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
7 title: Apple GPIO controller
8
9 maintainers:
10 - Mark Kettenis <kettenis@openbsd.org>
11
12 description: |
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
17 properties:
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 $ref: /schemas/types.yaml#/definitions/uint32
42 description: The number of pins in this GPIO controller.
43
44 interrupts:
45 description: One interrupt for each of the (up to 7) interrupt
46 groups supported by the controller sorted by interrupt group
47 number in ascending order.
48 minItems: 1
49 maxItems: 7
50
51 interrupt-controller: true
52
53 '#interrupt-cells':
54 const: 2
55
56 power-domains:
57 maxItems: 1
58
59 patternProperties:
60 '-pins$':
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
76 allOf:
77 - $ref: pinctrl.yaml#
78
79 required:
80 - compatible
81 - reg
82 - gpio-controller
83 - '#gpio-cells'
84 - gpio-ranges
85 - apple,npins
86
87 additionalProperties: false
88
89 examples:
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 };
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