[PATCH] v4l: mt9p031/mt9t001: Use i2c_smbus_{read|write}_word_swapped()

[Laurent Pinchart <laurent.pinchart@ideasonboard.com>]

The MT9P031 and MT9T001 sensors transfer 16-bit data on the I2C bus in
swapped order. Let the I2C core handle byte order by using the
i2c_smbus_{read|write}_word_swapped() functions.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
---
 drivers/media/video/mt9p031.c |    5 ++---
 drivers/media/video/mt9t001.c |    5 ++---
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/media/video/mt9p031.c b/drivers/media/video/mt9p031.c
index 5cfa39f..aa01c4b 100644
--- a/drivers/media/video/mt9p031.c
+++ b/drivers/media/video/mt9p031.c
@@ -131,13 +131,12 @@ static struct mt9p031 *to_mt9p031(struct v4l2_subdev *sd)
 
 static int mt9p031_read(struct i2c_client *client, u8 reg)
 {
-	s32 data = i2c_smbus_read_word_data(client, reg);
-	return data < 0 ? data : be16_to_cpu(data);
+	return i2c_smbus_read_word_swapped(client, reg);
 }
 
 static int mt9p031_write(struct i2c_client *client, u8 reg, u16 data)
 {
-	return i2c_smbus_write_word_data(client, reg, cpu_to_be16(data));
+	return i2c_smbus_write_word_swapped(client, reg, data);
 }
 
 static int mt9p031_set_output_control(struct mt9p031 *mt9p031, u16 clear,
diff --git a/drivers/media/video/mt9t001.c b/drivers/media/video/mt9t001.c
index cac1416..2ea6a08 100644
--- a/drivers/media/video/mt9t001.c
+++ b/drivers/media/video/mt9t001.c
@@ -132,13 +132,12 @@ static inline struct mt9t001 *to_mt9t001(struct v4l2_subdev *sd)
 
 static int mt9t001_read(struct i2c_client *client, u8 reg)
 {
-	s32 data = i2c_smbus_read_word_data(client, reg);
-	return data < 0 ? data : be16_to_cpu(data);
+	return i2c_smbus_read_word_swapped(client, reg);
 }
 
 static int mt9t001_write(struct i2c_client *client, u8 reg, u16 data)
 {
-	return i2c_smbus_write_word_data(client, reg, cpu_to_be16(data));
+	return i2c_smbus_write_word_swapped(client, reg, data);
 }
 
 static int mt9t001_set_output_control(struct mt9t001 *mt9t001, u16 clear,
-- 
Regards,

Laurent Pinchart