From: Magnus Damm <magnus.damm@gmail.com>
To: linux-sh@vger.kernel.org
Subject: [PATCH] clocksource: sh_cmt: Rate calculation fix
Date: Mon, 02 Aug 2010 09:24:05 +0000 [thread overview]
Message-ID: <20100802092405.30680.9349.sendpatchset@t400s> (raw)
From: Magnus Damm <damm@opensource.se>
Fix the rate calculation in the CMT driver.
Without this fix the clocksource runs way
too fast and we get a divide-by-zero error.
Signed-off-by: Magnus Damm <damm@opensource.se>
---
drivers/clocksource/sh_cmt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- 0001/drivers/clocksource/sh_cmt.c
+++ work/drivers/clocksource/sh_cmt.c 2010-08-02 16:52:29.000000000 +0900
@@ -445,7 +445,7 @@ static int sh_cmt_register_clocksource(s
/* clk_get_rate() needs an enabled clock */
clk_enable(p->clk);
- p->rate = clk_get_rate(p->clk) / (p->width = 16) ? 512 : 8;
+ p->rate = clk_get_rate(p->clk) / ((p->width = 16) ? 512 : 8);
clk_disable(p->clk);
/* TODO: calculate good shift from rate and counter bit width */
next reply other threads:[~2010-08-02 9:24 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-02 9:24 Magnus Damm [this message]
2010-08-04 7:45 ` [PATCH] clocksource: sh_cmt: Rate calculation fix Paul Mundt
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