snps,dw-apb-gpio.yaml (3027B)
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/gpio/snps,dw-apb-gpio.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Synopsys DesignWare APB GPIO controller 8 9description: | 10 Synopsys DesignWare GPIO controllers have a configurable number of ports, 11 each of which are intended to be represented as child nodes with the generic 12 GPIO-controller properties as desribed in this bindings file. 13 14maintainers: 15 - Hoan Tran <hoan@os.amperecomputing.com> 16 - Serge Semin <fancer.lancer@gmail.com> 17 18properties: 19 $nodename: 20 pattern: "^gpio@[0-9a-f]+$" 21 22 compatible: 23 const: snps,dw-apb-gpio 24 25 "#address-cells": 26 const: 1 27 28 "#size-cells": 29 const: 0 30 31 reg: 32 maxItems: 1 33 34 clocks: 35 minItems: 1 36 items: 37 - description: APB interface clock source 38 - description: DW GPIO debounce reference clock source 39 40 clock-names: 41 minItems: 1 42 items: 43 - const: bus 44 - const: db 45 46 resets: 47 maxItems: 1 48 49patternProperties: 50 "^gpio-(port|controller)@[0-9a-f]+$": 51 type: object 52 properties: 53 compatible: 54 const: snps,dw-apb-gpio-port 55 56 reg: 57 maxItems: 1 58 59 gpio-controller: true 60 61 '#gpio-cells': 62 const: 2 63 64 ngpios: 65 default: 32 66 minimum: 1 67 maximum: 32 68 69 snps,nr-gpios: 70 description: The number of GPIO pins exported by the port. 71 deprecated: true 72 $ref: /schemas/types.yaml#/definitions/uint32 73 default: 32 74 minimum: 1 75 maximum: 32 76 77 interrupts: 78 description: | 79 The interrupts to the parent controller raised when GPIOs generate 80 the interrupts. If the controller provides one combined interrupt 81 for all GPIOs, specify a single interrupt. If the controller provides 82 one interrupt for each GPIO, provide a list of interrupts that 83 correspond to each of the GPIO pins. 84 minItems: 1 85 maxItems: 32 86 87 interrupt-controller: true 88 89 '#interrupt-cells': 90 const: 2 91 92 required: 93 - compatible 94 - reg 95 - gpio-controller 96 - '#gpio-cells' 97 98 dependencies: 99 interrupt-controller: [ interrupts ] 100 101 additionalProperties: false 102 103additionalProperties: false 104 105required: 106 - compatible 107 - reg 108 - "#address-cells" 109 - "#size-cells" 110 111examples: 112 - | 113 gpio: gpio@20000 { 114 compatible = "snps,dw-apb-gpio"; 115 reg = <0x20000 0x1000>; 116 #address-cells = <1>; 117 #size-cells = <0>; 118 119 porta: gpio-port@0 { 120 compatible = "snps,dw-apb-gpio-port"; 121 reg = <0>; 122 gpio-controller; 123 #gpio-cells = <2>; 124 snps,nr-gpios = <8>; 125 interrupt-controller; 126 #interrupt-cells = <2>; 127 interrupt-parent = <&vic1>; 128 interrupts = <0>; 129 }; 130 131 portb: gpio-port@1 { 132 compatible = "snps,dw-apb-gpio-port"; 133 reg = <1>; 134 gpio-controller; 135 #gpio-cells = <2>; 136 snps,nr-gpios = <8>; 137 }; 138 }; 139...