Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
dt-bindings: clock: Convert pwm-clock to DT schema
Convert the pwm-clock binding to DT schema format. A straight-forward
conversion.
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20221011162919.3025038-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
+45
-26
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Documentation/devicetree/bindings/clock/pwm-clock.txt
-26
Documentation/devicetree/bindings/clock/pwm-clock.txt
···
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Binding for an external clock signal driven by a PWM pin.
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This binding uses the common clock binding[1] and the common PWM binding[2].
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[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
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[2] Documentation/devicetree/bindings/pwm/pwm.txt
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Required properties:
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- compatible : shall be "pwm-clock".
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- #clock-cells : from common clock binding; shall be set to 0.
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- pwms : from common PWM binding; this determines the clock frequency
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via the period given in the PWM specifier.
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Optional properties:
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- clock-output-names : From common clock binding.
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- clock-frequency : Exact output frequency, in case the PWM period
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is not exact but was rounded to nanoseconds.
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Example:
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clock {
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compatible = "pwm-clock";
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#clock-cells = <0>;
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clock-frequency = <25000000>;
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clock-output-names = "mipi_mclk";
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pwms = <&pwm2 0 40>; /* 1 / 40 ns = 25 MHz */
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};
+45
Documentation/devicetree/bindings/clock/pwm-clock.yaml
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Documentation/devicetree/bindings/clock/pwm-clock.yaml
···
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# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/clock/pwm-clock.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: An external clock signal driven by a PWM pin.
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maintainers:
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- Philipp Zabel <p.zabel@pengutronix.de>
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properties:
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compatible:
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const: pwm-clock
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'#clock-cells':
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const: 0
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clock-frequency:
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description: Exact output frequency, in case the PWM period is not exact
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but was rounded to nanoseconds.
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clock-output-names:
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maxItems: 1
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pwms:
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maxItems: 1
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required:
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- compatible
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- '#clock-cells'
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- pwms
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additionalProperties: false
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examples:
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- |
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clock {
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compatible = "pwm-clock";
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#clock-cells = <0>;
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clock-frequency = <25000000>;
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clock-output-names = "mipi_mclk";
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pwms = <&pwm2 0 40>; /* 1 / 40 ns = 25 MHz */
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};
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...