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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpio/lacie,netxbig-gpio-ext.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NetxBig GPIO extension bus
maintainers:
- Simon Guinot <simon.guinot@sequanux.org>
description: >
GPIO extension bus found on some LaCie/Seagate boards
(Example: 2Big/5Big Network v2, 2Big NAS).
properties:
compatible:
items:
- const: lacie,netxbig-gpio-ext
addr-gpios:
description: GPIOs representing the address register (LSB->MSB).
items:
- description: bit 0 (LSB)
- description: bit 1
- description: bit 2 (MSB)
data-gpios:
description: GPIOs representing the data register (LSB->MSB).
items:
- description: bit 0 (LSB)
- description: bit 1
- description: bit 2 (MSB)
enable-gpio:
description: Latches the new configuration (address, data) on raising edge.
maxItems: 1
required:
- compatible
- addr-gpios
- data-gpios
- enable-gpio
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
gpio {
compatible = "lacie,netxbig-gpio-ext";
addr-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH
&gpio1 16 GPIO_ACTIVE_HIGH
&gpio1 17 GPIO_ACTIVE_HIGH>;
data-gpios = <&gpio1 12 GPIO_ACTIVE_HIGH
&gpio1 13 GPIO_ACTIVE_HIGH
&gpio1 14 GPIO_ACTIVE_HIGH>;
enable-gpio = <&gpio0 29 GPIO_ACTIVE_HIGH>;
};
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