Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus

[platform/kernel/linux-rpi.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 1787a0c..ff01283 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;
@@ -259,8 +257,8 @@ void opregion_enable_asle(struct drm_device *dev)
 
 static struct intel_opregion *system_opregion;
 
-int intel_opregion_video_event(struct notifier_block *nb, unsigned long val,
-                              void *data)
+static int intel_opregion_video_event(struct notifier_block *nb,
+                                     unsigned long val, void *data)
 {
        /* The only video events relevant to opregion are 0x80. These indicate
           either a docking event, lid switch or display switch request. In