Re: [PATCH v3] dt-bindings: watchdog: convert faraday,ftwdt010 to yaml

[Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>]

On 10/02/2022 16:54, 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@linaro.org>
> Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
> ---
> Changes since v1:
> - Added myself as maintainer as requested by Linus
> - Added $ref to watchdog.yaml
> - Removed useless quotes
> - Added blank lines between properties
> - Removed timeout-sec as already provided by watchdog.yaml
> 
> Change since v2:
> - rewrite compatible section
> 
>  .../bindings/watchdog/faraday,ftwdt010.txt    | 22 -------
>  .../bindings/watchdog/faraday,ftwdt010.yaml   | 66 +++++++++++++++++++
>  2 files changed, 66 insertions(+), 22 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.txt
>  create mode 100644 Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.txt b/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.txt
> deleted file mode 100644
> index 9ecdb502e605..000000000000
> --- a/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.txt
> +++ /dev/null
> @@ -1,22 +0,0 @@
> -Faraday Technology FTWDT010 watchdog
> -
> -This is an IP part from Faraday Technology found in the Gemini
> -SoCs and others.
> -
> -Required properties:
> -- compatible : must be one of
> -  "faraday,ftwdt010"
> -  "cortina,gemini-watchdog", "faraday,ftwdt010"
> -- reg : shall contain base register location and length
> -- interrupts : shall contain the interrupt for the watchdog
> -
> -Optional properties:
> -- timeout-sec : the default watchdog timeout in seconds.
> -
> -Example:
> -
> -watchdog@41000000 {
> -	compatible = "faraday,ftwdt010";
> -	reg = <0x41000000 0x1000>;
> -	interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
> -};
> diff --git a/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml b/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml
> new file mode 100644
> index 000000000000..e7b90ba41093
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml
> @@ -0,0 +1,66 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$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@linaro.org>
> +  - Corentin Labbe <clabbe@baylibre.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

I think you have indentation warnings.

> +
> +  reg:
> +    maxItems: 1
> +
> +  resets:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    const: PCLK
> +
> +  interrupts:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false

Are you sure your DTSes don't have warnings? You include watchdog.yaml
schema (good) so here should be unevaluatedProperties to accept ones
mentioned there.

Just add "timeout-sec" to example below to see the error.

> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    watchdog@41000000 {
> +      compatible = "faraday,ftwdt010";
> +      reg = <0x41000000 0x1000>;
> +      interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
> +    };
> +  - |
> +    watchdog: watchdog@98500000 {
> +      compatible = "moxa,moxart-watchdog", "faraday,ftwdt010";
> +      reg = <0x98500000 0x10>;
> +      clocks = <&clk_apb>;
> +      clock-names = "PCLK";
> +    };
> +...


Best regards,
Krzysztof