From mboxrd@z Thu Jan 1 00:00:00 1970 From: robin.murphy@arm.com (Robin Murphy) Date: Wed, 23 May 2018 11:57:25 +0100 Subject: [PATCH 1/5] Documentation: DT: Add optional 'timeout-sec' property for sp805 In-Reply-To: <1527014840-21236-2-git-send-email-ray.jui@broadcom.com> References: <1527014840-21236-1-git-send-email-ray.jui@broadcom.com> <1527014840-21236-2-git-send-email-ray.jui@broadcom.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 22/05/18 19:47, Ray Jui wrote: > Update the SP805 binding document to add optional 'timeout-sec' > devicetree property > > Signed-off-by: Ray Jui > Reviewed-by: Scott Branden > --- > 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: > >