linux-kernel - Re: [PATCH RESEND v2 2/6] dt-bindings: watchdog: Convert Allwinner watchdog to a schema

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Message-ID: <20190830164821.GB7911@roeck-us.net>
Date:   Fri, 30 Aug 2019 09:48:21 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Maxime Ripard <mripard@...nel.org>
Cc:     wim@...ux-watchdog.org, linux-kernel@...r.kernel.org,
        Chen-Yu Tsai <wens@...e.org>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-watchdog@...r.kernel.org
Subject: Re: [PATCH RESEND v2 2/6] dt-bindings: watchdog: Convert Allwinner
 watchdog to a schema

On Wed, Aug 21, 2019 at 04:38:31PM +0200, Maxime Ripard wrote:
> From: Maxime Ripard <maxime.ripard@...tlin.com>
> 
> The Allwinner SoCs have a watchdog supported in Linux, with a matching
> Device Tree binding.
> 
> Now that we have the DT validation in place, let's convert the device tree
> bindings for that controller over to a YAML schemas.
> 
> Reviewed-by: Rob Herring <robh@...nel.org>
> Signed-off-by: Maxime Ripard <maxime.ripard@...tlin.com>
> 
Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
> 
> Changes from v1:
>   - Use generic watchdog schema
>   - Use unevaluatedProperties instead of additionalProperties
> ---
>  .../watchdog/allwinner,sun4i-a10-wdt.yaml     | 48 +++++++++++++++++++
>  .../bindings/watchdog/sunxi-wdt.txt           | 22 ---------
>  2 files changed, 48 insertions(+), 22 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml
>  delete mode 100644 Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml b/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml
> new file mode 100644
> index 000000000000..dc7553f57708
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/allwinner,sun4i-a10-wdt.yaml
> @@ -0,0 +1,48 @@
> +# SPDX-License-Identifier: GPL-2.0
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/allwinner,sun4i-a10-wdt.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Allwinner A10 Watchdog Device Tree Bindings
> +
> +allOf:
> +  - $ref: "watchdog.yaml#"
> +
> +maintainers:
> +  - Chen-Yu Tsai <wens@...e.org>
> +  - Maxime Ripard <maxime.ripard@...tlin.com>
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - const: allwinner,sun4i-a10-wdt
> +      - const: allwinner,sun6i-a31-wdt
> +      - items:
> +          - const: allwinner,sun50i-a64-wdt
> +          - const: allwinner,sun6i-a31-wdt
> +      - items:
> +          - const: allwinner,sun50i-h6-wdt
> +          - const: allwinner,sun6i-a31-wdt
> +      - items:
> +          - const: allwinner,suniv-f1c100s-wdt
> +          - const: allwinner,sun4i-a10-wdt
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    wdt: watchdog@...0c90 {
> +        compatible = "allwinner,sun4i-a10-wdt";
> +        reg = <0x01c20c90 0x10>;
> +        timeout-sec = <10>;
> +    };
> +
> +...
> diff --git a/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt b/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt
> deleted file mode 100644
> index e65198d82a2b..000000000000
> --- a/Documentation/devicetree/bindings/watchdog/sunxi-wdt.txt
> +++ /dev/null
> @@ -1,22 +0,0 @@
> -Allwinner SoCs Watchdog timer
> -
> -Required properties:
> -
> -- compatible : should be one of
> -	"allwinner,sun4i-a10-wdt"
> -	"allwinner,sun6i-a31-wdt"
> -	"allwinner,sun50i-a64-wdt","allwinner,sun6i-a31-wdt"
> -	"allwinner,sun50i-h6-wdt","allwinner,sun6i-a31-wdt"
> -	"allwinner,suniv-f1c100s-wdt", "allwinner,sun4i-a10-wdt"
> -- reg : Specifies base physical address and size of the registers.
> -
> -Optional properties:
> -- timeout-sec : Contains the watchdog timeout in seconds
> -
> -Example:
> -
> -wdt: watchdog@...0c90 {
> -	compatible = "allwinner,sun4i-a10-wdt";
> -	reg = <0x01c20c90 0x10>;
> -	timeout-sec = <10>;
> -};
> -- 
> 2.21.0
>