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From:   "He, Bo" <bo.he@intel.com>
To:     "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-iio@vger.kernel.org" <linux-iio@vger.kernel.org>,
        "ic23@kernel.org" <ic23@kernel.org>,
        "knaack.h@gmx.de" <knaack.h@gmx.de>,
        "lars@metafoo.de" <lars@metafoo.de>,
        "pmeerw@pmeerw.net" <pmeerw@pmeerw.net>,
        "Chen, Hu1" <hu1.chen@intel.com>
Subject: [PATCH] io: accel: kxcjk1013: restore the range after resume.
Thread-Topic: [PATCH] io: accel: kxcjk1013: restore the range after resume.
Thread-Index: AdTJklHsGhceer30SUizI4A3viRlAQ==
Date:   Thu, 21 Feb 2019 03:13:44 +0000
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restore the range register in case kxcjk1013 power is off after suspend

we see the issue on some laptops, after system suspend and resume,
the CTRL_REG1 register changed from 0xc8 to 0x80, so acceleration range
is changed, the patch is to restore the acceleration range after resume.

Signed-off-by: he, bo <bo.he@intel.com>
Signed-off-by: Chen, Hu <hu1.chen@intel.com>
---
 drivers/iio/accel/kxcjk-1013.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
index 7506bd9..c6bb3be 100644
--- a/drivers/iio/accel/kxcjk-1013.c
+++ b/drivers/iio/accel/kxcjk-1013.c
@@ -1340,6 +1340,7 @@ static int kxcjk1013_resume(struct device *dev)
 
 	mutex_lock(&data->mutex);
 	ret = kxcjk1013_set_mode(data, OPERATION);
+	ret += kxcjk1013_set_range(data, data->range);
 	mutex_unlock(&data->mutex);
 
 	return ret;
-- 
2.7.4