diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 4a33518..3e6150f 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1236,6 +1236,7 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 		}

 		/* Populate Updated C-state information */
+		acpi_processor_get_power_info(pr);
 		acpi_processor_setup_cpuidle_states(pr);

 		/* Enable all cpuidle devices */