+++ /dev/null
-Altera Timer
-
-Required properties:
-
-- compatible : should be "altr,timer-1.0"
-- reg : Specifies base physical address and size of the registers.
-- interrupts : Should contain the timer interrupt number
-- clock-frequency : The frequency of the clock that drives the counter, in Hz.
-
-Example:
-
-timer {
- compatible = "altr,timer-1.0";
- reg = <0x00400000 0x00000020>;
- interrupt-parent = <&cpu>;
- interrupts = <11>;
- clock-frequency = <125000000>;
-};
--- /dev/null
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/altr,timer-1.0.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Altera Timer
+
+maintainers:
+ - Dinh Nguyen <dinguyen@kernel.org>
+
+properties:
+ compatible:
+ const: altr,timer-1.0
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clock-frequency:
+ description: Frequency of the clock that drives the counter, in Hz.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ timer@400000 {
+ compatible = "altr,timer-1.0";
+ reg = <0x00400000 0x00000020>;
+ interrupts = <11>;
+ clock-frequency = <125000000>;
+ };