46421d9d8e
We need to increase the pwm-cells for the optional flags parameter, before we can implement support for polarity setting via DT. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
31 lines
728 B
Plaintext
31 lines
728 B
Plaintext
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.txt 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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