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From: Rob Herring <robh+dt@kernel.org>
To: Stephen Boyd <swboyd@chromium.org>
Cc: Daniel Campello <campello@chromium.org>,
	Jonathan Cameron <jic23@kernel.org>,
	LKML <devicetree@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Hartmut Knaack <knaack.h@gmx.de>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
	Douglas Anderson <dianders@chromium.org>,
	"open list:IIO SUBSYSTEM AND DRIVERS" <linux-iio@vger.kernel.org>
Subject: Re: [PATCH v3 01/15] dt-bindings: iio: Add bindings for sx9310 sensor
Date: Mon, 3 Aug 2020 20:01:06 -0600
Message-ID: <CAL_JsqLs99Q7o32mqZROQSLuaf-_6vVg_wSVbpMr0u3eD9LVEw@mail.gmail.com> (raw)
In-Reply-To: <159648122347.1360974.1094560524092762187@swboyd.mtv.corp.google.com>

On Mon, Aug 3, 2020 at 1:00 PM Stephen Boyd <swboyd@chromium.org> wrote:
>
> Quoting Jonathan Cameron (2020-08-01 08:06:39)
> > On Fri, 31 Jul 2020 10:48:38 -0600
> > Daniel Campello <campello@chromium.org> wrote:
> > > diff --git a/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml
> > > new file mode 100644
> > > index 00000000000000..5739074d3592fe
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml
> > > @@ -0,0 +1,65 @@
> [...]
> > > +
> > > +  "#io-channel-cells":
> > > +    const: 1
> > > +
> > > +required:
> > > +  - compatible
> > > +  - reg
> > > +  - "#io-channel-cells"
> >
> > Missed this in earlier review (only noticed when I saw whilst santity
> > checking earlier versions.
> >
> > Fairly sure we should only need #io-channel-cells if we have
> > a consumer of a channel somewhere else in DT.  So it's not
> > required as far as I can see.
> >
>
> This is mostly a decision for Rob to make, but I would make it required
> because the device is always an io channel provider. It may be that it
> isn't providing anything in the DT to something else in the DT but it is
> providing this information somewhere so always having to spell that out
> is simple and doesn't hurt.

I agree. If the user is split in a board file or overlay, we don't
want to have to be adding it to the provider at that time.

Rob

  reply index

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-31 16:48 [PATCH v3 00/15] sx9310 iio driver updates Daniel Campello
2020-07-31 16:48 ` [PATCH v3 01/15] dt-bindings: iio: Add bindings for sx9310 sensor Daniel Campello
2020-07-31 22:47   ` Rob Herring
2020-08-01 15:06   ` Jonathan Cameron
2020-08-03 19:00     ` Stephen Boyd
2020-08-04  2:01       ` Rob Herring [this message]
2020-08-06 18:14         ` Jonathan Cameron
2020-08-06 22:12           ` Rob Herring
2020-08-06 23:03             ` Stephen Boyd
2020-07-31 16:48 ` [PATCH v3 02/15] iio: sx9310: Update macros declarations Daniel Campello
2020-08-01 14:47   ` Jonathan Cameron
2020-07-31 16:48 ` [PATCH v3 03/15] iio: sx9310: Fix irq handling Daniel Campello
2020-07-31 18:03   ` Stephen Boyd
2020-07-31 18:35   ` Andy Shevchenko
2020-07-31 16:48 ` [PATCH v3 04/15] iio: sx9310: Remove acpi and of table macros Daniel Campello
2020-07-31 16:48 ` [PATCH v3 05/15] iio: sx9310: Change from .probe to .probe_new Daniel Campello
2020-07-31 16:48 ` [PATCH v3 06/15] iio: sx9310: Fixes various memory handling Daniel Campello
2020-07-31 19:24   ` Andy Shevchenko
2020-08-01 14:52     ` Jonathan Cameron
2020-07-31 16:48 ` [PATCH v3 07/15] iio: sx9310: Use long instead of int for channel bitmaps Daniel Campello
2020-07-31 18:38   ` Stephen Boyd
2020-07-31 16:48 ` [PATCH v3 08/15] iio: sx9310: Use regmap_read_poll_timeout() for compensation Daniel Campello
2020-07-31 18:39   ` Stephen Boyd
2020-07-31 16:48 ` [PATCH v3 09/15] iio: sx9310: Update copyright Daniel Campello
2020-07-31 16:48 ` [PATCH v3 10/15] iio: sx9310: Simplify error return handling Daniel Campello
2020-07-31 16:48 ` [PATCH v3 11/15] iio: sx9310: Use variable to hold &client->dev Daniel Campello
2020-07-31 16:48 ` [PATCH v3 12/15] iio: sx9310: Miscellaneous format fixes Daniel Campello
2020-07-31 16:48 ` [PATCH v3 13/15] iio: sx9310: Drop channel_users[] Daniel Campello
2020-07-31 16:48 ` [PATCH v3 14/15] iio: sx9310: Enable vdd and svdd regulators at probe Daniel Campello
2020-07-31 16:48 ` [PATCH v3 15/15] iio: sx9310: Use irq trigger flags from firmware Daniel Campello
2020-07-31 19:46   ` Andy Shevchenko
2020-08-01 15:01     ` Jonathan Cameron

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