From c27e3050378ec0d96d964cbf18746a30ad00ab9f Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sat, 22 Oct 2011 04:57:54 -0300 Subject: [PATCH] [media] v4l: mt9p031/mt9t001: Use i2c_smbus_{read|write}_word_swapped() 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 Acked-by: Jonathan Cameron Acked-by: Jean Delvare Signed-off-by: Mauro Carvalho Chehab --- 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 73c068993f0..93c3ec7426e 100644 --- a/drivers/media/video/mt9p031.c +++ b/drivers/media/video/mt9p031.c @@ -132,13 +132,12 @@ 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 08074b8a273..cd81d04a529 100644 --- a/drivers/media/video/mt9t001.c +++ b/drivers/media/video/mt9t001.c @@ -133,13 +133,12 @@ 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, -- 2.41.0