1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/power/reset/xlnx,zynqmp-power.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Xilinx Zynq MPSoC Power Management
8
9 maintainers:
10 - Michal Simek <michal.simek@amd.com>
11
12 description: |
13 The zynqmp-power node describes the power management configurations.
14 It will control remote suspend/shutdown interfaces.
15
16 properties:
17 compatible:
18 const: xlnx,zynqmp-power
19
20 interrupts:
21 maxItems: 1
22
23 mboxes:
24 description: |
25 Standard property to specify a Mailbox. Each value of
26 the mboxes property should contain a phandle to the
27 mailbox controller device node and an args specifier
28 that will be the phandle to the intended sub-mailbox
29 child node to be used for communication. See
30 Documentation/devicetree/bindings/mailbox/mailbox.txt
31 for more details about the generic mailbox controller
32 and client driver bindings. Also see
33 Documentation/devicetree/bindings/mailbox/ \
34 xlnx,zynqmp-ipi-mailbox.txt for typical controller that
35 is used to communicate with this System controllers.
36 items:
37 - description: tx channel
38 - description: rx channel
39
40 mbox-names:
41 description:
42 Name given to channels seen in the 'mboxes' property.
43 items:
44 - const: tx
45 - const: rx
46
47 required:
48 - compatible
49 - interrupts
50
51 additionalProperties: false
52
53 examples:
54 - |+
55
56 // Example with interrupt method:
57
58 firmware {
59 zynqmp-firmware {
60 power-management {
61 compatible = "xlnx,zynqmp-power";
62 interrupts = <0 35 4>;
63 };
64 };
65 };
66
67 - |+
68
69 // Example with IPI mailbox method:
70
71 firmware {
72 zynqmp-firmware {
73 power-management {
74 compatible = "xlnx,zynqmp-power";
75 interrupt-parent = <&gic>;
76 interrupts = <0 35 4>;
77 mboxes = <&ipi_mailbox_pmu1 0>,
78 <&ipi_mailbox_pmu1 1>;
79 mbox-names = "tx", "rx";
80 };
81 };
82 };
83 ...
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