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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/gpio/brcm,kona-gpio.yaml
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# 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/brcm,kona-gpio.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Broadcom Kona family GPIO controller

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description:

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  The Broadcom GPIO Controller IP can be configured prior to synthesis to

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  support up to 8 banks of 32 GPIOs where each bank has its own IRQ. The

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  GPIO controller only supports edge, not level, triggering of interrupts.

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maintainers:

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  - Ray Jui <rjui@broadcom.com>

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properties:

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  compatible:

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    items:

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      - enum:

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          - brcm,bcm11351-gpio

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          - brcm,bcm21664-gpio

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          - brcm,bcm23550-gpio

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      - const: brcm,kona-gpio

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  reg:

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    maxItems: 1

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  interrupts:

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    minItems: 4

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    maxItems: 6

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    description:

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      The interrupt outputs from the controller. There is one GPIO interrupt

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      per GPIO bank. The number of interrupts listed depends on the number of

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      GPIO banks on the SoC. The interrupts must be ordered by bank, starting

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      with bank 0. There is always a 1:1 mapping between banks and IRQs.

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  '#gpio-cells':

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    const: 2

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  '#interrupt-cells':

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    const: 2

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  gpio-controller: true

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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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  - interrupts

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  - '#gpio-cells'

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  - '#interrupt-cells'

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  - gpio-controller

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  - interrupt-controller

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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: brcm,bcm11351-gpio

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    then:

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      properties:

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        interrupts:

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          minItems: 6

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  - if:

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      properties:

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        compatible:

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          contains:

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            enum:

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              - brcm,bcm21664-gpio

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              - brcm,bcm23550-gpio

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    then:

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      properties:

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        interrupts:

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          maxItems: 4

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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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    #include <dt-bindings/interrupt-controller/irq.h>

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    gpio@35003000 {

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        compatible = "brcm,bcm11351-gpio", "brcm,kona-gpio";

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        reg = <0x35003000 0x800>;

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        interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>,

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                     <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,

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                     <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>,

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                     <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>,

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                     <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>,

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                     <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;

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        #gpio-cells = <2>;

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        #interrupt-cells = <2>;

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        gpio-controller;

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        interrupt-controller;

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    };

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...

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