Commit c68b44bc authored by Carlos Song's avatar Carlos Song Committed by Jonathan Cameron

iio: imu: fxos8700: fix swapped ACCEL and MAGN channels readback

Because ACCEL and MAGN channels data register base address is
swapped the accelerometer and magnetometer channels readback is
swapped.

Fixes: 84e5ddd5 ("iio: imu: Add support for the FXOS8700 IMU")
Signed-off-by: default avatarCarlos Song <carlos.song@nxp.com>
Link: https://lore.kernel.org/r/20221208071911.2405922-3-carlos.song@nxp.com
Cc: <Stable@vger.kernel.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 429e1e8e
...@@ -395,9 +395,22 @@ static int fxos8700_get_data(struct fxos8700_data *data, int chan_type, ...@@ -395,9 +395,22 @@ static int fxos8700_get_data(struct fxos8700_data *data, int chan_type,
{ {
u8 base, reg; u8 base, reg;
int ret; int ret;
enum fxos8700_sensor type = fxos8700_to_sensor(chan_type);
base = type ? FXOS8700_OUT_X_MSB : FXOS8700_M_OUT_X_MSB; /*
* Different register base addresses varies with channel types.
* This bug hasn't been noticed before because using an enum is
* really hard to read. Use an a switch statement to take over that.
*/
switch (chan_type) {
case IIO_ACCEL:
base = FXOS8700_OUT_X_MSB;
break;
case IIO_MAGN:
base = FXOS8700_M_OUT_X_MSB;
break;
default:
return -EINVAL;
}
/* Block read 6 bytes of device output registers to avoid data loss */ /* Block read 6 bytes of device output registers to avoid data loss */
ret = regmap_bulk_read(data->regmap, base, data->buf, ret = regmap_bulk_read(data->regmap, base, data->buf,
......
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