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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)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/gpio/loongson,ls-gpio.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Loongson GPIO controller.
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maintainers:
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- Yinbo Zhu <zhuyinbo@loongson.cn>
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properties:
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compatible:
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oneOf:
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- enum:
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- loongson,ls2k-gpio
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- loongson,ls2k0300-gpio
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- loongson,ls2k0500-gpio0
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- loongson,ls2k0500-gpio1
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- loongson,ls2k2000-gpio0
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- loongson,ls2k2000-gpio1
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- loongson,ls2k2000-gpio2
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- loongson,ls3a5000-gpio
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- loongson,ls3a6000-gpio # Loongson-3A6000 node GPIO
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- loongson,ls7a-gpio
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- loongson,ls7a2000-gpio1 # LS7A2000 chipset GPIO
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- loongson,ls7a2000-gpio2 # LS7A2000 ACPI GPIO
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- items:
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- const: loongson,ls2k1000-gpio
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- const: loongson,ls2k-gpio
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- items:
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- const: loongson,ls7a1000-gpio
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- const: loongson,ls7a-gpio
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reg:
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maxItems: 1
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ngpios:
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minimum: 1
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maximum: 128
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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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interrupts:
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minItems: 1
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maxItems: 64
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"#interrupt-cells":
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const: 2
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interrupt-controller: true
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resets:
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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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- ngpios
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- "#gpio-cells"
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- gpio-controller
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- gpio-ranges
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- interrupts
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allOf:
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- if:
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properties:
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compatible:
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contains:
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const: loongson,ls2k0300-gpio
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then:
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required:
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- "#interrupt-cells"
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- interrupt-controller
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- resets
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else:
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properties:
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"#interrupts-cells": false
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interrupt-controller: false
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resets: false
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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gpio0: gpio@1fe00500 {
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compatible = "loongson,ls2k1000-gpio", "loongson,ls2k-gpio";
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reg = <0x1fe00500 0x38>;
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ngpios = <64>;
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#gpio-cells = <2>;
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gpio-controller;
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gpio-ranges = <&pctrl 0 0 15>,
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<&pctrl 16 16 15>,
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<&pctrl 32 32 10>,
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<&pctrl 44 44 20>;
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interrupt-parent = <&liointc1>;
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interrupts = <28 IRQ_TYPE_LEVEL_LOW>,
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<29 IRQ_TYPE_LEVEL_LOW>,
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<30 IRQ_TYPE_LEVEL_LOW>,
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<30 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<26 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<>,
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<>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>,
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<27 IRQ_TYPE_LEVEL_LOW>;
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};
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