Documentation/devicetree/bindings/power/reset/xlnx,zynqmp-power.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/reset/xlnx,zynqmp-power.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Xilinx Zynq MPSoC Power Management Device Tree Bindings

maintainers:
  - Michal Simek <michal.simek@xilinx.com>

description: |
  The zynqmp-power node describes the power management configurations.
  It will control remote suspend/shutdown interfaces.

properties:
  compatible:
    const: "xlnx,zynqmp-power"

  interrupts:
    maxItems: 1

  mboxes:
    description: |
      Standard property to specify a Mailbox. Each value of
      the mboxes property should contain a phandle to the
      mailbox controller device node and an args specifier
      that will be the phandle to the intended sub-mailbox
      child node to be used for communication. See
      Documentation/devicetree/bindings/mailbox/mailbox.txt
      for more details about the generic mailbox controller
      and client driver bindings. Also see
      Documentation/devicetree/bindings/mailbox/ \
      xlnx,zynqmp-ipi-mailbox.txt for typical controller that
      is used to communicate with this System controllers.
    items:
      - description: tx channel
      - description: rx channel

  mbox-names:
    description:
      Name given to channels seen in the 'mboxes' property.
    items:
      - const: tx
      - const: rx

required:
  - compatible
  - interrupts

additionalProperties: false

examples:
  - |+

    // Example with interrupt method:

    firmware {
      zynqmp-firmware {
        zynqmp-power {
          compatible = "xlnx,zynqmp-power";
          interrupts = <0 35 4>;
        };
      };
    };

  - |+

    // Example with IPI mailbox method:

    firmware {
      zynqmp-firmware {
        zynqmp-power {
          compatible = "xlnx,zynqmp-power";
          interrupt-parent = <&gic>;
          interrupts = <0 35 4>;
          mboxes = <&ipi_mailbox_pmu1 0>,
                   <&ipi_mailbox_pmu1 1>;
          mbox-names = "tx", "rx";
        };
      };
    };
...