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Date:   Wed,  6 Mar 2019 10:32:20 +0800
From:   "Chen, Hu" <>
To:     unlisted-recipients:; (no To-header on input)
        Jonathan Cameron <>,
        Hartmut Knaack <>,
        Lars-Peter Clausen <>,
        Peter Meerwald-Stadler <>,
        Hans de Goede <>,
        Stephan Gerhold <>,,
Subject: [PATCH v3] io: accel: kxcjk1013: restore the range after resume.

From: "he, bo" <>

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 <>
Signed-off-by: Chen, Hu <>
 v3: Avoid unnecessary mutex_unlock (Hans).
 v2: Handle return value independently (Jonathan).

 drivers/iio/accel/kxcjk-1013.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 7096e577b23f..50f3ff386bea 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -1437,6 +1437,8 @@ static int kxcjk1013_resume(struct device *dev)
 	ret = kxcjk1013_set_mode(data, OPERATION);
+	if (ret == 0)
+		ret = kxcjk1013_set_range(data, data->range);
 	return ret;

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