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Fri, 26 Jul 2019 01:08:24 -0700 (PDT) Date: Fri, 26 Jul 2019 13:38:23 +0530 From: Viresh Kumar To: Niklas Cassel Subject: Re: [PATCH v2 00/14] Add support for QCOM Core Power Reduction Message-ID: <20190726080823.xwhxagv5iuhudmic@vireshk-i7> References: <20190725104144.22924-1-niklas.cassel@linaro.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20190725104144.22924-1-niklas.cassel@linaro.org> User-Agent: NeoMutt/20180716-391-311a52 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190726_010826_512166_56C12ECF X-CRM114-Status: GOOD ( 16.14 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, ulf.hansson@linaro.org, linux-pm@vger.kernel.org, sboyd@kernel.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, bjorn.andersson@linaro.org, vireshk@kernel.org, jorge.ramirez-ortiz@linaro.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 25-07-19, 12:41, Niklas Cassel wrote: > 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. Applied patches [1-9/14] to cpufreq and OPP trees and done some reordering as well to keep all binding patches together. Rob's Ack is missing on two of the binding patches and I will add them later once he provides it. Everything should be available here for you to base rest of the stuff. git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm.git cpufreq/arm/linux-next -- viresh _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel