mirror of
https://github.com/torvalds/linux.git
synced 2026-04-18 23:03:57 -04:00
084d01a173
Loongson-2K0300 ships a GPIO controller whose input/output control logic is similar to previous generation of SoCs. Additionally, it acts as an interrupt-controller supporting both level and edge interrupts and has a distinct reset signal. Describe its compatible in devicetree. We enlarge the maximum value of ngpios to 128, since the controller technically supports at most 128 pins, although only 106 are routed out of the package. Properties for interrupt-controllers and resets are introduced and limited as LS2K0300 only. Signed-off-by: Yao Zi <ziyao@disroot.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250904013438.2405-2-ziyao@disroot.org Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
169 lines
4.9 KiB
YAML
169 lines
4.9 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/gpio/loongson,ls-gpio.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Loongson GPIO controller.
|
|
|
|
maintainers:
|
|
- Yinbo Zhu <zhuyinbo@loongson.cn>
|
|
|
|
properties:
|
|
compatible:
|
|
oneOf:
|
|
- enum:
|
|
- loongson,ls2k-gpio
|
|
- loongson,ls2k0300-gpio
|
|
- loongson,ls2k0500-gpio0
|
|
- loongson,ls2k0500-gpio1
|
|
- loongson,ls2k2000-gpio0
|
|
- loongson,ls2k2000-gpio1
|
|
- loongson,ls2k2000-gpio2
|
|
- loongson,ls3a5000-gpio
|
|
- loongson,ls3a6000-gpio # Loongson-3A6000 node GPIO
|
|
- loongson,ls7a-gpio
|
|
- loongson,ls7a2000-gpio1 # LS7A2000 chipset GPIO
|
|
- loongson,ls7a2000-gpio2 # LS7A2000 ACPI GPIO
|
|
- items:
|
|
- const: loongson,ls2k1000-gpio
|
|
- const: loongson,ls2k-gpio
|
|
- items:
|
|
- const: loongson,ls7a1000-gpio
|
|
- const: loongson,ls7a-gpio
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
ngpios:
|
|
minimum: 1
|
|
maximum: 128
|
|
|
|
"#gpio-cells":
|
|
const: 2
|
|
|
|
gpio-controller: true
|
|
|
|
gpio-ranges: true
|
|
|
|
interrupts:
|
|
minItems: 1
|
|
maxItems: 64
|
|
|
|
"#interrupt-cells":
|
|
const: 2
|
|
|
|
interrupt-controller: true
|
|
|
|
resets:
|
|
maxItems: 1
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- ngpios
|
|
- "#gpio-cells"
|
|
- gpio-controller
|
|
- gpio-ranges
|
|
- interrupts
|
|
|
|
allOf:
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: loongson,ls2k0300-gpio
|
|
then:
|
|
required:
|
|
- "#interrupt-cells"
|
|
- interrupt-controller
|
|
- resets
|
|
else:
|
|
properties:
|
|
"#interrupts-cells": false
|
|
interrupt-controller: false
|
|
resets: false
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/interrupt-controller/irq.h>
|
|
|
|
gpio0: gpio@1fe00500 {
|
|
compatible = "loongson,ls2k1000-gpio", "loongson,ls2k-gpio";
|
|
reg = <0x1fe00500 0x38>;
|
|
ngpios = <64>;
|
|
#gpio-cells = <2>;
|
|
gpio-controller;
|
|
gpio-ranges = <&pctrl 0 0 15>,
|
|
<&pctrl 16 16 15>,
|
|
<&pctrl 32 32 10>,
|
|
<&pctrl 44 44 20>;
|
|
interrupt-parent = <&liointc1>;
|
|
interrupts = <28 IRQ_TYPE_LEVEL_LOW>,
|
|
<29 IRQ_TYPE_LEVEL_LOW>,
|
|
<30 IRQ_TYPE_LEVEL_LOW>,
|
|
<30 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<26 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<>,
|
|
<>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>,
|
|
<27 IRQ_TYPE_LEVEL_LOW>;
|
|
};
|