ACPI: Notify the _PPC evaluation status to the platform

According to the ACPI spec(section 8.4.4.3) OSPM should convey the _PPC
evaluations status to the platform if there exists the _OST object.
The _OST contains two arguments:
	The first is the PERFORMANCE notificatin event.
	The second is the status of _PPC object.
OSPM will convey the _PPC evaluation status to the platform.
Of course when the module parameter of "ignore_ppc" is added, OSPM won't
evaluate the _PPC object. But it will call the _OST object.

At the same time the _OST object will be evaluated only when the PERFORMANCE
notification event is received.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index c567b46dfa0f..773d7e76f301 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -722,7 +722,7 @@ static void acpi_processor_notify(struct acpi_device *device, u32 event)
         switch (event) {
         case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
                 saved = pr->performance_platform_limit;
-                acpi_processor_ppc_has_changed(pr);
+                acpi_processor_ppc_has_changed(pr, 1);
                 if (saved == pr->performance_platform_limit)
                         break;
                 acpi_bus_generate_proc_event(device, event,
@@ -758,7 +758,7 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb,
         struct acpi_processor *pr = per_cpu(processors, cpu);
 
         if (action == CPU_ONLINE && pr) {
-                acpi_processor_ppc_has_changed(pr);
+                acpi_processor_ppc_has_changed(pr, 0);
                 acpi_processor_cst_has_changed(pr);
                 acpi_processor_tstate_has_changed(pr);
         }
@@ -830,7 +830,7 @@ static int acpi_processor_add(struct acpi_device *device)
         arch_acpi_processor_cleanup_pdc(pr);
 
 #ifdef CONFIG_CPU_FREQ
-        acpi_processor_ppc_has_changed(pr);
+        acpi_processor_ppc_has_changed(pr, 0);
 #endif
         acpi_processor_get_throttling_info(pr);
         acpi_processor_get_limit_info(pr);