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: v3.2.19~31
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fb169a0bf61e5a11d112d99471013f62e5f9f2fb;p=karo-tx-linux.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: Ben Hutchings <ben@decadent.org.uk>
---

diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 730215ea6987..2cda65bf2c0e 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -315,7 +315,7 @@ 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);