cpufreq: Notify all policy->cpus in cpufreq_notify_transition()

policy->cpus contains all online cpus that have single shared clock line. And
their frequencies are always updated together.

Many SMP system's cpufreq drivers take care of this in individual drivers but
the best place for this code is in cpufreq core.

This patch modifies cpufreq_notify_transition() to notify frequency change for
all cpus in policy->cpus and hence updates all users of this API.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 2 insertions, 4 deletions

diff --git a/arch/arm/mach-integrator/cpu.c b/arch/arm/mach-integrator/cpu.c
index 590c192cdf4d..df863c30771c 100644
--- a/arch/arm/mach-integrator/cpu.c
+++ b/arch/arm/mach-integrator/cpu.c
@@ -123,14 +123,12 @@ static int integrator_set_target(struct cpufreq_policy *policy,
         vco = icst_hz_to_vco(&cclk_params, target_freq * 1000);
         freqs.new = icst_hz(&cclk_params, vco) / 1000;
 
-        freqs.cpu = policy->cpu;
-
         if (freqs.old == freqs.new) {
                 set_cpus_allowed(current, cpus_allowed);
                 return 0;
         }
 
-        cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+        cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
         cm_osc = __raw_readl(CM_OSC);
 
@@ -151,7 +149,7 @@ static int integrator_set_target(struct cpufreq_policy *policy,
          */
         set_cpus_allowed(current, cpus_allowed);
 
-        cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+        cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 
         return 0;
 }