[PATCH V9, RESEND, 2/2] doc: mtk-wdt: support pre-timeout when the bark irq is available
From: Wang Qing <hidden>
Date: 2021-05-31 02:00:54
Also in:
linux-arm-kernel, linux-devicetree, linux-watchdog, lkml
Subsystem:
open firmware and flattened device tree bindings, the rest, watchdog device drivers · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Wim Van Sebroeck, Guenter Roeck
Add description of pre-timeout in mtk-wdt. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Wang Qing <redacted> --- Documentation/devicetree/bindings/watchdog/mtk-wdt.txt | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
index e36ba60..8e27777
--- a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt@@ -1,5 +1,8 @@ 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>; };
--
2.7.4
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