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This doesn't yet do anything in the tools, but make it explicit so we can check either 'unevaluatedProperties' or 'additionalProperties' is present in schemas. 'unevaluatedProperties' is appropriate when including another schema (via '$ref') and all possible properties and/or child nodes are not explicitly listed in the schema with the '$ref'. This is in preparation to add a meta-schema to check for missing 'unevaluatedProperties' or 'additionalProperties'. This has been a constant source of review issues. Acked-by: Mark Brown <broonie@kernel.org> Acked-by: Wolfram Sang <wsa@kernel.org> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Acked-By: Vinod Koul <vkoul@kernel.org> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/20201005183830.486085-2-robh@kernel.org Signed-off-by: Rob Herring <robh@kernel.org>
77 lines
1.7 KiB
YAML
77 lines
1.7 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/watchdog/samsung-wdt.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Samsung SoC Watchdog Timer Controller
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maintainers:
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- Krzysztof Kozlowski <krzk@kernel.org>
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description: |+
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The Samsung's Watchdog controller is used for resuming system operation
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after a preset amount of time during which the WDT reset event has not
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occurred.
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properties:
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compatible:
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enum:
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- samsung,s3c2410-wdt # for S3C2410
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- samsung,s3c6410-wdt # for S3C6410, S5PV210 and Exynos4
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- samsung,exynos5250-wdt # for Exynos5250
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- samsung,exynos5420-wdt # for Exynos5420
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- samsung,exynos7-wdt # for Exynos7
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reg:
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maxItems: 1
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clocks:
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maxItems: 1
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clock-names:
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items:
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- const: watchdog
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interrupts:
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maxItems: 1
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samsung,syscon-phandle:
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$ref: /schemas/types.yaml#/definitions/phandle
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description:
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Phandle to the PMU system controller node (in case of Exynos5250
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and Exynos5420).
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required:
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- compatible
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- clocks
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- clock-names
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- interrupts
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- reg
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allOf:
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- $ref: watchdog.yaml#
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- if:
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properties:
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compatible:
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contains:
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enum:
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- samsung,exynos5250-wdt
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- samsung,exynos5420-wdt
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then:
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required:
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- samsung,syscon-phandle
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unevaluatedProperties: false
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examples:
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- |
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watchdog@101d0000 {
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compatible = "samsung,exynos5250-wdt";
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reg = <0x101D0000 0x100>;
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interrupts = <0 42 0>;
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clocks = <&clock 336>;
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clock-names = "watchdog";
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samsung,syscon-phandle = <&pmu_syscon>;
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};
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