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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpio/nvidia,tegra20-gpio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NVIDIA Tegra GPIO Controller (Tegra20 - Tegra210)
maintainers:
- Thierry Reding <thierry.reding@gmail.com>
- Jon Hunter <jonathanh@nvidia.com>
properties:
compatible:
oneOf:
- enum:
- nvidia,tegra20-gpio
- nvidia,tegra30-gpio
- items:
- enum:
- nvidia,tegra114-gpio
- nvidia,tegra124-gpio
- nvidia,tegra210-gpio
- const: nvidia,tegra30-gpio
reg:
maxItems: 1
interrupts:
description: The interrupt outputs from the controller. For Tegra20,
there should be 7 interrupts specified, and for Tegra30, there should
be 8 interrupts specified.
"#gpio-cells":
description: The first cell is the pin number and the second cell is used
to specify the GPIO polarity (0 = active high, 1 = active low).
const: 2
gpio-controller: true
gpio-ranges:
maxItems: 1
"#interrupt-cells":
description: |
Should be 2. The first cell is the GPIO number. The second cell is
used to specify flags:
bits[3:0] trigger type and level flags:
1 = low-to-high edge triggered.
2 = high-to-low edge triggered.
4 = active high level-sensitive.
8 = active low level-sensitive.
Valid combinations are 1, 2, 3, 4, 8.
const: 2
interrupt-controller: true
allOf:
- if:
properties:
compatible:
contains:
const: nvidia,tegra30-gpio
then:
properties:
interrupts:
minItems: 8
maxItems: 8
else:
properties:
interrupts:
minItems: 7
maxItems: 7
required:
- compatible
- reg
- interrupts
- "#gpio-cells"
- gpio-controller
- "#interrupt-cells"
- interrupt-controller
additionalProperties:
type: object
required:
- gpio-hog
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
gpio: gpio@6000d000 {
compatible = "nvidia,tegra20-gpio";
reg = <0x6000d000 0x1000>;
interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
#gpio-cells = <2>;
gpio-controller;
#interrupt-cells = <2>;
interrupt-controller;
};
|
