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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpio/socionext,uniphier-gpio.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: UniPhier GPIO controller
maintainers:
- Masahiro Yamada <yamada.masahiro@socionext.com>
properties:
$nodename:
pattern: "^gpio@[0-9a-f]+$"
compatible:
const: socionext,uniphier-gpio
reg:
maxItems: 1
gpio-controller: true
"#gpio-cells":
const: 2
interrupt-controller: true
"#interrupt-cells":
description: |
The first cell defines the interrupt number.
The second cell bits[3:0] is used to specify trigger type as follows:
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
ngpios:
minimum: 0
maximum: 512
gpio-ranges: true
gpio-ranges-group-names:
$ref: /schemas/types.yaml#/definitions/string-array
socionext,interrupt-ranges:
description: |
Specifies an interrupt number mapping between this GPIO controller and
its interrupt parent, in the form of arbitrary number of
<child-interrupt-base parent-interrupt-base length> triplets.
$ref: /schemas/types.yaml#/definitions/uint32-matrix
required:
- compatible
- reg
- gpio-controller
- "#gpio-cells"
- interrupt-controller
- "#interrupt-cells"
- ngpios
- gpio-ranges
- socionext,interrupt-ranges
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/gpio/uniphier-gpio.h>
gpio: gpio@55000000 {
compatible = "socionext,uniphier-gpio";
reg = <0x55000000 0x200>;
interrupt-parent = <&aidet>;
interrupt-controller;
#interrupt-cells = <2>;
gpio-controller;
#gpio-cells = <2>;
gpio-ranges = <&pinctrl 0 0 0>;
gpio-ranges-group-names = "gpio_range";
ngpios = <248>;
socionext,interrupt-ranges = <0 48 16>, <16 154 5>, <21 217 3>;
};
// Consumer:
// Please note UNIPHIER_GPIO_PORT(29, 4) represents PORT294 in the SoC
// document. Unfortunately, only the one's place is octal in the port
// numbering. (That is, PORT 8, 9, 18, 19, 28, 29, ... do not exist.)
// UNIPHIER_GPIO_PORT() is a helper macro to calculate 29 * 8 + 4.
sdhci0_pwrseq {
compatible = "mmc-pwrseq-emmc";
reset-gpios = <&gpio UNIPHIER_GPIO_PORT(29, 4) GPIO_ACTIVE_LOW>;
};
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