On Tue, Nov 30, 2021 at 05:18:08PM +0100, Sven Peter wrote: > Apple SoCs come with a simple embedded watchdog. This watchdog is also > required in order to reset the SoC. > > Reviewed-by: Mark Kettenis <kettenis@xxxxxxxxxxx> > Reviewed-by: Rob Herring <robh@xxxxxxxxxx> > Signed-off-by: Sven Peter <sven@xxxxxxxxxxxxx> Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx> > --- > v1 --> v2: > - add Mark's and Rob's r-b tags > > .../bindings/watchdog/apple,wdt.yaml | 52 +++++++++++++++++++ > MAINTAINERS | 1 + > 2 files changed, 53 insertions(+) > create mode 100644 Documentation/devicetree/bindings/watchdog/apple,wdt.yaml > > diff --git a/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml > new file mode 100644 > index 000000000000..e58c56a6fdf6 > --- /dev/null > +++ b/Documentation/devicetree/bindings/watchdog/apple,wdt.yaml > @@ -0,0 +1,52 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/watchdog/apple,wdt.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Apple SoC Watchdog > + > +allOf: > + - $ref: "watchdog.yaml#" > + > +maintainers: > + - Sven Peter <sven@xxxxxxxxxxxxx> > + > +properties: > + compatible: > + items: > + - enum: > + - apple,t8103-wdt > + - apple,t6000-wdt > + - const: apple,wdt > + > + reg: > + maxItems: 1 > + > + clocks: > + maxItems: 1 > + > + interrupts: > + maxItems: 1 > + > +required: > + - compatible > + - reg > + - clocks > + - interrupts > + > +unevaluatedProperties: false > + > +examples: > + - | > + #include <dt-bindings/interrupt-controller/apple-aic.h> > + #include <dt-bindings/interrupt-controller/irq.h> > + > + wdt: watchdog@50000000 { > + compatible = "apple,t8103-wdt", "apple,wdt"; > + reg = <0x50000000 0x4000>; > + clocks = <&clk>; > + interrupts = <AIC_IRQ 123 IRQ_TYPE_LEVEL_HIGH>; > + }; > + > +... > diff --git a/MAINTAINERS b/MAINTAINERS > index 360e9aa0205d..859201bbd4e8 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -1750,6 +1750,7 @@ F: Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml > F: Documentation/devicetree/bindings/mailbox/apple,mailbox.yaml > F: Documentation/devicetree/bindings/pci/apple,pcie.yaml > F: Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml > +F: Documentation/devicetree/bindings/watchdog/apple,wdt.yaml > F: arch/arm64/boot/dts/apple/ > F: drivers/i2c/busses/i2c-pasemi-core.c > F: drivers/i2c/busses/i2c-pasemi-platform.c > -- > 2.25.1 >
