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Date: Tue, 14 Apr 2020 10:32:47 +0800 From: Anson Huang <Anson.Huang@....com> To: wim@...ux-watchdog.org, linux@...ck-us.net, robh+dt@...nel.org, shawnguo@...nel.org, s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com, linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Cc: Linux-imx@....com Subject: [PATCH 1/2] dt-bindings: watchdog: Convert i.MX to json-schema Convert the i.MX watchdog binding to DT schema format using json-schema. Signed-off-by: Anson Huang <Anson.Huang@....com> --- .../devicetree/bindings/watchdog/fsl-imx-wdt.txt | 24 ---------- .../devicetree/bindings/watchdog/fsl-imx-wdt.yaml | 56 ++++++++++++++++++++++ 2 files changed, 56 insertions(+), 24 deletions(-) delete mode 100644 Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt create mode 100644 Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt b/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt deleted file mode 100644 index adc6b76..0000000 --- a/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt +++ /dev/null @@ -1,24 +0,0 @@ -* Freescale i.MX Watchdog Timer (WDT) Controller - -Required properties: -- compatible : Should be "fsl,<soc>-wdt" -- reg : Should contain WDT registers location and length -- interrupts : Should contain WDT interrupt - -Optional properties: -- big-endian: If present the watchdog device's registers are implemented - in big endian mode, otherwise in native mode(same with CPU), for more - detail please see: Documentation/devicetree/bindings/regmap/regmap.txt. -- fsl,ext-reset-output: If present the watchdog device is configured to - assert its external reset (WDOG_B) instead of issuing a software reset. -- timeout-sec : Contains the watchdog timeout in seconds - -Examples: - -wdt@...98000 { - compatible = "fsl,imx51-wdt", "fsl,imx21-wdt"; - reg = <0x73f98000 0x4000>; - interrupts = <58>; - big-endian; - timeout-sec = <20>; -}; diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml b/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml new file mode 100644 index 0000000..674d902 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.yaml @@ -0,0 +1,56 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/watchdog/fsl-imx-wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale i.MX Watchdog Timer (WDT) Controller + +maintainers: + - Anson Huang <Anson.Huang@....com> + +allOf: + - $ref: "watchdog.yaml#" + +properties: + compatible: + enum: + - fsl,imx21-wdt + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + description: | + Watchdog's clock source. + maxItems: 1 + + fsl,ext-reset-output: + $ref: /schemas/types.yaml#/definitions/flag + description: | + If present, the watchdog device is configured to assert its + external reset (WDOG_B) instead of issuing a software reset. + +required: + - compatible + - interrupts + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/imx6qdl-clock.h> + + wdog1: watchdog@...c000 { + compatible = "fsl,imx21-wdt"; + reg = <0x020bc000 0x4000>; + interrupts = <0 80 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&clks IMX6QDL_CLK_IPG>; + }; + +... -- 2.7.4
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