xref: /linux/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml (revision 1ac731c529cd4d6adbce134754b51ff7d822b145) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pinctrl/apple,pinctrl.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Apple GPIO controller
8
9maintainers:
10  - Mark Kettenis <kettenis@openbsd.org>
11
12description: |
13  The Apple GPIO controller is a simple combined pin and GPIO
14  controller present on Apple ARM SoC platforms, including various
15  iPhone and iPad devices and the "Apple Silicon" Macs.
16
17properties:
18  compatible:
19    items:
20      - enum:
21          - apple,t8103-pinctrl
22          - apple,t8112-pinctrl
23          - apple,t6000-pinctrl
24      - const: apple,pinctrl
25
26  reg:
27    maxItems: 1
28
29  clocks:
30    maxItems: 1
31
32  gpio-controller: true
33
34  '#gpio-cells':
35    const: 2
36
37  gpio-ranges:
38    maxItems: 1
39
40  apple,npins:
41    $ref: /schemas/types.yaml#/definitions/uint32
42    description: The number of pins in this GPIO controller.
43
44  interrupts:
45    description: One interrupt for each of the (up to 7) interrupt
46      groups supported by the controller sorted by interrupt group
47      number in ascending order.
48    minItems: 1
49    maxItems: 7
50
51  interrupt-controller: true
52
53  '#interrupt-cells':
54    const: 2
55
56  power-domains:
57    maxItems: 1
58
59patternProperties:
60  '-pins$':
61    type: object
62    $ref: pinmux-node.yaml#
63
64    properties:
65      pinmux:
66        description:
67          Values are constructed from pin number and alternate function
68          configuration number using the APPLE_PINMUX() helper macro
69          defined in include/dt-bindings/pinctrl/apple.h.
70
71    required:
72      - pinmux
73
74    additionalProperties: false
75
76allOf:
77  - $ref: pinctrl.yaml#
78
79required:
80  - compatible
81  - reg
82  - gpio-controller
83  - '#gpio-cells'
84  - gpio-ranges
85  - apple,npins
86
87additionalProperties: false
88
89examples:
90  - |
91    #include <dt-bindings/interrupt-controller/apple-aic.h>
92    #include <dt-bindings/pinctrl/apple.h>
93
94    soc {
95      #address-cells = <2>;
96      #size-cells = <2>;
97
98      pinctrl: pinctrl@23c100000 {
99        compatible = "apple,t8103-pinctrl", "apple,pinctrl";
100        reg = <0x2 0x3c100000 0x0 0x100000>;
101        clocks = <&gpio_clk>;
102
103        gpio-controller;
104        #gpio-cells = <2>;
105        gpio-ranges = <&pinctrl 0 0 212>;
106        apple,npins = <212>;
107
108        interrupt-controller;
109        #interrupt-cells = <2>;
110        interrupt-parent = <&aic>;
111        interrupts = <AIC_IRQ 16 IRQ_TYPE_LEVEL_HIGH>,
112                     <AIC_IRQ 17 IRQ_TYPE_LEVEL_HIGH>,
113                     <AIC_IRQ 18 IRQ_TYPE_LEVEL_HIGH>,
114                     <AIC_IRQ 19 IRQ_TYPE_LEVEL_HIGH>,
115                     <AIC_IRQ 20 IRQ_TYPE_LEVEL_HIGH>,
116                     <AIC_IRQ 21 IRQ_TYPE_LEVEL_HIGH>,
117                     <AIC_IRQ 22 IRQ_TYPE_LEVEL_HIGH>;
118
119        pcie_pins: pcie-pins {
120          pinmux = <APPLE_PINMUX(150, 1)>,
121                   <APPLE_PINMUX(151, 1)>,
122                   <APPLE_PINMUX(32, 1)>;
123        };
124      };
125    };
126