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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/soc/mediatek/mediatek,mt8183-dvfsrc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: MediaTek Dynamic Voltage and Frequency Scaling Resource Collector (DVFSRC)
description:
The Dynamic Voltage and Frequency Scaling Resource Collector (DVFSRC) is a
Hardware module used to collect all the requests from both software and the
various remote processors embedded into the SoC and decide about a minimum
operating voltage and a minimum DRAM frequency to fulfill those requests in
an effort to provide the best achievable performance per watt.
This hardware IP is capable of transparently performing direct register R/W
on all of the DVFSRC-controlled regulators and SoC bandwidth knobs.
maintainers:
- AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
- Henry Chen <henryc.chen@mediatek.com>
properties:
compatible:
oneOf:
- enum:
- mediatek,mt6893-dvfsrc
- mediatek,mt8183-dvfsrc
- mediatek,mt8195-dvfsrc
- items:
- const: mediatek,mt8192-dvfsrc
- const: mediatek,mt8195-dvfsrc
reg:
maxItems: 1
description: DVFSRC common register address and length.
regulators:
type: object
$ref: /schemas/regulator/mediatek,mt6873-dvfsrc-regulator.yaml#
interconnect:
type: object
$ref: /schemas/interconnect/mediatek,mt8183-emi.yaml#
required:
- compatible
- reg
additionalProperties: false
examples:
- |
soc {
#address-cells = <2>;
#size-cells = <2>;
system-controller@10012000 {
compatible = "mediatek,mt8195-dvfsrc";
reg = <0 0x10012000 0 0x1000>;
regulators {
compatible = "mediatek,mt8195-dvfsrc-regulator";
dvfsrc_vcore: dvfsrc-vcore {
regulator-name = "dvfsrc-vcore";
regulator-min-microvolt = <550000>;
regulator-max-microvolt = <750000>;
regulator-always-on;
};
dvfsrc_vscp: dvfsrc-vscp {
regulator-name = "dvfsrc-vscp";
regulator-min-microvolt = <550000>;
regulator-max-microvolt = <750000>;
regulator-always-on;
};
};
emi_icc: interconnect {
compatible = "mediatek,mt8195-emi";
#interconnect-cells = <1>;
};
};
};
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