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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:
Shubhrajyoti D 2012-05-29 16:26:21 +05:30 committed by Wolfram Sang
parent 9aa8ec676b
commit e7e62df09d
1 changed files with 1 additions and 1 deletions
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2
drivers/i2c/busses/i2c-omap.c
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@ -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;
}