Merge tag 'for-linus-5.15-1' of git://github.com/cminyard/linux-ipmi
[linux-2.6-microblaze.git] / Documentation / devicetree / bindings / thermal / qcom-lmh.yaml
1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 # Copyright 2021 Linaro Ltd.
3 %YAML 1.2
4 ---
5 $id: http://devicetree.org/schemas/thermal/qcom-lmh.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
7
8 title: Qualcomm Limits Management Hardware(LMh)
9
10 maintainers:
11   - Thara Gopinath <thara.gopinath@linaro.org>
12
13 description:
14   Limits Management Hardware(LMh) is a hardware infrastructure on some
15   Qualcomm SoCs that can enforce temperature and current limits as
16   programmed by software for certain IPs like CPU.
17
18 properties:
19   compatible:
20     enum:
21       - qcom,sdm845-lmh
22
23   reg:
24     items:
25       - description: core registers
26
27   interrupts:
28     maxItems: 1
29
30   '#interrupt-cells':
31     const: 1
32
33   interrupt-controller: true
34
35   cpus:
36     description:
37       phandle of the first cpu in the LMh cluster
38     $ref: /schemas/types.yaml#/definitions/phandle
39
40   qcom,lmh-temp-arm-millicelsius:
41     description:
42       An integer expressing temperature threshold at which the LMh thermal
43       FSM is engaged.
44
45   qcom,lmh-temp-low-millicelsius:
46     description:
47       An integer expressing temperature threshold at which the state machine
48       will attempt to remove frequency throttling.
49
50   qcom,lmh-temp-high-millicelsius:
51     description:
52       An integer expressing temperature threshold at which the state machine
53       will attempt to throttle the frequency.
54
55 required:
56   - compatible
57   - reg
58   - interrupts
59   - '#interrupt-cells'
60   - interrupt-controller
61   - cpus
62   - qcom,lmh-temp-arm-millicelsius
63   - qcom,lmh-temp-low-millicelsius
64   - qcom,lmh-temp-high-millicelsius
65
66 additionalProperties: false
67
68 examples:
69   - |
70     #include <dt-bindings/interrupt-controller/arm-gic.h>
71
72     lmh@17d70800 {
73       compatible = "qcom,sdm845-lmh";
74       reg = <0x17d70800 0x400>;
75       interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
76       cpus = <&CPU4>;
77       qcom,lmh-temp-arm-millicelsius = <65000>;
78       qcom,lmh-temp-low-millicelsius = <94500>;
79       qcom,lmh-temp-high-millicelsius = <95000>;
80       interrupt-controller;
81       #interrupt-cells = <1>;
82     };