* [PATCH] drivers: i2c: i2c-st: Fix return in case of arbitration lost
@ 2014-02-28 12:52 Maxime COQUELIN
[not found] ` <1393591976-10771-1-git-send-email-maxime.coquelin-qxv4g6HH51o@public.gmane.org>
0 siblings, 1 reply; 2+ messages in thread
From: Maxime COQUELIN @ 2014-02-28 12:52 UTC (permalink / raw)
To: Wolfram Sang, Maxime Coquelin, linux-i2c-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA,
srinivas.kandagatla-qxv4g6HH51o, kernel-F5mvAk5X5gdBDgjK7y7TUQ
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
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] drivers: i2c: i2c-st: Fix return in case of arbitration lost
[not found] ` <1393591976-10771-1-git-send-email-maxime.coquelin-qxv4g6HH51o@public.gmane.org>
@ 2014-03-10 16:34 ` Wolfram Sang
0 siblings, 0 replies; 2+ messages in thread
From: Wolfram Sang @ 2014-03-10 16:34 UTC (permalink / raw)
To: Maxime COQUELIN
Cc: linux-i2c-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA,
srinivas.kandagatla-qxv4g6HH51o, kernel-F5mvAk5X5gdBDgjK7y7TUQ
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On Fri, Feb 28, 2014 at 01:52:56PM +0100, Maxime COQUELIN wrote:
> 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>
Applied to for-next, thanks!
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2014-02-28 12:52 [PATCH] drivers: i2c: i2c-st: Fix return in case of arbitration lost Maxime COQUELIN
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2014-03-10 16:34 ` Wolfram Sang
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