From: Tomoya MORINAGA <tomoya.rohm@gmail.com>
Date: Mon, 26 Mar 2012 05:55:25 +0000 (+0900)
Subject: i2c-eg20t: change timeout value 50msec to 1000msec
X-Git-Tag: v3.3.7~7
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=37b37faa8a902161602c4bb536101739701b79d0;p=thirdparty%2Fkernel%2Fstable.git

i2c-eg20t: change timeout value 50msec to 1000msec

commit 8a52f9f347da721b199b7f9dcc0168bbe7d0baae upstream.

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@gmail.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index ca88776410402..84f98188d8172 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -318,7 +318,7 @@ 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);