diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_irq.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_irq.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 61cd87999df3..bff9abda81c6 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -2725,7 +2725,8 @@ static int ironlake_irq_postinstall(struct drm_device *dev) /* should always can generate irq */ I915_WRITE(DEIIR, I915_READ(DEIIR)); I915_WRITE(DEIMR, dev_priv->irq_mask); - I915_WRITE(DEIER, display_mask | DE_PIPEA_VBLANK | DE_PIPEB_VBLANK); + I915_WRITE(DEIER, display_mask | + DE_PIPEA_VBLANK | DE_PIPEB_VBLANK | DE_PCU_EVENT); POSTING_READ(DEIER); dev_priv->gt_irq_mask = ~0; @@ -2747,11 +2748,9 @@ static int ironlake_irq_postinstall(struct drm_device *dev) ibx_irq_postinstall(dev); if (IS_IRONLAKE_M(dev)) { - /* Clear & enable PCU event interrupts */ - I915_WRITE(DEIIR, DE_PCU_EVENT); - I915_WRITE(DEIER, I915_READ(DEIER) | DE_PCU_EVENT); - - /* spinlocking not required here for correctness since interrupt + /* Enable PCU event interrupts + * + * spinlocking not required here for correctness since interrupt * setup is guaranteed to run in single-threaded context. But we * need it to make the assert_spin_locked happy. */ spin_lock_irqsave(&dev_priv->irq_lock, irqflags); |
