From: Maxime COQUELIN <maxime.coquelin-qxv4g6HH51o@public.gmane.org>
To: Wolfram Sang <wsa-z923LK4zBo2bacvFa/9K2g@public.gmane.org>,
Maxime Coquelin <maxime.coquelin-qxv4g6HH51o@public.gmane.org>,
linux-i2c-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
srinivas.kandagatla-qxv4g6HH51o@public.gmane.org,
kernel-F5mvAk5X5gdBDgjK7y7TUQ@public.gmane.org
Subject: [PATCH] drivers: i2c: i2c-st: Fix return in case of arbitration lost
Date: Fri, 28 Feb 2014 13:52:56 +0100 [thread overview]
Message-ID: <1393591976-10771-1-git-send-email-maxime.coquelin@st.com> (raw)
This patch fixes the error returned to the i2c_transfer function
to -EAGAIN in case of arbitratin lost, so that the retry mechanism
can be used.
Signed-off-by: Maxime Coquelin <maxime.coquelin-qxv4g6HH51o@public.gmane.org>
---
drivers/i2c/busses/i2c-st.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-st.c b/drivers/i2c/busses/i2c-st.c
index 9cf715d..8720161 100644
--- a/drivers/i2c/busses/i2c-st.c
+++ b/drivers/i2c/busses/i2c-st.c
@@ -574,7 +574,7 @@ static irqreturn_t st_i2c_isr_thread(int irq, void *data)
writel_relaxed(it, i2c_dev->base + SSC_IEN);
st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STOPG);
- c->result = -EIO;
+ c->result = -EAGAIN;
break;
default:
--
1.9.0
next reply other threads:[~2014-02-28 12:52 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-28 12:52 Maxime COQUELIN [this message]
[not found] ` <1393591976-10771-1-git-send-email-maxime.coquelin-qxv4g6HH51o@public.gmane.org>
2014-03-10 16:34 ` [PATCH] drivers: i2c: i2c-st: Fix return in case of arbitration lost Wolfram Sang
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