xref: /linux/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml (revision a4eb44a6435d6d8f9e642407a4a06f65eb90ca04) 
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,t6000-pinctrl
23      - const: apple,pinctrl
24
25  reg:
26    maxItems: 1
27
28  clocks:
29    maxItems: 1
30
31  gpio-controller: true
32
33  '#gpio-cells':
34    const: 2
35
36  gpio-ranges:
37    maxItems: 1
38
39  apple,npins:
40    $ref: /schemas/types.yaml#/definitions/uint32
41    description: The number of pins in this GPIO controller.
42
43  interrupts:
44    description: One interrupt for each of the (up to 7) interrupt
45      groups supported by the controller sorted by interrupt group
46      number in ascending order.
47    minItems: 1
48    maxItems: 7
49
50  interrupt-controller: true
51
52  '#interrupt-cells':
53    const: 2
54
55  power-domains:
56    maxItems: 1
57
58patternProperties:
59  '-pins$':
60    type: object
61    $ref: pinmux-node.yaml#
62
63    properties:
64      pinmux:
65        description:
66          Values are constructed from pin number and alternate function
67          configuration number using the APPLE_PINMUX() helper macro
68          defined in include/dt-bindings/pinctrl/apple.h.
69
70    required:
71      - pinmux
72
73    additionalProperties: false
74
75allOf:
76  - $ref: "pinctrl.yaml#"
77
78required:
79  - compatible
80  - reg
81  - gpio-controller
82  - '#gpio-cells'
83  - gpio-ranges
84  - apple,npins
85
86additionalProperties: false
87
88examples:
89  - |
90    #include <dt-bindings/interrupt-controller/apple-aic.h>
91    #include <dt-bindings/pinctrl/apple.h>
92
93    soc {
94      #address-cells = <2>;
95      #size-cells = <2>;
96
97      pinctrl: pinctrl@23c100000 {
98        compatible = "apple,t8103-pinctrl", "apple,pinctrl";
99        reg = <0x2 0x3c100000 0x0 0x100000>;
100        clocks = <&gpio_clk>;
101
102        gpio-controller;
103        #gpio-cells = <2>;
104        gpio-ranges = <&pinctrl 0 0 212>;
105        apple,npins = <212>;
106
107        interrupt-controller;
108        #interrupt-cells = <2>;
109        interrupt-parent = <&aic>;
110        interrupts = <AIC_IRQ 16 IRQ_TYPE_LEVEL_HIGH>,
111                     <AIC_IRQ 17 IRQ_TYPE_LEVEL_HIGH>,
112                     <AIC_IRQ 18 IRQ_TYPE_LEVEL_HIGH>,
113                     <AIC_IRQ 19 IRQ_TYPE_LEVEL_HIGH>,
114                     <AIC_IRQ 20 IRQ_TYPE_LEVEL_HIGH>,
115                     <AIC_IRQ 21 IRQ_TYPE_LEVEL_HIGH>,
116                     <AIC_IRQ 22 IRQ_TYPE_LEVEL_HIGH>;
117
118        pcie_pins: pcie-pins {
119          pinmux = <APPLE_PINMUX(150, 1)>,
120                   <APPLE_PINMUX(151, 1)>,
121                   <APPLE_PINMUX(32, 1)>;
122        };
123      };
124    };
125