Hello Rob, On 07/06/2021 14:37:18-0500, Rob Herring wrote: > The PL031 RTC binding has been in use for a long time, but never got > documented. Fortunately, it's simple and existing users are consistent. > > Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx> > Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> > Cc: linux-rtc@xxxxxxxxxxxxxxx > Signed-off-by: Rob Herring <robh@xxxxxxxxxx> > --- > .../devicetree/bindings/rtc/arm,pl031.yaml | 56 +++++++++++++++++++ > 1 file changed, 56 insertions(+) > create mode 100644 Documentation/devicetree/bindings/rtc/arm,pl031.yaml > > diff --git a/Documentation/devicetree/bindings/rtc/arm,pl031.yaml b/Documentation/devicetree/bindings/rtc/arm,pl031.yaml > new file mode 100644 > index 000000000000..77452c9e9b63 > --- /dev/null > +++ b/Documentation/devicetree/bindings/rtc/arm,pl031.yaml > @@ -0,0 +1,56 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/rtc/arm,pl031.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Arm Primecell PL031 Real Time Clock > + > +select: > + properties: > + compatible: > + contains: > + const: arm,pl031 > + required: > + - compatible > + > +allOf: > + - $ref: rtc.yaml# > + > +maintainers: > + - Rob Herring <robh@xxxxxxxxxx> > + > +properties: > + compatible: > + items: > + - const: arm,pl031 > + - const: arm,primecell > + > + reg: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > + clocks: > + maxItems: 1 > + > + clock-names: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + - clocks > + - clock-names > + As the driver sets the range, it also supports start-date from rtc.yaml With that added: Acked-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> -- Alexandre Belloni, co-owner and COO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com