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Message-Id: <20230405-topic-master_stats-v3-0-2cb2ba4f2092@linaro.org>
Date: Fri, 14 Apr 2023 13:37:16 +0200
From: Konrad Dybcio <konrad.dybcio@...aro.org>
To: Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc: Marijn Suijten <marijn.suijten@...ainline.org>,
linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH v3 0/2] Introduce RPM Master stats
v2 -> v3:
- rename rpm-master-stats.yaml to qcom,rpm-master-stats.yaml
v2: https://lore.kernel.org/r/20230405-topic-master_stats-v2-0-51c304ecb610@linaro.org
v1 -> v2:
- Drop the `-` in /properties/compatible to make our entry be of the
correct type [1/2]
- Change %s to %d for printing out the iterator [2/2]
v1: https://lore.kernel.org/r/20230405-topic-master_stats-v1-0-1b1fa2739953@linaro.org
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@...aro.org>
---
Konrad Dybcio (2):
dt-bindings: soc: qcom: Add RPM Master stats
soc: qcom: Introduce RPM master stats driver
.../bindings/soc/qcom/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: e3342532ecd39bbd9c2ab5b9001cec1589bc37e9
change-id: 20230405-topic-master_stats-ba201a9af93d
Best regards,
--
Konrad Dybcio <konrad.dybcio@...aro.org>
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