diff options
| author | Wang Qing <wangqing@vivo.com> | 2021-04-25 09:52:07 +0800 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2021-06-21 08:49:10 +0200 |
| commit | 5f8ebd4766dd072c8152255d45b352d444592a33 (patch) | |
| tree | ca9b00ad95118e05dee341d57966f7bacbe29c34 | |
| parent | 1bbce7792bd19b95e44fd37db88b98091191e199 (diff) | |
doc: mtk-wdt: support pre-timeout when the bark irq is available
Add description of pre-timeout in mtk-wdt.
Signed-off-by: Wang Qing <wangqing@vivo.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1619148020-2236-3-git-send-email-wangqing@vivo.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
| -rw-r--r-- | Documentation/devicetree/bindings/watchdog/mtk-wdt.txt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt index e36ba60de829..8e277778f923 100644 --- 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>; }; |