Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752896Ab2JJHTm (ORCPT ); Wed, 10 Oct 2012 03:19:42 -0400 Received: from mail-ie0-f174.google.com ([209.85.223.174]:50572 "EHLO mail-ie0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751526Ab2JJHTd (ORCPT ); Wed, 10 Oct 2012 03:19:33 -0400 MIME-Version: 1.0 In-Reply-To: <22177995.704311349684048797.JavaMail.weblogic@epml02> References: <22177995.704311349684048797.JavaMail.weblogic@epml02> Date: Wed, 10 Oct 2012 12:49:33 +0530 Message-ID: Subject: Re: [PATCH v4 1/3] devfreq: Core updates to support devices which can idle From: Rajagopal Venkat To: rjw@sisk.pl Cc: "mturquette@linaro.org" , =?UTF-8?B?67CV6rK966+8?= , "patches@linaro.org" , "linaro-dev@lists.linaro.org" , "linux-pm@vger.kernel.org" , "linux-kernel@vger.kernel.org" Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2204 Lines: 59 On 8 October 2012 13:44, MyungJoo Ham wrote: >> Prepare devfreq core framework to support devices which >> can idle. When device idleness is detected perhaps through >> runtime-pm, need some mechanism to suspend devfreq load >> monitoring and resume back when device is online. Present >> code continues monitoring unless device is removed from >> devfreq core. >> >> This patch introduces following design changes, >> >> - use per device work instead of global work to monitor device >> load. This enables suspend/resume of device devfreq and >> reduces monitoring code complexity. >> - decouple delayed work based load monitoring logic from core >> by introducing helpers functions to be used by governors. This >> provides flexibility for governors either to use delayed work >> based monitoring functions or to implement their own mechanism. >> - devfreq core interacts with governors via events to perform >> specific actions. These events include start/stop devfreq. >> This sets ground for adding suspend/resume events. >> >> The devfreq apis are not modified and are kept intact. >> >> Signed-off-by: Rajagopal Venkat > > Thank you! > > > Reviewed and Tested (at Exynos4210-Nuri). > > Acked-by: MyungJoo Ham > Rafael, Can this patchset be queued for v3.7? Thanks. >> --- >> Documentation/ABI/testing/sysfs-class-devfreq | 8 - >> drivers/devfreq/devfreq.c | 443 +++++++++++--------------- >> drivers/devfreq/governor.h | 11 + >> drivers/devfreq/governor_performance.c | 16 +- >> drivers/devfreq/governor_powersave.c | 16 +- >> drivers/devfreq/governor_simpleondemand.c | 24 ++ >> drivers/devfreq/governor_userspace.c | 23 +- >> include/linux/devfreq.h | 34 +- >> 8 files changed, 279 insertions(+), 296 deletions(-) >> -- Regards, Rajagopal -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/