Commit de970d4e authored Mar 06, 2019 by he, bo Committed by Greg Kroah-Hartman Apr 27, 2019

io: accel: kxcjk1013: restore the range after resume.



commit fe2d3df639a7940a125a33d6460529b9689c5406 upstream.

On some laptops, kxcjk1013 is powered off when system enters S3. We need
restore the range regiter during resume. Otherwise, the sensor doesn't
work properly after S3.

Signed-off-by: he, bo <bo.he@intel.com>
Signed-off-by: Chen, Hu <hu1.chen@intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 0386fd65

drivers/iio/accel/kxcjk-1013.c

+2 −0

Original line number	Original line	Diff line number	Diff line
	@@ -1340,6 +1340,8 @@ static int kxcjk1013_resume(struct device *dev)

	mutex_lock(&data->mutex);		mutex_lock(&data->mutex);
	ret = kxcjk1013_set_mode(data, OPERATION);		ret = kxcjk1013_set_mode(data, OPERATION);
			if (ret == 0)
			ret = kxcjk1013_set_range(data, data->range);
	mutex_unlock(&data->mutex);		mutex_unlock(&data->mutex);

	return ret;		return ret;