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path: root/drivers/gpu/drm/i915/i915_opregion.c
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Diffstat (limited to 'drivers/gpu/drm/i915/i915_opregion.c')
-rw-r--r--drivers/gpu/drm/i915/i915_opregion.c18
1 files changed, 8 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/i915_opregion.c b/drivers/gpu/drm/i915/i915_opregion.c
index 1787a0c7e3a..13ae731a33d 100644
--- a/drivers/gpu/drm/i915/i915_opregion.c
+++ b/drivers/gpu/drm/i915/i915_opregion.c
@@ -235,17 +235,15 @@ void opregion_enable_asle(struct drm_device *dev)
struct opregion_asle *asle = dev_priv->opregion.asle;
if (asle) {
- u32 pipeb_stats = I915_READ(PIPEBSTAT);
if (IS_MOBILE(dev)) {
- /* Many devices trigger events with a write to the
- legacy backlight controller, so we need to ensure
- that it's able to generate interrupts */
- I915_WRITE(PIPEBSTAT, pipeb_stats |=
- I915_LEGACY_BLC_EVENT_ENABLE);
- i915_enable_irq(dev_priv, I915_ASLE_INTERRUPT |
- I915_DISPLAY_PIPE_B_EVENT_INTERRUPT);
- } else
- i915_enable_irq(dev_priv, I915_ASLE_INTERRUPT);
+ unsigned long irqflags;
+
+ spin_lock_irqsave(&dev_priv->user_irq_lock, irqflags);
+ i915_enable_pipestat(dev_priv, 1,
+ I915_LEGACY_BLC_EVENT_ENABLE);
+ spin_unlock_irqrestore(&dev_priv->user_irq_lock,
+ irqflags);
+ }
asle->tche = ASLE_ALS_EN | ASLE_BLC_EN | ASLE_PFIT_EN |
ASLE_PFMB_EN;