From: vincent.guittot@linaro.org (Vincent Guittot) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v2] ARM: ux500: send cpufreq notification for all cpus Date: Thu, 25 Aug 2011 08:31:20 +0200 [thread overview] Message-ID: <1314253880-2438-1-git-send-email-vincent.guittot@linaro.org> (raw) The same clock is used for all cpus so we must notify the frequency change for each one in order to update the configuration of all twd clockevents. change since V1: * use policy->cpus instead of cpu_online_mask Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> --- drivers/cpufreq/db8500-cpufreq.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/cpufreq/db8500-cpufreq.c b/drivers/cpufreq/db8500-cpufreq.c index 0d8dd1c..b893f9b 100644 --- a/drivers/cpufreq/db8500-cpufreq.c +++ b/drivers/cpufreq/db8500-cpufreq.c @@ -76,13 +76,13 @@ static int db8500_cpufreq_target(struct cpufreq_policy *policy, freqs.old = policy->cur; freqs.new = freq_table[idx].frequency; - freqs.cpu = policy->cpu; if (freqs.old == freqs.new) return 0; /* pre-change notification */ - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + for_each_cpu(freqs.cpu, policy->cpus) + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); /* request the PRCM unit for opp change */ if (prcmu_set_arm_opp(idx2opp[idx])) { @@ -91,7 +91,8 @@ static int db8500_cpufreq_target(struct cpufreq_policy *policy, } /* post change notification */ - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + for_each_cpu(freqs.cpu, policy->cpus) + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); return 0; } -- 1.7.4.1
WARNING: multiple messages have this Message-ID (diff)
From: Vincent Guittot <vincent.guittot@linaro.org> To: linus.walleij@linaro.org, cpufreq@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linaro-dev@lists.linaro.org Cc: Vincent Guittot <vincent.guittot@linaro.org>, patches@linaro.org Subject: [PATCH v2] ARM: ux500: send cpufreq notification for all cpus Date: Thu, 25 Aug 2011 08:31:20 +0200 [thread overview] Message-ID: <1314253880-2438-1-git-send-email-vincent.guittot@linaro.org> (raw) The same clock is used for all cpus so we must notify the frequency change for each one in order to update the configuration of all twd clockevents. change since V1: * use policy->cpus instead of cpu_online_mask Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> --- drivers/cpufreq/db8500-cpufreq.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/cpufreq/db8500-cpufreq.c b/drivers/cpufreq/db8500-cpufreq.c index 0d8dd1c..b893f9b 100644 --- a/drivers/cpufreq/db8500-cpufreq.c +++ b/drivers/cpufreq/db8500-cpufreq.c @@ -76,13 +76,13 @@ static int db8500_cpufreq_target(struct cpufreq_policy *policy, freqs.old = policy->cur; freqs.new = freq_table[idx].frequency; - freqs.cpu = policy->cpu; if (freqs.old == freqs.new) return 0; /* pre-change notification */ - cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); + for_each_cpu(freqs.cpu, policy->cpus) + cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); /* request the PRCM unit for opp change */ if (prcmu_set_arm_opp(idx2opp[idx])) { @@ -91,7 +91,8 @@ static int db8500_cpufreq_target(struct cpufreq_policy *policy, } /* post change notification */ - cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); + for_each_cpu(freqs.cpu, policy->cpus) + cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); return 0; } -- 1.7.4.1
next reply other threads:[~2011-08-25 6:31 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-08-25 6:31 Vincent Guittot [this message] 2011-08-25 6:31 ` [PATCH v2] ARM: ux500: send cpufreq notification for all cpus Vincent Guittot 2011-08-29 9:44 ` Linus Walleij 2011-08-29 9:44 ` Linus Walleij 2011-08-29 15:28 ` Dave Jones 2011-08-29 15:28 ` Dave Jones
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