Commit 5f8ebd47 authored by Wang Qing's avatar Wang Qing Committed by Wim Van Sebroeck
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doc: mtk-wdt: support pre-timeout when the bark irq is available 



Add description of pre-timeout in mtk-wdt.

Signed-off-by: default avatarWang Qing <wangqing@vivo.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1619148020-2236-3-git-send-email-wangqing@vivo.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent 1bbce779

Documentation/devicetree/bindings/watchdog/mtk-wdt.txt

+5 −0
Original line number Diff line number Diff line 
Mediatek SoCs Watchdog timer



The watchdog supports a pre-timeout interrupt that fires timeout-sec/2

before the expiry.



Required properties:



- compatible should contain:
@@ -17,6 +20,7 @@ Required properties: 
- reg : Specifies base physical address and size of the registers.



Optional properties:

- interrupts: Watchdog pre-timeout (bark) interrupt.

- timeout-sec: contains the watchdog timeout in seconds.

- #reset-cells: Should be 1.
@@ -26,6 +30,7 @@ watchdog: watchdog@10007000 { 
	compatible = "mediatek,mt8183-wdt",

		     "mediatek,mt6589-wdt";

	reg = <0 0x10007000 0 0x100>;

	interrupts = <GIC_SPI 139 IRQ_TYPE_NONE>;

	timeout-sec = <10>;

	#reset-cells = <1>;

};