85 lines
2.0 KiB
YAML
85 lines
2.0 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
# Copyright 2021 Linaro Ltd.
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/thermal/qcom-lmh.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Qualcomm Limits Management Hardware(LMh)
|
|
|
|
maintainers:
|
|
- Thara Gopinath <thara.gopinath@linaro.org>
|
|
|
|
description:
|
|
Limits Management Hardware(LMh) is a hardware infrastructure on some
|
|
Qualcomm SoCs that can enforce temperature and current limits as
|
|
programmed by software for certain IPs like CPU.
|
|
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- qcom,sc8180x-lmh
|
|
- qcom,sdm845-lmh
|
|
- qcom,sm8150-lmh
|
|
|
|
reg:
|
|
items:
|
|
- description: core registers
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
'#interrupt-cells':
|
|
const: 1
|
|
|
|
interrupt-controller: true
|
|
|
|
cpus:
|
|
description:
|
|
phandle of the first cpu in the LMh cluster
|
|
maxItems: 1
|
|
|
|
qcom,lmh-temp-arm-millicelsius:
|
|
description:
|
|
An integer expressing temperature threshold at which the LMh thermal
|
|
FSM is engaged.
|
|
|
|
qcom,lmh-temp-low-millicelsius:
|
|
description:
|
|
An integer expressing temperature threshold at which the state machine
|
|
will attempt to remove frequency throttling.
|
|
|
|
qcom,lmh-temp-high-millicelsius:
|
|
description:
|
|
An integer expressing temperature threshold at which the state machine
|
|
will attempt to throttle the frequency.
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- interrupts
|
|
- '#interrupt-cells'
|
|
- interrupt-controller
|
|
- cpus
|
|
- qcom,lmh-temp-arm-millicelsius
|
|
- qcom,lmh-temp-low-millicelsius
|
|
- qcom,lmh-temp-high-millicelsius
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
|
|
|
lmh@17d70800 {
|
|
compatible = "qcom,sdm845-lmh";
|
|
reg = <0x17d70800 0x400>;
|
|
interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
|
|
cpus = <&CPU4>;
|
|
qcom,lmh-temp-arm-millicelsius = <65000>;
|
|
qcom,lmh-temp-low-millicelsius = <94500>;
|
|
qcom,lmh-temp-high-millicelsius = <95000>;
|
|
interrupt-controller;
|
|
#interrupt-cells = <1>;
|
|
};
|