xref: /openbmc/linux/Documentation/devicetree/bindings/power/renesas,apmu.yaml (revision 3c75ce7c)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/renesas,apmu.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Renesas Advanced Power Management Unit

maintainers:
  - Geert Uytterhoeven <geert+renesas@glider.be>
  - Magnus Damm <magnus.damm@gmail.com>

description:
  Renesas R-Car Gen2 and RZ/G1 SoCs utilize one or more APMU hardware units for
  CPU core power domain control including SMP boot and CPU Hotplug.

properties:
  compatible:
    items:
      - enum:
          - renesas,r8a7742-apmu  # RZ/G1H
          - renesas,r8a7743-apmu  # RZ/G1M
          - renesas,r8a7744-apmu  # RZ/G1N
          - renesas,r8a7745-apmu  # RZ/G1E
          - renesas,r8a77470-apmu # RZ/G1C
          - renesas,r8a7790-apmu  # R-Car H2
          - renesas,r8a7791-apmu  # R-Car M2-W
          - renesas,r8a7792-apmu  # R-Car V2H
          - renesas,r8a7793-apmu  # R-Car M2-N
          - renesas,r8a7794-apmu  # R-Car E2
      - const: renesas,apmu

  reg:
    maxItems: 1

  cpus:
    minItems: 1
    maxItems: 4
    description: |
      Array of phandles pointing to CPU cores, which should match the order of
      CPU cores used by the WUPCR and PSTR registers in the Advanced Power
      Management Unit section of the device's datasheet.

required:
  - compatible
  - reg
  - cpus

additionalProperties: false

examples:
  - |
    apmu@e6152000 {
            compatible = "renesas,r8a7791-apmu", "renesas,apmu";
            reg = <0xe6152000 0x188>;
            cpus = <&cpu0>, <&cpu1>;
    };