Document this new property for the pre-timeout interrupt. Signed-off-by: Eddie James <eajames@xxxxxxxxxxxxx> --- Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt index a8197632d6d2..81d2c35ca7e3 100644 --- a/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/aspeed-wdt.txt @@ -40,12 +40,17 @@ Optional properties: specified no external signal is sent. - aspeed,ext-pulse-duration: External signal pulse duration in microseconds -Optional properties for AST2500-compatible watchdogs: +Optional properties for AST2500 and AST2600 compatible watchdogs: - aspeed,ext-push-pull: If aspeed,external-signal is present, set the pin's drive type to push-pull. The default is open-drain. - aspeed,ext-active-high: If aspeed,external-signal is present and and the pin is configured as push-pull, then set the pulse polarity to active-high. The default is active-low. + - aspeed,pre-timeout-irq-us: If aspeed,pre-timeout-irq-us is non-zero, the + pre-timeout interrupt will be enabled for the + watchdog. The interrupt will fire the specified + number of microseconds before the watchdog expires + and trigger a kernel panic. Example: -- 2.31.1
