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