60 lines
1.9 KiB
YAML
60 lines
1.9 KiB
YAML
# 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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$id: http://devicetree.org/schemas/soc/ti/sci-pm-domain.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: TI-SCI generic power domain node bindings
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maintainers:
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- Nishanth Menon <nm@ti.com>
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allOf:
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- $ref: /schemas/power/power-domain.yaml#
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description: |
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Some TI SoCs contain a system controller (like the Power Management Micro
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Controller (PMMC) on Keystone 66AK2G SoC) that are responsible for controlling
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the state of the various hardware modules present on the SoC. Communication
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between the host processor running an OS and the system controller happens
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through a protocol called TI System Control Interface (TI-SCI protocol).
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This PM domain node represents the global PM domain managed by the TI-SCI
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controller. Since this relies on the TI SCI protocol to communicate with
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the TI-SCI controller, it must be a child of the TI-SCI controller node.
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properties:
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compatible:
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const: ti,sci-pm-domain
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"#power-domain-cells":
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enum: [1, 2]
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description:
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The two cells represent values that the TI-SCI controller defines.
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The first cell should contain the device ID.
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The second cell, if cell-value is 2, should be one of the following
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TI_SCI_PD_EXCLUSIVE - Allows the device to be exclusively controlled
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or
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TI_SCI_PD_SHARED - Allows the device to be shared by multiple hosts.
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Please refer to dt-bindings/soc/ti,sci_pm_domain.h for the definitions.
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Please see http://processors.wiki.ti.com/index.php/TISCI for
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protocol documentation for the values to be used for different devices.
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additionalProperties: false
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examples:
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- |
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k2g_pds: power-controller {
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compatible = "ti,sci-pm-domain";
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#power-domain-cells = <1>;
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};
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- |
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k3_pds: power-controller {
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compatible = "ti,sci-pm-domain";
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#power-domain-cells = <2>;
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};
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