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A generic "qcom,rpm-stats" compatible only reads SoC LPM stats like vmin and vlow. Document shikra rpm compatible to read subsystem LPM stats too along with SoC LPM stats. Reviewed-by: Maulik Shah Signed-off-by: Sneh Mankad --- Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml b/D= ocumentation/devicetree/bindings/soc/qcom/qcom-stats.yaml index 686a7ef2f48af11a0e63904ff979e40d7538de65..43751115c5b4e2943c93d37d3e2= 7c839b4057529 100644 --- a/Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml +++ b/Documentation/devicetree/bindings/soc/qcom/qcom-stats.yaml @@ -27,6 +27,7 @@ properties: - qcom,msm8226-rpm-stats - qcom,msm8916-rpm-stats - qcom,msm8974-rpm-stats + - qcom,shikra-rpm-stats =20 reg: maxItems: 1 --=20 2.34.1 From nobody Sat Jul 25 21:59:21 2026 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 16B4E3B19B1 for ; Mon, 13 Jul 2026 08:17:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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For earlier targets using RPM processor like msm8974, rpm_master_stat.c was used for subsystem LPM stats since those stats were populated in RPM MSGRAM. Here is a brief summary of previous targets and their stats configuration, along with the drivers used to display them. +---------------|----------------------------|---------------------------+ | SoC | subsystem LPM stats | SoC LPM stats | |---------------|----------------------------|---------------------------| | msm8974, | RPM processor MSGRAM | RPM processor MSGRAM | | msm8226 | (rpm_master_stat.c) | (qcom_stats.c) | |---------------|----------------------------|---------------------------| | sm6350, | SMEM (DDR) | AOP processor MSGRAM | | sdm845, etc. | (qcom_stats.c) | (qcom_stats.c) | |---------------|----------------------------|---------------------------| | Shikra | SMEM (DDR) | RPM processor MSGRAM | | | (qcom_stats.c) | (qcom_stats.c) | +---------------|----------------------------|---------------------------+ qcom_stats.c supports both the configurations for shikra, reading subsystem LPM stats from SMEM and reading SoC LPM stats from RPM MSGRAM. A generic "qcom,rpm-stats" compatible only reads SoC LPM stats like vmin and vlow. Add shikra rpm compatible and config to read subsystem LPM stats too along with SoC LPM stats. Below is an example showing LPM stats for "apss" subsystem with this change: cat /sys/kernel/debug/qcom_stats/apss Count: 2192 Last Entered At: 5498618336 Last Exited At: 5498708046 Accumulated Duration: 2046572620. Reviewed-by: Konrad Dybcio Reviewed-by: Maulik Shah Signed-off-by: Sneh Mankad --- drivers/soc/qcom/qcom_stats.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/soc/qcom/qcom_stats.c b/drivers/soc/qcom/qcom_stats.c index 2e380faf9080354fae120e74f0b9bd1f3786d3e5..2f1615e583bbc6ea596d8b73d9b= b0a2a00953cfb 100644 --- a/drivers/soc/qcom/qcom_stats.c +++ b/drivers/soc/qcom/qcom_stats.c @@ -376,6 +376,14 @@ static const struct stats_config rpm_data_dba0 =3D { .subsystem_stats_in_smem =3D false, }; =20 +static const struct stats_config rpm_data_shikra =3D { + .stats_offset =3D 0, + .num_records =3D 2, + .appended_stats_avail =3D true, + .dynamic_offset =3D true, + .subsystem_stats_in_smem =3D true, +}; + static const struct stats_config rpmh_data_sdm845 =3D { .stats_offset =3D 0x48, .num_records =3D 2, @@ -401,6 +409,7 @@ static const struct of_device_id qcom_stats_table[] =3D= { { .compatible =3D "qcom,rpm-stats", .data =3D &rpm_data }, { .compatible =3D "qcom,rpmh-stats", .data =3D &rpmh_data }, { .compatible =3D "qcom,sdm845-rpmh-stats", .data =3D &rpmh_data_sdm845 }, + { .compatible =3D "qcom,shikra-rpm-stats", .data =3D &rpm_data_shikra }, { } }; 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Shikra SoC specific compatible allows reading individual subsystem level LPM stats along with SoC level LPM stats. Change it. Keep "qcom,rpm-stats" as fallback compatible. Reviewed-by: Konrad Dybcio Signed-off-by: Sneh Mankad --- arch/arm64/boot/dts/qcom/shikra.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/qcom/shikra.dtsi b/arch/arm64/boot/dts/qco= m/shikra.dtsi index 4e5bc9e17c8ed8914733ac9fdc9b69128b40216e..b299f316e3c61858c4b380f6211= d0f36ef9fecf9 100644 --- a/arch/arm64/boot/dts/qcom/shikra.dtsi +++ b/arch/arm64/boot/dts/qcom/shikra.dtsi @@ -535,7 +535,7 @@ apss_mpm: sram@1b8 { }; =20 sram@4690000 { - compatible =3D "qcom,rpm-stats"; + compatible =3D "qcom,shikra-rpm-stats", "qcom,rpm-stats"; reg =3D <0x0 0x04690000 0x0 0x14000>; }; =20 --=20 2.34.1