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100 lines
2.3 KiB
100 lines
2.3 KiB
# Copyright (c) 2022, Joep Buruma |
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# SPDX-License-Identifier: Apache-2.0 |
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description: Raspberry Pi Pico PWM |
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compatible: "raspberrypi,pico-pwm" |
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include: [pwm-controller.yaml, pinctrl-device.yaml, reset-device.yaml, base.yaml] |
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properties: |
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reg: |
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required: true |
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interrupts: |
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required: true |
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divider-int-0: |
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type: int |
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description: | |
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The integral part of the divider for pwm slice 0. |
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If a value between 1 and 255 is set, it will be set to the register |
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as the integer part of the divider. |
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If the value is set to 0 or this property is not defined when setting |
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the number of cycles to PWM, a division ratio appropriate to that value is set. |
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divider-frac-0: |
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type: int |
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description: | |
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The fractional part of the divider for pwm slice 0. |
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This number should be in the range 0 - 15. |
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When the "divider-int-0" is set to 0 or is not defined, this property will be |
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ignored. |
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divider-int-1: |
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type: int |
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description: See divider-int-0 for help |
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divider-frac-1: |
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type: int |
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description: See divider-frac-0 for help |
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divider-int-2: |
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type: int |
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description: See divider-int-0 for help |
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divider-frac-2: |
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type: int |
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description: See divider-frac-0 for help |
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divider-int-3: |
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type: int |
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description: See divider-int-0 for help |
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divider-frac-3: |
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type: int |
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description: See divider-frac-0 for help |
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divider-int-4: |
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type: int |
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description: See divider-int-0 for help |
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divider-frac-4: |
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type: int |
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description: See divider-frac-0 for help |
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divider-int-5: |
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type: int |
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description: See divider-int-0 for help |
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divider-frac-5: |
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type: int |
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description: See divider-frac-0 for help |
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divider-int-6: |
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type: int |
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description: See divider-int-0 for help |
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divider-frac-6: |
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type: int |
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description: See divider-frac-0 for help |
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divider-int-7: |
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type: int |
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description: See divider-int-0 for help |
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divider-frac-7: |
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type: int |
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description: See divider-frac-0 for help |
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"#pwm-cells": |
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const: 3 |
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pwm-cells: |
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# The rpi pico pwm peripheral is divided in 8 slices with an individual |
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# clock setting and two output channels. The pwm channels are mapped the |
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# following way PWM_CH0_A is addressed as <&pwm 0 PWM_FLAGS>, PWM_CH0B |
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# is <&pwm 1 PMW_FLAGS>, PWM_CH1_A si <&pwm 2 PWM_FLAGS> and so on. |
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- channel |
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- period |
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- flags
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