iio:common:st: Prevent disable after read info raw data

This patch prevents disable sensor after read info raw data when
events are enabled.

Change-Id: Ifc160e7aa5a633c5dc976ea8b775a790a0efaf69
Signed-off-by: Lukasz Czerwinski <l.czerwinski@samsung.com>

diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 53fbc50..085eb7d 100644 (file)
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -315,7 +315,12 @@ int st_sensors_read_info_raw(struct iio_dev *indio_dev,
 
                *val = *val >> ch->scan_type.shift;
 
-               err = st_sensors_set_enable(indio_dev, false);
+               /*
+                * When events are enabled sensor should be always enabled.
+                * It prevents unnecessary sensor off.
+                */
+                if (!sdata->events_flag)
+                       err = st_sensors_set_enable(indio_dev, false);
        }
        mutex_unlock(&indio_dev->mlock);