Abel Vesa 010681df65 dt-bindings: soc: qcom: stats: Document SDM845 compatible
SDM845 is a special case compared to the other platforms that use RPMh
stats, since it only has 2 stats (aosd and cxsd), while the others have
a 3rd one (ddr).

So in order for the driver to use the dedicated stats config, we added
the SDM845 dedicated compatible, which we document here.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20220812101240.1869605-4-abel.vesa@linaro.org
2022-08-29 16:38:52 -05:00

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YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/soc/qcom/qcom-stats.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm Technologies, Inc. (QTI) Stats bindings
maintainers:
- Maulik Shah <mkshah@codeaurora.org>
description:
Always On Processor/Resource Power Manager maintains statistics of the SoC
sleep modes involving powering down of the rails and oscillator clock.
Statistics includes SoC sleep mode type, number of times low power mode were
entered, time of last entry, time of last exit and accumulated sleep duration.
properties:
compatible:
enum:
- qcom,rpmh-stats
- qcom,sdm845-rpmh-stats
- qcom,rpm-stats
# For older RPM firmware versions with fixed offset for the sleep stats
- qcom,apq8084-rpm-stats
- qcom,msm8226-rpm-stats
- qcom,msm8916-rpm-stats
- qcom,msm8974-rpm-stats
reg:
maxItems: 1
required:
- compatible
- reg
additionalProperties: false
examples:
# Example of rpmh sleep stats
- |
sram@c3f0000 {
compatible = "qcom,rpmh-stats";
reg = <0x0c3f0000 0x400>;
};
# Example of rpm sleep stats
- |
sram@4690000 {
compatible = "qcom,rpm-stats";
reg = <0x04690000 0x10000>;
};
...