From: Niklas Cassel <niklas.cassel@linaro.org> To: linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org Cc: jorge.ramirez-ortiz@linaro.org, sboyd@kernel.org, vireshk@kernel.org, bjorn.andersson@linaro.org, ulf.hansson@linaro.org, Niklas Cassel <niklas.cassel@linaro.org>, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v2 00/14] Add support for QCOM Core Power Reduction Date: Thu, 25 Jul 2019 12:41:28 +0200 Message-ID: <20190725104144.22924-1-niklas.cassel@linaro.org> (raw) This series adds support for Core Power Reduction (CPR), a form of Adaptive Voltage Scaling (AVS), found on certain Qualcomm SoCs. This series is based on top of the qcs404 cpufreq patch series that hasn't landed yet: https://patchwork.kernel.org/project/linux-arm-msm/list/?series=137809 CPR is a technology that reduces core power on a CPU or on other device. It reads voltage settings from efuses (that have been written in production), it uses these voltage settings as initial values, for each OPP. After moving to a certain OPP, CPR monitors dynamic factors such as temperature, etc. and adjusts the voltage for that frequency accordingly to save power and meet silicon characteristic requirements. This driver has been developed together with Jorge Ramirez-Ortiz, and is based on an RFC by Stephen Boyd[1], which in turn is based on work by others on codeaurora.org[2]. [1] https://lkml.org/lkml/2015/9/18/833 [2] https://www.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/drivers/regulator/cpr-regulator.c?h=msm-3.10 Changes since V1: Added a new patch implementing dev_pm_opp_find_level_exact() in order to make the CPR OPP table in device tree cleaner. For more detailed changes, check the "Changes since V1" as comments in the individual patches, where applicable. Jorge Ramirez-Ortiz (1): cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist Niklas Cassel (11): opp: Add dev_pm_opp_find_level_exact() dt-bindings: cpufreq: qcom-nvmem: Make speedbin related properties optional cpufreq: qcom: Refactor the driver to make it easier to extend dt-bindings: cpufreq: qcom-nvmem: Support pstates provided by a power domain cpufreq: qcom: Add support for qcs404 on nvmem driver dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR dt-bindings: power: avs: Add support for CPR (Core Power Reduction) power: avs: Add support for CPR (Core Power Reduction) arm64: dts: qcom: qcs404: Add CPR and populate OPP table arm64: defconfig: enable CONFIG_QCOM_CPR arm64: defconfig: enable CONFIG_ARM_QCOM_CPUFREQ_NVMEM Sricharan R (2): dt-bindings: cpufreq: Re-organise kryo cpufreq to use it for other nvmem based qcom socs cpufreq: qcom: Re-organise kryo cpufreq to use it for other nvmem based qcom socs ...ryo-cpufreq.txt => qcom-nvmem-cpufreq.txt} | 125 +- .../devicetree/bindings/opp/qcom-opp.txt | 19 + .../bindings/power/avs/qcom,cpr.txt | 193 ++ MAINTAINERS | 13 +- arch/arm64/boot/dts/qcom/qcs404.dtsi | 142 +- arch/arm64/configs/defconfig | 2 + drivers/cpufreq/Kconfig.arm | 4 +- drivers/cpufreq/Makefile | 2 +- drivers/cpufreq/cpufreq-dt-platdev.c | 1 + drivers/cpufreq/qcom-cpufreq-kryo.c | 249 --- drivers/cpufreq/qcom-cpufreq-nvmem.c | 352 +++ drivers/opp/core.c | 48 + drivers/power/avs/Kconfig | 15 + drivers/power/avs/Makefile | 1 + drivers/power/avs/qcom-cpr.c | 1885 +++++++++++++++++ include/linux/pm_opp.h | 8 + 16 files changed, 2792 insertions(+), 267 deletions(-) rename Documentation/devicetree/bindings/opp/{kryo-cpufreq.txt => qcom-nvmem-cpufreq.txt} (87%) create mode 100644 Documentation/devicetree/bindings/opp/qcom-opp.txt create mode 100644 Documentation/devicetree/bindings/power/avs/qcom,cpr.txt delete mode 100644 drivers/cpufreq/qcom-cpufreq-kryo.c create mode 100644 drivers/cpufreq/qcom-cpufreq-nvmem.c create mode 100644 drivers/power/avs/qcom-cpr.c -- 2.21.0
next reply index Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-07-25 10:41 Niklas Cassel [this message] 2019-07-25 10:41 ` [PATCH v2 01/14] opp: Add dev_pm_opp_find_level_exact() Niklas Cassel 2019-07-26 8:03 ` Viresh Kumar 2019-07-25 10:41 ` [PATCH v2 02/14] dt-bindings: cpufreq: Re-organise kryo cpufreq to use it for other nvmem based qcom socs Niklas Cassel 2019-07-26 8:04 ` Viresh Kumar 2019-07-25 10:41 ` [PATCH v2 03/14] cpufreq: qcom: " Niklas Cassel 2019-08-18 1:06 ` Stephen Boyd 2019-07-25 10:41 ` [PATCH v2 04/14] dt-bindings: cpufreq: qcom-nvmem: Make speedbin related properties optional Niklas Cassel 2019-07-25 10:41 ` [PATCH v2 05/14] cpufreq: qcom: Refactor the driver to make it easier to extend Niklas Cassel 2019-07-25 10:41 ` [PATCH v2 06/14] dt-bindings: cpufreq: qcom-nvmem: Support pstates provided by a power domain Niklas Cassel 2019-08-16 21:21 ` Rob Herring 2019-08-19 10:09 ` [PATCH v3 " Niklas Cassel 2019-08-19 17:59 ` Stephen Boyd 2019-08-22 10:27 ` Niklas Cassel 2019-08-28 17:52 ` Stephen Boyd 2019-08-30 10:29 ` [PATCH v4 06/14] dt-bindings: opp: " Niklas Cassel 2019-07-25 10:41 ` [PATCH v2 07/14] cpufreq: qcom: Add support for qcs404 on nvmem driver Niklas Cassel 2019-07-25 10:41 ` [PATCH v2 08/14] cpufreq: Add qcs404 to cpufreq-dt-platdev blacklist Niklas Cassel 2019-07-25 10:41 ` [PATCH v2 09/14] dt-bindings: opp: Add qcom-opp bindings with properties needed for CPR Niklas Cassel 2019-08-19 10:12 ` [PATCH v3 " Niklas Cassel 2019-08-19 17:58 ` Stephen Boyd 2019-08-23 12:34 ` Rob Herring 2019-07-25 10:41 ` [PATCH v2 10/14] dt-bindings: power: avs: Add support for CPR (Core Power Reduction) Niklas Cassel 2019-08-17 6:14 ` Stephen Boyd 2019-08-22 10:20 ` Niklas Cassel 2019-07-25 10:41 ` [PATCH v2 11/14] " Niklas Cassel 2019-08-18 1:04 ` Stephen Boyd 2019-11-15 12:20 ` Niklas Cassel 2019-07-25 10:41 ` [PATCH v2 12/14] arm64: dts: qcom: qcs404: Add CPR and populate OPP table Niklas Cassel 2019-07-25 10:41 ` [PATCH v2 13/14] arm64: defconfig: enable CONFIG_QCOM_CPR Niklas Cassel 2019-07-25 10:41 ` [PATCH v2 14/14] arm64: defconfig: enable CONFIG_ARM_QCOM_CPUFREQ_NVMEM Niklas Cassel 2019-07-26 8:08 ` [PATCH v2 00/14] Add support for QCOM Core Power Reduction Viresh Kumar
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