50e02e9a03
Convert the ARM Timer-Watchdog Device Tree binding documentation to json-schema. As the old binding document actually contained two bindings, it is split in two document: one for the timer part, and one for the watchdog part. Document missing properties. Update examples to match reality. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/3ccc0cf5319f56e230ee3b8a009f8d63afb114c1.1621521847.git.geert+renesas@glider.be [robh: Fix up node names] Signed-off-by: Rob Herring <robh@kernel.org>
57 lines
1.2 KiB
YAML
57 lines
1.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/timer/arm,twd-timer.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: ARM Timer-Watchdog Timer
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maintainers:
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- Rob Herring <robh@kernel.org>
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description:
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ARM 11MP, Cortex-A5 and Cortex-A9 are often associated with a per-core
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Timer-Watchdog (aka TWD), which provides both a per-cpu local timer
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and watchdog.
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The TWD is usually attached to a GIC to deliver its two per-processor
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interrupts.
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properties:
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compatible:
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enum:
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- arm,cortex-a9-twd-timer
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- arm,cortex-a5-twd-timer
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- arm,arm11mp-twd-timer
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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maxItems: 1
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always-on:
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description:
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If present, the timer is powered through an always-on power domain,
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therefore it never loses context.
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required:
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- compatible
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- reg
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- interrupts
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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timer@2c000600 {
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compatible = "arm,arm11mp-twd-timer";
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reg = <0x2c000600 0x20>;
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interrupts = <GIC_PPI 13 0xf01>;
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};
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