linux-kernel - Re: [PATCH 09/43] dt-bindings: watchdog: add DT bindings for Cirrus EP93x

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Message-ID: <b39724a8-5e29-411e-9deb-29dd37609372@roeck-us.net>
Date:   Mon, 24 Apr 2023 07:16:14 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Nikita Shubin <nikita.shubin@...uefel.me>
Cc:     Arnd Bergmann <arnd@...nel.org>, Linus Walleij <linusw@...nel.org>,
        Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/43] dt-bindings: watchdog: add DT bindings for Cirrus
 EP93x

On Mon, Apr 24, 2023 at 03:34:25PM +0300, Nikita Shubin wrote:
> This adds device tree bindings for the Cirrus Logic EP93xx
> watchdog block used in these SoCs.
> 
> Signed-off-by: Nikita Shubin <nikita.shubin@...uefel.me>
> ---
>  .../bindings/watchdog/cirrus,ep93xx-wdt.yaml  | 38 +++++++++++++++++++
>  1 file changed, 38 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/watchdog/cirrus,ep93xx-wdt.yaml
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/cirrus,ep93xx-wdt.yaml b/Documentation/devicetree/bindings/watchdog/cirrus,ep93xx-wdt.yaml
> new file mode 100644
> index 000000000000..f39d6b14062d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/cirrus,ep93xx-wdt.yaml
> @@ -0,0 +1,38 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/cirrus,ep93xx-wdt.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Cirrus Logic EP93xx Watchdog Timer
> +
> +maintainers:
> +  - Wim Van Sebroeck <wim@...ux-watchdog.org>
> +
> +description:
> +  Watchdog driver for Cirrus Logic EP93xx family of devices.
> +
> +allOf:
> +  - $ref: "watchdog.yaml#"
> +
> +properties:
> +  compatible:
> +    enum:
> +      - cirrus,ep9301-wdt
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false

The driver does support reading the timeout from devicetree.
It might make sense to mention that here.

> +
> +examples:
> +  - |
> +    wdt0: watchdog@...40000 {
> +        compatible = "cirrus,ep9301-wdt";
> +        reg = <0x80940000 0x08>;
> +    };
> +
> -- 
> 2.39.2
>