From 79df4a9b547ffa7de73d8fc29a7b2c2e372cccb7 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Fri, 20 Sep 2019 18:21:22 +0200 Subject: dt-bindings: watchdog: Convert Samsung SoC watchdog bindings to json-schema Convert Samsung S3C/S5P/Exynos watchdog bindings to DT schema format using json-schema. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Rob Herring Signed-off-by: Rob Herring --- .../devicetree/bindings/watchdog/samsung-wdt.yaml | 65 ++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml (limited to 'Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml') diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml new file mode 100644 index 000000000000..5a3a3cec8e20 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml @@ -0,0 +1,65 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/watchdog/samsung-wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Samsung SoC Watchdog Timer Controller + +maintainers: + - Krzysztof Kozlowski + +description: |+ + The Samsung's Watchdog controller is used for resuming system operation + after a preset amount of time during which the WDT reset event has not + occurred. + +properties: + compatible: + enum: + - samsung,s3c2410-wdt # for S3C2410 + - samsung,s3c6410-wdt # for S3C6410, S5PV210 and Exynos4 + - samsung,exynos5250-wdt # for Exynos5250 + - samsung,exynos5420-wdt # for Exynos5420 + - samsung,exynos7-wdt # for Exynos7 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + samsung,syscon-phandle: + $ref: /schemas/types.yaml#/definitions/phandle + description: + Phandle to the PMU system controller node (in case of Exynos5250 + and Exynos5420). + +required: + - compatible + - interrupts + - reg + +allOf: + - $ref: watchdog.yaml# + - if: + properties: + compatible: + contains: + enum: + - samsung,exynos5250-wdt + - samsung,exynos5420-wdt + then: + required: + - samsung,syscon-phandle + +examples: + - | + watchdog@101d0000 { + compatible = "samsung,exynos5250-wdt"; + reg = <0x101D0000 0x100>; + interrupts = <0 42 0>; + clocks = <&clock 336>; + clock-names = "watchdog"; + samsung,syscon-phandle = <&pmu_syscon>; + }; -- cgit v1.2.3 From 6fd64049cfe1eb07570726c423afec8aa1cb082b Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Fri, 20 Sep 2019 18:21:23 +0200 Subject: dt-bindings: watchdog: Add missing clocks requirement in Samsung SoC watchdog The Samsung SoC watchdog driver always required providing a clock (either through platform data or from DT). However when bindings were added in commit 9487a9cc7140 ("watchdog: s3c2410: Add support for device tree based probe"), they missed the requirement of clock. Signed-off-by: Krzysztof Kozlowski Reviewed-by: Rob Herring Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml') diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml index 5a3a3cec8e20..2fa40d8864b2 100644 --- a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml +++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml @@ -26,6 +26,13 @@ properties: reg: maxItems: 1 + clocks: + maxItems: 1 + + clock-names: + items: + - const: watchdog + interrupts: maxItems: 1 @@ -37,6 +44,8 @@ properties: required: - compatible + - clocks + - clock-names - interrupts - reg -- cgit v1.2.3