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Convert the Broadcom iProc/Cygnus GPIO/Pinconf binding to DT schema format. The child node structure is based on the example as there's not any actual .dts files with child nodes. The binding wasn't clear that "reg" can be 1 or 2 entries. The number of "reg" entries doesn't appear to be based on compatible, so no per compatible constraints for it The "brcm,iproc-stingray-gpio" could possibly be dropped. There are no .dts files using it, but the driver uses it. Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/20250812203348.733749-1-robh@kernel.org Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
112 lines
2.2 KiB
YAML
112 lines
2.2 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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$id: http://devicetree.org/schemas/pinctrl/brcm,iproc-gpio.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Broadcom iProc GPIO/PINCONF Controller
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maintainers:
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- Ray Jui <rjui@broadcom.com>
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- Scott Branden <sbranden@broadcom.com>
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properties:
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compatible:
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oneOf:
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- enum:
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- brcm,cygnus-asiu-gpio
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- brcm,cygnus-ccm-gpio
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- brcm,cygnus-crmu-gpio
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- brcm,iproc-gpio
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- brcm,iproc-stingray-gpio
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- items:
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- enum:
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- brcm,iproc-hr2-gpio
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- brcm,iproc-nsp-gpio
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- const: brcm,iproc-gpio
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reg:
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minItems: 1
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items:
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- description: GPIO Bank registers
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- description: IO Ctrl registers
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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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ngpios: 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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interrupt-controller: true
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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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- ngpios
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patternProperties:
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'-pins$':
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type: object
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additionalProperties:
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description: Pin configuration child nodes.
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allOf:
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- $ref: pincfg-node.yaml#
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- $ref: pinmux-node.yaml#
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additionalProperties: false
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properties:
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pins:
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items:
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pattern: '^gpio-'
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bias-disable: true
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bias-pull-up: true
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bias-pull-down: true
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drive-strength:
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enum: [ 2, 4, 6, 8, 10, 12, 14, 16 ]
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required:
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- pins
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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gpio@1800a000 {
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compatible = "brcm,cygnus-ccm-gpio";
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reg = <0x1800a000 0x50>,
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<0x0301d164 0x20>;
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ngpios = <24>;
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#gpio-cells = <2>;
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gpio-controller;
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#interrupt-cells = <2>;
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interrupts = <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>;
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interrupt-controller;
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touch-pins {
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pwr {
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pins = "gpio-0";
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drive-strength = <16>;
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};
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event {
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pins = "gpio-1";
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bias-pull-up;
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};
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};
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};
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