1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/gpio/mediatek,mt7621-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Mediatek MT7621 SoC GPIO controller
8
9 maintainers:
10 - Sergio Paracuellos <sergio.paracuellos@gmail.com>
11
12 description: |
13 The IP core used inside these SoCs has 3 banks of 32 GPIOs each.
14 The registers of all the banks are interwoven inside one single IO range.
15 We load one GPIO controller instance per bank. Also the GPIO controller can receive
16 interrupts on any of the GPIOs, either edge or level. It then interrupts the CPU
17 using GIC INT12.
18
19 properties:
20 $nodename:
21 pattern: "^gpio@[0-9a-f]+$"
22
23 compatible:
24 const: mediatek,mt7621-gpio
25
26 reg:
27 maxItems: 1
28
29 "#gpio-cells":
30 const: 2
31
32 gpio-controller: true
33 gpio-ranges: true
34
35 interrupt-controller: true
36
37 "#interrupt-cells":
38 const: 2
39
40 interrupts:
41 maxItems: 1
42
43 required:
44 - compatible
45 - reg
46 - "#gpio-cells"
47 - gpio-controller
48 - gpio-ranges
49 - interrupt-controller
50 - "#interrupt-cells"
51 - interrupts
52
53 additionalProperties: false
54
55 examples:
56 - |
57 #include <dt-bindings/gpio/gpio.h>
58 #include <dt-bindings/interrupt-controller/mips-gic.h>
59
60 gpio@600 {
61 compatible = "mediatek,mt7621-gpio";
62 reg = <0x600 0x100>;
63 #gpio-cells = <2>;
64 gpio-controller;
65 gpio-ranges = <&pinctrl 0 0 95>;
66 interrupt-controller;
67 #interrupt-cells = <2>;
68 interrupt-parent = <&gic>;
69 interrupts = <GIC_SHARED 12 IRQ_TYPE_LEVEL_HIGH>;
70 };
71
72 ...
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.