fsl,imx-gpcv2.yaml (3526B)
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,imx8mn-gpc 29 - fsl,imx8mq-gpc 30 - fsl,imx8mm-gpc 31 - fsl,imx8mp-gpc 32 33 reg: 34 maxItems: 1 35 36 interrupts: 37 maxItems: 1 38 39 interrupt-controller: true 40 '#interrupt-cells': 41 const: 3 42 43 pgc: 44 type: object 45 description: list of power domains provided by this controller. 46 47 patternProperties: 48 "power-domain@[0-9]$": 49 type: object 50 properties: 51 52 '#power-domain-cells': 53 const: 0 54 55 reg: 56 description: | 57 Power domain index. Valid values are defined in 58 include/dt-bindings/power/imx7-power.h for fsl,imx7d-gpc and 59 include/dt-bindings/power/imx8m-power.h for fsl,imx8mq-gpc 60 include/dt-bindings/power/imx8mm-power.h for fsl,imx8mm-gpc 61 include/dt-bindings/power/imx8mp-power.h for fsl,imx8mp-gpc 62 maxItems: 1 63 64 clocks: 65 description: | 66 A number of phandles to clocks that need to be enabled during domain 67 power-up sequencing to ensure reset propagation into devices located 68 inside this power domain. 69 minItems: 1 70 maxItems: 5 71 72 power-supply: true 73 74 resets: 75 description: | 76 A number of phandles to resets that need to be asserted during 77 power-up sequencing of the domain. The resets belong to devices 78 located inside the power domain, which need to be held in reset 79 across the power-up sequence. So no means to specify what each 80 reset is in a generic power-domain binding. 81 minItems: 1 82 maxItems: 4 83 84 required: 85 - '#power-domain-cells' 86 - reg 87 88required: 89 - compatible 90 - reg 91 - interrupts 92 - pgc 93 94additionalProperties: false 95 96examples: 97 - | 98 #include <dt-bindings/interrupt-controller/arm-gic.h> 99 100 gpc@303a0000 { 101 compatible = "fsl,imx7d-gpc"; 102 reg = <0x303a0000 0x1000>; 103 interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>; 104 105 pgc { 106 #address-cells = <1>; 107 #size-cells = <0>; 108 109 pgc_mipi_phy: power-domain@0 { 110 #power-domain-cells = <0>; 111 reg = <0>; 112 power-supply = <®_1p0d>; 113 }; 114 115 pgc_pcie_phy: power-domain@1 { 116 #power-domain-cells = <0>; 117 reg = <1>; 118 power-supply = <®_1p0d>; 119 }; 120 121 pgc_hsic_phy: power-domain@2 { 122 #power-domain-cells = <0>; 123 reg = <2>; 124 power-supply = <®_1p2>; 125 }; 126 }; 127 };