linux-kernel - Re: [PATCH v4 3/3] dt-bindings: touchscreen: Add binding for Novatek NT36xxx series driver

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Message-ID: <20201013144552.GA3477694@bogus>
Date:   Tue, 13 Oct 2020 09:45:52 -0500
From:   Rob Herring <robh@...nel.org>
To:     kholk11@...il.com
Cc:     dmitry.torokhov@...il.com, rydberg@...math.org, priv.luk@...il.com,
        linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
        marijns95@...il.com, konradybcio@...il.com,
        martin.botka1@...il.com, phone-devel@...r.kernel.org,
        devicetree@...r.kernel.org, krzk@...nel.org
Subject: Re: [PATCH v4 3/3] dt-bindings: touchscreen: Add binding for Novatek
 NT36xxx series driver

On Thu, Oct 08, 2020 at 08:15:14PM +0200, kholk11@...il.com wrote:
> From: AngeloGioacchino Del Regno <kholk11@...il.com>
> 
> Add binding for the Novatek NT36xxx series touchscreen driver.
> 
> Signed-off-by: AngeloGioacchino Del Regno <kholk11@...il.com>
> ---
>  .../input/touchscreen/novatek,nt36xxx.yaml    | 59 +++++++++++++++++++
>  1 file changed, 59 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/input/touchscreen/novatek,nt36xxx.yaml
> 
> diff --git a/Documentation/devicetree/bindings/input/touchscreen/novatek,nt36xxx.yaml b/Documentation/devicetree/bindings/input/touchscreen/novatek,nt36xxx.yaml
> new file mode 100644
> index 000000000000..e747cacae036
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/touchscreen/novatek,nt36xxx.yaml
> @@ -0,0 +1,59 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/input/touchscreen/novatek,nt36xxx.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Novatek NT36xxx series touchscreen controller Bindings
> +
> +maintainers:
> +  - Dmitry Torokhov <dmitry.torokhov@...il.com>

This should be an owner for this device, not subsystem maintainers.

> +
> +allOf:
> +  - $ref: touchscreen.yaml#
> +
> +properties:
> +  compatible:
> +    const: novatek,nt36xxx
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  reset-gpio:

reset-gpios

> +    maxItems: 1
> +
> +  vdd-supply:
> +    description: Power supply regulator for VDD pin
> +
> +  vio-supply:
> +    description: Power supply regulator on VDD-IO pin
> +
> +additionalProperties: false

This won't work with the ref to touchscreen.yaml. Use 
'unevaluatedProperties: false' instead.

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    i2c {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +
> +      touchscreen@62 {
> +        compatible = "novatek,nt36xxx";
> +        reg = <0x62>;
> +        interrupt-parent = <&tlmm>;
> +        interrupts = <45 IRQ_TYPE_EDGE_RISING>;
> +        reset-gpio = <&tlmm 102 GPIO_ACTIVE_HIGH>;
> +      };
> +    };
> +
> +...
> -- 
> 2.28.0
>