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72 lines
1.5 KiB
72 lines
1.5 KiB
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/gpio/mediatek,mt7621-gpio.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Mediatek MT7621 SoC GPIO controller |
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maintainers: |
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- Sergio Paracuellos <[email protected]> |
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description: | |
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The IP core used inside these SoCs has 3 banks of 32 GPIOs each. |
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The registers of all the banks are interwoven inside one single IO range. |
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We load one GPIO controller instance per bank. Also the GPIO controller can receive |
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interrupts on any of the GPIOs, either edge or level. It then interrupts the CPU |
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using GIC INT12. |
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properties: |
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$nodename: |
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pattern: "^gpio@[0-9a-f]+$" |
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compatible: |
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const: mediatek,mt7621-gpio |
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reg: |
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maxItems: 1 |
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"#gpio-cells": |
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const: 2 |
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gpio-controller: true |
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gpio-ranges: true |
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interrupt-controller: true |
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"#interrupt-cells": |
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const: 2 |
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interrupts: |
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maxItems: 1 |
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required: |
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- compatible |
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- reg |
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- "#gpio-cells" |
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- gpio-controller |
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- gpio-ranges |
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- interrupt-controller |
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- "#interrupt-cells" |
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- interrupts |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/gpio/gpio.h> |
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#include <dt-bindings/interrupt-controller/mips-gic.h> |
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gpio@600 { |
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compatible = "mediatek,mt7621-gpio"; |
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reg = <0x600 0x100>; |
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#gpio-cells = <2>; |
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gpio-controller; |
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gpio-ranges = <&pinctrl 0 0 95>; |
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interrupt-controller; |
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#interrupt-cells = <2>; |
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interrupt-parent = <&gic>; |
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interrupts = <GIC_SHARED 12 IRQ_TYPE_LEVEL_HIGH>; |
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}; |
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...
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