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30 lines
729 B
30 lines
729 B
BCM2835 PWM controller (Raspberry Pi controller) |
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Required properties: |
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- compatible: should be "brcm,bcm2835-pwm" |
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- reg: physical base address and length of the controller's registers |
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- clocks: This clock defines the base clock frequency of the PWM hardware |
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system, the period and the duty_cycle of the PWM signal is a multiple of |
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the base period. |
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- #pwm-cells: Should be 3. See pwm.yaml in this directory for a description of |
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the cells format. |
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Examples: |
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pwm@2020c000 { |
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compatible = "brcm,bcm2835-pwm"; |
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reg = <0x2020c000 0x28>; |
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clocks = <&clk_pwm>; |
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#pwm-cells = <3>; |
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}; |
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clocks { |
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.... |
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clk_pwm: pwm { |
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compatible = "fixed-clock"; |
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reg = <3>; |
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#clock-cells = <0>; |
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clock-frequency = <9200000>; |
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}; |
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.... |
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};
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