[V9,2/2] doc: mtk-wdt: support pre-timeout when the bark irq is available

Message ID 1619315527-8171-3-git-send-email-wangqing@vivo.com
State New
Headers show
Series
  • watchdog: mtk: support pre-timeout when the bark irq is available
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Commit Message

Wang Qing April 25, 2021, 1:52 a.m.
Add description of pre-timeout in mtk-wdt.

Signed-off-by: Wang Qing <wangqing@vivo.com>
---
 Documentation/devicetree/bindings/watchdog/mtk-wdt.txt | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Rob Herring April 29, 2021, 9:46 p.m. | #1
On Sun, 25 Apr 2021 09:52:07 +0800, Wang Qing wrote:
> Add description of pre-timeout in mtk-wdt.

> 

> Signed-off-by: Wang Qing <wangqing@vivo.com>

> ---

>  Documentation/devicetree/bindings/watchdog/mtk-wdt.txt | 5 +++++

>  1 file changed, 5 insertions(+)

> 



Please add Acked-by/Reviewed-by tags when posting new versions. However,
there's no need to repost patches *only* to add the tags. The upstream
maintainer will do that for acks received on the version they apply.

If a tag was not added on purpose, please state why and what changed.

Patch

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>;
 };