1*e4b194aaSJan KotasCadence GPIO controller bindings 2*e4b194aaSJan Kotas 3*e4b194aaSJan KotasRequired properties: 4*e4b194aaSJan Kotas- compatible: should be "cdns,gpio-r1p02". 5*e4b194aaSJan Kotas- reg: the register base address and size. 6*e4b194aaSJan Kotas- #gpio-cells: should be 2. 7*e4b194aaSJan Kotas * first cell is the GPIO number. 8*e4b194aaSJan Kotas * second cell specifies the GPIO flags, as defined in 9*e4b194aaSJan Kotas <dt-bindings/gpio/gpio.h>. Only the GPIO_ACTIVE_HIGH 10*e4b194aaSJan Kotas and GPIO_ACTIVE_LOW flags are supported. 11*e4b194aaSJan Kotas- gpio-controller: marks the device as a GPIO controller. 12*e4b194aaSJan Kotas- clocks: should contain one entry referencing the peripheral clock driving 13*e4b194aaSJan Kotas the GPIO controller. 14*e4b194aaSJan Kotas 15*e4b194aaSJan KotasOptional properties: 16*e4b194aaSJan Kotas- ngpios: integer number of gpio lines supported by this controller, up to 32. 17*e4b194aaSJan Kotas- interrupts: interrupt specifier for the controllers interrupt. 18*e4b194aaSJan Kotas- interrupt-controller: marks the device as an interrupt controller. When 19*e4b194aaSJan Kotas defined, interrupts, interrupt-parent and #interrupt-cells 20*e4b194aaSJan Kotas are required. 21*e4b194aaSJan Kotas- interrupt-cells: should be 2. 22*e4b194aaSJan Kotas * first cell is the GPIO number you want to use as an IRQ source. 23*e4b194aaSJan Kotas * second cell specifies the IRQ type, as defined in 24*e4b194aaSJan Kotas <dt-bindings/interrupt-controller/irq.h>. 25*e4b194aaSJan Kotas Currently only level sensitive IRQs are supported. 26*e4b194aaSJan Kotas 27*e4b194aaSJan Kotas 28*e4b194aaSJan KotasExample: 29*e4b194aaSJan Kotas gpio0: gpio-controller@fd060000 { 30*e4b194aaSJan Kotas compatible = "cdns,gpio-r1p02"; 31*e4b194aaSJan Kotas reg =<0xfd060000 0x1000>; 32*e4b194aaSJan Kotas 33*e4b194aaSJan Kotas clocks = <&gpio_clk>; 34*e4b194aaSJan Kotas 35*e4b194aaSJan Kotas interrupt-parent = <&gic>; 36*e4b194aaSJan Kotas interrupts = <0 5 IRQ_TYPE_LEVEL_HIGH>; 37*e4b194aaSJan Kotas 38*e4b194aaSJan Kotas gpio-controller; 39*e4b194aaSJan Kotas #gpio-cells = <2>; 40*e4b194aaSJan Kotas 41*e4b194aaSJan Kotas interrupt-controller; 42*e4b194aaSJan Kotas #interrupt-cells = <2>; 43*e4b194aaSJan Kotas }; 44