| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/snps,archs-idu-intc.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: ARC-HS Interrupt Distribution Unit |
| |
| maintainers: |
| - Vineet Gupta <vgupta@kernel.org> |
| |
| description: > |
| ARC-HS Interrupt Distribution Unit is an optional 2nd level interrupt |
| controller which can be used in SMP configurations for dynamic IRQ routing, |
| load balancing of common/external IRQs towards core intc. |
| |
| The interrupt controller is accessed via the special ARC AUX register |
| interface, hence "reg" property is not specified. |
| |
| properties: |
| compatible: |
| const: snps,archs-idu-intc |
| |
| interrupt-controller: true |
| |
| '#interrupt-cells': |
| description: | |
| Number of interrupt specifier cells: |
| - 1: only a common IRQ is specified. |
| - 2: a second cell encodes trigger type and level flags: |
| 1 = low-to-high edge triggered |
| 4 = active high level-sensitive (default) |
| enum: [1, 2] |
| |
| required: |
| - compatible |
| - interrupt-controller |
| - '#interrupt-cells' |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| interrupt-controller { |
| compatible = "snps,archs-idu-intc"; |
| interrupt-controller; |
| #interrupt-cells = <1>; |
| }; |
