Merge tag 'iio-fixes-for-4.11d' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

4th set of IIO fixes for the 4.12 cycle.

core
 - fix IIO_VAL_FRACTIONAL_LOG2 handling for negative values.
bmg160
 - reset chip on probe to avoid a failure on some systems
cros_ec
 - return type correctly when reading raw and calibbias data.
hid-sensor-accel
 - fix a duplicate scan index error due to wrong number of channels
 for gravity sensor.
hid-sensors
 - ensure a get_feature is always done before the first set feature to
 avoid issues with wrong cached values.
st-pressure
 - initalize lps22hb boot time to avoid giving stale data.

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
index 7afdac42ed42..01e02b9926d4 100644
--- a/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
+++ b/drivers/iio/common/hid-sensors/hid-sensor-attributes.c
@@ -379,6 +379,8 @@ int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev,
 {
 
 	struct hid_sensor_hub_attribute_info timestamp;
+	s32 value;
+	int ret;
 
 	hid_sensor_get_reporting_interval(hsdev, usage_id, st);
 
@@ -417,6 +419,14 @@ int hid_sensor_parse_common_attributes(struct hid_sensor_hub_device *hsdev,
 		st->sensitivity.index, st->sensitivity.report_id,
 		timestamp.index, timestamp.report_id);
 
+	ret = sensor_hub_get_feature(hsdev,
+				st->power_state.report_id,
+				st->power_state.index, sizeof(value), &value);
+	if (ret < 0)
+		return ret;
+	if (value < 0)
+		return -EINVAL;
+
 	return 0;
 }
 EXPORT_SYMBOL(hid_sensor_parse_common_attributes);