Messages in this thread Patch in this message | | | From | Sven Peter <> | Subject | [PATCH v2 1/2] dt-bindings: watchdog: Add Apple Watchdog | Date | Tue, 30 Nov 2021 17:18:08 +0100 |
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Apple SoCs come with a simple embedded watchdog. This watchdog is also required in order to reset the SoC.
Reviewed-by: Mark Kettenis <kettenis@openbsd.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Sven Peter <sven@svenpeter.dev> --- 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@svenpeter.dev> + +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
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