1*833e5d42SEmmanuel Vadot# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2*833e5d42SEmmanuel Vadot%YAML 1.2 3*833e5d42SEmmanuel Vadot--- 4*833e5d42SEmmanuel Vadot$id: http://devicetree.org/schemas/gpio/lacie,netxbig-gpio-ext.yaml# 5*833e5d42SEmmanuel Vadot$schema: http://devicetree.org/meta-schemas/core.yaml# 6*833e5d42SEmmanuel Vadot 7*833e5d42SEmmanuel Vadottitle: NetxBig GPIO extension bus 8*833e5d42SEmmanuel Vadot 9*833e5d42SEmmanuel Vadotmaintainers: 10*833e5d42SEmmanuel Vadot - Simon Guinot <simon.guinot@sequanux.org> 11*833e5d42SEmmanuel Vadot 12*833e5d42SEmmanuel Vadotdescription: > 13*833e5d42SEmmanuel Vadot GPIO extension bus found on some LaCie/Seagate boards 14*833e5d42SEmmanuel Vadot (Example: 2Big/5Big Network v2, 2Big NAS). 15*833e5d42SEmmanuel Vadot 16*833e5d42SEmmanuel Vadotproperties: 17*833e5d42SEmmanuel Vadot compatible: 18*833e5d42SEmmanuel Vadot items: 19*833e5d42SEmmanuel Vadot - const: lacie,netxbig-gpio-ext 20*833e5d42SEmmanuel Vadot 21*833e5d42SEmmanuel Vadot addr-gpios: 22*833e5d42SEmmanuel Vadot description: GPIOs representing the address register (LSB->MSB). 23*833e5d42SEmmanuel Vadot items: 24*833e5d42SEmmanuel Vadot - description: bit 0 (LSB) 25*833e5d42SEmmanuel Vadot - description: bit 1 26*833e5d42SEmmanuel Vadot - description: bit 2 (MSB) 27*833e5d42SEmmanuel Vadot 28*833e5d42SEmmanuel Vadot data-gpios: 29*833e5d42SEmmanuel Vadot description: GPIOs representing the data register (LSB->MSB). 30*833e5d42SEmmanuel Vadot items: 31*833e5d42SEmmanuel Vadot - description: bit 0 (LSB) 32*833e5d42SEmmanuel Vadot - description: bit 1 33*833e5d42SEmmanuel Vadot - description: bit 2 (MSB) 34*833e5d42SEmmanuel Vadot 35*833e5d42SEmmanuel Vadot enable-gpio: 36*833e5d42SEmmanuel Vadot description: Latches the new configuration (address, data) on raising edge. 37*833e5d42SEmmanuel Vadot maxItems: 1 38*833e5d42SEmmanuel Vadot 39*833e5d42SEmmanuel Vadotrequired: 40*833e5d42SEmmanuel Vadot - compatible 41*833e5d42SEmmanuel Vadot - addr-gpios 42*833e5d42SEmmanuel Vadot - data-gpios 43*833e5d42SEmmanuel Vadot - enable-gpio 44*833e5d42SEmmanuel Vadot 45*833e5d42SEmmanuel VadotadditionalProperties: false 46*833e5d42SEmmanuel Vadot 47*833e5d42SEmmanuel Vadotexamples: 48*833e5d42SEmmanuel Vadot - | 49*833e5d42SEmmanuel Vadot #include <dt-bindings/gpio/gpio.h> 50*833e5d42SEmmanuel Vadot 51*833e5d42SEmmanuel Vadot gpio { 52*833e5d42SEmmanuel Vadot compatible = "lacie,netxbig-gpio-ext"; 53*833e5d42SEmmanuel Vadot addr-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH 54*833e5d42SEmmanuel Vadot &gpio1 16 GPIO_ACTIVE_HIGH 55*833e5d42SEmmanuel Vadot &gpio1 17 GPIO_ACTIVE_HIGH>; 56*833e5d42SEmmanuel Vadot data-gpios = <&gpio1 12 GPIO_ACTIVE_HIGH 57*833e5d42SEmmanuel Vadot &gpio1 13 GPIO_ACTIVE_HIGH 58*833e5d42SEmmanuel Vadot &gpio1 14 GPIO_ACTIVE_HIGH>; 59*833e5d42SEmmanuel Vadot enable-gpio = <&gpio0 29 GPIO_ACTIVE_HIGH>; 60*833e5d42SEmmanuel Vadot }; 61