brcm,kona-gpio.yaml

  1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/gpio/brcm,kona-gpio.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Broadcom Kona family GPIO controller
  8
  9description:
 10  The Broadcom GPIO Controller IP can be configured prior to synthesis to
 11  support up to 8 banks of 32 GPIOs where each bank has its own IRQ. The
 12  GPIO controller only supports edge, not level, triggering of interrupts.
 13
 14maintainers:
 15  - Ray Jui <rjui@broadcom.com>
 16
 17properties:
 18  compatible:
 19    items:
 20      - enum:
 21          - brcm,bcm11351-gpio
 22          - brcm,bcm21664-gpio
 23          - brcm,bcm23550-gpio
 24      - const: brcm,kona-gpio
 25
 26  reg:
 27    maxItems: 1
 28
 29  interrupts:
 30    minItems: 4
 31    maxItems: 6
 32    description:
 33      The interrupt outputs from the controller. There is one GPIO interrupt
 34      per GPIO bank. The number of interrupts listed depends on the number of
 35      GPIO banks on the SoC. The interrupts must be ordered by bank, starting
 36      with bank 0. There is always a 1:1 mapping between banks and IRQs.
 37
 38  '#gpio-cells':
 39    const: 2
 40
 41  '#interrupt-cells':
 42    const: 2
 43
 44  gpio-controller: true
 45
 46  interrupt-controller: true
 47
 48required:
 49  - compatible
 50  - reg
 51  - interrupts
 52  - '#gpio-cells'
 53  - '#interrupt-cells'
 54  - gpio-controller
 55  - interrupt-controller
 56
 57allOf:
 58  - if:
 59      properties:
 60        compatible:
 61          contains:
 62            const: brcm,bcm11351-gpio
 63    then:
 64      properties:
 65        interrupts:
 66          minItems: 6
 67  - if:
 68      properties:
 69        compatible:
 70          contains:
 71            enum:
 72              - brcm,bcm21664-gpio
 73              - brcm,bcm23550-gpio
 74    then:
 75      properties:
 76        interrupts:
 77          maxItems: 4
 78
 79additionalProperties: false
 80
 81examples:
 82  - |
 83    #include <dt-bindings/interrupt-controller/arm-gic.h>
 84    #include <dt-bindings/interrupt-controller/irq.h>
 85
 86    gpio@35003000 {
 87        compatible = "brcm,bcm11351-gpio", "brcm,kona-gpio";
 88        reg = <0x35003000 0x800>;
 89        interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>,
 90                     <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
 91                     <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>,
 92                     <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>,
 93                     <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>,
 94                     <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
 95        #gpio-cells = <2>;
 96        #interrupt-cells = <2>;
 97        gpio-controller;
 98        interrupt-controller;
 99    };
100...