linux-kernel - Re: [PATCH v3] dt-bindings: watchdog: davinci-wdt: convert txt to yaml

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Message-ID: <20231027-antennae-aftermath-b11ede90737f@spud>
Date:   Fri, 27 Oct 2023 15:14:31 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Nik Bune <n2h9z4@...il.com>
Cc:     wim@...ux-watchdog.org, linux@...ck-us.net, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        skhan@...uxfoundation.org, afd@...com,
        linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3] dt-bindings: watchdog: davinci-wdt: convert txt to
 yaml

Hey,

On Thu, Oct 26, 2023 at 09:53:13PM +0200, Nik Bune wrote:
> Convert txt file to yaml.
> Add maintainers list.
> Mark clock as required property, by reviewer's suggestion.
> Add power-domains as optional property, by reviewer's suggestion. 
> 
> Signed-off-by: Nik Bune <n2h9z4@...il.com>
> ---
> 
> Changes in 3 (according to review comments):
> - Added Andrew Davis <afd@...com> into maintainers list.
> - Added power-domains property.
> 
> v2 patch: https://lore.kernel.org/all/20231024195839.49607-1-n2h9z4@gmail.com/
> 
> 
>  .../bindings/watchdog/davinci-wdt.txt         | 24 ---------
>  .../bindings/watchdog/ti,davinci-wdt.yaml     | 52 +++++++++++++++++++
>  2 files changed, 52 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..17c824f2fc7d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/ti,davinci-wdt.yaml
> @@ -0,0 +1,52 @@
> +# 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:
> +  - Andrew Davis <afd@...com>
> +
> +allOf:
> +  - $ref: watchdog.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - ti,davinci-wdt
> +      - ti,keystone-wdt
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  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.

I think you missed Rob's comment in reply to Andrew, about constraining
and ordering the power-domains:
https://lore.kernel.org/all/20231026203037.GA327324-robh@kernel.org/

Cheers,
Conor.

> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    watchdog@...0000 {
> +        compatible = "ti,davinci-wdt";
> +        reg = <0x02320000 0x80>;
> +        timeout-sec = <30>;
> +        clocks = <&clkwdtimer0>;
> +    };
> -- 
> 2.34.1
> 

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