xref: /freebsd/sys/contrib/device-tree/Bindings/mfd/delta,tn48m-cpld.yaml (revision e0c4386e7e71d93b0edc0c8fa156263fc4a8b0b6) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mfd/delta,tn48m-cpld.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Delta Networks TN48M CPLD controller
8
9maintainers:
10  - Robert Marko <robert.marko@sartura.hr>
11
12description: |
13  Lattice CPLD onboard the TN48M switches is used for system
14  management.
15
16  It provides information about the hardware model, revision,
17  PSU status etc.
18
19  It is also being used as a GPIO expander and reset controller
20  for the switch MAC-s and other peripherals.
21
22properties:
23  compatible:
24    const: delta,tn48m-cpld
25
26  reg:
27    description:
28      I2C device address.
29    maxItems: 1
30
31  "#address-cells":
32    const: 1
33
34  "#size-cells":
35    const: 0
36
37required:
38  - compatible
39  - reg
40  - "#address-cells"
41  - "#size-cells"
42
43patternProperties:
44  "^gpio(@[0-9a-f]+)?$":
45    $ref: ../gpio/delta,tn48m-gpio.yaml
46
47  "^reset-controller?$":
48    $ref: ../reset/delta,tn48m-reset.yaml
49
50additionalProperties: false
51
52examples:
53  - |
54    i2c {
55        #address-cells = <1>;
56        #size-cells = <0>;
57
58        cpld@41 {
59            compatible = "delta,tn48m-cpld";
60            reg = <0x41>;
61            #address-cells = <1>;
62            #size-cells = <0>;
63
64            gpio@31 {
65                compatible = "delta,tn48m-gpo";
66                reg = <0x31>;
67                gpio-controller;
68                #gpio-cells = <2>;
69            };
70
71            gpio@3a {
72                compatible = "delta,tn48m-gpi";
73                reg = <0x3a>;
74                gpio-controller;
75                #gpio-cells = <2>;
76            };
77
78            gpio@40 {
79                compatible = "delta,tn48m-gpi";
80                reg = <0x40>;
81                gpio-controller;
82                #gpio-cells = <2>;
83            };
84
85            reset-controller {
86              compatible = "delta,tn48m-reset";
87              #reset-cells = <1>;
88            };
89        };
90    };
91