MSM8916 is similar to the other SoCs that had the RPM stats node added
in commit 290bc68 ("arm64: dts: qcom: Enable RPM Sleep stats").
However, the dynamic offset readable at 0x14 seems only available on
some of the newer RPM firmware versions.

To be absolutely sure, this series adds a new qcom,rpm-legacy-stats
compatible that reads the sleep stats from a fixed offset of 0xdba0.
This approach was originally suggested by Maulik Shah in:
https://lore.kernel.org/linux-arm-msm/c22d57cc-025b-5a8c-91d5-5385292da49f@codeaurora.org/ (local)

Stephan Gerhold (3):
  dt-bindings: soc: qcom: stats: Document qcom,rpm-legacy-stats
  soc: qcom: stats: Add fixed sleep stats offset for older RPM firmwares
  arm64: dts: qcom: msm8916: Add RPM sleep stats

 .../devicetree/bindings/soc/qcom/qcom-stats.yaml       |  2 ++
 arch/arm64/boot/dts/qcom/msm8916.dtsi                  |  5 +++++
 drivers/soc/qcom/qcom_stats.c                          | 10 ++++++++++
 3 files changed, 17 insertions(+)

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2.33.0