IIO: call sensor hub open close function
Call hid_sensor_hub_device_open when user space opens device and call
hid_sensor_hub_device_close when device is closed. This helps in
saving power.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
index 87419c4..b6e77e0 100644
--- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
+++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
@@ -34,6 +34,12 @@
struct hid_sensor_common *st = iio_trigger_get_drvdata(trig);
int state_val;
+ if (state) {
+ if (sensor_hub_device_open(st->hsdev))
+ return -EIO;
+ } else
+ sensor_hub_device_close(st->hsdev);
+
state_val = state ? 1 : 0;
if (IS_ENABLED(CONFIG_HID_SENSOR_ENUM_BASE_QUIRKS))
++state_val;