Merge branch 'tip/perf/core' of git://github.com/rostedt/linux into perf/core

[pandora-kernel.git] / drivers / gpu / drm / i915 / i915_irq.c

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 23d1ae6..9cbb0cd 100644 (file)
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -306,12 +306,15 @@ static void i915_hotplug_work_func(struct work_struct *work)
        struct drm_mode_config *mode_config = &dev->mode_config;
        struct intel_encoder *encoder;
 
+       mutex_lock(&mode_config->mutex);
        DRM_DEBUG_KMS("running encoder hotplug functions\n");
 
        list_for_each_entry(encoder, &mode_config->encoder_list, base.head)
                if (encoder->hot_plug)
                        encoder->hot_plug(encoder);
 
+       mutex_unlock(&mode_config->mutex);
+
        /* Just fire off a uevent and let userspace tell us what to do */
        drm_helper_hpd_irq_event(dev);
 }
@@ -2055,8 +2058,10 @@ void intel_irq_init(struct drm_device *dev)
                dev->driver->get_vblank_counter = gm45_get_vblank_counter;
        }
 
-
-       dev->driver->get_vblank_timestamp = i915_get_vblank_timestamp;
+       if (drm_core_check_feature(dev, DRIVER_MODESET))
+               dev->driver->get_vblank_timestamp = i915_get_vblank_timestamp;
+       else
+               dev->driver->get_vblank_timestamp = NULL;
        dev->driver->get_scanout_position = i915_get_crtc_scanoutpos;
 
        if (IS_IVYBRIDGE(dev)) {