From patchwork Thu Jul 4 08:50:24 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukasz Majewski X-Patchwork-Id: 2822371 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 5D3B5BF4A1 for ; Thu, 4 Jul 2013 08:51:38 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7C2722014B for ; Thu, 4 Jul 2013 08:51:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 534D120145 for ; Thu, 4 Jul 2013 08:51:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933677Ab3GDIvA (ORCPT ); Thu, 4 Jul 2013 04:51:00 -0400 Received: from mailout1.samsung.com ([203.254.224.24]:16694 "EHLO mailout1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756127Ab3GDIu5 (ORCPT ); Thu, 4 Jul 2013 04:50:57 -0400 Received: from epcpsbgm2.samsung.com (epcpsbgm2 [203.254.230.27]) by mailout1.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0MPE00E9DLWGDWM0@mailout1.samsung.com>; Thu, 04 Jul 2013 17:50:54 +0900 (KST) X-AuditID: cbfee61b-b7f8e6d00000524c-51-51d5376e4ec5 Received: from epmmp1.local.host ( [203.254.227.16]) by epcpsbgm2.samsung.com (EPCPMTA) with SMTP id 54.3C.21068.E6735D15; Thu, 04 Jul 2013 17:50:54 +0900 (KST) Received: from mcdsrvbld02.digital.local ([106.116.37.23]) by mmp1.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0MPE008KLLW9XTB0@mmp1.samsung.com>; Thu, 04 Jul 2013 17:50:54 +0900 (KST) From: Lukasz Majewski To: Viresh Kumar , "Rafael J. Wysocki" , Zhang Rui , Eduardo Valentin Cc: "cpufreq@vger.kernel.org" , Linux PM list , Jonghwa Lee , Lukasz Majewski , l.majewski@majess.pl, linux-kernel , Andre Przywara , Daniel Lezcano , Kukjin Kim , Myungjoo Ham Subject: [PATCH v5 1/7] cpufreq: Store cpufreq policies in a list Date: Thu, 04 Jul 2013 10:50:24 +0200 Message-id: <1372927830-2949-2-git-send-email-l.majewski@samsung.com> X-Mailer: git-send-email 1.7.10 In-reply-to: <1372927830-2949-1-git-send-email-l.majewski@samsung.com> References: <1370502472-7249-1-git-send-email-l.majewski@samsung.com> <1372927830-2949-1-git-send-email-l.majewski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrPLMWRmVeSWpSXmKPExsVy+t9jAd0886uBBls/yVv8ebuc1eJp0w92 i3mfZS3W7P/JZNF59gmzRe+Cq2wWbx5xW7x5uJnR4vKuOWwWn3uPMFrcblzBZtG/sJfJ4snD PjaLjV89HPg8Fu95yeRx59oeNo91094ye/RtWcXo8WhxC6PH8RvbmTw+b5ILYI/isklJzcks Sy3St0vgyji/4zZTwTWBivnPP7M0MM7g62Lk5JAQMJF4ufAtG4QtJnHh3nogm4tDSGARo8Tb 6+3sEE4Xk8T137dZQKrYBPQkPt99ygRiiwjMYZS4c9QdxGYWWMkscaLREcQWFnCU6F3+EayG RUBVYlbbCzCbV8BVYt+VeUwQ2+Qlnt7vA9vMKeAmcflCDxPEskZGiQ0dH1gmMPIuYGRYxSia WpBcUJyUnmukV5yYW1yal66XnJ+7iREcrM+kdzCuarA4xCjAwajEwythdSVQiDWxrLgy9xCj BAezkgivE8fVQCHelMTKqtSi/Pii0pzU4kOM0hwsSuK8B1utA4UE0hNLUrNTUwtSi2CyTByc Ug2MDRrf+ayuNKd67X/9MC1K2TWjkZdDOcyuyK3YeJZxr1H3MxkbwfcJN6tDdNkf3DPOq/lQ vPjgS/clsz6XZW9Qafj8cuWNlM7dZn+DBaPWu345px+81nXupqPqv5yLftZ8mKfyfgvbE1+V 9/evW3BosnoKbXNnW62TeqrjHmuk9+eJfX4JGYlKLMUZiYZazEXFiQCTNXVNUgIAAA== Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Policies available in a cpufreq framework are now linked together. They are accessible via cpufreq_policy_list defined at cpufreq core. Signed-off-by: Lukasz Majewski Signed-off-by: Myungjoo Ham --- Changes for v5: - Call list_add() only when device successfully added Changes for v4: - New patch drivers/cpufreq/cpufreq.c | 3 +++ include/linux/cpufreq.h | 1 + 2 files changed, 4 insertions(+) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 0937b8d..420ccb5 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -46,6 +46,7 @@ static struct cpufreq_driver *cpufreq_driver; static DEFINE_PER_CPU(struct cpufreq_policy *, cpufreq_cpu_data); static DEFINE_RWLOCK(cpufreq_driver_lock); static DEFINE_MUTEX(cpufreq_governor_lock); +static LIST_HEAD(cpufreq_policy_list); #ifdef CONFIG_HOTPLUG_CPU /* This one keeps track of the previously set governor of a removed CPU */ @@ -1054,6 +1055,7 @@ static int cpufreq_add_dev(struct device *dev, struct subsys_interface *sif) if (ret) goto err_out_unregister; + list_add(&policy->policy_list, &cpufreq_policy_list); kobject_uevent(&policy->kobj, KOBJ_ADD); module_put(cpufreq_driver->owner); pr_debug("initialization complete\n"); @@ -2056,6 +2058,7 @@ int cpufreq_unregister_driver(struct cpufreq_driver *driver) subsys_interface_unregister(&cpufreq_interface); unregister_hotcpu_notifier(&cpufreq_cpu_notifier); + list_del(&cpufreq_policy_list); write_lock_irqsave(&cpufreq_driver_lock, flags); cpufreq_driver = NULL; write_unlock_irqrestore(&cpufreq_driver_lock, flags); diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 90d5a15..d8e30fc 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -117,6 +117,7 @@ struct cpufreq_policy { struct cpufreq_real_policy user_policy; + struct list_head policy_list; struct kobject kobj; struct completion kobj_unregister; int transition_ongoing; /* Tracks transition status */