diff --git a/drivers/i2c/busses/i2c-bfin-twi.c b/drivers/i2c/busses/i2c-bfin-twi.c
index 6311039..67224a4 100644
--- a/drivers/i2c/busses/i2c-bfin-twi.c
+++ b/drivers/i2c/busses/i2c-bfin-twi.c
@@ -44,7 +44,6 @@
 #define TWI_I2C_MODE_COMBINED		0x04
 
 struct bfin_twi_iface {
-	struct mutex		twi_lock;
 	int			irq;
 	spinlock_t		lock;
 	char			read_write;
@@ -228,12 +227,8 @@
 	if (!(bfin_read_TWI_CONTROL() & TWI_ENA))
 		return -ENXIO;
 
-	mutex_lock(&iface->twi_lock);
-
 	while (bfin_read_TWI_MASTER_STAT() & BUSBUSY) {
-		mutex_unlock(&iface->twi_lock);
 		yield();
-		mutex_lock(&iface->twi_lock);
 	}
 
 	ret = 0;
@@ -310,9 +305,6 @@
 			break;
 	}
 
-	/* Release mutex */
-	mutex_unlock(&iface->twi_lock);
-
 	return ret;
 }
 
@@ -330,12 +322,8 @@
 	if (!(bfin_read_TWI_CONTROL() & TWI_ENA))
 		return -ENXIO;
 
-	mutex_lock(&iface->twi_lock);
-
 	while (bfin_read_TWI_MASTER_STAT() & BUSBUSY) {
-		mutex_unlock(&iface->twi_lock);
 		yield();
-		mutex_lock(&iface->twi_lock);
 	}
 
 	iface->writeNum = 0;
@@ -502,9 +490,6 @@
 
 	rc = (iface->result >= 0) ? 0 : -1;
 
-	/* Release mutex */
-	mutex_unlock(&iface->twi_lock);
-
 	return rc;
 }
 
@@ -555,7 +540,6 @@
 	struct i2c_adapter *p_adap;
 	int rc;
 
-	mutex_init(&(iface->twi_lock));
 	spin_lock_init(&(iface->lock));
 	init_completion(&(iface->complete));
 	iface->irq = IRQ_TWI;