---

yaml
---
r: 266954
b: refs/heads/master
c: 555feda
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 18694886bddb2d4d905535a0149aeef3b5f9c936
+refs/heads/master: 555fedacc366c4aaf48270da2504dfa97c41a130

trunk/drivers/base/regmap/regmap.c

@@ -211,13 +211,19 @@ static int _regmap_raw_write(struct regmap *map, unsigned int reg,
 
 	map->format.format_reg(map->work_buf, reg);
 
-	/* Try to do a gather write if we can */
-	if (map->bus->gather_write)
+	/* If we're doing a single register write we can probably just
+	 * send the work_buf directly, otherwise try to do a gather
+	 * write.
+	 */
+	if (val == map->work_buf + map->format.reg_bytes)
+		ret = map->bus->write(map->dev, map->work_buf,
+				      map->format.reg_bytes + val_len);
+	else if (map->bus->gather_write)
 		ret = map->bus->gather_write(map->dev, map->work_buf,
 					     map->format.reg_bytes,
 					     val, val_len);
 
-	/* Otherwise fall back on linearising by hand. */
+	/* If that didn't work fall back on linearising by hand. */
 	if (ret == -ENOTSUPP) {
 		len = map->format.reg_bytes + val_len;
 		buf = kmalloc(len, GFP_KERNEL);
@@ -326,7 +332,7 @@ static int _regmap_raw_read(struct regmap *map, unsigned int reg, void *val,
 		u8[0] |= map->bus->read_flag_mask;
 
 	ret = map->bus->read(map->dev, map->work_buf, map->format.reg_bytes,
-			     val, map->format.val_bytes);
+			     val, val_len);
 	if (ret != 0)
 		return ret;