On Fri, Oct 25, 2019 at 02:13:02PM +0800, Xingyu Chen wrote: > The binding targets the Meson-A/C series compatible SoCs, in which the > watchdog registers are in secure world. > > Signed-off-by: Xingyu Chen <xingyu.chen@xxxxxxxxxxx> > --- > .../bindings/watchdog/amlogic,meson-sec-wdt.yaml | 34 ++++++++++++++++++++++ > 1 file changed, 34 insertions(+) > create mode 100644 Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml > > diff --git a/Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml b/Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml > new file mode 100644 > index 00000000..0bbc807 > --- /dev/null > +++ b/Documentation/devicetree/bindings/watchdog/amlogic,meson-sec-wdt.yaml > @@ -0,0 +1,34 @@ > +# SPDX-License-Identifier: (GPL-2.0+ OR MIT) > +# Copyright (c) 2019 Amlogic, Inc > +%YAML 1.2 > +--- > +$id: "http://devicetree.org/schemas/power/amlogic,meson-sec-wdt.yaml#"; > +$schema: "http://devicetree.org/meta-schemas/core.yaml#"; > + > +title: Amlogic Meson Secure Watchdog Timer > + > +maintainers: > + - Xingyu Chen <xingyu.chen@xxxxxxxxxxx> > + > +description: |+ > + Secure Watchdog Timer used in Meson-A/C series Compatible SoCs > + > +properties: > + compatible: > + enum: > + - amlogic,meson-sec-wdt If there are no other properties, then you don't need this. Just have the secure firmware driver instantiate the watchdog. > + > + secure-monitor: > + description: phandle to the secure-monitor node > + $ref: /schemas/types.yaml#/definitions/phandle > + > +required: > + - compatible > + - secure-monitor > + > +examples: > + - | > + watchdog { > + compatible = "amlogic,meson-sec-wdt"; > + secure-monitor = <&sm>; > + }; > -- > 2.7.4 >
