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[PATCH-v4,03/11] i2c: pxa: Return I2C_RETRY when timeout in pio mode

Message ID 1436859410-28878-4-git-send-email-vaibhav.hiremath@linaro.org
State Accepted
Headers show

Commit Message

Vaibhav Hiremath July 14, 2015, 7:36 a.m. UTC 
From: Shouming Wang <wangshm@marvell.com>

In case of timeout in pio mode of operation return I2C_RETRY.
This behavior will be same as interrupt mode of operation.

Signed-off-by: Shouming Wang <wangshm@marvell.com>
[vaibhav.hiremath@linaro.org: Updated changelog]
Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
---
 drivers/i2c/busses/i2c-pxa.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/i2c/busses/i2c-pxa.c b/drivers/i2c/busses/i2c-pxa.c
index 023e59f..632008f 100644
--- a/drivers/i2c/busses/i2c-pxa.c
+++ b/drivers/i2c/busses/i2c-pxa.c
@@ -745,8 +745,10 @@  static int i2c_pxa_do_pio_xfer(struct pxa_i2c *i2c,
 	ret = i2c->msg_idx;
 
 out:
-	if (timeout == 0)
+	if (timeout == 0) {
 		i2c_pxa_scream_blue_murder(i2c, "timeout");
+		ret = I2C_RETRY;
+	}
 
 	return ret;
 }