diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index fea6f8d71fa3..ed9a1cc690be 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -1152,6 +1152,7 @@ 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 */