drm/radeon/kms: use wait queue (events) for VBLANK sync

This already simplifies code significally and makes it maintaible
in case of adding memory reclocking plus voltage changing in future.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index da1177375976..3f353131bb38 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -351,6 +351,7 @@ struct radeon_irq {
         bool            sw_int;
         /* FIXME: use a define max crtc rather than hardcode it */
         bool            crtc_vblank_int[2];
+        wait_queue_head_t       vblank_queue;
         /* FIXME: use defines for max hpd/dacs */
         bool            hpd[6];
         spinlock_t sw_lock;
@@ -657,13 +658,11 @@ struct radeon_power_state {
 
 struct radeon_pm {
         struct mutex            mutex;
-        struct work_struct      reclock_work;
         struct delayed_work     idle_work;
         enum radeon_pm_state    state;
         enum radeon_pm_action   planned_action;
         unsigned long           action_timeout;
         bool                    downclocked;
-        bool                    vblank_callback;
         int                     active_crtcs;
         int                     req_vblank;
         fixed20_12              max_bandwidth;