linux-kernel - Re: [PATCH v2] dt-bindings: watchdog: davinci-wdt: convert txt to yaml

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Date:   Tue, 24 Oct 2023 15:55:23 -0500
From:   Andrew Davis <afd@...com>
To:     Nik Bune <n2h9z4@...il.com>, <wim@...ux-watchdog.org>,
        <linux@...ck-us.net>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <skhan@...uxfoundation.org>, <m-karicheri2@...com>,
        <ivan.khoronzhuk@...com>
CC:     <linux-watchdog@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] dt-bindings: watchdog: davinci-wdt: convert txt to
 yaml

On 10/24/23 2:58 PM, Nik Bune wrote:
> Convert txt file to yaml.
> Add maintainers list, based on the git history.
> Mark clock as required property, by reviewer's suggestion.
> 
> Signed-off-by: Nik Bune <n2h9z4@...il.com>
> ---
> 
> Changes in v2 (according to review comments):
> - Added clocks to the list of required properties.
> - Updated clocks property to have only maxItems without $ref and description.
> - Removed timeout-sec explicit definition, as it is defined in watchdog.yaml.
> - Updated maintainers list from the git history.
> 
> v1 patch: https://lore.kernel.org/all/20231021171323.113208-1-n2h9z4@gmail.com/
> 
>   .../bindings/watchdog/davinci-wdt.txt         | 24 ----------
>   .../bindings/watchdog/ti,davinci-wdt.yaml     | 47 +++++++++++++++++++
>   2 files changed, 47 insertions(+), 24 deletions(-)
>   delete mode 100644 Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
>   create mode 100644 Documentation/devicetree/bindings/watchdog/ti,davinci-wdt.yaml
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt b/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
> deleted file mode 100644
> index aa10b8ec36e2..000000000000
> --- a/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
> +++ /dev/null
> @@ -1,24 +0,0 @@
> -Texas Instruments DaVinci/Keystone Watchdog Timer (WDT) Controller
> -
> -Required properties:
> -- compatible : Should be "ti,davinci-wdt", "ti,keystone-wdt"
> -- reg : Should contain WDT registers location and length
> -
> -Optional properties:
> -- timeout-sec : Contains the watchdog timeout in seconds
> -- clocks : the clock feeding the watchdog timer.
> -	   Needed if platform uses clocks.
> -	   See clock-bindings.txt
> -
> -Documentation:
> -Davinci DM646x - https://www.ti.com/lit/ug/spruer5b/spruer5b.pdf
> -Keystone - https://www.ti.com/lit/ug/sprugv5a/sprugv5a.pdf
> -
> -Examples:
> -
> -wdt: wdt@...0000 {
> -	compatible = "ti,davinci-wdt";
> -	reg = <0x02320000 0x80>;
> -	timeout-sec = <30>;
> -	clocks = <&clkwdtimer0>;
> -};
> diff --git a/Documentation/devicetree/bindings/watchdog/ti,davinci-wdt.yaml b/Documentation/devicetree/bindings/watchdog/ti,davinci-wdt.yaml
> new file mode 100644
> index 000000000000..4747be98b7d9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/ti,davinci-wdt.yaml
> @@ -0,0 +1,47 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/ti,davinci-wdt.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Texas Instruments DaVinci/Keystone Watchdog Timer (WDT) Controller
> +
> +description: |
> +  Documentation:
> +  Davinci DM646x - https://www.ti.com/lit/ug/spruer5b/spruer5b.pdf
> +  Keystone - https://www.ti.com/lit/ug/sprugv5a/sprugv5a
> +
> +maintainers:
> +  - Murali Karicheri <m-karicheri2@...com>
> +  - Ivan Khoronzhuk <ivan.khoronzhuk@...com>

Neither of these folks will be available for this, you can use me if
you want an email that won't bounce for now.

> +
> +allOf:
> +  - $ref: watchdog.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - ti,davinci-wdt
> +      - ti,keystone-wdt
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1

We also have some instances with an optional power-domains prop.

   power-domains:
     description: A phandle and PM domain specifier as defined by bindings of
       the power controller specified by phandle. See
       Documentation/devicetree/bindings/power/power-domain.yaml for details.

Andrew

> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    watchdog@...0000 {
> +        compatible = "ti,davinci-wdt";
> +        reg = <0x02320000 0x80>;
> +        timeout-sec = <30>;
> +        clocks = <&clkwdtimer0>;
> +    };