nvidia,tegra20-gpio.yaml (2740B)
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/gpio/nvidia,tegra20-gpio.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: NVIDIA Tegra GPIO Controller (Tegra20 - Tegra210) 8 9maintainers: 10 - Thierry Reding <thierry.reding@gmail.com> 11 - Jon Hunter <jonathanh@nvidia.com> 12 13properties: 14 compatible: 15 oneOf: 16 - enum: 17 - nvidia,tegra20-gpio 18 - nvidia,tegra30-gpio 19 20 - items: 21 - enum: 22 - nvidia,tegra114-gpio 23 - nvidia,tegra124-gpio 24 - nvidia,tegra210-gpio 25 - const: nvidia,tegra30-gpio 26 27 reg: 28 maxItems: 1 29 30 interrupts: 31 description: The interrupt outputs from the controller. For Tegra20, 32 there should be 7 interrupts specified, and for Tegra30, there should 33 be 8 interrupts specified. 34 35 "#gpio-cells": 36 description: The first cell is the pin number and the second cell is used 37 to specify the GPIO polarity (0 = active high, 1 = active low). 38 const: 2 39 40 gpio-controller: true 41 42 gpio-ranges: 43 maxItems: 1 44 45 "#interrupt-cells": 46 description: | 47 Should be 2. The first cell is the GPIO number. The second cell is 48 used to specify flags: 49 50 bits[3:0] trigger type and level flags: 51 1 = low-to-high edge triggered. 52 2 = high-to-low edge triggered. 53 4 = active high level-sensitive. 54 8 = active low level-sensitive. 55 56 Valid combinations are 1, 2, 3, 4, 8. 57 const: 2 58 59 interrupt-controller: true 60 61allOf: 62 - if: 63 properties: 64 compatible: 65 contains: 66 const: nvidia,tegra30-gpio 67 then: 68 properties: 69 interrupts: 70 minItems: 8 71 maxItems: 8 72 else: 73 properties: 74 interrupts: 75 minItems: 7 76 maxItems: 7 77 78required: 79 - compatible 80 - reg 81 - interrupts 82 - "#gpio-cells" 83 - gpio-controller 84 - "#interrupt-cells" 85 - interrupt-controller 86 87additionalProperties: 88 type: object 89 required: 90 - gpio-hog 91 92examples: 93 - | 94 #include <dt-bindings/interrupt-controller/arm-gic.h> 95 96 gpio: gpio@6000d000 { 97 compatible = "nvidia,tegra20-gpio"; 98 reg = <0x6000d000 0x1000>; 99 interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>, 100 <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>, 101 <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>, 102 <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>, 103 <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>, 104 <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>, 105 <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>; 106 #gpio-cells = <2>; 107 gpio-controller; 108 #interrupt-cells = <2>; 109 interrupt-controller; 110 };