The RPM MSG ram includes per-subsystem low-power mode entry/exit/ residence/etc. statistics which are very useful for trying to debug what I'd call "SoC insomnia", or IOW the plaftorm refusing to drop the voltage rails to a minimum and gate the non-critical clocks. This series adds a very short and simple driver to query that data and expose it through debugfs. The base used for writing this driver is: https://github.com/sonyxperiadev/kernel/blob/aosp/LA.UM.9.14.r1/drivers/soc/qcom/rpm_master_stat.c Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx> --- Konrad Dybcio (2): dt-bindings: soc: qcom: Add RPM Master stats soc: qcom: Introduce RPM master stats driver .../bindings/soc/qcom/rpm-master-stats.yaml | 53 +++++++ drivers/soc/qcom/Kconfig | 11 ++ drivers/soc/qcom/Makefile | 1 + drivers/soc/qcom/rpm_master_stats.c | 160 +++++++++++++++++++++ 4 files changed, 225 insertions(+) --- base-commit: 8417c8f5007bf4567ccffda850a3157c7d905f67 change-id: 20230405-topic-master_stats-ba201a9af93d Best regards, -- Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
