From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757110Ab3BFRER (ORCPT ); Wed, 6 Feb 2013 12:04:17 -0500 Received: from mail-da0-f49.google.com ([209.85.210.49]:58602 "EHLO mail-da0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755249Ab3BFRCh (ORCPT ); Wed, 6 Feb 2013 12:02:37 -0500 From: dirk.brandewie@gmail.com To: linux-kernel@vger.kernel.org, cpufreq@vger.kernel.org Cc: Dirk Brandewie Subject: [PATCH 1/5] cpufreq: Retrieve current frequency from scaling drivers with internal governors Date: Wed, 6 Feb 2013 09:02:08 -0800 Message-Id: <1360170133-5066-2-git-send-email-dirk.brandewie@gmail.com> X-Mailer: git-send-email 1.7.7.6 In-Reply-To: <1360170133-5066-1-git-send-email-dirk.brandewie@gmail.com> References: <1360170133-5066-1-git-send-email-dirk.brandewie@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Dirk Brandewie Scaling drivers that implement the cpufreq_driver.setpolicy() versus the cpufreq_driver.target() interface do not set policy->cur. Normally policy->cur is set during the call to cpufreq_driver.target() when the frequnecy request is made by the governor. If the scaling driver implements cpufreq_driver.setpolicy() and cpufreq_driver.get() interfaces use cpufreq_driver.get() to retrieve the current frequency. Signed-off-by: Dirk Brandewie Acked-by: Viresh Kumar --- drivers/cpufreq/cpufreq.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index ccc598a..bb45f93 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -1177,9 +1177,14 @@ static void cpufreq_out_of_sync(unsigned int cpu, unsigned int old_freq, */ unsigned int cpufreq_quick_get(unsigned int cpu) { - struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); + struct cpufreq_policy *policy; unsigned int ret_freq = 0; + if (cpufreq_driver && cpufreq_driver->setpolicy && + cpufreq_driver->get) + return cpufreq_driver->get(cpu); + + policy = cpufreq_cpu_get(cpu); if (policy) { ret_freq = policy->cur; cpufreq_cpu_put(policy); -- 1.7.7.6