[PATCH 3/7] i2c: Port two utility functions from Linux kernel

[Andrey Smirnov]

Signed-off-by: Andrey Smirnov <andrew.smirnov at gmail.com>
---
 include/i2c/i2c.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/include/i2c/i2c.h b/include/i2c/i2c.h
index 33a4791..cf784ca 100644
--- a/include/i2c/i2c.h
+++ b/include/i2c/i2c.h
@@ -194,6 +194,21 @@ extern s32 i2c_smbus_read_word_data(const struct i2c_client *client,
 extern s32 i2c_smbus_write_word_data(const struct i2c_client *client,
 				     u8 command, u16 value);

+static inline s32
+i2c_smbus_read_word_swapped(const struct i2c_client *client, u8 command)
+{
+	s32 value = i2c_smbus_read_word_data(client, command);
+
+	return (value < 0) ? value : swab16(value);
+}
+
+static inline s32
+i2c_smbus_write_word_swapped(const struct i2c_client *client,
+			     u8 command, u16 value)
+{
+	return i2c_smbus_write_word_data(client, command, swab16(value));
+}
+
 /* Returns the number of read bytes */
 extern s32 i2c_smbus_read_i2c_block_data(const struct i2c_client *client,
 					 u8 command, u8 length, u8 *values);
--
2.5.0