xref: /linux/Documentation/devicetree/bindings/mfd/kontron,sl28cpld.yaml (revision 36ec807b627b4c0a0a382f0ae48eac7187d14b2b) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/mfd/kontron,sl28cpld.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Kontron's sl28cpld board management controller
8
9maintainers:
10  - Michael Walle <michael@walle.cc>
11
12description: |
13  The board management controller may contain different IP blocks like
14  watchdog, fan monitoring, PWM controller, interrupt controller and a
15  GPIO controller.
16
17properties:
18  compatible:
19    const: kontron,sl28cpld
20
21  reg:
22    description:
23      I2C device address.
24    maxItems: 1
25
26  "#address-cells":
27    const: 1
28
29  "#size-cells":
30    const: 0
31
32  "#interrupt-cells":
33    const: 2
34
35  interrupts:
36    maxItems: 1
37
38  interrupt-controller: true
39
40patternProperties:
41  "^gpio(@[0-9a-f]+)?$":
42    $ref: /schemas/gpio/kontron,sl28cpld-gpio.yaml
43
44  "^hwmon(@[0-9a-f]+)?$":
45    $ref: /schemas/hwmon/kontron,sl28cpld-hwmon.yaml
46
47  "^interrupt-controller(@[0-9a-f]+)?$":
48    $ref: /schemas/interrupt-controller/kontron,sl28cpld-intc.yaml
49
50  "^pwm(@[0-9a-f]+)?$":
51    $ref: /schemas/pwm/kontron,sl28cpld-pwm.yaml
52
53  "^watchdog(@[0-9a-f]+)?$":
54    $ref: /schemas/watchdog/kontron,sl28cpld-wdt.yaml
55
56required:
57  - "#address-cells"
58  - "#size-cells"
59  - compatible
60  - reg
61
62additionalProperties: false
63
64examples:
65  - |
66    #include <dt-bindings/interrupt-controller/irq.h>
67    i2c {
68        #address-cells = <1>;
69        #size-cells = <0>;
70
71        sl28cpld@4a {
72            compatible = "kontron,sl28cpld";
73            reg = <0x4a>;
74            #address-cells = <1>;
75            #size-cells = <0>;
76
77            watchdog@4 {
78                compatible = "kontron,sl28cpld-wdt";
79                reg = <0x4>;
80                kontron,assert-wdt-timeout-pin;
81            };
82
83            hwmon@b {
84                compatible = "kontron,sl28cpld-fan";
85                reg = <0xb>;
86            };
87
88            pwm@c {
89                compatible = "kontron,sl28cpld-pwm";
90                reg = <0xc>;
91                #pwm-cells = <2>;
92            };
93
94            pwm@e {
95                compatible = "kontron,sl28cpld-pwm";
96                reg = <0xe>;
97                #pwm-cells = <2>;
98            };
99
100            gpio@10 {
101                compatible = "kontron,sl28cpld-gpio";
102                reg = <0x10>;
103                interrupts-extended = <&gpio2 6
104                               IRQ_TYPE_EDGE_FALLING>;
105
106                gpio-controller;
107                #gpio-cells = <2>;
108                gpio-line-names = "a", "b", "c";
109
110                interrupt-controller;
111                #interrupt-cells = <2>;
112            };
113
114            gpio@15 {
115                compatible = "kontron,sl28cpld-gpio";
116                reg = <0x15>;
117                interrupts-extended = <&gpio2 6
118                               IRQ_TYPE_EDGE_FALLING>;
119
120                gpio-controller;
121                #gpio-cells = <2>;
122
123                interrupt-controller;
124                #interrupt-cells = <2>;
125            };
126
127            gpio@1a {
128                compatible = "kontron,sl28cpld-gpo";
129                reg = <0x1a>;
130
131                gpio-controller;
132                #gpio-cells = <2>;
133            };
134
135            gpio@1b {
136                compatible = "kontron,sl28cpld-gpi";
137                reg = <0x1b>;
138
139                gpio-controller;
140                #gpio-cells = <2>;
141            };
142
143            interrupt-controller@1c {
144                compatible = "kontron,sl28cpld-intc";
145                reg = <0x1c>;
146                interrupts-extended = <&gpio2 6
147                               IRQ_TYPE_EDGE_FALLING>;
148
149                interrupt-controller;
150                #interrupt-cells = <2>;
151            };
152        };
153    };
154