From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
We're lacking VLV_MASTER_IER setup from valleyview_irq_preinstall(), so
add it there. Also cargo cult in some POSTING_READ()s to match the other
platforms.
Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_irq.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 165cb4ecb0ad..f96a374ea624 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -3355,6 +3355,9 @@ static void valleyview_irq_preinstall(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ I915_WRITE(VLV_MASTER_IER, 0);
+ POSTING_READ(VLV_MASTER_IER);
+
gen5_gt_irq_reset(dev);
spin_lock_irq(&dev_priv->irq_lock);
@@ -3724,6 +3727,7 @@ static int valleyview_irq_postinstall(struct drm_device *dev)
spin_unlock_irq(&dev_priv->irq_lock);
I915_WRITE(VLV_MASTER_IER, MASTER_INTERRUPT_ENABLE);
+ POSTING_READ(VLV_MASTER_IER);
return 0;
}
@@ -3854,6 +3858,7 @@ static void valleyview_irq_uninstall(struct drm_device *dev)
return;
I915_WRITE(VLV_MASTER_IER, 0);
+ POSTING_READ(VLV_MASTER_IER);
gen5_gt_irq_reset(dev);
--
2.7.4
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