[PATCH v2] dt-bindings: watchdog: Convert marvell,orion-wdt to DT schema

["Rob Herring (Arm)" <robh@kernel.org>]

Convert the Marvell Orion and Armada watchdog binding to DT schema
format. It's a straight-forward conversion.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
---
v2:
 - Fix order of clock descriptions
 - Add 2nd interrupt found on some Armada platforms
 - Add reference to watchdog.yaml and drop timeout-sec

 .../devicetree/bindings/watchdog/marvel.txt   |  45 --------
 .../bindings/watchdog/marvell,orion-wdt.yaml  | 100 ++++++++++++++++++
 2 files changed, 100 insertions(+), 45 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/watchdog/marvel.txt
 create mode 100644 Documentation/devicetree/bindings/watchdog/marvell,orion-wdt.yaml

diff --git a/Documentation/devicetree/bindings/watchdog/marvel.txt b/Documentation/devicetree/bindings/watchdog/marvel.txt
deleted file mode 100644
index c1b67a78f00c..000000000000
--- a/Documentation/devicetree/bindings/watchdog/marvel.txt
+++ /dev/null
@@ -1,45 +0,0 @@
-* Marvell Orion Watchdog Time
-
-Required Properties:
-
-- Compatibility : "marvell,orion-wdt"
-		  "marvell,armada-370-wdt"
-		  "marvell,armada-xp-wdt"
-		  "marvell,armada-375-wdt"
-		  "marvell,armada-380-wdt"
-
-- reg		: Should contain two entries: first one with the
-		  timer control address, second one with the
-		  rstout enable address.
-
-For "marvell,armada-375-wdt" and "marvell,armada-380-wdt":
-
-- reg		: A third entry is mandatory and should contain the
-                  shared mask/unmask RSTOUT address.
-
-Clocks required for compatibles = "marvell,orion-wdt",
-				  "marvell,armada-370-wdt":
-- clocks : Must contain a single entry describing the clock input
-
-Clocks required for compatibles = "marvell,armada-xp-wdt"
-				  "marvell,armada-375-wdt"
-				  "marvell,armada-380-wdt":
-- clocks : Must contain an entry for each entry in clock-names.
-- clock-names : Must include the following entries:
-  "nbclk" (L2/coherency fabric clock),
-  "fixed" (Reference 25 MHz fixed-clock).
-
-Optional properties:
-
-- interrupts	: Contains the IRQ for watchdog expiration
-- timeout-sec	: Contains the watchdog timeout in seconds
-
-Example:
-
-	wdt@20300 {
-		compatible = "marvell,orion-wdt";
-		reg = <0x20300 0x28>, <0x20108 0x4>;
-		interrupts = <3>;
-		timeout-sec = <10>;
-		clocks = <&gate_clk 7>;
-	};
diff --git a/Documentation/devicetree/bindings/watchdog/marvell,orion-wdt.yaml b/Documentation/devicetree/bindings/watchdog/marvell,orion-wdt.yaml
new file mode 100644
index 000000000000..fdc7bc45dfde
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/marvell,orion-wdt.yaml
@@ -0,0 +1,100 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/marvell,orion-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Orion Watchdog Timer
+
+maintainers:
+  - Andrew Lunn <andrew@lunn.ch>
+  - Gregory Clement <gregory.clement@bootlin.com>
+
+properties:
+  compatible:
+    enum:
+      - marvell,orion-wdt
+      - marvell,armada-370-wdt
+      - marvell,armada-xp-wdt
+      - marvell,armada-375-wdt
+      - marvell,armada-380-wdt
+
+  reg:
+    minItems: 2
+    items:
+      - description: Timer control register address
+      - description: RSTOUT enable register address
+      - description: Shared mask/unmask RSTOUT register address
+
+  clocks:
+    minItems: 1
+    items:
+      - description: L2/coherency fabric clock input
+      - description: Reference 25 MHz fixed-clock supply
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: nbclk
+      - const: fixed
+
+  interrupts:
+    minItems: 1
+    items:
+      - description: timeout
+      - description: pre-timeout
+
+allOf:
+  - $ref: watchdog.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - marvell,armada-375-wdt
+              - marvell,armada-380-wdt
+    then:
+      properties:
+        reg:
+          minItems: 3
+    else:
+      properties:
+        reg:
+          maxItems: 2
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - marvell,armada-xp-wdt
+              - marvell,armada-375-wdt
+              - marvell,armada-380-wdt
+    then:
+      properties:
+        clocks:
+          minItems: 2
+        clock-names:
+          minItems: 2
+        interrupts:
+          minItems: 2
+
+      required:
+        - clock-names
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    watchdog@20300 {
+        compatible = "marvell,orion-wdt";
+        reg = <0x20300 0x28>, <0x20108 0x4>;
+        interrupts = <3>;
+        timeout-sec = <10>;
+        clocks = <&gate_clk 7>;
+    };
-- 
2.51.0