linux-kernel - Re: [PATCH 1/3] dt-bindings: watchdog: xlnx,versal-wwdt: Add binding documentation for xilinx window watchdog device

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 30 Sep 2022 12:31:40 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Srinivas Neeli <srinivas.neeli@....com>, wim@...ux-watchdog.org,
        linux@...ck-us.net, shubhrajyoti.datta@....com,
        michal.simek@....com, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org
Cc:     linux-kernel@...r.kernel.org, linux-watchdog@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        git@....com
Subject: Re: [PATCH 1/3] dt-bindings: watchdog: xlnx,versal-wwdt: Add binding
 documentation for xilinx window watchdog device

On 27/09/2022 13:02, Srinivas Neeli wrote:
> Add documentation for the binding of window watchdog device.
> 
> Signed-off-by: Srinivas Neeli <srinivas.neeli@....com>
> ---
>  .../bindings/watchdog/xlnx,versal-wwdt.yaml   | 49 +++++++++++++++++++
>  1 file changed, 49 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/watchdog/xlnx,versal-wwdt.yaml
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/xlnx,versal-wwdt.yaml b/Documentation/devicetree/bindings/watchdog/xlnx,versal-wwdt.yaml
> new file mode 100644
> index 000000000000..986455efa6f4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/xlnx,versal-wwdt.yaml
> @@ -0,0 +1,49 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/xlnx,versal-wwdt.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Xilinx Versal window watchdog timer controller
> +
> +maintainers:
> +  - Neeli Srinivas <srinivas.neeli@....com>
> +
> +description:
> +  Versal watchdog driver uses window watchdog mode. Window watchdog
> +  timer(WWDT) contains closed(first) and open(second) window with
> +  32 bit width. Write to the watchdog timer within predefined window
> +  periods of time. This means a period that is not too soon and a
> +  period that is not too late. The WWDT has to be restarted within
> +  the open window time. If software tries to restart WWDT outside of
> +  the open window time period, it generates a reset.
> +

Missing ref to watchdog.

> +properties:
> +  compatible:
> +    enum:
> +      - xlnx,versal-wwdt-1.0
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  timeout-sec: true

This can be dropped.

> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +
> +additionalProperties: false

and this then can be unevaluatedProperties:false

> +
> +examples:
> +  - |
> +        watchdog@...d0000 {

Use 4 spaces for example indentation.

> +           compatible = "xlnx,versal-wwdt-1.0";
> +           reg = <0xfd4d0000 0x10000>;
> +           clocks = <&clock25>;
> +           timeout-sec = <30>;
> +        };
> +...

Best regards,
Krzysztof