socionext,uniphier-gpio.yaml (2803B)
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/gpio/socionext,uniphier-gpio.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: UniPhier GPIO controller 8 9maintainers: 10 - Masahiro Yamada <yamada.masahiro@socionext.com> 11 12properties: 13 $nodename: 14 pattern: "^gpio@[0-9a-f]+$" 15 16 compatible: 17 const: socionext,uniphier-gpio 18 19 reg: 20 maxItems: 1 21 22 gpio-controller: true 23 24 "#gpio-cells": 25 const: 2 26 27 interrupt-controller: true 28 29 "#interrupt-cells": 30 description: | 31 The first cell defines the interrupt number. 32 The second cell bits[3:0] is used to specify trigger type as follows: 33 1 = low-to-high edge triggered 34 2 = high-to-low edge triggered 35 4 = active high level-sensitive 36 8 = active low level-sensitive 37 Valid combinations are 1, 2, 3, 4, 8. 38 const: 2 39 40 ngpios: 41 minimum: 0 42 maximum: 512 43 44 gpio-ranges: true 45 46 gpio-ranges-group-names: true 47 48 socionext,interrupt-ranges: 49 description: | 50 Specifies an interrupt number mapping between this GPIO controller and 51 its interrupt parent, in the form of arbitrary number of 52 <child-interrupt-base parent-interrupt-base length> triplets. 53 $ref: /schemas/types.yaml#/definitions/uint32-matrix 54 55patternProperties: 56 "^.+-hog(-[0-9]+)?$": 57 type: object 58 properties: 59 gpio-hog: true 60 gpios: true 61 input: true 62 output-high: true 63 output-low: true 64 line-name: true 65 66 required: 67 - gpio-hog 68 - gpios 69 70 additionalProperties: false 71 72required: 73 - compatible 74 - reg 75 - gpio-controller 76 - "#gpio-cells" 77 - interrupt-controller 78 - "#interrupt-cells" 79 - ngpios 80 - gpio-ranges 81 - socionext,interrupt-ranges 82 83additionalProperties: false 84 85examples: 86 - | 87 #include <dt-bindings/gpio/gpio.h> 88 #include <dt-bindings/gpio/uniphier-gpio.h> 89 90 gpio: gpio@55000000 { 91 compatible = "socionext,uniphier-gpio"; 92 reg = <0x55000000 0x200>; 93 interrupt-parent = <&aidet>; 94 interrupt-controller; 95 #interrupt-cells = <2>; 96 gpio-controller; 97 #gpio-cells = <2>; 98 gpio-ranges = <&pinctrl 0 0 0>; 99 gpio-ranges-group-names = "gpio_range"; 100 ngpios = <248>; 101 socionext,interrupt-ranges = <0 48 16>, <16 154 5>, <21 217 3>; 102 }; 103 104 // Consumer: 105 // Please note UNIPHIER_GPIO_PORT(29, 4) represents PORT294 in the SoC 106 // document. Unfortunately, only the one's place is octal in the port 107 // numbering. (That is, PORT 8, 9, 18, 19, 28, 29, ... do not exist.) 108 // UNIPHIER_GPIO_PORT() is a helper macro to calculate 29 * 8 + 4. 109 sdhci0_pwrseq { 110 compatible = "mmc-pwrseq-emmc"; 111 reset-gpios = <&gpio UNIPHIER_GPIO_PORT(29, 4) GPIO_ACTIVE_LOW>; 112 };