| # 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>; |
| }; |
