Messages in this thread | | | From | dann frazier <> | Date | Thu, 22 Feb 2018 11:02:38 -0700 | Subject | Re: [PATCH 1/4] i2c: xlp9xx: return ENXIO on slave address NACK |
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On Tue, Jan 30, 2018 at 7:28 AM, George Cherian <gcherian@caviumnetworks.com> wrote: > Gentle Ping on this series.
I've been using these on a few Cavium Sabre boards, which previously had an unusable system interface (/dev/ipmi) due to timeouts or just enumerations failures. So, fwiw:
Tested-by: dann frazier <dann.frazier@canonical.com>
-dann
> On 01/18/2018 11:09 AM, George Cherian wrote: >> >> 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) { >> > > Regards > -George
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