2 files changed, 56 insertions, 33 deletions
diff --git a/Documentation/devicetree/bindings/timer/lsi,zevio-timer.txt b/Documentation/devicetree/bindings/timer/lsi,zevio-timer.txt
deleted file mode 100644
index b2d07ad90e9a..000000000000
--- a/Documentation/devicetree/bindings/timer/lsi,zevio-timer.txt
+++ /dev/null
@@ -1,33 +0,0 @@
-TI-NSPIRE timer
-
-Required properties:
-
-- compatible : should be "lsi,zevio-timer".
-- reg : The physical base address and size of the timer (always first).
-- clocks: phandle to the source clock.
-
-Optional properties:
-
-- interrupts : The interrupt number of the first timer.
-- reg : The interrupt acknowledgement registers
-	(always after timer base address)
-
-If any of the optional properties are not given, the timer is added as a
-clock-source only.
-
-Example:
-
-timer {
-	compatible = "lsi,zevio-timer";
-	reg = <0x900D0000 0x1000>, <0x900A0020 0x8>;
-	interrupts = <19>;
-	clocks = <&timer_clk>;
-};
-
-Example (no clock-events):
-
-timer {
-	compatible = "lsi,zevio-timer";
-	reg = <0x900D0000 0x1000>;
-	clocks = <&timer_clk>;
-};
diff --git a/Documentation/devicetree/bindings/timer/lsi,zevio-timer.yaml b/Documentation/devicetree/bindings/timer/lsi,zevio-timer.yaml
new file mode 100644
index 000000000000..358455d8e7a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/lsi,zevio-timer.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/timer/lsi,zevio-timer.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI-NSPIRE timer
+
+maintainers:
+  - Daniel Tang <dt.tangr@gmail.com>
+
+properties:
+  compatible:
+    const: lsi,zevio-timer
+
+  reg:
+    minItems: 1
+    items:
+      - description: Timer registers
+      - description: Interrupt acknowledgement registers (optional)
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+
+allOf:
+  - if:
+      required: [ interrupts ]
+    then:
+      properties:
+        reg:
+          minItems: 2
+
+additionalProperties: false
+
+examples:
+  - |
+    timer@900d0000 {
+        compatible = "lsi,zevio-timer";
+        reg = <0x900D0000 0x1000>, <0x900A0020 0x8>;
+        interrupts = <19>;
+        clocks = <&timer_clk>;
+    };
+  - |
+    timer@900d0000 {
+        compatible = "lsi,zevio-timer";
+        reg = <0x900D0000 0x1000>;
+        clocks = <&timer_clk>;
+    };