# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/watchdog/nuvoton,npcm750-wdt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Nuvoton NPCM Watchdog

maintainers:
  - Joel Stanley <joel@jms.id.au>

description:
  Nuvoton NPCM timer module provides five 24-bit timer counters, and a watchdog.
  The watchdog supports a pre-timeout interrupt that fires 10ms before the
  expiry.

allOf:
  - $ref: watchdog.yaml#

properties:
  compatible:
    oneOf:
      - enum:
          - nuvoton,npcm750-wdt
          - nuvoton,wpcm450-wdt
      - items:
          - enum:
              - nuvoton,npcm845-wdt
          - const: nuvoton,npcm750-wdt

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    maxItems: 1

  clock-frequency:
    description: Frequency in Hz of the clock that drives the NPCM timer.

required:
  - compatible
  - reg
  - interrupts

unevaluatedProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>
    #include <dt-bindings/clock/nuvoton,npcm7xx-clock.h>
 
    watchdog@f000801c {
        compatible = "nuvoton,npcm750-wdt";
        interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
        reg = <0xf000801c 0x4>;
        clocks = <&clk NPCM7XX_CLK_TIMER>;
    };