Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-omap-h63xx.git] / drivers / gpu / drm / i915 / i915_opregion.c

diff --git a/drivers/gpu/drm/i915/i915_opregion.c b/drivers/gpu/drm/i915/i915_opregion.c
index 1787a0c7e3abf09acc363b87495190ce362db6ce..13ae731a33dba577b9a7326a9fe22daf8c1baf1c 100644 (file)
--- 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;