iio: imu: inv_mpu6050: simplify polling magnetometer

Do not change the sampling rate value. Let userspace decide what
is the sampling rate to use.
Read only the requested axis.

Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Jean-Baptiste Maneyrol 2020-02-19 15:39:49 +01:00 • committed by Jonathan Cameron
commit 3c1024aa99