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Date:   Thu, 13 Aug 2020 12:31:28 +0200
From:   Luca Ceresoli <luca@...aceresoli.net>
To:     Rob Herring <robh@...nel.org>, devicetree@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-clk@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-spi@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-remoteproc@...r.kernel.org, linux-hwmon@...r.kernel.org,
        linux-i2c@...r.kernel.org, linux-fbdev@...r.kernel.org,
        linux-iio@...r.kernel.org, linux-input@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-media@...r.kernel.org,
        alsa-devel@...a-project.org, linux-mmc@...r.kernel.org,
        linux-mtd@...ts.infradead.org, netdev@...r.kernel.org,
        linux-rtc@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-usb@...r.kernel.org
Subject: Re: [PATCH] dt-bindings: Whitespace clean-ups in schema files

Hi Rob,

On 12/08/20 22:36, Rob Herring wrote:
> Clean-up incorrect indentation, extra spaces, long lines, and missing
> EOF newline in schema files. Most of the clean-ups are for list
> indentation which should always be 2 spaces more than the preceding
> keyword.
> 
> Found with yamllint (which I plan to integrate into the checks).

[...]

> diff --git a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
> index 3d4e1685cc55..28c6461b9a9a 100644
> --- a/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
> +++ b/Documentation/devicetree/bindings/clock/idt,versaclock5.yaml
> @@ -95,10 +95,10 @@ allOf:
>        # Devices without builtin crystal
>        properties:
>          clock-names:
> -            minItems: 1
> -            maxItems: 2
> -            items:
> -              enum: [ xin, clkin ]
> +          minItems: 1
> +          maxItems: 2
> +          items:
> +            enum: [ xin, clkin ]
>          clocks:
>            minItems: 1
>            maxItems: 2

Thanks for noticing, LGTM.

[...]

> diff --git a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
> index d7dac16a3960..36dc7b56a453 100644
> --- a/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
> +++ b/Documentation/devicetree/bindings/input/touchscreen/touchscreen.yaml
> @@ -33,8 +33,8 @@ properties:
>      $ref: /schemas/types.yaml#/definitions/uint32
>  
>    touchscreen-min-pressure:
> -    description: minimum pressure on the touchscreen to be achieved in order for the
> -                 touchscreen driver to report a touch event.
> +    description: minimum pressure on the touchscreen to be achieved in order
> +      for the touchscreen driver to report a touch event.

Out of personal taste, I find the original layout more pleasant and
readable. This third option is also good, especially for long descriptions:

  description:
    minimum pressure on the touchscreen to be achieved in order for the
    touchscreen driver to report a touch event.

At first glance yamllint seems to support exactly these two by default:

> With indentation: {spaces: 4, check-multi-line-strings: true}
> 
> the following code snippet would PASS:
> 
> Blaise Pascal:
>     Je vous écris une longue lettre parce que
>     je n'ai pas le temps d'en écrire une courte.
> 
> the following code snippet would PASS:
> 
> Blaise Pascal: Je vous écris une longue lettre parce que
>                je n'ai pas le temps d'en écrire une courte.
> 
> the following code snippet would FAIL:
> 
> Blaise Pascal: Je vous écris une longue lettre parce que
>   je n'ai pas le temps d'en écrire une courte.
> 
(https://yamllint.readthedocs.io/en/stable/rules.html#module-yamllint.rules.indentation)


-- 
Luca

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