forked from luck/tmp_suning_uos_patched
[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 <laurent.pinchart@ideasonboard.com> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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@ -132,13 +132,12 @@ static struct mt9p031 *to_mt9p031(struct v4l2_subdev *sd)
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static int mt9p031_read(struct i2c_client *client, u8 reg)
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{
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s32 data = i2c_smbus_read_word_data(client, reg);
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return data < 0 ? data : be16_to_cpu(data);
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return i2c_smbus_read_word_swapped(client, reg);
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}
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static int mt9p031_write(struct i2c_client *client, u8 reg, u16 data)
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{
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return i2c_smbus_write_word_data(client, reg, cpu_to_be16(data));
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return i2c_smbus_write_word_swapped(client, reg, data);
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}
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static int mt9p031_set_output_control(struct mt9p031 *mt9p031, u16 clear,
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@ -133,13 +133,12 @@ static inline struct mt9t001 *to_mt9t001(struct v4l2_subdev *sd)
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static int mt9t001_read(struct i2c_client *client, u8 reg)
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{
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s32 data = i2c_smbus_read_word_data(client, reg);
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return data < 0 ? data : be16_to_cpu(data);
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return i2c_smbus_read_word_swapped(client, reg);
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}
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static int mt9t001_write(struct i2c_client *client, u8 reg, u16 data)
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{
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return i2c_smbus_write_word_data(client, reg, cpu_to_be16(data));
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return i2c_smbus_write_word_swapped(client, reg, data);
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}
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static int mt9t001_set_output_control(struct mt9t001 *mt9t001, u16 clear,
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