From: Manuel Lauss <manuel.lauss-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
To: Linux-I2C <linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>
Cc: Manuel Lauss <manuel.lauss-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
Subject: [PATCH 3/4] i2c/au1550: increase timeout limit
Date: Thu, 14 Jul 2011 10:56:54 +0200 [thread overview]
Message-ID: <1310633815-18817-4-git-send-email-manuel.lauss@googlemail.com> (raw)
In-Reply-To: <1310633815-18817-1-git-send-email-manuel.lauss-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
The timeout waiting for various events to occur is tailored for
a module clock of 50MHz. On the DB1300 board only 48MHz can be
supplied to the i2c module, which results in the timeout aborting
complex transfers to slaves slightly too early if they employ
for example clock stretching.
With this change the WM8731 codec on the DB1300 board is correctly
detected and initialized.
Signed-off-by: Manuel Lauss <manuel.lauss-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
---
drivers/i2c/busses/i2c-au1550.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/i2c/busses/i2c-au1550.c b/drivers/i2c/busses/i2c-au1550.c
index 98ee11a..36d1b29 100644
--- a/drivers/i2c/busses/i2c-au1550.c
+++ b/drivers/i2c/busses/i2c-au1550.c
@@ -344,7 +344,7 @@ i2c_au1550_probe(struct platform_device *pdev)
ret = -EIO;
goto out_map;
}
- priv->xfer_timeout = 200;
+ priv->xfer_timeout = 400;
priv->adap.nr = pdev->id;
priv->adap.algo = &au1550_algo;
--
1.7.6
next prev parent reply other threads:[~2011-07-14 8:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-14 8:56 [PATCH 0/4] i2c: i2c-au1550 updates Manuel Lauss
[not found] ` <1310633815-18817-1-git-send-email-manuel.lauss-gM/Ye1E23mwN+BqQ9rBEUg@public.gmane.org>
2011-07-14 8:56 ` [PATCH 1/4] i2c/au1550: remove usage of volatile keyword Manuel Lauss
2011-07-14 8:56 ` [PATCH 2/4] i2c/au1550: remove unused ack_timeout Manuel Lauss
2011-07-14 8:56 ` Manuel Lauss [this message]
[not found] ` <CAM=Q2csugEfNxLQ=byjqgWb4y34_AXqJJJay_kP6dfTHLUZTeA@mail.gmail.com>
[not found] ` <CAM=Q2csugEfNxLQ=byjqgWb4y34_AXqJJJay_kP6dfTHLUZTeA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-07-18 9:31 ` Fwd: [PATCH 3/4] i2c/au1550: increase timeout limit Shubhrajyoti
[not found] ` <4E23FD8A.50600-l0cyMroinI0@public.gmane.org>
2011-07-18 11:12 ` Manuel Lauss
2011-07-14 8:56 ` [PATCH 4/4] i2c/au1550: dev_pm_ops conversion Manuel Lauss
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