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