drm/radeon/evergreen+: wait for the MC to settle after MC blackout

[karo-tx-linux.git] / drivers / gpu / drm / radeon / evergreen.c

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 2270867d8551d7cc2d27a1f500a212f0d58c94db..a2d478e8692a0ea4e0bf0300164c400045b4c655 100644 (file)
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1349,6 +1349,8 @@ void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *sav
                blackout &= ~BLACKOUT_MODE_MASK;
                WREG32(MC_SHARED_BLACKOUT_CNTL, blackout | 1);
        }
+       /* wait for the MC to settle */
+       udelay(100);
 }
 
 void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save)