On Mon, Nov 19, 2018 at 6:09 AM Ardelean, Alexandru
<alexandru.ardel...@analog.com> wrote:
>
> On Sun, 2018-11-18 at 02:25 -0200, Matheus Tavares wrote:
> > This patch adds device tree support to ad2s90 with standard
> > device tree id table.
> >
>
> Hey,
>
> Comment inline
>
> > Signed-off-by: Matheus Tavares <matheus.bernard...@usp.br>
> > ---
> > Changes in v2:
> > - none
> >
> > drivers/staging/iio/resolver/ad2s90.c | 7 +++++++
> > 1 file changed, 7 insertions(+)
> >
> > diff --git a/drivers/staging/iio/resolver/ad2s90.c
> > b/drivers/staging/iio/resolver/ad2s90.c
> > index 3e257ac46f7a..6ffbac66b837 100644
> > --- a/drivers/staging/iio/resolver/ad2s90.c
> > +++ b/drivers/staging/iio/resolver/ad2s90.c
> > @@ -107,6 +107,12 @@ static int ad2s90_probe(struct spi_device *spi)
> > return devm_iio_device_register(indio_dev->dev.parent, indio_dev);
> > }
> >
> > +static const struct of_device_id ad2s90_of_match[] = {
> > + { .compatible = "adi,ad2s90", },
> > + {}
> > +};
> > +MODULE_DEVICE_TABLE(of, ad2s90_of_match);
> > +
> > static const struct spi_device_id ad2s90_id[] = {
> > { "ad2s90" },
> > {}
> > @@ -116,6 +122,7 @@ MODULE_DEVICE_TABLE(spi, ad2s90_id);
> > static struct spi_driver ad2s90_driver = {
> > .driver = {
> > .name = "ad2s90",
> > + .of_match_table = of_match_ptr(ad2s90_of_match),
>
> I think you need to remove the of_match_ptr().
> There was a comment from Jonathan on another thread about this.
> See:
> https://patchwork.kernel.org/patch/10682963/
>
Hm, got it, thanks!
I don't understand much about ACPI yet, and I had understood the
"of_match_ptr" as a guard. Could someone point me in which cases it
should be used? Or is it obsolete?
Matheus
> So,
> + .of_match_table = of_match_ptr(ad2s90_of_match),
>
> becomes
> > + .of_match_table = ad2s90_of_match,
>
> > },
> > .probe = ad2s90_probe,
> > .id_table = ad2s90_id,
>
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