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lastdragon
2026-09-06 12:53:21 -06:00
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linux-7.2.3/Documentation/devicetree/bindings/interconnect/mediatek,mt8183-emi.yaml
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/interconnect/mediatek,mt8183-emi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek External Memory Interface (EMI) Interconnect
maintainers:
- AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
description: |
EMI interconnect providers support system bandwidth requirements through
Dynamic Voltage Frequency Scaling Resource Collector (DVFSRC) hardware.
The provider is able to communicate with the DVFSRC through Secure Monitor
Call (SMC).
ICC provider ICC Nodes
---- ----
_________ |CPU | |--- |VPU |
_____ | |----- ---- | ----
| |->| DRAM | ---- | ----
|DRAM |->|scheduler|----- |GPU | |--- |DISP|
| |->| (EMI) | ---- | ----
|_____|->|_________|---. ----- | ----
/|\ `-|MMSYS|--|--- |VDEC|
| ----- | ----
| | ----
| change DRAM freq |--- |VENC|
-------- | ----
SMC --> | DVFSRC | | ----
-------- |--- |IMG |
| ----
| ----
|--- |CAM |
----
properties:
compatible:
enum:
- mediatek,mt8183-emi
- mediatek,mt8195-emi
- mediatek,mt8196-emi
'#interconnect-cells':
const: 1
required:
- compatible
- '#interconnect-cells'
unevaluatedProperties: false