Merge remote branch 'korg/drm-radeon-next' into drm-linus

* korg/drm-radeon-next:
  drm/radeon/kms: add additional safe regs for r4xx/rs6xx and r5xx
  drm/radeon/kms: Don't try to enable IRQ if we have no handler installed
  drm: Avoid calling vblank function is vblank wasn't initialized
  drm/radeon: mkregtable.c: close a file before exit
  drm/radeon/kms: Make sure we release AGP device if we acquired it
  drm/radeon/kms: Schedule host path read cache flush through the ring V2
  drm/radeon/kms: Workaround RV410/R420 CP errata (V3)
  drm/radeon/kms: detect sideport memory on IGP chips
  drm/radeon: fix a couple of array index errors
  drm/radeon/kms: add support for eDP (embedded DisplayPort)
  drm: Add eDP connector type
  drm/radeon/kms: pull in the latest upstream ObjectID.h changes
  drm/radeon/kms: whitespace changes to ObjectID.h
  drm/radeon/kms: fix typo in atom connector type handling

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 7998ee66b317..b98384dbd9a7 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -115,6 +115,7 @@ void drm_vblank_cleanup(struct drm_device *dev)
 
         dev->num_crtcs = 0;
 }
+EXPORT_SYMBOL(drm_vblank_cleanup);
 
 int drm_vblank_init(struct drm_device *dev, int num_crtcs)
 {
@@ -163,7 +164,6 @@ int drm_vblank_init(struct drm_device *dev, int num_crtcs)
         }
 
         dev->vblank_disable_allowed = 0;
-
         return 0;
 
 err:
@@ -493,6 +493,9 @@ EXPORT_SYMBOL(drm_vblank_off);
  */
 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc)
 {
+        /* vblank is not initialized (IRQ not installed ?) */
+        if (!dev->num_crtcs)
+                return;
         /*
          * To avoid all the problems that might happen if interrupts
          * were enabled/disabled around or between these calls, we just