linux-kernel - Re: [PATCH v5 3/3] dt-bindings: cros-ec: Add ChromeOS fingerprint binding

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Message-ID: <CAD=FV=W4k8-Ab+diBic5rbannRr1ZKB=cdHNEOC3Emr0nyzQjQ@mail.gmail.com>
Date:   Thu, 12 May 2022 16:44:51 -0700
From:   Doug Anderson <dianders@...omium.org>
To:     Stephen Boyd <swboyd@...omium.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>, patches@...ts.linux.dev,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        chrome-platform@...ts.linux.dev,
        Guenter Roeck <groeck@...omium.org>,
        Craig Hesling <hesling@...omium.org>,
        Tom Hughes <tomhughes@...omium.org>,
        Alexandru M Stan <amstan@...omium.org>,
        Tzung-Bi Shih <tzungbi@...nel.org>,
        Matthias Kaehlcke <mka@...omium.org>,
        Benson Leung <bleung@...omium.org>,
        Lee Jones <lee.jones@...aro.org>
Subject: Re: [PATCH v5 3/3] dt-bindings: cros-ec: Add ChromeOS fingerprint binding

Hi,

On Wed, May 11, 2022 at 6:39 PM Stephen Boyd <swboyd@...omium.org> wrote:
>
> @@ -176,6 +189,37 @@ allOf:
>          - reg
>          - interrupts
>
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: google,cros-ec-fp
> +    then:
> +      properties:
> +        '#address-cells': false
> +        '#size-cells': false
> +        typec: false
> +        ec-pwm: false
> +        keyboard-controller: false
> +        proximity: false
> +        codecs: false
> +        cbas: false
> +
> +      patternProperties:
> +        "^i2c-tunnel[0-9]*$": false
> +        "^regulator@[0-9]+$": false
> +        "^extcon[0-9]*$": false
> +
> +      required:
> +        - reset-gpios
> +        - boot0-gpios
> +        - vdd-supply
> +    else:
> +      properties:
> +        reset-gpios: false
> +        boot0-gpios: false
> +        vdd-supply: false

Wow, that's a huge pain to have to specify it this way, but I don't
know of any other way to make things happy and still have the
"google,cros-ec-spi" fallback that we decided on having in previous
versions.


>  additionalProperties: false
>
>  examples:
> @@ -231,4 +275,22 @@ examples:
>              compatible = "google,cros-ec-rpmsg";
>          };
>      };
> +
> +  - |

nit: all the other examples have a little "# For <blah>" comment
before them. It's not really necessary, but do we want one here to
match?

In any case, it seems OK to me.

Reviewed-by: Douglas Anderson <dianders@...omium.org>