xref: /freebsd/sys/contrib/device-tree/Bindings/power/fsl,imx-gpcv2.yaml (revision cfd6422a5217410fbd66f7a7a8a64d9d85e61229) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/power/fsl,imx-gpcv2.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale i.MX General Power Controller v2
8
9maintainers:
10  - Andrey Smirnov <andrew.smirnov@gmail.com>
11
12description: |
13  The i.MX7S/D General Power Control (GPC) block contains Power Gating
14  Control (PGC) for various power domains.
15
16  Power domains contained within GPC node are generic power domain
17  providers, documented in
18  Documentation/devicetree/bindings/power/power-domain.yaml, which are
19  described as subnodes of the power gating controller 'pgc' node.
20
21  IP cores belonging to a power domain should contain a 'power-domains'
22  property that is a phandle for PGC node representing the domain.
23
24properties:
25  compatible:
26    enum:
27      - fsl,imx7d-gpc
28      - fsl,imx8mq-gpc
29
30  reg:
31    maxItems: 1
32
33  interrupts:
34    maxItems: 1
35
36  pgc:
37    type: object
38    description: list of power domains provided by this controller.
39
40    patternProperties:
41      "power-domain@[0-9]$":
42        type: object
43        properties:
44
45          '#power-domain-cells':
46            const: 0
47
48          reg:
49            description: |
50              Power domain index. Valid values are defined in
51              include/dt-bindings/power/imx7-power.h for fsl,imx7d-gpc and
52              include/dt-bindings/power/imx8m-power.h for fsl,imx8mq-gpc
53            maxItems: 1
54
55          clocks:
56            description: |
57              A number of phandles to clocks that need to be enabled during domain
58              power-up sequencing to ensure reset propagation into devices located
59              inside this power domain.
60            minItems: 1
61            maxItems: 5
62
63          power-supply: true
64
65        required:
66          - '#power-domain-cells'
67          - reg
68
69required:
70  - compatible
71  - reg
72  - interrupts
73  - pgc
74
75additionalProperties: false
76
77examples:
78  - |
79    #include <dt-bindings/interrupt-controller/arm-gic.h>
80
81    gpc@303a0000 {
82        compatible = "fsl,imx7d-gpc";
83        reg = <0x303a0000 0x1000>;
84        interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
85
86        pgc {
87            #address-cells = <1>;
88            #size-cells = <0>;
89
90            pgc_mipi_phy: power-domain@0 {
91                #power-domain-cells = <0>;
92                reg = <0>;
93                power-supply = <&reg_1p0d>;
94            };
95
96            pgc_pcie_phy: power-domain@1 {
97                #power-domain-cells = <0>;
98                reg = <1>;
99                power-supply = <&reg_1p0d>;
100            };
101
102            pgc_hsic_phy: power-domain@2 {
103                #power-domain-cells = <0>;
104                reg = <2>;
105                power-supply = <&reg_1p2>;
106            };
107        };
108    };
109