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, 4 insertions, 7 deletions

diff --git a/drivers/cpufreq/gx-suspmod.c b/drivers/cpufreq/gx-suspmod.c
index 456bee058fe6..3dfc99b9ca86 100644
--- a/drivers/cpufreq/gx-suspmod.c
+++ b/drivers/cpufreq/gx-suspmod.c
@@ -251,14 +251,13 @@ static unsigned int gx_validate_speed(unsigned int khz, u8 *on_duration,
  * set cpu speed in khz.
  **/
 
-static void gx_set_cpuspeed(unsigned int khz)
+static void gx_set_cpuspeed(struct cpufreq_policy *policy, unsigned int khz)
 {
         u8 suscfg, pmer1;
         unsigned int new_khz;
         unsigned long flags;
         struct cpufreq_freqs freqs;
 
-        freqs.cpu = 0;
         freqs.old = gx_get_cpuspeed(0);
 
         new_khz = gx_validate_speed(khz, &gx_params->on_duration,
@@ -266,11 +265,9 @@ static void gx_set_cpuspeed(unsigned int khz)
 
         freqs.new = new_khz;
 
-        cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
+        cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
         local_irq_save(flags);
 
-
-
         if (new_khz != stock_freq) {
                 /* if new khz == 100% of CPU speed, it is special case */
                 switch (gx_params->cs55x0->device) {
@@ -317,7 +314,7 @@ static void gx_set_cpuspeed(unsigned int khz)
 
         gx_params->pci_suscfg = suscfg;
 
-        cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
+        cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 
         pr_debug("suspend modulation w/ duration of ON:%d us, OFF:%d us\n",
                 gx_params->on_duration * 32, gx_params->off_duration * 32);
@@ -397,7 +394,7 @@ static int cpufreq_gx_target(struct cpufreq_policy *policy,
                 tmp_freq = gx_validate_speed(tmp_freq, &tmp1, &tmp2);
         }
 
-        gx_set_cpuspeed(tmp_freq);
+        gx_set_cpuspeed(policy, tmp_freq);
 
         return 0;
 }