Commit 9e965286 authored by Sven Peter's avatar Sven Peter Committed by Hector Martin
Browse files

dt-bindings: watchdog: Add Apple Watchdog



Apple SoCs come with a simple embedded watchdog. This watchdog is also
required in order to reset the SoC.

Reviewed-by: default avatarMark Kettenis <kettenis@openbsd.org>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarSven Peter <sven@svenpeter.dev>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarHector Martin <marcan@marcan.st>
parent 72baffdd
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/watchdog/apple,wdt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Apple SoC Watchdog

allOf:
  - $ref: "watchdog.yaml#"

maintainers:
  - Sven Peter <sven@svenpeter.dev>

properties:
  compatible:
    items:
      - enum:
          - apple,t8103-wdt
          - apple,t6000-wdt
      - const: apple,wdt

  reg:
    maxItems: 1

  clocks:
    maxItems: 1

  interrupts:
    maxItems: 1

required:
  - compatible
  - reg
  - clocks
  - interrupts

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/apple-aic.h>
    #include <dt-bindings/interrupt-controller/irq.h>

    wdt: watchdog@50000000 {
        compatible = "apple,t8103-wdt", "apple,wdt";
        reg = <0x50000000 0x4000>;
        clocks = <&clk>;
        interrupts = <AIC_IRQ 123 IRQ_TYPE_LEVEL_HIGH>;
    };

...
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@@ -1750,6 +1750,7 @@ F: Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
F:	Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml
F:	Documentation/devicetree/bindings/pci/apple,pcie.yaml
F:	Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
F:	Documentation/devicetree/bindings/watchdog/apple,wdt.yaml
F:	arch/arm64/boot/dts/apple/
F:	drivers/i2c/busses/i2c-pasemi-core.c
F:	drivers/i2c/busses/i2c-pasemi-platform.c