diff options
Diffstat (limited to 'drivers/i2c/busses/i2c-au1550.c')
| -rw-r--r-- | drivers/i2c/busses/i2c-au1550.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/i2c/busses/i2c-au1550.c b/drivers/i2c/busses/i2c-au1550.c index d7e7c359fc3..2f684166c43 100644 --- a/drivers/i2c/busses/i2c-au1550.c +++ b/drivers/i2c/busses/i2c-au1550.c @@ -48,17 +48,14 @@ wait_xfer_done(struct i2c_au1550_data *adap) sp = (volatile psc_smb_t *)(adap->psc_base); - /* Wait for Tx FIFO Underflow. + /* Wait for Tx Buffer Empty */ for (i = 0; i < adap->xfer_timeout; i++) { - stat = sp->psc_smbevnt; + stat = sp->psc_smbstat; au_sync(); - if ((stat & PSC_SMBEVNT_TU) != 0) { - /* Clear it. */ - sp->psc_smbevnt = PSC_SMBEVNT_TU; - au_sync(); + if ((stat & PSC_SMBSTAT_TE) != 0) return 0; - } + udelay(1); } |