2014-02-28 12:53:30

by Maxime Coquelin

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Subject: [PATCH] drivers: i2c: i2c-st: Fix return in case of arbitration lost

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 <[email protected]>
---
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