dts/bindings/clock/nordic,nrf-auxpll.yaml

# Copyright (c) 2024 Nordic Semiconductor ASA
# SPDX-License-Identifier: Apache-2.0

description: |
  Nordic Auxiliary PLL (Phase Locked Loop)

  The output frequency (f_out) of the auxiliary PLL is calculated as follows:

    f_out = ((R + A * 2^(-16)) * f_src) / B

  where:

    - A: nordic,frequency
    - B: nordic,outdiv
    - R: nordic,range (3=low, 4=mid, 5=high, 6=statichigh)
    - f_src: Source frequency, given by clocks

compatible: "nordic,nrf-auxpll"

include:
  - base.yaml
  - clock-controller.yaml
  - nordic-nrf-ficr-client.yaml

properties:
  reg:
    required: true

  interrupts:
    required: true

  clocks:
    required: true

  "#clock-cells":
    const: 0

  nordic,ficrs:
    required: true

  nordic,frequency:
    type: int
    required: true
    description: |
      Value used to set the fractional PLL divider ratio (can be set between
      divider ratios 4 to 5). Valid values range from 0 to 65535.

  nordic,out-div:
    type: int
    enum:
      - 1
      - 2
      - 3
      - 4
      - 6
      - 8
      - 12
      - 16
    description: PLL output divider.

  nordic,out-drive:
    type: int
    required: true
    enum:
      - 0
      - 1
      - 2
      - 3
    description: Output buffer drive strength.

  nordic,current-tune:
    type: int
    required: true
    description: Constant current tune for the ring oscillator

  nordic,sdm-disable:
    type: boolean
    description: Disable sigma-delta modulator

  nordic,dither-disable:
    type: boolean
    description: Disable dither in sigma-delta modulator

  nordic,range:
    type: string
    required: true
    enum:
      - "low"
      - "mid"
      - "high"
      - "statichigh"
    description: PLL loop divider range