]> git.karo-electronics.de Git - karo-tx-linux.git/commitdiff
i2c-eg20t: change timeout value 50msec to 1000msec
authorTomoya MORINAGA <tomoya.rohm@gmail.com>
Mon, 26 Mar 2012 05:55:25 +0000 (14:55 +0900)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 21 May 2012 17:46:23 +0000 (10:46 -0700)
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>
drivers/i2c/busses/i2c-eg20t.c

index ca8877641040284e4eb7964c9abe63a7e2d4a11d..84f98188d817285452b842f9c82577ef6a237c33 100644 (file)
@@ -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);