On Fri, Dec 11, 2020 at 3:56 PM Rasmus Villemoes <rasmus.villemoes@xxxxxxxxx> wrote: > > Some RTCs, e.g. the pcf2127, can be used as a hardware watchdog. But > if the reset pin is not actually wired up, the driver exposes a > watchdog device that doesn't actually work. > > Provide a standard binding that can be used to indicate that a given > RTC can perform a reset of the machine, similar to wakeup-source. Why not use the watchdog 'timeout-sec' property? Please send DT patches to the DT list. > > Suggested-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> > Signed-off-by: Rasmus Villemoes <rasmus.villemoes@xxxxxxxxx> > --- > Documentation/devicetree/bindings/rtc/rtc.yaml | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml > index ee237b2ed66a..b5e24dc24b0b 100644 > --- a/Documentation/devicetree/bindings/rtc/rtc.yaml > +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml > @@ -47,4 +47,9 @@ properties: > description: > Enables wake up of host system on alarm. > > + reset-source: > + $ref: /schemas/types.yaml#/definitions/flag > + description: > + The RTC is able to reset the machine. > + > ... > -- > 2.23.0 >
