--- drivers/cpufreq/cpufreq.c

+++ drivers/cpufreq/cpufreq.c

@@ -568,6 +568,11 @@ static ssize_t show_bios_limit(struct cp

return sprintf(buf, "%u\n", policy->cpuinfo.max_freq);

}

+#ifdef CONFIG_VDD_USERSPACE

+extern ssize_t store_vdd_levels(struct cpufreq_policy *policy, const char *buf, size_t count);

+extern ssize_t show_vdd_levels(struct cpufreq_policy *policy, char *buf);

+#endif // CONFIG_VDD_USERSPACE

+

cpufreq_freq_attr_ro_perm(cpuinfo_cur_freq, 0400);

cpufreq_freq_attr_ro(cpuinfo_min_freq);

cpufreq_freq_attr_ro(cpuinfo_max_freq);

@@ -583,6 +588,10 @@ cpufreq_freq_attr_rw(scaling_max_freq);

cpufreq_freq_attr_rw(scaling_governor);

cpufreq_freq_attr_rw(scaling_setspeed);

+#ifdef CONFIG_VDD_USERSPACE

+define_one_global_rw(vdd_levels);

+#endif // CONFIG_VDD_USERSPACE

+

static struct attribute *default_attrs[] = {

&cpuinfo_min_freq.attr,

&cpuinfo_max_freq.attr,

@@ -598,6 +607,18 @@ static struct attribute *default_attrs[]

NULL

};

+#ifdef CONFIG_VDD_USERSPACE

+static struct attribute *vddtbl_attrs[] = {

+ &vdd_levels.attr,

+ NULL

+};

+

+static struct attribute_group vddtbl_attr_group = {

+ .attrs = vddtbl_attrs,

+ .name = "vdd_table",

+};

+#endif /* CONFIG_VDD_USERSPACE */

+

struct kobject *cpufreq_global_kobject;

EXPORT_SYMBOL(cpufreq_global_kobject);

@@ -1881,6 +1902,9 @@ EXPORT_SYMBOL_GPL(cpufreq_unregister_dri

static int __init cpufreq_core_init(void)

{

int cpu;

+#ifdef CONFIG_VDD_USERSPACE

+ int rc;

+#endif /* CONFIG_VDD_USERSPACE */

for_each_possible_cpu(cpu) {

per_cpu(cpufreq_policy_cpu, cpu) = -1;

@@ -1892,6 +1916,10 @@ static int __init cpufreq_core_init(void

BUG_ON(!cpufreq_global_kobject);

register_syscore_ops(&cpufreq_syscore_ops);

+#ifdef CONFIG_VDD_USERSPACE

+ rc = sysfs_create_group(cpufreq_global_kobject, &vddtbl_attr_group);

+#endif /* CONFIG_VDD_USERSPACE */

+

return 0;

}

core_initcall(cpufreq_core_init);