+++ /dev/null
-Binding for an external clock signal driven by a PWM pin.
-
-This binding uses the common clock binding[1] and the common PWM binding[2].
-
-[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
-[2] Documentation/devicetree/bindings/pwm/pwm.txt
-
-Required properties:
-- compatible : shall be "pwm-clock".
-- #clock-cells : from common clock binding; shall be set to 0.
-- pwms : from common PWM binding; this determines the clock frequency
- via the period given in the PWM specifier.
-
-Optional properties:
-- clock-output-names : From common clock binding.
-- clock-frequency : Exact output frequency, in case the PWM period
- is not exact but was rounded to nanoseconds.
-
-Example:
- clock {
- compatible = "pwm-clock";
- #clock-cells = <0>;
- clock-frequency = <25000000>;
- clock-output-names = "mipi_mclk";
- pwms = <&pwm2 0 40>; /* 1 / 40 ns = 25 MHz */
- };
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/clock/pwm-clock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: An external clock signal driven by a PWM pin.
+
+maintainers:
+ - Philipp Zabel <p.zabel@pengutronix.de>
+
+properties:
+ compatible:
+ const: pwm-clock
+
+ '#clock-cells':
+ const: 0
+
+ clock-frequency:
+ description: Exact output frequency, in case the PWM period is not exact
+ but was rounded to nanoseconds.
+
+ clock-output-names:
+ maxItems: 1
+
+ pwms:
+ maxItems: 1
+
+required:
+ - compatible
+ - '#clock-cells'
+ - pwms
+
+additionalProperties: false
+
+examples:
+ - |
+ clock {
+ compatible = "pwm-clock";
+ #clock-cells = <0>;
+ clock-frequency = <25000000>;
+ clock-output-names = "mipi_mclk";
+ pwms = <&pwm2 0 40>; /* 1 / 40 ns = 25 MHz */
+ };
+...