From: he, bo <bo.he@intel.com>
Date: Wed, 6 Mar 2019 02:32:20 +0000 (+0800)
Subject: io: accel: kxcjk1013: restore the range after resume.
X-Git-Tag: v4.9.171~25
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d38f661e8c816bf170304e74231ae416631f2d8d;p=thirdparty%2Fkernel%2Fstable.git

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>
---

diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 7846368003616..780f886ccbfe9 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -1340,6 +1340,8 @@ static int kxcjk1013_resume(struct device *dev)
 
 	mutex_lock(&data->mutex);
 	ret = kxcjk1013_set_mode(data, OPERATION);
+	if (ret == 0)
+		ret = kxcjk1013_set_range(data, data->range);
 	mutex_unlock(&data->mutex);
 
 	return ret;