linux-kernel - Re: [PATCH v3 1/2] dt-bindings: google,cros-ec-keyb: Introduce switches only compatible

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Message-ID: <2280875f-fbd8-0dfd-5a0a-1d7fceb856e4@linaro.org>
Date:   Tue, 3 May 2022 17:42:39 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Stephen Boyd <swboyd@...omium.org>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     linux-kernel@...r.kernel.org, patches@...ts.linux.dev,
        chrome-platform@...ts.linux.dev,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        Benson Leung <bleung@...omium.org>,
        Guenter Roeck <groeck@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        "Joseph S. Barrera III" <joebar@...omium.org>
Subject: Re: [PATCH v3 1/2] dt-bindings: google,cros-ec-keyb: Introduce
 switches only compatible

On 03/05/2022 06:22, Stephen Boyd wrote:
> If the ChromeOS board is a detachable, this cros-ec-keyb device won't
> have a matrix keyboard but it may have some button switches, e.g. volume
> buttons and power buttons. The driver still registers a keyboard though
> and that leads to userspace confusion around where the keyboard is.

(...)

>  
> +if:
> +  properties:
> +    compatible:
> +      contains:
> +        const: google,cros-ec-keyb
> +then:
> +  allOf:
> +    - $ref: "/schemas/input/matrix-keymap.yaml#"
> +  required:
> +    - keypad,num-rows
> +    - keypad,num-columns
> +    - linux,keymap

else:
  properties:
    function-row-phsymap: false
    google,needs-ghost-filter: false

Because these are not valid for the non-matrix-keyboard case, right?

Best regards,
Krzysztof