--- bab1aa677de13ac98940a34eb4fd07c95c1db857
+++ 4a22877264a8314b6be6ff83c13ac9860663b70d
@@ -679,6 +679,59 @@ static ssize_t show_bios_limit(struct cp
 	return sprintf(buf, "%u\n", policy->cpuinfo.max_freq);
 }
 
+#ifdef CONFIG_VDD_USERSPACE
+extern ssize_t acpuclk_get_vdd_levels_str(char *buf);
+static ssize_t show_vdd_levels(struct kobject *a, struct attribute *b, char *buf)
+{
+	return acpuclk_get_vdd_levels_str(buf);
+}
+
+extern void acpuclk_set_vdd(unsigned acpu_khz, int vdd);
+static ssize_t store_vdd_levels(struct kobject *a, struct attribute *b, const char *buf, size_t count)
+{
+	int i = 0, j;
+	int pair[2] = { 0, 0 };
+	int sign = 0;
+	if (count < 1)
+		return 0;
+	if (buf[0] == '-') {
+		sign = -1;
+		i++;
+	}
+	else if (buf[0] == '+') {
+		sign = 1;
+		i++;
+	}
+	for (j = 0; i < count; i++) {
+		char c = buf[i];
+		if ((c >= '0') && (c <= '9')) {
+			pair[j] *= 10;
+			pair[j] += (c - '0');
+		}
+		else if ((c == ' ') || (c == '\t')) {
+			if (pair[j] != 0) {
+				j++;
+				if ((sign != 0) || (j > 1))
+					break;
+			}
+		}
+		else
+			break;
+	}
+	if (sign != 0) {
+		if (pair[0] > 0)
+			acpuclk_set_vdd(0, sign * pair[0]);
+	}
+	else {
+		if ((pair[0] > 0) && (pair[1] > 0))
+			acpuclk_set_vdd((unsigned)pair[0], pair[1]);
+		else
+			return -EINVAL;
+	}
+	return count;
+}
+#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);
@@ -697,6 +750,10 @@ 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
+
 static struct attribute *default_attrs[] = {
 	&cpuinfo_min_freq.attr,
 	&cpuinfo_max_freq.attr,
@@ -715,6 +772,18 @@ 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);
 
@@ -2320,6 +2389,9 @@ 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;
@@ -2337,6 +2409,10 @@ static int __init cpufreq_core_init(void
 #endif
 	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);