linux-kernel - [PATCH 1/3] cpufreq: TEGRA: Set policy->cpus from driver->init()

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Date:	Fri,  1 Feb 2013 12:10:00 +0530
From:	Viresh Kumar <viresh.kumar@...aro.org>
To:	rjw@...k.pl
Cc:	cpufreq@...r.kernel.org, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, linaro-dev@...ts.linaro.org,
	robin.randhawa@....com, Steve.Bannister@....com,
	Liviu.Dudau@....com, Viresh Kumar <viresh.kumar@...aro.org>,
	Stephen Warren <swarren@...dia.com>
Subject: [PATCH 1/3] cpufreq: TEGRA: Set policy->cpus from driver->init()

For multicore SoC's, with cores sharing clock line, we are required to set
policy->cpus and policy->related_cpus with mask of cpus.

With following patch, we need to set policy->cpus with mask of all possible cpus
and policy->related_cpus would be filled automatically by the cpufreq core.

commit 4948b355e90080cd5ec1e91189f65a01e4186ef2
Author: Viresh Kumar <viresh.kumar@...aro.org>
Date:   Tue Jan 29 14:39:08 2013 +0000

    cpufreq: Simplify cpufreq_add_dev()

Current Tegra driver fills only ->related_cpus and not ->cpus, which looks to be
incorrect. Lets fix it.

Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
Cc: Stephen Warren <swarren@...dia.com>
---
 arch/arm/mach-tegra/cpu-tegra.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c
index a74d3c7..e7ddcb2 100644
--- a/arch/arm/mach-tegra/cpu-tegra.c
+++ b/arch/arm/mach-tegra/cpu-tegra.c
@@ -244,7 +244,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = 300 * 1000;
 
 	policy->shared_type = CPUFREQ_SHARED_TYPE_ALL;
-	cpumask_copy(policy->related_cpus, cpu_possible_mask);
+	cpumask_copy(policy->cpus, cpu_possible_mask);
 
 	if (policy->cpu == 0)
 		register_pm_notifier(&tegra_cpu_pm_notifier);
-- 
1.7.12.rc2.18.g61b472e


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