From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758784AbcDHSZ0 (ORCPT ); Fri, 8 Apr 2016 14:25:26 -0400 Received: from mail-io0-f195.google.com ([209.85.223.195]:34239 "EHLO mail-io0-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754287AbcDHSZY (ORCPT ); Fri, 8 Apr 2016 14:25:24 -0400 MIME-Version: 1.0 Reply-To: cw00.choi@samsung.com In-Reply-To: <5707AA47.7090506@fivetechno.de> References: <1460091646-28701-1-git-send-email-cw00.choi@samsung.com> <5707AA47.7090506@fivetechno.de> Date: Sat, 9 Apr 2016 03:25:22 +0900 Message-ID: Subject: Re: [PATCH 0/7] PM / devfreq: Add NoCP devfreq-event and support busfreq on exyno5422-odroidxu3 From: Chanwoo Choi To: Markus Reichl Cc: "myungjoo.ham@samsung.com" , Kyungmin Park , =?UTF-8?Q?Krzysztof_Koz=C5=82owski?= , Kukjin Kim , Sylwester Nawrocki , Tomasz Figa , "Rafael J. Wysocki" , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Russell King - ARM Linux , Anand Moon , Tobias Jakobi , "inki.dae@samsung.com" , linux-kernel , "linux-pm@vger.kernel.org" , linux-samsung-soc , linux-arm-kernel , devicetree Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Markus, On Fri, Apr 8, 2016 at 9:55 PM, Markus Reichl wrote: > Hi Chanwoo, > > I tested both sets on odroid XU4 and U3. > Tested-by: Markus Reichl Thanks for your test always. Best Regards, Chanwoo Choi > > Am 08.04.2016 um 07:00 schrieb Chanwoo Choi: >> This patchset support the AMBA bus frequency scaling on Exynos5422-based >> Odroid-XU3 board. But, this series only support the bus frequency scaling >> for INT (Internal) block using VDD_INT power line. >> >> 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 device >> 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 modification. >> 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-bus >> frequency driver. >> >> [1] https://lkml.org/lkml/2016/4/8/14 >> - [PATCH v8 00/20] PM / devferq: Add generic exynos bus frequency driver and new passive governor >> >> Chanwoo Choi (7): >> PM / devfreq: event: Add new Exynos NoC probe driver >> PM / devfreq: exynos: Add the detailed correlation for Exynos5422 bus >> ARM: dts: Add NoC Probe dt node for Exynos542x SoC >> dt-bindings: clock: Add the clock id for ACLK clock of Exynos542x SoC >> clk: samsung: exynos542x: Add the clock id for ACLK >> ARM: dts: Add bus nodes using VDD_INT for Exynos542x SoC >> ARM: dts: Add support of Bus frequency using VDD_INT for exynos5422-odroidxu3 >> >> .../bindings/devfreq/event/exynos-nocp.txt | 86 +++++ >> .../devicetree/bindings/devfreq/exynos-bus.txt | 19 + >> arch/arm/boot/dts/exynos5420.dtsi | 407 +++++++++++++++++++++ >> arch/arm/boot/dts/exynos5422-odroidxu3-common.dtsi | 99 +++++ >> drivers/clk/samsung/clk-exynos5420.c | 85 +++-- >> drivers/devfreq/event/Kconfig | 8 + >> drivers/devfreq/event/Makefile | 2 + >> drivers/devfreq/event/exynos-nocp.c | 247 +++++++++++++ >> drivers/devfreq/event/exynos-nocp.h | 78 ++++ >> include/dt-bindings/clock/exynos5420.h | 24 +- >> 10 files changed, 1024 insertions(+), 31 deletions(-) >> create mode 100644 Documentation/devicetree/bindings/devfreq/event/exynos-nocp.txt >> create mode 100644 drivers/devfreq/event/exynos-nocp.c >> create mode 100644 drivers/devfreq/event/exynos-nocp.h >> > > Thanks, > -- > Markus Reichl >