Commit 2de4de20 authored by Maxime Ripard's avatar Maxime Ripard Committed by Wim Van Sebroeck
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dt-bindings: watchdog: Convert Allwinner watchdog to a schema



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.

Signed-off-by: default avatarMaxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20190821143835.7294-2-mripard@kernel.org


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent f9eaba57
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# 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@csie.org>
  - Maxime Ripard <maxime.ripard@bootlin.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@1c20c90 {
        compatible = "allwinner,sun4i-a10-wdt";
        reg = <0x01c20c90 0x10>;
        timeout-sec = <10>;
    };

...
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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@1c20c90 {
	compatible = "allwinner,sun4i-a10-wdt";
	reg = <0x01c20c90 0x10>;
	timeout-sec = <10>;
};