From: Eddie James <eajames@linux.ibm.com>
To: linux-watchdog@vger.kernel.org
Cc: linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org,
wim@linux-watchdog.org, linux@roeck-us.net, andrew@aj.id.au,
joel@jms.id.au, robh+dt@kernel.org,
krzysztof.kozlowski+dt@linaro.org, devicetree@vger.kernel.org,
Eddie James <eajames@linux.ibm.com>
Subject: [PATCH 2/2] dt-bindings: watchdog: aspeed: Document aspeed,pre-timeout-irq-us
Date: Fri, 21 Oct 2022 10:15:59 -0500 [thread overview]
Message-ID: <20221021151559.781983-3-eajames@linux.ibm.com> (raw)
In-Reply-To: <20221021151559.781983-1-eajames@linux.ibm.com>
Document this new property for the pre-timeout interrupt.
Signed-off-by: Eddie James <eajames@linux.ibm.com>
---
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
next prev parent reply other threads:[~2022-10-21 15:16 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-21 15:15 [PATCH 0/2] watchdog: aspeed: Add pre-timeout interrupt support Eddie James
2022-10-21 15:15 ` [PATCH 1/2] " Eddie James
2022-10-21 16:56 ` Guenter Roeck
2022-10-21 19:39 ` Eddie James
2022-10-22 4:00 ` Guenter Roeck
2022-11-01 20:54 ` Eddie James
2022-10-21 15:15 ` Eddie James [this message]
2022-10-22 16:20 ` [PATCH 2/2] dt-bindings: watchdog: aspeed: Document aspeed,pre-timeout-irq-us Krzysztof Kozlowski
2022-10-24 18:44 ` Rob Herring
2022-10-24 19:03 ` Guenter Roeck
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