diff options
-rw-r--r-- | Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt | 77 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml | 108 |
2 files changed, 108 insertions, 77 deletions
diff --git a/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt b/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt deleted file mode 100644 index 61649202f6f5..000000000000 --- a/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.txt +++ /dev/null @@ -1,77 +0,0 @@ -Freescale i.MX General Power Controller v2 -========================================== - -The i.MX7S/D General Power Control (GPC) block contains Power Gating -Control (PGC) for various power domains. - -Required properties: - -- compatible: Should be one of: - - "fsl,imx7d-gpc" - - "fsl,imx8mq-gpc" - -- reg: should be register base and length as documented in the - datasheet - -- interrupts: Should contain GPC interrupt request 1 - -Power domains contained within GPC node are generic power domain -providers, documented in -Documentation/devicetree/bindings/power/power-domain.yaml, which are -described as subnodes of the power gating controller 'pgc' node, -which, in turn, is expected to contain the following: - -Required properties: - -- reg: Power domain index. Valid values are defined in - include/dt-bindings/power/imx7-power.h for fsl,imx7d-gpc and - include/dt-bindings/power/imx8m-power.h for fsl,imx8mq-gpc - -- #power-domain-cells: Should be 0 - -Optional properties: - -- power-supply: Power supply used to power the domain -- clocks: a number of phandles to clocks that need to be enabled during - domain power-up sequencing to ensure reset propagation into devices - located inside this power domain - -Example: - - gpc: gpc@303a0000 { - compatible = "fsl,imx7d-gpc"; - reg = <0x303a0000 0x1000>; - interrupt-controller; - interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>; - #interrupt-cells = <3>; - interrupt-parent = <&intc>; - - pgc { - #address-cells = <1>; - #size-cells = <0>; - - pgc_pcie_phy: power-domain@1 { - #power-domain-cells = <0>; - - reg = <1>; - power-supply = <®_1p0d>; - }; - }; - }; - - -Specifying power domain for IP modules -====================================== - -IP cores belonging to a power domain should contain a 'power-domains' -property that is a phandle for PGC node representing the domain. - -Example of a device that is part of the PCIE_PHY power domain: - - pcie: pcie@33800000 { - reg = <0x33800000 0x4000>, - <0x4ff00000 0x80000>; - /* ... */ - power-domains = <&pgc_pcie_phy>; - /* ... */ - }; diff --git a/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml b/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml new file mode 100644 index 000000000000..bde09a0b2da3 --- /dev/null +++ b/Documentation/devicetree/bindings/power/fsl,imx-gpcv2.yaml @@ -0,0 +1,108 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/power/fsl,imx-gpcv2.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale i.MX General Power Controller v2 + +maintainers: + - Andrey Smirnov <andrew.smirnov@gmail.com> + +description: | + The i.MX7S/D General Power Control (GPC) block contains Power Gating + Control (PGC) for various power domains. + + Power domains contained within GPC node are generic power domain + providers, documented in + Documentation/devicetree/bindings/power/power-domain.yaml, which are + described as subnodes of the power gating controller 'pgc' node. + + IP cores belonging to a power domain should contain a 'power-domains' + property that is a phandle for PGC node representing the domain. + +properties: + compatible: + enum: + - fsl,imx7d-gpc + - fsl,imx8mq-gpc + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + pgc: + type: object + description: list of power domains provided by this controller. + + patternProperties: + "power-domain@[0-9]$": + type: object + properties: + + '#power-domain-cells': + const: 0 + + reg: + description: | + Power domain index. Valid values are defined in + include/dt-bindings/power/imx7-power.h for fsl,imx7d-gpc and + include/dt-bindings/power/imx8m-power.h for fsl,imx8mq-gpc + maxItems: 1 + + clocks: + description: | + A number of phandles to clocks that need to be enabled during domain + power-up sequencing to ensure reset propagation into devices located + inside this power domain. + minItems: 1 + maxItems: 5 + + power-supply: true + + required: + - '#power-domain-cells' + - reg + +required: + - compatible + - reg + - interrupts + - pgc + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + + gpc@303a0000 { + compatible = "fsl,imx7d-gpc"; + reg = <0x303a0000 0x1000>; + interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>; + + pgc { + #address-cells = <1>; + #size-cells = <0>; + + pgc_mipi_phy: power-domain@0 { + #power-domain-cells = <0>; + reg = <0>; + power-supply = <®_1p0d>; + }; + + pgc_pcie_phy: power-domain@1 { + #power-domain-cells = <0>; + reg = <1>; + power-supply = <®_1p0d>; + }; + + pgc_hsic_phy: power-domain@2 { + #power-domain-cells = <0>; + reg = <2>; + power-supply = <®_1p2>; + }; + }; + }; |