1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/soc/qcom/qcom-stats.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Qualcomm Technologies, Inc. (QTI) Stats
8
9 maintainers:
10 - Maulik Shah <quic_mkshah@quicinc.com>
11
12 description:
13 Always On Processor/Resource Power Manager maintains statistics of the SoC
14 sleep modes involving powering down of the rails and oscillator clock.
15
16 Statistics includes SoC sleep mode type, number of times low power mode were
17 entered, time of last entry, time of last exit and accumulated sleep duration.
18
19 properties:
20 compatible:
21 enum:
22 - qcom,rpmh-stats
23 - qcom,sdm845-rpmh-stats
24 - qcom,rpm-stats
25 # For older RPM firmware versions with fixed offset for the sleep stats
26 - qcom,apq8084-rpm-stats
27 - qcom,msm8226-rpm-stats
28 - qcom,msm8916-rpm-stats
29 - qcom,msm8974-rpm-stats
30
31 reg:
32 maxItems: 1
33
34 qcom,qmp:
35 $ref: /schemas/types.yaml#/definitions/phandle
36 description: Reference to the AOSS side-channel message RAM
37
38 required:
39 - compatible
40 - reg
41
42 allOf:
43 - if:
44 not:
45 properties:
46 compatible:
47 const: qcom,rpmh-stats
48 then:
49 properties:
50 qcom,qmp: false
51
52 additionalProperties: false
53
54 examples:
55 # Example of rpmh sleep stats
56 - |
57 sram@c3f0000 {
58 compatible = "qcom,rpmh-stats";
59 reg = <0x0c3f0000 0x400>;
60 };
61 # Example of rpm sleep stats
62 - |
63 sram@4690000 {
64 compatible = "qcom,rpm-stats";
65 reg = <0x04690000 0x10000>;
66 };
67 ...
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