thu, 21 Oct 2010 02:25:45 -0700 [thread overview]
Message-ID: <1287653148-1103-1-git-send-email-johlstei@codeaurora.org> (raw)
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.
reply other threads:[~2010-10-21 9:25 UTC|newest]
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