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>
mariux64 · Oct 29, 2011 · 3cf21a7 · 3cf21a7
1 parent 12bd314
commit 3cf21a7
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
@@ -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;
 	}