linux-kernel - Re: [PATCH 2/3] dt-bindings: iio: Add cros ec proximity yaml doc

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Message-ID: <161160081370.76967.12690026482235521779@swboyd.mtv.corp.google.com>
Date:   Mon, 25 Jan 2021 10:53:33 -0800
From:   Stephen Boyd <swboyd@...omium.org>
To:     Jonathan Cameron <jic23@...nel.org>, Rob Herring <robh@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Benson Leung <bleung@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Gwendal Grignou <gwendal@...omium.org>,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 2/3] dt-bindings: iio: Add cros ec proximity yaml doc

Quoting Rob Herring (2021-01-25 07:02:03)
> On Sun, Jan 24, 2021 at 05:27:56PM +0000, Jonathan Cameron wrote:
> > On Fri, 22 Jan 2021 14:54:42 -0800
> > Stephen Boyd <swboyd@...omium.org> wrote:
> > 
> > > Some cros ECs support a front proximity MKBP event via
> > > 'EC_MKBP_FRONT_PROXIMITY'. Add a DT binding to document this feature via
> > > a node that is a child of the main cros_ec device node. Devices that
> > > have this ability will describe this in firmware.
> > > 
> > > Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
> > > Cc: Benson Leung <bleung@...omium.org>
> > > Cc: Guenter Roeck <groeck@...omium.org>
> > > Cc: Douglas Anderson <dianders@...omium.org>
> > > Cc: Gwendal Grignou <gwendal@...omium.org>
> > > Cc: <devicetree@...r.kernel.org>
> > > Cc: Rob Herring <robh+dt@...nel.org>
> > > Signed-off-by: Stephen Boyd <swboyd@...omium.org>
> > > ---
> > >  .../proximity/google,cros-ec-proximity.yaml   | 37 +++++++++++++++++++
> > >  1 file changed, 37 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> > > 
> > > diff --git a/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> > > new file mode 100644
> > > index 000000000000..c0a34bdfe4fd
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-proximity.yaml
> > > @@ -0,0 +1,37 @@
> > > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +
> > > +$id: http://devicetree.org/schemas/iio/proximity/google,cros-ec-proximity.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: ChromeOS EC MKBP Proximity Sensor
> > > +
> > > +maintainers:
> > > +  - Stephen Boyd <swboyd@...omium.org>
> > > +  - Benson Leung <bleung@...omium.org>
> > > +  - Enric Balletbo i Serra <enric.balletbo@...labora.com>
> > > +
> > > +description: |
> > > +  Google's ChromeOS EC sometimes has the ability to detect user proximity.
> > > +  This is implemented on the EC as near/far logic and exposed to the OS
> > > +  via an MKBP switch bit.
> > > +
> > > +properties:
> > > +  compatible:
> > > +    const: google,cros-ec-proximity
> > > +
> > > +  label:
> > > +    description: Name for proximity sensor
> > > +
> > > +required:
> > > +  - compatible
> > > +
> > > +unevaluatedProperties: false
> 
> additionalProperties: false
> 
> > > +
> > > +examples:
> > > +  - |
> > > +    proximity {
> > 
> > Can we at least have the example making it clear this is a child of the
> > cros_ec device?
> 
> Move this to the core Cros EC binding. The core binding needs to define 
> 'proximity' and reference this binding ($ref).

Will do.