From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chanwoo Choi Subject: Re: Fwd: [PATCH v2 0/8] PM / devfreq: Add NoCP devfreq-event and support busfreq on exyno5422-odroidxu3 Date: Tue, 03 May 2016 11:17:45 +0900 Message-ID: <57280A49.6060609@samsung.com> References: <1894783822.297231462168123817.JavaMail.weblogic@ep2mlwas04a> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-reply-to: <1894783822.297231462168123817.JavaMail.weblogic@ep2mlwas04a> Sender: linux-kernel-owner@vger.kernel.org To: myungjoo.ham@samsung.com, =?UTF-8?B?67CV6rK966+8?= , =?UTF-8?B?7YGs7Ims7Iuc7Yag7ZSE?= , "tomasz.figa@gmail.com" , Sylwester Nawrocki , "kgene@kernel.org" Cc: "robh@kernel.org" , "rjw@rjwysocki.net" , "robh+dt@kernel.org" , "pawel.moll@arm.com" , "mark.rutland@arm.com" , "ijc+devicetree@hellion.org.uk" , "galak@codeaurora.org" , "linux@arm.linux.org.uk" , "linux.amoon@gmail.com" , "m.reichl@fivetechno.de" , "tjakobi@math.uni-bielefeld.de" , =?UTF-8?B?64yA7J246riw?= , "linux-kernel@vger.kernel.org" , "linux-pm@vger.kernel.org" , "linux-samsung-soc@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , devicetree@vger.k List-Id: linux-pm@vger.kernel.org Dear Myungjoo, On 2016=EB=85=84 05=EC=9B=94 02=EC=9D=BC 14:48, MyungJoo Ham wrote: > Sender : =EC=B5=9C=EC=B0=AC=EC=9A=B0 S5(=EC=B1= =85=EC=9E=84)/Change Agent/Tizen Platform Lab(S/W=EC=84=BC=ED=84=B0)/=EC= =82=BC=EC=84=B1=EC=A0=84=EC=9E=90 > Date : 2016-04-15 15:32 (GMT+09:00) >> >> This patchset support the AMBA bus frequency scaling on Exynos5422-b= ased >> Odroid-XU3 board. But, this series only support the bus frequency sc= aling >> for INT (Internal) block using VDD_INT power line. >=20 > Along with Devfreq/Passive patchset, the patchset is merged in > devfreq for-4.7 tree. >=20 > https://git.kernel.org/cgit/linux/kernel/git/mzx/devfreq.git/log/?h=3D= for-4.7 >=20 > @Chanwoo: If there are commits to be merged by a tree other than Linu= x/PM, > please let me know. I'll send out pull-request soon. On Krzysztof Kozlowski's reply, dts patches will be merged on samsung-s= oc tree. and then the clock patches about exynos5420 was already merged to samsu= ng-clk tree by Sylwester. Only devfreq patches should be merged on devfreq tree. We already discussed this topic on offline. I expect that you will agai= n handle this patchset according to reply of both Krzysztof and me. Best Regards, Chanwoo Choi >=20 >=20 > Cheers, > MyungJoo >=20 >> >> Also, to support the bus frequency scaling for Exynos542x SoC, >> Exynos542x SoC has the specific 'NoC (Network on Chip) Probe' device >> to measure the transfered data traffic on NoC (Network on Chip) >> instead of PPMU (Platform Performance Monitoring Unit). NoC Probe de= vice >> provide the utilization for INT block of Exynos542x SoC. >> >> The generic exynos-bus frequency driver uses the 'NoC Probe' devfreq= -event >> device (drivers/devfreq/event/exynos-nocp.c) without any modificatio= n. >> Just add the phandle of 'NoC Probe' dt node to bus dt node. >> >> Depend on: >> This patchset depends on patch[1] which support the generic exynos-b= us >> frequency driver. >> [1] http://www.spinics.net/lists/arm-kernel/msg495976.html >> - [PATCH v9 00/20] PM / devferq: Add generic exynos bus frequency dr= iver and new passive governor >> >>