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26 lines
862 B
26 lines
862 B
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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};
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