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iio: hid-sensors: Get feature report from sensor hub after changing power state

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Some sensor hubs require a get feature report call to be issued soon after
changing the power state of the sensor. Without this, the sensor remains in
the current state. This patch adds a call soon after the power state.

This is retained as a generic call across all sensor hubs since the behavior
has been noticed on more than one implementation.

Signed-off-by: Archana Patni <archana.patni@intel.com>
Signed-off-by: Subramony Sesha <subramony.sesha@intel.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Archana Patni 2014-05-19 12:19:00 +01:00 committed by Jonathan Cameron
parent 86281966c7
commit c0a36f08f4
1 changed files with 3 additions and 0 deletions
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3
drivers/iio/common/hid-sensors/hid-sensor-trigger.c
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@ -73,6 +73,9 @@ static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig,
(s32)report_val);
}
sensor_hub_get_feature(st->hsdev, st->power_state.report_id,
st->power_state.index,
&state_val);
return 0;
}