xref: /freebsd/sys/contrib/device-tree/Bindings/gpio/gpio-mxs.yaml (revision dd41de95a84d979615a2ef11df6850622bf6184e) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/gpio/gpio-mxs.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale MXS GPIO controller
8
9maintainers:
10  - Shawn Guo <shawnguo@kernel.org>
11  - Anson Huang <Anson.Huang@nxp.com>
12
13description: |
14  The Freescale MXS GPIO controller is part of MXS PIN controller.
15  The GPIOs are organized in port/bank, each port consists of 32 GPIOs.
16  As the GPIO controller is embedded in the PIN controller and all the
17  GPIO ports share the same IO space with PIN controller, the GPIO node
18  will be represented as sub-nodes of MXS pinctrl node.
19
20properties:
21  compatible:
22    enum:
23      - fsl,imx23-pinctrl
24      - fsl,imx28-pinctrl
25
26  '#address-cells':
27    const: 1
28  '#size-cells':
29    const: 0
30
31  reg:
32    maxItems: 1
33
34patternProperties:
35  "gpio@[0-9]+$":
36    type: object
37    properties:
38      compatible:
39        enum:
40          - fsl,imx23-gpio
41          - fsl,imx28-gpio
42
43      reg:
44        maxItems: 1
45
46      interrupts:
47        description: Should be the port interrupt shared by all 32 pins.
48        maxItems: 1
49
50      interrupt-controller: true
51
52      "#interrupt-cells":
53        const: 2
54
55      "#gpio-cells":
56        const: 2
57
58      gpio-controller: true
59
60    required:
61      - compatible
62      - reg
63      - interrupts
64      - interrupt-controller
65      - "#interrupt-cells"
66      - "#gpio-cells"
67      - gpio-controller
68
69    additionalProperties: false
70
71required:
72  - compatible
73  - reg
74  - '#address-cells'
75  - '#size-cells'
76
77additionalProperties: false
78
79examples:
80  - |
81    pinctrl@80018000 {
82        #address-cells = <1>;
83        #size-cells = <0>;
84        compatible = "fsl,imx28-pinctrl";
85        reg = <0x80018000 0x2000>;
86
87        gpio@0 {
88                compatible = "fsl,imx28-gpio";
89                reg = <0>;
90                interrupts = <127>;
91                gpio-controller;
92                #gpio-cells = <2>;
93                interrupt-controller;
94                #interrupt-cells = <2>;
95        };
96
97        gpio@1 {
98                compatible = "fsl,imx28-gpio";
99                reg = <1>;
100                interrupts = <126>;
101                gpio-controller;
102                #gpio-cells = <2>;
103                interrupt-controller;
104                #interrupt-cells = <2>;
105        };
106
107        gpio@2 {
108                compatible = "fsl,imx28-gpio";
109                reg = <2>;
110                interrupts = <125>;
111                gpio-controller;
112                #gpio-cells = <2>;
113                interrupt-controller;
114                #interrupt-cells = <2>;
115        };
116
117        gpio@3 {
118                compatible = "fsl,imx28-gpio";
119                reg = <3>;
120                interrupts = <124>;
121                gpio-controller;
122                #gpio-cells = <2>;
123                interrupt-controller;
124                #interrupt-cells = <2>;
125        };
126
127        gpio@4 {
128                compatible = "fsl,imx28-gpio";
129                reg = <4>;
130                interrupts = <123>;
131                gpio-controller;
132                #gpio-cells = <2>;
133                interrupt-controller;
134                #interrupt-cells = <2>;
135        };
136    };
137