xref: /linux/Documentation/devicetree/bindings/mailbox/sprd-mailbox.yaml (revision c17ee635fd3a482b2ad2bf5e269755c2eae5f25e) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mailbox/sprd-mailbox.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Spreadtrum mailbox controller
8
9maintainers:
10  - Orson Zhai <orsonzhai@gmail.com>
11  - Baolin Wang <baolin.wang7@gmail.com>
12  - Chunyan Zhang <zhang.lyra@gmail.com>
13
14properties:
15  compatible:
16    enum:
17      - sprd,sc9860-mailbox
18      - sprd,sc9863a-mailbox
19      - sprd,ums9230-mailbox
20
21  reg:
22    items:
23      - description: inbox registers' base address
24      - description: outbox registers' base address
25
26  interrupts:
27    minItems: 2
28    maxItems: 3
29
30  interrupt-names:
31    minItems: 2
32    items:
33      - const: inbox
34      - const: outbox
35      - const: supp-outbox
36
37  clocks:
38    maxItems: 1
39
40  clock-names:
41    items:
42      - const: enable
43
44  "#mbox-cells":
45    const: 1
46
47required:
48  - compatible
49  - reg
50  - interrupts
51  - interrupt-names
52  - "#mbox-cells"
53  - clocks
54  - clock-names
55
56additionalProperties: false
57
58examples:
59  - |
60    #include <dt-bindings/interrupt-controller/arm-gic.h>
61    mailbox: mailbox@400a0000 {
62      compatible = "sprd,sc9860-mailbox";
63      reg = <0x400a0000 0x8000>, <0x400a8000 0x8000>;
64      #mbox-cells = <1>;
65      clock-names = "enable";
66      clocks = <&aon_gate 53>;
67      interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>, <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
68      interrupt-names = "inbox", "outbox";
69    };
70...
71