Add "aspeed,restart-sw" property to distinguish normal WDT
reset from system restart triggered by SW consciously.
Signed-off-by: Chin-Ting Kuo <chin-ting_kuo@xxxxxxxxxxxxxx>
---
.../bindings/watchdog/aspeed,ast2400-wdt.yaml | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml b/Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml
index be78a9865584..6cc3604c295a 100644
--- a/Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/aspeed,ast2400-wdt.yaml
@@ -95,6 +95,17 @@ properties:
array with the first word defined using the AST2600_WDT_RESET1_* macros,
and the second word defined using the AST2600_WDT_RESET2_* macros.
+ aspeed,restart-sw:
+ $ref: /schemas/types.yaml#/definitions/flag
+ description: >
+ Normally, ASPEED WDT reset may occur when system hangs or reboot
+ triggered by SW consciously. However, system doesn't know whether the
+ restart is triggered by SW consciously since the reset event flag is
+ the same as normal WDT timeout reset. With this property, SW can
+ restart the system immediately and directly without wait for WDT
+ timeout occurs. The reset event flag is also different from the normal
+ WDT reset. This property is only supported since AST2600 platform.
+
required:
- compatible
- reg
--
2.34.1
