On Mon, Nov 11, 2024 at 04:41:43PM +0100, Philipp Rosenberger wrote: > This commit introduces the nxp,battery-backed property to the > nxp,pcf2127 Device Tree bindings. This flag indicates that the > RTC is battery-backed and forces the driver to enable the > battery switch-over function, but only if no other mode is already > configured. > > With the PCF2131, the battery switch-over is disabled by default. > If the battery switch-over is not enabled by the bootloader or > firmware, this property ensures that the RTC can function correctly > when powered by the battery. > > Signed-off-by: Philipp Rosenberger <p.rosenberger@xxxxxxxxxx> > --- > Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml b/Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml > index 2d9fe5a75b06..87ba16346fb4 100644 > --- a/Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml > +++ b/Documentation/devicetree/bindings/rtc/nxp,pcf2127.yaml > @@ -30,6 +30,13 @@ properties: > > reset-source: true > > + nxp,battery-backed: > + description: | > + Indicates that the RTC is battery-backed. This property forces > + the driver to enable the battery switch-over function, but only if > + no other mode is already configured. > + $ref: /schemas/types.yaml#/definitions/flag Seems like something that would be a common property? I didn't find any prior art though. Rob
