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SubjectRe: [PATCH v4 2/3] dt-bindings: iio: Add cros ec proximity yaml doc
On Tue, Feb 02, 2021 at 10:44:33AM -0800, Stephen Boyd 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@gmail.com>
> Cc: Benson Leung <bleung@chromium.org>
> Cc: Guenter Roeck <groeck@chromium.org>
> Cc: Douglas Anderson <dianders@chromium.org>
> Cc: Gwendal Grignou <gwendal@chromium.org>
> Cc: <devicetree@vger.kernel.org>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com>
> Signed-off-by: Stephen Boyd <swboyd@chromium.org>
> ---
> .../google,cros-ec-mkbp-proximity.yaml | 46 +++++++++++++++++++
> .../bindings/mfd/google,cros-ec.yaml | 3 ++
> 2 files changed, 49 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/iio/proximity/google,cros-ec-mkbp-proximity.yaml
>
> diff --git a/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-mkbp-proximity.yaml b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-mkbp-proximity.yaml
> new file mode 100644
> index 000000000000..d82b929af445
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/iio/proximity/google,cros-ec-mkbp-proximity.yaml
> @@ -0,0 +1,46 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +
> +$id: http://devicetree.org/schemas/iio/proximity/google,cros-ec-mkbp-proximity.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: ChromeOS EC MKBP Proximity Sensor
> +
> +maintainers:
> + - Stephen Boyd <swboyd@chromium.org>
> + - Benson Leung <bleung@chromium.org>
> + - Enric Balletbo i Serra <enric.balletbo@collabora.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-mkbp-proximity
> +
> + label:
> + description: Name for proximity sensor
> +
> +required:
> + - compatible
> +
> +unevaluatedProperties: false
> +additionalProperties: false

Only need one. In this case 'additionalProperties'.

> +
> +examples:
> + - |
> + spi {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + ec@0 {
> + compatible = "google,cros-ec-spi";
> + reg = <0>;
> + proximity {
> + compatible = "google,cros-ec-mkbp-proximity";
> + label = "proximity-wifi-lte";
> + };

The complete examples I prefer is 1 example for the whole MFD in the MFD
schema and no example here.

> + };
> + };
> diff --git a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
> index 76bf16ee27ec..479a9f15de32 100644
> --- a/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
> +++ b/Documentation/devicetree/bindings/mfd/google,cros-ec.yaml
> @@ -94,6 +94,9 @@ properties:
> keyboard-controller:
> $ref: "/schemas/input/google,cros-ec-keyb.yaml#"
>
> + proximity:
> + $ref: "/schemas/iio/proximity/google,cros-ec-mkbp-proximity.yaml#"
> +
> codecs:
> type: object
> additionalProperties: false
> --
> https://chromeos.dev
>

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