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Message-Id: <1586911211-1141-1-git-send-email-Anson.Huang@nxp.com>
Date: Wed, 15 Apr 2020 08:40:10 +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 V2 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>
---
No change.
---
.../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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