From 320d159e2d63a97a40f24cd6dfda5a57eec65b91 Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Fri, 18 Dec 2020 11:10:53 +0100 Subject: dt-bindings: rtc: add reset-source property 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 Signed-off-by: Rasmus Villemoes Reviewed-by: Rob Herring Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20201218101054.25416-2-rasmus.villemoes@prevas.dk --- Documentation/devicetree/bindings/rtc/rtc.yaml | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'Documentation/devicetree') 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 ... -- cgit v1.2.3