[PATCH 12/14] drm/i915: Drop useless VLV_IIR writes from vlv_display_irq_postinstall()

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From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

The extra VLV_IIR writes at the end of vlv_display_irq_postinstall()
serve no purpose. Remove them.

The VLV_IMR/IER/IIR setup at the start of the function also seems a bit
pointless since it doesn't unmask/enable anything. But leave it be for
now.

Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_irq.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 6a00e6e..628a129 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3444,9 +3444,6 @@ static void vlv_display_irq_postinstall(struct drm_i915_private *dev_priv)
 	if (dev_priv->display_irqs_enabled)
 		valleyview_display_irqs_install(dev_priv);
 	spin_unlock_irq(&dev_priv->irq_lock);
-
-	I915_WRITE(VLV_IIR, 0xffffffff);
-	I915_WRITE(VLV_IIR, 0xffffffff);
 }
 
 static int valleyview_irq_postinstall(struct drm_device *dev)
-- 
2.0.4

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