Messages in this thread Patch in this message | | | From | "Chen, Hu" <> | Subject | [PATCH v2] io: accel: kxcjk1013: restore the range after resume. | Date | Mon, 4 Mar 2019 15:05:55 +0800 |
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From: "he, bo" <bo.he@intel.com>
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> --- Changes in v2: - Handle return value independently in resume callback.
drivers/iio/accel/kxcjk-1013.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c index 7096e577b23f..17837e26bcf2 100644 --- a/drivers/iio/accel/kxcjk-1013.c +++ b/drivers/iio/accel/kxcjk-1013.c @@ -1437,6 +1437,11 @@ static int kxcjk1013_resume(struct device *dev) mutex_lock(&data->mutex); ret = kxcjk1013_set_mode(data, OPERATION); + if (ret < 0) { + mutex_unlock(&data->mutex); + return ret; + } + ret = kxcjk1013_set_range(data, data->range); mutex_unlock(&data->mutex); return ret; -- 2.20.1
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