[PATCH v2 1/3] dt-bindings: watchdog: ti,rti-wdt: Add support for WDIOF_CARDRESET
Li, Hua Qian
HuaQian.Li at siemens.com
Tue Jul 11 18:40:32 PDT 2023
On Tue, 2023-07-11 at 11:23 +0200, Krzysztof Kozlowski wrote:
> On 11/07/2023 11:17, huaqian.li at siemens.com wrote:
> > From: Li Hua Qian <huaqian.li at siemens.com>
> >
> > TI RTI (Real Time Interrupt) Watchdog doesn't support to record the
> > watchdog cause. Add a reserved memory to know the last reboot was
> > caused
> > by the watchdog card. In the reserved memory, some specific info
> > will be
> > saved to indicate whether the watchdog reset was triggered in last
> > boot.
> >
> > Signed-off-by: Li Hua Qian <huaqian.li at siemens.com>
> > ---
>
> Missing changelog.
Thanks for pointing out.
>
> > .../devicetree/bindings/watchdog/ti,rti-wdt.yaml | 13
> > ++++++++++++-
> > 1 file changed, 12 insertions(+), 1 deletion(-)
> >
> > diff --git a/Documentation/devicetree/bindings/watchdog/ti,rti-
> > wdt.yaml b/Documentation/devicetree/bindings/watchdog/ti,rti-
> > wdt.yaml
> > index fc553211e42d..f227db08dc70 100644
> > --- a/Documentation/devicetree/bindings/watchdog/ti,rti-wdt.yaml
> > +++ b/Documentation/devicetree/bindings/watchdog/ti,rti-wdt.yaml
> > @@ -26,7 +26,18 @@ properties:
> > - ti,j7-rti-wdt
> >
> > reg:
> > - maxItems: 1
> > + maxItems: 2
>
> The expected syntax is in such case:
> items:
> - description: ...
> - description: ...
>
> You will find plenty of examples for this.
>
> > + description:
> > + - Contains the address and the size of MCU RTI register.
> > + - Contains the address and the size of reserved memory,
> > which
>
> I don't think Conor suggested using reg of the device, but reg of
> reserved memory. This is not device address space, but just some
> random
> memory.
>
> memory-region seems proper to me. We were just discussing totally
> useless new property of size.
I guess I misunderstood what Conor suggested, I will change back to
memory-region and get size from reserved-memory. Does this look good
to you?
>
> What's more - you did not test it... so usual template:
>
> It does not look like you tested the DTS against bindings. Please run
> `make dtbs_check` (see
> Documentation/devicetree/bindings/writing-schema.rst or
> https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
> for instructions).
>
> Best regards,
> Krzysztof
>
Sorry for this, I will make sure this is no problem in the next
version.
Best regards,
Li Hua Qian
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