Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml

   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 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Freescale i.MX General Power Controller v2
   8
   9 maintainers:
  10   - Andrey Smirnov <andrew.smirnov@gmail.com>
  11
  12 description: |
  13   The i.MX7S/D General Power Control (GPC) block contains Power Gating
  14   Control (PGC) for various power domains.
  15
  16   Power domains contained within GPC node are generic power domain
  17   providers, documented in
  18   Documentation/devicetree/bindings/power/power-domain.yaml, which are
  19   described as subnodes of the power gating controller 'pgc' node.
  20
  21   IP cores belonging to a power domain should contain a 'power-domains'
  22   property that is a phandle for PGC node representing the domain.
  23
  24 properties:
  25   compatible:
  26     enum:
  27       - fsl,imx7d-gpc
  28       - fsl,imx8mq-gpc
  29
  30   reg:
  31     maxItems: 1
  32
  33   interrupts:
  34     maxItems: 1
  35
  36   interrupt-controller: true
  37   '#interrupt-cells':
  38     const: 3
  39
  40   pgc:
  41     type: object
  42     description: list of power domains provided by this controller.
  43
  44     patternProperties:
  45       "power-domain@[0-9]$":
  46         type: object
  47         properties:
  48
  49           '#power-domain-cells':
  50             const: 0
  51
  52           reg:
  53             description: |
  54               Power domain index. Valid values are defined in
  55               include/dt-bindings/power/imx7-power.h for fsl,imx7d-gpc and
  56               include/dt-bindings/power/imx8m-power.h for fsl,imx8mq-gpc
  57             maxItems: 1
  58
  59           clocks:
  60             description: |
  61               A number of phandles to clocks that need to be enabled during domain
  62               power-up sequencing to ensure reset propagation into devices located
  63               inside this power domain.
  64             minItems: 1
  65             maxItems: 5
  66
  67           power-supply: true
  68
  69         required:
  70           - '#power-domain-cells'
  71           - reg
  72
  73 required:
  74   - compatible
  75   - reg
  76   - interrupts
  77   - pgc
  78
  79 additionalProperties: false
  80
  81 examples:
  82   - |
  83     #include <dt-bindings/interrupt-controller/arm-gic.h>
  84
  85     gpc@303a0000 {
  86         compatible = "fsl,imx7d-gpc";
  87         reg = <0x303a0000 0x1000>;
  88         interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
  89
  90         pgc {
  91             #address-cells = <1>;
  92             #size-cells = <0>;
  93
  94             pgc_mipi_phy: power-domain@0 {
  95                 #power-domain-cells = <0>;
  96                 reg = <0>;
  97                 power-supply = <&reg_1p0d>;
  98             };
  99
 100             pgc_pcie_phy: power-domain@1 {
 101                 #power-domain-cells = <0>;
 102                 reg = <1>;
 103                 power-supply = <&reg_1p0d>;
 104             };
 105
 106             pgc_hsic_phy: power-domain@2 {
 107                 #power-domain-cells = <0>;
 108                 reg = <2>;
 109                 power-supply = <&reg_1p2>;
 110             };
 111         };
 112     };