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.pinch...@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
--
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