---

yaml --- r: 188031 b: refs/heads/master c: 0a9c147 h: refs/heads/master i: 188029: 6b3cf42 188027: 9438bb4 188023: 91115d2 188015: 0381387 187999: 4aaf7e7 187967: 4d4a899 187903: 163ff86 v: v3
git-mirror · Mar 13, 2010 · ac25f13 · ac25f13
1 parent 86457ba
commit ac25f13
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Showing 3 changed files with 12 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d07b56b3098b9f32ae6dedeacbc594bd01dcfcd1
+refs/heads/master: 0a9c14751377a1407f5e35791e13651d2fc7801c
diff --git a/trunk/drivers/i2c/algos/i2c-algo-bit.c b/trunk/drivers/i2c/algos/i2c-algo-bit.c
@@ -522,6 +522,12 @@ static int bit_xfer(struct i2c_adapter *i2c_adap,
 	int i, ret;
 	unsigned short nak_ok;
 
+	if (adap->pre_xfer) {
+		ret = adap->pre_xfer(i2c_adap);
+		if (ret < 0)
+			return ret;
+	}
+
 	bit_dbg(3, &i2c_adap->dev, "emitting start condition\n");
 	i2c_start(adap);
 	for (i = 0; i < num; i++) {
@@ -570,6 +576,9 @@ static int bit_xfer(struct i2c_adapter *i2c_adap,
 bailout:
 	bit_dbg(3, &i2c_adap->dev, "emitting stop condition\n");
 	i2c_stop(adap);
+
+	if (adap->post_xfer)
+		adap->post_xfer(i2c_adap);
 	return ret;
 }
 

diff --git a/trunk/include/linux/i2c-algo-bit.h b/trunk/include/linux/i2c-algo-bit.h
@@ -36,6 +36,8 @@ struct i2c_algo_bit_data {
 	void (*setscl) (void *data, int state);
 	int  (*getsda) (void *data);
 	int  (*getscl) (void *data);
+	int  (*pre_xfer)  (struct i2c_adapter *);
+	void (*post_xfer) (struct i2c_adapter *);
 
 	/* local settings */
 	int udelay;		/* half clock cycle time in us,