linux-kernel - Re: [PATCH v3 4/4] staging: iio: ad7816: Add device tree table.

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Date:   Wed, 14 Nov 2018 22:24:47 +0530
From:   Nishad Kamdar <nishadkamdar@...il.com>
To:     Jonathan Cameron <jic23@...nel.org>
Cc:     "Ardelean, Alexandru" <alexandru.Ardelean@...log.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Hartmut Knaack <knaack.h@....de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-iio@...r.kernel.org, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/4] staging: iio: ad7816: Add device tree table.

On Sun, Nov 11, 2018 at 12:38:02PM +0000, Jonathan Cameron wrote:
> On Fri, 9 Nov 2018 08:11:57 +0000
> "Ardelean, Alexandru" <alexandru.Ardelean@...log.com> wrote:
> 
> > On Fri, 2018-11-09 at 13:08 +0530, Nishad Kamdar wrote:
> > > Add device tree table for matching vendor ID.  
> > 
> > One comment inline for this.
> > 
> > Thanks
> > Alex
> > 
> > > 
> > > Signed-off-by: Nishad Kamdar <nishadkamdar@...il.com>
> > > ---
> > >  drivers/staging/iio/adc/ad7816.c | 7 +++++++
> > >  1 file changed, 7 insertions(+)
> > > 
> > > diff --git a/drivers/staging/iio/adc/ad7816.c
> > > b/drivers/staging/iio/adc/ad7816.c
> > > index a2fead85cd46..b8a9149fbac1 100644
> > > --- a/drivers/staging/iio/adc/ad7816.c
> > > +++ b/drivers/staging/iio/adc/ad7816.c
> > > @@ -422,6 +422,12 @@ static int ad7816_probe(struct spi_device *spi_dev)
> > >  	return 0;
> > >  }
> > >  
> > > +static const struct of_device_id ad7816_of_match[] = {
> > > +	{ .compatible = "adi,ad7816", },  
> > 
> > I think you also need to add:
> > +	{ .compatible = "adi,ad7817", },
> > +	{ .compatible = "adi,ad7818", },
> > 
> 
> Yes, please add all parts to the dt binding.
> Particularly as they are functionally different in this case!
> 
> Please send a v4 for just this patch as the rest have now been
> applied.
> 
> Thanks,
> 
> 
> Jonathan
> 
> > > +	{ }
> > > +};
> > > +MODULE_DEVICE_TABLE(of, ad7816_of_match);
> > > +
> > >  static const struct spi_device_id ad7816_id[] = {
> > >  	{ "ad7816", ID_AD7816 },
> > >  	{ "ad7817", ID_AD7817 },
> > > @@ -434,6 +440,7 @@ MODULE_DEVICE_TABLE(spi, ad7816_id);
> > >  static struct spi_driver ad7816_driver = {
> > >  	.driver = {
> > >  		.name = "ad7816",
> > > +		.of_match_table = of_match_ptr(ad7816_of_match),
> > >  	},
> > >  	.probe = ad7816_probe,
> > >  	.id_table = ad7816_id,  
>

Ok. I'll do that.

Thanks for the reivew.

regards,
Nishad