linux-kernel - Re: [PATCH 05/12] dt-bindings: watchdog: qcom-wdt: allow interrupts

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Message-ID: <20230131173311.GA3601934@roeck-us.net>
Date:   Tue, 31 Jan 2023 09:33:11 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Prakash Ranjan <saiprakash.ranjan@...eaurora.org>,
        linux-arm-msm@...r.kernel.org, linux-watchdog@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 05/12] dt-bindings: watchdog: qcom-wdt: allow interrupts

On Mon, Dec 12, 2022 at 05:35:25PM +0100, Krzysztof Kozlowski wrote:
> Both of type of watchdogs described in the binding (the KPSS watchdog
> and APSS WDT timer) have interrupts.  Allow interrupts and describe them
> for KPSS watchdog to fix warnings like:
> 
>   watchdog@...10000: Unevaluated properties are not allowed ('interrupts' was unexpected)
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Reviewed-by: Rob Herring <robh@...nel.org>

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

> ---
>  .../bindings/watchdog/qcom-wdt.yaml           | 24 ++++++++++++++++---
>  1 file changed, 21 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml b/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
> index 1828eaf70b3b..b7fc57f4800e 100644
> --- a/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
> +++ b/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
> @@ -9,9 +9,6 @@ title: Qualcomm Krait Processor Sub-system (KPSS) Watchdog timer
>  maintainers:
>    - Sai Prakash Ranjan <saiprakash.ranjan@...eaurora.org>
>  
> -allOf:
> -  - $ref: watchdog.yaml#
> -
>  properties:
>    compatible:
>      oneOf:
> @@ -51,11 +48,31 @@ properties:
>    clocks:
>      maxItems: 1
>  
> +  interrupts:
> +    minItems: 1
> +    maxItems: 5
> +
>  required:
>    - compatible
>    - reg
>    - clocks
>  
> +allOf:
> +  - $ref: watchdog.yaml#
> +
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            const: qcom,kpss-wdt
> +    then:
> +      properties:
> +        interrupts:
> +          minItems: 1
> +          items:
> +            - description: Bark
> +            - description: Bite
> +
>  unevaluatedProperties: false
>  
>  examples:
> @@ -66,5 +83,6 @@ examples:
>        compatible = "qcom,apss-wdt-sm8150", "qcom,kpss-wdt";
>        reg = <0x17c10000 0x1000>;
>        clocks = <&sleep_clk>;
> +      interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
>        timeout-sec = <10>;
>      };