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authorViresh Kumar <viresh.kumar@linaro.org>2013-01-29 14:39:08 +0000
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2013-02-02 00:01:16 +0100
commitfcf8058296edbc3de43adf095824fc32b067b9f8 (patch)
tree7f290019ecffbe50af0f4012eeadf4f08e162bb3 /drivers/cpufreq/spear-cpufreq.c
parentb26f72042e433642787e51fb3f40dbdd9969f6e1 (diff)
cpufreq: Simplify cpufreq_add_dev()
Currently cpufreq_add_dev() firsts allocates policy, calls driver->init() and then checks if this CPU is already managed or not. And if it is already managed, its policy is freed. We can save all this if we somehow know that CPU is managed or not in advance. policy->related_cpus contains the list of all valid sibling CPUs of policy->cpu. We can check this to see if the current CPU is already managed. From now on, platforms don't really need to set related_cpus from their init() routines, as the same work is done by core too. If a platform driver needs to set the related_cpus mask with some additional CPUs, other than CPUs present in policy->cpus, they are free to do it, though, as we don't override anything. [rjw: Changelog] Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/cpufreq/spear-cpufreq.c')
-rw-r--r--drivers/cpufreq/spear-cpufreq.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index 8ff26af622ea..fc714a65fa15 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -189,7 +189,6 @@ static int spear_cpufreq_init(struct cpufreq_policy *policy)
policy->cur = spear_cpufreq_get(0);
cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu));
- cpumask_copy(policy->related_cpus, policy->cpus);
return 0;
}