[PATCH 2/3] drm/i915: Set adjustment to zero on Up/Down interrupts if freq is already max/min

[Sagar Arun Kamble]

From: "sagar.a.kamble at intel.com" <sagar.a.kamble at intel.com>

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
---
 drivers/gpu/drm/i915/i915_irq.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 95b4047..eb972fc 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1170,6 +1170,9 @@ static void gen6_pm_rps_work(struct work_struct *work)
 			adj *= 2;
 		else /* CHV needs even encode values */
 			adj = IS_CHERRYVIEW(dev_priv) ? 2 : 1;
+
+		if (new_delay >= dev_priv->rps.max_freq_softlimit)
+			adj = 0;
 		/*
 		 * For better performance, jump directly
 		 * to RPe if we're below it.
@@ -1191,6 +1194,9 @@ static void gen6_pm_rps_work(struct work_struct *work)
 			adj *= 2;
 		else /* CHV needs even encode values */
 			adj = IS_CHERRYVIEW(dev_priv) ? -2 : -1;
+
+		if (new_delay <= dev_priv->rps.min_freq_softlimit)
+			adj = 0;
 	} else { /* unknown event */
 		adj = 0;
 	}
-- 
1.9.1