[PATCHv7 17/18] I2C: OMAP: Do not set the XUDF if the underflow is not reached

Shubhrajyoti D
2012-04-11T11:12:55Z

Currently in the 1.153 errata handling while waiting for transmitter
underflow if NACK is got the XUDF flag is also set.
The flag is set after wait for the condition is over.

Cc: Alexander Shishkin <virtuoso-0lOfPCoBze7YtjvyW6yDsg@public.gmane.org>
Acked-by: Moiz Sonasath <m-sonasath-l0cyMroinI0@public.gmane.org>
Signed-off-by: Shubhrajyoti D <shubhrajyoti-l0cyMroinI0@public.gmane.org>
---
drivers/i2c/busses/i2c-omap.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index f28bd5d..2b7182b 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -765,7 +765,6 @@ 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;
}

@@ -778,6 +777,7 @@ static int errata_omap3_1p153(struct omap_i2c_dev *dev, u16 *stat, int *err)
return 0;
}

+ *err |= OMAP_I2C_STAT_XUDF;
return 0;
}

--
1.7.4.1