[Intel-gfx] [PATCH 04/11] drm/i915: Added is_intel_rpm_allowed helper

[Tilak Tangudu]

Added is_intel_rpm_allowed function to query the runtime_pm
status and disllow during suspending and resuming.

Signed-off-by: Tilak Tangudu <tilak.tang...@intel.com>
---
 drivers/gpu/drm/i915/intel_runtime_pm.c | 15 +++++++++++++++
 drivers/gpu/drm/i915/intel_runtime_pm.h |  1 +
 2 files changed, 16 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c 
b/drivers/gpu/drm/i915/intel_runtime_pm.c
index 6ed5786bcd29..3759a8596084 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
@@ -320,6 +320,21 @@ untrack_all_intel_runtime_pm_wakerefs(struct 
intel_runtime_pm *rpm)
 }
 
 #endif
+static int intel_runtime_pm_status(struct intel_runtime_pm *rpm)
+{
+       return rpm->kdev->power.runtime_status;
+}
+
+bool is_intel_rpm_allowed(struct intel_runtime_pm *rpm)
+{
+       int rpm_status;
+
+       rpm_status = intel_runtime_pm_status(rpm);
+       if (rpm_status == RPM_RESUMING || rpm_status == RPM_SUSPENDING)
+               return false;
+       else
+               return true;
+}
 
 static void
 intel_runtime_pm_acquire(struct intel_runtime_pm *rpm, bool wakelock)
diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.h 
b/drivers/gpu/drm/i915/intel_runtime_pm.h
index d9160e3ff4af..99418c3a934a 100644
--- a/drivers/gpu/drm/i915/intel_runtime_pm.h
+++ b/drivers/gpu/drm/i915/intel_runtime_pm.h
@@ -173,6 +173,7 @@ void intel_runtime_pm_init_early(struct intel_runtime_pm 
*rpm);
 void intel_runtime_pm_enable(struct intel_runtime_pm *rpm);
 void intel_runtime_pm_disable(struct intel_runtime_pm *rpm);
 void intel_runtime_pm_driver_release(struct intel_runtime_pm *rpm);
+bool is_intel_rpm_allowed(struct intel_runtime_pm *rpm);
 
 intel_wakeref_t intel_runtime_pm_get(struct intel_runtime_pm *rpm);
 intel_wakeref_t intel_runtime_pm_get_if_in_use(struct intel_runtime_pm *rpm);
-- 
2.25.1