Messages in this thread Patch in this message | | | From | George Cherian <> | Subject | [PATCH 1/4] i2c: xlp9xx: return ENXIO on slave address NACK | Date | Thu, 18 Jan 2018 05:39:21 +0000 |
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From: Dmitry Bazhenov <dmitry.bazhenov@auriga.com>
Fix the driver violation of the common practice to return ENXIO error on a slave address NACK.
Signed-off-by: Dmitry Bazhenov <dmitry.bazhenov@auriga.com> Signed-off-by: George Cherian <george.cherian@cavium.com> --- drivers/i2c/busses/i2c-xlp9xx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-xlp9xx.c b/drivers/i2c/busses/i2c-xlp9xx.c index b970bf8..6d78cdc 100644 --- a/drivers/i2c/busses/i2c-xlp9xx.c +++ b/drivers/i2c/busses/i2c-xlp9xx.c @@ -324,7 +324,8 @@ static int xlp9xx_i2c_xfer_msg(struct xlp9xx_i2c_dev *priv, struct i2c_msg *msg, dev_dbg(priv->dev, "transfer error %x!\n", priv->msg_err); if (priv->msg_err & XLP9XX_I2C_INTEN_BUSERR) xlp9xx_i2c_init(priv); - return -EIO; + return (priv->msg_err & XLP9XX_I2C_INTEN_NACKADDR) ? + -ENXIO : -EIO; } if (timeleft == 0) { -- 2.1.4
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