mirror of https://gitee.com/openkylin/linux.git
I2C: OMAP: Do not set the XUDF(Transmit underflow) if the underflow is not reached
Currently in the 1.153 errata handling, while waiting for transmitter underflow, if NACK is got the XUDF(Transmit underflow) flag is also set. Fix this by setting the XUDF(Transmit underflow) flag after wait for the condition is over. Cc: Alexander Shishkin <virtuoso@slind.org> Acked-by: Moiz Sonasath <m-sonasath@ti.com> Reviewed-by: Kevin Hilman <khilman@ti.com> Signed-off-by: Shubhrajyoti D <shubhrajyoti@ti.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
This commit is contained in:
parent
9aa8ec676b
commit
e7e62df09d
|
@ -730,7 +730,6 @@ static int errata_omap3_1p153(struct omap_i2c_dev *dev, u16 *stat, int *err)
|
|||
if (*stat & (OMAP_I2C_STAT_NACK | OMAP_I2C_STAT_AL)) {
|
||||
omap_i2c_ack_stat(dev, *stat & (OMAP_I2C_STAT_XRDY |
|
||||
OMAP_I2C_STAT_XDR));
|
||||
*err |= OMAP_I2C_STAT_XUDF;
|
||||
return -ETIMEDOUT;
|
||||
}
|
||||
|
||||
|
@ -743,6 +742,7 @@ static int errata_omap3_1p153(struct omap_i2c_dev *dev, u16 *stat, int *err)
|
|||
return 0;
|
||||
}
|
||||
|
||||
*err |= OMAP_I2C_STAT_XUDF;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
Loading…
Reference in New Issue