linux-kernel - [PATCH v3 1/1] dt-bindings: watchdog: convert ziirave-wdt.txt to yaml

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Message-Id: <20240814161250.4017427-1-Frank.Li@nxp.com>
Date: Wed, 14 Aug 2024 12:12:48 -0400
From: Frank Li <Frank.Li@....com>
To: Wim Van Sebroeck <wim@...ux-watchdog.org>,
	Guenter Roeck <linux@...ck-us.net>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Martyn Welch <martyn.welch@...labora.co.uk>,
	Van Sebroeck <wim@...ana.be>,
	linux-watchdog@...r.kernel.org (open list:WATCHDOG DEVICE DRIVERS),
	devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS),
	linux-kernel@...r.kernel.org (open list)
Cc: imx@...ts.linux.dev
Subject: [PATCH v3 1/1] dt-bindings: watchdog: convert ziirave-wdt.txt to yaml

Convert ziirave-wdt.txt to yaml format.

Additional change:
- Add i2c node in example.
- Add ref to watchdog.yaml

Fix below warning:
arch/arm64/boot/dts/freescale/imx8mq-zii-ultra-rmb3.dtb: /soc@...us@...00000/i2c@...40000/watchdog@38:
	failed to match any schema with compatible: ['zii,rave-wdt']

Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
Signed-off-by: Frank Li <Frank.Li@....com>
---
Change from v2 to v3
- using original driver submitter and wdt maintainer as maintainter
- add conor dooley review tag
- remove value in milliseconds

Change from v1 to v2
- add ref watchdog.yaml
- Remove timeout-sec
---
 .../bindings/watchdog/zii,rave-wdt.yaml       | 49 +++++++++++++++++++
 .../bindings/watchdog/ziirave-wdt.txt         | 19 -------
 2 files changed, 49 insertions(+), 19 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/watchdog/zii,rave-wdt.yaml
 delete mode 100644 Documentation/devicetree/bindings/watchdog/ziirave-wdt.txt

diff --git a/Documentation/devicetree/bindings/watchdog/zii,rave-wdt.yaml b/Documentation/devicetree/bindings/watchdog/zii,rave-wdt.yaml
new file mode 100644
index 0000000000000..9dbaa941538e3
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/zii,rave-wdt.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/zii,rave-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Zodiac RAVE Watchdog Timer
+
+maintainers:
+  - Martyn Welch <martyn.welch@...labora.co.uk>
+  - Guenter Roeck <linux@...ck-us.net>
+  - Wim Van Sebroeck <wim@...ana.be>
+
+properties:
+  compatible:
+    const: zii,rave-wdt
+
+  reg:
+    maxItems: 1
+    description: i2c slave address of device, usually 0x38
+
+  reset-duration-ms:
+    description:
+      Duration of the pulse generated when the watchdog times
+      out.
+
+required:
+  - compatible
+  - reg
+
+allOf:
+  - $ref: watchdog.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        watchdog@38 {
+            compatible = "zii,rave-wdt";
+            reg = <0x38>;
+            timeout-sec = <30>;
+            reset-duration-ms = <30>;
+        };
+    };
+
diff --git a/Documentation/devicetree/bindings/watchdog/ziirave-wdt.txt b/Documentation/devicetree/bindings/watchdog/ziirave-wdt.txt
deleted file mode 100644
index 3d878184ec3ff..0000000000000
--- a/Documentation/devicetree/bindings/watchdog/ziirave-wdt.txt
+++ /dev/null
@@ -1,19 +0,0 @@
-Zodiac RAVE Watchdog Timer
-
-Required properties:
-- compatible: must be "zii,rave-wdt"
-- reg: i2c slave address of device, usually 0x38
-
-Optional Properties:
-- timeout-sec: Watchdog timeout value in seconds.
-- reset-duration-ms: Duration of the pulse generated when the watchdog times
-  out. Value in milliseconds.
-
-Example:
-
-	watchdog@38 {
-		compatible = "zii,rave-wdt";
-		reg = <0x38>;
-		timeout-sec = <30>;
-		reset-duration-ms = <30>;
-	};
-- 
2.34.1