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SubjectRe: [PATCH v2] iio: hid-sensor-prox: Fix scale not correct issue
On Sat, Jan 30, 2021 at 07:14:29PM +0000, Jonathan Cameron wrote:
> On Sat, 30 Jan 2021 18:25:30 +0800
> Ye Xiang <xiang.ye@intel.com> wrote:
>
> > Currently, the proxy sensor scale is zero because it just return the
> > exponent directly. To fix this issue, this patch use
> > hid_sensor_format_scale to process the scale first then return the
> > output.
> >
> > Fixes: 39a3a0138f61 ("iio: hid-sensors: Added Proximity Sensor Driver")
> > Signed-off-by: Ye Xiang <xiang.ye@intel.com>
>
> Hi Ye Xiang,
>
> There was a bit of fuzz on this so please take a look at
> my fixes-togreg branch and check it went in cleanly.
Have checked, it's correct.

Thanks
Ye Xiang
>
>
> > ---
> > v2:
> > - Add Fixes tag
> >
> > ---
> > drivers/iio/light/hid-sensor-prox.c | 13 +++++++++++--
> > 1 file changed, 11 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
> > index 4ab285a418d5..4abcfe48f1d4 100644
> > --- a/drivers/iio/light/hid-sensor-prox.c
> > +++ b/drivers/iio/light/hid-sensor-prox.c
> > @@ -23,6 +23,9 @@ struct prox_state {
> > struct hid_sensor_common common_attributes;
> > struct hid_sensor_hub_attribute_info prox_attr;
> > u32 human_presence;
> > + int scale_pre_decml;
> > + int scale_post_decml;
> > + int scale_precision;
> > };
> >
> > static const u32 prox_sensitivity_addresses[] = {
> > @@ -98,8 +101,9 @@ static int prox_read_raw(struct iio_dev *indio_dev,
> > ret_type = IIO_VAL_INT;
> > break;
> > case IIO_CHAN_INFO_SCALE:
> > - *val = prox_state->prox_attr.units;
> > - ret_type = IIO_VAL_INT;
> > + *val = prox_state->scale_pre_decml;
> > + *val2 = prox_state->scale_post_decml;
> > + ret_type = prox_state->scale_precision;
> > break;
> > case IIO_CHAN_INFO_OFFSET:
> > *val = hid_sensor_convert_exponent(
> > @@ -221,6 +225,11 @@ static int prox_parse_report(struct platform_device *pdev,
> > dev_dbg(&pdev->dev, "prox %x:%x\n", st->prox_attr.index,
> > st->prox_attr.report_id);
> >
> > + st->scale_precision = hid_sensor_format_scale(
> > + hsdev->usage,
> > + &st->prox_attr,
> > + &st->scale_pre_decml, &st->scale_post_decml);
> > +
> > return ret;
> > }
> >
>

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