PM / sleep: add TEST_PLATFORM support for freeze state

Invoke freeze_enter() after suspend_test(TEST_PLATFORM) being invoked.

So when setting /sys/power/pm_test to "platform", it can be used to
check if freeze state is working well after all devices are suspended
and before processors are blocked,

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c
index d4feda084a3a..5eb30aab9b99 100644
--- a/kernel/power/suspend.c
+++ b/kernel/power/suspend.c
@@ -184,6 +184,9 @@ static int suspend_enter(suspend_state_t state, bool *wakeup)
                         goto Platform_wake;
         }
 
+        if (suspend_test(TEST_PLATFORM))
+                goto Platform_wake;
+
         /*
          * PM_SUSPEND_FREEZE equals
          * frozen processes + suspended devices + idle processors.
@@ -195,9 +198,6 @@ static int suspend_enter(suspend_state_t state, bool *wakeup)
                 goto Platform_wake;
         }
 
-        if (suspend_test(TEST_PLATFORM))
-                goto Platform_wake;
-
         error = disable_nonboot_cpus();
         if (error || suspend_test(TEST_CPUS))
                 goto Enable_cpus;