linux-kernel - Re: [PATCH v7 2/9] dt-bindings: touchscreen: Initial commit of wacom,i2c

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Date:   Mon, 12 Jul 2021 11:21:16 -0600
From:   Rob Herring <robh@...nel.org>
To:     Alistair Francis <alistair@...stair23.me>
Cc:     dmitry.torokhov@...il.com, linux-input@...r.kernel.org,
        linux-imx@....com, kernel@...gutronix.de, pinglinux@...il.com,
        tatsunosuke.tobita@...om.com, junkpainting@...il.com,
        ping.cheng@...om.com, linux-kernel@...r.kernel.org,
        alistair23@...il.com, devicetree@...r.kernel.org
Subject: Re: [PATCH v7 2/9] dt-bindings: touchscreen: Initial commit of
 wacom,i2c

On Thu, Jul 08, 2021 at 09:58:46PM +1000, Alistair Francis wrote:
> Signed-off-by: Alistair Francis <alistair@...stair23.me>
> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: devicetree@...r.kernel.org
> ---
>  .../input/touchscreen/wacom,generic.yaml      | 48 +++++++++++++++++++
>  1 file changed, 48 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/input/touchscreen/wacom,generic.yaml
> 
> diff --git a/Documentation/devicetree/bindings/input/touchscreen/wacom,generic.yaml b/Documentation/devicetree/bindings/input/touchscreen/wacom,generic.yaml
> new file mode 100644
> index 000000000000..48c611d63bd8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/touchscreen/wacom,generic.yaml
> @@ -0,0 +1,48 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/input/touchscreen/wacom,generic.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Wacom I2C Controller
> +
> +maintainers:
> +  - Alistair Francis <alistair@...stair23.me>
> +
> +allOf:
> +  - $ref: touchscreen.yaml#

If you use properties from here...

> +
> +properties:
> +  compatible:
> +    const: wacom,i2c-30
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  vdd-supply:
> +    description: Power Supply
> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +additionalProperties: false

then this needs to be 'unevaluatedProperties: false' instead. 

> +
> +examples:
> +  - |
> +    #include "dt-bindings/interrupt-controller/irq.h"
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +        digitiser@9 {
> +                compatible = "wacom,i2c-30";
> +                reg = <0x9>;
> +                interrupt-parent = <&gpio1>;
> +                interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
> +                vdd-supply = <&reg_touch>;
> +        };
> +    };
> -- 
> 2.31.1
> 
>