Re: [PATCH] iio: chemical: atlas-ph-sensor: correct IIO_TEMP values to millicelsius

[Jonathan Cameron <jic23@kernel.org>]

On Sat, 5 Jan 2019 14:44:18 -0800
Matt Ranostay <matt.ranostay@konsulko.com> wrote:

> On Sat, Jan 5, 2019 at 8:34 AM Jonathan Cameron <jic23@kernel.org> wrote:
> >
> > On Sun, 30 Dec 2018 19:07:01 -0800
> > Matt Ranostay <matt.ranostay@konsulko.com> wrote:
> >  
> > > IIO_TEMP scale value for temperature was incorrect and not in millicelsius
> > > as required by the ABI documentation.
> > >
> > > Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>  
> > Ideally would have had a fixes tag.  Looks superficially like this
> > goes back a long way but always nice to confirm how far :)
> >  
> 
> Fixes: 27dec00ecf2d (iio: chemical: add Atlas pH-SM sensor support)
> 
> And yes it goes back a far way..., and guess this happens when one
> doesn't use the libiio for userspace development :).

Applied to the fixes-togreg branch of iio.git and marked for stable.

Thanks for chasing down that tag for me.

Jonathan

> 
> > Anyhow, given we are in the merge window, I'll pick this up once rc1
> > is out and mark it for stable etc.
> >
> > Give me a poke if I seem to have lost it in a week or so.
> >
> > Thanks,
> >
> > Jonathan
> >  
> > > ---
> > >  drivers/iio/chemical/atlas-ph-sensor.c | 7 +++----
> > >  1 file changed, 3 insertions(+), 4 deletions(-)
> > >
> > > diff --git a/drivers/iio/chemical/atlas-ph-sensor.c b/drivers/iio/chemical/atlas-ph-sensor.c
> > > index a406ad31b096..3a20cb5d9bff 100644
> > > --- a/drivers/iio/chemical/atlas-ph-sensor.c
> > > +++ b/drivers/iio/chemical/atlas-ph-sensor.c
> > > @@ -444,9 +444,8 @@ static int atlas_read_raw(struct iio_dev *indio_dev,
> > >       case IIO_CHAN_INFO_SCALE:
> > >               switch (chan->type) {
> > >               case IIO_TEMP:
> > > -                     *val = 1; /* 0.01 */
> > > -                     *val2 = 100;
> > > -                     break;
> > > +                     *val = 10;
> > > +                     return IIO_VAL_INT;
> > >               case IIO_PH:
> > >                       *val = 1; /* 0.001 */
> > >                       *val2 = 1000;
> > > @@ -477,7 +476,7 @@ static int atlas_write_raw(struct iio_dev *indio_dev,
> > >                          int val, int val2, long mask)
> > >  {
> > >       struct atlas_data *data = iio_priv(indio_dev);
> > > -     __be32 reg = cpu_to_be32(val);
> > > +     __be32 reg = cpu_to_be32(val / 10);
> > >
> > >       if (val2 != 0 || val < 0 || val > 20000)
> > >               return -EINVAL;  
> >