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| author |   Sven Peter <sven@svenpeter.dev> | 2021-11-30 17:18:08 +0100 |
|---|---|---|
| committer |   Hector Martin <marcan@marcan.st> | 2021-12-07 13:04:02 +0900 |
| commit | 9e9652862ac253e7b589e6c624ac6f40df5fa297 (patch) | |
| tree | 59b2d5c7934a523d12d39028ccdf9bff26007e13 /Documentation/devicetree/bindings/watchdog | |
| parent | dt-bindings: interrupt-controller: apple,aic: Add power-domains property (diff) | |
| download | linux-dev-9e9652862ac253e7b589e6c624ac6f40df5fa297.tar.xz linux-dev-9e9652862ac253e7b589e6c624ac6f40df5fa297.zip | |
dt-bindings: watchdog: Add Apple Watchdog
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>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Hector Martin <marcan@marcan.st>
Diffstat (limited to 'Documentation/devicetree/bindings/watchdog')
| -rw-r--r-- | Documentation/devicetree/bindings/watchdog/apple,wdt.yaml | 52 |
1 files changed, 52 insertions, 0 deletions
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>; + }; + +... |