On 5/23/2018 3:57 AM, Robin Murphy wrote:
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 <ray.jui@xxxxxxxxxxxx>
Reviewed-by: Scott Branden <scott.branden@xxxxxxxxxxxx>
---
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?
Interesting, I did not even know that until you pointed this out (and
it's funny that I found that I actually reviewed arm,sp805.txt
internally in Broadcom code review).
It looks like one was done by Bhupesh Sharma (sp805-wdt.txt) and the
other was done by Anup Patel (arm,sp805.txt). Both were merged at the
same time around March 20, 2016: 915c56bc01d6. I'd assume both were sent
out at around the same time.
It sounds like we should definitely remove one of them. Given that
sp805-wdt.txt appears to have more detailed descriptions on the use of
the clocks, should we remove arm,sp805.txt?
Thanks,
Ray
Robin.
Examples:
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