Re: [PATCH 1/5] Documentation: DT: Add optional 'timeout-sec' property for sp805
From: Robin Murphy <robin.murphy@arm.com>
Date: 2018-05-23 10:57:44
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linux-arm-kernel, linux-watchdog, lkml
On 22/05/18 19:47, Ray Jui wrote:
quoted hunk ↗ jump to hunk
Update the SP805 binding document to add optional 'timeout-sec' devicetree property Signed-off-by: Ray Jui <redacted> Reviewed-by: Scott Branden <scott.branden@broadcom.com> --- Documentation/devicetree/bindings/watchdog/sp805-wdt.txt | 2 ++ 1 file changed, 2 insertions(+)diff --git a/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt b/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt index edc4f0e..f898a86 100644 --- a/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt +++ b/Documentation/devicetree/bindings/watchdog/sp805-wdt.txt@@ -19,6 +19,8 @@ Required properties: Optional properties: - interrupts : Should specify WDT interrupt number. +- timeout-sec : Should specify default WDT timeout in seconds. If unset, the + default timeout is 30 seconds
According to the SP805 TRM, the default interval is dependent on the rate of WDOGCLK, but would typically be a lot longer than that :/ On a related note, anyone have any idea why we seem to have two subtly different SP805 bindings defined? Robin.
Examples: