| # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/mailbox/mtk,adsp-mbox.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Mediatek ADSP mailbox |
| |
| maintainers: |
| - Allen-KH Cheng <Allen-KH.Cheng@mediatek.com> |
| |
| description: | |
| The MTK ADSP mailbox Inter-Processor Communication (IPC) enables the SoC |
| to communicate with ADSP by passing messages through two mailbox channels. |
| The MTK ADSP mailbox IPC also provides the ability for one processor to |
| signal the other processor using interrupts. |
| |
| properties: |
| compatible: |
| enum: |
| - mediatek,mt8195-adsp-mbox |
| - mediatek,mt8186-adsp-mbox |
| |
| "#mbox-cells": |
| const: 0 |
| |
| reg: |
| maxItems: 1 |
| |
| interrupts: |
| maxItems: 1 |
| |
| required: |
| - compatible |
| - "#mbox-cells" |
| - reg |
| - interrupts |
| |
| additionalProperties: false |
| |
| examples: |
| - | |
| #include <dt-bindings/interrupt-controller/arm-gic.h> |
| #include <dt-bindings/interrupt-controller/irq.h> |
| |
| adsp_mailbox0:mailbox@10816000 { |
| compatible = "mediatek,mt8195-adsp-mbox"; |
| #mbox-cells = <0>; |
| reg = <0x10816000 0x1000>; |
| interrupts = <GIC_SPI 702 IRQ_TYPE_LEVEL_HIGH 0>; |
| }; |
