| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | |
| 7 | title: Broadcom Kona family GPIO controller |
| 8 | |
| 9 | description: |
| 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 | |
| 14 | maintainers: |
| 15 | - Ray Jui <rjui@broadcom.com> |
| 16 | |
| 17 | properties: |
| 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 | |
| 48 | required: |
| 49 | - compatible |
| 50 | - reg |
| 51 | - interrupts |
| 52 | - '#gpio-cells' |
| 53 | - '#interrupt-cells' |
| 54 | - gpio-controller |
| 55 | - interrupt-controller |
| 56 | |
| 57 | allOf: |
| 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 | |
| 79 | additionalProperties: false |
| 80 | |
| 81 | examples: |
| 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 | ... |