linux-kernel - [v3,1/2] dt-bindings: watchdog: mtk-wdt: add disable_wdt

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Date:   Tue, 14 Sep 2021 20:34:53 +0800
From:   Fengquan Chen <Fengquan.Chen@...iatek.com>
To:     Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        <linux-watchdog@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     <fengquan.chen@...iatek.com>, <tinghan.shen@...iatek.com>,
        <randy.wu@...iatek.com>, <rex-bc.chen@...iatek.com>,
        <christine.zhu@...iatek.com>, <joe.yang@...iatek.com>,
        <zhishuang.zhang@...iatek.com>, Rob Herring <robh@...nel.org>
Subject: [v3,1/2] dt-bindings: watchdog: mtk-wdt: add disable_wdt_extrst support

This patch add a description and example of disable_wdt_extrst
element for watchdog on MTK Socs

Signed-off-by: Fengquan Chen <fengquan.chen@...iatek.com>
Acked-by: Rob Herring <robh@...nel.org>
---
 Documentation/devicetree/bindings/watchdog/mtk-wdt.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
index a4e31ce96e0e..0114871f887a 100644
--- a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
@@ -22,6 +22,7 @@ Required properties:
 - reg : Specifies base physical address and size of the registers.
 
 Optional properties:
+- mediatek,disable-extrst: disable send output reset signal
 - interrupts: Watchdog pre-timeout (bark) interrupt.
 - timeout-sec: contains the watchdog timeout in seconds.
 - #reset-cells: Should be 1.
@@ -31,6 +32,7 @@ Example:
 watchdog: watchdog@...07000 {
 	compatible = "mediatek,mt8183-wdt",
 		     "mediatek,mt6589-wdt";
+	mediatek,disable-extrst;
 	reg = <0 0x10007000 0 0x100>;
 	interrupts = <GIC_SPI 139 IRQ_TYPE_NONE>;
 	timeout-sec = <10>;
-- 
2.25.1