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From: Tomoya MORINAGA <tomoya.rohm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Jean Delvare <khali-PUYAD+kWke1g9hUCZPvPmw@public.gmane.org>,
	Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>,
	Wolfram Sang <w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>,
	Feng Tang <feng.tang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
	Alexander Stein
	<alexander.stein-93q1YBGzJSMe9JSWTWOYM3xStJ4P+DSV@public.gmane.org>,
	linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: qi.wang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
	yong.y.wang-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
	joel.clark-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
	kok.howg.ewe-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
	Tomoya MORINAGA
	<tomoya.rohm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: [PATCH 3/3] i2c-eg20t: change timeout value 50msec to 1000msec
Date: Mon, 26 Mar 2012 14:55:25 +0900	[thread overview]
Message-ID: <1332741325-7746-3-git-send-email-tomoya.rohm@gmail.com> (raw)
In-Reply-To: <1332741325-7746-1-git-send-email-tomoya.rohm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>

Currently, during i2c works alone, wait-event timeout is not occurred.
However, as CPU load increases, timeout occurs frequently.
So, I modified like this patch.
Modifying like this patch, I've never seen the timeout event with high
load test.

Signed-off-by: Tomoya MORINAGA <tomoya.rohm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
---
 drivers/i2c/busses/i2c-eg20t.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 714b070..ec8f4fa 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -324,7 +324,7 @@ static s32 pch_i2c_wait_for_xfer_complete(struct i2c_algo_pch_data *adap)
 {
 	long ret;
 	ret = wait_event_timeout(pch_event,
-			(adap->pch_event_flag != 0), msecs_to_jiffies(50));
+			(adap->pch_event_flag != 0), msecs_to_jiffies(1000));
 
 	if (ret == 0) {
 		pch_err(adap, "timeout: %x\n", adap->pch_event_flag);
-- 
1.7.7.6

  parent reply	other threads:[~2012-03-26  5:55 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-26  5:55 [PATCH 1/3] i2c-eg20t: Modify MODULE_AUTHOR's email address Tomoya MORINAGA
2012-03-26  5:55 ` [PATCH 2/3] i2c-eg20t: Call init() when wait-event timeout occurs Tomoya MORINAGA
     [not found]   ` <1332741325-7746-2-git-send-email-tomoya.rohm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-03-26  6:34     ` [PATCH 2/3 v2] " Tomoya MORINAGA
2012-04-18 15:05     ` [PATCH 2/3] " Wolfram Sang
     [not found]       ` <20120418150544.GE19802-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2012-04-19  6:19         ` Tomoya MORINAGA
     [not found]           ` <CANKRQng5nb0nU_e1o6TLnvOwPoXX1C_bJguNyjrsVfo+mubKaw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-04-20 20:37             ` Wolfram Sang
     [not found] ` <1332741325-7746-1-git-send-email-tomoya.rohm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-03-26  5:55   ` Tomoya MORINAGA [this message]
     [not found]     ` <1332741325-7746-3-git-send-email-tomoya.rohm-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2012-04-18 15:00       ` [PATCH 3/3] i2c-eg20t: change timeout value 50msec to 1000msec Wolfram Sang
2012-04-18 14:58   ` [PATCH 1/3] i2c-eg20t: Modify MODULE_AUTHOR's email address Wolfram Sang

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