FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/interrupt-controller/samsung,exynos4210-combiner.yaml

     # SPDX-License-Identifier: GPL-2.0
     %YAML 1.2
     ---
     $id: http://devicetree.org/schemas/interrupt-controller/samsung,exynos4210-combiner.yaml#
     $schema: http://devicetree.org/meta-schemas/core.yaml#
     
     title: Samsung Exynos SoC Interrupt Combiner Controller
     
     maintainers:
      - Krzysztof Kozlowski <krzk@kernel.org>
    
    description: |
      Samsung's Exynos4 architecture includes a interrupt combiner controller which
      can combine interrupt sources as a group and provide a single interrupt
      request for the group. The interrupt request from each group are connected to
      a parent interrupt controller, such as GIC in case of Exynos4210.
    
      The interrupt combiner controller consists of multiple combiners. Up to eight
      interrupt sources can be connected to a combiner. The combiner outputs one
      combined interrupt for its eight interrupt sources. The combined interrupt is
      usually connected to a parent interrupt controller.
    
      A single node in the device tree is used to describe the interrupt combiner
      controller module (which includes multiple combiners). A combiner in the
      interrupt controller module shares config/control registers with other
      combiners. For example, a 32-bit interrupt enable/disable config register can
      accommodate up to 4 interrupt combiners (with each combiner supporting up to
      8 interrupt sources).
    
    allOf:
      - $ref: /schemas/interrupt-controller.yaml#
    
    properties:
      compatible:
        const: samsung,exynos4210-combiner
    
      interrupt-controller: true
    
      interrupts:
        minItems: 8
        maxItems: 32
    
      "#interrupt-cells":
        description: |
          The meaning of the cells are:
            * First Cell: Combiner Group Number.
            * Second Cell: Interrupt number within the group.
        const: 2
    
      reg:
        maxItems: 1
    
      samsung,combiner-nr:
        description: |
          The number of interrupt combiners supported.  Should match number
          of interrupts set in "interrupts" property.
        $ref: /schemas/types.yaml#/definitions/uint32
        minimum: 8
        maximum: 32
        default: 16
    
    required:
      - compatible
      - interrupt-controller
      - interrupts
      - "#interrupt-cells"
      - reg
    
    additionalProperties: false
    
    examples:
      - |
        #include <dt-bindings/interrupt-controller/arm-gic.h>
    
        interrupt-controller@10440000 {
            compatible = "samsung,exynos4210-combiner";
            interrupt-controller;
            #interrupt-cells = <2>;
            reg = <0x10440000 0x1000>;
            interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
                         <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
        };

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