From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755428Ab2IMN6O (ORCPT ); Thu, 13 Sep 2012 09:58:14 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:34264 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753532Ab2IMN6L (ORCPT ); Thu, 13 Sep 2012 09:58:11 -0400 From: Rajagopal Venkat To: mturquette@linaro.org, myungjoo.ham@samsung.com, kyungmin.park@samsung.com, rjw@sisk.pl Cc: patches@linaro.org, linaro-dev@lists.linaro.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Rajagopal Venkat Subject: [PATCH v2 0/3] devfreq: Add support for devices which can idle Date: Thu, 13 Sep 2012 19:25:32 +0530 Message-Id: <1347544535-2772-1-git-send-email-rajagopal.venkat@linaro.org> X-Mailer: git-send-email 1.7.11.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rajagopal Venkat This patchset updates devfreq core to add support for devices which can idle. When device idleness is detected perhaps through runtime-pm, need some mechanism to suspend devfreq load monitoring and resume when device is back online. patch 1 introduce core design changes - per device work, decouple delayed work from core and event based interaction. patch 2 add devfreq suspend and resume apis. patch 3 add new sysfs attribute for governor predicted next target frequency and callback for current device frequency. The existing devfreq apis are kept intact. Two new apis devfreq_suspend_device() and devfreq_resume_device() are added to support suspend/resume of device devfreq. Changes since v1: - revised locking mechanism - added kerneldoc comments for load monitoring helper functions - Fixed minor review comments -- Rajagopal Venkat (3): devfreq: Core updates to support devices which can idle devfreq: Add suspend and resume apis devfreq: Add current freq callback in device profile Documentation/ABI/testing/sysfs-class-devfreq | 15 +- drivers/devfreq/devfreq.c | 413 +++++++++++--------------- drivers/devfreq/governor.h | 11 + drivers/devfreq/governor_performance.c | 16 +- drivers/devfreq/governor_powersave.c | 16 +- drivers/devfreq/governor_simpleondemand.c | 40 +++ drivers/devfreq/governor_userspace.c | 23 +- include/linux/devfreq.h | 46 ++- 8 files changed, 291 insertions(+), 289 deletions(-) -- 1.7.11.3