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linux/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
Daniel Golle a4d2116ee1 dt-bindings: watchdog: mediatek,mtk-wdt: add MT7988 watchdog and toprgu
Add binding description for mediatek,mt7988-wdt.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/6478f8d2af59736d23a96b52891bb541de33870d.1700504385.git.daniel@makrotopia.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2023-12-17 16:14:23 +01:00

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2.2 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/watchdog/mediatek,mtk-wdt.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek SoCs Watchdog timer
maintainers:
- Matthias Brugger <matthias.bgg@gmail.com>
description:
The watchdog supports a pre-timeout interrupt that fires
timeout-sec/2 before the expiry.
allOf:
- $ref: watchdog.yaml#
properties:
compatible:
oneOf:
- enum:
- mediatek,mt2712-wdt
- mediatek,mt6589-wdt
- mediatek,mt6735-wdt
- mediatek,mt6795-wdt
- mediatek,mt7986-wdt
- mediatek,mt7988-wdt
- mediatek,mt8183-wdt
- mediatek,mt8186-wdt
- mediatek,mt8188-wdt
- mediatek,mt8192-wdt
- mediatek,mt8195-wdt
- items:
- enum:
- mediatek,mt2701-wdt
- mediatek,mt6582-wdt
- mediatek,mt6797-wdt
- mediatek,mt7622-wdt
- mediatek,mt7623-wdt
- mediatek,mt7629-wdt
- mediatek,mt8173-wdt
- mediatek,mt8365-wdt
- mediatek,mt8516-wdt
- const: mediatek,mt6589-wdt
reg:
maxItems: 1
interrupts:
items:
- description: Watchdog pre-timeout (bark) interrupt
mediatek,disable-extrst:
description: Disable sending output reset signal
type: boolean
mediatek,reset-by-toprgu:
description: The Top Reset Generation Unit (TOPRGU) generates reset signals
and distributes them to each IP. If present, the watchdog timer will be
reset by TOPRGU once system resets.
type: boolean
'#reset-cells':
const: 1
required:
- compatible
- reg
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
soc {
#address-cells = <2>;
#size-cells = <2>;
watchdog: watchdog@10007000 {
compatible = "mediatek,mt8183-wdt";
reg = <0 0x10007000 0 0x100>;
interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_LOW>;
mediatek,disable-extrst;
timeout-sec = <10>;
#reset-cells = <1>;
};
};