tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/gpio/lacie,netxbig-gpio-ext.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: NetxBig GPIO extension bus
8
9maintainers:
10 - Simon Guinot <simon.guinot@sequanux.org>
11
12description: >
13 GPIO extension bus found on some LaCie/Seagate boards
14 (Example: 2Big/5Big Network v2, 2Big NAS).
15
16properties:
17 compatible:
18 items:
19 - const: lacie,netxbig-gpio-ext
20
21 addr-gpios:
22 description: GPIOs representing the address register (LSB->MSB).
23 items:
24 - description: bit 0 (LSB)
25 - description: bit 1
26 - description: bit 2 (MSB)
27
28 data-gpios:
29 description: GPIOs representing the data register (LSB->MSB).
30 items:
31 - description: bit 0 (LSB)
32 - description: bit 1
33 - description: bit 2 (MSB)
34
35 enable-gpio:
36 description: Latches the new configuration (address, data) on raising edge.
37 maxItems: 1
38
39required:
40 - compatible
41 - addr-gpios
42 - data-gpios
43 - enable-gpio
44
45additionalProperties: false
46
47examples:
48 - |
49 #include <dt-bindings/gpio/gpio.h>
50
51 gpio {
52 compatible = "lacie,netxbig-gpio-ext";
53 addr-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH
54 &gpio1 16 GPIO_ACTIVE_HIGH
55 &gpio1 17 GPIO_ACTIVE_HIGH>;
56 data-gpios = <&gpio1 12 GPIO_ACTIVE_HIGH
57 &gpio1 13 GPIO_ACTIVE_HIGH
58 &gpio1 14 GPIO_ACTIVE_HIGH>;
59 enable-gpio = <&gpio0 29 GPIO_ACTIVE_HIGH>;
60 };