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125 lines
3.3 KiB
125 lines
3.3 KiB
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/power/fsl,imx-gpcv2.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Freescale i.MX General Power Controller v2 |
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maintainers: |
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- Andrey Smirnov <[email protected]> |
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description: | |
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The i.MX7S/D General Power Control (GPC) block contains Power Gating |
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Control (PGC) for various power domains. |
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Power domains contained within GPC node are generic power domain |
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providers, documented in |
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Documentation/devicetree/bindings/power/power-domain.yaml, which are |
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described as subnodes of the power gating controller 'pgc' node. |
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IP cores belonging to a power domain should contain a 'power-domains' |
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property that is a phandle for PGC node representing the domain. |
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properties: |
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compatible: |
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enum: |
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- fsl,imx7d-gpc |
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- fsl,imx8mn-gpc |
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- fsl,imx8mq-gpc |
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- fsl,imx8mm-gpc |
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reg: |
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maxItems: 1 |
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interrupts: |
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maxItems: 1 |
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interrupt-controller: true |
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'#interrupt-cells': |
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const: 3 |
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pgc: |
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type: object |
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description: list of power domains provided by this controller. |
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patternProperties: |
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"power-domain@[0-9]$": |
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type: object |
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properties: |
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'#power-domain-cells': |
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const: 0 |
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reg: |
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description: | |
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Power domain index. Valid values are defined in |
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include/dt-bindings/power/imx7-power.h for fsl,imx7d-gpc and |
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include/dt-bindings/power/imx8m-power.h for fsl,imx8mq-gpc |
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include/dt-bindings/power/imx8mm-power.h for fsl,imx8mm-gpc |
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maxItems: 1 |
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clocks: |
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description: | |
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A number of phandles to clocks that need to be enabled during domain |
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power-up sequencing to ensure reset propagation into devices located |
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inside this power domain. |
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minItems: 1 |
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maxItems: 5 |
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power-supply: true |
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resets: |
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description: | |
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A number of phandles to resets that need to be asserted during |
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power-up sequencing of the domain. The resets belong to devices |
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located inside the power domain, which need to be held in reset |
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across the power-up sequence. So no means to specify what each |
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reset is in a generic power-domain binding. |
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minItems: 1 |
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maxItems: 4 |
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required: |
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- '#power-domain-cells' |
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- reg |
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required: |
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- compatible |
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- reg |
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- interrupts |
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- pgc |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/interrupt-controller/arm-gic.h> |
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gpc@303a0000 { |
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compatible = "fsl,imx7d-gpc"; |
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reg = <0x303a0000 0x1000>; |
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interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>; |
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pgc { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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pgc_mipi_phy: power-domain@0 { |
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#power-domain-cells = <0>; |
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reg = <0>; |
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power-supply = <®_1p0d>; |
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}; |
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pgc_pcie_phy: power-domain@1 { |
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#power-domain-cells = <0>; |
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reg = <1>; |
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power-supply = <®_1p0d>; |
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}; |
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pgc_hsic_phy: power-domain@2 { |
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#power-domain-cells = <0>; |
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reg = <2>; |
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power-supply = <®_1p2>; |
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}; |
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}; |
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};
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