c66ec88fed
git-subtree-dir: sys/contrib/device-tree git-subtree-mainline: 94611a838866cba8d7366a3107724af98c75e953 git-subtree-split: 5ee353c36d3c9c7f63df7c7671875e73fba70958
31 lines
823 B
Plaintext
31 lines
823 B
Plaintext
Marvell PWM controller
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Required properties:
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- compatible: should be one or more of:
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- "marvell,pxa250-pwm"
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- "marvell,pxa270-pwm"
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- "marvell,pxa168-pwm"
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- "marvell,pxa910-pwm"
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- reg: Physical base address and length of the registers used by the PWM channel
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Note that one device instance must be created for each PWM that is used, so the
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length covers only the register window for one PWM output, not that of the
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entire PWM controller. Currently length is 0x10 for all supported devices.
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- #pwm-cells: Should be 1. This cell is used to specify the period in
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nanoseconds.
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Example PWM device node:
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pwm0: pwm@40b00000 {
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compatible = "marvell,pxa250-pwm";
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reg = <0x40b00000 0x10>;
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#pwm-cells = <1>;
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};
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Example PWM client node:
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backlight {
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compatible = "pwm-backlight";
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pwms = <&pwm0 5000000>;
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...
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}
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