xref: /linux/Documentation/devicetree/bindings/gpio/aspeed,ast2400-gpio.yaml (revision ef9226cd56b718c79184a3466d32984a51cb449c) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/gpio/aspeed,ast2400-gpio.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Aspeed GPIO controller
8
9maintainers:
10  - Andrew Jeffery <andrew@codeconstruct.com.au>
11
12properties:
13  compatible:
14    enum:
15      - aspeed,ast2400-gpio
16      - aspeed,ast2500-gpio
17      - aspeed,ast2600-gpio
18
19  reg:
20    maxItems: 1
21
22  clocks:
23    maxItems: 1
24    description: The clock to use for debounce timings
25
26  gpio-controller: true
27  gpio-line-names:
28    minItems: 36
29    maxItems: 232
30
31  gpio-ranges: true
32
33  "#gpio-cells":
34    const: 2
35
36  interrupts:
37    maxItems: 1
38
39  interrupt-controller: true
40
41  "#interrupt-cells":
42    const: 2
43
44  ngpios:
45    minimum: 36
46    maximum: 232
47
48required:
49  - compatible
50  - reg
51  - interrupts
52  - interrupt-controller
53  - "#interrupt-cells"
54  - gpio-controller
55  - "#gpio-cells"
56
57allOf:
58  - if:
59      properties:
60        compatible:
61          contains:
62            const: aspeed,ast2400-gpio
63    then:
64      properties:
65        gpio-line-names:
66          minItems: 220
67          maxItems: 220
68        ngpios:
69          const: 220
70  - if:
71      properties:
72        compatible:
73          contains:
74            const: aspeed,ast2500-gpio
75    then:
76      properties:
77        gpio-line-names:
78          minItems: 232
79          maxItems: 232
80        ngpios:
81          const: 232
82  - if:
83      properties:
84        compatible:
85          contains:
86            const: aspeed,ast2600-gpio
87    then:
88      properties:
89        gpio-line-names:
90          minItems: 36
91          maxItems: 208
92        ngpios:
93          enum: [ 36, 208 ]
94      required:
95        - ngpios
96
97additionalProperties: false
98
99examples:
100  - |
101    gpio@1e780000 {
102        compatible = "aspeed,ast2400-gpio";
103        reg = <0x1e780000 0x1000>;
104        interrupts = <20>;
105        interrupt-controller;
106        #interrupt-cells = <2>;
107        gpio-controller;
108        #gpio-cells = <2>;
109    };
110  - |
111    gpio: gpio@1e780000 {
112        compatible = "aspeed,ast2500-gpio";
113        reg = <0x1e780000 0x200>;
114        interrupts = <20>;
115        interrupt-controller;
116        #interrupt-cells = <2>;
117        gpio-controller;
118        #gpio-cells = <2>;
119        gpio-ranges = <&pinctrl 0 0 232>;
120    };
121  - |
122    #include <dt-bindings/clock/ast2600-clock.h>
123    #include <dt-bindings/interrupt-controller/arm-gic.h>
124    #include <dt-bindings/interrupt-controller/irq.h>
125    gpio0: gpio@1e780000 {
126        compatible = "aspeed,ast2600-gpio";
127        reg = <0x1e780000 0x400>;
128        clocks = <&syscon ASPEED_CLK_APB2>;
129        interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
130        interrupt-controller;
131        #interrupt-cells = <2>;
132        #gpio-cells = <2>;
133        gpio-controller;
134        gpio-ranges = <&pinctrl 0 0 208>;
135        ngpios = <208>;
136    };
137    gpio1: gpio@1e780800 {
138        compatible = "aspeed,ast2600-gpio";
139        reg = <0x1e780800 0x800>;
140        clocks = <&syscon ASPEED_CLK_APB1>;
141        interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
142        interrupt-controller;
143        #interrupt-cells = <2>;
144        gpio-controller;
145        #gpio-cells = <2>;
146        gpio-ranges = <&pinctrl 0 208 36>;
147        ngpios = <36>;
148    };
149