Hi Andy, > -----Original Message----- > From: Andy Gross [mailto:andy.gross@xxxxxxxxxx] > Sent: Thursday, May 05, 2016 10:52 PM > To: Sricharan R <sricharan@xxxxxxxxxxxxxx> > Cc: devicetree@xxxxxxxxxxxxxxx; architt@xxxxxxxxxxxxxx; linux-arm- > msm@xxxxxxxxxxxxxxx; ntelkar@xxxxxxxxxxxxxx; galak@xxxxxxxxxxxxxx; > linux-kernel@xxxxxxxxxxxxxxx; linux-i2c@xxxxxxxxxxxxxxx; iivanov@mm- > sol.com; agross@xxxxxxxxxxxxxx; dmaengine@xxxxxxxxxxxxxxx; linux-arm- > kernel@xxxxxxxxxxxxxxxxxxx > Subject: Re: [PATCH 2/2] drivers: i2c: qup: Fix error handling > > On Mon, May 02, 2016 at 10:53:57AM +0530, Sricharan R wrote: > > Among the bus errors reported from the QUP_MASTER_STATUS register > only > > NACK is considered and transfer gets suspended, while other errors are > > ignored. Correct this and suspend the transfer for other errors as > > well. This avoids unnessecary 'timeouts' which happens when waiting > > for events that would never happen when there is already an error > > condition on the bus. > > > > Signed-off-by: Sricharan R <sricharan@xxxxxxxxxxxxxx> > > --- > > drivers/i2c/busses/i2c-qup.c | 34 +++++++++++++++++++++++++--------- > > 1 file changed, 25 insertions(+), 9 deletions(-) > > Reviewed-by: Andy Gross <andy.gross@xxxxxxxxxx> > Thanks. > <snip> > > > @@ -1227,6 +1240,9 @@ static int qup_i2c_xfer_v2(struct i2c_adapter > *adap, > > struct qup_i2c_dev *qup = i2c_get_adapdata(adap); > > int ret, len, idx = 0, use_dma = 0; > > > > + qup->bus_err = 0; > > + qup->qup_err = 0; > > + > > What about the initial setting of these? Does this need to be removed from > the main xfer function? Thanks for the catch. Will remove in bam_xfer , redundant. Now that there are i2x_xfer_v2 and i2c_xfer, its not set in the old i2c_xfer call, where as it should be set there as well. I will change this and resend. Regards, Sricharan -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
