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

description: |
  nRF LFCLK (Low Frequency CLocK)

  The LFCLK can use the following clocks as clock sources:

    - HFXO: The HFXO clock is used as a clock source if the
      LFCLK SYNTH mode is selected and the LFXO clock is not
      available. The HFXO clock is used indirectly through
      the FLL16M clock in BYPASS mode.

    - LFXO: The LFXO clock is used as a clock source if the
      LFCLK SYNTH mode is selected and the LFXO clock is
      available. The LFXO clock is used indirectly through
      the FLL16M clock in BYPASS mode.

  Devicetree example:

    lfclk {
            lfrc-accuracy-ppm = <500>;
            lflprc-accuracy-ppm = <1000>;
            clocks = <&hfxo>, <&lfxo>;
            clock-names = "hfxo", "lfxo";
    };

compatible: "nordic,nrf-lfclk"

include: fixed-clock.yaml

properties:
  clock-frequency:
    const: 32768

  lfrc-accuracy-ppm:
    type: int
    description: Clock accuracy in parts per million if LFRC clock source is used.

  lflprc-accuracy-ppm:
    type: int
    description: Clock accuracy in parts per million if LFLPRC clock source is used.