linux-kernel - Re: [PATCH 01/15] dt-bindings: iio: Add bindings for sx9310 sensor

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Date:   Tue, 28 Jul 2020 15:06:41 -0700
From:   Stephen Boyd <swboyd@...omium.org>
To:     Daniel Campello <campello@...omium.org>,
        LKML <devicetree@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Daniel Campello <campello@...omium.org>,
        Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Rob Herring <robh+dt@...nel.org>,
        Douglas Anderson <dianders@...omium.org>,
        linux-iio@...r.kernel.org
Subject: Re: [PATCH 01/15] dt-bindings: iio: Add bindings for sx9310 sensor

Quoting Daniel Campello (2020-07-28 08:12:44)
> 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..ba734ee868c77f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/proximity/semtech,sx9310.yaml
> @@ -0,0 +1,60 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iio/proximity/semtech,sx9310.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Semtech's SX9310 capacitive proximity sensor
> +
> +maintainers:
> +  - Daniel Campello <campello@...omium.org>
> +
> +description: |
> +  Semtech's SX9310/SX9311 capacitive proximity/button solution.
> +
> +  Specifications about the devices can be found at:
> +  https://www.semtech.com/products/smart-sensing/sar-sensors/sx9310
> +
> +properties:
> +  compatible:
> +    enum:
> +      - semtech,sx9310
> +      - semtech,sx9311
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    description:
> +      The sole interrupt generated by the device used to announce the
> +      preceding reading request has finished and that data is
> +      available or that a close/far proximity event has happened.
> +    maxItems: 1
> +
> +  vdd-supply:
> +    description: Main power supply
> +
> +  svdd-supply:
> +    description: Host interface power supply

I think we need to add #io-channel-cells = <1> here as a required
property.

   "#io-channel-cells":
       const: 1

> +
> +required:
> +  - compatible
> +  - reg

And 

  - "#io-channel-cells"

> +
> +additionalProperties: false
> +