| 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/interrupt-controller/amlogic,meson-gpio-intc.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Amlogic Meson GPIO interrupt controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Heiner Kallweit <hkallweit1@gmail.com> |
| 11 | |
| 12 | description: | |
| 13 | Meson SoCs contains an interrupt controller which is able to watch the SoC |
| 14 | pads and generate an interrupt on edge or level. The controller is essentially |
| 15 | a 256 pads to 8 or 12 GIC interrupt multiplexer, with a filter block to select |
| 16 | edge or level and polarity. It does not expose all 256 mux inputs because the |
| 17 | documentation shows that the upper part is not mapped to any pad. The actual |
| 18 | number of interrupts exposed depends on the SoC. |
| 19 | |
| 20 | allOf: |
| 21 | - $ref: /schemas/interrupt-controller.yaml# |
| 22 | |
| 23 | properties: |
| 24 | compatible: |
| 25 | oneOf: |
| 26 | - const: amlogic,meson-gpio-intc |
| 27 | - items: |
| 28 | - enum: |
| 29 | - amlogic,meson8-gpio-intc |
| 30 | - amlogic,meson8b-gpio-intc |
| 31 | - amlogic,meson-gxbb-gpio-intc |
| 32 | - amlogic,meson-gxl-gpio-intc |
| 33 | - amlogic,meson-axg-gpio-intc |
| 34 | - amlogic,meson-g12a-gpio-intc |
| 35 | - amlogic,meson-sm1-gpio-intc |
| 36 | - amlogic,meson-a1-gpio-intc |
| 37 | - amlogic,meson-s4-gpio-intc |
| 38 | - amlogic,c3-gpio-intc |
| 39 | - const: amlogic,meson-gpio-intc |
| 40 | |
| 41 | reg: |
| 42 | maxItems: 1 |
| 43 | |
| 44 | interrupt-controller: true |
| 45 | |
| 46 | "#interrupt-cells": |
| 47 | const: 2 |
| 48 | |
| 49 | amlogic,channel-interrupts: |
| 50 | description: Array with the upstream hwirq numbers |
| 51 | minItems: 8 |
| 52 | maxItems: 12 |
| 53 | $ref: /schemas/types.yaml#/definitions/uint32-array |
| 54 | |
| 55 | required: |
| 56 | - compatible |
| 57 | - reg |
| 58 | - interrupt-controller |
| 59 | - "#interrupt-cells" |
| 60 | - amlogic,channel-interrupts |
| 61 | |
| 62 | additionalProperties: false |
| 63 | |
| 64 | examples: |
| 65 | - | |
| 66 | interrupt-controller@9880 { |
| 67 | compatible = "amlogic,meson-gxbb-gpio-intc", |
| 68 | "amlogic,meson-gpio-intc"; |
| 69 | reg = <0x9880 0x10>; |
| 70 | interrupt-controller; |
| 71 | #interrupt-cells = <2>; |
| 72 | amlogic,channel-interrupts = <64 65 66 67 68 69 70 71>; |
| 73 | }; |