xref: /linux/Documentation/devicetree/bindings/power/renesas,apmu.yaml (revision 53aa930dc4bae6aa269951bd37103083145d6691) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/power/renesas,apmu.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Renesas Advanced Power Management Unit
8
9maintainers:
10  - Geert Uytterhoeven <geert+renesas@glider.be>
11  - Magnus Damm <magnus.damm@gmail.com>
12
13description:
14  Renesas R-Car Gen2 and RZ/G1 SoCs utilize one or more APMU hardware units for
15  CPU core power domain control including SMP boot and CPU Hotplug.
16
17properties:
18  compatible:
19    items:
20      - enum:
21          - renesas,r8a7742-apmu  # RZ/G1H
22          - renesas,r8a7743-apmu  # RZ/G1M
23          - renesas,r8a7744-apmu  # RZ/G1N
24          - renesas,r8a7745-apmu  # RZ/G1E
25          - renesas,r8a77470-apmu # RZ/G1C
26          - renesas,r8a7790-apmu  # R-Car H2
27          - renesas,r8a7791-apmu  # R-Car M2-W
28          - renesas,r8a7792-apmu  # R-Car V2H
29          - renesas,r8a7793-apmu  # R-Car M2-N
30          - renesas,r8a7794-apmu  # R-Car E2
31      - const: renesas,apmu
32
33  reg:
34    maxItems: 1
35
36  cpus:
37    $ref: /schemas/types.yaml#/definitions/phandle-array
38    items:
39      minItems: 1
40      maxItems: 4
41    description: |
42      Array of phandles pointing to CPU cores, which should match the order of
43      CPU cores used by the WUPCR and PSTR registers in the Advanced Power
44      Management Unit section of the device's datasheet.
45
46required:
47  - compatible
48  - reg
49  - cpus
50
51additionalProperties: false
52
53examples:
54  - |
55    apmu@e6152000 {
56            compatible = "renesas,r8a7791-apmu", "renesas,apmu";
57            reg = <0xe6152000 0x188>;
58            cpus = <&cpu0>, <&cpu1>;
59    };
60