On Wed, Oct 07, 2009 at 11:38:16PM -0400, Mike Frysinger wrote: > From: Michael Hennerich <[email protected]> > > Add some debug() code to decode the error register.
are you sure you want such verbose debug, if someone issues a bus-scan then you'll be in for a treat of debuggyness. > Signed-off-by: Michael Hennerich <[email protected]> > Signed-off-by: Mike Frysinger <[email protected]> > --- > drivers/i2c/busses/i2c-bfin-twi.c | 12 ++++++++++++ > 1 files changed, 12 insertions(+), 0 deletions(-) > > diff --git a/drivers/i2c/busses/i2c-bfin-twi.c > b/drivers/i2c/busses/i2c-bfin-twi.c > index bbce6bd..be85e3d 100644 > --- a/drivers/i2c/busses/i2c-bfin-twi.c > +++ b/drivers/i2c/busses/i2c-bfin-twi.c > @@ -156,6 +156,18 @@ static void bfin_twi_handle_interrupt(struct > bfin_twi_iface *iface) > write_MASTER_CTL(iface, 0); > SSYNC(); > iface->result = -EIO; > + > + if (mast_stat & LOSTARB) > + dev_dbg(&iface->adap.dev, "Lost Arbitration\n"); > + if (mast_stat & ANAK) > + dev_dbg(&iface->adap.dev, "Address Not Acknowledged\n"); > + if (mast_stat & DNAK) > + dev_dbg(&iface->adap.dev, "Data Not Acknowledged\n"); > + if (mast_stat & BUFRDERR) > + dev_dbg(&iface->adap.dev, "Buffer Read Error\n"); > + if (mast_stat & BUFWRERR) > + dev_dbg(&iface->adap.dev, "Buffer Write Error\n"); > + > /* if both err and complete int stats are set, return proper > * results. > */ > -- > 1.6.5.rc2 > > -- > 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 -- Ben ([email protected], http://www.fluff.org/) 'a smiley only costs 4 bytes' -- 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
