linux-kernel - Re: [PATCH v7 2/2] dt-bindings: input: Goodix SPI HID Touchscreen

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Message-ID: <CAL_Jsq+QfTtRj_JCqXzktQ49H8VUnztVuaBjvvkg3fwEHniUHw@mail.gmail.com>
Date: Fri, 6 Sep 2024 15:28:45 -0500
From: Rob Herring <robh@...nel.org>
To: Charles Wang <charles.goodix@...il.com>
Cc: dmitry.torokhov@...il.com, dianders@...omium.org, dan.carpenter@...aro.org, 
	conor@...nel.org, krzk+dt@...nel.org, jikos@...nel.org, bentiss@...nel.org, 
	hbarnor@...omium.org, linux-input@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Conor Dooley <conor.dooley@...rochip.com>
Subject: Re: [PATCH v7 2/2] dt-bindings: input: Goodix SPI HID Touchscreen

On Tue, Aug 13, 2024 at 9:45 PM Charles Wang <charles.goodix@...il.com> wrote:
>
> The Goodix GT7986U touch controller report touch data according to the
> HID protocol through the SPI bus. However, it is incompatible with
> Microsoft's HID-over-SPI protocol.
>
> Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
> Signed-off-by: Charles Wang <charles.goodix@...il.com>
> ---
>  .../bindings/input/goodix,gt7986u.yaml        | 71 +++++++++++++++++++
>  1 file changed, 71 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/input/goodix,gt7986u.yaml
>
> diff --git a/Documentation/devicetree/bindings/input/goodix,gt7986u.yaml b/Documentation/devicetree/bindings/input/goodix,gt7986u.yaml
> new file mode 100644
> index 000000000..a7d42a5d6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/goodix,gt7986u.yaml
> @@ -0,0 +1,71 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/input/goodix,gt7986u.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: GOODIX GT7986U SPI HID Touchscreen
> +
> +maintainers:
> +  - Charles Wang <charles.goodix@...il.com>
> +
> +description: Supports the Goodix GT7986U touchscreen.
> +  This touch controller reports data packaged according to the HID protocol,
> +  but is incompatible with Microsoft's HID-over-SPI protocol.
> +
> +allOf:
> +  - $ref: /schemas/spi/spi-peripheral-props.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - goodix,gt7986u

This is already documented in goodix,gt7375p.yaml. Now linux-next has warnings:

/builds/robherring/linux-dt/Documentation/devicetree/bindings/input/goodix,gt7986u.example.dtb:
touchscreen@0: compatible: 'oneOf' conditional failed, one must be
fixed:
        ['goodix,gt7986u'] is too short
        'goodix,gt7375p' was expected
        from schema $id:
http://devicetree.org/schemas/input/goodix,gt7375p.yaml#
/builds/robherring/linux-dt/Documentation/devicetree/bindings/input/goodix,gt7986u.example.dtb:
touchscreen@0: reg:0:0: 0 is not one of [93, 20]
        from schema $id:
http://devicetree.org/schemas/input/goodix,gt7375p.yaml#
/builds/robherring/linux-dt/Documentation/devicetree/bindings/input/goodix,gt7986u.example.dtb:
touchscreen@0: 'vdd-supply' is a required property
        from schema $id:
http://devicetree.org/schemas/input/goodix,gt7375p.yaml#
/builds/robherring/linux-dt/Documentation/devicetree/bindings/input/goodix,gt7986u.example.dtb:
touchscreen@0: 'goodix,hid-report-addr', 'spi-max-frequency' do not
match any of the regexes: 'pinctrl-[0-9]+'
        from schema $id:
http://devicetree.org/schemas/input/goodix,gt7375p.yaml#

Please sort this out and send a fix.

Rob