From: Zhiwu Song <[email protected]> let i2c core retry 3 times as sometimes we get random noack and timeout even when we access an existing i2c client.
Signed-off-by: Zhiwu Song <[email protected]> Signed-off-by: Barry Song <[email protected]> --- drivers/i2c/busses/i2c-sirf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-sirf.c b/drivers/i2c/busses/i2c-sirf.c index d2b7913..90adc2d 100644 --- a/drivers/i2c/busses/i2c-sirf.c +++ b/drivers/i2c/busses/i2c-sirf.c @@ -230,7 +230,7 @@ static int i2c_sirfsoc_xfer_msg(struct sirfsoc_i2c *siic, struct i2c_msg *msg) while (readl(siic->base + SIRFSOC_I2C_CTRL) & SIRFSOC_I2C_RESET) cpu_relax(); } - return siic->err_status ? -EIO : 0; + return siic->err_status ? -EAGAIN : 0; } static u32 i2c_sirfsoc_func(struct i2c_adapter *adap) @@ -334,6 +334,7 @@ static int i2c_sirfsoc_probe(struct platform_device *pdev) adap->algo = &i2c_sirfsoc_algo; adap->algo_data = siic; + adap->retries = 3; adap->dev.of_node = pdev->dev.of_node; adap->dev.parent = &pdev->dev; -- 1.8.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
