[Intel-gfx] [PATCH 07/10] drm/i915: VLV/CHV PSR: Increase wait delay time before active PSR.

[Rodrigo Vivi]

Since active function on VLV immediately activate PSR let's give more
time for idleness.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi at intel.com>
---
 drivers/gpu/drm/i915/intel_dp.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 6829ecb..ded73ae 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -2666,6 +2666,11 @@ void intel_edp_psr_flush(struct drm_device *dev,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct drm_crtc *crtc;
 	enum pipe pipe;
+	/* On HSW/BDW Hardware controls idle_frames to go to PSR entry state
+	* However on VLV we go to PSR active state with psr work. So let's
+	* wait more time and let the user experience smoth enough.
+	*/
+	int delay = msecs_to_jiffies(HAS_DDI(dev) ? 100 : 5000);
 
 	mutex_lock(&dev_priv->psr.lock);
 	if (!dev_priv->psr.enabled) {
@@ -2688,8 +2693,7 @@ void intel_edp_psr_flush(struct drm_device *dev,
 		intel_edp_psr_exit(dev);
 
 	if (!dev_priv->psr.active && !dev_priv->psr.busy_frontbuffer_bits)
-		schedule_delayed_work(&dev_priv->psr.work,
-				      msecs_to_jiffies(100));
+		schedule_delayed_work(&dev_priv->psr.work, delay);
 	mutex_unlock(&dev_priv->psr.lock);
 }
 
-- 
1.9.3