linux-kernel - Re: [PATCH v4] dt-bindings: watchdog: convert faraday,ftwdt010 to yaml

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Date:   Wed, 9 Mar 2022 15:21:12 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Corentin Labbe <clabbe@...libre.com>
Cc:     krzysztof.kozlowski@...onical.com, robh+dt@...nel.org,
        wim@...ux-watchdog.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH v4] dt-bindings: watchdog: convert faraday,ftwdt010 to
 yaml

On Fri, Feb 11, 2022 at 11:55:28AM +0000, Corentin Labbe wrote:
> Converts watchdog/faraday,ftwdt010.txt to yaml.
> This permits to detect missing properties like clocks and resets or
> compatible like moxa,moxart-watchdog.
> 
> Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
> Signed-off-by: Corentin Labbe <clabbe@...libre.com>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
> Acked-by: Rob Herring <robh@...nel.org>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
> Changes since v1:
> - Added myself as maintainer as requested by Linus
> - Added $ref to watchdog.yaml
> - Removed useless quotes
> - Added blank lines between properties
> - Removed timeout-secs as already provided by watchdog.yaml
> 
> Change since v2:
> - rewrite compatible section
> 
> Changes since v3:
> - Fix indent errors reported by yamllint
> - Change additionalProperties to unevaluatedProperties
> - Added timeout-secs in example
> 
>  .../bindings/watchdog/faraday,ftwdt010.txt    | 22 ------
>  .../bindings/watchdog/faraday,ftwdt010.yaml   | 67 +++++++++++++++++++
>  2 files changed, 67 insertions(+), 22 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.txt
>  create mode 100644 Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.txt b/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.txt
> deleted file mode 100644
> index 9ecdb502e605..000000000000
> --- a/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.txt
> +++ /dev/null
> @@ -1,22 +0,0 @@
> -Faraday Technology FTWDT010 watchdog
> -
> -This is an IP part from Faraday Technology found in the Gemini
> -SoCs and others.
> -
> -Required properties:
> -- compatible : must be one of
> -  "faraday,ftwdt010"
> -  "cortina,gemini-watchdog", "faraday,ftwdt010"
> -- reg : shall contain base register location and length
> -- interrupts : shall contain the interrupt for the watchdog
> -
> -Optional properties:
> -- timeout-sec : the default watchdog timeout in seconds.
> -
> -Example:
> -
> -watchdog@...00000 {
> -	compatible = "faraday,ftwdt010";
> -	reg = <0x41000000 0x1000>;
> -	interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
> -};
> diff --git a/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml b/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml
> new file mode 100644
> index 000000000000..ca9e1beff76b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml
> @@ -0,0 +1,67 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/faraday,ftwdt010.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Faraday Technology FTWDT010 watchdog
> +
> +maintainers:
> +  - Linus Walleij <linus.walleij@...aro.org>
> +  - Corentin Labbe <clabbe@...libre.com>
> +
> +description: |
> +  This is an IP part from Faraday Technology found in the Gemini
> +  SoCs and others.
> +
> +allOf:
> +  - $ref: "watchdog.yaml#"
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - const: faraday,ftwdt010
> +      - items:
> +          - enum:
> +              - cortina,gemini-watchdog
> +              - moxa,moxart-watchdog
> +          - const: faraday,ftwdt010
> +
> +  reg:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    const: PCLK
> +
> +  interrupts:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    watchdog@...00000 {
> +      compatible = "faraday,ftwdt010";
> +      reg = <0x41000000 0x1000>;
> +      interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
> +      timeout-secs = <5>;
> +    };
> +  - |
> +    watchdog: watchdog@...00000 {
> +      compatible = "moxa,moxart-watchdog", "faraday,ftwdt010";
> +      reg = <0x98500000 0x10>;
> +      clocks = <&clk_apb>;
> +      clock-names = "PCLK";
> +    };
> +...