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[83.9.31.123]) by smtp.gmail.com with ESMTPSA id y5-20020ac24e65000000b004ec83bc3e43sm756946lfs.192.2023.04.14.04.37.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 14 Apr 2023 04:37:19 -0700 (PDT) From: Konrad Dybcio Subject: [PATCH v3 0/2] Introduce RPM Master stats Date: Fri, 14 Apr 2023 13:37:16 +0200 Message-Id: <20230405-topic-master_stats-v3-0-2cb2ba4f2092@linaro.org> MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAOw6OWQC/4WNyw6CMBREf4V0bU0fosGV/2GMuS0FmmBLbmujI fy7F3ZudDmTmXNmlhx6l9i5mhm64pOPgYLeVcwOEHrHfUuZKaG0OIia5zh5yx+QssN7ypATN6C EhAa6RreMjgaS4wYh2IGu4TmOVE7oOv/aTNcb5cGnHPG9iYtc25+OIrng0sgO1Ek3Ta0vow+Ac R+xZyuvqP8MRYxaWho4a45SfDGWZfkAwH0mZg4BAAA= To: Andy Gross , Bjorn Andersson , Rob Herring , Krzysztof Kozlowski Cc: Marijn Suijten , linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Konrad Dybcio X-Mailer: b4 0.12.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1681472238; l=1607; i=konrad.dybcio@linaro.org; s=20230215; h=from:subject:message-id; bh=bYhUT+QZfTHYEXm+V8m5IT1o+SVPkkDJanucj8gz9sI=; b=QfjJWk1kN4OUM7t/aBRyvtZK/1Fuxetu8pG1e4EuE2nH3qkvC4FR/KoTmb7iwt2ftxIYCv36PrJN Bs0z+rBgA6YGIAgRlMPr3ByNcaXF2ms3zCqCRra+hs/F8I+8Hqqa X-Developer-Key: i=konrad.dybcio@linaro.org; a=ed25519; pk=iclgkYvtl2w05SSXO5EjjSYlhFKsJ+5OSZBjOkQuEms= Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org 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 (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,