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iio: imu: st_lsm6dsx: fix ODR check in st_lsm6dsx_write_raw

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commit fc3f6ad7f5dc6c899fbda0255865737bac88c2e0 upstream.

Since st_lsm6dsx i2c master controller relies on accel device as trigger
and slave devices can run at different ODRs we must select an accel_odr >=
slave_odr. Report real accel ODR in st_lsm6dsx_check_odr() in order to
properly set sensor frequency in st_lsm6dsx_write_raw and avoid to
report unsupported frequency

Fixes: 6ffb55e5009ff ("iio: imu: st_lsm6dsx: introduce ST_LSM6DSX_ID_EXT sensor ids")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Lorenzo Bianconi 2019-10-27 19:02:30 +01:00 committed by Greg Kroah-Hartman
parent 4b41b1c4eb
commit 5d8fb67d40
1 changed files with 5 additions and 4 deletions
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9
drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_core.c
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@ -985,8 +985,7 @@ int st_lsm6dsx_check_odr(struct st_lsm6dsx_sensor *sensor, u16 odr, u8 *val)
return -EINVAL;
*val = odr_table->odr_avl[i].val;
return 0;
return odr_table->odr_avl[i].hz;
}
static u16 st_lsm6dsx_check_odr_dependency(struct st_lsm6dsx_hw *hw, u16 odr,
@ -1149,8 +1148,10 @@ static int st_lsm6dsx_write_raw(struct iio_dev *iio_dev,
case IIO_CHAN_INFO_SAMP_FREQ: {
u8 data;
err = st_lsm6dsx_check_odr(sensor, val, &data);
if (!err)
val = st_lsm6dsx_check_odr(sensor, val, &data);
if (val < 0)
err = val;
else
sensor->odr = val;
break;
}