On Thu, 21 Feb 2019 03:13:44 +0000 "He, Bo" <bo...@intel.com> wrote:
> 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...@intel.com> > Signed-off-by: Chen, Hu <hu1.c...@intel.com> Please don't do the ret += trick, it obscures the return value which we may want to know if anything goes wrong. Handle each error independently. Thanks, Jonathan > --- > 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;
