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i2c-eg20t: add stop sequence in case wait-event timeout occurs 

add stop sequence in case wait-event timeout in write processing.
(read processing already had it)

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.lapis-semi.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
hifive-unleashed-5.1
Tomoya MORINAGA 2011-10-12 13:13:04 +09:00 committed by Ben Dooks
parent 12bd314651
commit 3cf21a7c48
1 changed files with 3 additions and 0 deletions
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3
drivers/i2c/busses/i2c-eg20t.c
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@ -456,6 +456,7 @@ static s32 pch_i2c_writebytes(struct i2c_adapter *i2c_adap,
pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMIF_BIT);
return -EAGAIN;
} else { /* wait-event timeout */
pch_i2c_stop(adap);
return -ETIME;
}
@ -476,6 +477,7 @@ static s32 pch_i2c_writebytes(struct i2c_adapter *i2c_adap,
pch_clrbit(adap->pch_base_address, PCH_I2CSR,
I2CMIF_BIT);
} else { /* wait-event timeout */
pch_i2c_stop(adap);
return -ETIME;
}
}
@ -632,6 +634,7 @@ static s32 pch_i2c_readbytes(struct i2c_adapter *i2c_adap, struct i2c_msg *msgs,
pch_clrbit(adap->pch_base_address, PCH_I2CSR, I2CMIF_BIT);
return -EAGAIN;
} else { /* wait-event timeout */
pch_i2c_stop(adap);
return -ETIME;
}