| Message ID | 20201218101054.25416-2-rasmus.villemoes@prevas.dk |
|---|---|
| State | Accepted |
| Headers | show |
| Series | [v3,1/2] dt-bindings: rtc: add reset-source property | expand |
On Fri, Dec 18, 2020 at 4:11 AM Rasmus Villemoes <rasmus.villemoes@prevas.dk> 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. > > Suggested-by: Alexandre Belloni <alexandre.belloni@bootlin.com> > Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> > --- > Documentation/devicetree/bindings/rtc/rtc.yaml | 5 +++++ > 1 file changed, 5 insertions(+) Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/rtc/rtc.yaml b/Documentation/devicetree/bindings/rtc/rtc.yaml index 8acd2de3de3a..d30dc045aac6 100644 --- a/Documentation/devicetree/bindings/rtc/rtc.yaml +++ b/Documentation/devicetree/bindings/rtc/rtc.yaml @@ -63,6 +63,11 @@ 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. + additionalProperties: true ...
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. Suggested-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Rasmus Villemoes <rasmus.villemoes@prevas.dk> --- Documentation/devicetree/bindings/rtc/rtc.yaml | 5 +++++ 1 file changed, 5 insertions(+)