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Srinivas Pandruvada authored
This change undo the change done by 'commit 3bec2474 ("iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3")' as this breaks some USB/i2c sensor hubs. Instead of relying on HW for restoring poll and hysteresis, driver stores and restores on resume (S3). In this way user space modified settings are not lost for any kind of sensor hub behavior. In this change, whenever user space modifies sampling frequency or hysteresis driver will get the feature value from the hub and store in the per device hid_sensor_common data structure. On resume callback from S3, system will set the feature to sensor hub, if user space ever modified the feature value. Fixes: 3bec2474 ("iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3") Reported-by:
Ritesh Raj Sarraf <rrs@researchut.com> Tested-by:
Ritesh Raj Sarraf <rrs@researchut.com> Tested-by:
Song, Hongyan <hongyan.song@intel.com> Cc: stable@vger.kernel.org Signed-off-by:
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by:
Jonathan Cameron <jic23@kernel.org>
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