gpio: pca953x (i2c) handles max7310 too

[linux-2.6] / drivers / cpufreq / cpufreq.c

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index d3575f5ec6d23be5dbd1fe76d275e1c10b56a9e1..1d41496ed2f83b648e1311ee8fecccbd56ad741d 100644 (file)
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -412,7 +412,7 @@ static int cpufreq_parse_governor(char *str_governor, unsigned int *policy,
                                int ret;
 
                                mutex_unlock(&cpufreq_governor_mutex);
-                               ret = request_module(name);
+                               ret = request_module("%s", name);
                                mutex_lock(&cpufreq_governor_mutex);
 
                                if (ret == 0)
@@ -583,15 +583,13 @@ out:
        i += sprintf(&buf[i], "\n");
        return i;
 }
-/**
- * show_affected_cpus - show the CPUs affected by each transition
- */
-static ssize_t show_affected_cpus(struct cpufreq_policy *policy, char *buf)
+
+static ssize_t show_cpus(cpumask_t mask, char *buf)
 {
        ssize_t i = 0;
        unsigned int cpu;
 
-       for_each_cpu_mask(cpu, policy->cpus) {
+       for_each_cpu_mask(cpu, mask) {
                if (i)
                        i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), " ");
                i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), "%u", cpu);
@@ -602,13 +600,32 @@ static ssize_t show_affected_cpus(struct cpufreq_policy *policy, char *buf)
        return i;
 }
 
+/**
+ * show_related_cpus - show the CPUs affected by each transition even if
+ * hw coordination is in use
+ */
+static ssize_t show_related_cpus(struct cpufreq_policy *policy, char *buf)
+{
+       if (cpus_empty(policy->related_cpus))
+               return show_cpus(policy->cpus, buf);
+       return show_cpus(policy->related_cpus, buf);
+}
+
+/**
+ * show_affected_cpus - show the CPUs affected by each transition
+ */
+static ssize_t show_affected_cpus(struct cpufreq_policy *policy, char *buf)
+{
+       return show_cpus(policy->cpus, buf);
+}
+
 static ssize_t store_scaling_setspeed(struct cpufreq_policy *policy,
                                        const char *buf, size_t count)
 {
        unsigned int freq = 0;
        unsigned int ret;
 
-       if (!policy->governor->store_setspeed)
+       if (!policy->governor || !policy->governor->store_setspeed)
                return -EINVAL;
 
        ret = sscanf(buf, "%u", &freq);
@@ -622,7 +639,7 @@ static ssize_t store_scaling_setspeed(struct cpufreq_policy *policy,
 
 static ssize_t show_scaling_setspeed(struct cpufreq_policy *policy, char *buf)
 {
-       if (!policy->governor->show_setspeed)
+       if (!policy->governor || !policy->governor->show_setspeed)
                return sprintf(buf, "<unsupported>\n");
 
        return policy->governor->show_setspeed(policy, buf);
@@ -646,6 +663,7 @@ define_one_ro(cpuinfo_max_freq);
 define_one_ro(scaling_available_governors);
 define_one_ro(scaling_driver);
 define_one_ro(scaling_cur_freq);
+define_one_ro(related_cpus);
 define_one_ro(affected_cpus);
 define_one_rw(scaling_min_freq);
 define_one_rw(scaling_max_freq);
@@ -658,6 +676,7 @@ static struct attribute *default_attrs[] = {
        &scaling_min_freq.attr,
        &scaling_max_freq.attr,
        &affected_cpus.attr,
+       &related_cpus.attr,
        &scaling_governor.attr,
        &scaling_driver.attr,
        &scaling_available_governors.attr,
@@ -909,13 +928,13 @@ static int cpufreq_add_dev(struct sys_device *sys_dev)
        policy->user_policy.policy = policy->policy;
        policy->user_policy.governor = policy->governor;
 
-       unlock_policy_rwsem_write(cpu);
-
        if (ret) {
                dprintk("setting policy failed\n");
                goto err_out_unregister;
        }
 
+       unlock_policy_rwsem_write(cpu);
+
        kobject_uevent(&policy->kobj, KOBJ_ADD);
        module_put(cpufreq_driver->owner);
        dprintk("initialization complete\n");