[PATCH v2 1/2] dt-bindings: watchdog: Add Apple Watchdog
flat view
STALE1772d
REVIEWED: 7 (6M)
From: Sven Peter <hidden>
Date: 2021-11-30 16:18:33
Also in:
linux-arm-kernel, linux-watchdog, lkml
Subsystem:
arm/apple machine support, open firmware and flattened device tree bindings, the rest, watchdog device drivers · Maintainers:
Sven Peter, Janne Grunau, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds, Wim Van Sebroeck, Guenter Roeck
2 review trailers (1 from subsystem maintainers).
Apple SoCs come with a simple embedded watchdog. This watchdog is also required in order to reset the SoC. Reviewed-by: Mark Kettenis <redacted> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Sven Peter <redacted> --- 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