1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/power/fsl,i 4 $id: http://devicetree.org/schemas/power/fsl,imx-gpcv2.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Freescale i.MX General Power Controller 7 title: Freescale i.MX General Power Controller v2
8 8
9 maintainers: 9 maintainers:
10 - Andrey Smirnov <andrew.smirnov@gmail.com> 10 - Andrey Smirnov <andrew.smirnov@gmail.com>
11 11
12 description: | 12 description: |
13 The i.MX7S/D General Power Control (GPC) blo 13 The i.MX7S/D General Power Control (GPC) block contains Power Gating
14 Control (PGC) for various power domains. 14 Control (PGC) for various power domains.
15 15
16 Power domains contained within GPC node are 16 Power domains contained within GPC node are generic power domain
17 providers, documented in 17 providers, documented in
18 Documentation/devicetree/bindings/power/powe 18 Documentation/devicetree/bindings/power/power-domain.yaml, which are
19 described as subnodes of the power gating co 19 described as subnodes of the power gating controller 'pgc' node.
20 20
21 IP cores belonging to a power domain should 21 IP cores belonging to a power domain should contain a 'power-domains'
22 property that is a phandle for PGC node repr 22 property that is a phandle for PGC node representing the domain.
23 23
24 properties: 24 properties:
25 compatible: 25 compatible:
26 enum: 26 enum:
27 - fsl,imx7d-gpc 27 - fsl,imx7d-gpc
28 - fsl,imx8mn-gpc <<
29 - fsl,imx8mq-gpc 28 - fsl,imx8mq-gpc
30 - fsl,imx8mm-gpc <<
31 - fsl,imx8mp-gpc <<
32 29
33 reg: 30 reg:
34 maxItems: 1 31 maxItems: 1
35 32
36 interrupts: 33 interrupts:
37 maxItems: 1 34 maxItems: 1
38 35
39 interrupt-controller: true <<
40 '#interrupt-cells': <<
41 const: 3 <<
42 <<
43 pgc: 36 pgc:
44 type: object 37 type: object
45 additionalProperties: false <<
46 description: list of power domains provide 38 description: list of power domains provided by this controller.
47 39
48 properties: <<
49 '#address-cells': <<
50 const: 1 <<
51 <<
52 '#size-cells': <<
53 const: 0 <<
54 <<
55 patternProperties: 40 patternProperties:
56 "power-domain@[0-9a-f]+$": !! 41 "power-domain@[0-9]$":
57 type: object 42 type: object
58 additionalProperties: false <<
59 <<
60 properties: 43 properties:
61 44
62 '#power-domain-cells': 45 '#power-domain-cells':
63 const: 0 46 const: 0
64 47
65 reg: 48 reg:
66 description: | 49 description: |
67 Power domain index. Valid values 50 Power domain index. Valid values are defined in
68 include/dt-bindings/power/imx7-p 51 include/dt-bindings/power/imx7-power.h for fsl,imx7d-gpc and
69 include/dt-bindings/power/imx8m- 52 include/dt-bindings/power/imx8m-power.h for fsl,imx8mq-gpc
70 include/dt-bindings/power/imx8mm <<
71 include/dt-bindings/power/imx8mp <<
72 maxItems: 1 53 maxItems: 1
73 54
74 clocks: 55 clocks:
75 description: | 56 description: |
76 A number of phandles to clocks t 57 A number of phandles to clocks that need to be enabled during domain
77 power-up sequencing to ensure re 58 power-up sequencing to ensure reset propagation into devices located
78 inside this power domain. 59 inside this power domain.
79 minItems: 1 60 minItems: 1
80 maxItems: 5 61 maxItems: 5
81 62
82 power-supply: true 63 power-supply: true
83 64
84 power-domains: <<
85 maxItems: 1 <<
86 <<
87 resets: <<
88 description: | <<
89 A number of phandles to resets t <<
90 power-up sequencing of the domai <<
91 located inside the power domain, <<
92 across the power-up sequence. So <<
93 reset is in a generic power-doma <<
94 minItems: 1 <<
95 maxItems: 4 <<
96 <<
97 required: 65 required:
98 - '#power-domain-cells' 66 - '#power-domain-cells'
99 - reg 67 - reg
100 <<
101 required: <<
102 - '#address-cells' <<
103 - '#size-cells' <<
104 68
105 required: 69 required:
106 - compatible 70 - compatible
107 - reg 71 - reg
108 - interrupts 72 - interrupts
109 - pgc 73 - pgc
110 74
111 additionalProperties: false 75 additionalProperties: false
112 76
113 examples: 77 examples:
114 - | 78 - |
115 #include <dt-bindings/interrupt-controller 79 #include <dt-bindings/interrupt-controller/arm-gic.h>
116 80
117 gpc@303a0000 { 81 gpc@303a0000 {
118 compatible = "fsl,imx7d-gpc"; 82 compatible = "fsl,imx7d-gpc";
119 reg = <0x303a0000 0x1000>; 83 reg = <0x303a0000 0x1000>;
120 interrupts = <GIC_SPI 87 IRQ_TYPE_LEVE 84 interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
121 85
122 pgc { 86 pgc {
123 #address-cells = <1>; 87 #address-cells = <1>;
124 #size-cells = <0>; 88 #size-cells = <0>;
125 89
126 pgc_mipi_phy: power-domain@0 { 90 pgc_mipi_phy: power-domain@0 {
127 #power-domain-cells = <0>; 91 #power-domain-cells = <0>;
128 reg = <0>; 92 reg = <0>;
129 power-supply = <®_1p0d>; 93 power-supply = <®_1p0d>;
130 }; 94 };
131 95
132 pgc_pcie_phy: power-domain@1 { 96 pgc_pcie_phy: power-domain@1 {
133 #power-domain-cells = <0>; 97 #power-domain-cells = <0>;
134 reg = <1>; 98 reg = <1>;
135 power-supply = <®_1p0d>; 99 power-supply = <®_1p0d>;
136 }; 100 };
137 101
138 pgc_hsic_phy: power-domain@2 { 102 pgc_hsic_phy: power-domain@2 {
139 #power-domain-cells = <0>; 103 #power-domain-cells = <0>;
140 reg = <2>; 104 reg = <2>;
141 power-supply = <®_1p2>; 105 power-supply = <®_1p2>;
142 }; 106 };
143 }; 107 };
144 }; 108 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.