From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lukasz Majewski 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> References: <1370502472-7249-1-git-send-email-l.majewski@samsung.com> <1372927830-2949-1-git-send-email-l.majewski@samsung.com> Return-path: 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 In-reply-to: <1372927830-2949-1-git-send-email-l.majewski@samsung.com> Sender: linux-pm-owner@vger.kernel.org List-Id: linux-pm@vger.kernel.org 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 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 */ -- 1.7.10.4