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