Re: [PATCH 1/4] dt-bindings: watchdog: aspeed: Add property for WDT SW reset

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On 10/7/24 10:59, Rob Herring wrote:
On Mon, Oct 07, 2024 at 02:34:05PM +0800, Chin-Ting Kuo wrote:
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.

Why can't this be implicit based on the ast2600 compatible string?


Same question here.

Guenter





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